diff options
| author | Perberos <[email protected]> | 2011-11-09 18:17:43 -0300 | 
|---|---|---|
| committer | Perberos <[email protected]> | 2011-11-09 18:17:43 -0300 | 
| commit | f6ce926719943751cf65cacde7fae050593eb2d6 (patch) | |
| tree | 9224d1751678cf2d1fbd0431f128b711311c0287 /libview | |
| download | atril-f6ce926719943751cf65cacde7fae050593eb2d6.tar.bz2 atril-f6ce926719943751cf65cacde7fae050593eb2d6.tar.xz  | |
inicial
Diffstat (limited to 'libview')
35 files changed, 19036 insertions, 0 deletions
diff --git a/libview/Makefile.am b/libview/Makefile.am new file mode 100644 index 00000000..fc1e6205 --- /dev/null +++ b/libview/Makefile.am @@ -0,0 +1,163 @@ +lib_LTLIBRARIES = libevview.la + +NOINST_H_FILES =			\ +	ev-annotation-window.h		\ +	ev-loading-window.h		\ +	ev-page-cache.h			\ +	ev-pixbuf-cache.h		\ +	ev-timeline.h			\ +	ev-transition-animation.h	\ +	ev-view-accessible.h		\ +	ev-view-cursor.h		\ +	ev-view-marshal.h		\ +	ev-view-private.h + +INST_H_SRC_FILES = 			\ +	ev-document-model.h		\ +	ev-jobs.h			\ +	ev-job-scheduler.h		\ +	ev-print-operation.h	        \ +	ev-stock-icons.h		\ +	ev-view.h			\ +	ev-view-presentation.h + +INST_H_FILES = 				\ +	$(INST_H_SRC_FILES)		\ +	ev-view-type-builtins.h + +headerdir = $(includedir)/evince/$(EV_API_VERSION)/libview +header_DATA = $(INST_H_FILES) + +libevview_la_SOURCES = 			\ +	ev-annotation-window.c		\ +	ev-document-model.c		\ +	ev-loading-window.c		\ +	ev-jobs.c			\ +	ev-job-scheduler.c		\ +	ev-page-cache.c			\ +	ev-pixbuf-cache.c		\ +	ev-print-operation.c	        \ +	ev-stock-icons.c		\ +	ev-timeline.c			\ +	ev-transition-animation.c	\ +	ev-view.c			\ +	ev-view-accessible.c		\ +	ev-view-marshal.c		\ +	ev-view-cursor.c		\ +	ev-view-presentation.c		\ +	ev-view-type-builtins.c		\ +	$(NOINST_H_FILES)		\ +	$(INST_H_FILES) + +libevview_la_CPPFLAGS = \ +	-DEVINCEDATADIR=\"$(pkgdatadir)\"	\ +	-DG_LOG_DOMAIN=\"EvinceView\"		\ +	-DMATELOCALEDIR=\"$(datadir)/locale\"	\ +	-DEVINCE_COMPILATION			\ +	-I$(top_srcdir)				\ +	-I$(top_srcdir)/libdocument		\ +	-I$(top_builddir)			\ +	$(AM_CPPFLAGS) + +libevview_la_CFLAGS = \ +	$(LIBVIEW_CFLAGS)	\ +	$(WARN_CFLAGS)		\ +	$(DISABLE_DEPRECATED)	\ +	$(AM_CFLAGS) + +libevview_la_LDFLAGS = \ +	-version-info $(EV_VIEW_LT_VERSION_INFO)	\ +	-no-undefined	\ +	-export-symbols-regex "^ev_*"	\ +	$(AM_LDFLAGS) + +libevview_la_LIBADD = \ +	$(top_builddir)/libdocument/libevdocument.la \ +	$(LIBVIEW_LIBS) + +BUILT_SOURCES = 			\ +	ev-view-marshal.h		\ +	ev-view-marshal.c		\ +	ev-view-type-builtins.c		\ +	ev-view-type-builtins.h + +CLEANFILES = 				\ +	$(BUILT_SOURCES)		\ +	stamp-ev-view-type-builtins.h	\ +	stamp-ev-view-type-builtins.c + +ev-view-marshal.h: $(srcdir)/ev-view-marshal.list +	$(AM_V_GEN)$(GLIB_GENMARSHAL) --prefix=ev_view_marshal $(srcdir)/ev-view-marshal.list --header --internal > $@ + +ev-view-marshal.c: $(srcdir)/ev-view-marshal.list +	echo '#include <config.h>' > ev-view-marshal.c +	$(AM_V_GEN)$(GLIB_GENMARSHAL) --prefix=ev_view_marshal $(srcdir)/ev-view-marshal.list --header --internal --body >> $@ + +ev-view-type-builtins.h: stamp-ev-view-type-builtins.h +	@true +stamp-ev-view-type-builtins.h: ev-view-type-builtins.h.template $(INST_H_SRC_FILES) +	$(AM_V_GEN)$(GLIB_MKENUMS) --template $< $(filter-out $<,$^) > xgen-etbh \ +	&& (cmp -s xgen-etbh ev-view-type-builtins.h || cp xgen-etbh ev-view-type-builtins.h ) \ +	&& rm -f xgen-etbh \ +	&& echo timestamp > $(@F) + +ev-view-type-builtins.c: stamp-ev-view-type-builtins.c +	@true +stamp-ev-view-type-builtins.c: ev-view-type-builtins.c.template $(INST_H_SRC_FILES) +	$(AM_V_GEN)$(GLIB_MKENUMS) --template $< $(filter-out $<,$^) > xgen-etbc \ +	&& (cmp -s xgen-etbc ev-view-type-builtins.c || cp xgen-etbc ev-view-type-builtins.c ) \ +	&& rm -f xgen-etbc \ +	&& echo timestamp > $(@F) + +EXTRA_DIST = \ +	ev-view-type-builtins.c.template  \ +	ev-view-type-builtins.h.template  \ +	ev-view-marshal.list + +# GObject Introspection + +if ENABLE_INTROSPECTION + +EvinceView-$(EV_API_VERSION).gir: libevview.la Makefile $(INST_H_FILES) $(filter %.c,$(libevview_la_SOURCES)) +	$(AM_V_GEN) PKG_CONFIG_PATH=$(top_builddir):$$PKG_CONFIG_PATH \ +	$(G_IR_SCANNER) -v --namespace EvinceView \ +	--add-include-path=$(top_builddir)/libdocument \ +	--strip-prefix=Ev \ +	--nsversion=$(EV_API_VERSION) \ +	--include=GLib-2.0 \ +	--include=GObject-2.0 \ +	--include=Gio-2.0 \ +	--include=Gdk-2.0 \ +	--include=GdkPixbuf-2.0 \ +	--include=Gtk-2.0 \ +	--include=EvinceDocument-$(EV_API_VERSION) \ +	--library=evview \ +	--libtool="$(LIBTOOL)" \ +	--output $@ \ +	--pkg evince-document-$(EV_API_VERSION) \ +	--pkg evince-view-$(EV_API_VERSION) \ +	-I$(top_srcdir) \ +	-I$(top_builddir) \ +	-DEVINCE_COMPILATION \ +	$(filter %.h,$^) \ +	$(filter %.c,$^) + +girdir = $(GIRDIR) +gir_DATA = EvinceView-$(EV_API_VERSION).gir + +typelibsdir = $(GIRTYPELIBDIR) +typelibs_DATA = EvinceView-$(EV_API_VERSION).typelib + +EXTRA_DIST += $(gir_DATA) +CLEANFILES += $(gir_DATA) $(typelibs_DATA) + +%.typelib: %.gir +	$(AM_V_GEN) LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}. $(G_IR_COMPILER) \ +	--includedir=$(srcdir) \ +	--includedir=$(top_builddir)/libdocument \ +	$(G_IR_COMPILER_OPTS) \ +	$< -o $@ + +endif # ENABLE_INTROSPECTION + +-include $(top_srcdir)/git.mk diff --git a/libview/ev-annotation-window.c b/libview/ev-annotation-window.c new file mode 100644 index 00000000..6ecfafc6 --- /dev/null +++ b/libview/ev-annotation-window.c @@ -0,0 +1,654 @@ +/* ev-annotation-window.c + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2009 Carlos Garcia Campos <[email protected]> + * Copyright (C) 2007 IƱigo Martinez <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "config.h" + +#include <string.h> + +#include "ev-annotation-window.h" +#include "ev-stock-icons.h" +#include "ev-view-marshal.h" +#include "ev-document-misc.h" + +enum { +	PROP_0, +	PROP_ANNOTATION, +	PROP_PARENT +}; + +enum { +	CLOSED, +	MOVED, +	N_SIGNALS +}; + +struct _EvAnnotationWindow { +	GtkWindow     base_instance; + +	EvAnnotation *annotation; +	GtkWindow    *parent; + +	GtkWidget    *title; +	GtkWidget    *close_button; +	GtkWidget    *text_view; +	GtkWidget    *resize_se; +	GtkWidget    *resize_sw; + +	gboolean      is_open; +	EvRectangle   rect; + +	gboolean      in_move; +	gint          x; +	gint          y; +	gint          orig_x; +	gint          orig_y; +}; + +struct _EvAnnotationWindowClass { +	GtkWindowClass base_class; + +	void (* closed) (EvAnnotationWindow *window); +	void (* moved)  (EvAnnotationWindow *window, +			 gint                x, +			 gint                y); +}; + +static guint signals[N_SIGNALS]; + +G_DEFINE_TYPE (EvAnnotationWindow, ev_annotation_window, GTK_TYPE_WINDOW) + +#define EV_ICON_SIZE_ANNOT_WINDOW (ev_annotation_window_get_icon_size()) + +/* Cut and paste from gtkwindow.c */ +static void +send_focus_change (GtkWidget *widget, +		   gboolean   in) +{ +	GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE); + +	fevent->focus_change.type = GDK_FOCUS_CHANGE; +	fevent->focus_change.window = gtk_widget_get_window (widget); +	fevent->focus_change.in = in; +	if (fevent->focus_change.window) +		g_object_ref (fevent->focus_change.window); + +	gtk_widget_send_focus_change (widget, fevent); + +	gdk_event_free (fevent); +} + +static gdouble +get_screen_dpi (EvAnnotationWindow *window) +{ +	GdkScreen *screen; + +	screen = gtk_window_get_screen (GTK_WINDOW (window)); +	return ev_document_misc_get_screen_dpi (screen); +} + +static GtkIconSize +ev_annotation_window_get_icon_size (void) +{ +	static GtkIconSize icon_size = 0; + +	if (G_UNLIKELY (icon_size == 0)) +		icon_size = gtk_icon_size_register ("ev-icon-size-annot-window", 8, 8); + +	return icon_size; +} + +static void +ev_annotation_window_sync_contents (EvAnnotationWindow *window) +{ +	gchar         *contents; +	GtkTextIter    start, end; +	GtkTextBuffer *buffer; +	EvAnnotation  *annot = window->annotation; + +	buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (window->text_view)); +	gtk_text_buffer_get_bounds (buffer, &start, &end); +	contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE); +	ev_annotation_set_contents (annot, contents); +	g_free (contents); +} + +static void +ev_annotation_window_set_color (EvAnnotationWindow *window, +				GdkColor           *color) +{ +	GtkRcStyle *rc_style; +	GdkColor    gcolor; + +	gcolor = *color; + +	/* Allocate these colors */ +	gdk_colormap_alloc_color (gtk_widget_get_colormap (GTK_WIDGET (window)), +				  &gcolor, FALSE, TRUE); + +	/* Apply colors to style */ +	rc_style = gtk_widget_get_modifier_style (GTK_WIDGET (window)); +	rc_style->base[GTK_STATE_NORMAL] = gcolor; +	rc_style->bg[GTK_STATE_PRELIGHT] = gcolor; +	rc_style->bg[GTK_STATE_NORMAL] = gcolor; +	rc_style->bg[GTK_STATE_ACTIVE] = gcolor; +	rc_style->color_flags[GTK_STATE_PRELIGHT] = GTK_RC_BG; +	rc_style->color_flags[GTK_STATE_NORMAL] = GTK_RC_BG | GTK_RC_BASE; +	rc_style->color_flags[GTK_STATE_ACTIVE] = GTK_RC_BG; + +	/* Apply the style to the widgets */ +	g_object_ref (rc_style); +	gtk_widget_modify_style (GTK_WIDGET (window), rc_style); +	gtk_widget_modify_style (window->close_button, rc_style); +	gtk_widget_modify_style (window->resize_se, rc_style); +	gtk_widget_modify_style (window->resize_sw, rc_style); +	g_object_unref (rc_style); +} + +static void +ev_annotation_window_label_changed (EvAnnotationMarkup *annot, +				    GParamSpec         *pspec, +				    EvAnnotationWindow *window) +{ +	const gchar *label = ev_annotation_markup_get_label (annot); + +	gtk_window_set_title (GTK_WINDOW (window), label); +	gtk_label_set_text (GTK_LABEL (window->title), label); +} + +static void +ev_annotation_window_color_changed (EvAnnotation       *annot, +				    GParamSpec         *pspec, +				    EvAnnotationWindow *window) +{ +	GdkColor color; + +	ev_annotation_get_color (annot, &color); +	ev_annotation_window_set_color (window, &color); +} + +static void +ev_annotation_window_dispose (GObject *object) +{ +	EvAnnotationWindow *window = EV_ANNOTATION_WINDOW (object); + +	if (window->annotation) { +		ev_annotation_window_sync_contents (window); +		g_object_unref (window->annotation); +		window->annotation = NULL; +	} + +	(* G_OBJECT_CLASS (ev_annotation_window_parent_class)->dispose) (object); +} + +static void +ev_annotation_window_set_property (GObject      *object, +				   guint         prop_id, +				   const GValue *value, +				   GParamSpec   *pspec) +{ +	EvAnnotationWindow *window = EV_ANNOTATION_WINDOW (object); + +	switch (prop_id) { +	case PROP_ANNOTATION: +		window->annotation = g_value_dup_object (value); +		break; +	case PROP_PARENT: +		window->parent = g_value_get_object (value); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static gboolean +ev_annotation_window_resize (EvAnnotationWindow *window, +			     GdkEventButton     *event, +			     GtkWidget          *ebox) +{ +	if (event->type == GDK_BUTTON_PRESS && event->button == 1) { +		gtk_window_begin_resize_drag (GTK_WINDOW (window), +					      window->resize_sw == ebox ? +					      GDK_WINDOW_EDGE_SOUTH_WEST : +					      GDK_WINDOW_EDGE_SOUTH_EAST, +					      event->button, event->x_root, +					      event->y_root, event->time); +		return TRUE; +	} + +	return FALSE; +} + +static void +ev_annotation_window_set_resize_cursor (GtkWidget          *widget, +					EvAnnotationWindow *window) +{ +	GdkWindow *gdk_window = gtk_widget_get_window (widget); + +	if (!gdk_window) +		return; + +	if (gtk_widget_is_sensitive (widget)) { +		GdkDisplay *display = gtk_widget_get_display (widget); +		GdkCursor  *cursor; + +		cursor = gdk_cursor_new_for_display (display, +						     widget == window->resize_sw ? +						     GDK_BOTTOM_LEFT_CORNER : +						     GDK_BOTTOM_RIGHT_CORNER); +		gdk_window_set_cursor (gdk_window, cursor); +		gdk_cursor_unref (cursor); +	} else { +		gdk_window_set_cursor (gdk_window, NULL); +	} +} + +static gboolean +text_view_button_press (GtkWidget          *widget, +			GdkEventButton     *event, +			EvAnnotationWindow *window) +{ +	ev_annotation_window_grab_focus (window); + +	return FALSE; +} + +static void +ev_annotation_window_close (EvAnnotationWindow *window) +{ +	gtk_widget_hide (GTK_WIDGET (window)); +	g_signal_emit (window, signals[CLOSED], 0); +} + +static void +ev_annotation_window_init (EvAnnotationWindow *window) +{ +	GtkWidget *vbox, *hbox; +	GtkWidget *icon; +	GtkWidget *swindow; + +	gtk_widget_set_can_focus (GTK_WIDGET (window), TRUE); + +	vbox = gtk_vbox_new (FALSE, 0); + +	/* Title bar */ +	hbox = gtk_hbox_new (FALSE, 0); + +	icon = gtk_image_new (); /* FIXME: use the annot icon */ +	gtk_box_pack_start (GTK_BOX (hbox), icon, FALSE, FALSE, 0); +	gtk_widget_show (icon); + +	window->title = gtk_label_new (NULL); +	gtk_box_pack_start (GTK_BOX (hbox), window->title, TRUE, TRUE, 0); +	gtk_widget_show (window->title); + +	window->close_button = gtk_button_new (); +	gtk_button_set_relief (GTK_BUTTON (window->close_button), GTK_RELIEF_NONE); +	gtk_container_set_border_width (GTK_CONTAINER (window->close_button), 0); +	g_signal_connect_swapped (window->close_button, "clicked", +				  G_CALLBACK (ev_annotation_window_close), +				  window); +	icon = gtk_image_new_from_stock (EV_STOCK_CLOSE, EV_ICON_SIZE_ANNOT_WINDOW); +	gtk_container_add (GTK_CONTAINER (window->close_button), icon); +	gtk_widget_show (icon); + +	gtk_box_pack_start (GTK_BOX (hbox), window->close_button, FALSE, FALSE, 0); +	gtk_widget_show (window->close_button); + +	gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0); +	gtk_widget_show (hbox); + +	/* Contents */ +	swindow = gtk_scrolled_window_new (NULL, NULL); +	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), +					GTK_POLICY_AUTOMATIC, +					GTK_POLICY_AUTOMATIC); +	window->text_view = gtk_text_view_new (); +	gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (window->text_view), GTK_WRAP_WORD); +	g_signal_connect (window->text_view, "button_press_event", +			  G_CALLBACK (text_view_button_press), +			  window); +	gtk_container_add (GTK_CONTAINER (swindow), window->text_view); +	gtk_widget_show (window->text_view); + +	gtk_box_pack_start (GTK_BOX (vbox), swindow, TRUE, TRUE, 0); +	gtk_widget_show (swindow); + +	/* Resize bar */ +	hbox = gtk_hbox_new (FALSE, 0); + +	window->resize_sw = gtk_event_box_new (); +	gtk_widget_add_events (window->resize_sw, GDK_BUTTON_PRESS_MASK); +	g_signal_connect_swapped (window->resize_sw, "button-press-event", +				  G_CALLBACK (ev_annotation_window_resize), +				  window); +	g_signal_connect (window->resize_sw, "realize", +			  G_CALLBACK (ev_annotation_window_set_resize_cursor), +			  window); + +	icon = gtk_image_new_from_stock (EV_STOCK_RESIZE_SW, EV_ICON_SIZE_ANNOT_WINDOW); +	gtk_container_add (GTK_CONTAINER (window->resize_sw), icon); +	gtk_widget_show (icon); +	gtk_box_pack_start (GTK_BOX (hbox), window->resize_sw, FALSE, FALSE, 0); +	gtk_widget_show (window->resize_sw); + +	window->resize_se = gtk_event_box_new (); +	gtk_widget_add_events (window->resize_se, GDK_BUTTON_PRESS_MASK); +	g_signal_connect_swapped (window->resize_se, "button-press-event", +				  G_CALLBACK (ev_annotation_window_resize), +				  window); +	g_signal_connect (window->resize_se, "realize", +			  G_CALLBACK (ev_annotation_window_set_resize_cursor), +			  window); + +	icon = gtk_image_new_from_stock (EV_STOCK_RESIZE_SE, EV_ICON_SIZE_ANNOT_WINDOW); +	gtk_container_add (GTK_CONTAINER (window->resize_se), icon); +	gtk_widget_show (icon); +	gtk_box_pack_end (GTK_BOX (hbox), window->resize_se, FALSE, FALSE, 0); +	gtk_widget_show (window->resize_se); + +	gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0); +	gtk_widget_show (hbox); + +	gtk_container_add (GTK_CONTAINER (window), vbox); +	gtk_container_set_border_width (GTK_CONTAINER (window), 0); +	gtk_widget_show (vbox); + +	gtk_widget_add_events (GTK_WIDGET (window), +			       GDK_BUTTON_PRESS_MASK | +			       GDK_KEY_PRESS_MASK); +	gtk_widget_set_app_paintable (GTK_WIDGET (window), TRUE); + +	gtk_container_set_border_width (GTK_CONTAINER (window), 2); + +	gtk_window_set_accept_focus (GTK_WINDOW (window), TRUE); +	gtk_window_set_decorated (GTK_WINDOW (window), FALSE); +	gtk_window_set_skip_taskbar_hint (GTK_WINDOW (window), TRUE); +	gtk_window_set_skip_pager_hint (GTK_WINDOW (window), TRUE); +	gtk_window_set_resizable (GTK_WINDOW (window), TRUE); +} + +static GObject * +ev_annotation_window_constructor (GType                  type, +				  guint                  n_construct_properties, +				  GObjectConstructParam *construct_params) +{ +	GObject            *object; +	EvAnnotationWindow *window; +	EvAnnotation       *annot; +	EvAnnotationMarkup *markup; +	const gchar        *contents; +	const gchar        *label; +	GdkColor            color; +	EvRectangle        *rect; +	gdouble             scale; + +	object = G_OBJECT_CLASS (ev_annotation_window_parent_class)->constructor (type, +										  n_construct_properties, +										  construct_params); +	window = EV_ANNOTATION_WINDOW (object); +	annot = window->annotation; +	markup = EV_ANNOTATION_MARKUP (annot); + +	gtk_window_set_transient_for (GTK_WINDOW (window), window->parent); +	gtk_window_set_destroy_with_parent (GTK_WINDOW (window), FALSE); + +	label = ev_annotation_markup_get_label (markup); +	window->is_open = ev_annotation_markup_get_popup_is_open (markup); +	ev_annotation_markup_get_rectangle (markup, &window->rect); + +	rect = &window->rect; + +	/* Rectangle is at doc resolution (72.0) */ +	scale = get_screen_dpi (window) / 72.0; +	gtk_window_resize (GTK_WINDOW (window), +			   (gint)((rect->x2 - rect->x1) * scale), +			   (gint)((rect->y2 - rect->y1) * scale)); + +	ev_annotation_get_color (annot, &color); +	ev_annotation_window_set_color (window, &color); +	gtk_widget_set_name (GTK_WIDGET (window), ev_annotation_get_name (annot)); +	gtk_window_set_title (GTK_WINDOW (window), label); +	gtk_label_set_text (GTK_LABEL (window->title), label); + +	contents = ev_annotation_get_contents (annot); +	if (contents) { +		GtkTextBuffer *buffer; + +		buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (window->text_view)); +		gtk_text_buffer_set_text (buffer, contents, -1); +	} + +	g_signal_connect (annot, "notify::label", +			  G_CALLBACK (ev_annotation_window_label_changed), +			  window); +	g_signal_connect (annot, "notify::color", +			  G_CALLBACK (ev_annotation_window_color_changed), +			  window); + +	return object; +} + +static gboolean +ev_annotation_window_button_press_event (GtkWidget      *widget, +					 GdkEventButton *event) +{ +	EvAnnotationWindow *window = EV_ANNOTATION_WINDOW (widget); + +	if (event->type == GDK_BUTTON_PRESS && event->button == 1) { +		window->in_move = TRUE; +		window->x = event->x_root - event->x; +		window->y = event->y_root - event->y; +		gtk_window_begin_move_drag (GTK_WINDOW (widget), +					    event->button, +					    event->x_root, +					    event->y_root, +					    event->time); +		return TRUE; +	} + +	return FALSE; +} + +static gboolean +ev_annotation_window_configure_event (GtkWidget         *widget, +				      GdkEventConfigure *event) +{ +	EvAnnotationWindow *window = EV_ANNOTATION_WINDOW (widget); + +	if (window->in_move && +	    (window->x != event->x || window->y != event->y)) { +		window->x = event->x; +		window->y = event->y; +	} + +	return GTK_WIDGET_CLASS (ev_annotation_window_parent_class)->configure_event (widget, event); +} + +static gboolean +ev_annotation_window_focus_in_event (GtkWidget     *widget, +				     GdkEventFocus *event) +{ +	EvAnnotationWindow *window = EV_ANNOTATION_WINDOW (widget); + +	if (window->in_move) { +		if (window->orig_x != window->x || window->orig_y != window->y) { +			window->orig_x = window->x; +			window->orig_y = window->y; +			g_signal_emit (window, signals[MOVED], 0, window->x, window->y); +		} +		window->in_move = FALSE; +	} + +	return FALSE; +} + +static gboolean +ev_annotation_window_focus_out_event (GtkWidget     *widget, +				      GdkEventFocus *event) +{ +	EvAnnotationWindow *window = EV_ANNOTATION_WINDOW (widget); + +	ev_annotation_window_sync_contents (window); + +	return FALSE; +} + +static void +ev_annotation_window_class_init (EvAnnotationWindowClass *klass) +{ +	GObjectClass   *g_object_class = G_OBJECT_CLASS (klass); +	GtkWidgetClass *gtk_widget_class = GTK_WIDGET_CLASS (klass); + +	g_object_class->constructor = ev_annotation_window_constructor; +	g_object_class->set_property = ev_annotation_window_set_property; +	g_object_class->dispose = ev_annotation_window_dispose; + +	gtk_widget_class->button_press_event = ev_annotation_window_button_press_event; +	gtk_widget_class->configure_event = ev_annotation_window_configure_event; +	gtk_widget_class->focus_in_event = ev_annotation_window_focus_in_event; +	gtk_widget_class->focus_out_event = ev_annotation_window_focus_out_event; + +	g_object_class_install_property (g_object_class, +					 PROP_ANNOTATION, +					 g_param_spec_object ("annotation", +							      "Annotation", +							      "The annotation associated to the window", +							      EV_TYPE_ANNOTATION_MARKUP, +							      G_PARAM_WRITABLE | +							      G_PARAM_CONSTRUCT_ONLY)); +	g_object_class_install_property (g_object_class, +					 PROP_PARENT, +					 g_param_spec_object ("parent", +							      "Parent", +							      "The parent window", +							      GTK_TYPE_WINDOW, +							      G_PARAM_WRITABLE | +							      G_PARAM_CONSTRUCT_ONLY)); +	signals[CLOSED] = +		g_signal_new ("closed", +			      G_TYPE_FROM_CLASS (g_object_class), +			      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +			      G_STRUCT_OFFSET (EvAnnotationWindowClass, closed), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__VOID, +			      G_TYPE_NONE, 0, G_TYPE_NONE); +	signals[MOVED] = +		g_signal_new ("moved", +			      G_TYPE_FROM_CLASS (g_object_class), +			      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +			      G_STRUCT_OFFSET (EvAnnotationWindowClass, moved), +			      NULL, NULL, +			      ev_view_marshal_VOID__INT_INT, +			      G_TYPE_NONE, 2, +			      G_TYPE_INT, G_TYPE_INT); +} + +/* Public methods */ +GtkWidget * +ev_annotation_window_new (EvAnnotation *annot, +			  GtkWindow    *parent) +{ +	GtkWidget *window; + +	g_return_val_if_fail (EV_IS_ANNOTATION_MARKUP (annot), NULL); +	g_return_val_if_fail (GTK_IS_WINDOW (parent), NULL); + +	window = g_object_new (EV_TYPE_ANNOTATION_WINDOW, +			       "annotation", annot, +			       "parent", parent, +			       NULL); +	return window; +} + +EvAnnotation * +ev_annotation_window_get_annotation (EvAnnotationWindow *window) +{ +	g_return_val_if_fail (EV_IS_ANNOTATION_WINDOW (window), NULL); + +	return window->annotation; +} + +void +ev_annotation_window_set_annotation (EvAnnotationWindow *window, +				     EvAnnotation       *annot) +{ +	g_return_if_fail (EV_IS_ANNOTATION_WINDOW (window)); +	g_return_if_fail (EV_IS_ANNOTATION (annot)); + +	if (annot == window->annotation) +		return; + +	g_object_unref (window->annotation); +	window->annotation = g_object_ref (annot); +	ev_annotation_window_sync_contents (window); +	g_object_notify (G_OBJECT (window), "annotation"); +} + +gboolean +ev_annotation_window_is_open (EvAnnotationWindow *window) +{ +	g_return_val_if_fail (EV_IS_ANNOTATION_WINDOW (window), FALSE); + +	return window->is_open; +} + +void +ev_annotation_window_get_rectangle (EvAnnotationWindow *window, +				    EvRectangle        *rect) +{ +	g_return_if_fail (EV_IS_ANNOTATION_WINDOW (window)); +	g_return_if_fail (rect != NULL); + +	*rect = window->rect; +} + +void +ev_annotation_window_set_rectangle (EvAnnotationWindow *window, +				    const EvRectangle  *rect) +{ +	g_return_if_fail (EV_IS_ANNOTATION_WINDOW (window)); +	g_return_if_fail (rect != NULL); + +	window->rect = *rect; +} + +void +ev_annotation_window_grab_focus (EvAnnotationWindow *window) +{ +	g_return_if_fail (EV_IS_ANNOTATION_WINDOW (window)); + +	if (!gtk_widget_has_focus (window->text_view)) { +		gtk_widget_grab_focus (GTK_WIDGET (window)); +		send_focus_change (window->text_view, TRUE); +	} +} + +void +ev_annotation_window_ungrab_focus (EvAnnotationWindow *window) +{ +	g_return_if_fail (EV_IS_ANNOTATION_WINDOW (window)); + +	if (gtk_widget_has_focus (window->text_view)) { +		send_focus_change (window->text_view, FALSE); +	} + +	ev_annotation_window_sync_contents (window); +} diff --git a/libview/ev-annotation-window.h b/libview/ev-annotation-window.h new file mode 100644 index 00000000..267a6a61 --- /dev/null +++ b/libview/ev-annotation-window.h @@ -0,0 +1,57 @@ +/* ev-annotation-window.h + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2009 Carlos Garcia Campos <[email protected]> + * Copyright (C) 2007 IƱigo Martinez <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef EV_ANNOTATION_WINDOW_H +#define EV_ANNOTATION_WINDOW_H + +#include <gtk/gtk.h> + +#include "ev-annotation.h" + +G_BEGIN_DECLS + +typedef struct _EvAnnotationWindow      EvAnnotationWindow; +typedef struct _EvAnnotationWindowClass EvAnnotationWindowClass; + +#define EV_TYPE_ANNOTATION_WINDOW              (ev_annotation_window_get_type()) +#define EV_ANNOTATION_WINDOW(object)           (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_ANNOTATION_WINDOW, EvAnnotationWindow)) +#define EV_ANNOTATION_WINDOW_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_ANNOTATION_WINDOW, EvAnnotationWindowClass)) +#define EV_IS_ANNOTATION_WINDOW(object)        (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_ANNOTATION_WINDOW)) +#define EV_IS_ANNOTATION_WINDOW_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE((klass), EV_TYPE_ANNOTATION_WINDOW)) +#define EV_ANNOTATION_WINDOW_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_ANNOTATION_WINDOW, EvAnnotationWindowClass)) + +GType         ev_annotation_window_get_type       (void) G_GNUC_CONST; +GtkWidget    *ev_annotation_window_new            (EvAnnotation       *annot, +						   GtkWindow          *parent); +EvAnnotation *ev_annotation_window_get_annotation (EvAnnotationWindow *window); +void          ev_annotation_window_set_annotation (EvAnnotationWindow *window, +						   EvAnnotation       *annot); +gboolean      ev_annotation_window_is_open        (EvAnnotationWindow *window); +void          ev_annotation_window_get_rectangle  (EvAnnotationWindow *window, +						   EvRectangle        *rect); +void          ev_annotation_window_set_rectangle  (EvAnnotationWindow *window, +						   const EvRectangle  *rect); +void          ev_annotation_window_grab_focus     (EvAnnotationWindow *window); +void          ev_annotation_window_ungrab_focus   (EvAnnotationWindow *window); + +G_END_DECLS + +#endif /* EV_ANNOTATION_WINDOW_H */ diff --git a/libview/ev-document-model.c b/libview/ev-document-model.c new file mode 100644 index 00000000..a15ab5ca --- /dev/null +++ b/libview/ev-document-model.c @@ -0,0 +1,571 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2009 Carlos Garcia Campos + *  Copyright (C) 2005 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "config.h" + +#include "ev-document-model.h" +#include "ev-view-type-builtins.h" +#include "ev-view-marshal.h" + +struct _EvDocumentModel +{ +	GObject base; + +	EvDocument *document; +	gint n_pages; + +	gint page; +	gint rotation; +	gdouble scale; +	EvSizingMode sizing_mode; +	guint continuous : 1; +	guint dual_page  : 1; +	guint fullscreen : 1; +	guint inverted_colors : 1; + +	gdouble max_scale; +	gdouble min_scale; +}; + +struct _EvDocumentModelClass +{ +	GObjectClass base_class; + +	/* Signals  */ +	void (* page_changed) (EvDocumentModel *model, +			       gint             old_page, +			       gint             new_page); +}; + +enum { +	PROP_0, +	PROP_DOCUMENT, +	PROP_PAGE, +	PROP_ROTATION, +	PROP_INVERTED_COLORS, +	PROP_SCALE, +	PROP_SIZING_MODE, +	PROP_CONTINUOUS, +	PROP_DUAL_PAGE, +	PROP_FULLSCREEN +}; + +enum +{ +	PAGE_CHANGED, +	N_SIGNALS +}; + +static guint signals[N_SIGNALS] = { 0 }; + +G_DEFINE_TYPE (EvDocumentModel, ev_document_model, G_TYPE_OBJECT) + +static void +ev_document_model_finalize (GObject *object) +{ +	EvDocumentModel *model = EV_DOCUMENT_MODEL (object); + +	if (model->document) { +		g_object_unref (model->document); +		model->document = NULL; +	} + +	G_OBJECT_CLASS (ev_document_model_parent_class)->finalize (object); +} + +static void +ev_document_model_set_property (GObject      *object, +				guint         prop_id, +				const GValue *value, +				GParamSpec   *pspec) +{ +	EvDocumentModel *model = EV_DOCUMENT_MODEL (object); + +	switch (prop_id) { +	case PROP_DOCUMENT: +		ev_document_model_set_document (model, (EvDocument *)g_value_get_object (value)); +		break; +	case PROP_PAGE: +		ev_document_model_set_page (model, g_value_get_int (value)); +		break; +	case PROP_ROTATION: +		ev_document_model_set_rotation (model, g_value_get_int (value)); +		break; +	case PROP_INVERTED_COLORS: +		ev_document_model_set_inverted_colors (model, g_value_get_boolean (value)); +		break; +	case PROP_SCALE: +		ev_document_model_set_scale (model, g_value_get_double (value)); +		break; +	case PROP_SIZING_MODE: +		ev_document_model_set_sizing_mode (model, g_value_get_enum (value)); +		break; +	case PROP_CONTINUOUS: +		ev_document_model_set_continuous (model, g_value_get_boolean (value)); +		break; +	case PROP_DUAL_PAGE: +		ev_document_model_set_dual_page (model, g_value_get_boolean (value)); +		break; +	case PROP_FULLSCREEN: +		ev_document_model_set_fullscreen (model, g_value_get_boolean (value)); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static void +ev_document_model_get_property (GObject    *object, +				guint       prop_id, +				GValue     *value, +				GParamSpec *pspec) +{ +	EvDocumentModel *model = EV_DOCUMENT_MODEL (object); + +	switch (prop_id) { +	case PROP_DOCUMENT: +		g_value_set_object (value, model->document); +		break; +	case PROP_PAGE: +		g_value_set_int (value, model->page); +		break; +	case PROP_ROTATION: +		g_value_set_int (value, model->rotation); +		break; +	case PROP_INVERTED_COLORS: +		g_value_set_boolean (value, model->inverted_colors); +		break; +	case PROP_SCALE: +		g_value_set_double (value, model->scale); +		break; +	case PROP_SIZING_MODE: +		g_value_set_enum (value, model->sizing_mode); +		break; +	case PROP_CONTINUOUS: +		g_value_set_boolean (value, ev_document_model_get_continuous (model)); +		break; +	case PROP_DUAL_PAGE: +		g_value_set_boolean (value, ev_document_model_get_dual_page (model)); +		break; +	case PROP_FULLSCREEN: +		g_value_set_boolean (value, ev_document_model_get_fullscreen (model)); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static void +ev_document_model_class_init (EvDocumentModelClass *klass) +{ +	GObjectClass *g_object_class = G_OBJECT_CLASS (klass); + +	g_object_class->get_property = ev_document_model_get_property; +	g_object_class->set_property = ev_document_model_set_property; +	g_object_class->finalize = ev_document_model_finalize; + +	/* Properties */ +	g_object_class_install_property (g_object_class, +					 PROP_DOCUMENT, +					 g_param_spec_object ("document", +							      "Document", +							      "The current document", +							      EV_TYPE_DOCUMENT, +							      G_PARAM_READWRITE)); +	g_object_class_install_property (g_object_class, +					 PROP_PAGE, +					 g_param_spec_int ("page", +							   "Page", +							   "Current page", +							   -1, G_MAXINT, -1, +							   G_PARAM_READWRITE)); +	g_object_class_install_property (g_object_class, +					 PROP_ROTATION, +					 g_param_spec_int ("rotation", +							   "Rotation", +							   "Current rotation angle", +							   0, 360, 0, +							   G_PARAM_READWRITE)); +	g_object_class_install_property (g_object_class, +					 PROP_INVERTED_COLORS, +					 g_param_spec_boolean ("inverted-colors", +							       "Inverted Colors", +							       "Whether document is displayed with inverted colors", +							       FALSE, +							       G_PARAM_READWRITE)); +	g_object_class_install_property (g_object_class, +					 PROP_SCALE, +					 g_param_spec_double ("scale", +							      "Scale", +							      "Current scale factor", +							      0., G_MAXDOUBLE, 1., +							      G_PARAM_READWRITE)); +	g_object_class_install_property (g_object_class, +					 PROP_SIZING_MODE, +					 g_param_spec_enum ("sizing-mode", +							    "Sizing Mode", +							    "Current sizing mode", +							    EV_TYPE_SIZING_MODE, +							    EV_SIZING_FIT_WIDTH, +							    G_PARAM_READWRITE)); +	g_object_class_install_property (g_object_class, +					 PROP_CONTINUOUS, +					 g_param_spec_boolean ("continuous", +							       "Continuous", +							       "Whether document is displayed in continuous mode", +							       TRUE, +							       G_PARAM_READWRITE)); +	g_object_class_install_property (g_object_class, +					 PROP_DUAL_PAGE, +					 g_param_spec_boolean ("dual-page", +							       "Dual Page", +							       "Whether document is displayed in dual page mode", +							       FALSE, +							       G_PARAM_READWRITE)); +	g_object_class_install_property (g_object_class, +					 PROP_FULLSCREEN, +					 g_param_spec_boolean ("fullscreen", +							       "Fullscreen", +							       "Whether document is displayed in fullscreen mode", +							       FALSE, +							       G_PARAM_READWRITE)); + +	/* Signals */ +	signals [PAGE_CHANGED] = +		g_signal_new ("page-changed", +			      EV_TYPE_DOCUMENT_MODEL, +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvDocumentModelClass, page_changed), +			      NULL, NULL, +			      ev_view_marshal_VOID__INT_INT, +			      G_TYPE_NONE, 2, +			      G_TYPE_INT, G_TYPE_INT); +} + +static void +ev_document_model_init (EvDocumentModel *model) +{ +	model->page = -1; +	model->scale = 1.; +	model->sizing_mode = EV_SIZING_FIT_WIDTH; +	model->continuous = TRUE; +	model->inverted_colors = FALSE; +	model->min_scale = 0.; +	model->max_scale = G_MAXDOUBLE; +} + +EvDocumentModel * +ev_document_model_new (void) +{ +	return g_object_new (EV_TYPE_DOCUMENT_MODEL, NULL); +} + +EvDocumentModel * +ev_document_model_new_with_document (EvDocument *document) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT (document), NULL); + +	return g_object_new (EV_TYPE_DOCUMENT_MODEL, "document", document, NULL); +} + +void +ev_document_model_set_document (EvDocumentModel *model, +				EvDocument      *document) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); +	g_return_if_fail (EV_IS_DOCUMENT (document)); + +	if (document == model->document) +		return; + +	if (model->document) +		g_object_unref (model->document); +	model->document = g_object_ref (document); + +	model->n_pages = ev_document_get_n_pages (document); +	ev_document_model_set_page (model, CLAMP (model->page, 0, +						  model->n_pages - 1)); + +	g_object_notify (G_OBJECT (model), "document"); +} + +EvDocument * +ev_document_model_get_document (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), NULL); + +	return model->document; +} + +void +ev_document_model_set_page (EvDocumentModel *model, +			    gint             page) +{ +	gint old_page; + +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	if (model->page == page) +		return; +	if (page < 0 || (model->document && page >= model->n_pages)) +		return; + +	old_page = model->page; +	model->page = page; +	g_signal_emit (model, signals[PAGE_CHANGED], 0, old_page, page); + +	g_object_notify (G_OBJECT (model), "page"); +} + +void +ev_document_model_set_page_by_label (EvDocumentModel *model, +				     const gchar     *page_label) +{ +	gint page; + +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); +	g_return_if_fail (model->document != NULL); + +	if (ev_document_find_page_by_label (model->document, page_label, &page)) +		ev_document_model_set_page (model, page); +} + +gint +ev_document_model_get_page (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), -1); + +	return model->page; +} + +void +ev_document_model_set_scale (EvDocumentModel *model, +			     gdouble          scale) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	scale = CLAMP (scale, +		       model->sizing_mode == EV_SIZING_FREE ? +		       model->min_scale : 0, model->max_scale); + +	if (scale == model->scale) +		return; + +	model->scale = scale; + +	g_object_notify (G_OBJECT (model), "scale"); +} + +gdouble +ev_document_model_get_scale (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), 1.0); + +	return model->scale; +} + +void +ev_document_model_set_max_scale (EvDocumentModel *model, +				 gdouble          max_scale) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	if (max_scale == model->max_scale) +		return; + +	model->max_scale = max_scale; + +	if (model->scale > max_scale) +		ev_document_model_set_scale (model, max_scale); +} + +gdouble +ev_document_model_get_max_scale (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), 1.0); + +	return model->max_scale; +} + +void +ev_document_model_set_min_scale (EvDocumentModel *model, +				 gdouble          min_scale) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	if (min_scale == model->min_scale) +		return; + +	model->min_scale = min_scale; + +	if (model->scale < min_scale) +		ev_document_model_set_scale (model, min_scale); +} + +gdouble +ev_document_model_get_min_scale (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), 0.); + +	return model->min_scale; +} + +void +ev_document_model_set_sizing_mode (EvDocumentModel *model, +				   EvSizingMode     mode) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	if (mode == model->sizing_mode) +		return; + +	model->sizing_mode = mode; + +	g_object_notify (G_OBJECT (model), "sizing-mode"); +} + +EvSizingMode +ev_document_model_get_sizing_mode (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), EV_SIZING_FIT_WIDTH); + +	return model->sizing_mode; +} + +void +ev_document_model_set_rotation (EvDocumentModel *model, +				gint             rotation) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	if (rotation >= 360) +		rotation -= 360; +	else if (rotation < 0) +		rotation += 360; + +	if (rotation == model->rotation) +		return; + +	model->rotation = rotation; + +	g_object_notify (G_OBJECT (model), "rotation"); +} + +gint +ev_document_model_get_rotation (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), 0); + +	return model->rotation; +} + +void +ev_document_model_set_inverted_colors (EvDocumentModel *model, +				       gboolean         inverted_colors) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	if (inverted_colors == model->inverted_colors) +		return; + +	model->inverted_colors = inverted_colors; + +	g_object_notify (G_OBJECT (model), "inverted-colors"); +} + +gboolean +ev_document_model_get_inverted_colors (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), FALSE); + +	return model->inverted_colors; +} + +void +ev_document_model_set_continuous (EvDocumentModel *model, +				  gboolean         continuous) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	continuous = continuous != FALSE; + +	if (continuous == model->continuous) +		return; + +	model->continuous = continuous; + +	g_object_notify (G_OBJECT (model), "continuous"); +} + +gboolean +ev_document_model_get_continuous (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), TRUE); + +	return model->continuous; +} + +void +ev_document_model_set_dual_page (EvDocumentModel *model, +				 gboolean         dual_page) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	dual_page = dual_page != FALSE; + +	if (dual_page == model->dual_page) +		return; + +	model->dual_page = dual_page; + +	g_object_notify (G_OBJECT (model), "dual-page"); +} + +gboolean +ev_document_model_get_dual_page (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), FALSE); + +	return model->dual_page; +} + +void +ev_document_model_set_fullscreen (EvDocumentModel *model, +				  gboolean         fullscreen) +{ +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	fullscreen = fullscreen != FALSE; + +	if (fullscreen == model->fullscreen) +		return; + +	model->fullscreen = fullscreen; + +	g_object_notify (G_OBJECT (model), "fullscreen"); +} + +gboolean +ev_document_model_get_fullscreen (EvDocumentModel *model) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT_MODEL (model), FALSE); + +	return model->fullscreen; +} diff --git a/libview/ev-document-model.h b/libview/ev-document-model.h new file mode 100644 index 00000000..05525ebe --- /dev/null +++ b/libview/ev-document-model.h @@ -0,0 +1,87 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2009 Carlos Garcia Campos + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef __EV_DOCUMENT_MODEL_H__ +#define __EV_DOCUMENT_MODEL_H__ + +#include <glib-object.h> +#include <evince-document.h> + +G_BEGIN_DECLS + +#define EV_TYPE_DOCUMENT_MODEL            (ev_document_model_get_type ()) +#define EV_DOCUMENT_MODEL(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_DOCUMENT_MODEL, EvDocumentModel)) +#define EV_IS_DOCUMENT_MODEL(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_DOCUMENT_MODEL)) + +typedef enum { +	EV_SIZING_BEST_FIT, +	EV_SIZING_FIT_WIDTH, +	EV_SIZING_FREE, +} EvSizingMode; + +typedef struct _EvDocumentModel        EvDocumentModel; +typedef struct _EvDocumentModelClass   EvDocumentModelClass; + +GType            ev_document_model_get_type          (void) G_GNUC_CONST; +EvDocumentModel *ev_document_model_new               (void); +EvDocumentModel *ev_document_model_new_with_document (EvDocument      *document); + +void             ev_document_model_set_document      (EvDocumentModel *model, +						      EvDocument      *document); +EvDocument      *ev_document_model_get_document      (EvDocumentModel *model); +void             ev_document_model_set_page          (EvDocumentModel *model, +						      gint             page); +void             ev_document_model_set_page_by_label (EvDocumentModel *model, +						      const gchar     *page_label); +gint             ev_document_model_get_page          (EvDocumentModel *model); +void             ev_document_model_set_scale         (EvDocumentModel *model, +						      gdouble          scale); +gdouble          ev_document_model_get_scale         (EvDocumentModel *model); +void             ev_document_model_set_max_scale     (EvDocumentModel *model, +						      gdouble          max_scale); +gdouble          ev_document_model_get_max_scale     (EvDocumentModel *model); +void             ev_document_model_set_min_scale     (EvDocumentModel *model, +						      gdouble          min_scale); +gdouble          ev_document_model_get_min_scale     (EvDocumentModel *model); +void             ev_document_model_set_sizing_mode   (EvDocumentModel *model, +						      EvSizingMode     mode); +EvSizingMode     ev_document_model_get_sizing_mode   (EvDocumentModel *model); +void             ev_document_model_set_rotation      (EvDocumentModel *model, +						      gint             rotation); +gint             ev_document_model_get_rotation      (EvDocumentModel *model); +void           ev_document_model_set_inverted_colors (EvDocumentModel *model, +						      gboolean         inverted_colors); +gboolean       ev_document_model_get_inverted_colors (EvDocumentModel *model); +void             ev_document_model_set_continuous    (EvDocumentModel *model, +						      gboolean         continuous); +gboolean         ev_document_model_get_continuous    (EvDocumentModel *model); +void             ev_document_model_set_dual_page     (EvDocumentModel *model, +						      gboolean         dual_page); +gboolean         ev_document_model_get_dual_page     (EvDocumentModel *model); +void             ev_document_model_set_fullscreen    (EvDocumentModel *model, +						      gboolean         fullscreen); +gboolean         ev_document_model_get_fullscreen    (EvDocumentModel *model); + +G_END_DECLS + +#endif /* __EV_DOCUMENT_MODEL_H__ */ diff --git a/libview/ev-job-scheduler.c b/libview/ev-job-scheduler.c new file mode 100644 index 00000000..f874832f --- /dev/null +++ b/libview/ev-job-scheduler.c @@ -0,0 +1,305 @@ +/* ev-job-scheduler.c + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2008 Carlos Garcia Campos <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "ev-debug.h" +#include "ev-job-scheduler.h" + +typedef struct _EvSchedulerJob { +	EvJob         *job; +	EvJobPriority  priority; +	GSList        *job_link; +} EvSchedulerJob; + +G_LOCK_DEFINE_STATIC(job_list); +static GSList *job_list = NULL; + +static gpointer ev_job_thread_proxy               (gpointer        data); +static void     ev_scheduler_thread_job_cancelled (EvSchedulerJob *job, +						   GCancellable   *cancellable); + +/* EvJobQueue */ +static GQueue queue_urgent = G_QUEUE_INIT; +static GQueue queue_high = G_QUEUE_INIT; +static GQueue queue_low = G_QUEUE_INIT; +static GQueue queue_none = G_QUEUE_INIT; + +static GCond *job_queue_cond = NULL; +static GMutex *job_queue_mutex = NULL; +static GQueue *job_queue[EV_JOB_N_PRIORITIES] = { +	&queue_urgent, +	&queue_high, +	&queue_low, +	&queue_none +}; + +static void +ev_job_queue_push (EvSchedulerJob *job, +		   EvJobPriority   priority) +{ +	ev_debug_message (DEBUG_JOBS, "%s priority %d", EV_GET_TYPE_NAME (job->job), priority); +	 +	g_mutex_lock (job_queue_mutex); + +	g_queue_push_tail (job_queue[priority], job); +	g_cond_broadcast (job_queue_cond); +	 +	g_mutex_unlock (job_queue_mutex); +} + +static EvSchedulerJob * +ev_job_queue_get_next_unlocked (void) +{ +	gint i; +	EvSchedulerJob *job = NULL; +	 +	for (i = EV_JOB_PRIORITY_URGENT; i < EV_JOB_N_PRIORITIES; i++) { +		job = (EvSchedulerJob *) g_queue_pop_head (job_queue[i]); +		if (job) +			break; +	} + +	ev_debug_message (DEBUG_JOBS, "%s", job ? EV_GET_TYPE_NAME (job->job) : "No jobs in queue"); + +	return job; +} + +static gpointer +ev_job_scheduler_init (gpointer data) +{ +	job_queue_cond = g_cond_new (); +	job_queue_mutex = g_mutex_new (); +	g_thread_create (ev_job_thread_proxy, NULL, FALSE, NULL); +	 +	return NULL; +} + +static void +ev_scheduler_job_list_add (EvSchedulerJob *job) +{ +	ev_debug_message (DEBUG_JOBS, "%s", EV_GET_TYPE_NAME (job->job)); +	 +	G_LOCK (job_list); + +	job_list = g_slist_prepend (job_list, job); +	job->job_link = job_list; +	 +	G_UNLOCK (job_list); +} + +static void +ev_scheduler_job_list_remove (EvSchedulerJob *job) +{ +	ev_debug_message (DEBUG_JOBS, "%s", EV_GET_TYPE_NAME (job->job)); +	 +	G_LOCK (job_list); + +	job_list = g_slist_delete_link (job_list, job->job_link); +	 +	G_UNLOCK (job_list); +} + +static void +ev_scheduler_job_free (EvSchedulerJob *job) +{ +	if (!job) +		return; + +	g_object_unref (job->job); +	g_free (job); +} + +static void +ev_scheduler_job_destroy (EvSchedulerJob *job) +{ +	ev_debug_message (DEBUG_JOBS, "%s", EV_GET_TYPE_NAME (job->job)); + +	if (job->job->run_mode == EV_JOB_RUN_MAIN_LOOP) { +		g_signal_handlers_disconnect_by_func (job->job,  +						      G_CALLBACK (ev_scheduler_job_destroy), +						      job); +	} else { +		g_signal_handlers_disconnect_by_func (job->job->cancellable, +						      G_CALLBACK (ev_scheduler_thread_job_cancelled), +						      job); +	} +	 +	ev_scheduler_job_list_remove (job); +	ev_scheduler_job_free (job); +} + +static void +ev_scheduler_thread_job_cancelled (EvSchedulerJob *job, +				   GCancellable   *cancellable) +{ +	GList   *list; +	 +	ev_debug_message (DEBUG_JOBS, "%s", EV_GET_TYPE_NAME (job->job)); + +	g_mutex_lock (job_queue_mutex); + +	/* If the job is not still running, +	 * remove it from the job queue and job list. +	 * If the job is currently running, it will be +	 * destroyed as soon as it finishes.  +	 */ +	list = g_queue_find (job_queue[job->priority], job); +	if (list) { +		g_queue_delete_link (job_queue[job->priority], list); +		g_mutex_unlock (job_queue_mutex); +		ev_scheduler_job_destroy (job); +	} else { +		g_mutex_unlock (job_queue_mutex); +	} +} + +static void +ev_job_thread (EvJob *job) +{ +	gboolean result; + +	ev_debug_message (DEBUG_JOBS, "%s", EV_GET_TYPE_NAME (job)); + +	do { +		if (g_cancellable_is_cancelled (job->cancellable)) +			result = FALSE; +		else +			result = ev_job_run (job); +	} while (result); +} + +static gboolean +ev_job_idle (EvJob *job) +{ +	ev_debug_message (DEBUG_JOBS, "%s", EV_GET_TYPE_NAME (job)); + +	if (g_cancellable_is_cancelled (job->cancellable)) +		return FALSE; + +	return ev_job_run (job); +} + +static gpointer +ev_job_thread_proxy (gpointer data) +{ +	while (TRUE) { +		EvSchedulerJob *job; + +		g_mutex_lock (job_queue_mutex); +		job = ev_job_queue_get_next_unlocked (); +		if (!job) { +			g_cond_wait (job_queue_cond, job_queue_mutex); +			g_mutex_unlock (job_queue_mutex); +			continue; +		} +		g_mutex_unlock (job_queue_mutex); +		 +		ev_job_thread (job->job); +		ev_scheduler_job_destroy (job); +	} + +	return NULL; +} + +void +ev_job_scheduler_push_job (EvJob         *job, +			   EvJobPriority  priority) +{ +	static GOnce once_init = G_ONCE_INIT; +	EvSchedulerJob *s_job; + +	g_once (&once_init, ev_job_scheduler_init, NULL); + +	ev_debug_message (DEBUG_JOBS, "%s pirority %d", EV_GET_TYPE_NAME (job), priority); + +	s_job = g_new0 (EvSchedulerJob, 1); +	s_job->job = g_object_ref (job); +	s_job->priority = priority; + +	ev_scheduler_job_list_add (s_job); +	 +	switch (ev_job_get_run_mode (job)) { +	case EV_JOB_RUN_THREAD: +		g_signal_connect_swapped (job->cancellable, "cancelled", +					  G_CALLBACK (ev_scheduler_thread_job_cancelled), +					  s_job); +		ev_job_queue_push (s_job, priority); +		break; +	case EV_JOB_RUN_MAIN_LOOP: +		g_signal_connect_swapped (job, "finished", +					  G_CALLBACK (ev_scheduler_job_destroy), +					  s_job); +		g_signal_connect_swapped (job, "cancelled", +					  G_CALLBACK (ev_scheduler_job_destroy), +					  s_job); +		g_idle_add_full (G_PRIORITY_DEFAULT_IDLE, +				 (GSourceFunc)ev_job_idle, +				 g_object_ref (job), +				 (GDestroyNotify)g_object_unref); +		break; +	default: +		g_assert_not_reached (); +	} +} + +void +ev_job_scheduler_update_job (EvJob         *job, +			     EvJobPriority  priority) +{ +	GSList         *l; +	EvSchedulerJob *s_job = NULL; +	gboolean        need_resort = FALSE; + +	/* Main loop jobs are scheduled inmediately */ +	if (ev_job_get_run_mode (job) == EV_JOB_RUN_MAIN_LOOP) +		return; + +	ev_debug_message (DEBUG_JOBS, "%s pirority %d", EV_GET_TYPE_NAME (job), priority); +	 +	G_LOCK (job_list); + +	for (l = job_list; l; l = l->next) { +		s_job = (EvSchedulerJob *)l->data; + +		if (s_job->job == job) { +			need_resort = (s_job->priority != priority); +			break; +		} +	} +	 +	G_UNLOCK (job_list); + +	if (need_resort) { +		GList *list; +	 +		g_mutex_lock (job_queue_mutex); +		 +		list = g_queue_find (job_queue[s_job->priority], s_job); +		if (list) { +			ev_debug_message (DEBUG_JOBS, "Moving job %s from pirority %d to %d", +					  EV_GET_TYPE_NAME (job), s_job->priority, priority); +			g_queue_delete_link (job_queue[s_job->priority], list); +			g_queue_push_tail (job_queue[priority], s_job); +			g_cond_broadcast (job_queue_cond); +		} +		 +		g_mutex_unlock (job_queue_mutex); +	} +} + diff --git a/libview/ev-job-scheduler.h b/libview/ev-job-scheduler.h new file mode 100644 index 00000000..b099a66f --- /dev/null +++ b/libview/ev-job-scheduler.h @@ -0,0 +1,48 @@ +/* ev-job-scheduler.h + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2008 Carlos Garcia Campos <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef EV_JOB_SCHEDULER_H +#define EV_JOB_SCHEDULER_H + +#include <glib.h> +#include "ev-jobs.h" + +G_BEGIN_DECLS + +typedef enum { +	EV_JOB_PRIORITY_URGENT, /* Rendering current page range */ +	EV_JOB_PRIORITY_HIGH,   /* Rendering current thumbnail range */ +	EV_JOB_PRIORITY_LOW,    /* Rendering pages not in current range */ +	EV_JOB_PRIORITY_NONE,   /* Any other job: load, save, print, ... */ +	EV_JOB_N_PRIORITIES +} EvJobPriority; + +void ev_job_scheduler_push_job   (EvJob        *job, +				  EvJobPriority priority); +void ev_job_scheduler_update_job (EvJob        *job, +				  EvJobPriority priority); + +G_END_DECLS + +#endif /* EV_JOB_SCHEDULER_H */ diff --git a/libview/ev-jobs.c b/libview/ev-jobs.c new file mode 100644 index 00000000..ffb2d729 --- /dev/null +++ b/libview/ev-jobs.c @@ -0,0 +1,1577 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2008 Carlos Garcia Campos <[email protected]> + *  Copyright (C) 2005 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <config.h> + +#include "ev-jobs.h" +#include "ev-document-thumbnails.h" +#include "ev-document-links.h" +#include "ev-document-images.h" +#include "ev-document-forms.h" +#include "ev-file-exporter.h" +#include "ev-document-factory.h" +#include "ev-document-misc.h" +#include "ev-file-helpers.h" +#include "ev-document-fonts.h" +#include "ev-document-security.h" +#include "ev-document-find.h" +#include "ev-document-layers.h" +#include "ev-document-print.h" +#include "ev-document-annotations.h" +#include "ev-document-attachments.h" +#include "ev-document-text.h" +#include "ev-debug.h" + +#include <errno.h> +#include <glib/gstdio.h> +#include <glib/gi18n-lib.h> +#include <unistd.h> + +static void ev_job_init                   (EvJob                 *job); +static void ev_job_class_init             (EvJobClass            *class); +static void ev_job_links_init             (EvJobLinks            *job); +static void ev_job_links_class_init       (EvJobLinksClass       *class); +static void ev_job_attachments_init       (EvJobAttachments      *job); +static void ev_job_attachments_class_init (EvJobAttachmentsClass *class); +static void ev_job_annots_init            (EvJobAnnots           *job); +static void ev_job_annots_class_init      (EvJobAnnotsClass      *class); +static void ev_job_render_init            (EvJobRender           *job); +static void ev_job_render_class_init      (EvJobRenderClass      *class); +static void ev_job_page_data_init         (EvJobPageData         *job); +static void ev_job_page_data_class_init   (EvJobPageDataClass    *class); +static void ev_job_thumbnail_init         (EvJobThumbnail        *job); +static void ev_job_thumbnail_class_init   (EvJobThumbnailClass   *class); +static void ev_job_load_init    	  (EvJobLoad	         *job); +static void ev_job_load_class_init 	  (EvJobLoadClass	 *class); +static void ev_job_save_init              (EvJobSave             *job); +static void ev_job_save_class_init        (EvJobSaveClass        *class); +static void ev_job_find_init              (EvJobFind             *job); +static void ev_job_find_class_init        (EvJobFindClass        *class); +static void ev_job_layers_init            (EvJobLayers           *job); +static void ev_job_layers_class_init      (EvJobLayersClass      *class); +static void ev_job_export_init            (EvJobExport           *job); +static void ev_job_export_class_init      (EvJobExportClass      *class); +static void ev_job_print_init             (EvJobPrint            *job); +static void ev_job_print_class_init       (EvJobPrintClass       *class); + +enum { +	CANCELLED, +	FINISHED, +	LAST_SIGNAL +}; + +enum { +	FONTS_UPDATED, +	FONTS_LAST_SIGNAL +}; + +enum { +	FIND_UPDATED, +	FIND_LAST_SIGNAL +}; + +static guint job_signals[LAST_SIGNAL] = { 0 }; +static guint job_fonts_signals[FONTS_LAST_SIGNAL] = { 0 }; +static guint job_find_signals[FIND_LAST_SIGNAL] = { 0 }; + +G_DEFINE_ABSTRACT_TYPE (EvJob, ev_job, G_TYPE_OBJECT) +G_DEFINE_TYPE (EvJobLinks, ev_job_links, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobAttachments, ev_job_attachments, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobAnnots, ev_job_annots, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobRender, ev_job_render, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobPageData, ev_job_page_data, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobThumbnail, ev_job_thumbnail, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobFonts, ev_job_fonts, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobLoad, ev_job_load, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobSave, ev_job_save, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobFind, ev_job_find, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobLayers, ev_job_layers, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobExport, ev_job_export, EV_TYPE_JOB) +G_DEFINE_TYPE (EvJobPrint, ev_job_print, EV_TYPE_JOB) + +/* EvJob */ +static void +ev_job_init (EvJob *job) +{ +	job->cancellable = g_cancellable_new (); +} + +static void +ev_job_dispose (GObject *object) +{ +	EvJob *job; + +	job = EV_JOB (object); + +	if (job->document) { +		g_object_unref (job->document); +		job->document = NULL; +	} + +	if (job->cancellable) { +		g_object_unref (job->cancellable); +		job->cancellable = NULL; +	} + +	if (job->error) { +		g_error_free (job->error); +		job->error = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_parent_class)->dispose) (object); +} + +static void +ev_job_class_init (EvJobClass *class) +{ +	GObjectClass *oclass; + +	oclass = G_OBJECT_CLASS (class); + +	oclass->dispose = ev_job_dispose; + +	job_signals[CANCELLED] = +		g_signal_new ("cancelled", +			      EV_TYPE_JOB, +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvJobClass, cancelled), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__VOID, +			      G_TYPE_NONE, 0); +	job_signals [FINISHED] = +		g_signal_new ("finished", +			      EV_TYPE_JOB, +			      G_SIGNAL_RUN_FIRST, +			      G_STRUCT_OFFSET (EvJobClass, finished), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__VOID, +			      G_TYPE_NONE, 0); +} + +static gboolean +emit_finished (EvJob *job) +{ +	ev_debug_message (DEBUG_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); + +	job->idle_finished_id = 0; +	 +	if (job->cancelled) { +		ev_debug_message (DEBUG_JOBS, "%s (%p) job was cancelled, do not emit finished", EV_GET_TYPE_NAME (job), job); +	} else { +		ev_profiler_stop (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +		g_signal_emit (job, job_signals[FINISHED], 0); +	} +	 +	return FALSE; +} + +static void +ev_job_emit_finished (EvJob *job) +{ +	ev_debug_message (DEBUG_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); + +	if (g_cancellable_is_cancelled (job->cancellable)) { +		ev_debug_message (DEBUG_JOBS, "%s (%p) job was cancelled, returning", EV_GET_TYPE_NAME (job), job); +		return; +	} +	 +	job->finished = TRUE; +	 +	if (job->run_mode == EV_JOB_RUN_THREAD) { +		job->idle_finished_id = +			g_idle_add_full (G_PRIORITY_DEFAULT_IDLE, +					 (GSourceFunc)emit_finished, +					 g_object_ref (job), +					 (GDestroyNotify)g_object_unref); +	} else { +		ev_profiler_stop (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +		g_signal_emit (job, job_signals[FINISHED], 0); +	} +} + +gboolean +ev_job_run (EvJob *job) +{ +	EvJobClass *class = EV_JOB_GET_CLASS (job); +	 +	return class->run (job); +} + +void +ev_job_cancel (EvJob *job) +{ +	if (job->cancelled || (job->finished && job->idle_finished_id == 0)) +		return; + +	ev_debug_message (DEBUG_JOBS, "job %s (%p) cancelled", EV_GET_TYPE_NAME (job), job); +	ev_profiler_stop (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +	 +	/* This should never be called from a thread */ +	job->cancelled = TRUE; +	g_cancellable_cancel (job->cancellable); +	g_signal_emit (job, job_signals[CANCELLED], 0); +} + +void +ev_job_failed (EvJob       *job, +	       GQuark       domain, +	       gint         code, +	       const gchar *format, +	       ...) +{ +	va_list args; +	gchar  *message; +	 +	if (job->failed || job->finished) +		return; + +	ev_debug_message (DEBUG_JOBS, "job %s (%p) failed", EV_GET_TYPE_NAME (job), job); +	 +	job->failed = TRUE; +	 +	va_start (args, format); +	message = g_strdup_vprintf (format, args); +	va_end (args); +	 +	job->error = g_error_new_literal (domain, code, message); +	g_free (message); +	 +	ev_job_emit_finished (job);                                                                                                                +} + +void +ev_job_failed_from_error (EvJob  *job, +			  GError *error) +{ +	if (job->failed || job->finished) +		return; +	 +	ev_debug_message (DEBUG_JOBS, "job %s (%p) failed", EV_GET_TYPE_NAME (job), job); + +	job->failed = TRUE; +	job->error = g_error_copy (error); + +	ev_job_emit_finished (job); +} + +void +ev_job_succeeded (EvJob *job) +{ +	if (job->finished) +		return; + +	ev_debug_message (DEBUG_JOBS, "job %s (%p) succeeded", EV_GET_TYPE_NAME (job), job); +	 +	job->failed = FALSE; +	ev_job_emit_finished (job); +} + +gboolean +ev_job_is_finished (EvJob *job) +{ +	return job->finished; +} + +gboolean +ev_job_is_failed (EvJob *job) +{ +	return job->failed; +} + +EvJobRunMode +ev_job_get_run_mode (EvJob *job) +{ +	return job->run_mode; +} + +void +ev_job_set_run_mode (EvJob       *job, +		     EvJobRunMode run_mode) +{ +	job->run_mode = run_mode; +} + +/* EvJobLinks */ +static void +ev_job_links_init (EvJobLinks *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +} + +static void +ev_job_links_dispose (GObject *object) +{ +	EvJobLinks *job; + +	ev_debug_message (DEBUG_JOBS, NULL); +	 +	job = EV_JOB_LINKS (object); + +	if (job->model) { +		g_object_unref (job->model); +		job->model = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_links_parent_class)->dispose) (object); +} + +static gboolean +ev_job_links_run (EvJob *job) +{ +	EvJobLinks *job_links = EV_JOB_LINKS (job); + +	ev_debug_message (DEBUG_JOBS, NULL); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +	 +	ev_document_doc_mutex_lock (); +	job_links->model = ev_document_links_get_links_model (EV_DOCUMENT_LINKS (job->document)); +	ev_document_doc_mutex_unlock (); +	 +	ev_job_succeeded (job); +	 +	return FALSE; +} + +static void +ev_job_links_class_init (EvJobLinksClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_links_dispose; +	job_class->run = ev_job_links_run; +} + +EvJob * +ev_job_links_new (EvDocument *document) +{ +	EvJob *job; + +	ev_debug_message (DEBUG_JOBS, NULL); + +	job = g_object_new (EV_TYPE_JOB_LINKS, NULL); +	job->document = g_object_ref (document); +	 +	return job; +} + +/* EvJobAttachments */ +static void +ev_job_attachments_init (EvJobAttachments *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +} + +static void +ev_job_attachments_dispose (GObject *object) +{ +	EvJobAttachments *job; + +	ev_debug_message (DEBUG_JOBS, NULL); +	 +	job = EV_JOB_ATTACHMENTS (object); + +	if (job->attachments) { +		g_list_foreach (job->attachments, (GFunc)g_object_unref, NULL); +		g_list_free (job->attachments); +		job->attachments = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_attachments_parent_class)->dispose) (object); +} + +static gboolean +ev_job_attachments_run (EvJob *job) +{ +	EvJobAttachments *job_attachments = EV_JOB_ATTACHMENTS (job); + +	ev_debug_message (DEBUG_JOBS, NULL); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); + +	ev_document_doc_mutex_lock (); +	job_attachments->attachments = +		ev_document_attachments_get_attachments (EV_DOCUMENT_ATTACHMENTS (job->document)); +	ev_document_doc_mutex_unlock (); + +	ev_job_succeeded (job); + +	return FALSE; +} + +static void +ev_job_attachments_class_init (EvJobAttachmentsClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_attachments_dispose; +	job_class->run = ev_job_attachments_run; +} + +EvJob * +ev_job_attachments_new (EvDocument *document) +{ +	EvJob *job; + +	ev_debug_message (DEBUG_JOBS, NULL); + +	job = g_object_new (EV_TYPE_JOB_ATTACHMENTS, NULL); +	job->document = g_object_ref (document); +	 +	return job; +} + +/* EvJobAnnots */ +static void +ev_job_annots_init (EvJobAnnots *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +} + +static void +ev_job_annots_dispose (GObject *object) +{ +	EvJobAnnots *job; + +	ev_debug_message (DEBUG_JOBS, NULL); + +	job = EV_JOB_ANNOTS (object); + +	if (job->annots) { +		g_list_foreach (job->annots, (GFunc)ev_mapping_list_unref, NULL); +		g_list_free (job->annots); +		job->annots = NULL; +	} + +	G_OBJECT_CLASS (ev_job_annots_parent_class)->dispose (object); +} + +static gboolean +ev_job_annots_run (EvJob *job) +{ +	EvJobAnnots *job_annots = EV_JOB_ANNOTS (job); +	gint         i; + +	ev_debug_message (DEBUG_JOBS, NULL); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); + +	ev_document_doc_mutex_lock (); +	for (i = 0; i < ev_document_get_n_pages (job->document); i++) { +		EvMappingList *mapping_list; +		EvPage        *page; + +		page = ev_document_get_page (job->document, i); +		mapping_list = ev_document_annotations_get_annotations (EV_DOCUMENT_ANNOTATIONS (job->document), +									page); +		g_object_unref (page); + +		if (mapping_list) +			job_annots->annots = g_list_prepend (job_annots->annots, mapping_list); +	} +	ev_document_doc_mutex_unlock (); + +	job_annots->annots = g_list_reverse (job_annots->annots); + +	ev_job_succeeded (job); + +	return FALSE; +} + +static void +ev_job_annots_class_init (EvJobAnnotsClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_annots_dispose; +	job_class->run = ev_job_annots_run; +} + +EvJob * +ev_job_annots_new (EvDocument *document) +{ +	EvJob *job; + +	ev_debug_message (DEBUG_JOBS, NULL); + +	job = g_object_new (EV_TYPE_JOB_ANNOTS, NULL); +	job->document = g_object_ref (document); + +	return job; +} + +/* EvJobRender */ +static void +ev_job_render_init (EvJobRender *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +} + +static void +ev_job_render_dispose (GObject *object) +{ +	EvJobRender *job; + +	job = EV_JOB_RENDER (object); + +	ev_debug_message (DEBUG_JOBS, "page: %d (%p)", job->page, job); + +	if (job->surface) { +		cairo_surface_destroy (job->surface); +		job->surface = NULL; +	} + +	if (job->selection) { +		cairo_surface_destroy (job->selection); +		job->selection = NULL; +	} + +	if (job->selection_region) { +		cairo_region_destroy (job->selection_region); +		job->selection_region = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_render_parent_class)->dispose) (object); +} + +static gboolean +ev_job_render_run (EvJob *job) +{ +	EvJobRender     *job_render = EV_JOB_RENDER (job); +	EvPage          *ev_page; +	EvRenderContext *rc; + +	ev_debug_message (DEBUG_JOBS, "page: %d (%p)", job_render->page, job); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +	 +	ev_document_doc_mutex_lock (); + +	ev_profiler_start (EV_PROFILE_JOBS, "Rendering page %d", job_render->page); +		 +	ev_document_fc_mutex_lock (); + +	ev_page = ev_document_get_page (job->document, job_render->page); +	rc = ev_render_context_new (ev_page, job_render->rotation, job_render->scale); +	g_object_unref (ev_page); + +	job_render->surface = ev_document_render (job->document, rc); +	/* If job was cancelled during the page rendering, +	 * we return now, so that the thread is finished ASAP +	 */ +	if (g_cancellable_is_cancelled (job->cancellable)) { +		ev_document_fc_mutex_unlock (); +		ev_document_doc_mutex_unlock (); +		g_object_unref (rc); + +		return FALSE; +	} + +	if (job_render->include_selection && EV_IS_SELECTION (job->document)) { +		ev_selection_render_selection (EV_SELECTION (job->document), +					       rc, +					       &(job_render->selection), +					       &(job_render->selection_points), +					       NULL, +					       job_render->selection_style, +					       &(job_render->text), &(job_render->base)); +		job_render->selection_region = +			ev_selection_get_selection_region (EV_SELECTION (job->document), +							   rc, +							   job_render->selection_style, +							   &(job_render->selection_points)); +	} + +	g_object_unref (rc); + +	ev_document_fc_mutex_unlock (); +	ev_document_doc_mutex_unlock (); +	 +	ev_job_succeeded (job); +	 +	return FALSE; +} + +static void +ev_job_render_class_init (EvJobRenderClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_render_dispose; +	job_class->run = ev_job_render_run; +} + +EvJob * +ev_job_render_new (EvDocument   *document, +		   gint          page, +		   gint          rotation, +		   gdouble       scale, +		   gint          width, +		   gint          height) +{ +	EvJobRender *job; + +	ev_debug_message (DEBUG_JOBS, "page: %d", page); +	 +	job = g_object_new (EV_TYPE_JOB_RENDER, NULL); + +	EV_JOB (job)->document = g_object_ref (document); +	job->page = page; +	job->rotation = rotation; +	job->scale = scale; +	job->target_width = width; +	job->target_height = height; + +	return EV_JOB (job); +} + +void +ev_job_render_set_selection_info (EvJobRender     *job, +				  EvRectangle     *selection_points, +				  EvSelectionStyle selection_style, +				  GdkColor        *text, +				  GdkColor        *base) +{ +	job->include_selection = TRUE; + +	job->selection_points = *selection_points; +	job->selection_style = selection_style; +	job->text = *text; +	job->base = *base; +} + +/* EvJobPageData */ +static void +ev_job_page_data_init (EvJobPageData *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +} + +static gboolean +ev_job_page_data_run (EvJob *job) +{ +	EvJobPageData *job_pd = EV_JOB_PAGE_DATA (job); +	EvPage        *ev_page; + +	ev_debug_message (DEBUG_JOBS, "page: %d (%p)", job_pd->page, job); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); + +	ev_document_doc_mutex_lock (); +	ev_page = ev_document_get_page (job->document, job_pd->page); + +	if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_TEXT_MAPPING) && EV_IS_DOCUMENT_TEXT (job->document)) +		job_pd->text_mapping = +			ev_document_text_get_text_mapping (EV_DOCUMENT_TEXT (job->document), ev_page); +	if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_TEXT) && EV_IS_DOCUMENT_TEXT (job->document)) +		job_pd->text = +			ev_document_text_get_text (EV_DOCUMENT_TEXT (job->document), ev_page); +	if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_TEXT_LAYOUT) && EV_IS_DOCUMENT_TEXT (job->document)) +		ev_document_text_get_text_layout (EV_DOCUMENT_TEXT (job->document), +						  ev_page, +						  &(job_pd->text_layout), +						  &(job_pd->text_layout_length)); +	if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_LINKS) && EV_IS_DOCUMENT_LINKS (job->document)) +		job_pd->link_mapping = +			ev_document_links_get_links (EV_DOCUMENT_LINKS (job->document), ev_page); +	if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_FORMS) && EV_IS_DOCUMENT_FORMS (job->document)) +		job_pd->form_field_mapping = +			ev_document_forms_get_form_fields (EV_DOCUMENT_FORMS (job->document), +							   ev_page); +	if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_IMAGES) && EV_IS_DOCUMENT_IMAGES (job->document)) +		job_pd->image_mapping = +			ev_document_images_get_image_mapping (EV_DOCUMENT_IMAGES (job->document), +							      ev_page); +	if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_ANNOTS) && EV_IS_DOCUMENT_ANNOTATIONS (job->document)) +		job_pd->annot_mapping = +			ev_document_annotations_get_annotations (EV_DOCUMENT_ANNOTATIONS (job->document), +								 ev_page); +	g_object_unref (ev_page); +	ev_document_doc_mutex_unlock (); + +	ev_job_succeeded (job); + +	return FALSE; +} + +static void +ev_job_page_data_class_init (EvJobPageDataClass *class) +{ +	EvJobClass *job_class = EV_JOB_CLASS (class); + +	job_class->run = ev_job_page_data_run; +} + +EvJob * +ev_job_page_data_new (EvDocument        *document, +		      gint               page, +		      EvJobPageDataFlags flags) +{ +	EvJobPageData *job; + +	ev_debug_message (DEBUG_JOBS, "%d", page); + +	job = g_object_new (EV_TYPE_JOB_PAGE_DATA, NULL); + +	EV_JOB (job)->document = g_object_ref (document); +	job->page = page; +	job->flags = flags; + +	return EV_JOB (job); +} + +/* EvJobThumbnail */ +static void +ev_job_thumbnail_init (EvJobThumbnail *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +} + +static void +ev_job_thumbnail_dispose (GObject *object) +{ +	EvJobThumbnail *job; + +	job = EV_JOB_THUMBNAIL (object); + +	ev_debug_message (DEBUG_JOBS, "%d (%p)", job->page, job); +	 +	if (job->thumbnail) { +		g_object_unref (job->thumbnail); +		job->thumbnail = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_thumbnail_parent_class)->dispose) (object); +} + +static gboolean +ev_job_thumbnail_run (EvJob *job) +{ +	EvJobThumbnail  *job_thumb = EV_JOB_THUMBNAIL (job); +	EvRenderContext *rc; +	EvPage          *page; + +	ev_debug_message (DEBUG_JOBS, "%d (%p)", job_thumb->page, job); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +	 +	ev_document_doc_mutex_lock (); + +	page = ev_document_get_page (job->document, job_thumb->page); +	rc = ev_render_context_new (page, job_thumb->rotation, job_thumb->scale); +	g_object_unref (page); + +	job_thumb->thumbnail = ev_document_thumbnails_get_thumbnail (EV_DOCUMENT_THUMBNAILS (job->document), +								     rc, TRUE); +	g_object_unref (rc); +	ev_document_doc_mutex_unlock (); + +	ev_job_succeeded (job); +	 +	return FALSE; +} + +static void +ev_job_thumbnail_class_init (EvJobThumbnailClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_thumbnail_dispose; +	job_class->run = ev_job_thumbnail_run; +} + +EvJob * +ev_job_thumbnail_new (EvDocument *document, +		      gint        page, +		      gint        rotation, +		      gdouble     scale) +{ +	EvJobThumbnail *job; + +	ev_debug_message (DEBUG_JOBS, "%d", page); +	 +	job = g_object_new (EV_TYPE_JOB_THUMBNAIL, NULL); + +	EV_JOB (job)->document = g_object_ref (document); +	job->page = page; +	job->rotation = rotation; +	job->scale = scale; + +	return EV_JOB (job); +} + +/* EvJobFonts */ +static void +ev_job_fonts_init (EvJobFonts *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_MAIN_LOOP; +} + +static gboolean +ev_job_fonts_run (EvJob *job) +{ +	EvJobFonts      *job_fonts = EV_JOB_FONTS (job); +	EvDocumentFonts *fonts = EV_DOCUMENT_FONTS (job->document); + +	ev_debug_message (DEBUG_JOBS, NULL); +	 +	/* Do not block the main loop */ +	if (!ev_document_doc_mutex_trylock ()) +		return TRUE; +	 +	if (!ev_document_fc_mutex_trylock ()) +		return TRUE; + +#ifdef EV_ENABLE_DEBUG +	/* We use the #ifdef in this case because of the if */ +	if (ev_document_fonts_get_progress (fonts) == 0) +		ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +#endif + +	job_fonts->scan_completed = !ev_document_fonts_scan (fonts, 20); +	g_signal_emit (job_fonts, job_fonts_signals[FONTS_UPDATED], 0, +		       ev_document_fonts_get_progress (fonts)); + +	ev_document_fc_mutex_unlock (); +	ev_document_doc_mutex_unlock (); + +	if (job_fonts->scan_completed) +		ev_job_succeeded (job); +	 +	return !job_fonts->scan_completed; +} + +static void +ev_job_fonts_class_init (EvJobFontsClass *class) +{ +	EvJobClass *job_class = EV_JOB_CLASS (class); +	 +	job_class->run = ev_job_fonts_run; +	 +	job_fonts_signals[FONTS_UPDATED] = +		g_signal_new ("updated", +			      EV_TYPE_JOB_FONTS, +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvJobFontsClass, updated), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__DOUBLE, +			      G_TYPE_NONE, +			      1, G_TYPE_DOUBLE); +} + +EvJob * +ev_job_fonts_new (EvDocument *document) +{ +	EvJobFonts *job; + +	ev_debug_message (DEBUG_JOBS, NULL); +	 +	job = g_object_new (EV_TYPE_JOB_FONTS, NULL); + +	EV_JOB (job)->document = g_object_ref (document); + +	return EV_JOB (job); +} + +/* EvJobLoad */ +static void +ev_job_load_init (EvJobLoad *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +} + +static void +ev_job_load_dispose (GObject *object) +{ +	EvJobLoad *job = EV_JOB_LOAD (object); + +	ev_debug_message (DEBUG_JOBS, "%s", job->uri); +	 +	if (job->uri) { +		g_free (job->uri); +		job->uri = NULL; +	} + +	if (job->password) { +		g_free (job->password); +		job->password = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_load_parent_class)->dispose) (object); +} + +static gboolean +ev_job_load_run (EvJob *job) +{ +	EvJobLoad *job_load = EV_JOB_LOAD (job); +	GError    *error = NULL; +	 +	ev_debug_message (DEBUG_JOBS, "%s", job_load->uri); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +	 +	ev_document_fc_mutex_lock (); + +	/* This job may already have a document even if the job didn't complete +	   because, e.g., a password is required - if so, just reload rather than +	   creating a new instance */ +	if (job->document) { +		const gchar *uncompressed_uri; + +		if (job_load->password) { +			ev_document_security_set_password (EV_DOCUMENT_SECURITY (job->document), +							   job_load->password); +		} +		 +		job->failed = FALSE; +		job->finished = FALSE; +		g_clear_error (&job->error); + +		uncompressed_uri = g_object_get_data (G_OBJECT (job->document), +						      "uri-uncompressed"); +		ev_document_load (job->document, +				  uncompressed_uri ? uncompressed_uri : job_load->uri, +				  &error); +	} else { +		job->document = ev_document_factory_get_document (job_load->uri, +								  &error); +	} + +	ev_document_fc_mutex_unlock (); + +	if (error) { +		ev_job_failed_from_error (job, error); +		g_error_free (error); +	} else { +		ev_job_succeeded (job); +	} + +	return FALSE; +} + +static void +ev_job_load_class_init (EvJobLoadClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_load_dispose; +	job_class->run = ev_job_load_run; +} + +EvJob * +ev_job_load_new (const gchar *uri) +{ +	EvJobLoad *job; + +	ev_debug_message (DEBUG_JOBS, "%s", uri); +	 +	job = g_object_new (EV_TYPE_JOB_LOAD, NULL); +	job->uri = g_strdup (uri); + +	return EV_JOB (job); +} + +void +ev_job_load_set_uri (EvJobLoad *job, const gchar *uri) +{ +	ev_debug_message (DEBUG_JOBS, "%s", uri); +	 +	if (job->uri) +		g_free (job->uri); +	job->uri = g_strdup (uri); +} + +void +ev_job_load_set_password (EvJobLoad *job, const gchar *password) +{ +	ev_debug_message (DEBUG_JOBS, NULL); + +	if (job->password) +		g_free (job->password); +	job->password = password ? g_strdup (password) : NULL; +} + +/* EvJobSave */ +static void +ev_job_save_init (EvJobSave *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +} + +static void +ev_job_save_dispose (GObject *object) +{ +	EvJobSave *job = EV_JOB_SAVE (object); + +	ev_debug_message (DEBUG_JOBS, "%s", job->uri); +	 +	if (job->uri) { +		g_free (job->uri); +		job->uri = NULL; +	} + +	if (job->document_uri) { +		g_free (job->document_uri); +		job->document_uri = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_save_parent_class)->dispose) (object); +} + +static gboolean +ev_job_save_run (EvJob *job) +{ +	EvJobSave *job_save = EV_JOB_SAVE (job); +	gint       fd; +	gchar     *tmp_filename = NULL; +	gchar     *local_uri; +	GError    *error = NULL; +	 +	ev_debug_message (DEBUG_JOBS, "uri: %s, document_uri: %s", job_save->uri, job_save->document_uri); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); + +        fd = ev_mkstemp ("saveacopy.XXXXXX", &tmp_filename, &error); +        if (fd == -1) { +                ev_job_failed_from_error (job, error); +                g_error_free (error); + +		return FALSE; +	} + +	ev_document_doc_mutex_lock (); + +	/* Save document to temp filename */ +	local_uri = g_filename_to_uri (tmp_filename, NULL, &error); +        if (local_uri != NULL) { +                ev_document_save (job->document, local_uri, &error); +        } + +	close (fd); + +	ev_document_doc_mutex_unlock (); + +	if (error) { +		g_free (local_uri); +		ev_job_failed_from_error (job, error); +		g_error_free (error); +		 +		return FALSE; +	} + +	/* If original document was compressed, +	 * compress it again before saving +	 */ +	if (g_object_get_data (G_OBJECT (job->document), "uri-uncompressed")) { +		EvCompressionType ctype = EV_COMPRESSION_NONE; +		const gchar      *ext; +		gchar            *uri_comp; +		 +		ext = g_strrstr (job_save->document_uri, ".gz"); +		if (ext && g_ascii_strcasecmp (ext, ".gz") == 0) +			ctype = EV_COMPRESSION_GZIP; +		 +		ext = g_strrstr (job_save->document_uri, ".bz2"); +		if (ext && g_ascii_strcasecmp (ext, ".bz2") == 0) +			ctype = EV_COMPRESSION_BZIP2; + +		uri_comp = ev_file_compress (local_uri, ctype, &error); +		g_free (local_uri); +		g_unlink (tmp_filename); + +		if (!uri_comp || error) { +			local_uri = NULL; +		} else { +			local_uri = uri_comp; +		} +	} + +	g_free (tmp_filename); + +	if (error) { +		g_free (local_uri); +		ev_job_failed_from_error (job, error); +		g_error_free (error); +		 +		return FALSE; +	} + +	if (!local_uri) +		return FALSE; + +	ev_xfer_uri_simple (local_uri, job_save->uri, &error); +	ev_tmp_uri_unlink (local_uri); + +	if (error) { +		ev_job_failed_from_error (job, error); +		g_error_free (error); +	} else { +		ev_job_succeeded (job); +	} +	 +	return FALSE; +} + +static void +ev_job_save_class_init (EvJobSaveClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_save_dispose; +	job_class->run = ev_job_save_run; +} + +EvJob * +ev_job_save_new (EvDocument  *document, +		 const gchar *uri, +		 const gchar *document_uri) +{ +	EvJobSave *job; + +	ev_debug_message (DEBUG_JOBS, "uri: %s, document_uri: %s", uri, document_uri); + +	job = g_object_new (EV_TYPE_JOB_SAVE, NULL); + +	EV_JOB (job)->document = g_object_ref (document); +	job->uri = g_strdup (uri); +	job->document_uri = g_strdup (document_uri); + +	return EV_JOB (job); +} + +/* EvJobFind */ +static void +ev_job_find_init (EvJobFind *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_MAIN_LOOP; +} + +static void +ev_job_find_dispose (GObject *object) +{ +	EvJobFind *job = EV_JOB_FIND (object); + +	ev_debug_message (DEBUG_JOBS, NULL); + +	if (job->text) { +		g_free (job->text); +		job->text = NULL; +	} + +	if (job->pages) { +		gint i; + +		for (i = 0; i < job->n_pages; i++) { +			g_list_foreach (job->pages[i], (GFunc)ev_rectangle_free, NULL); +			g_list_free (job->pages[i]); +		} + +		g_free (job->pages); +		job->pages = NULL; +	} +	 +	(* G_OBJECT_CLASS (ev_job_find_parent_class)->dispose) (object); +} + +static gboolean +ev_job_find_run (EvJob *job) +{ +	EvJobFind      *job_find = EV_JOB_FIND (job); +	EvDocumentFind *find = EV_DOCUMENT_FIND (job->document); +	EvPage         *ev_page; +	GList          *matches; + +	ev_debug_message (DEBUG_JOBS, NULL); +	 +	/* Do not block the main loop */ +	if (!ev_document_doc_mutex_trylock ()) +		return TRUE; +	 +#ifdef EV_ENABLE_DEBUG +	/* We use the #ifdef in this case because of the if */ +	if (job_find->current_page == job_find->start_page) +		ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +#endif + +	ev_page = ev_document_get_page (job->document, job_find->current_page); +	matches = ev_document_find_find_text (find, ev_page, job_find->text, +					      job_find->case_sensitive); +	g_object_unref (ev_page); +	 +	ev_document_doc_mutex_unlock (); + +	if (!job_find->has_results) +		job_find->has_results = (matches != NULL); + +	job_find->pages[job_find->current_page] = matches; +	g_signal_emit (job_find, job_find_signals[FIND_UPDATED], 0, job_find->current_page); +		        +	job_find->current_page = (job_find->current_page + 1) % job_find->n_pages; +	if (job_find->current_page == job_find->start_page) { +		ev_job_succeeded (job); + +		return FALSE; +	} + +	return TRUE; +} + +static void +ev_job_find_class_init (EvJobFindClass *class) +{ +	EvJobClass   *job_class = EV_JOB_CLASS (class); +	GObjectClass *gobject_class = G_OBJECT_CLASS (class); +	 +	job_class->run = ev_job_find_run; +	gobject_class->dispose = ev_job_find_dispose; +	 +	job_find_signals[FIND_UPDATED] = +		g_signal_new ("updated", +			      EV_TYPE_JOB_FIND, +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvJobFindClass, updated), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__INT, +			      G_TYPE_NONE, +			      1, G_TYPE_INT); +} + +EvJob * +ev_job_find_new (EvDocument  *document, +		 gint         start_page, +		 gint         n_pages, +		 const gchar *text, +		 gboolean     case_sensitive) +{ +	EvJobFind *job; +	 +	ev_debug_message (DEBUG_JOBS, NULL); +	 +	job = g_object_new (EV_TYPE_JOB_FIND, NULL); + +	EV_JOB (job)->document = g_object_ref (document); +	job->start_page = start_page; +	job->current_page = start_page; +	job->n_pages = n_pages; +	job->pages = g_new0 (GList *, n_pages); +	job->text = g_strdup (text); +	job->case_sensitive = case_sensitive; +	job->has_results = FALSE; + +	return EV_JOB (job); +} + +gint +ev_job_find_get_n_results (EvJobFind *job, +			   gint       page) +{ +	return g_list_length (job->pages[page]); +} + +gdouble +ev_job_find_get_progress (EvJobFind *job) +{ +	gint pages_done; + +	if (ev_job_is_finished (EV_JOB (job))) +		return 1.0; +	 +	if (job->current_page > job->start_page) { +		pages_done = job->current_page - job->start_page + 1; +	} else if (job->current_page == job->start_page) { +		pages_done = job->n_pages; +	} else { +		pages_done = job->n_pages - job->start_page + job->current_page; +	} + +	return pages_done / (gdouble) job->n_pages; +} + +gboolean +ev_job_find_has_results (EvJobFind *job) +{ +	return job->has_results; +} + +GList ** +ev_job_find_get_results (EvJobFind *job) +{ +	return job->pages; +} + +/* EvJobLayers */ +static void +ev_job_layers_init (EvJobLayers *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +} + +static void +ev_job_layers_dispose (GObject *object) +{ +	EvJobLayers *job; + +	ev_debug_message (DEBUG_JOBS, NULL); +	 +	job = EV_JOB_LAYERS (object); + +	if (job->model) { +		g_object_unref (job->model); +		job->model = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_layers_parent_class)->dispose) (object); +} + +static gboolean +ev_job_layers_run (EvJob *job) +{ +	EvJobLayers *job_layers = EV_JOB_LAYERS (job); + +	ev_debug_message (DEBUG_JOBS, NULL); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +	 +	ev_document_doc_mutex_lock (); +	job_layers->model = ev_document_layers_get_layers (EV_DOCUMENT_LAYERS (job->document)); +	ev_document_doc_mutex_unlock (); +	 +	ev_job_succeeded (job); +	 +	return FALSE; +} + +static void +ev_job_layers_class_init (EvJobLayersClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_layers_dispose; +	job_class->run = ev_job_layers_run; +} + +EvJob * +ev_job_layers_new (EvDocument *document) +{ +	EvJob *job; + +	ev_debug_message (DEBUG_JOBS, NULL); + +	job = g_object_new (EV_TYPE_JOB_LAYERS, NULL); +	job->document = g_object_ref (document); +	 +	return job; +} + +/* EvJobExport */ +static void +ev_job_export_init (EvJobExport *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +	job->page = -1; +} + +static void +ev_job_export_dispose (GObject *object) +{ +	EvJobExport *job; + +	ev_debug_message (DEBUG_JOBS, NULL); +	 +	job = EV_JOB_EXPORT (object); + +	if (job->rc) { +		g_object_unref (job->rc); +		job->rc = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_export_parent_class)->dispose) (object); +} + +static gboolean +ev_job_export_run (EvJob *job) +{ +	EvJobExport *job_export = EV_JOB_EXPORT (job); +	EvPage      *ev_page; + +	g_assert (job_export->page != -1); + +	ev_debug_message (DEBUG_JOBS, NULL); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); +	 +	ev_document_doc_mutex_lock (); +	 +	ev_page = ev_document_get_page (job->document, job_export->page); +	if (job_export->rc) { +		job->failed = FALSE; +		job->finished = FALSE; +		g_clear_error (&job->error); +		 +		ev_render_context_set_page (job_export->rc, ev_page); +	} else { +		job_export->rc = ev_render_context_new (ev_page, 0, 1.0); +	} +	g_object_unref (ev_page); +	 +	ev_file_exporter_do_page (EV_FILE_EXPORTER (job->document), job_export->rc); +	 +	ev_document_doc_mutex_unlock (); +	 +	ev_job_succeeded (job); +	 +	return FALSE; +} + +static void +ev_job_export_class_init (EvJobExportClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_export_dispose; +	job_class->run = ev_job_export_run; +} + +EvJob * +ev_job_export_new (EvDocument *document) +{ +	EvJob *job; + +	ev_debug_message (DEBUG_JOBS, NULL); + +	job = g_object_new (EV_TYPE_JOB_EXPORT, NULL); +	job->document = g_object_ref (document); +	 +	return job; +} + +void +ev_job_export_set_page (EvJobExport *job, +			gint         page) +{ +	job->page = page; +} + +/* EvJobPrint */ +static void +ev_job_print_init (EvJobPrint *job) +{ +	EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD; +	job->page = -1; +} + +static void +ev_job_print_dispose (GObject *object) +{ +	EvJobPrint *job; + +	ev_debug_message (DEBUG_JOBS, NULL); + +	job = EV_JOB_PRINT (object); + +	if (job->cr) { +		cairo_destroy (job->cr); +		job->cr = NULL; +	} + +	(* G_OBJECT_CLASS (ev_job_print_parent_class)->dispose) (object); +} + +static gboolean +ev_job_print_run (EvJob *job) +{ +	EvJobPrint     *job_print = EV_JOB_PRINT (job); +	EvPage         *ev_page; +	cairo_status_t  cr_status; + +	g_assert (job_print->page != -1); +	g_assert (job_print->cr != NULL); + +	ev_debug_message (DEBUG_JOBS, NULL); +	ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job); + +	job->failed = FALSE; +	job->finished = FALSE; +	g_clear_error (&job->error); + +	ev_document_doc_mutex_lock (); + +	ev_page = ev_document_get_page (job->document, job_print->page); +	ev_document_print_print_page (EV_DOCUMENT_PRINT (job->document), +				      ev_page, job_print->cr); +	g_object_unref (ev_page); + +	ev_document_doc_mutex_unlock (); + +	cr_status = cairo_status (job_print->cr); +	if (cr_status == CAIRO_STATUS_SUCCESS) { +		ev_job_succeeded (job); +	} else { +		ev_job_failed (job, +			       GTK_PRINT_ERROR, +			       GTK_PRINT_ERROR_GENERAL, +			       _("Failed to print page %d: %s"), +			       job_print->page, +			       cairo_status_to_string (cr_status)); +	} + +	return FALSE; +} + +static void +ev_job_print_class_init (EvJobPrintClass *class) +{ +	GObjectClass *oclass = G_OBJECT_CLASS (class); +	EvJobClass   *job_class = EV_JOB_CLASS (class); + +	oclass->dispose = ev_job_print_dispose; +	job_class->run = ev_job_print_run; +} + +EvJob * +ev_job_print_new (EvDocument *document) +{ +	EvJob *job; + +	ev_debug_message (DEBUG_JOBS, NULL); + +	job = g_object_new (EV_TYPE_JOB_PRINT, NULL); +	job->document = g_object_ref (document); + +	return job; +} + +void +ev_job_print_set_page (EvJobPrint *job, +		       gint        page) +{ +	job->page = page; +} + +void +ev_job_print_set_cairo (EvJobPrint *job, +			cairo_t    *cr) +{ +	if (job->cr == cr) +		return; + +	if (job->cr) +		cairo_destroy (job->cr); +	job->cr = cr ? cairo_reference (cr) : NULL; +} diff --git a/libview/ev-jobs.h b/libview/ev-jobs.h new file mode 100644 index 00000000..14b47f78 --- /dev/null +++ b/libview/ev-jobs.h @@ -0,0 +1,502 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2008 Carlos Garcia Campos <[email protected]> + *  Copyright (C) 2005 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef __EV_JOBS_H__ +#define __EV_JOBS_H__ + +#include <gio/gio.h> +#include <gtk/gtk.h> +#include <cairo.h> + +#include <evince-document.h> + +G_BEGIN_DECLS + +typedef struct _EvJob EvJob; +typedef struct _EvJobClass EvJobClass; + +typedef struct _EvJobRender EvJobRender; +typedef struct _EvJobRenderClass EvJobRenderClass; + +typedef struct _EvJobPageData EvJobPageData; +typedef struct _EvJobPageDataClass EvJobPageDataClass; + +typedef struct _EvJobThumbnail EvJobThumbnail; +typedef struct _EvJobThumbnailClass EvJobThumbnailClass; + +typedef struct _EvJobLinks EvJobLinks; +typedef struct _EvJobLinksClass EvJobLinksClass; + +typedef struct _EvJobAttachments EvJobAttachments; +typedef struct _EvJobAttachmentsClass EvJobAttachmentsClass; + +typedef struct _EvJobAnnots EvJobAnnots; +typedef struct _EvJobAnnotsClass EvJobAnnotsClass; + +typedef struct _EvJobFonts EvJobFonts; +typedef struct _EvJobFontsClass EvJobFontsClass; + +typedef struct _EvJobLoad EvJobLoad; +typedef struct _EvJobLoadClass EvJobLoadClass; + +typedef struct _EvJobSave EvJobSave; +typedef struct _EvJobSaveClass EvJobSaveClass; + +typedef struct _EvJobFind EvJobFind; +typedef struct _EvJobFindClass EvJobFindClass; + +typedef struct _EvJobLayers EvJobLayers; +typedef struct _EvJobLayersClass EvJobLayersClass; + +typedef struct _EvJobExport EvJobExport; +typedef struct _EvJobExportClass EvJobExportClass; + +typedef struct _EvJobPrint EvJobPrint; +typedef struct _EvJobPrintClass EvJobPrintClass; + +#define EV_TYPE_JOB		     	     (ev_job_get_type()) +#define EV_JOB(object)		             (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB, EvJob)) +#define EV_JOB_CLASS(klass)	             (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB, EvJobClass)) +#define EV_IS_JOB(object)		     (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB)) +#define EV_JOB_GET_CLASS(object)             (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_JOB, EvJobClass)) + +#define EV_TYPE_JOB_LINKS		     (ev_job_links_get_type()) +#define EV_JOB_LINKS(object)		     (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_LINKS, EvJobLinks)) +#define EV_JOB_LINKS_CLASS(klass)	     (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_LINKS, EvJobLinksClass)) +#define EV_IS_JOB_LINKS(object)		     (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_LINKS)) + +#define EV_TYPE_JOB_ATTACHMENTS		     (ev_job_attachments_get_type()) +#define EV_JOB_ATTACHMENTS(object)	     (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_ATTACHMENTS, EvJobAttachments)) +#define EV_JOB_ATTACHMENTS_CLASS(klass)	     (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_ATTACHMENTS, EvJobAttachmentsClass)) +#define EV_IS_JOB_ATTACHMENTS(object)	     (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_ATTACHMENTS)) + +#define EV_TYPE_JOB_ANNOTS                   (ev_job_annots_get_type()) +#define EV_JOB_ANNOTS(object)                (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_ANNOTS, EvJobAnnots)) +#define EV_JOB_ANNOTS_CLASS(klass)           (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_ANNOTS, EvJobAnnotsClass)) +#define EV_IS_JOB_ANNOTS(object)             (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_ANNOTS)) + +#define EV_TYPE_JOB_RENDER		     (ev_job_render_get_type()) +#define EV_JOB_RENDER(object)		     (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_RENDER, EvJobRender)) +#define EV_JOB_RENDER_CLASS(klass)	     (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_RENDER, EvJobRenderClass)) +#define EV_IS_JOB_RENDER(object)	     (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_RENDER)) + +#define EV_TYPE_JOB_PAGE_DATA		     (ev_job_page_data_get_type()) +#define EV_JOB_PAGE_DATA(object)	     (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_PAGE_DATA, EvJobPageData)) +#define EV_JOB_PAGE_DATA_CLASS(klass)	     (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_PAGE_DATA, EvJobPageDataClass)) +#define EV_IS_JOB_PAGE_DATA(object)	     (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_PAGE_DATA)) + +#define EV_TYPE_JOB_THUMBNAIL		     (ev_job_thumbnail_get_type()) +#define EV_JOB_THUMBNAIL(object)	     (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_THUMBNAIL, EvJobThumbnail)) +#define EV_JOB_THUMBNAIL_CLASS(klass)	     (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_THUMBNAIL, EvJobThumbnailClass)) +#define EV_IS_JOB_THUMBNAIL(object)	     (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_THUMBNAIL)) + +#define EV_TYPE_JOB_FONTS		     (ev_job_fonts_get_type()) +#define EV_JOB_FONTS(object)	     	     (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_FONTS, EvJobFonts)) +#define EV_JOB_FONTS_CLASS(klass)	     (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_FONTS, EvJobFontsClass)) +#define EV_IS_JOB_FONTS(object)		     (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_FONTS)) + +#define EV_TYPE_JOB_LOAD		     (ev_job_load_get_type()) +#define EV_JOB_LOAD(object)	     	     (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_LOAD, EvJobLoad)) +#define EV_JOB_LOAD_CLASS(klass)	     (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_LOAD, EvJobLoadClass)) +#define EV_IS_JOB_LOAD(object)		     (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_LOAD)) + +#define EV_TYPE_JOB_SAVE		     (ev_job_save_get_type()) +#define EV_JOB_SAVE(object)	     	     (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_SAVE, EvJobSave)) +#define EV_JOB_SAVE_CLASS(klass)	     (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_SAVE, EvJobSaveClass)) +#define EV_IS_JOB_SAVE(object)		     (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_SAVE)) + +#define EV_TYPE_JOB_FIND                     (ev_job_find_get_type()) +#define EV_JOB_FIND(object)                  (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_FIND, EvJobFind)) +#define EV_JOB_FIND_CLASS(klass)             (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_FIND, EvJobFindClass)) +#define EV_IS_JOB_FIND(object)               (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_FIND)) + +#define EV_TYPE_JOB_LAYERS                   (ev_job_layers_get_type()) +#define EV_JOB_LAYERS(object)                (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_LAYERS, EvJobLayers)) +#define EV_JOB_LAYERS_CLASS(klass)           (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_LAYERS, EvJobLayersClass)) +#define EV_IS_JOB_LAYERS(object)             (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_LAYERS)) + +#define EV_TYPE_JOB_EXPORT                    (ev_job_export_get_type()) +#define EV_JOB_EXPORT(object)                 (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_EXPORT, EvJobExport)) +#define EV_JOB_EXPORT_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_EXPORT, EvJobExportClass)) +#define EV_IS_JOB_EXPORT(object)              (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_EXPORT)) + +#define EV_TYPE_JOB_PRINT                    (ev_job_print_get_type()) +#define EV_JOB_PRINT(object)                 (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_PRINT, EvJobPrint)) +#define EV_JOB_PRINT_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_PRINT, EvJobPrintClass)) +#define EV_IS_JOB_PRINT(object)              (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_PRINT)) + +typedef enum { +	EV_JOB_RUN_THREAD, +	EV_JOB_RUN_MAIN_LOOP +} EvJobRunMode; + +struct _EvJob +{ +	GObject parent; +	 +	EvDocument *document; + +	EvJobRunMode run_mode; + +	guint cancelled : 1; +	guint finished : 1; +	guint failed : 1; +	 +	GError *error; +	GCancellable *cancellable; + +	guint idle_finished_id; +	guint idle_cancelled_id; +}; + +struct _EvJobClass +{ +	GObjectClass parent_class; + +	gboolean (*run)         (EvJob *job); +	 +	/* Signals */ +	void     (* cancelled)  (EvJob *job); +	void     (* finished)   (EvJob *job); +}; + +struct _EvJobLinks +{ +	EvJob parent; + +	GtkTreeModel *model; +}; + +struct _EvJobLinksClass +{ +	EvJobClass parent_class; +}; + +struct _EvJobAttachments +{ +	EvJob parent; + +	GList *attachments; +}; + +struct _EvJobAttachmentsClass +{ +	EvJobClass parent_class; +}; + +struct _EvJobAnnots +{ +	EvJob parent; + +	GList *annots; +}; + +struct _EvJobAnnotsClass +{ +	EvJobClass parent_class; +}; + +struct _EvJobRender +{ +	EvJob parent; + +	gint page; +	gint rotation; +	gdouble scale; + +	gboolean page_ready; +	gint target_width; +	gint target_height; +	cairo_surface_t *surface; + +	gboolean include_selection; +	cairo_surface_t *selection; +	cairo_region_t *selection_region; +	EvRectangle selection_points; +	EvSelectionStyle selection_style; +	GdkColor base; +	GdkColor text; +}; + +struct _EvJobRenderClass +{ +	EvJobClass parent_class; +}; + +typedef enum { +	EV_PAGE_DATA_INCLUDE_NONE         = 0, +	EV_PAGE_DATA_INCLUDE_LINKS        = 1 << 0, +	EV_PAGE_DATA_INCLUDE_TEXT         = 1 << 1, +	EV_PAGE_DATA_INCLUDE_TEXT_MAPPING = 1 << 2, +	EV_PAGE_DATA_INCLUDE_TEXT_LAYOUT  = 1 << 3, +	EV_PAGE_DATA_INCLUDE_IMAGES       = 1 << 4, +	EV_PAGE_DATA_INCLUDE_FORMS        = 1 << 5, +	EV_PAGE_DATA_INCLUDE_ANNOTS       = 1 << 6, +	EV_PAGE_DATA_INCLUDE_ALL          = (1 << 7) - 1 +} EvJobPageDataFlags; + +struct _EvJobPageData +{ +	EvJob parent; + +	gint page; +	EvJobPageDataFlags flags; + +	EvMappingList  *link_mapping; +	EvMappingList  *image_mapping; +	EvMappingList  *form_field_mapping; +	EvMappingList  *annot_mapping; +	cairo_region_t *text_mapping; +	gchar *text; +	EvRectangle *text_layout; +	guint text_layout_length; +}; + +struct _EvJobPageDataClass +{ +	EvJobClass parent_class; +}; + +struct _EvJobThumbnail +{ +	EvJob parent; + +	gint page; +	gint rotation; +	gdouble scale; +	 +	GdkPixbuf *thumbnail; +}; + +struct _EvJobThumbnailClass +{ +	EvJobClass parent_class; +}; + +struct _EvJobFonts +{ +	EvJob parent; +	gboolean scan_completed; +}; + +struct _EvJobFontsClass +{ +        EvJobClass parent_class; + +	/* Signals */ +	void (* updated)  (EvJobFonts *job, +			   gdouble     progress); +}; + +struct _EvJobLoad +{ +	EvJob parent; + +	gchar *uri; +	gchar *password; +}; + +struct _EvJobLoadClass +{ +	EvJobClass parent_class; +}; + +struct _EvJobSave +{ +	EvJob parent; + +	gchar *uri; +	gchar *document_uri; +}; + +struct _EvJobSaveClass +{ +	EvJobClass parent_class; +}; + +struct _EvJobFind +{ +	EvJob parent; + +	gint start_page; +	gint current_page; +	gint n_pages; +	GList **pages; +	gchar *text; +	gboolean case_sensitive; +	gboolean has_results; +}; + +struct _EvJobFindClass +{ +	EvJobClass parent_class; + +	/* Signals */ +	void (* updated)  (EvJobFind *job, +			   gint       page); +}; + +struct _EvJobLayers +{ +	EvJob parent; + +	GtkTreeModel *model; +}; + +struct _EvJobLayersClass +{ +	EvJobClass parent_class; +}; + +struct _EvJobExport +{ +	EvJob parent; + +	gint page; +	EvRenderContext *rc; +}; + +struct _EvJobExportClass +{ +	EvJobClass parent_class; +}; + +struct _EvJobPrint +{ +	EvJob parent; + +	gint page; +	cairo_t *cr; +}; + +struct _EvJobPrintClass +{ +	EvJobClass parent_class; +}; + +/* Base job class */ +GType           ev_job_get_type           (void) G_GNUC_CONST; +gboolean        ev_job_run                (EvJob          *job); +void            ev_job_cancel             (EvJob          *job); +void            ev_job_failed             (EvJob          *job, +					   GQuark          domain, +					   gint            code, +					   const gchar    *format, +					   ...); +void            ev_job_failed_from_error  (EvJob          *job, +					   GError         *error); +void            ev_job_succeeded          (EvJob          *job); +gboolean        ev_job_is_finished        (EvJob          *job); +gboolean        ev_job_is_failed          (EvJob          *job); +EvJobRunMode    ev_job_get_run_mode       (EvJob          *job); +void            ev_job_set_run_mode       (EvJob          *job, +					   EvJobRunMode    run_mode); + +/* EvJobLinks */ +GType           ev_job_links_get_type     (void) G_GNUC_CONST; +EvJob          *ev_job_links_new          (EvDocument     *document); + +/* EvJobAttachments */ +GType           ev_job_attachments_get_type (void) G_GNUC_CONST; +EvJob          *ev_job_attachments_new      (EvDocument     *document); + +/* EvJobAnnots */ +GType           ev_job_annots_get_type      (void) G_GNUC_CONST; +EvJob          *ev_job_annots_new           (EvDocument     *document); + +/* EvJobRender */ +GType           ev_job_render_get_type    (void) G_GNUC_CONST; +EvJob          *ev_job_render_new         (EvDocument      *document, +					   gint             page, +					   gint             rotation, +					   gdouble          scale, +					   gint             width, +					   gint             height); +void     ev_job_render_set_selection_info (EvJobRender     *job, +					   EvRectangle     *selection_points, +					   EvSelectionStyle selection_style, +					   GdkColor        *text, +					   GdkColor        *base); +/* EvJobPageData */ +GType           ev_job_page_data_get_type (void) G_GNUC_CONST; +EvJob          *ev_job_page_data_new      (EvDocument      *document, +					   gint             page, +					   EvJobPageDataFlags flags); + +/* EvJobThumbnail */ +GType           ev_job_thumbnail_get_type (void) G_GNUC_CONST; +EvJob          *ev_job_thumbnail_new      (EvDocument      *document, +					   gint             page, +					   gint             rotation, +					   gdouble          scale); +/* EvJobFonts */ +GType 		ev_job_fonts_get_type 	  (void) G_GNUC_CONST; +EvJob 	       *ev_job_fonts_new 	  (EvDocument      *document); + +/* EvJobLoad */ +GType 		ev_job_load_get_type 	  (void) G_GNUC_CONST; +EvJob 	       *ev_job_load_new 	  (const gchar 	   *uri); +void            ev_job_load_set_uri       (EvJobLoad       *load, +					   const gchar     *uri); +void            ev_job_load_set_password  (EvJobLoad       *job, +					   const gchar     *password); + +/* EvJobSave */ +GType           ev_job_save_get_type      (void) G_GNUC_CONST; +EvJob          *ev_job_save_new           (EvDocument      *document, +					   const gchar     *uri, +					   const gchar     *document_uri); +/* EvJobFind */ +GType           ev_job_find_get_type      (void) G_GNUC_CONST; +EvJob          *ev_job_find_new           (EvDocument      *document, +					   gint             start_page, +					   gint             n_pages, +					   const gchar     *text, +					   gboolean         case_sensitive); +gint            ev_job_find_get_n_results (EvJobFind       *job, +					   gint             pages); +gdouble         ev_job_find_get_progress  (EvJobFind       *job); +gboolean        ev_job_find_has_results   (EvJobFind       *job); +GList         **ev_job_find_get_results   (EvJobFind       *job); + +/* EvJobLayers */ +GType           ev_job_layers_get_type    (void) G_GNUC_CONST; +EvJob          *ev_job_layers_new         (EvDocument     *document); + +/* EvJobExport */ +GType           ev_job_export_get_type    (void) G_GNUC_CONST; +EvJob          *ev_job_export_new         (EvDocument     *document); +void            ev_job_export_set_page    (EvJobExport    *job, +					   gint            page); +/* EvJobPrint */ +GType           ev_job_print_get_type    (void) G_GNUC_CONST; +EvJob          *ev_job_print_new         (EvDocument     *document); +void            ev_job_print_set_page    (EvJobPrint     *job, +					  gint            page); +void            ev_job_print_set_cairo   (EvJobPrint     *job, +					  cairo_t        *cr); + +G_END_DECLS + +#endif /* __EV_JOBS_H__ */ diff --git a/libview/ev-loading-window.c b/libview/ev-loading-window.c new file mode 100644 index 00000000..e6352fe9 --- /dev/null +++ b/libview/ev-loading-window.c @@ -0,0 +1,278 @@ +/* ev-loading-window.c + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2010 Carlos Garcia Campos <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "config.h" + +#include <string.h> +#include <glib/gi18n.h> +#include "ev-loading-window.h" + +enum { +	PROP_0, +	PROP_PARENT +}; + +struct _EvLoadingWindow { +	GtkWindow  base_instance; + +	GtkWindow *parent; + +	gint       x; +	gint       y; +	gint       width; +	gint       height; +}; + +struct _EvLoadingWindowClass { +	GtkWindowClass base_class; +}; + +G_DEFINE_TYPE (EvLoadingWindow, ev_loading_window, GTK_TYPE_WINDOW) + +static void +ev_loading_window_set_property (GObject      *object, +				guint         prop_id, +				const GValue *value, +				GParamSpec   *pspec) +{ +	EvLoadingWindow *window = EV_LOADING_WINDOW (object); + +	switch (prop_id) { +	case PROP_PARENT: +		window->parent = g_value_get_object (value); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static void +ev_loading_window_init (EvLoadingWindow *window) +{ +	GtkWindow   *gtk_window = GTK_WINDOW (window); +	GtkWidget   *widget = GTK_WIDGET (window); +	GtkWidget   *hbox; +	GtkWidget   *spinner; +	GtkWidget   *label; +	GtkStyle    *style; +	GdkColor    fg, bg; +	const gchar *loading_text = _("Loadingā¦"); +	const gchar *fg_color_name = "info_fg_color"; +	const gchar *bg_color_name = "info_bg_color"; + +	hbox = gtk_hbox_new (FALSE, 12); + +	spinner = gtk_spinner_new (); +	gtk_spinner_start (GTK_SPINNER (spinner)); +	gtk_box_pack_start (GTK_BOX (hbox), spinner, FALSE, FALSE, 0); +	gtk_widget_show (spinner); + +	label = gtk_label_new (loading_text); +	gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0); +	gtk_widget_show (label); + +	gtk_container_add (GTK_CONTAINER (window), hbox); +	gtk_widget_show (hbox); + +	gtk_widget_set_app_paintable (widget, TRUE); + +	gtk_container_set_border_width (GTK_CONTAINER (window), 10); + +	gtk_window_set_type_hint (gtk_window, GDK_WINDOW_TYPE_HINT_NOTIFICATION); +	gtk_window_set_accept_focus (gtk_window, FALSE); +	gtk_window_set_decorated (gtk_window, FALSE); +	gtk_window_set_resizable (gtk_window, FALSE); + +	style = gtk_widget_get_style (widget); +	if (!gtk_style_lookup_color (style, fg_color_name, &fg) || +	    !gtk_style_lookup_color (style, bg_color_name, &bg)) { +		fg.pixel = 0; +		fg.red = 0xb800; +		fg.green = 0xad00; +		fg.blue = 0x9d00; + +		bg.pixel = 0; +		bg.red = 0xff00; +		bg.green = 0xff00; +		bg.blue = 0xbf00; +	} + +	if (!gdk_color_equal (&bg, &style->bg[GTK_STATE_NORMAL])) +		gtk_widget_modify_bg (widget, GTK_STATE_NORMAL, &bg); +	if (!gdk_color_equal (&fg, &style->fg[GTK_STATE_NORMAL])) +		gtk_widget_modify_fg (widget, GTK_STATE_NORMAL, &fg); +} + +static GObject * +ev_loading_window_constructor (GType                  type, +			       guint                  n_construct_properties, +			       GObjectConstructParam *construct_params) +{ +	GObject         *object; +	EvLoadingWindow *window; +	GtkWindow       *gtk_window; + +	object = G_OBJECT_CLASS (ev_loading_window_parent_class)->constructor (type, +									       n_construct_properties, +									       construct_params); +	window = EV_LOADING_WINDOW (object); +	gtk_window = GTK_WINDOW (window); + +	gtk_window_set_transient_for (gtk_window, window->parent); +	gtk_window_set_destroy_with_parent (gtk_window, TRUE); + +	return object; +} + +static void +_cairo_rounded_rectangle (cairo_t *cr, +			  gint     width, +			  gint     height, +			  gdouble  radius) +{ +	cairo_move_to (cr, radius, 0); +	cairo_line_to (cr, width - radius, 0); +	cairo_curve_to (cr, +			width, 0, +			width, 0, +			width, +			radius); +	cairo_line_to (cr, width, height - radius); +	cairo_curve_to (cr, +			width,height, +			width, height, +			width - radius, +			height); +	cairo_line_to (cr, radius, height); +	cairo_curve_to (cr, +			0, height, +			0, height, +			0, height - radius); +	cairo_line_to (cr, 0, radius); +	cairo_curve_to (cr, +			0, 0, +			0, 0, +			radius, 0); +} + +static void +ev_loading_window_size_allocate (GtkWidget      *widget, +				 GtkAllocation  *allocation) +{ +	EvLoadingWindow *window = EV_LOADING_WINDOW (widget); +	GdkPixmap       *mask; +	cairo_t         *cr; +	double           r; + +	GTK_WIDGET_CLASS (ev_loading_window_parent_class)->size_allocate (widget, allocation); + +	if (allocation->width == window->width && allocation->height == window->height) +		return; + +	window->width = allocation->width; +	window->height = allocation->height; + +	mask = gdk_pixmap_new (NULL, window->width, window->height, 1); +	cr = gdk_cairo_create (GDK_DRAWABLE (mask)); + +	cairo_save (cr); +	cairo_rectangle (cr, 0, 0, window->width, window->height); +	cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); +	cairo_fill (cr); +	cairo_restore (cr); + +	cairo_set_source_rgb (cr, 1., 1., 1.); +	r = MIN (window->width, window->height) / 2.; +	_cairo_rounded_rectangle (cr, window->width, window->height, r); +	cairo_fill (cr); + +	cairo_destroy (cr); + +	gtk_widget_shape_combine_mask (widget, mask, 0, 0); +	g_object_unref (mask); +} + +static void +ev_loading_window_hide (GtkWidget *widget) +{ +	EvLoadingWindow *window = EV_LOADING_WINDOW (widget); + +	window->x = window->y = 0; + +	GTK_WIDGET_CLASS (ev_loading_window_parent_class)->hide (widget); +} + +static void +ev_loading_window_class_init (EvLoadingWindowClass *klass) +{ +	GObjectClass   *g_object_class = G_OBJECT_CLASS (klass); +	GtkWidgetClass *gtk_widget_class = GTK_WIDGET_CLASS (klass); + +	g_object_class->constructor = ev_loading_window_constructor; +	g_object_class->set_property = ev_loading_window_set_property; + +	gtk_widget_class->size_allocate = ev_loading_window_size_allocate; +	gtk_widget_class->hide = ev_loading_window_hide; + +	g_object_class_install_property (g_object_class, +					 PROP_PARENT, +					 g_param_spec_object ("parent", +							      "Parent", +							      "The parent window", +							      GTK_TYPE_WINDOW, +							      G_PARAM_WRITABLE | +							      G_PARAM_CONSTRUCT_ONLY)); +} + +/* Public methods */ +GtkWidget * +ev_loading_window_new (GtkWindow *parent) +{ +	GtkWidget *window; + +	g_return_val_if_fail (GTK_IS_WINDOW (parent), NULL); + +	window = g_object_new (EV_TYPE_LOADING_WINDOW, +			       "parent", parent, +			       NULL); +	return window; +} + +void +ev_loading_window_get_size (EvLoadingWindow *window, +			    gint            *width, +			    gint            *height) +{ +	if (width) *width = window->width; +	if (height) *height = window->height; +} + +void +ev_loading_window_move (EvLoadingWindow *window, +			gint             x, +			gint             y) +{ +	if (x == window->x && y == window->y) +		return; + +	window->x = x; +	window->y = y; +	gtk_window_move (GTK_WINDOW (window), x, y); +} diff --git a/libview/ev-loading-window.h b/libview/ev-loading-window.h new file mode 100644 index 00000000..fd8eee61 --- /dev/null +++ b/libview/ev-loading-window.h @@ -0,0 +1,49 @@ +/* ev-loading-window.h + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2010 Carlos Garcia Campos <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef EV_LOADING_WINDOW_H +#define EV_LOADING_WINDOW_H + +#include <gtk/gtk.h> + +G_BEGIN_DECLS + +typedef struct _EvLoadingWindow      EvLoadingWindow; +typedef struct _EvLoadingWindowClass EvLoadingWindowClass; + +#define EV_TYPE_LOADING_WINDOW              (ev_loading_window_get_type()) +#define EV_LOADING_WINDOW(object)           (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_LOADING_WINDOW, EvLoadingWindow)) +#define EV_LOADING_WINDOW_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_LOADING_WINDOW, EvLoadingWindowClass)) +#define EV_IS_LOADING_WINDOW(object)        (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_LOADING_WINDOW)) +#define EV_IS_LOADING_WINDOW_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE((klass), EV_TYPE_LOADING_WINDOW)) +#define EV_LOADING_WINDOW_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_LOADING_WINDOW, EvLoadingWindowClass)) + +GType      ev_loading_window_get_type (void) G_GNUC_CONST; +GtkWidget *ev_loading_window_new      (GtkWindow       *parent); +void       ev_loading_window_get_size (EvLoadingWindow *window, +				       gint            *width, +				       gint            *height); +void       ev_loading_window_move     (EvLoadingWindow *window, +				       gint             x, +				       gint             y); + +G_END_DECLS + +#endif /* EV_LOADING_WINDOW_H */ diff --git a/libview/ev-page-cache.c b/libview/ev-page-cache.c new file mode 100644 index 00000000..c4dc062c --- /dev/null +++ b/libview/ev-page-cache.c @@ -0,0 +1,521 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2009 Carlos Garcia Campos + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <config.h> + +#include <glib.h> +#include "ev-jobs.h" +#include "ev-job-scheduler.h" +#include "ev-mapping-list.h" +#include "ev-selection.h" +#include "ev-document-links.h" +#include "ev-document-forms.h" +#include "ev-document-images.h" +#include "ev-document-annotations.h" +#include "ev-document-text.h" +#include "ev-page-cache.h" + +typedef struct _EvPageCacheData { +	EvJob             *job; +	gboolean           done : 1; +	gboolean           dirty : 1; +	EvJobPageDataFlags flags; + +	EvMappingList     *link_mapping; +	EvMappingList     *image_mapping; +	EvMappingList     *form_field_mapping; +	EvMappingList     *annot_mapping; +	cairo_region_t    *text_mapping; +	EvRectangle       *text_layout; +	guint              text_layout_length; +	gchar             *text; +} EvPageCacheData; + +struct _EvPageCache { +	GObject parent; + +	EvDocument        *document; +	EvPageCacheData   *page_list; +	gint               n_pages; + +	/* Current range */ +	gint               start_page; +	gint               end_page; + +	EvJobPageDataFlags flags; +}; + +struct _EvPageCacheClass { +	GObjectClass parent_class; +}; + +#define EV_PAGE_DATA_FLAGS_DEFAULT (        \ +	EV_PAGE_DATA_INCLUDE_LINKS        | \ +	EV_PAGE_DATA_INCLUDE_TEXT_MAPPING | \ +	EV_PAGE_DATA_INCLUDE_IMAGES       | \ +	EV_PAGE_DATA_INCLUDE_FORMS        | \ +	EV_PAGE_DATA_INCLUDE_ANNOTS) + + +static void job_page_data_finished_cb (EvJob       *job, +				       EvPageCache *cache); +static void job_page_data_cancelled_cb (EvJob       *job, +					EvPageCacheData *data); + +G_DEFINE_TYPE (EvPageCache, ev_page_cache, G_TYPE_OBJECT) + +static void +ev_page_cache_data_free (EvPageCacheData *data) +{ +	if (data->job) { +		g_object_unref (data->job); +		data->job = NULL; +	} + +	if (data->link_mapping) { +		ev_mapping_list_unref (data->link_mapping); +		data->link_mapping = NULL; +	} + +	if (data->image_mapping) { +		ev_mapping_list_unref (data->image_mapping); +		data->image_mapping = NULL; +	} + +	if (data->form_field_mapping) { +		ev_mapping_list_unref (data->form_field_mapping); +		data->form_field_mapping = NULL; +	} + +	if (data->annot_mapping) { +		ev_mapping_list_unref (data->annot_mapping); +		data->annot_mapping = NULL; +	} + +	if (data->text_mapping) { +		cairo_region_destroy (data->text_mapping); +		data->text_mapping = NULL; +	} + +	if (data->text_layout) { +		g_free (data->text_layout); +		data->text_layout = NULL; +		data->text_layout_length = 0; +	} + +	if (data->text) { +		g_free (data->text); +		data->text = NULL; +	} +} + +static void +ev_page_cache_finalize (GObject *object) +{ +	EvPageCache *cache = EV_PAGE_CACHE (object); +	gint         i; + +	if (cache->page_list) { +		for (i = 0; i < cache->n_pages; i++) { +			EvPageCacheData *data; + +			data = &cache->page_list[i]; + +			if (data->job) { +				g_signal_handlers_disconnect_by_func (data->job, +								      G_CALLBACK (job_page_data_finished_cb), +								      cache); +				g_signal_handlers_disconnect_by_func (data->job, +								      G_CALLBACK (job_page_data_cancelled_cb), +								      data); +			} +			ev_page_cache_data_free (data); +		} + +		g_free (cache->page_list); +		cache->page_list = NULL; +		cache->n_pages = 0; +	} + +	if (cache->document) { +		g_object_unref (cache->document); +		cache->document = NULL; +	} + +	G_OBJECT_CLASS (ev_page_cache_parent_class)->finalize (object); +} + +static void +ev_page_cache_init (EvPageCache *cache) +{ +} + +static void +ev_page_cache_class_init (EvPageCacheClass *klass) +{ +	GObjectClass *g_object_class = G_OBJECT_CLASS (klass); + +	g_object_class->finalize = ev_page_cache_finalize; +} + +static EvJobPageDataFlags +ev_page_cache_get_flags_for_data (EvPageCache     *cache, +				  EvPageCacheData *data) +{ +	EvJobPageDataFlags flags = EV_PAGE_DATA_INCLUDE_NONE; + +	if (data->flags == cache->flags && !data->dirty) +		return cache->flags; + +	/* Flags changed or data is dirty */ +	if (cache->flags & EV_PAGE_DATA_INCLUDE_LINKS) { +		flags = (data->link_mapping) ? +			flags & ~EV_PAGE_DATA_INCLUDE_LINKS : +			flags | EV_PAGE_DATA_INCLUDE_LINKS; +	} + +	if (cache->flags & EV_PAGE_DATA_INCLUDE_IMAGES) { +		flags = (data->image_mapping) ? +			flags & ~EV_PAGE_DATA_INCLUDE_IMAGES : +			flags | EV_PAGE_DATA_INCLUDE_IMAGES; +	} + +	if (cache->flags & EV_PAGE_DATA_INCLUDE_FORMS) { +		flags = (data->form_field_mapping) ? +			flags & ~EV_PAGE_DATA_INCLUDE_FORMS : +			flags | EV_PAGE_DATA_INCLUDE_FORMS; +	} + +	if (cache->flags & EV_PAGE_DATA_INCLUDE_ANNOTS) { +		flags = (data->annot_mapping) ? +			flags & ~EV_PAGE_DATA_INCLUDE_ANNOTS : +			flags | EV_PAGE_DATA_INCLUDE_ANNOTS; +	} + +	if (cache->flags & EV_PAGE_DATA_INCLUDE_TEXT_MAPPING) { +		flags = (data->text_mapping) ? +			flags & ~EV_PAGE_DATA_INCLUDE_TEXT_MAPPING : +			flags | EV_PAGE_DATA_INCLUDE_TEXT_MAPPING; +	} + +	if (cache->flags & EV_PAGE_DATA_INCLUDE_TEXT) { +		flags = (data->text) ? +			flags & ~EV_PAGE_DATA_INCLUDE_TEXT : +			flags | EV_PAGE_DATA_INCLUDE_TEXT; +	} + +	if (cache->flags & EV_PAGE_DATA_INCLUDE_TEXT_LAYOUT) { +		flags = (data->text_layout_length > 0) ? +			flags & ~EV_PAGE_DATA_INCLUDE_TEXT_LAYOUT : +			flags | EV_PAGE_DATA_INCLUDE_TEXT_LAYOUT; +	} + +	return flags; +} + +EvPageCache * +ev_page_cache_new (EvDocument *document) +{ +	EvPageCache *cache; + +	g_return_val_if_fail (EV_IS_DOCUMENT (document), NULL); + +	cache = EV_PAGE_CACHE (g_object_new (EV_TYPE_PAGE_CACHE, NULL)); +	cache->document = g_object_ref (document); +	cache->n_pages = ev_document_get_n_pages (document); +	cache->flags = EV_PAGE_DATA_FLAGS_DEFAULT; +	cache->page_list = g_new0 (EvPageCacheData, cache->n_pages); + +	return cache; +} + +static void +job_page_data_finished_cb (EvJob       *job, +			   EvPageCache *cache) +{ +	EvJobPageData   *job_data = EV_JOB_PAGE_DATA (job); +	EvPageCacheData *data; + +	data = &cache->page_list[job_data->page]; + +	if (job_data->flags & EV_PAGE_DATA_INCLUDE_LINKS) +		data->link_mapping = job_data->link_mapping; +	if (job_data->flags & EV_PAGE_DATA_INCLUDE_IMAGES) +		data->image_mapping = job_data->image_mapping; +	if (job_data->flags & EV_PAGE_DATA_INCLUDE_FORMS) +		data->form_field_mapping = job_data->form_field_mapping; +	if (job_data->flags & EV_PAGE_DATA_INCLUDE_ANNOTS) +		data->annot_mapping = job_data->annot_mapping; +	if (job_data->flags & EV_PAGE_DATA_INCLUDE_TEXT_MAPPING) +		data->text_mapping = job_data->text_mapping; +	if (job_data->flags & EV_PAGE_DATA_INCLUDE_TEXT_LAYOUT) { +		data->text_layout = job_data->text_layout; +		data->text_layout_length = job_data->text_layout_length; +	} +	if (job_data->flags & EV_PAGE_DATA_INCLUDE_TEXT) +		data->text = job_data->text; +	data->done = TRUE; +	data->dirty = FALSE; + +	g_object_unref (data->job); +	data->job = NULL; +} + +static void +job_page_data_cancelled_cb (EvJob           *job, +			    EvPageCacheData *data) +{ +	g_object_unref (data->job); +	data->job = NULL; +} + +void +ev_page_cache_set_page_range (EvPageCache *cache, +			      gint         start, +			      gint         end) +{ +	gint i; + +	if (cache->flags == EV_PAGE_DATA_INCLUDE_NONE) +		return; + +	cache->start_page = start; +	cache->end_page = end; + +	for (i = start; i <= end; i++) { +		EvPageCacheData   *data = &cache->page_list[i]; +		EvJobPageDataFlags flags; + +		if (data->flags == cache->flags && !data->dirty && (data->done || data->job)) +			continue; + +		if (data->job) +			ev_job_cancel (data->job); + +		flags = ev_page_cache_get_flags_for_data (cache, data); + +		data->flags = cache->flags; +		data->job = ev_job_page_data_new (cache->document, i, flags); +		g_signal_connect (data->job, "finished", +				  G_CALLBACK (job_page_data_finished_cb), +				  cache); +		g_signal_connect (data->job, "cancelled", +				  G_CALLBACK (job_page_data_cancelled_cb), +				  data); +		ev_job_scheduler_push_job (data->job, EV_JOB_PRIORITY_NONE); +	} +} + +EvJobPageDataFlags +ev_page_cache_get_flags (EvPageCache *cache) +{ +	return cache->flags; +} + +void +ev_page_cache_set_flags (EvPageCache       *cache, +			 EvJobPageDataFlags flags) +{ +	if (cache->flags == flags) +		return; + +	cache->flags = flags; + +	/* Update the current range for new flags */ +	ev_page_cache_set_page_range (cache, cache->start_page, cache->end_page); +} + +void +ev_page_cache_mark_dirty (EvPageCache *cache, +			  gint         page) +{ +	EvPageCacheData *data; + +	g_return_if_fail (EV_IS_PAGE_CACHE (cache)); + +	data = &cache->page_list[page]; +	data->dirty = TRUE; + +	/* Update the current range */ +	ev_page_cache_set_page_range (cache, cache->start_page, cache->end_page); +} + +EvMappingList * +ev_page_cache_get_link_mapping (EvPageCache *cache, +				gint         page) +{ +	EvPageCacheData *data; + +	g_return_val_if_fail (EV_IS_PAGE_CACHE (cache), NULL); +	g_return_val_if_fail (page >= 0 && page < cache->n_pages, NULL); + +	if (!(cache->flags & EV_PAGE_DATA_INCLUDE_LINKS)) +		return NULL; + +	data = &cache->page_list[page]; +	if (data->done) +		return data->link_mapping; + +	if (data->job) +		return EV_JOB_PAGE_DATA (data->job)->link_mapping; + +	return data->link_mapping; +} + +EvMappingList * +ev_page_cache_get_image_mapping (EvPageCache *cache, +				 gint         page) +{ +	EvPageCacheData *data; + +	g_return_val_if_fail (EV_IS_PAGE_CACHE (cache), NULL); +	g_return_val_if_fail (page >= 0 && page < cache->n_pages, NULL); + +	if (!(cache->flags & EV_PAGE_DATA_INCLUDE_IMAGES)) +		return NULL; + +	data = &cache->page_list[page]; +	if (data->done) +		return data->image_mapping; + +	if (data->job) +		return EV_JOB_PAGE_DATA (data->job)->image_mapping; + +	return data->image_mapping; +} + +EvMappingList * +ev_page_cache_get_form_field_mapping (EvPageCache *cache, +				      gint         page) +{ +	EvPageCacheData *data; + +	g_return_val_if_fail (EV_IS_PAGE_CACHE (cache), NULL); +	g_return_val_if_fail (page >= 0 && page < cache->n_pages, NULL); + +	if (!(cache->flags & EV_PAGE_DATA_INCLUDE_FORMS)) +		return NULL; + +	data = &cache->page_list[page]; +	if (data->done) +		return data->form_field_mapping; + +	if (data->job) +		return EV_JOB_PAGE_DATA (data->job)->form_field_mapping; + +	return data->form_field_mapping; +} + +EvMappingList * +ev_page_cache_get_annot_mapping (EvPageCache *cache, +				 gint         page) +{ +	EvPageCacheData *data; + +	g_return_val_if_fail (EV_IS_PAGE_CACHE (cache), NULL); +	g_return_val_if_fail (page >= 0 && page < cache->n_pages, NULL); + +	if (!(cache->flags & EV_PAGE_DATA_INCLUDE_ANNOTS)) +		return NULL; + +	data = &cache->page_list[page]; +	if (data->done) +		return data->annot_mapping; + +	if (data->job) +		return EV_JOB_PAGE_DATA (data->job)->annot_mapping; + +	return data->annot_mapping; +} + +cairo_region_t * +ev_page_cache_get_text_mapping (EvPageCache *cache, +				gint         page) +{ +	EvPageCacheData *data; + +	g_return_val_if_fail (EV_IS_PAGE_CACHE (cache), NULL); +	g_return_val_if_fail (page >= 0 && page < cache->n_pages, NULL); + +	if (!(cache->flags & EV_PAGE_DATA_INCLUDE_TEXT_MAPPING)) +		return NULL; + +	data = &cache->page_list[page]; +	if (data->done) +		return data->text_mapping; + +	if (data->job) +		return EV_JOB_PAGE_DATA (data->job)->text_mapping; + +	return data->text_mapping; +} + +const gchar * +ev_page_cache_get_text (EvPageCache *cache, +			     gint         page) +{ +	EvPageCacheData *data; + +	g_return_val_if_fail (EV_IS_PAGE_CACHE (cache), NULL); +	g_return_val_if_fail (page >= 0 && page < cache->n_pages, NULL); + +	if (!(cache->flags & EV_PAGE_DATA_INCLUDE_TEXT)) +		return NULL; + +	data = &cache->page_list[page]; +	if (data->done) +		return data->text; + +	if (data->job) +		return EV_JOB_PAGE_DATA (data->job)->text; + +	return data->text; +} + +gboolean +ev_page_cache_get_text_layout (EvPageCache  *cache, +			       gint          page, +			       EvRectangle **areas, +			       guint        *n_areas) +{ +	EvPageCacheData *data; + +	g_return_val_if_fail (EV_IS_PAGE_CACHE (cache), FALSE); +	g_return_val_if_fail (page >= 0 && page < cache->n_pages, FALSE); + +	if (!(cache->flags & EV_PAGE_DATA_INCLUDE_TEXT_LAYOUT)) +		return FALSE; + +	data = &cache->page_list[page]; +	if (data->done)	{ +		*areas = data->text_layout; +		*n_areas = data->text_layout_length; + +		return TRUE; +	} + +	if (data->job) { +		*areas = EV_JOB_PAGE_DATA (data->job)->text_layout; +		*n_areas = EV_JOB_PAGE_DATA (data->job)->text_layout_length; + +		return TRUE; +	} + +	return FALSE; +} diff --git a/libview/ev-page-cache.h b/libview/ev-page-cache.h new file mode 100644 index 00000000..7432e44d --- /dev/null +++ b/libview/ev-page-cache.h @@ -0,0 +1,71 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2009 Carlos Garcia Campos + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef EV_PAGE_CACHE_H +#define EV_PAGE_CACHE_H + +#include <glib-object.h> +#include <gdk/gdk.h> +#include <evince-document.h> +#include <evince-view.h> + +G_BEGIN_DECLS + +#define EV_TYPE_PAGE_CACHE    (ev_page_cache_get_type ()) +#define EV_PAGE_CACHE(obj)    (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_PAGE_CACHE, EvPageCache)) +#define EV_IS_PAGE_CACHE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_PAGE_CACHE)) + +typedef struct _EvPageCache        EvPageCache; +typedef struct _EvPageCacheClass   EvPageCacheClass; + +GType              ev_page_cache_get_type               (void) G_GNUC_CONST; +EvPageCache       *ev_page_cache_new                    (EvDocument        *document); + +void               ev_page_cache_set_page_range         (EvPageCache       *cache, +							 gint               start, +							 gint               end); +EvJobPageDataFlags ev_page_cache_get_flags              (EvPageCache       *cache); +void               ev_page_cache_set_flags              (EvPageCache       *cache, +							 EvJobPageDataFlags flags); +void               ev_page_cache_mark_dirty             (EvPageCache       *cache, +							 gint               page); +EvMappingList     *ev_page_cache_get_link_mapping       (EvPageCache       *cache, +							 gint               page); +EvMappingList     *ev_page_cache_get_image_mapping      (EvPageCache       *cache, +							 gint               page); +EvMappingList     *ev_page_cache_get_form_field_mapping (EvPageCache       *cache, +							 gint               page); +EvMappingList     *ev_page_cache_get_annot_mapping      (EvPageCache       *cache, +							 gint               page); +cairo_region_t    *ev_page_cache_get_text_mapping       (EvPageCache       *cache, +							 gint               page); +const gchar       *ev_page_cache_get_text               (EvPageCache       *cache, +							 gint               page); +gboolean           ev_page_cache_get_text_layout        (EvPageCache       *cache, +							 gint               page, +							 EvRectangle      **areas, +							 guint             *n_areas); + +G_END_DECLS + +#endif /* EV_PAGE_CACHE_H */ diff --git a/libview/ev-pixbuf-cache.c b/libview/ev-pixbuf-cache.c new file mode 100644 index 00000000..367f70d7 --- /dev/null +++ b/libview/ev-pixbuf-cache.c @@ -0,0 +1,1192 @@ +#include <config.h> +#include "ev-pixbuf-cache.h" +#include "ev-job-scheduler.h" +#include "ev-view-private.h" + +typedef struct _CacheJobInfo +{ +	EvJob *job; +	gboolean page_ready; + +	/* Region of the page that needs to be drawn */ +	cairo_region_t  *region; + +	/* Data we get from rendering */ +	cairo_surface_t *surface; + +	/* Selection data.  +	 * Selection_points are the coordinates encapsulated in selection. +	 * target_points is the target selection size. */ +	EvRectangle      selection_points; +	EvRectangle      target_points; +	EvSelectionStyle selection_style; +	gboolean         points_set; +	 +	cairo_surface_t *selection; +	cairo_region_t  *selection_region; +} CacheJobInfo; + +struct _EvPixbufCache +{ +	GObject parent; + +	/* We keep a link to our containing view just for style information. */ +	GtkWidget *view; +	EvDocument *document; +	EvDocumentModel *model; +	int start_page; +	int end_page; +	gboolean inverted_colors; + +	gsize max_size; + +	/* preload_cache_size is the number of pages prior to the current +	 * visible area that we cache.  It's normally 1, but could be 2 in the +	 * case of twin pages. +	 */ +	int preload_cache_size; +	guint job_list_len; + +	CacheJobInfo *prev_job; +	CacheJobInfo *job_list; +	CacheJobInfo *next_job; +}; + +struct _EvPixbufCacheClass +{ +	GObjectClass parent_class; + +	void (* job_finished) (EvPixbufCache *pixbuf_cache); +}; + + +enum +{ +	JOB_FINISHED, +	N_SIGNALS, +}; + +static guint signals[N_SIGNALS] = {0, }; + +static void          ev_pixbuf_cache_init       (EvPixbufCache      *pixbuf_cache); +static void          ev_pixbuf_cache_class_init (EvPixbufCacheClass *pixbuf_cache); +static void          ev_pixbuf_cache_finalize   (GObject            *object); +static void          ev_pixbuf_cache_dispose    (GObject            *object); +static void          job_finished_cb            (EvJob              *job, +						 EvPixbufCache      *pixbuf_cache); +static CacheJobInfo *find_job_cache             (EvPixbufCache      *pixbuf_cache, +						 int                 page); +static gboolean      new_selection_surface_needed(EvPixbufCache      *pixbuf_cache, +						  CacheJobInfo       *job_info, +						  gint                page, +						  gfloat              scale); + + +/* These are used for iterating through the prev and next arrays */ +#define FIRST_VISIBLE_PREV(pixbuf_cache) \ +	(MAX (0, pixbuf_cache->preload_cache_size - pixbuf_cache->start_page)) +#define VISIBLE_NEXT_LEN(pixbuf_cache) \ +	(MIN(pixbuf_cache->preload_cache_size, ev_document_get_n_pages (pixbuf_cache->document) - (1 + pixbuf_cache->end_page))) +#define PAGE_CACHE_LEN(pixbuf_cache) \ +	((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1) + +#define MAX_PRELOADED_PAGES 3 + +G_DEFINE_TYPE (EvPixbufCache, ev_pixbuf_cache, G_TYPE_OBJECT) + +static void +ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache) +{ +	pixbuf_cache->start_page = -1; +	pixbuf_cache->end_page = -1; +} + +static void +ev_pixbuf_cache_class_init (EvPixbufCacheClass *class) +{ +	GObjectClass *object_class; + +	object_class = G_OBJECT_CLASS (class); + +	object_class->finalize = ev_pixbuf_cache_finalize; +	object_class->dispose = ev_pixbuf_cache_dispose; + +	signals[JOB_FINISHED] = +		g_signal_new ("job-finished", +			      G_OBJECT_CLASS_TYPE (object_class), +			      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +			      G_STRUCT_OFFSET (EvPixbufCacheClass, job_finished), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__POINTER, +			      G_TYPE_NONE, 1, +			      G_TYPE_POINTER); +} + +static void +ev_pixbuf_cache_finalize (GObject *object) +{ +	EvPixbufCache *pixbuf_cache; + +	pixbuf_cache = EV_PIXBUF_CACHE (object); + +	if (pixbuf_cache->job_list) { +		g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->job_list_len, +			       pixbuf_cache->job_list); +		pixbuf_cache->job_list = NULL; +	} +	if (pixbuf_cache->prev_job) { +		g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->preload_cache_size, +			       pixbuf_cache->prev_job); +		pixbuf_cache->prev_job = NULL; +	} +	if (pixbuf_cache->next_job) { +		g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->preload_cache_size, +			       pixbuf_cache->next_job); +		pixbuf_cache->next_job = NULL; +	} + +	g_object_unref (pixbuf_cache->model); + +	G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->finalize (object); +} + +static void +dispose_cache_job_info (CacheJobInfo *job_info, +			gpointer      data) +{ +	if (job_info == NULL) +		return; + +	if (job_info->job) { +		g_signal_handlers_disconnect_by_func (job_info->job, +						      G_CALLBACK (job_finished_cb), +						      data); +		ev_job_cancel (job_info->job); +		g_object_unref (job_info->job); +		job_info->job = NULL; +	} +	if (job_info->surface) { +		cairo_surface_destroy (job_info->surface); +		job_info->surface = NULL; +	} +	if (job_info->region) { +		cairo_region_destroy (job_info->region); +		job_info->region = NULL; +	} +	if (job_info->selection) { +		cairo_surface_destroy (job_info->selection); +		job_info->selection = NULL; +	} +	if (job_info->selection_region) { +		cairo_region_destroy (job_info->selection_region); +		job_info->selection_region = NULL; +	} + +	job_info->points_set = FALSE; +} + +static void +ev_pixbuf_cache_dispose (GObject *object) +{ +	EvPixbufCache *pixbuf_cache; +	int i; + +	pixbuf_cache = EV_PIXBUF_CACHE (object); + +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache); +		dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache); +	} + +	for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { +		dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache); +	} + +	G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->dispose (object); +} + + +EvPixbufCache * +ev_pixbuf_cache_new (GtkWidget       *view, +		     EvDocumentModel *model, +		     gsize            max_size) +{ +	EvPixbufCache *pixbuf_cache; + +	pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL); +	/* This is a backlink, so we don't ref this */  +	pixbuf_cache->view = view; +	pixbuf_cache->model = g_object_ref (model); +	pixbuf_cache->document = ev_document_model_get_document (model); +	pixbuf_cache->max_size = max_size; + +	return pixbuf_cache; +} + +void +ev_pixbuf_cache_set_max_size (EvPixbufCache *pixbuf_cache, +			      gsize          max_size) +{ +	if (pixbuf_cache->max_size == max_size) +		return; + +	if (pixbuf_cache->max_size > max_size) +		ev_pixbuf_cache_clear (pixbuf_cache); +	pixbuf_cache->max_size = max_size; +} + +static void +copy_job_to_job_info (EvJobRender   *job_render, +		      CacheJobInfo  *job_info, +		      EvPixbufCache *pixbuf_cache) +{ +	if (job_info->surface) { +		cairo_surface_destroy (job_info->surface); +	} +	job_info->surface = cairo_surface_reference (job_render->surface); +	if (pixbuf_cache->inverted_colors) { +		ev_document_misc_invert_surface (job_info->surface); +	} + +	job_info->points_set = FALSE; +	if (job_render->include_selection) { +		if (job_info->selection) { +			cairo_surface_destroy (job_info->selection); +			job_info->selection = NULL; +		} +		if (job_info->selection_region) { +			cairo_region_destroy (job_info->selection_region); +			job_info->selection_region = NULL; +		} + +		job_info->selection_points = job_render->selection_points; +		job_info->selection_region = cairo_region_reference (job_render->selection_region); +		job_info->selection = cairo_surface_reference (job_render->selection); +		g_assert (job_info->selection_points.x1 >= 0); +		job_info->points_set = TRUE; +	} + +	if (job_info->job) { +		g_signal_handlers_disconnect_by_func (job_info->job, +						      G_CALLBACK (job_finished_cb), +						      pixbuf_cache); +		ev_job_cancel (job_info->job); +		g_object_unref (job_info->job); +		job_info->job = NULL; +	} + +	job_info->page_ready = TRUE; +} + +static void +job_finished_cb (EvJob         *job, +		 EvPixbufCache *pixbuf_cache) +{ +	CacheJobInfo *job_info; +	EvJobRender *job_render = EV_JOB_RENDER (job); + +	/* If the job is outside of our interest, we silently discard it */ +	if ((job_render->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) || +	    (job_render->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) { +		g_object_unref (job); +		return; +	} + +	job_info = find_job_cache (pixbuf_cache, job_render->page); + +	copy_job_to_job_info (job_render, job_info, pixbuf_cache); +	g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region); +} + +/* This checks a job to see if the job would generate the right sized pixbuf + * given a scale.  If it won't, it removes the job and clears it to NULL. + */ +static void +check_job_size_and_unref (EvPixbufCache *pixbuf_cache, +			  CacheJobInfo  *job_info, +			  gfloat         scale) +{ +	gint width, height; + +	g_assert (job_info); + +	if (job_info->job == NULL) +		return; + +	_get_page_size_for_scale_and_rotation (job_info->job->document, +					       EV_JOB_RENDER (job_info->job)->page, +					       scale, +					       EV_JOB_RENDER (job_info->job)->rotation, +					       &width, &height); +	if (width == EV_JOB_RENDER (job_info->job)->target_width && +	    height == EV_JOB_RENDER (job_info->job)->target_height) +		return; + +	g_signal_handlers_disconnect_by_func (job_info->job, +					      G_CALLBACK (job_finished_cb), +					      pixbuf_cache); +	ev_job_cancel (job_info->job); +	g_object_unref (job_info->job); +	job_info->job = NULL; +} + +/* Do all function that copies a job from an older cache to it's position in the + * new cache.  It clears the old job if it doesn't have a place. + */ +static void +move_one_job (CacheJobInfo  *job_info, +	      EvPixbufCache *pixbuf_cache, +	      int            page, +	      CacheJobInfo  *new_job_list, +	      CacheJobInfo  *new_prev_job, +	      CacheJobInfo  *new_next_job, +	      int            new_preload_cache_size, +	      int            start_page, +	      int            end_page, +	      gint           priority) +{ +	CacheJobInfo *target_page = NULL; +	int page_offset; +	gint new_priority; + +	if (page < (start_page - new_preload_cache_size) || +	    page > (end_page + new_preload_cache_size)) { +		dispose_cache_job_info (job_info, pixbuf_cache); +		return; +	} + +	/* find the target page to copy it over to. */ +	if (page < start_page) { +		page_offset = (page - (start_page - new_preload_cache_size)); + +		g_assert (page_offset >= 0 && +			  page_offset < new_preload_cache_size); +		target_page = new_prev_job + page_offset; +		new_priority = EV_JOB_PRIORITY_LOW; +	} else if (page > end_page) { +		page_offset = (page - (end_page + 1)); + +		g_assert (page_offset >= 0 && +			  page_offset < new_preload_cache_size); +		target_page = new_next_job + page_offset; +		new_priority = EV_JOB_PRIORITY_LOW; +	} else { +		page_offset = page - start_page; +		g_assert (page_offset >= 0 && +			  page_offset <= ((end_page - start_page) + 1)); +		new_priority = EV_JOB_PRIORITY_URGENT; +		target_page = new_job_list + page_offset; +	} + +	*target_page = *job_info; +	job_info->job = NULL; +	job_info->region = NULL; +	job_info->surface = NULL; + +	if (new_priority != priority && target_page->job) { +		ev_job_scheduler_update_job (target_page->job, new_priority); +	} +} + +static gsize +ev_pixbuf_cache_get_page_size (EvPixbufCache *pixbuf_cache, +			       gint           page_index, +			       gdouble        scale, +			       gint           rotation) +{ +	gint width, height; + +	_get_page_size_for_scale_and_rotation (pixbuf_cache->document, +					       page_index, scale, rotation, +					       &width, &height); +	return height * cairo_format_stride_for_width (CAIRO_FORMAT_RGB24, width); +} + +static gint +ev_pixbuf_cache_get_preload_size (EvPixbufCache *pixbuf_cache, +				  gint           start_page, +				  gint           end_page, +				  gdouble        scale, +				  gint           rotation) +{ +	gsize range_size = 0; +	gint  new_preload_cache_size = 0; +	gint  i; +	guint n_pages = ev_document_get_n_pages (pixbuf_cache->document); + +	/* Get the size of the current range */ +	for (i = start_page; i <= end_page; i++) { +		range_size += ev_pixbuf_cache_get_page_size (pixbuf_cache, i, scale, rotation); +	} + +	if (range_size >= pixbuf_cache->max_size) +		return new_preload_cache_size; + +	i = 1; +	while (((start_page - i > 0) || (end_page + i < n_pages)) && +	       new_preload_cache_size < MAX_PRELOADED_PAGES) { +		gsize    page_size; +		gboolean updated = FALSE; + +		if (end_page + i < n_pages) { +			page_size = ev_pixbuf_cache_get_page_size (pixbuf_cache, end_page + i, +								   scale, rotation); +			if (page_size + range_size <= pixbuf_cache->max_size) { +				range_size += page_size; +				new_preload_cache_size++; +				updated = TRUE; +			} else { +				break; +			} +		} + +		if (start_page - i > 0) { +			page_size = ev_pixbuf_cache_get_page_size (pixbuf_cache, start_page - i, +								   scale, rotation); +			if (page_size + range_size <= pixbuf_cache->max_size) { +				range_size += page_size; +				if (!updated) +					new_preload_cache_size++; +			} else { +				break; +			} +		} +		i++; +	} + +	return new_preload_cache_size; +} + +static void +ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache, +			      gint           start_page, +			      gint           end_page, +			      guint          rotation, +			      gdouble        scale) +{ +	CacheJobInfo *new_job_list; +	CacheJobInfo *new_prev_job = NULL; +	CacheJobInfo *new_next_job = NULL; +	gint          new_preload_cache_size; +	guint         new_job_list_len; +	int           i, page; + +	new_preload_cache_size = ev_pixbuf_cache_get_preload_size (pixbuf_cache, +								   start_page, +								   end_page, +								   scale, +								   rotation); +	if (pixbuf_cache->start_page == start_page && +	    pixbuf_cache->end_page == end_page && +	    pixbuf_cache->preload_cache_size == new_preload_cache_size) +		return; + +	new_job_list_len = (end_page - start_page) + 1; +	new_job_list = g_slice_alloc0 (sizeof (CacheJobInfo) * new_job_list_len); +	if (new_preload_cache_size > 0) { +		new_prev_job = g_slice_alloc0 (sizeof (CacheJobInfo) * new_preload_cache_size); +		new_next_job = g_slice_alloc0 (sizeof (CacheJobInfo) * new_preload_cache_size); +	} + +	/* We go through each job in the old cache and either clear it or move +	 * it to a new location. */ + +	/* Start with the prev cache. */ +	page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size; +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		if (page < 0) { +			dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache); +		} else { +			move_one_job (pixbuf_cache->prev_job + i, +				      pixbuf_cache, page, +				      new_job_list, new_prev_job, new_next_job, +				      new_preload_cache_size, +				      start_page, end_page, EV_JOB_PRIORITY_LOW); +		} +		page ++; +	} + +	page = pixbuf_cache->start_page; +	for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache) && page >= 0; i++) { +		move_one_job (pixbuf_cache->job_list + i, +			      pixbuf_cache, page, +			      new_job_list, new_prev_job, new_next_job, +			      new_preload_cache_size, +			      start_page, end_page, EV_JOB_PRIORITY_URGENT); +		page ++; +	} + +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		if (page >= ev_document_get_n_pages (pixbuf_cache->document)) { +			dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache); +		} else { +			move_one_job (pixbuf_cache->next_job + i, +				      pixbuf_cache, page, +				      new_job_list, new_prev_job, new_next_job, +				      new_preload_cache_size, +				      start_page, end_page, EV_JOB_PRIORITY_LOW); +		} +		page ++; +	} + +	if (pixbuf_cache->job_list) { +		g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->job_list_len, +			       pixbuf_cache->job_list); +	} +	if (pixbuf_cache->prev_job) { +		g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->preload_cache_size, +			       pixbuf_cache->prev_job); +	} +	if (pixbuf_cache->next_job) { +		g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->preload_cache_size, +			       pixbuf_cache->next_job); +	} + +	pixbuf_cache->preload_cache_size = new_preload_cache_size; +	pixbuf_cache->job_list_len = new_job_list_len; + +	pixbuf_cache->job_list = new_job_list; +	pixbuf_cache->prev_job = new_prev_job; +	pixbuf_cache->next_job = new_next_job; + +	pixbuf_cache->start_page = start_page; +	pixbuf_cache->end_page = end_page; +} + +static CacheJobInfo * +find_job_cache (EvPixbufCache *pixbuf_cache, +		int            page) +{ +	int page_offset; + +	if (page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size) || +	    page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size)) +		return NULL; + +	if (page < pixbuf_cache->start_page) { +		page_offset = (page - (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)); + +		g_assert (page_offset >= 0 && +			  page_offset < pixbuf_cache->preload_cache_size); +		return pixbuf_cache->prev_job + page_offset; +	} + +	if (page > pixbuf_cache->end_page) { +		page_offset = (page - (pixbuf_cache->end_page + 1)); + +		g_assert (page_offset >= 0 && +			  page_offset < pixbuf_cache->preload_cache_size); +		return pixbuf_cache->next_job + page_offset; +	} + +	page_offset = page - pixbuf_cache->start_page; +	g_assert (page_offset >= 0 && +		  page_offset <= PAGE_CACHE_LEN(pixbuf_cache)); +	return pixbuf_cache->job_list + page_offset; +} + +static void +ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache, +				 gfloat         scale) +{ +	int i; + +	for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { +		check_job_size_and_unref (pixbuf_cache, pixbuf_cache->job_list + i, scale); +	} + +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		check_job_size_and_unref (pixbuf_cache, pixbuf_cache->prev_job + i, scale); +		check_job_size_and_unref (pixbuf_cache, pixbuf_cache->next_job + i, scale); +	} +} + +static void +get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base) +{ +	GtkStyle *style = gtk_widget_get_style (widget); + +	if (gtk_widget_has_focus (widget)) { +		*text = &style->text [GTK_STATE_SELECTED]; +		*base = &style->base [GTK_STATE_SELECTED]; +	} else { +		*text = &style->text [GTK_STATE_ACTIVE]; +		*base = &style->base [GTK_STATE_ACTIVE]; +	} +} + +static void +add_job (EvPixbufCache  *pixbuf_cache, +	 CacheJobInfo   *job_info, +	 cairo_region_t *region, +	 gint            width, +	 gint            height, +	 gint            page, +	 gint            rotation, +	 gfloat          scale, +	 EvJobPriority   priority) +{ +	job_info->page_ready = FALSE; + +	if (job_info->region) +		cairo_region_destroy (job_info->region); +	job_info->region = region ? cairo_region_reference (region) : NULL; + +	job_info->job = ev_job_render_new (pixbuf_cache->document, +					   page, rotation, scale, +					   width, height); + +	if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) { +		GdkColor *text, *base; + +		gtk_widget_ensure_style (pixbuf_cache->view); +		get_selection_colors (pixbuf_cache->view, &text, &base); +		ev_job_render_set_selection_info (EV_JOB_RENDER (job_info->job),  +						  &(job_info->target_points), +						  job_info->selection_style, +						  text, base); +	} + +	g_signal_connect (job_info->job, "finished", +			  G_CALLBACK (job_finished_cb), +			  pixbuf_cache); +	ev_job_scheduler_push_job (job_info->job, priority); +} + +static void +add_job_if_needed (EvPixbufCache *pixbuf_cache, +		   CacheJobInfo  *job_info, +		   gint           page, +		   gint           rotation, +		   gfloat         scale, +		   EvJobPriority  priority) +{ +	gint width, height; + +	if (job_info->job) +		return; + +	_get_page_size_for_scale_and_rotation (pixbuf_cache->document, +					       page, scale, rotation, +					       &width, &height); + +	if (job_info->surface && +	    cairo_image_surface_get_width (job_info->surface) == width && +	    cairo_image_surface_get_height (job_info->surface) == height) +		return; + +	/* Free old surfaces for non visible pages */ +	if (priority == EV_JOB_PRIORITY_LOW) { +		if (job_info->surface) { +			cairo_surface_destroy (job_info->surface); +			job_info->surface = NULL; +		} + +		if (job_info->selection) { +			cairo_surface_destroy (job_info->selection); +			job_info->selection = NULL; +		} +	} + +	add_job (pixbuf_cache, job_info, NULL, +		 width, height, page, rotation, scale, +		 priority); +} + +static void +ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache, +				    gint           rotation, +				    gfloat         scale) +{ +	CacheJobInfo *job_info; +	int page; +	int i; + +	for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { +		job_info = (pixbuf_cache->job_list + i); +		page = pixbuf_cache->start_page + i; + +		add_job_if_needed (pixbuf_cache, job_info, +				   page, rotation, scale, +				   EV_JOB_PRIORITY_URGENT); +	} + +	for (i = FIRST_VISIBLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) { +		job_info = (pixbuf_cache->prev_job + i); +		page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i; + +		add_job_if_needed (pixbuf_cache, job_info, +				   page, rotation, scale, +				   EV_JOB_PRIORITY_LOW); +	} + +	for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache); i++) { +		job_info = (pixbuf_cache->next_job + i); +		page = pixbuf_cache->end_page + 1 + i; + +		add_job_if_needed (pixbuf_cache, job_info, +				   page, rotation, scale, +				   EV_JOB_PRIORITY_LOW); +	} + +} + +void +ev_pixbuf_cache_set_page_range (EvPixbufCache  *pixbuf_cache, +				gint            start_page, +				gint            end_page, +				GList          *selection_list) +{ +	gdouble scale = ev_document_model_get_scale (pixbuf_cache->model); +	gint    rotation = ev_document_model_get_rotation (pixbuf_cache->model); + +	g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache)); + +	g_return_if_fail (start_page >= 0 && start_page < ev_document_get_n_pages (pixbuf_cache->document)); +	g_return_if_fail (end_page >= 0 && end_page < ev_document_get_n_pages (pixbuf_cache->document)); +	g_return_if_fail (end_page >= start_page); + +	/* First, resize the page_range as needed.  We cull old pages +	 * mercilessly. */ +	ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page, rotation, scale); + +	/* Then, we update the current jobs to see if any of them are the wrong +	 * size, we remove them if we need to. */ +	ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale); + +	/* Next, we update the target selection for our pages */ +	ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list); + +	/* Finally, we add the new jobs for all the sizes that don't have a +	 * pixbuf */ +	ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale); +} + +void +ev_pixbuf_cache_set_inverted_colors (EvPixbufCache *pixbuf_cache, +				     gboolean       inverted_colors) +{ +	gint i; + +	if (pixbuf_cache->inverted_colors == inverted_colors) +		return; + +	pixbuf_cache->inverted_colors = inverted_colors; + +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		CacheJobInfo *job_info; + +		job_info = pixbuf_cache->prev_job + i; +		if (job_info && job_info->surface) +			ev_document_misc_invert_surface (job_info->surface); + +		job_info = pixbuf_cache->next_job + i; +		if (job_info && job_info->surface) +			ev_document_misc_invert_surface (job_info->surface); +	} + +	for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { +		CacheJobInfo *job_info; + +		job_info = pixbuf_cache->job_list + i; +		if (job_info && job_info->surface) +			ev_document_misc_invert_surface (job_info->surface); +	} +} + +cairo_surface_t * +ev_pixbuf_cache_get_surface (EvPixbufCache *pixbuf_cache, +			     gint           page) +{ +	CacheJobInfo *job_info; + +	job_info = find_job_cache (pixbuf_cache, page); +	if (job_info == NULL) +		return NULL; + +	if (job_info->page_ready) +		return job_info->surface; + +	/* We don't need to wait for the idle to handle the callback */ +	if (job_info->job && +	    EV_JOB_RENDER (job_info->job)->page_ready) { +		copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache); +		g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region); +	} + +	return job_info->surface; +} + +static gboolean +new_selection_surface_needed (EvPixbufCache *pixbuf_cache, +			      CacheJobInfo  *job_info, +			      gint           page, +			      gfloat         scale) +{ +	if (job_info->selection) { +		gint width, height; +		gint selection_width, selection_height; + +		_get_page_size_for_scale_and_rotation (pixbuf_cache->document, +						       page, scale, 0, +						       &width, &height); + +		selection_width = cairo_image_surface_get_width (job_info->selection); +		selection_height = cairo_image_surface_get_height (job_info->selection); +		 +		if (width != selection_width || height != selection_height) +			return TRUE; +	} else { +		if (job_info->points_set) +			return TRUE; +	} +	 +	return FALSE; +} + +static void +clear_selection_if_needed (EvPixbufCache *pixbuf_cache, +			   CacheJobInfo  *job_info, +			   gint           page, +			   gfloat         scale) +{ +	if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) { +		if (job_info->selection) +			cairo_surface_destroy (job_info->selection); +		job_info->selection = NULL; +		job_info->selection_points.x1 = -1; +	} +} + +/* Clears the cache of jobs and pixbufs. + */ +void +ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache) +{ +	int i; + +	if (!pixbuf_cache->job_list) +		return; + +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache); +		dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache); +	} + +	for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { +		dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache); +	} +} + + +void +ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache) +{ +	gint i; + +	if (!pixbuf_cache->job_list) +		return; + +	/* FIXME: doesn't update running jobs. */ +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		CacheJobInfo *job_info; + +		job_info = pixbuf_cache->prev_job + i; +		if (job_info->selection) { +			cairo_surface_destroy (job_info->selection); +			job_info->selection = NULL; +		} + +		job_info = pixbuf_cache->next_job + i; +		if (job_info->selection) { +			cairo_surface_destroy (job_info->selection); +			job_info->selection = NULL; +		} +	} + +	for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { +		CacheJobInfo *job_info; + +		job_info = pixbuf_cache->job_list + i; +		if (job_info->selection) { +			cairo_surface_destroy (job_info->selection); +			job_info->selection = NULL; +		} +	} +} + +cairo_surface_t * +ev_pixbuf_cache_get_selection_surface (EvPixbufCache   *pixbuf_cache, +				       gint             page, +				       gfloat           scale, +				       cairo_region_t **region) +{ +	CacheJobInfo *job_info; + +	/* the document does not implement the selection interface */ +	if (!EV_IS_SELECTION (pixbuf_cache->document)) +		return NULL; + +	job_info = find_job_cache (pixbuf_cache, page); +	if (job_info == NULL) +		return NULL; + +	/* No selection on this page */ +	if (!job_info->points_set) +		return NULL; + +	/* If we have a running job, we just return what we have under the +	 * assumption that it'll be updated later and we can scale it as need +	 * be */ +	if (job_info->job && EV_JOB_RENDER (job_info->job)->include_selection) +		return job_info->selection; + +	/* Now, lets see if we need to resize the image.  If we do, we clear the +	 * old one. */ +	clear_selection_if_needed (pixbuf_cache, job_info, page, scale); + +	/* Finally, we see if the two scales are the same, and get a new pixbuf +	 * if needed.  We do this synchronously for now.  At some point, we +	 * _should_ be able to get rid of the doc_mutex, so the synchronicity +	 * doesn't kill us.  Rendering a few glyphs should really be fast. +	 */ +	if (ev_rect_cmp (&(job_info->target_points), &(job_info->selection_points))) { +		EvRectangle *old_points; +		GdkColor *text, *base; +		EvRenderContext *rc; +		EvPage *ev_page; + +		/* we need to get a new selection pixbuf */ +		ev_document_doc_mutex_lock (); +		if (job_info->selection_points.x1 < 0) { +			g_assert (job_info->selection == NULL); +			old_points = NULL; +		} else { +			g_assert (job_info->selection != NULL); +			old_points = &(job_info->selection_points); +		} + +		ev_page = ev_document_get_page (pixbuf_cache->document, page); +		rc = ev_render_context_new (ev_page, 0, scale); +		g_object_unref (ev_page); + +		if (job_info->selection_region) +			cairo_region_destroy (job_info->selection_region); +		job_info->selection_region = +			ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document), +							   rc, job_info->selection_style, +							   &(job_info->target_points)); + +		gtk_widget_ensure_style (pixbuf_cache->view); + +		get_selection_colors (pixbuf_cache->view, &text, &base); + +		ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document), +					       rc, &(job_info->selection), +					       &(job_info->target_points), +					       old_points, +					       job_info->selection_style, +					       text, base); +		job_info->selection_points = job_info->target_points; +		g_object_unref (rc); +		ev_document_doc_mutex_unlock (); +	} +	if (region) +		*region = job_info->selection_region; +	return job_info->selection; +} + +static void +update_job_selection (CacheJobInfo    *job_info, +		      EvViewSelection *selection) +{ +	job_info->points_set = TRUE;		 +	job_info->target_points = selection->rect; +	job_info->selection_style = selection->style; +} + +static void +clear_job_selection (CacheJobInfo *job_info) +{ +	job_info->points_set = FALSE; +	job_info->selection_points.x1 = -1; + +	if (job_info->selection) { +		cairo_surface_destroy (job_info->selection); +		job_info->selection = NULL; +	} +} + +/* This function will reset the selection on pages that no longer have them, and + * will update the target_selection on those that need it.  It will _not_ free + * the previous selection_list -- that's up to caller to do. + */ +void +ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache, +				    GList         *selection_list) +{ +	EvViewSelection *selection; +	GList *list = selection_list; +	int page; +	int i; + +	g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache)); + +	if (!EV_IS_SELECTION (pixbuf_cache->document)) +		return; + +	/* We check each area to see what needs updating, and what needs freeing; */ +	page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size; +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		if (page < 0) { +			page ++; +			continue; +		} + +		selection = NULL; +		while (list) { +			if (((EvViewSelection *)list->data)->page == page) { +				selection = list->data; +				break; +			} else if (((EvViewSelection *)list->data)->page > page)  +				break; +			list = list->next; +		} + +		if (selection) +			update_job_selection (pixbuf_cache->prev_job + i, selection); +		else +			clear_job_selection (pixbuf_cache->prev_job + i); +		page ++; +	} + +	page = pixbuf_cache->start_page; +	for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { +		selection = NULL; +		while (list) { +			if (((EvViewSelection *)list->data)->page == page) { +				selection = list->data; +				break; +			} else if (((EvViewSelection *)list->data)->page > page)  +				break; +			list = list->next; +		} + +		if (selection) +			update_job_selection (pixbuf_cache->job_list + i, selection); +		else +			clear_job_selection (pixbuf_cache->job_list + i); +		page ++; +	} + +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		if (page >= ev_document_get_n_pages (pixbuf_cache->document)) +			break; + +		selection = NULL; +		while (list) { +			if (((EvViewSelection *)list->data)->page == page) { +				selection = list->data; +				break; +			} else if (((EvViewSelection *)list->data)->page > page)  +				break; +			list = list->next; +		} + +		if (selection) +			update_job_selection (pixbuf_cache->next_job + i, selection); +		else +			clear_job_selection (pixbuf_cache->next_job + i); +		page ++; +	} +} + + +/* Returns what the pixbuf cache thinks is */ + +GList * +ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache) +{ +	EvViewSelection *selection; +	GList *retval = NULL; +	int page; +	int i; + +	g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL); + +	/* We check each area to see what needs updating, and what needs freeing; */ +	page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size; +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		if (page < 0) { +			page ++; +			continue; +		} + +		if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) { +			selection = g_new0 (EvViewSelection, 1); +			selection->page = page; +			selection->rect = pixbuf_cache->prev_job[i].selection_points; +			if (pixbuf_cache->prev_job[i].selection_region) +				selection->covered_region = cairo_region_reference (pixbuf_cache->prev_job[i].selection_region); +			retval = g_list_append (retval, selection); +		} +		 +		page ++; +	} + +	page = pixbuf_cache->start_page; +	for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { +		if (pixbuf_cache->job_list[i].selection_points.x1 != -1) { +			selection = g_new0 (EvViewSelection, 1); +			selection->page = page; +			selection->rect = pixbuf_cache->job_list[i].selection_points; +			if (pixbuf_cache->job_list[i].selection_region) +				selection->covered_region = cairo_region_reference (pixbuf_cache->job_list[i].selection_region); +			retval = g_list_append (retval, selection); +		} +		 +		page ++; +	} + +	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { +		if (page >= ev_document_get_n_pages (pixbuf_cache->document)) +			break; + +		if (pixbuf_cache->next_job[i].selection_points.x1 != -1) { +			selection = g_new0 (EvViewSelection, 1); +			selection->page = page; +			selection->rect = pixbuf_cache->next_job[i].selection_points; +			if (pixbuf_cache->next_job[i].selection_region) +				selection->covered_region = cairo_region_reference (pixbuf_cache->next_job[i].selection_region); +			retval = g_list_append (retval, selection); +		} +		 +		page ++; +	} + +	return retval; +} + +void +ev_pixbuf_cache_reload_page (EvPixbufCache  *pixbuf_cache, +			     cairo_region_t *region, +			     gint            page, +			     gint            rotation, +			     gdouble         scale) +{ +	CacheJobInfo *job_info; +        gint width, height; + +	job_info = find_job_cache (pixbuf_cache, page); +	if (job_info == NULL) +		return; + +	_get_page_size_for_scale_and_rotation (pixbuf_cache->document, +					       page, scale, rotation, +					       &width, &height); +        add_job (pixbuf_cache, job_info, region, +		 width, height, page, rotation, scale, +		 EV_JOB_PRIORITY_URGENT); +} + + diff --git a/libview/ev-pixbuf-cache.h b/libview/ev-pixbuf-cache.h new file mode 100644 index 00000000..67c2517e --- /dev/null +++ b/libview/ev-pixbuf-cache.h @@ -0,0 +1,89 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2005 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/* This File is basically an extention of EvView, and is out here just to keep + * ev-view.c from exploding. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef __EV_PIXBUF_CACHE_H__ +#define __EV_PIXBUF_CACHE_H__ + +#include <gtk/gtk.h> + +#include <evince-document.h> +#include <evince-view.h> + +G_BEGIN_DECLS + +#define EV_TYPE_PIXBUF_CACHE            (ev_pixbuf_cache_get_type ()) +#define EV_PIXBUF_CACHE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_PIXBUF_CACHE, EvPixbufCache)) +#define EV_IS_PIXBUF_CACHE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_PIXBUF_CACHE)) + + + +/* The coordinates in the rect here are at scale == 1.0, so that we can ignore + * resizings.  There is one per page, maximum. + */ +typedef struct { +	int page; +	EvRectangle rect; +	cairo_region_t *covered_region; +	EvSelectionStyle style; +} EvViewSelection; + +typedef struct _EvPixbufCache       EvPixbufCache; +typedef struct _EvPixbufCacheClass  EvPixbufCacheClass; + +GType          ev_pixbuf_cache_get_type             (void) G_GNUC_CONST; +EvPixbufCache *ev_pixbuf_cache_new                  (GtkWidget     *view, +						     EvDocumentModel *model, +						     gsize            max_size); +void           ev_pixbuf_cache_set_max_size         (EvPixbufCache   *pixbuf_cache, +						     gsize            max_size); +void           ev_pixbuf_cache_set_page_range       (EvPixbufCache *pixbuf_cache, +						     gint           start_page, +						     gint           end_page, +						     GList          *selection_list); +cairo_surface_t *ev_pixbuf_cache_get_surface        (EvPixbufCache *pixbuf_cache, +						     gint           page); +void           ev_pixbuf_cache_clear                (EvPixbufCache *pixbuf_cache); +void           ev_pixbuf_cache_style_changed        (EvPixbufCache *pixbuf_cache); +void           ev_pixbuf_cache_reload_page 	    (EvPixbufCache  *pixbuf_cache, +						     cairo_region_t *region, +                    				     gint            page, +			                             gint            rotation, +						     gdouble         scale); +void           ev_pixbuf_cache_set_inverted_colors  (EvPixbufCache *pixbuf_cache, +						     gboolean       inverted_colors); +/* Selection */ +cairo_surface_t *ev_pixbuf_cache_get_selection_surface (EvPixbufCache   *pixbuf_cache, +							gint             page, +							gfloat           scale, +							cairo_region_t **region); +void           ev_pixbuf_cache_set_selection_list   (EvPixbufCache *pixbuf_cache, +						     GList         *selection_list); +GList         *ev_pixbuf_cache_get_selection_list   (EvPixbufCache *pixbuf_cache); + +G_END_DECLS + +#endif /* __EV_PIXBUF_CACHE_H__ */ diff --git a/libview/ev-print-operation.c b/libview/ev-print-operation.c new file mode 100644 index 00000000..d913c7be --- /dev/null +++ b/libview/ev-print-operation.c @@ -0,0 +1,2028 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2008 Carlos Garcia Campos <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <config.h> + +#include "ev-print-operation.h" + +#if GTKUNIXPRINT_ENABLED +#include <gtk/gtkunixprint.h> +#endif +#include <glib/gi18n.h> +#include <glib/gstdio.h> +#include <unistd.h> + +#include "ev-jobs.h" +#include "ev-job-scheduler.h" + +enum { +	PROP_0, +	PROP_DOCUMENT +}; + +enum { +	DONE, +	BEGIN_PRINT, +	STATUS_CHANGED, +	LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL] = { 0 }; + +struct _EvPrintOperation { +	GObject parent; + +	EvDocument *document; + +	/* Progress */ +	gchar      *status; +	gdouble     progress; +}; + +struct _EvPrintOperationClass { +	GObjectClass parent_class; + +	void              (* set_current_page)       (EvPrintOperation       *op, +						      gint                    current_page); +	void              (* set_print_settings)     (EvPrintOperation       *op, +						      GtkPrintSettings       *print_settings); +	GtkPrintSettings *(* get_print_settings)     (EvPrintOperation       *op); +	void              (* set_default_page_setup) (EvPrintOperation       *op, +						      GtkPageSetup           *page_setup); +	GtkPageSetup     *(* get_default_page_setup) (EvPrintOperation       *op); +	void              (* set_job_name)           (EvPrintOperation       *op, +						      const gchar            *job_name); +	const gchar      *(* get_job_name)           (EvPrintOperation       *op); +	void              (* run)                    (EvPrintOperation       *op, +						      GtkWindow              *parent); +	void              (* cancel)                 (EvPrintOperation       *op); +	void              (* get_error)              (EvPrintOperation       *op, +						      GError                **error); +	void              (* set_embed_page_setup)   (EvPrintOperation       *op, +						      gboolean                embed); +	gboolean          (* get_embed_page_setup)   (EvPrintOperation       *op); + +	/* signals */ +	void              (* done)                   (EvPrintOperation       *op, +						      GtkPrintOperationResult result); +	void              (* begin_print)            (EvPrintOperation       *op); +	void              (* status_changed)         (EvPrintOperation       *op); +}; + +G_DEFINE_ABSTRACT_TYPE (EvPrintOperation, ev_print_operation, G_TYPE_OBJECT) + +static void +ev_print_operation_finalize (GObject *object) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (object); + +	if (op->document) { +		g_object_unref (op->document); +		op->document = NULL; +	} + +	if (op->status) { +		g_free (op->status); +		op->status = NULL; +	} + +	(* G_OBJECT_CLASS (ev_print_operation_parent_class)->finalize) (object); +} + +static void +ev_print_operation_set_property (GObject      *object, +				 guint         prop_id, +				 const GValue *value, +				 GParamSpec   *pspec) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (object); + +	switch (prop_id) { +	case PROP_DOCUMENT: +		op->document = g_value_dup_object (value); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static void +ev_print_operation_init (EvPrintOperation *op) +{ +} + +static void +ev_print_operation_class_init (EvPrintOperationClass *klass) +{ +	GObjectClass *g_object_class = G_OBJECT_CLASS (klass); + +	g_object_class->set_property = ev_print_operation_set_property; +	g_object_class->finalize = ev_print_operation_finalize; + +	g_object_class_install_property (g_object_class, +					 PROP_DOCUMENT, +					 g_param_spec_object ("document", +							      "Document", +							      "The document to print", +							      EV_TYPE_DOCUMENT, +							      G_PARAM_WRITABLE | +							      G_PARAM_CONSTRUCT_ONLY)); +	signals[DONE] = +		g_signal_new ("done", +			      G_TYPE_FROM_CLASS (g_object_class), +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvPrintOperationClass, done), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__ENUM, +			      G_TYPE_NONE, 1, +			      GTK_TYPE_PRINT_OPERATION_RESULT); +	signals[BEGIN_PRINT] = +		g_signal_new ("begin_print", +			      G_TYPE_FROM_CLASS (g_object_class), +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvPrintOperationClass, begin_print), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__VOID, +			      G_TYPE_NONE, 0); +	signals[STATUS_CHANGED] = +		g_signal_new ("status_changed", +			      G_TYPE_FROM_CLASS (g_object_class), +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvPrintOperationClass, status_changed), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__VOID, +			      G_TYPE_NONE, 0); +} + +/* Public methods */ +void +ev_print_operation_set_current_page (EvPrintOperation *op, +				     gint              current_page) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_if_fail (EV_IS_PRINT_OPERATION (op)); +	g_return_if_fail (current_page >= 0); + +	class->set_current_page (op, current_page); +} + +void +ev_print_operation_set_print_settings (EvPrintOperation *op, +				       GtkPrintSettings *print_settings) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_if_fail (EV_IS_PRINT_OPERATION (op)); +	g_return_if_fail (GTK_IS_PRINT_SETTINGS (print_settings)); + +	class->set_print_settings (op, print_settings); +} + +GtkPrintSettings * +ev_print_operation_get_print_settings (EvPrintOperation *op) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), NULL); + +	return class->get_print_settings (op); +} + +void +ev_print_operation_set_default_page_setup (EvPrintOperation *op, +					   GtkPageSetup     *page_setup) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_if_fail (EV_IS_PRINT_OPERATION (op)); +	g_return_if_fail (GTK_IS_PAGE_SETUP (page_setup)); + +	class->set_default_page_setup (op, page_setup); +} + +GtkPageSetup * +ev_print_operation_get_default_page_setup (EvPrintOperation *op) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), NULL); + +	return class->get_default_page_setup (op); +} + +void +ev_print_operation_set_job_name (EvPrintOperation *op, +				 const gchar      *job_name) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_if_fail (EV_IS_PRINT_OPERATION (op)); +	g_return_if_fail (job_name != NULL); + +	class->set_job_name (op, job_name); +} + +const gchar * +ev_print_operation_get_job_name (EvPrintOperation *op) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), NULL); + +	return class->get_job_name (op); +} + +void +ev_print_operation_run (EvPrintOperation *op, +			GtkWindow        *parent) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_if_fail (EV_IS_PRINT_OPERATION (op)); + +	class->run (op, parent); +} + +void +ev_print_operation_cancel (EvPrintOperation *op) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_if_fail (EV_IS_PRINT_OPERATION (op)); + +	class->cancel (op); +} + +void +ev_print_operation_get_error (EvPrintOperation *op, +			      GError          **error) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_if_fail (EV_IS_PRINT_OPERATION (op)); + +	class->get_error (op, error); +} + +void +ev_print_operation_set_embed_page_setup (EvPrintOperation *op, +					 gboolean          embed) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_if_fail (EV_IS_PRINT_OPERATION (op)); + +	class->set_embed_page_setup (op, embed); +} + +gboolean +ev_print_operation_get_embed_page_setup (EvPrintOperation *op) +{ +	EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op); + +	g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), FALSE); + +	return class->get_embed_page_setup (op); +} + +const gchar * +ev_print_operation_get_status (EvPrintOperation *op) +{ +	g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), NULL); + +	return op->status ? op->status : ""; +} + +gdouble +ev_print_operation_get_progress (EvPrintOperation *op) +{ +	g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), 0.0); + +	return op->progress; +} + +static void +ev_print_operation_update_status (EvPrintOperation *op, +				  gint              page, +				  gint              n_pages, +				  gdouble           progress) +{ +	if (op->status && op->progress == progress) +		return; + +	g_free (op->status); + +	if (page == -1) { +		/* Initial state */ +		op->status = g_strdup (_("Preparing to printā¦")); +	} else if (page > n_pages) { +		op->status = g_strdup (_("Finishingā¦")); +	} else { +		op->status = g_strdup_printf (_("Printing page %d of %dā¦"), +					      page, n_pages); +	} + +	op->progress = MIN (1.0, progress); + +	g_signal_emit (op, signals[STATUS_CHANGED], 0); +} + +#if GTKUNIXPRINT_ENABLED + +/* Export interface */ +#define EV_TYPE_PRINT_OPERATION_EXPORT         (ev_print_operation_export_get_type()) +#define EV_PRINT_OPERATION_EXPORT(object)      (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_PRINT_OPERATION_EXPORT, EvPrintOperationExport)) +#define EV_PRINT_OPERATION_EXPORT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_PRINT_OPERATION_EXPORT, EvPrintOperationExportClass)) +#define EV_IS_PRINT_OPERATION_EXPORT(object)   (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_PRINT_OPERATION_EXPORT)) + +typedef struct _EvPrintOperationExport      EvPrintOperationExport; +typedef struct _EvPrintOperationExportClass EvPrintOperationExportClass; + +static GType    ev_print_operation_export_get_type (void) G_GNUC_CONST; + +static void     ev_print_operation_export_begin    (EvPrintOperationExport *export); +static gboolean export_print_page                  (EvPrintOperationExport *export); +static void     export_cancel                      (EvPrintOperationExport *export); + +struct _EvPrintOperationExport { +	EvPrintOperation parent; + +	GtkWindow *parent_window; +	EvJob *job_export; +	GError *error; + +	gboolean print_preview; +	gint n_pages; +	gint current_page; +	GtkPrinter *printer; +	GtkPageSetup *page_setup; +	GtkPrintSettings *print_settings; +	GtkPageSet page_set; +	gint copies; +	guint collate     : 1; +	guint reverse     : 1; +	gint pages_per_sheet; +	gint fd; +	gchar *temp_file; +	gchar *job_name; +	gboolean embed_page_setup; + +	guint idle_id; +	 +	/* Context */ +	EvFileExporterContext fc; +	gint n_pages_to_print; +	gint uncollated_copies; +	gint collated_copies; +	gint uncollated, collated, total; + +	gint sheet, page_count; + +	gint range, n_ranges; +	GtkPageRange *ranges; +	GtkPageRange one_range; + +	gint page, start, end, inc; +}; + +struct _EvPrintOperationExportClass { +	EvPrintOperationClass parent_class; +}; + +G_DEFINE_TYPE (EvPrintOperationExport, ev_print_operation_export, EV_TYPE_PRINT_OPERATION) + +/* Internal print queue */ +static GHashTable *print_queue = NULL; + +static void +queue_free (GQueue *queue) +{ +	g_queue_foreach (queue, (GFunc)g_object_unref, NULL); +	g_queue_free (queue); +} + +static void +ev_print_queue_init (void) +{ +	if (G_UNLIKELY (print_queue == NULL)) { +		print_queue = g_hash_table_new_full (g_direct_hash, +						     g_direct_equal, +						     NULL, +						     (GDestroyNotify)queue_free); +	} +} + +static void +remove_document_queue (gpointer data, +		       GObject *document) +{ +	if (print_queue) +		g_hash_table_remove (print_queue, document); +} + +static gboolean +ev_print_queue_is_empty (EvDocument *document) +{ +	GQueue *queue; + +	queue = g_hash_table_lookup (print_queue, document); +	return (!queue || g_queue_is_empty (queue)); +} + +static void +ev_print_queue_push (EvPrintOperation *op) +{ +	GQueue *queue; + +	queue = g_hash_table_lookup (print_queue, op->document); +	if (!queue) { +		queue = g_queue_new (); +		g_hash_table_insert (print_queue, +				     op->document, +				     queue); +		g_object_weak_ref (G_OBJECT (op->document), +				   (GWeakNotify)remove_document_queue, +				   NULL); +	} + +	g_queue_push_head (queue, g_object_ref (op)); +} + +static EvPrintOperation * +ev_print_queue_pop (EvDocument *document) +{ +	EvPrintOperation *op; +	GQueue           *queue; + +	queue = g_hash_table_lookup (print_queue, document); +	if (!queue || g_queue_is_empty (queue)) +		return NULL; +	 +	op = g_queue_pop_tail (queue); +	g_object_unref (op); + +	return op; +} + +static EvPrintOperation * +ev_print_queue_peek (EvDocument *document) +{ +	GQueue *queue; + +	queue = g_hash_table_lookup (print_queue, document); +	if (!queue || g_queue_is_empty (queue)) +		return NULL; + +	return g_queue_peek_tail (queue); +} + +static void +ev_print_operation_export_set_current_page (EvPrintOperation *op, +					    gint              current_page) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	g_return_if_fail (current_page < export->n_pages); +	 +	export->current_page = current_page; +} + +static void +ev_print_operation_export_set_print_settings (EvPrintOperation *op, +					      GtkPrintSettings *print_settings) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	if (print_settings == export->print_settings) +		return; + +	g_object_ref (print_settings); +	if (export->print_settings) +		g_object_unref (export->print_settings); +	export->print_settings = print_settings; +} + +static GtkPrintSettings * +ev_print_operation_export_get_print_settings (EvPrintOperation *op) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	return export->print_settings; +} + +static void +ev_print_operation_export_set_default_page_setup (EvPrintOperation *op, +						  GtkPageSetup     *page_setup) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	if (page_setup == export->page_setup) +		return; + +	g_object_ref (page_setup); +	if (export->page_setup) +		g_object_unref (export->page_setup); +	export->page_setup = page_setup; +} + +static GtkPageSetup * +ev_print_operation_export_get_default_page_setup (EvPrintOperation *op) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	return export->page_setup; +} + +static void +ev_print_operation_export_set_job_name (EvPrintOperation *op, +					const gchar      *job_name) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	g_free (export->job_name); +	export->job_name = g_strdup (job_name); +} + +static const gchar * +ev_print_operation_export_get_job_name (EvPrintOperation *op) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	return export->job_name; +} + +static void +ev_print_operation_export_set_printer (EvPrintOperationExport *export, +				       GtkPrinter             *printer) +{ +	if (printer == export->printer) +		return; + +	g_object_ref (printer); +	if (export->printer) +		g_object_unref (export->printer); +	export->printer = printer; +} + +static void +find_range (EvPrintOperationExport *export) +{ +	GtkPageRange *range; + +	range = &export->ranges[export->range]; + +	if (export->inc < 0) { +		export->start = range->end; +		export->end = range->start - 1; +	} else { +		export->start = range->start; +		export->end = range->end + 1; +	} +} + +static gboolean +clamp_ranges (EvPrintOperationExport *export) +{ +	gint num_of_correct_ranges = 0; +	gint n_pages_to_print = 0; +	gint i; +	gboolean null_flag = FALSE; + +	for (i = 0; i < export->n_ranges; i++) { +		gint n_pages; +		 +		if ((export->ranges[i].start >= 0) && +		    (export->ranges[i].start < export->n_pages) && +		    (export->ranges[i].end >= 0) && +		    (export->ranges[i].end < export->n_pages)) { +			export->ranges[num_of_correct_ranges] = export->ranges[i]; +			num_of_correct_ranges++; +		} else if ((export->ranges[i].start >= 0) && +			   (export->ranges[i].start < export->n_pages) && +			   (export->ranges[i].end >= export->n_pages)) { +			export->ranges[i].end = export->n_pages - 1; +			export->ranges[num_of_correct_ranges] = export->ranges[i]; +			num_of_correct_ranges++; +		} else if ((export->ranges[i].end >= 0) && +			   (export->ranges[i].end < export->n_pages) && +			   (export->ranges[i].start < 0)) { +			export->ranges[i].start = 0; +			export->ranges[num_of_correct_ranges] = export->ranges[i]; +			num_of_correct_ranges++; +		} +		 +		n_pages = export->ranges[i].end - export->ranges[i].start + 1; +		if (export->page_set == GTK_PAGE_SET_ALL) { +			n_pages_to_print += n_pages; +		} else if (n_pages % 2 == 0) { +			n_pages_to_print += n_pages / 2; +		} else if (export->page_set == GTK_PAGE_SET_EVEN) { +			if (n_pages==1 && export->ranges[i].start % 2 == 0) +				null_flag = TRUE; +			else  +				n_pages_to_print += export->ranges[i].start % 2 == 0 ? +				n_pages / 2 : (n_pages / 2) + 1; +		} else if (export->page_set == GTK_PAGE_SET_ODD) { +			if (n_pages==1 && export->ranges[i].start % 2 != 0)  +				null_flag = TRUE; +			else  +				n_pages_to_print += export->ranges[i].start % 2 == 0 ? +				(n_pages / 2) + 1 : n_pages / 2; +		} +	} + +	if (null_flag && !n_pages_to_print) { +		return FALSE; +	} else { +		export->n_ranges = num_of_correct_ranges; +		export->n_pages_to_print = n_pages_to_print; +		return TRUE; +	} +} + +static void +get_first_and_last_page (EvPrintOperationExport *export, +			 gint                   *first, +			 gint                   *last) +{ +	gint i; +	gint first_page = G_MAXINT; +	gint last_page = G_MININT; +	gint max_page = export->n_pages - 1; + +	if (export->n_ranges == 0) { +		*first = 0; +		*last = max_page; + +		return; +	} + +	for (i = 0; i < export->n_ranges; i++) { +		if (export->ranges[i].start < first_page) +			first_page = export->ranges[i].start; +		if (export->ranges[i].end > last_page) +			last_page = export->ranges[i].end; +	} + +	*first = MAX (0, first_page); +	*last = MIN (max_page, last_page); +} + +static gboolean +export_print_inc_page (EvPrintOperationExport *export) +{ +	do { +		export->page += export->inc; + +		/* note: when NOT collating, page_count is increased in export_print_page */ +		if (export->collate) { +			export->page_count++; +			export->sheet = 1 + (export->page_count - 1) / export->pages_per_sheet; +		} + +		if (export->page == export->end) { +			export->range += export->inc; +			if (export->range == -1 || export->range == export->n_ranges) { +				export->uncollated++; + +				/* when printing multiple collated copies & multiple pages per sheet we want to +				 * prevent the next copy bleeding into the last sheet of the previous one +				 * we've reached the last range to be printed now, so this is the time to do it */ +				if (export->pages_per_sheet > 1 && export->collate == 1 && +				    (export->page_count - 1) % export->pages_per_sheet != 0) { + +					EvPrintOperation *op = EV_PRINT_OPERATION (export); +					ev_document_doc_mutex_lock (); + +					/* keep track of all blanks but only actualise those +					 * which are in the current odd / even sheet set */ + +					export->page_count += export->pages_per_sheet - (export->page_count - 1) % export->pages_per_sheet; +					if (export->page_set == GTK_PAGE_SET_ALL || +						(export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 == 0) || +						(export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 == 1) ) { +						ev_file_exporter_end_page (EV_FILE_EXPORTER (op->document)); +					} +					ev_document_doc_mutex_unlock (); +					export->sheet = 1 + (export->page_count - 1) / export->pages_per_sheet; +				} + +				if (export->uncollated == export->uncollated_copies) +					return FALSE; + +				export->range = export->inc < 0 ? export->n_ranges - 1 : 0; +			} +			find_range (export); +			export->page = export->start; +		} + +	/* in/decrement the page number until we reach the first page on the next EVEN or ODD sheet +	 * if we're not collating, we have to make sure that this is done only once! */ +	} while ( export->collate == 1 && +		((export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 == 1) || +		(export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 == 0))); + +	return TRUE; +} + +static void +ev_print_operation_export_clear_temp_file (EvPrintOperationExport *export) +{ +	if (!export->temp_file) +		return; + +	g_unlink (export->temp_file); +	g_free (export->temp_file); +	export->temp_file = NULL; +} + +static void +ev_print_operation_export_run_next (EvPrintOperationExport *export) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (export); +	EvPrintOperation *next; +	EvDocument       *document; + +	/* First pop the current job */ +	document = op->document; +	ev_print_queue_pop (document); +	 +	next = ev_print_queue_peek (document); +	if (next) +		ev_print_operation_export_begin (EV_PRINT_OPERATION_EXPORT (next)); +} + +static void +gtk_print_job_finished (GtkPrintJob            *print_job, +			EvPrintOperationExport *export, +			GError                 *error) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (export); + +	if (error) { +		g_set_error_literal (&export->error, +				     GTK_PRINT_ERROR, +				     GTK_PRINT_ERROR_GENERAL, +				     error->message); +		g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_ERROR); +	} else { +		g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_APPLY); +	} + +	ev_print_operation_export_clear_temp_file (export); +	g_object_unref (print_job); + +	ev_print_operation_export_run_next (export); +} + +static void +export_print_done (EvPrintOperationExport *export) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (export); +	GtkPrintSettings *settings; +	EvFileExporterCapabilities capabilities; +	GError *error = NULL; + +	g_assert (export->temp_file != NULL); +	 +	/* Some printers take into account some print settings, +	 * and others don't. However we have exported the document +	 * to a ps or pdf file according to such print settings. So, +	 * we want to send the exported file to printer with those +	 * settings set to default values. +	 */ +	settings = gtk_print_settings_copy (export->print_settings); +	capabilities = ev_file_exporter_get_capabilities (EV_FILE_EXPORTER (op->document)); + +	gtk_print_settings_set_page_ranges (settings, NULL, 0); +	gtk_print_settings_set_print_pages (settings, GTK_PRINT_PAGES_ALL); +	if (capabilities & EV_FILE_EXPORTER_CAN_COPIES) +		gtk_print_settings_set_n_copies (settings, 1); +	if (capabilities & EV_FILE_EXPORTER_CAN_PAGE_SET) +		gtk_print_settings_set_page_set (settings, GTK_PAGE_SET_ALL); +	if (capabilities & EV_FILE_EXPORTER_CAN_SCALE) +		gtk_print_settings_set_scale (settings, 1.0); +	if (capabilities & EV_FILE_EXPORTER_CAN_COLLATE) +		gtk_print_settings_set_collate (settings, FALSE); +	if (capabilities & EV_FILE_EXPORTER_CAN_REVERSE) +		gtk_print_settings_set_reverse (settings, FALSE); +	if (capabilities & EV_FILE_EXPORTER_CAN_NUMBER_UP) { +		gtk_print_settings_set_number_up (settings, 1); +		gtk_print_settings_set_int (settings, "cups-"GTK_PRINT_SETTINGS_NUMBER_UP, 1); +	} + +	if (export->print_preview) { +		GKeyFile *key_file; +		gchar    *data = NULL; +		gsize     data_len; +		gchar    *print_settings_file = NULL; + +		key_file = g_key_file_new (); + +		gtk_print_settings_to_key_file (settings, key_file, NULL); +		gtk_page_setup_to_key_file (export->page_setup, key_file, NULL); +		g_key_file_set_string (key_file, "Print Job", "title", export->job_name); + +		data = g_key_file_to_data (key_file, &data_len, &error); +		if (data) { +			gint fd; +			 +			fd = g_file_open_tmp ("print-settingsXXXXXX", &print_settings_file, &error); +			if (!error) +				g_file_set_contents (print_settings_file, data, data_len, &error); +			close (fd); +			 +			g_free (data); +		} + +		g_key_file_free (key_file); + +		if (!error) { +			gint    argc; +			gchar **argv; +			gchar  *cmd; +			gchar  *quoted_filename; +			gchar  *quoted_settings_filename; + +			quoted_filename = g_shell_quote (export->temp_file); +			quoted_settings_filename = g_shell_quote (print_settings_file); +			cmd = g_strdup_printf ("evince-previewer --unlink-tempfile --print-settings %s %s", +					       quoted_settings_filename, quoted_filename); + +			g_shell_parse_argv (cmd, &argc, &argv, &error); + +			g_free (quoted_filename); +			g_free (quoted_settings_filename); +			g_free (cmd); + +			if (!error) { +				gdk_spawn_on_screen (gtk_window_get_screen (export->parent_window), +						     NULL, argv, NULL, +						     G_SPAWN_SEARCH_PATH, +						     NULL, NULL, NULL, +						     &error); +			} + +			g_strfreev (argv); +		} + +		if (error) { +			if (print_settings_file) +				g_unlink (print_settings_file); +			g_free (print_settings_file); +		} else { +			g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_APPLY); +			/* temp_file will be deleted by the previewer */ + +			ev_print_operation_export_run_next (export); +		} +	} else { +		GtkPrintJob *job; +		 +		job = gtk_print_job_new (export->job_name, +					 export->printer, +					 settings, +					 export->page_setup); +		gtk_print_job_set_source_file (job, export->temp_file, &error); +		if (!error){ +			gtk_print_job_send (job, +					    (GtkPrintJobCompleteFunc)gtk_print_job_finished, +					    g_object_ref (export), +					    (GDestroyNotify)g_object_unref); +		} +	} +	g_object_unref (settings); + +	if (error) { +		g_set_error_literal (&export->error, +				     GTK_PRINT_ERROR, +				     GTK_PRINT_ERROR_GENERAL, +				     error->message); +		g_error_free (error); +		ev_print_operation_export_clear_temp_file (export); +		g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_ERROR); + +		ev_print_operation_export_run_next (export); +	} +} + +static void +export_print_page_idle_finished (EvPrintOperationExport *export) +{ +	export->idle_id = 0; +} + +static void +export_job_finished (EvJobExport            *job, +		     EvPrintOperationExport *export) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (export); + +	if (export->pages_per_sheet == 1 || +	   ( export->page_count % export->pages_per_sheet == 0 && +	   ( export->page_set == GTK_PAGE_SET_ALL || +	   ( export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 == 0 ) || +	   ( export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 == 1 ) ) ) ) { + +		ev_document_doc_mutex_lock (); +		ev_file_exporter_end_page (EV_FILE_EXPORTER (op->document)); +		ev_document_doc_mutex_unlock (); +	} + +	/* Reschedule */ +	export->idle_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE, +					   (GSourceFunc)export_print_page, +					   export, +					   (GDestroyNotify)export_print_page_idle_finished); +} + +static void +export_job_cancelled (EvJobExport            *job, +		      EvPrintOperationExport *export) +{ +	export_cancel (export); +} + +static void +export_cancel (EvPrintOperationExport *export) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (export); + +	if (export->idle_id > 0) +		g_source_remove (export->idle_id); +	export->idle_id = 0; + +	if (export->job_export) { +		g_signal_handlers_disconnect_by_func (export->job_export, +						      export_job_finished, +						      export); +		g_signal_handlers_disconnect_by_func (export->job_export, +						      export_job_cancelled, +						      export); +		g_object_unref (export->job_export); +		export->job_export = NULL; +	} +	 +	if (export->fd != -1) { +		close (export->fd); +		export->fd = -1; +	} + +	ev_print_operation_export_clear_temp_file (export); + +	g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_CANCEL); + +	ev_print_operation_export_run_next (export); +} + +static void +update_progress (EvPrintOperationExport *export) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (export); + +	ev_print_operation_update_status (op, export->total, +					  export->n_pages_to_print, +					  export->total / (gdouble)export->n_pages_to_print); +} + +static gboolean +export_print_page (EvPrintOperationExport *export) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (export); + +	if (!export->temp_file) +		return FALSE; /* cancelled */ + +	export->total++; +	export->collated++; + +	/* note: when collating, page_count is increased in export_print_inc_page */ +	if (!export->collate) { +		export->page_count++; +		export->sheet = 1 + (export->page_count - 1) / export->pages_per_sheet; +	} + +	if (export->collated == export->collated_copies) { +		export->collated = 0; +		if (!export_print_inc_page (export)) { +			ev_document_doc_mutex_lock (); +			ev_file_exporter_end (EV_FILE_EXPORTER (op->document)); +			ev_document_doc_mutex_unlock (); + +			close (export->fd); +			export->fd = -1; +			update_progress (export); +			export_print_done (export); + +			return FALSE; +		} +	} + +	/* we're not collating and we've reached a sheet from the wrong sheet set */ +	if (!export->collate && +	    ((export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 != 0) || +	    (export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 != 1))) { + +		do { +			export->page_count++; +			export->collated++; +			export->sheet = 1 + (export->page_count - 1) / export->pages_per_sheet; + +			if (export->collated == export->collated_copies) { +				export->collated = 0; + +				if (!export_print_inc_page (export)) { +					ev_document_doc_mutex_lock (); +					ev_file_exporter_end (EV_FILE_EXPORTER (op->document)); +					ev_document_doc_mutex_unlock (); + +					close (export->fd); +					export->fd = -1; + +					update_progress (export); + +					export_print_done (export); +					return FALSE; +				} +			} + +		} while ((export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 != 0) || +	    		  (export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 != 1)); + +	} + +	if (export->pages_per_sheet == 1 || +	    (export->page_count % export->pages_per_sheet == 1 && +	    (export->page_set == GTK_PAGE_SET_ALL || +	    (export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 == 0) || +	    (export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 == 1)))) { +		ev_document_doc_mutex_lock (); +		ev_file_exporter_begin_page (EV_FILE_EXPORTER (op->document)); +		ev_document_doc_mutex_unlock (); +	} + +	if (!export->job_export) { +		export->job_export = ev_job_export_new (op->document); +		g_signal_connect (export->job_export, "finished", +				  G_CALLBACK (export_job_finished), +				  (gpointer)export); +		g_signal_connect (export->job_export, "cancelled", +				  G_CALLBACK (export_job_cancelled), +				  (gpointer)export); +	} + +	ev_job_export_set_page (EV_JOB_EXPORT (export->job_export), export->page); +	ev_job_scheduler_push_job (export->job_export, EV_JOB_PRIORITY_NONE); + +	update_progress (export); +	 +	return FALSE; +} + +static void +ev_print_operation_export_begin (EvPrintOperationExport *export) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (export); + +	if (!export->temp_file) +		return; /* cancelled */ +	 +	ev_document_doc_mutex_lock (); +	ev_file_exporter_begin (EV_FILE_EXPORTER (op->document), &export->fc); +	ev_document_doc_mutex_unlock (); + +	export->idle_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE, +					   (GSourceFunc)export_print_page, +					   export, +					   (GDestroyNotify)export_print_page_idle_finished);	 +} + +static void +ev_print_operation_export_print_dialog_response_cb (GtkDialog              *dialog, +						    gint                    response, +						    EvPrintOperationExport *export) +{ +	GtkPrintPages     print_pages; +	GtkPrintSettings *print_settings; +	GtkPageSetup     *page_setup; +	GtkPrinter       *printer; +	gdouble           scale; +	gdouble           width; +	gdouble           height; +	gint              first_page; +	gint              last_page; +	const gchar      *file_format; +	gchar            *filename; +	GError           *error = NULL; +	EvPrintOperation *op = EV_PRINT_OPERATION (export); +	 +	if (response != GTK_RESPONSE_OK && +	    response != GTK_RESPONSE_APPLY) { +		gtk_widget_destroy (GTK_WIDGET (dialog)); +		g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_CANCEL); + +		return; +	} + +	export->print_preview = (response == GTK_RESPONSE_APPLY); +	 +	printer = gtk_print_unix_dialog_get_selected_printer (GTK_PRINT_UNIX_DIALOG (dialog)); +	ev_print_operation_export_set_printer (export, printer); + +	print_settings = gtk_print_unix_dialog_get_settings (GTK_PRINT_UNIX_DIALOG (dialog)); +	ev_print_operation_export_set_print_settings (op, print_settings); + +	page_setup = gtk_print_unix_dialog_get_page_setup (GTK_PRINT_UNIX_DIALOG (dialog)); +	ev_print_operation_export_set_default_page_setup (op, page_setup); + +	if (!gtk_printer_accepts_ps (export->printer)) { +		gtk_widget_destroy (GTK_WIDGET (dialog)); +		 +		g_set_error_literal (&export->error, +                                     GTK_PRINT_ERROR, +                                     GTK_PRINT_ERROR_GENERAL, +                                     _("Printing is not supported on this printer.")); +		g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_ERROR); +		 +		return; +	} + +	file_format = gtk_print_settings_get (print_settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT); +	 +	filename = g_strdup_printf ("evince_print.%s.XXXXXX", file_format != NULL ? file_format : ""); +	export->fd = g_file_open_tmp (filename, &export->temp_file, &error); +	g_free (filename); +	if (export->fd <= -1) { +		gtk_widget_destroy (GTK_WIDGET (dialog)); +		 +		g_set_error_literal (&export->error, +				     GTK_PRINT_ERROR, +				     GTK_PRINT_ERROR_GENERAL, +				     error->message); +		g_error_free (error); +		g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_ERROR); + +		return; +	} + +	export->current_page = gtk_print_unix_dialog_get_current_page (GTK_PRINT_UNIX_DIALOG (dialog)); +	export->page_set = gtk_print_settings_get_page_set (print_settings); +	print_pages = gtk_print_settings_get_print_pages (print_settings); +	 +	switch (print_pages) { +	case GTK_PRINT_PAGES_CURRENT: +		export->ranges = &export->one_range; +		 +		export->ranges[0].start = export->current_page; +		export->ranges[0].end = export->current_page; +		export->n_ranges = 1; +				 +		break; +	case GTK_PRINT_PAGES_RANGES: { +		gint i; +		 +		export->ranges = gtk_print_settings_get_page_ranges (print_settings, &export->n_ranges); +		for (i = 0; i < export->n_ranges; i++) +			if (export->ranges[i].end == -1 || export->ranges[i].end >= export->n_pages) +				export->ranges[i].end = export->n_pages - 1; +	} +		break; +	default: +		g_warning ("Unsupported print pages setting\n"); +	case GTK_PRINT_PAGES_ALL: +		export->ranges = &export->one_range; + +		export->ranges[0].start = 0; +		export->ranges[0].end = export->n_pages - 1; +		export->n_ranges = 1; +		 +		break; +	} + +	if (export->n_ranges < 1 || !clamp_ranges (export)) { +		GtkWidget *message_dialog; + +		message_dialog = gtk_message_dialog_new (GTK_WINDOW (dialog), +						 GTK_DIALOG_MODAL, +						 GTK_MESSAGE_WARNING, +						 GTK_BUTTONS_CLOSE, +						 "%s", _("Invalid page selection")); +		gtk_window_set_title (GTK_WINDOW (message_dialog), _("Warning")); +		gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (message_dialog), +							  "%s", _("Your print range selection does not include any pages")); +		g_signal_connect (message_dialog, "response", +				  G_CALLBACK (gtk_widget_destroy), +				  NULL); +		gtk_widget_show (message_dialog); + +		return; +	} else	ev_print_operation_update_status (op, -1, -1, 0.0); +  +	width = gtk_page_setup_get_paper_width (page_setup, GTK_UNIT_POINTS); +	height = gtk_page_setup_get_paper_height (page_setup, GTK_UNIT_POINTS); +	scale = gtk_print_settings_get_scale (print_settings) * 0.01; +	if (scale != 1.0) { +		width *= scale; +		height *= scale; +	} + +	export->pages_per_sheet = MAX (1, gtk_print_settings_get_number_up (print_settings)); +	 +	export->copies = gtk_print_settings_get_n_copies (print_settings); +	export->collate = gtk_print_settings_get_collate (print_settings); +	export->reverse = gtk_print_settings_get_reverse (print_settings); + +	if (export->collate) { +		export->uncollated_copies = export->copies; +		export->collated_copies = 1; +	} else { +		export->uncollated_copies = 1; +		export->collated_copies = export->copies; +	} + +	if (export->reverse) { +		export->range = export->n_ranges - 1; +		export->inc = -1; +	} else { +		export->range = 0; +		export->inc = 1; +	} +	find_range (export); + +	export->page = export->start - export->inc; +	export->collated = export->collated_copies - 1; + +	get_first_and_last_page (export, &first_page, &last_page); + +	export->fc.format = file_format && g_ascii_strcasecmp (file_format, "pdf") == 0 ? +		EV_FILE_FORMAT_PDF : EV_FILE_FORMAT_PS; +	export->fc.filename = export->temp_file; +	export->fc.first_page = MIN (first_page, last_page); +	export->fc.last_page = MAX (first_page, last_page); +	export->fc.paper_width = width; +	export->fc.paper_height = height; +	export->fc.duplex = FALSE; +	export->fc.pages_per_sheet = export->pages_per_sheet; + +	if (ev_print_queue_is_empty (op->document)) +		ev_print_operation_export_begin (export); + +	ev_print_queue_push (op); + +	g_signal_emit (op, signals[BEGIN_PRINT], 0); +	 +	gtk_widget_destroy (GTK_WIDGET (dialog)); +} + +static void +ev_print_operation_export_run (EvPrintOperation *op, +			       GtkWindow        *parent) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); +	GtkWidget              *dialog; +	GtkPrintCapabilities    capabilities; + +	ev_print_queue_init (); + +	export->parent_window = parent; +	export->error = NULL; +	 +	dialog = gtk_print_unix_dialog_new (_("Print"), parent); +	gtk_window_set_modal (GTK_WINDOW (dialog), TRUE); +	 +	capabilities = GTK_PRINT_CAPABILITY_PREVIEW | +		ev_file_exporter_get_capabilities (EV_FILE_EXPORTER (op->document)); +	gtk_print_unix_dialog_set_manual_capabilities (GTK_PRINT_UNIX_DIALOG (dialog), +						       capabilities); + +	gtk_print_unix_dialog_set_embed_page_setup (GTK_PRINT_UNIX_DIALOG (dialog), +						    export->embed_page_setup); + +	gtk_print_unix_dialog_set_current_page (GTK_PRINT_UNIX_DIALOG (dialog), +						export->current_page); +	 +	gtk_print_unix_dialog_set_settings (GTK_PRINT_UNIX_DIALOG (dialog), +					    export->print_settings); +	 +	if (export->page_setup) +		gtk_print_unix_dialog_set_page_setup (GTK_PRINT_UNIX_DIALOG (dialog), +						      export->page_setup); + +	g_signal_connect (dialog, "response", +			  G_CALLBACK (ev_print_operation_export_print_dialog_response_cb), +			  export); + +	gtk_window_present (GTK_WINDOW (dialog)); +} + +static void +ev_print_operation_export_cancel (EvPrintOperation *op) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	if (export->job_export && +	    !ev_job_is_finished (export->job_export)) { +		ev_job_cancel (export->job_export); +	} else { +		export_cancel (export); +	} +} + +static void +ev_print_operation_export_get_error (EvPrintOperation *op, +				     GError          **error) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	g_propagate_error (error, export->error); +	export->error = NULL; +} + +static void +ev_print_operation_export_set_embed_page_setup (EvPrintOperation *op, +						gboolean          embed) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	export->embed_page_setup = embed; +} + +static gboolean +ev_print_operation_export_get_embed_page_setup (EvPrintOperation *op) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op); + +	return export->embed_page_setup; +} + +static void +ev_print_operation_export_finalize (GObject *object) +{ +	EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (object); + +	if (export->idle_id > 0) { +		g_source_remove (export->idle_id); +		export->idle_id = 0; +	} + +	if (export->fd != -1) { +		close (export->fd); +		export->fd = -1; +	} +	 +	if (export->ranges) { +		if (export->ranges != &export->one_range) +			g_free (export->ranges); +		export->ranges = NULL; +		export->n_ranges = 0; +	} + +	if (export->temp_file) { +		g_free (export->temp_file); +		export->temp_file = NULL; +	} + +	if (export->job_name) { +		g_free (export->job_name); +		export->job_name = NULL; +	} + +	if (export->job_export) { +		if (!ev_job_is_finished (export->job_export)) +			ev_job_cancel (export->job_export); +		g_signal_handlers_disconnect_by_func (export->job_export, +						      export_job_finished, +						      export); +		g_signal_handlers_disconnect_by_func (export->job_export, +						      export_job_cancelled, +						      export); +		g_object_unref (export->job_export); +		export->job_export = NULL; +	} + +	if (export->error) { +		g_error_free (export->error); +		export->error = NULL; +	} + +	if (export->print_settings) { +		g_object_unref (export->print_settings); +		export->print_settings = NULL; +	} + +	if (export->page_setup) { +		g_object_unref (export->page_setup); +		export->page_setup = NULL; +	} + +	if (export->printer) { +		g_object_unref (export->printer); +		export->printer = NULL; +	} + +	(* G_OBJECT_CLASS (ev_print_operation_export_parent_class)->finalize) (object); +} + +static void +ev_print_operation_export_init (EvPrintOperationExport *export) +{ +	/* sheets are counted from 1 to be physical */ +	export->sheet = 1; +} + +static GObject * +ev_print_operation_export_constructor (GType                  type, +				       guint                  n_construct_properties, +				       GObjectConstructParam *construct_params) +{ +	GObject                *object; +	EvPrintOperationExport *export; +	EvPrintOperation       *op; +	 +	object = G_OBJECT_CLASS (ev_print_operation_export_parent_class)->constructor (type, +										       n_construct_properties, +										       construct_params); +	export = EV_PRINT_OPERATION_EXPORT (object); +	op = EV_PRINT_OPERATION (object); +	export->n_pages = ev_document_get_n_pages (op->document); + +	return object; +} + +static void +ev_print_operation_export_class_init (EvPrintOperationExportClass *klass) +{ +	GObjectClass          *g_object_class = G_OBJECT_CLASS (klass); +	EvPrintOperationClass *ev_print_op_class = EV_PRINT_OPERATION_CLASS (klass); + +	ev_print_op_class->set_current_page = ev_print_operation_export_set_current_page; +	ev_print_op_class->set_print_settings = ev_print_operation_export_set_print_settings; +	ev_print_op_class->get_print_settings = ev_print_operation_export_get_print_settings; +	ev_print_op_class->set_default_page_setup = ev_print_operation_export_set_default_page_setup; +	ev_print_op_class->get_default_page_setup = ev_print_operation_export_get_default_page_setup; +	ev_print_op_class->set_job_name = ev_print_operation_export_set_job_name; +	ev_print_op_class->get_job_name = ev_print_operation_export_get_job_name; +	ev_print_op_class->run = ev_print_operation_export_run; +	ev_print_op_class->cancel = ev_print_operation_export_cancel; +	ev_print_op_class->get_error = ev_print_operation_export_get_error; +	ev_print_op_class->set_embed_page_setup = ev_print_operation_export_set_embed_page_setup; +	ev_print_op_class->get_embed_page_setup = ev_print_operation_export_get_embed_page_setup; + +	g_object_class->constructor = ev_print_operation_export_constructor; +	g_object_class->finalize = ev_print_operation_export_finalize; +} + +#endif /* GTKUNIXPRINT_ENABLED */ + +/* Print to cairo interface */ +#define EV_TYPE_PRINT_OPERATION_PRINT         (ev_print_operation_print_get_type()) +#define EV_PRINT_OPERATION_PRINT(object)      (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_PRINT_OPERATION_PRINT, EvPrintOperationPrint)) +#define EV_PRINT_OPERATION_PRINT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_PRINT_OPERATION_PRINT, EvPrintOperationPrintClass)) +#define EV_IS_PRINT_OPERATION_PRINT(object)   (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_PRINT_OPERATION_PRINT)) + +typedef struct _EvPrintOperationPrint      EvPrintOperationPrint; +typedef struct _EvPrintOperationPrintClass EvPrintOperationPrintClass; + +static GType ev_print_operation_print_get_type (void) G_GNUC_CONST; + +typedef enum { +	EV_SCALE_NONE, +	EV_SCALE_SHRINK_TO_PRINTABLE_AREA, +	EV_SCALE_FIT_TO_PRINTABLE_AREA +} EvPrintScale; + +#define EV_PRINT_SETTING_PAGE_SCALE "evince-print-setting-page-scale" +#define EV_PRINT_SETTING_AUTOROTATE "evince-print-setting-page-autorotate" +#define EV_PRINT_SETTING_PAGE_SIZE  "evince-print-setting-page-size" + +struct _EvPrintOperationPrint { +	EvPrintOperation parent; + +	GtkPrintOperation *op; +	gint               n_pages_to_print; +	gint               total; +	EvJob             *job_print; +	gchar             *job_name; + +        /* Page handling tab */ +        GtkWidget   *scale_combo; +        EvPrintScale page_scale; +	GtkWidget   *autorotate_button; +	gboolean     autorotate; +	GtkWidget   *source_button; +	gboolean     use_source_size; +}; + +struct _EvPrintOperationPrintClass { +	EvPrintOperationClass parent_class; +}; + +G_DEFINE_TYPE (EvPrintOperationPrint, ev_print_operation_print, EV_TYPE_PRINT_OPERATION) + +static void +ev_print_operation_print_set_current_page (EvPrintOperation *op, +					   gint              current_page) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	gtk_print_operation_set_current_page (print->op, current_page); +} + +static void +ev_print_operation_print_set_print_settings (EvPrintOperation *op, +					     GtkPrintSettings *print_settings) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	gtk_print_operation_set_print_settings (print->op, print_settings); +} + +static GtkPrintSettings * +ev_print_operation_print_get_print_settings (EvPrintOperation *op) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	return gtk_print_operation_get_print_settings (print->op); +} + +static void +ev_print_operation_print_set_default_page_setup (EvPrintOperation *op, +						 GtkPageSetup     *page_setup) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	gtk_print_operation_set_default_page_setup (print->op, page_setup); +} + +static GtkPageSetup * +ev_print_operation_print_get_default_page_setup (EvPrintOperation *op) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	return gtk_print_operation_get_default_page_setup (print->op); +} + +static void +ev_print_operation_print_set_job_name (EvPrintOperation *op, +				       const gchar      *job_name) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	g_free (print->job_name); +	print->job_name = g_strdup (job_name); + +	gtk_print_operation_set_job_name (print->op, print->job_name); +} + +static const gchar * +ev_print_operation_print_get_job_name (EvPrintOperation *op) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	if (!print->job_name) { +		gchar *name; + +		g_object_get (print->op, "job_name", &name, NULL); +		print->job_name = name; +	} + +	return print->job_name; +} + +static void +ev_print_operation_print_run (EvPrintOperation *op, +			      GtkWindow        *parent) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	gtk_print_operation_run (print->op, +				 GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, +				 parent, NULL); +} + +static void +ev_print_operation_print_cancel (EvPrintOperation *op) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	gtk_print_operation_cancel (print->op); +} + +static void +ev_print_operation_print_get_error (EvPrintOperation *op, +				    GError          **error) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	gtk_print_operation_get_error (print->op, error); +} + +static void +ev_print_operation_print_set_embed_page_setup (EvPrintOperation *op, +					       gboolean          embed) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	gtk_print_operation_set_embed_page_setup (print->op, embed); +} + +static gboolean +ev_print_operation_print_get_embed_page_setup (EvPrintOperation *op) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op); + +	return gtk_print_operation_get_embed_page_setup (print->op); +} + +static void +ev_print_operation_print_begin_print (EvPrintOperationPrint *print, +				      GtkPrintContext       *context) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (print); +	gint              n_pages; + +	n_pages = ev_document_get_n_pages (op->document); +	gtk_print_operation_set_n_pages (print->op, n_pages); +	ev_print_operation_update_status (op, -1, n_pages, 0); + +	g_signal_emit (op, signals[BEGIN_PRINT], 0); +} + +static void +ev_print_operation_print_done (EvPrintOperationPrint  *print, +			       GtkPrintOperationResult result) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (print); + +	ev_print_operation_update_status (op, 0, print->n_pages_to_print, 1.0); + +	g_signal_emit (op, signals[DONE], 0, result); +} + +static void +ev_print_operation_print_status_changed (EvPrintOperationPrint *print) +{ +	GtkPrintStatus status; + +	status = gtk_print_operation_get_status (print->op); +	if (status == GTK_PRINT_STATUS_GENERATING_DATA) +		print->n_pages_to_print = gtk_print_operation_get_n_pages_to_print (print->op); +} + +static void +print_job_finished (EvJobPrint            *job, +		    EvPrintOperationPrint *print) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (print); + +	gtk_print_operation_draw_page_finish (print->op); + +	print->total++; +	ev_print_operation_update_status (op, print->total, +					  print->n_pages_to_print, +					  print->total / (gdouble)print->n_pages_to_print); +	ev_job_print_set_cairo (job, NULL); +} + +static void +print_job_cancelled (EvJobPrint            *job, +		     EvPrintOperationPrint *print) +{ +	gtk_print_operation_cancel (print->op); +} + +static void +ev_print_operation_print_request_page_setup (EvPrintOperationPrint *print, +					     GtkPrintContext       *context, +					     gint                   page_nr, +					     GtkPageSetup          *setup) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (print); +	gdouble           width, height; +	GtkPaperSize     *paper_size; + +	ev_document_get_page_size (op->document, page_nr, +				   &width, &height); + +	if (print->use_source_size) { +		paper_size = gtk_paper_size_new_custom ("custom", "custom", +							width, height, GTK_UNIT_POINTS); +		gtk_page_setup_set_paper_size_and_default_margins (setup, paper_size); +		gtk_paper_size_free (paper_size); +	} + +	if (print->autorotate) { +		if (width > height) +			gtk_page_setup_set_orientation (setup, GTK_PAGE_ORIENTATION_LANDSCAPE); +		else +			gtk_page_setup_set_orientation (setup, GTK_PAGE_ORIENTATION_PORTRAIT); +	} +} + +static void +_print_context_get_hard_margins (GtkPrintContext *context, +				 gdouble         *top, +				 gdouble         *bottom, +				 gdouble         *left, +				 gdouble         *right) +{ +	if (!gtk_print_context_get_hard_margins (context, top, bottom, left, right)) { +		*top = 0; +		*bottom = 0; +		*left = 0; +		*right = 0; +	} +} + +static void +ev_print_operation_print_draw_page (EvPrintOperationPrint *print, +				    GtkPrintContext       *context, +				    gint                   page) +{ +	EvPrintOperation *op = EV_PRINT_OPERATION (print); +	cairo_t          *cr; +	gdouble           cr_width, cr_height; +	gdouble           width, height, scale; +	gdouble           x_scale, y_scale; +	gdouble           top, bottom, left, right; + +	gtk_print_operation_set_defer_drawing (print->op); + +	if (!print->job_print) { +		print->job_print = ev_job_print_new (op->document); +		g_signal_connect (G_OBJECT (print->job_print), "finished", +				  G_CALLBACK (print_job_finished), +				  (gpointer)print); +		g_signal_connect (G_OBJECT (print->job_print), "cancelled", +				  G_CALLBACK (print_job_cancelled), +				  (gpointer)print); +	} + +	ev_job_print_set_page (EV_JOB_PRINT (print->job_print), page); + +	cr = gtk_print_context_get_cairo_context (context); +	cr_width = gtk_print_context_get_width (context); +	cr_height = gtk_print_context_get_height (context); +	ev_document_get_page_size (op->document, page, &width, &height); + +	if (print->page_scale == EV_SCALE_NONE) { +		/* Center document page on the printed page */ +		if (print->autorotate) +			cairo_translate (cr, (cr_width - width) / 2, (cr_height - height) / 2); +	} else { +		_print_context_get_hard_margins (context, &top, &bottom, &left, &right); + +		x_scale = (cr_width - left - right) / width; +		y_scale = (cr_height - top - bottom) / height; + +		if (x_scale < y_scale) +			scale = x_scale; +		else +			scale = y_scale; + +		if (print->autorotate) { +			double left_right_sides, top_bottom_sides; + +			cairo_translate (cr, (cr_width - scale * width) / 2, +					 (cr_height - scale * height) / 2); + +			/* Ensure document page is within the margins. The +			 * scale guarantees the document will fit in the +			 * margins so we just need to check each side and +			 * if it overhangs the margin, translate it to the +			 * margin. */ +			left_right_sides = (cr_width - width*scale)/2; +			top_bottom_sides = (cr_height - height*scale)/2; +			if (left_right_sides < left) +				cairo_translate (cr, left - left_right_sides, 0); + +			if (left_right_sides < right) +				cairo_translate (cr, -(right - left_right_sides), 0); + +			if (top_bottom_sides < top) +				cairo_translate (cr, 0, top - top_bottom_sides); + +			if (top_bottom_sides < bottom) +				cairo_translate (cr, 0, -(bottom - top_bottom_sides)); +		} else { +			cairo_translate (cr, left, top); +		} + +		if (print->page_scale == EV_SCALE_FIT_TO_PRINTABLE_AREA || scale < 1.0) { +			cairo_scale (cr, scale, scale); +		} +	} + +	ev_job_print_set_cairo (EV_JOB_PRINT (print->job_print), cr); +	ev_job_scheduler_push_job (print->job_print, EV_JOB_PRIORITY_NONE); +} + +static GObject * +ev_print_operation_print_create_custom_widget (EvPrintOperationPrint *print, +					       GtkPrintContext       *context) +{ +	GtkPrintSettings *settings; +	GtkWidget        *label; +	GtkWidget        *table; +	EvPrintScale      page_scale; +	gboolean          autorotate; +	gboolean          use_source_size; + +	settings = gtk_print_operation_get_print_settings (print->op); +	page_scale = gtk_print_settings_get_int_with_default (settings, EV_PRINT_SETTING_PAGE_SCALE, 1); +	autorotate = gtk_print_settings_has_key (settings, EV_PRINT_SETTING_AUTOROTATE) ? +		gtk_print_settings_get_bool (settings, EV_PRINT_SETTING_AUTOROTATE) : +		TRUE; +	use_source_size = gtk_print_settings_get_bool (settings, EV_PRINT_SETTING_PAGE_SIZE); + +	table = gtk_table_new (3, 2, FALSE); +	gtk_table_set_row_spacings (GTK_TABLE (table), 6); +	gtk_table_set_col_spacings (GTK_TABLE (table), 12); +	gtk_container_set_border_width (GTK_CONTAINER (table), 12); + +	label =  gtk_label_new (_("Page Scaling:")); +	gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0); +	gtk_widget_show (label); + +	print->scale_combo = gtk_combo_box_new_text (); +	gtk_combo_box_append_text (GTK_COMBO_BOX (print->scale_combo), _("None")); +	gtk_combo_box_append_text (GTK_COMBO_BOX (print->scale_combo), _("Shrink to Printable Area")); +	gtk_combo_box_append_text (GTK_COMBO_BOX (print->scale_combo), _("Fit to Printable Area")); +	gtk_combo_box_set_active (GTK_COMBO_BOX (print->scale_combo), page_scale); +	gtk_widget_set_tooltip_text (print->scale_combo, +		_("Scale document pages to fit the selected printer page. Select from one of the following:\n" +		  "\n" +		  "⢠\"None\": No page scaling is performed.\n" +		  "\n" +		  "⢠\"Shrink to Printable Area\": Document pages larger than the printable area" +		  " are reduced to fit the printable area of the printer page.\n" +		  "\n" +		  "⢠\"Fit to Printable Area\": Document pages are enlarged or reduced as" +		  " required to fit the printable area of the printer page.\n")); +	gtk_table_attach (GTK_TABLE (table), print->scale_combo, 1, 2, 0, 1, GTK_FILL, 0, 0, 0); +	gtk_widget_show (print->scale_combo); + +	print->autorotate_button = gtk_check_button_new_with_label (_("Auto Rotate and Center")); +	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (print->autorotate_button), autorotate); +	gtk_widget_set_tooltip_text (print->autorotate_button, +		_("Rotate printer page orientation of each page to match orientation of each document page. " +		  "Document pages will be centered within the printer page.")); +	gtk_table_attach (GTK_TABLE (table), print->autorotate_button, 0, 2, 1, 2, GTK_FILL, 0, 0, 0); +	gtk_widget_show (print->autorotate_button); + +	print->source_button = gtk_check_button_new_with_label (_("Select page size using document page size")); +	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (print->source_button), use_source_size); +	gtk_widget_set_tooltip_text (print->source_button, _("When enabled, each page will be printed on " +							     "the same size paper as the document page.")); +	gtk_table_attach (GTK_TABLE (table), print->source_button, 0, 2, 2, 3, GTK_FILL, 0, 0, 0); +	gtk_widget_show (print->source_button); + +	return G_OBJECT (table); +} + +static void +ev_print_operation_print_custom_widget_apply (EvPrintOperationPrint *print, +					      GtkPrintContext       *context) +{ +	GtkPrintSettings *settings; + +	print->page_scale = gtk_combo_box_get_active (GTK_COMBO_BOX (print->scale_combo)); +	print->autorotate = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (print->autorotate_button)); +	print->use_source_size = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (print->source_button)); +	settings = gtk_print_operation_get_print_settings (print->op); +	gtk_print_settings_set_int (settings, EV_PRINT_SETTING_PAGE_SCALE, print->page_scale); +	gtk_print_settings_set_bool (settings, EV_PRINT_SETTING_AUTOROTATE, print->autorotate); +	gtk_print_settings_set_bool (settings, EV_PRINT_SETTING_PAGE_SIZE, print->use_source_size); +} + +static void +ev_print_operation_print_finalize (GObject *object) +{ +	EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (object); + +	if (print->op) { +		g_object_unref (print->op); +		print->op = NULL; +	} + +	if (print->job_name) { +		g_free (print->job_name); +		print->job_name = NULL; +	} + +	if (print->job_print) { +		if (!ev_job_is_finished (print->job_print)) +			ev_job_cancel (print->job_print); +		g_signal_handlers_disconnect_by_func (print->job_print, +						      print_job_finished, +						      print); +		g_signal_handlers_disconnect_by_func (print->job_print, +						      print_job_cancelled, +						      print); +		g_object_unref (print->job_print); +		print->job_print = NULL; +	} + +	(* G_OBJECT_CLASS (ev_print_operation_print_parent_class)->finalize) (object); +} + +static void +ev_print_operation_print_init (EvPrintOperationPrint *print) +{ +	print->op = gtk_print_operation_new (); +	g_signal_connect_swapped (print->op, "begin_print", +				  G_CALLBACK (ev_print_operation_print_begin_print), +				  print); +	g_signal_connect_swapped (print->op, "done", +				  G_CALLBACK (ev_print_operation_print_done), +				  print); +	g_signal_connect_swapped (print->op, "draw_page", +				  G_CALLBACK (ev_print_operation_print_draw_page), +				  print); +	g_signal_connect_swapped (print->op, "status_changed", +				  G_CALLBACK (ev_print_operation_print_status_changed), +				  print); +	g_signal_connect_swapped (print->op, "request_page_setup", +				  G_CALLBACK (ev_print_operation_print_request_page_setup), +				  print); +	g_signal_connect_swapped (print->op, "create_custom_widget", +				  G_CALLBACK (ev_print_operation_print_create_custom_widget), +				  print); +	g_signal_connect_swapped (print->op, "custom_widget_apply", +				  G_CALLBACK (ev_print_operation_print_custom_widget_apply), +				  print); +	gtk_print_operation_set_allow_async (print->op, TRUE); +	gtk_print_operation_set_use_full_page (print->op, TRUE); +	gtk_print_operation_set_unit (print->op, GTK_UNIT_POINTS); +	gtk_print_operation_set_custom_tab_label (print->op, _("Page Handling")); +} + +static void +ev_print_operation_print_class_init (EvPrintOperationPrintClass *klass) +{ +	GObjectClass          *g_object_class = G_OBJECT_CLASS (klass); +	EvPrintOperationClass *ev_print_op_class = EV_PRINT_OPERATION_CLASS (klass); + +	ev_print_op_class->set_current_page = ev_print_operation_print_set_current_page; +	ev_print_op_class->set_print_settings = ev_print_operation_print_set_print_settings; +	ev_print_op_class->get_print_settings = ev_print_operation_print_get_print_settings; +	ev_print_op_class->set_default_page_setup = ev_print_operation_print_set_default_page_setup; +	ev_print_op_class->get_default_page_setup = ev_print_operation_print_get_default_page_setup; +	ev_print_op_class->set_job_name = ev_print_operation_print_set_job_name; +	ev_print_op_class->get_job_name = ev_print_operation_print_get_job_name; +	ev_print_op_class->run = ev_print_operation_print_run; +	ev_print_op_class->cancel = ev_print_operation_print_cancel; +	ev_print_op_class->get_error = ev_print_operation_print_get_error; +	ev_print_op_class->set_embed_page_setup = ev_print_operation_print_set_embed_page_setup; +	ev_print_op_class->get_embed_page_setup = ev_print_operation_print_get_embed_page_setup; + +	g_object_class->finalize = ev_print_operation_print_finalize; +} + +gboolean +ev_print_operation_exists_for_document (EvDocument *document) +{ +#if GTKUNIXPRINT_ENABLED +	return (EV_IS_FILE_EXPORTER(document) || EV_IS_DOCUMENT_PRINT(document)); +#else +	return EV_IS_DOCUMENT_PRINT(document); +#endif /* GTKUNIXPRINT_ENABLED */ +} + +/* Factory method */ +EvPrintOperation * +ev_print_operation_new (EvDocument *document) +{ +	EvPrintOperation *op = NULL; + +	g_return_val_if_fail (ev_print_operation_exists_for_document (document), NULL); + +	if (EV_IS_DOCUMENT_PRINT (document)) +		op = EV_PRINT_OPERATION (g_object_new (EV_TYPE_PRINT_OPERATION_PRINT, +						       "document", document, NULL)); +	else +#if GTKUNIXPRINT_ENABLED +		op = EV_PRINT_OPERATION (g_object_new (EV_TYPE_PRINT_OPERATION_EXPORT, +						       "document", document, NULL)); +#else +		op = NULL; +#endif +	return op; +} diff --git a/libview/ev-print-operation.h b/libview/ev-print-operation.h new file mode 100644 index 00000000..c01a0995 --- /dev/null +++ b/libview/ev-print-operation.h @@ -0,0 +1,71 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2008 Carlos Garcia Campos <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef __EV_PRINT_OPERATION_H__ +#define __EV_PRINT_OPERATION_H__ + +#include <gtk/gtk.h> +#include <glib-object.h> + +#include <evince-document.h> + +G_BEGIN_DECLS + +typedef struct _EvPrintOperation      EvPrintOperation; +typedef struct _EvPrintOperationClass EvPrintOperationClass; + +#define EV_TYPE_PRINT_OPERATION              (ev_print_operation_get_type()) +#define EV_PRINT_OPERATION(object)           (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_PRINT_OPERATION, EvPrintOperation)) +#define EV_PRINT_OPERATION_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_PRINT_OPERATION, EvPrintOperationClass)) +#define EV_IS_PRINT_OPERATION(object)        (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_PRINT_OPERATION)) +#define EV_PRINT_OPERATION_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_PRINT_OPERATION, EvPrintOperationClass)) + +GType             ev_print_operation_get_type               (void) G_GNUC_CONST; + +gboolean          ev_print_operation_exists_for_document    (EvDocument       *document); +EvPrintOperation *ev_print_operation_new                    (EvDocument       *document); +void              ev_print_operation_set_current_page       (EvPrintOperation *op, +							     gint              current_page); +void              ev_print_operation_set_print_settings     (EvPrintOperation *op, +							     GtkPrintSettings *print_settings); +GtkPrintSettings *ev_print_operation_get_print_settings     (EvPrintOperation *op); +void              ev_print_operation_set_default_page_setup (EvPrintOperation *op, +							     GtkPageSetup     *page_setup); +GtkPageSetup     *ev_print_operation_get_default_page_setup (EvPrintOperation *op); +void              ev_print_operation_set_job_name           (EvPrintOperation *op, +							     const gchar      *job_name); +const gchar      *ev_print_operation_get_job_name           (EvPrintOperation *op); +void              ev_print_operation_run                    (EvPrintOperation *op, +							     GtkWindow        *parent); +void              ev_print_operation_cancel                 (EvPrintOperation *op); +void              ev_print_operation_get_error              (EvPrintOperation *op, +							     GError          **error); +void              ev_print_operation_set_embed_page_setup   (EvPrintOperation *op, +							     gboolean          embed); +gboolean          ev_print_operation_get_embed_page_setup   (EvPrintOperation *op); +const gchar      *ev_print_operation_get_status             (EvPrintOperation *op); +gdouble           ev_print_operation_get_progress           (EvPrintOperation *op); + +G_END_DECLS +	 +#endif /* __EV_PRINT_OPERATION_H__ */ diff --git a/libview/ev-stock-icons.c b/libview/ev-stock-icons.c new file mode 100644 index 00000000..47b3943e --- /dev/null +++ b/libview/ev-stock-icons.c @@ -0,0 +1,143 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* Stock icons for Evince + * + * Copyright (C) 2003 Martin Kretzschmar + * + * Author: + *   Martin Kretzschmar <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public + * License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <config.h> + +#include <gtk/gtk.h> + +#include "ev-stock-icons.h" + +typedef struct { +	char *stock_id; +	char *icon; +} EvStockIcon; + +/* Evince stock icons */ +static const EvStockIcon stock_icons [] = { +	{ EV_STOCK_ZOOM,	     "zoom" }, +	{ EV_STOCK_ZOOM_PAGE,        "zoom-fit-height" }, +	{ EV_STOCK_ZOOM_WIDTH,       "zoom-fit-width" }, +	{ EV_STOCK_VIEW_DUAL,        "view-page-facing" }, +	{ EV_STOCK_VIEW_CONTINUOUS,  "view-page-continuous" }, +	{ EV_STOCK_ROTATE_LEFT,      "object-rotate-left"}, +	{ EV_STOCK_ROTATE_RIGHT,     "object-rotate-right"}, +	{ EV_STOCK_RUN_PRESENTATION, "x-office-presentation"}, +	{ EV_STOCK_VISIBLE,          "eye"}, +	{ EV_STOCK_RESIZE_SE,        "resize-se"}, +	{ EV_STOCK_RESIZE_SW,        "resize-sw"}, +	{ EV_STOCK_CLOSE,            "close"}, +	{ EV_STOCK_INVERTED_COLORS,  "stock_filters-invert"}, +	{ EV_STOCK_ATTACHMENT,       "mail-attachment"} +}; + +static gchar *ev_icons_path; + +static void +ev_stock_icons_add_icons_path_for_screen (GdkScreen *screen) +{ +	GtkIconTheme *icon_theme; + +	g_return_if_fail (ev_icons_path != NULL); + +	icon_theme = screen ? gtk_icon_theme_get_for_screen (screen) : gtk_icon_theme_get_default (); +	if (icon_theme) { +		gchar **path = NULL; +		gint    n_paths; +		gint    i; + +		/* GtkIconTheme will then look in Evince custom hicolor dir +		 * for icons as well as the standard search paths +		 */ +		gtk_icon_theme_get_search_path (icon_theme, &path, &n_paths); +		for (i = n_paths - 1; i >= 0; i--) { +			if (g_ascii_strcasecmp (ev_icons_path, path[i]) == 0) +				break; +		} + +		if (i < 0) +			gtk_icon_theme_append_search_path (icon_theme, +							   ev_icons_path); + +		g_strfreev (path); +	} +} + +/** + * ev_stock_icons_init: + * + * Creates a new icon factory, adding the base stock icons to it. + */ +void +ev_stock_icons_init (void) +{ +	GtkIconFactory *factory; +	GtkIconSource *source; +	gint i; +#ifdef G_OS_WIN32 +	gchar *dir; + +	dir = g_win32_get_package_installation_directory_of_module (NULL); +	ev_icons_path = g_build_filename (dir, "share", "evince", "icons", NULL); +	g_free (dir); +#else +	ev_icons_path = g_build_filename (EVINCEDATADIR, "icons", NULL); +#endif + +        factory = gtk_icon_factory_new (); +        gtk_icon_factory_add_default (factory); + +	source = gtk_icon_source_new (); + +	for (i = 0; i < G_N_ELEMENTS (stock_icons); i++) { +		GtkIconSet *set; + +		gtk_icon_source_set_icon_name (source, stock_icons [i].icon); + +		set = gtk_icon_set_new (); +		gtk_icon_set_add_source (set, source); + +		gtk_icon_factory_add (factory, stock_icons [i].stock_id, set); +		gtk_icon_set_unref (set); +	} + +	gtk_icon_source_free (source); + +	g_object_unref (G_OBJECT (factory)); + +	ev_stock_icons_add_icons_path_for_screen (gdk_screen_get_default ()); +} + +void +ev_stock_icons_set_screen (GdkScreen *screen) +{ +	g_return_if_fail (GDK_IS_SCREEN (screen)); + +	ev_stock_icons_add_icons_path_for_screen (screen); +} + +void +ev_stock_icons_shutdown (void) +{ +	g_free (ev_icons_path); +} + diff --git a/libview/ev-stock-icons.h b/libview/ev-stock-icons.h new file mode 100644 index 00000000..96ec26f6 --- /dev/null +++ b/libview/ev-stock-icons.h @@ -0,0 +1,57 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* Stock icons for Evince + * + * Copyright (C) 2003 Martin Kretzschmar + * + * Author: + *   Martin Kretzschmar <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public + * License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef __EV_STOCK_ICONS_H__ +#define __EV_STOCK_ICONS_H__ + +#include <gdk/gdk.h> + +G_BEGIN_DECLS + +/* Evince stock icons */ +#define EV_STOCK_ZOOM	                "zoom" +#define EV_STOCK_ZOOM_PAGE              "zoom-fit-height" +#define EV_STOCK_ZOOM_WIDTH             "zoom-fit-width" +#define EV_STOCK_VIEW_DUAL       	"view-page-facing" +#define EV_STOCK_VIEW_CONTINUOUS        "view-page-continuous" +#define EV_STOCK_ROTATE_LEFT            "object-rotate-left" +#define EV_STOCK_ROTATE_RIGHT           "object-rotate-right" +#define EV_STOCK_RUN_PRESENTATION       "x-office-presentation" +#define EV_STOCK_VISIBLE                "eye" +#define EV_STOCK_RESIZE_SE              "resize-se" +#define EV_STOCK_RESIZE_SW              "resize-sw" +#define EV_STOCK_CLOSE                  "close" +#define EV_STOCK_INVERTED_COLORS        "inverted" +#define EV_STOCK_ATTACHMENT             "mail-attachment" + +void ev_stock_icons_init       (void); +void ev_stock_icons_shutdown   (void); +void ev_stock_icons_set_screen (GdkScreen *screen); + +G_END_DECLS + +#endif /* __EV_STOCK_ICONS_H__ */ diff --git a/libview/ev-timeline.c b/libview/ev-timeline.c new file mode 100644 index 00000000..7491d6cf --- /dev/null +++ b/libview/ev-timeline.c @@ -0,0 +1,450 @@ +/* ev-timeline.c + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2007 Carlos Garnacho <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,  + * Boston, MA 02110-1301, USA. + */ + +#include <glib.h> +#include <math.h> +#include <gdk/gdk.h> +#include "ev-timeline.h" + +#define EV_TIMELINE_GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EV_TYPE_TIMELINE, EvTimelinePriv)) +#define MSECS_PER_SEC 1000 +#define FRAME_INTERVAL(nframes) (MSECS_PER_SEC / nframes) +#define DEFAULT_FPS 30 + +typedef struct EvTimelinePriv EvTimelinePriv; + +struct EvTimelinePriv { +	guint duration; +	guint fps; +	guint source_id; + +	GTimer *timer; + +	guint loop : 1; +}; + +enum { +	PROP_0, +	PROP_FPS, +	PROP_DURATION, +	PROP_LOOP +}; + +enum { +	STARTED, +	PAUSED, +	FINISHED, +	FRAME, +	LAST_SIGNAL +}; + +static guint signals [LAST_SIGNAL] = { 0, }; + + +G_DEFINE_TYPE (EvTimeline, ev_timeline, G_TYPE_OBJECT) + + +static void +ev_timeline_init (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	priv->fps = DEFAULT_FPS; +	priv->duration = 0; +} + +static void +ev_timeline_set_property (GObject      *object, +			  guint         prop_id, +			  const GValue *value, +			  GParamSpec   *pspec) +{ +	EvTimeline *timeline; + +	timeline = EV_TIMELINE (object); + +	switch (prop_id) { +	case PROP_FPS: +		ev_timeline_set_fps (timeline, g_value_get_uint (value)); +		break; +	case PROP_DURATION: +		ev_timeline_set_duration (timeline, g_value_get_uint (value)); +		break; +	case PROP_LOOP: +		ev_timeline_set_loop (timeline, g_value_get_boolean (value)); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static void +ev_timeline_get_property (GObject    *object, +			  guint       prop_id, +			  GValue     *value, +			  GParamSpec *pspec) +{ +	EvTimeline     *timeline; +	EvTimelinePriv *priv; + +	timeline = EV_TIMELINE (object); +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	switch (prop_id) { +	case PROP_FPS: +		g_value_set_uint (value, priv->fps); +		break; +	case PROP_DURATION: +		g_value_set_uint (value, priv->duration); +		break; +	case PROP_LOOP: +		g_value_set_boolean (value, priv->loop); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static void +ev_timeline_finalize (GObject *object) +{ +	EvTimelinePriv *priv; + +	priv = EV_TIMELINE_GET_PRIV (object); + +	if (priv->source_id) { +		g_source_remove (priv->source_id); +		priv->source_id = 0; +	} + +	if (priv->timer) +		g_timer_destroy (priv->timer); + +	G_OBJECT_CLASS (ev_timeline_parent_class)->finalize (object); +} + +static gboolean +ev_timeline_run_frame (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; +	gdouble         progress; +	guint           elapsed_time; + +	GDK_THREADS_ENTER (); + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	elapsed_time = (guint) (g_timer_elapsed (priv->timer, NULL) * 1000); +	progress = (gdouble) elapsed_time / priv->duration; +	progress = CLAMP (progress, 0., 1.); + +	g_signal_emit (timeline, signals [FRAME], 0, progress); + +	if (progress >= 1.0) { +		if (!priv->loop) { +			if (priv->source_id) { +				g_source_remove (priv->source_id); +				priv->source_id = 0; +			} + +			g_signal_emit (timeline, signals [FINISHED], 0); +			return FALSE; +		} else { +			ev_timeline_rewind (timeline); +		} +	} + +	GDK_THREADS_LEAVE (); + +	return TRUE; +} + +static void +ev_timeline_real_start (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	if (!priv->source_id) { +		if (priv->timer) +			g_timer_continue (priv->timer); +		else +			priv->timer = g_timer_new (); + +		/* sanity check */ +		g_assert (priv->fps > 0); + +		g_signal_emit (timeline, signals [STARTED], 0); + +		priv->source_id = g_timeout_add (FRAME_INTERVAL (priv->fps), +						 (GSourceFunc) ev_timeline_run_frame, +						 timeline); +	} +} + +static void +ev_timeline_class_init (EvTimelineClass *class) +{ +	GObjectClass *object_class = G_OBJECT_CLASS (class); + +	object_class->set_property = ev_timeline_set_property; +	object_class->get_property = ev_timeline_get_property; +	object_class->finalize = ev_timeline_finalize; + +	class->start = ev_timeline_real_start; + +	g_object_class_install_property (object_class, +					 PROP_FPS, +					 g_param_spec_uint ("fps", +							    "FPS", +							    "Frames per second for the timeline", +							    1, +							    G_MAXUINT, +							    DEFAULT_FPS, +							    G_PARAM_READWRITE)); +	g_object_class_install_property (object_class, +					 PROP_DURATION, +					 g_param_spec_uint ("duration", +							    "Animation Duration", +							    "Animation Duration", +							    0, +							    G_MAXUINT, +							    0, +							    G_PARAM_READWRITE)); +	g_object_class_install_property (object_class, +					 PROP_LOOP, +					 g_param_spec_boolean ("loop", +							       "Loop", +							       "Whether the timeline loops or not", +							       FALSE, +							       G_PARAM_READWRITE)); +	signals[STARTED] = +		g_signal_new ("started", +			      G_TYPE_FROM_CLASS (object_class), +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvTimelineClass, started), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__VOID, +			      G_TYPE_NONE, 0); + +	signals[PAUSED] = +		g_signal_new ("paused", +			      G_TYPE_FROM_CLASS (object_class), +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvTimelineClass, paused), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__VOID, +			      G_TYPE_NONE, 0); + +	signals[FINISHED] = +		g_signal_new ("finished", +			      G_TYPE_FROM_CLASS (object_class), +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvTimelineClass, finished), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__VOID, +			      G_TYPE_NONE, 0); + +	signals[FRAME] = +		g_signal_new ("frame", +			      G_TYPE_FROM_CLASS (object_class), +			      G_SIGNAL_RUN_LAST, +			      G_STRUCT_OFFSET (EvTimelineClass, frame), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__DOUBLE, +			      G_TYPE_NONE, 1, +			      G_TYPE_DOUBLE); + +	g_type_class_add_private (class, sizeof (EvTimelinePriv)); +} + +EvTimeline * +ev_timeline_new (guint duration) +{ +	return g_object_new (EV_TYPE_TIMELINE, +			     "duration", duration, +			     NULL); +} + +void +ev_timeline_start (EvTimeline *timeline) +{ +	g_return_if_fail (EV_IS_TIMELINE (timeline)); + +	EV_TIMELINE_GET_CLASS (timeline)->start (timeline); +} + +void +ev_timeline_pause (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; + +	g_return_if_fail (EV_IS_TIMELINE (timeline)); + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	if (priv->source_id) { +		g_source_remove (priv->source_id); +		priv->source_id = 0; +		g_timer_stop (priv->timer); +		g_signal_emit (timeline, signals [PAUSED], 0); +	} +} + +void +ev_timeline_rewind (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; + +	g_return_if_fail (EV_IS_TIMELINE (timeline)); + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	/* destroy and re-create timer if neccesary  */ +	if (priv->timer) { +		g_timer_destroy (priv->timer); + +		if (ev_timeline_is_running (timeline)) +			priv->timer = g_timer_new (); +		else +			priv->timer = NULL; +	} +} + +gboolean +ev_timeline_is_running (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; + +	g_return_val_if_fail (EV_IS_TIMELINE (timeline), FALSE); + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	return (priv->source_id != 0); +} + +guint +ev_timeline_get_fps (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; + +	g_return_val_if_fail (EV_IS_TIMELINE (timeline), 1); + +	priv = EV_TIMELINE_GET_PRIV (timeline); +	return priv->fps; +} + +void +ev_timeline_set_fps (EvTimeline *timeline, +		     guint       fps) +{ +	EvTimelinePriv *priv; + +	g_return_if_fail (EV_IS_TIMELINE (timeline)); + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	priv->fps = fps; + +	if (ev_timeline_is_running (timeline)) { +		g_source_remove (priv->source_id); +		priv->source_id = g_timeout_add (FRAME_INTERVAL (priv->fps), +						 (GSourceFunc) ev_timeline_run_frame, +						 timeline); +	} + +	g_object_notify (G_OBJECT (timeline), "fps"); +} + +gboolean +ev_timeline_get_loop (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; + +	g_return_val_if_fail (EV_IS_TIMELINE (timeline), FALSE); + +	priv = EV_TIMELINE_GET_PRIV (timeline); +	return priv->loop; +} + +void +ev_timeline_set_loop (EvTimeline *timeline, +		      gboolean    loop) +{ +	EvTimelinePriv *priv; + +	g_return_if_fail (EV_IS_TIMELINE (timeline)); + +	priv = EV_TIMELINE_GET_PRIV (timeline); +	priv->loop = loop; + +	g_object_notify (G_OBJECT (timeline), "loop"); +} + +void +ev_timeline_set_duration (EvTimeline *timeline, +			  guint       duration) +{ +	EvTimelinePriv *priv; + +	g_return_if_fail (EV_IS_TIMELINE (timeline)); + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	priv->duration = duration; + +	g_object_notify (G_OBJECT (timeline), "duration"); +} + +guint +ev_timeline_get_duration (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; + +	g_return_val_if_fail (EV_IS_TIMELINE (timeline), 0); + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	return priv->duration; +} + +gdouble +ev_timeline_get_progress (EvTimeline *timeline) +{ +	EvTimelinePriv *priv; +	gdouble         progress; +	guint           elapsed_time; + +	g_return_val_if_fail (EV_IS_TIMELINE (timeline), 0.0); + +	priv = EV_TIMELINE_GET_PRIV (timeline); + +	if (!priv->timer) +		return 0.; + +	elapsed_time = (guint) (g_timer_elapsed (priv->timer, NULL) * 1000); +	progress = (gdouble) elapsed_time / priv->duration; + +	return CLAMP (progress, 0., 1.); +} diff --git a/libview/ev-timeline.h b/libview/ev-timeline.h new file mode 100644 index 00000000..e7f9d625 --- /dev/null +++ b/libview/ev-timeline.h @@ -0,0 +1,90 @@ +/* ev-timeline.h + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2007 Carlos Garnacho <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,  + * Boston, MA 02110-1301, USA. + */ + +#if !defined (EVINCE_COMPILATION) +#error "This is a private header." +#endif + +#ifndef __EV_TIMELINE_H__ +#define __EV_TIMELINE_H__ + +#include <glib-object.h> + +G_BEGIN_DECLS + +#define EV_TYPE_TIMELINE                 (ev_timeline_get_type ()) +#define EV_TIMELINE(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_TIMELINE, EvTimeline)) +#define EV_TIMELINE_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass),  EV_TYPE_TIMELINE, EvTimelineClass)) +#define EV_IS_TIMELINE(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_TIMELINE)) +#define EV_IS_TIMELINE_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass),  EV_TYPE_TIMELINE)) +#define EV_TIMELINE_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj),  EV_TYPE_TIMELINE, EvTimelineClass)) + +typedef struct EvTimeline      EvTimeline; +typedef struct EvTimelineClass EvTimelineClass; + +struct EvTimeline { +	GObject parent_instance; +}; + +struct EvTimelineClass { +	GObjectClass parent_class; + +	/* vmethods */ +	void (* start)             (EvTimeline *timeline); + +	/* signals */ +	void (* started)           (EvTimeline *timeline); +	void (* finished)          (EvTimeline *timeline); +	void (* paused)            (EvTimeline *timeline); + +	void (* frame)             (EvTimeline *timeline, +				    gdouble     progress); +}; + + +GType                 ev_timeline_get_type           (void) G_GNUC_CONST; + +EvTimeline           *ev_timeline_new                (guint                    duration); + +void                  ev_timeline_start              (EvTimeline             *timeline); +void                  ev_timeline_pause              (EvTimeline             *timeline); +void                  ev_timeline_rewind             (EvTimeline             *timeline); + +gboolean              ev_timeline_is_running         (EvTimeline             *timeline); + +guint                 ev_timeline_get_fps            (EvTimeline             *timeline); +void                  ev_timeline_set_fps            (EvTimeline             *timeline, +						      guint                   fps); + +gboolean              ev_timeline_get_loop           (EvTimeline             *timeline); +void                  ev_timeline_set_loop           (EvTimeline             *timeline, +						      gboolean                loop); + +guint                 ev_timeline_get_duration       (EvTimeline             *timeline); +void                  ev_timeline_set_duration       (EvTimeline             *timeline, +						      guint                   duration); + +gdouble               ev_timeline_get_progress       (EvTimeline             *timeline); + + +G_END_DECLS + +#endif /* __EV_TIMELINE_H__ */ diff --git a/libview/ev-transition-animation.c b/libview/ev-transition-animation.c new file mode 100644 index 00000000..a767019b --- /dev/null +++ b/libview/ev-transition-animation.c @@ -0,0 +1,676 @@ +/* ev-transition-animation.c + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2007 Carlos Garnacho <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,  + * Boston, MA 02110-1301, USA. + */ + +#include <cairo.h> +#include <gdk/gdk.h> +#include "ev-transition-animation.h" +#include "ev-timeline.h" + +#define EV_TRANSITION_ANIMATION_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EV_TYPE_TRANSITION_ANIMATION, EvTransitionAnimationPriv)) +#define N_BLINDS 6 + +typedef struct EvTransitionAnimationPriv EvTransitionAnimationPriv; + +struct EvTransitionAnimationPriv { +	EvTransitionEffect *effect; +	cairo_surface_t *origin_surface; +	cairo_surface_t *dest_surface; +}; + +enum { +	PROP_0, +	PROP_EFFECT, +	PROP_ORIGIN_SURFACE, +	PROP_DEST_SURFACE +}; + + +G_DEFINE_TYPE (EvTransitionAnimation, ev_transition_animation, EV_TYPE_TIMELINE) + + +static void +ev_transition_animation_init (EvTransitionAnimation *animation) +{ +} + +static void +ev_transition_animation_set_property (GObject      *object, +				      guint         prop_id, +				      const GValue *value, +				      GParamSpec   *pspec) +{ +	EvTransitionAnimationPriv *priv; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (object); + +	switch (prop_id) { +	case PROP_EFFECT: +		if (priv->effect) +			g_object_unref (priv->effect); + +		priv->effect = g_value_dup_object (value); +		break; +	case PROP_ORIGIN_SURFACE: +		ev_transition_animation_set_origin_surface (EV_TRANSITION_ANIMATION (object), +							    g_value_get_pointer (value)); +		break; +	case PROP_DEST_SURFACE: +		ev_transition_animation_set_dest_surface (EV_TRANSITION_ANIMATION (object), +							  g_value_get_pointer (value)); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static void +ev_transition_animation_get_property (GObject      *object, +				      guint         prop_id, +				      GValue       *value, +				      GParamSpec   *pspec) +{ +	EvTransitionAnimationPriv *priv; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (object); + +	switch (prop_id) { +	case PROP_EFFECT: +		g_value_set_object (value, priv->effect); +		break; +	case PROP_ORIGIN_SURFACE: +		g_value_set_pointer (value, priv->origin_surface); +		break; +	case PROP_DEST_SURFACE: +		g_value_set_pointer (value, priv->dest_surface); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static void +ev_transition_animation_finalize (GObject *object) +{ +	EvTransitionAnimationPriv *priv; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (object); + +	if (priv->effect) +		g_object_unref (priv->effect); + +	if (priv->origin_surface) +		cairo_surface_destroy (priv->origin_surface); + +	if (priv->dest_surface) +		cairo_surface_destroy (priv->dest_surface); + +	G_OBJECT_CLASS (ev_transition_animation_parent_class)->finalize (object); +} + +static GObject * +ev_transition_animation_constructor (GType                  type, +				     guint                  n_construct_properties, +				     GObjectConstructParam *construct_params) +{ +	GObject *object; +	EvTransitionAnimationPriv *priv; +	EvTransitionEffect *effect; +	gint duration; + +	object = G_OBJECT_CLASS (ev_transition_animation_parent_class)->constructor (type, +										     n_construct_properties, +										     construct_params); + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (object); +	effect = priv->effect; + +	g_object_get (effect, "duration", &duration, NULL); +	ev_timeline_set_duration (EV_TIMELINE (object), duration * 1000); + +	return object; +} + +static void +ev_transition_animation_class_init (EvTransitionAnimationClass *klass) +{ +	GObjectClass *object_class = G_OBJECT_CLASS (klass); + +	object_class->set_property = ev_transition_animation_set_property; +	object_class->get_property = ev_transition_animation_get_property; +	object_class->finalize = ev_transition_animation_finalize; +	object_class->constructor = ev_transition_animation_constructor; + +	g_object_class_install_property (object_class, +					 PROP_EFFECT, +					 g_param_spec_object ("effect", +							      "Effect", +							      "Transition effect description", +							      EV_TYPE_TRANSITION_EFFECT, +							      G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE)); +	g_object_class_install_property (object_class, +					 PROP_ORIGIN_SURFACE, +					 g_param_spec_pointer ("origin-surface", +							       "Origin surface", +							       "Cairo surface from which the animation will happen", +							       G_PARAM_READWRITE)); +	g_object_class_install_property (object_class, +					 PROP_DEST_SURFACE, +					 g_param_spec_pointer ("dest-surface", +							       "Destination surface", +							       "Cairo surface to which the animation will happen", +							       G_PARAM_READWRITE)); + +	g_type_class_add_private (klass, sizeof (EvTransitionAnimationPriv)); +} + +static void +paint_surface (cairo_t         *cr, +	       cairo_surface_t *surface, +	       gdouble          x_offset, +	       gdouble          y_offset, +	       gdouble          alpha, +	       GdkRectangle     page_area) +{ +	cairo_save (cr); + +	gdk_cairo_rectangle (cr, &page_area); +	cairo_clip (cr); +	cairo_surface_set_device_offset (surface, x_offset, y_offset); +	cairo_set_source_surface (cr, surface, 0, 0); + +	if (alpha == 1.) +		cairo_paint (cr); +	else +		cairo_paint_with_alpha (cr, alpha); + +	cairo_restore (cr); +} + +/* animations */ +static void +ev_transition_animation_split (cairo_t               *cr, +			       EvTransitionAnimation *animation, +			       EvTransitionEffect    *effect, +			       gdouble                progress, +			       GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; +	EvTransitionEffectAlignment alignment; +	EvTransitionEffectDirection direction; +	gint width, height; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); +	width = page_area.width; +	height = page_area.height; + +	g_object_get (effect, +		      "alignment", &alignment, +		      "direction", &direction, +		      NULL); + +	if (direction == EV_TRANSITION_DIRECTION_INWARD) { +		paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); + +		if (alignment == EV_TRANSITION_ALIGNMENT_HORIZONTAL) { +			cairo_rectangle (cr, +					 0, +					 height * progress / 2, +					 width, +					 height * (1 - progress)); +		} else { +			cairo_rectangle (cr, +					 width * progress / 2, +					 0, +					 width * (1 - progress), +					 height); +		} + +		cairo_clip (cr); + +		paint_surface (cr, priv->origin_surface, 0, 0, 1., page_area); +	} else { +		paint_surface (cr, priv->origin_surface, 0, 0, 1., page_area); + +		if (alignment == EV_TRANSITION_ALIGNMENT_HORIZONTAL) { +			cairo_rectangle (cr, +					 0, +					 (height / 2) - (height * progress / 2), +					 width, +					 height * progress); +		} else { +			cairo_rectangle (cr, +					 (width / 2) - (width * progress / 2), +					 0, +					 width * progress, +					 height); +		} + +		cairo_clip (cr); + +		paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); +	} +} + +static void +ev_transition_animation_blinds (cairo_t               *cr, +				EvTransitionAnimation *animation, +				EvTransitionEffect    *effect, +				gdouble                progress, +				GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; +	EvTransitionEffectAlignment alignment; +	gint width, height, i; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); +	width = page_area.width; +	height = page_area.height; + +	g_object_get (effect, +		      "alignment", &alignment, +		      NULL); + +	paint_surface (cr, priv->origin_surface, 0, 0, 1., page_area); + +	for (i = 0; i < N_BLINDS; i++) { +		cairo_save (cr); + +		if (alignment == EV_TRANSITION_ALIGNMENT_HORIZONTAL) { +			cairo_rectangle (cr, +					 0, +					 height / N_BLINDS * i, +					 width, +					 height / N_BLINDS * progress); +		} else { +			cairo_rectangle (cr, +					 width / N_BLINDS * i, +					 0, +					 width / N_BLINDS * progress, +					 height); +		} + +		cairo_clip (cr); +		paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); +		cairo_restore (cr); +	} +} + +static void +ev_transition_animation_box (cairo_t               *cr, +			     EvTransitionAnimation *animation, +			     EvTransitionEffect    *effect, +			     gdouble                progress, +			     GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; +	EvTransitionEffectDirection direction; +	gint width, height; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); +	width = page_area.width; +	height = page_area.height; + +	g_object_get (effect, +		      "direction", &direction, +		      NULL); + +	if (direction == EV_TRANSITION_DIRECTION_INWARD) { +		paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); + +		cairo_rectangle (cr, +				 width * progress / 2, +				 height * progress / 2, +				 width * (1 - progress), +				 height * (1 - progress)); +		cairo_clip (cr); + +		paint_surface (cr, priv->origin_surface, 0, 0, 1., page_area); +	} else { +		paint_surface (cr, priv->origin_surface, 0, 0, 1., page_area); + +		cairo_rectangle (cr, +				 (width / 2) - (width * progress / 2), +				 (height / 2) - (height * progress / 2), +				 width * progress, +				 height * progress); +		cairo_clip (cr); + +		paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); +	} +} + +static void +ev_transition_animation_wipe (cairo_t               *cr, +			      EvTransitionAnimation *animation, +			      EvTransitionEffect    *effect, +			      gdouble                progress, +			      GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; +	gint width, height; +	gint angle; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); +	width = page_area.width; +	height = page_area.height; + +	g_object_get (effect, +		      "angle", &angle, +		      NULL); + +	paint_surface (cr, priv->origin_surface, 0, 0, 1., page_area); + +	if (angle == 0) { +		/* left to right */ +		cairo_rectangle (cr, +				 0, 0, +				 width * progress, +				 height); +	} else if (angle <= 90) { +		/* bottom to top */ +		cairo_rectangle (cr, +				 0, +				 height * (1 - progress), +				 width, +				 height * progress); +	} else if (angle <= 180) { +		/* right to left */ +		cairo_rectangle (cr, +				 width * (1 - progress), +				 0, +				 width * progress, +				 height); +	} else if (angle <= 270) { +		/* top to bottom */ +		cairo_rectangle (cr, +				 0, 0, +				 width, +				 height * progress); +	} + +	cairo_clip (cr); + +	paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); +} + +static void +ev_transition_animation_dissolve (cairo_t               *cr, +				  EvTransitionAnimation *animation, +				  EvTransitionEffect    *effect, +				  gdouble                progress, +				  GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); + +	paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); +	paint_surface (cr, priv->origin_surface, 0, 0, 1 - progress, page_area); +} + +static void +ev_transition_animation_push (cairo_t               *cr, +			      EvTransitionAnimation *animation, +			      EvTransitionEffect    *effect, +			      gdouble                progress, +			      GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; +	gint width, height; +	gint angle; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); +	width = page_area.width; +	height = page_area.height; + +	g_object_get (effect, +		      "angle", &angle, +		      NULL); + +	if (angle == 0) { +		/* left to right */ +		paint_surface (cr, priv->origin_surface, - (width * progress), 0, 1., page_area); +		paint_surface (cr, priv->dest_surface, width * (1 - progress), 0, 1., page_area); +	} else { +		/* top to bottom */ +		paint_surface (cr, priv->origin_surface, 0, - (height * progress), 1., page_area); +		paint_surface (cr, priv->dest_surface, 0, height * (1 - progress), 1., page_area); +	} +} + +static void +ev_transition_animation_cover (cairo_t               *cr, +			       EvTransitionAnimation *animation, +			       EvTransitionEffect    *effect, +			       gdouble                progress, +			       GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; +	gint width, height; +	gint angle; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); +	width = page_area.width; +	height = page_area.height; + +	g_object_get (effect, +		      "angle", &angle, +		      NULL); + +	paint_surface (cr, priv->origin_surface, 0, 0, 1., page_area); + +	if (angle == 0) { +		/* left to right */ +		paint_surface (cr, priv->dest_surface, width * (1 - progress), 0, 1., page_area); +	} else { +		/* top to bottom */ +		paint_surface (cr, priv->dest_surface, 0, height * (1 - progress), 1., page_area); +	} +} + +static void +ev_transition_animation_uncover (cairo_t               *cr, +				 EvTransitionAnimation *animation, +				 EvTransitionEffect    *effect, +				 gdouble                progress, +				 GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; +	gint width, height; +	gint angle; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); +	width = page_area.width; +	height = page_area.height; + +	g_object_get (effect, +		      "angle", &angle, +		      NULL); + +	paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); + +	if (angle == 0) { +		/* left to right */ +		paint_surface (cr, priv->origin_surface, - (width * progress), 0, 1., page_area); +	} else { +		/* top to bottom */ +		paint_surface (cr, priv->origin_surface, 0, - (height * progress), 1., page_area); +	} +} + +static void +ev_transition_animation_fade (cairo_t               *cr, +			      EvTransitionAnimation *animation, +			      EvTransitionEffect    *effect, +			      gdouble                progress, +			      GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); + +	paint_surface (cr, priv->origin_surface, 0, 0, 1., page_area); +	paint_surface (cr, priv->dest_surface, 0, 0, progress, page_area); +} + +void +ev_transition_animation_paint (EvTransitionAnimation *animation, +			       cairo_t               *cr, +			       GdkRectangle           page_area) +{ +	EvTransitionAnimationPriv *priv; +	EvTransitionEffectType type; +	gdouble progress; + +	g_return_if_fail (EV_IS_TRANSITION_ANIMATION (animation)); + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); + +	if (!priv->dest_surface) { +		/* animation is still not ready, paint the origin surface */ +		paint_surface (cr, priv->origin_surface, 0, 0, 1., page_area); +		return; +	} + +	g_object_get (priv->effect, "type", &type, NULL); +	progress = ev_timeline_get_progress (EV_TIMELINE (animation)); + +	switch (type) { +	case EV_TRANSITION_EFFECT_REPLACE: +		/* just paint the destination slide */ +		paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); +		break; +	case EV_TRANSITION_EFFECT_SPLIT: +		ev_transition_animation_split (cr, animation, priv->effect, progress, page_area); +		break; +	case EV_TRANSITION_EFFECT_BLINDS: +		ev_transition_animation_blinds (cr, animation, priv->effect, progress, page_area); +		break; +	case EV_TRANSITION_EFFECT_BOX: +		ev_transition_animation_box (cr, animation, priv->effect, progress, page_area); +		break; +	case EV_TRANSITION_EFFECT_WIPE: +		ev_transition_animation_wipe (cr, animation, priv->effect, progress, page_area); +		break; +	case EV_TRANSITION_EFFECT_DISSOLVE: +		ev_transition_animation_dissolve (cr, animation, priv->effect, progress, page_area); +		break; +	case EV_TRANSITION_EFFECT_PUSH: +		ev_transition_animation_push (cr, animation, priv->effect, progress, page_area); +		break; +	case EV_TRANSITION_EFFECT_COVER: +		ev_transition_animation_cover (cr, animation, priv->effect, progress, page_area); +		break; +	case EV_TRANSITION_EFFECT_UNCOVER: +		ev_transition_animation_uncover (cr, animation, priv->effect, progress, page_area); +		break; +	case EV_TRANSITION_EFFECT_FADE: +		ev_transition_animation_fade (cr, animation, priv->effect, progress, page_area); +		break; +	default: { +		GEnumValue *enum_value; + +		enum_value = g_enum_get_value (g_type_class_peek (EV_TYPE_TRANSITION_EFFECT_TYPE), type); + +		g_warning ("Unimplemented transition animation: '%s', " +			   "please post a bug report in Evince bugzilla " +			   "(http://bugzilla.mate.org) with a testcase.", +			   enum_value->value_nick); + +		/* just paint the destination slide */ +		paint_surface (cr, priv->dest_surface, 0, 0, 1., page_area); +		} +	} +} + +EvTransitionAnimation * +ev_transition_animation_new (EvTransitionEffect *effect) +{ +	g_return_val_if_fail (EV_IS_TRANSITION_EFFECT (effect), NULL); + +	return g_object_new (EV_TYPE_TRANSITION_ANIMATION, +			     "effect", effect, +			     NULL); +} + +void +ev_transition_animation_set_origin_surface (EvTransitionAnimation *animation, +					    cairo_surface_t       *origin_surface) +{ +	EvTransitionAnimationPriv *priv; +	cairo_surface_t *surface; + +	g_return_if_fail (EV_IS_TRANSITION_ANIMATION (animation)); + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); + +	if (priv->origin_surface == origin_surface) +		return; + +	surface = cairo_surface_reference (origin_surface); + +	if (priv->origin_surface) +		cairo_surface_destroy (priv->origin_surface); + +	priv->origin_surface = surface; +	g_object_notify (G_OBJECT (animation), "origin-surface"); + +	if (priv->origin_surface && priv->dest_surface) +		ev_timeline_start (EV_TIMELINE (animation)); +} + +void +ev_transition_animation_set_dest_surface (EvTransitionAnimation *animation, +					  cairo_surface_t       *dest_surface) +{ +	EvTransitionAnimationPriv *priv; +	cairo_surface_t *surface; + +	g_return_if_fail (EV_IS_TRANSITION_ANIMATION (animation)); + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); + +	if (priv->dest_surface == dest_surface) +		return; + +	surface = cairo_surface_reference (dest_surface); + +	if (priv->dest_surface) +		cairo_surface_destroy (priv->dest_surface); + +	priv->dest_surface = surface; +	g_object_notify (G_OBJECT (animation), "dest-surface"); + +	if (priv->origin_surface && priv->dest_surface) +		ev_timeline_start (EV_TIMELINE (animation)); +} + +gboolean +ev_transition_animation_ready (EvTransitionAnimation *animation) +{ +	EvTransitionAnimationPriv *priv; + +	g_return_val_if_fail (EV_IS_TRANSITION_ANIMATION (animation), FALSE); + +	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation); + +	return (priv->origin_surface != NULL); +} diff --git a/libview/ev-transition-animation.h b/libview/ev-transition-animation.h new file mode 100644 index 00000000..3d17f28d --- /dev/null +++ b/libview/ev-transition-animation.h @@ -0,0 +1,73 @@ +/* ev-transition-animation.h + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2007 Carlos Garnacho <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,  + * Boston, MA 02110-1301, USA. + */ + +#if !defined (EVINCE_COMPILATION) +#error "This is a private header." +#endif + +#ifndef __EV_TRANSITION_ANIMATION_H__ +#define __EV_TRANSITION_ANIMATION_H__ + +#include <evince-document.h> +#include "ev-timeline.h" +#include "ev-transition-effect.h" + +G_BEGIN_DECLS + +#define EV_TYPE_TRANSITION_ANIMATION                 (ev_transition_animation_get_type ()) +#define EV_TRANSITION_ANIMATION(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_TRANSITION_ANIMATION, EvTransitionAnimation)) +#define EV_TRANSITION_ANIMATION_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass),  EV_TYPE_TRANSITION_ANIMATION, EvTransitionAnimationClass)) +#define EV_IS_TRANSITION_ANIMATION(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_TRANSITION_ANIMATION)) +#define EV_IS_TRANSITION_ANIMATION_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass),  EV_TYPE_TRANSITION_ANIMATION)) +#define EV_TRANSITION_ANIMATION_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj),  EV_TYPE_TRANSITION_ANIMATION, EvTransitionAnimationClass)) + +typedef struct EvTransitionAnimation      EvTransitionAnimation; +typedef struct EvTransitionAnimationClass EvTransitionAnimationClass; + +struct EvTransitionAnimation { +	EvTimeline parent_instance; +}; + +struct EvTransitionAnimationClass { +	EvTimelineClass parent_class; +}; + + +GType                   ev_transition_animation_get_type           (void) G_GNUC_CONST; + +EvTransitionAnimation * ev_transition_animation_new                (EvTransitionEffect    *effect); + +void                    ev_transition_animation_set_origin_surface (EvTransitionAnimation *animation, +								    cairo_surface_t       *origin_surface); +void                    ev_transition_animation_set_dest_surface   (EvTransitionAnimation *animation, +								    cairo_surface_t       *origin_surface); +gint                    ev_transition_animation_get_page_from      (EvTransitionAnimation *animation); +gint                    ev_transition_animation_get_page_to        (EvTransitionAnimation *animation); + +void                    ev_transition_animation_paint              (EvTransitionAnimation *animation, +								    cairo_t               *cr, +								    GdkRectangle           page_area); +gboolean                ev_transition_animation_ready              (EvTransitionAnimation *animation); + + +G_END_DECLS + +#endif /* __EV_TRANSITION_ANIMATION_H__ */ diff --git a/libview/ev-view-accessible.c b/libview/ev-view-accessible.c new file mode 100644 index 00000000..9b41c919 --- /dev/null +++ b/libview/ev-view-accessible.c @@ -0,0 +1,911 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2004 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <math.h> +#include <config.h> +#include <glib/gi18n-lib.h> +#include <gtk/gtk.h> +#include <libgail-util/gail-util.h> + +#include "ev-selection.h" +#include "ev-page-cache.h" +#include "ev-view-accessible.h" +#include "ev-view-private.h" + +#define EV_TYPE_VIEW_ACCESSIBLE      (ev_view_accessible_get_type ()) +#define EV_VIEW_ACCESSIBLE(obj)      (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_VIEW_ACCESSIBLE, EvViewAccessible)) +#define EV_IS_VIEW_ACCESSIBLE(obj)   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_VIEW_ACCESSIBLE)) + +static GType ev_view_accessible_get_type (void); + +enum { +	ACTION_SCROLL_UP, +	ACTION_SCROLL_DOWN, +	LAST_ACTION +}; + +static const gchar *const ev_view_accessible_action_names[] = +{ +	N_("Scroll Up"), +	N_("Scroll Down"), +	NULL +}; + +static const gchar *const ev_view_accessible_action_descriptions[] = +{ +	N_("Scroll View Up"), +	N_("Scroll View Down"), +	NULL +}; + +typedef struct { +	/* Action */ +	gchar *action_descriptions[LAST_ACTION]; +	guint action_idle_handler; +	GtkScrollType idle_scroll; +	GtkTextBuffer *buffer; +	guint current_page; +} EvViewAccessiblePriv; + +typedef GtkAccessibleClass EvViewAccessibleClass; +typedef GtkAccessible EvViewAccessible; + +#define EV_VIEW_ACCESSIBLE_GET_PRIVATE(inst) (G_TYPE_INSTANCE_GET_PRIVATE ((inst), EV_TYPE_VIEW_ACCESSIBLE, EvViewAccessiblePriv)) + +static void +ev_view_accessible_finalize (GObject *object) +{ +	EvViewAccessiblePriv *priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (object); +	int i; + +	if (priv->action_idle_handler) +		g_source_remove (priv->action_idle_handler); +	for (i = 0; i < LAST_ACTION; i++) +		g_free (priv->action_descriptions [i]); +	if (priv->buffer) +		g_object_unref (priv->buffer); + +} + +static void ev_view_accessible_class_init (EvViewAccessibleClass *klass) +{ +	GObjectClass *object_class = G_OBJECT_CLASS (klass); + +	object_class->finalize = ev_view_accessible_finalize; + +	g_type_class_add_private (klass, sizeof (EvViewAccessiblePriv)); +} + +static GtkTextBuffer * +ev_view_accessible_get_text_buffer (EvViewAccessible *accessible, EvView *view) +{ +	EvPageCache *page_cache; +	const gchar *retval = NULL; +	EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (accessible); + +	page_cache = view->page_cache; +	if (!page_cache) { +		return NULL; +	} + +	if (view->current_page == priv->current_page && priv->buffer) { +		return priv->buffer; +	} + +	priv->current_page = view->current_page; + +	if (!priv->buffer) { +		priv->buffer = gtk_text_buffer_new (NULL); +	} + +	retval = ev_page_cache_get_text (page_cache, view->current_page); +	gtk_text_buffer_set_text (priv->buffer, retval, -1); + +	return priv->buffer; +} + +static gchar* +ev_view_accessible_get_text (AtkText *text, +			     gint    start_pos, +			     gint    end_pos) +{ +	GtkWidget *widget; +	GtkTextIter start, end; +	GtkTextBuffer *buffer; +	gchar *retval; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return NULL; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return NULL; + +	gtk_text_buffer_get_iter_at_offset (buffer, &start, start_pos); +	gtk_text_buffer_get_iter_at_offset (buffer, &end, end_pos); +	retval = gtk_text_buffer_get_text (buffer, &start, &end, FALSE); + +	return retval; +} + +static gunichar +ev_view_accessible_get_character_at_offset (AtkText *text, +					    gint    offset) +{ +	GtkWidget *widget; +	GtkTextIter start, end; +	GtkTextBuffer *buffer; +	gchar *string; +	gunichar unichar; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return '\0'; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return '\0'; + +	if (offset >= gtk_text_buffer_get_char_count (buffer)) +		return '\0'; + +	gtk_text_buffer_get_iter_at_offset (buffer, &start, offset); +	end = start; +	gtk_text_iter_forward_char (&end); +	string = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE); +	unichar = g_utf8_get_char (string); +	g_free(string); + +	return unichar; +} + +static gchar* +ev_view_accessible_get_text_before_offset (AtkText	    *text, +					   gint		    offset, +					   AtkTextBoundary  boundary_type, +					   gint		    *start_offset, +					   gint		    *end_offset) +{ +	GtkWidget *widget; +	gpointer layout = NULL; +	GailTextUtil *gail_text = NULL; +	gchar *retval = NULL; +	GtkTextBuffer *buffer; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return NULL; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return NULL; + +	gail_text = gail_text_util_new (); +	gail_text_util_buffer_setup (gail_text, buffer); +	retval = gail_text_util_get_text (gail_text, layout, +	                                  GAIL_BEFORE_OFFSET, boundary_type, +	                                  offset, start_offset, end_offset); +	g_object_unref (gail_text); + +	return retval; +} + +static gchar* +ev_view_accessible_get_text_at_offset (AtkText          *text, +				       gint             offset, +				       AtkTextBoundary  boundary_type, +				       gint             *start_offset, +				       gint             *end_offset) +{ +	GtkWidget *widget; +	gpointer layout = NULL; +	GailTextUtil *gail_text = NULL; +	gchar *retval = NULL; +	GtkTextBuffer *buffer; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return NULL; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return NULL; + +	gail_text = gail_text_util_new (); +	gail_text_util_buffer_setup (gail_text, buffer); +	retval = gail_text_util_get_text (gail_text, layout, +	                                  GAIL_AT_OFFSET, boundary_type, +	                                  offset, start_offset, end_offset); +	g_object_unref (gail_text); + +	return retval; +} + +static gchar* +ev_view_accessible_get_text_after_offset (AtkText	    *text, +					  gint		    offset, +					  AtkTextBoundary   boundary_type, +					  gint		    *start_offset, +					  gint		    *end_offset) +{ +	GtkWidget *widget; +	gpointer layout = NULL; +	GailTextUtil *gail_text = NULL; +	gchar *retval = NULL; +	GtkTextBuffer *buffer; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return NULL; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return NULL; + +	gail_text = gail_text_util_new (); +	gail_text_util_buffer_setup (gail_text, buffer); +	retval = gail_text_util_get_text (gail_text, layout, +	                                  GAIL_AFTER_OFFSET, boundary_type, +	                                  offset, start_offset, end_offset); +	g_object_unref (gail_text); + +	return retval; +} + +static gint +ev_view_accessible_get_character_count (AtkText *text) +{ +	GtkWidget *widget; +	GtkTextBuffer *buffer; +	gint retval; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return 0; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return 0; + +	retval = gtk_text_buffer_get_char_count (buffer); + +	return retval; +} + +static gint +ev_view_accessible_get_caret_offset (AtkText *text) +{ +	GtkWidget *widget; +	GtkTextBuffer *buffer; +	GtkTextMark *cursor_mark; +	GtkTextIter cursor_itr; +	gint retval; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return 0; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return 0; + +	cursor_mark = gtk_text_buffer_get_insert (buffer); +	gtk_text_buffer_get_iter_at_mark (buffer, &cursor_itr, cursor_mark); +	retval = gtk_text_iter_get_offset (&cursor_itr); + +	return retval; +} + +static gboolean +ev_view_accessible_set_caret_offset (AtkText *text, gint offset) +{ +	GtkWidget *widget; +	GtkTextBuffer *buffer; +	GtkTextIter pos_itr; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return FALSE; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return FALSE; + +	gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, offset); +	gtk_text_buffer_place_cursor (buffer, &pos_itr); + +	return TRUE; +} + +static AtkAttributeSet* +ev_view_accessible_get_run_attributes (AtkText *text, +				       gint    offset, +				       gint    *start_offset, +				       gint    *end_offset) +{ +	GtkWidget *widget; +	GtkTextBuffer *buffer; +	AtkAttributeSet *retval; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return NULL; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return NULL; + +	retval = gail_misc_buffer_get_run_attributes (buffer, offset, +	                                              start_offset, end_offset); + +	return retval; +} + +static AtkAttributeSet* +ev_view_accessible_get_default_attributes (AtkText *text) +{ +	GtkWidget *widget; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return NULL; +	return NULL; +} + +static void +ev_view_accessible_get_character_extents (AtkText      *text, +					  gint         offset, +					  gint         *x, +					  gint         *y, +					  gint         *width, +					  gint         *height, +					  AtkCoordType coords) +{ +	GtkWidget *widget, *toplevel; +	EvRectangle *areas = NULL; +	EvRectangle *rect = NULL; +	guint n_areas = 0; +	EvPageCache *page_cache; +	gint x_widget, y_widget, x_window, y_window; +	gdouble scale; +	GtkBorder border; +	GdkRectangle page_area; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return; + +	page_cache = EV_VIEW (widget)->page_cache; +	if (!page_cache) +		return; + +	ev_view_get_page_extents (EV_VIEW (widget), EV_VIEW (widget)->current_page, +	                          &page_area, &border); + +	scale = EV_VIEW (widget)->scale; +	ev_page_cache_get_text_layout (page_cache, EV_VIEW (widget)->current_page, &areas, &n_areas); +	if (!areas) +		return; + +	if (offset > n_areas) +		return; + +	rect = areas + offset; +	*x = (int)(rect->x1 * scale); +	*y = (int)(rect->y1 * scale); + +	*width = (int)(fabs (rect->x2 - rect->x1) * scale); +	*height = (int)(fabs (rect->y2 - rect->y1) * scale); + +	toplevel = gtk_widget_get_toplevel (widget); +	gtk_widget_translate_coordinates (widget, toplevel, 0, 0, &x_widget, &y_widget); +	*x += x_widget; +	*y += y_widget; + +	if (coords == ATK_XY_SCREEN) { +		gdk_window_get_origin (gtk_widget_get_window (toplevel), &x_window, &y_window); +		*x += x_window; +		*y += y_window; +	} + +	*x -= EV_VIEW (widget)->scroll_x; +	*y -= EV_VIEW (widget)->scroll_y; + +	*x += page_area.x; +	*y += page_area.y; +} + +static gint +ev_view_accessible_get_offset_at_point (AtkText      *text, +					gint         x, +					gint         y, +					AtkCoordType coords) +{ +	GtkWidget *widget, *toplevel; +	EvRectangle *areas = NULL; +	EvRectangle *rect = NULL; +	guint n_areas = 0; +	guint i = 0; +	EvPageCache *page_cache; +	gint x_window, y_window, x_widget, y_widget; +	gint offset=-1, rx, ry; +	gdouble scale; +	GtkBorder border; +	GdkRectangle page_area; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return -1; + +	page_cache = EV_VIEW (widget)->page_cache; +	if (!page_cache) +		return -1; + +	ev_view_get_page_extents (EV_VIEW (widget), EV_VIEW (widget)->current_page, +	                          &page_area, &border); + +	scale = EV_VIEW (widget)->scale; +	ev_page_cache_get_text_layout (page_cache, EV_VIEW (widget)->current_page, &areas, &n_areas); +	if (!areas) +		return -1; + +	rx = x; +	ry = y; + +	rx -= page_area.x; +	ry -= page_area.y; + +	rx += EV_VIEW (widget)->scroll_x; +	ry += EV_VIEW (widget)->scroll_y; + +	toplevel = gtk_widget_get_toplevel (widget); +	gtk_widget_translate_coordinates (widget, toplevel, 0, 0, &x_widget, &y_widget); +	rx -= x_widget; +	ry -= y_widget; + +	if (coords == ATK_XY_SCREEN) { +		gdk_window_get_origin (gtk_widget_get_window (toplevel), &x_window, &y_window); +		rx -= x_window; +		ry -= y_window; +	} + +	rx /= scale; +	ry /= scale; + +	for (i = 0; i < n_areas; i++) { +		rect = areas + i; +		if (rx >= rect->x1 && rx <= rect->x2 && +		    ry >= rect->y1 && ry <= rect->y2) +			offset = i; +	} + +	return offset; +} + +static gint +ev_view_accessible_get_n_selections (AtkText *text) +{ +	GtkWidget *widget; +	GtkTextBuffer *buffer; +	GtkTextIter start, end; +	gint select_start, select_end; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return -1; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return -1; + +	gtk_text_buffer_get_selection_bounds (buffer, &start, &end); +	select_start = gtk_text_iter_get_offset (&start); +	select_end = gtk_text_iter_get_offset (&end); + +	if (select_start != select_end) +		return 1; +	else +		return 0; +} + +static gchar* +ev_view_accessible_get_selection (AtkText *text, +				  gint    selection_num, +				  gint    *start_pos, +				  gint    *end_pos) +{ +	GtkWidget *widget; +	GtkTextBuffer *buffer; +	GtkTextIter start, end; +	gchar *retval = NULL; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return NULL; + +	if (selection_num != 0) +		return NULL; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return NULL; + +	gtk_text_buffer_get_selection_bounds (buffer, &start, &end); +	*start_pos = gtk_text_iter_get_offset (&start); +	*end_pos = gtk_text_iter_get_offset (&end); + +	if (*start_pos != *end_pos) +		retval = gtk_text_buffer_get_text (buffer, &start, &end, FALSE); + +	return retval; +} + +static gboolean +ev_view_accessible_add_selection (AtkText *text, +				  gint    start_pos, +				  gint    end_pos) +{ +	GtkWidget *widget; +	GtkTextBuffer *buffer; +	GtkTextIter pos_itr; +	GtkTextIter start, end; +	gint select_start, select_end; +	gboolean retval = FALSE; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return FALSE; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return FALSE; + +	gtk_text_buffer_get_selection_bounds (buffer, &start, &end); +	select_start = gtk_text_iter_get_offset (&start); +	select_end = gtk_text_iter_get_offset (&end); + +	/* If there is already a selection, then don't allow +	 * another to be added +	 */ +	if (select_start == select_end) { +		gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, start_pos); +		gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &pos_itr); +		gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, end_pos); +		gtk_text_buffer_move_mark_by_name (buffer, "insert", &pos_itr); + +		retval = TRUE; +	} + +	return retval; +} + +static gboolean +ev_view_accessible_remove_selection (AtkText *text, +				     gint    selection_num) +{ +	GtkWidget *widget; +	GtkTextBuffer *buffer; +	GtkTextMark *cursor_mark; +	GtkTextIter cursor_itr; +	GtkTextIter start, end; +	gint select_start, select_end; +	gboolean retval = FALSE; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return FALSE; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return FALSE; + +	gtk_text_buffer_get_selection_bounds(buffer, &start, &end); +	select_start = gtk_text_iter_get_offset(&start); +	select_end = gtk_text_iter_get_offset(&end); + +	if (select_start != select_end) { +		/* Setting the start & end of the selected region +		 * to the caret position turns off the selection. +		 */ +		cursor_mark = gtk_text_buffer_get_insert (buffer); +		gtk_text_buffer_get_iter_at_mark (buffer, &cursor_itr, cursor_mark); +		gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &cursor_itr); + +		retval = TRUE; +	} + +	return retval; +} + +static gboolean +ev_view_accessible_set_selection (AtkText *text, +				  gint	  selection_num, +				  gint    start_pos, +				  gint    end_pos) +{ +	GtkWidget *widget; +	GtkTextBuffer *buffer; +	GtkTextIter pos_itr; +	GtkTextIter start, end; +	gint select_start, select_end; +	gboolean retval = FALSE; + +	widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); +	if (widget == NULL) +		/* State is defunct */ +		return FALSE; + +	buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget)); +	if (!buffer) +		return FALSE; + +	gtk_text_buffer_get_selection_bounds(buffer, &start, &end); +	select_start = gtk_text_iter_get_offset(&start); +	select_end = gtk_text_iter_get_offset(&end); + +	if (select_start != select_end) { +		gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, start_pos); +		gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &pos_itr); +		gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, end_pos); +		gtk_text_buffer_move_mark_by_name (buffer, "insert", &pos_itr); + +		retval = TRUE; +	} + +	return retval; +} + +static void ev_view_accessible_text_iface_init (AtkTextIface * iface) +{ +	g_return_if_fail (iface != NULL); + +	iface->get_text = ev_view_accessible_get_text; +	iface->get_character_at_offset = ev_view_accessible_get_character_at_offset; +	iface->get_text_before_offset = ev_view_accessible_get_text_before_offset; +	iface->get_text_at_offset = ev_view_accessible_get_text_at_offset; +	iface->get_text_after_offset = ev_view_accessible_get_text_after_offset; +	iface->get_caret_offset = ev_view_accessible_get_caret_offset; +	iface->set_caret_offset = ev_view_accessible_set_caret_offset; +	iface->get_character_count = ev_view_accessible_get_character_count; +	iface->get_n_selections = ev_view_accessible_get_n_selections; +	iface->get_selection = ev_view_accessible_get_selection; +	iface->add_selection = ev_view_accessible_add_selection; +	iface->remove_selection = ev_view_accessible_remove_selection; +	iface->set_selection = ev_view_accessible_set_selection; +	iface->get_run_attributes = ev_view_accessible_get_run_attributes; +	iface->get_default_attributes = ev_view_accessible_get_default_attributes; +	iface->get_character_extents = ev_view_accessible_get_character_extents; +	iface->get_offset_at_point = ev_view_accessible_get_offset_at_point; +	return; +} + +static gboolean +ev_view_accessible_idle_do_action (gpointer data) +{ +	EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (data); + +	ev_view_scroll (EV_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (data))), +	                priv->idle_scroll, +	                FALSE); +	priv->action_idle_handler = 0; +	return FALSE; +} + +static gboolean +ev_view_accessible_action_do_action (AtkAction *action, +				     gint      i) +{ +	EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (action); + +	if (gtk_accessible_get_widget (GTK_ACCESSIBLE (action)) == NULL) +		return FALSE; + +	if (priv->action_idle_handler) +		return FALSE; + +	switch (i) { +	case ACTION_SCROLL_UP: +		priv->idle_scroll = GTK_SCROLL_PAGE_BACKWARD; +		break; +	case ACTION_SCROLL_DOWN: +		priv->idle_scroll = GTK_SCROLL_PAGE_FORWARD; +		break; +	default: +		return FALSE; +	} +	priv->action_idle_handler = g_idle_add (ev_view_accessible_idle_do_action, +	                                        action); +	return TRUE; +} + +static gint +ev_view_accessible_action_get_n_actions (AtkAction *action) +{ +	return LAST_ACTION; +} + +static const gchar * +ev_view_accessible_action_get_description (AtkAction *action, +					   gint      i) +{ +	EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (action); + +	if (i < 0 || i >= LAST_ACTION) +		return NULL; + +	if (priv->action_descriptions[i]) +		return priv->action_descriptions[i]; +	else +		return ev_view_accessible_action_descriptions[i]; +} + +static const gchar * +ev_view_accessible_action_get_name (AtkAction *action, +				    gint      i) +{ +	if (i < 0 || i >= LAST_ACTION) +		return NULL; + +	return ev_view_accessible_action_names[i]; +} + +static gboolean +ev_view_accessible_action_set_description (AtkAction   *action, +					   gint        i, +					   const gchar *description) +{ +	EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (action); +	gchar *old_description; + +	if (i < 0 || i >= LAST_ACTION) +		return FALSE; + +	old_description = priv->action_descriptions[i]; +	priv->action_descriptions[i] = g_strdup (description); +	g_free (old_description); + +	return TRUE; +} + +static void ev_view_accessible_action_iface_init (AtkActionIface * iface) +{ +	iface->do_action = ev_view_accessible_action_do_action; +	iface->get_n_actions = ev_view_accessible_action_get_n_actions; +	iface->get_description = ev_view_accessible_action_get_description; +	iface->get_name = ev_view_accessible_action_get_name; +	iface->set_description = ev_view_accessible_action_set_description; +} + +GType ev_view_accessible_get_type (void) +{ +	static GType type = 0; + +	if (G_UNLIKELY (type == 0)) { +		GTypeInfo tinfo = { +			0,	/* class size */ +			(GBaseInitFunc) NULL,	/* base init */ +			(GBaseFinalizeFunc) NULL,	/* base finalize */ +			(GClassInitFunc) ev_view_accessible_class_init,	/* class init */ +			(GClassFinalizeFunc) NULL,	/* class finalize */ +			NULL,	/* class data */ +			0,	/* instance size */ +			0,	/* nb preallocs */ +			(GInstanceInitFunc) NULL,	/* instance init */ +			NULL	/* value table */ +		}; + +		const GInterfaceInfo atk_text_info = { +			(GInterfaceInitFunc) +			ev_view_accessible_text_iface_init, +			(GInterfaceFinalizeFunc) NULL, +			NULL +		}; + +		const GInterfaceInfo atk_action_info = { +			(GInterfaceInitFunc) +			ev_view_accessible_action_iface_init, +			(GInterfaceFinalizeFunc) NULL, +			NULL +		}; +		/* +		 * Figure out the size of the class and instance +		 * we are deriving from +		 */ +		AtkObjectFactory *factory; +		GType derived_type; +		GTypeQuery query; +		GType derived_atk_type; + +		derived_type = g_type_parent (EV_TYPE_VIEW); +		factory = atk_registry_get_factory (atk_get_default_registry (), +		                                    derived_type); +		derived_atk_type = atk_object_factory_get_accessible_type (factory); + +		g_type_query (derived_atk_type, &query); +		tinfo.class_size = query.class_size; +		tinfo.instance_size = query.instance_size; + +		type = g_type_register_static (derived_atk_type, "EvViewAccessible", +		                               &tinfo, 0); +		g_type_add_interface_static (type, ATK_TYPE_TEXT, +		                             &atk_text_info); +		g_type_add_interface_static (type, ATK_TYPE_ACTION, +		                             &atk_action_info); +	} + +	return type; +} + +static AtkObject *ev_view_accessible_new(GObject * obj) +{ +	AtkObject *accessible; + +	g_return_val_if_fail(EV_IS_VIEW (obj), NULL); + +	accessible = g_object_new (ev_view_accessible_get_type (), NULL); +	atk_object_initialize (accessible, obj); + +	atk_object_set_name (ATK_OBJECT (accessible), _("Document View")); +	atk_object_set_role (ATK_OBJECT (accessible), ATK_ROLE_UNKNOWN); + +	return accessible; +} + +typedef AtkObjectFactory      EvViewAccessibleFactory; +typedef AtkObjectFactoryClass EvViewAccessibleFactoryClass; + +static void ev_view_accessible_factory_init (EvViewAccessibleFactory *factory) +{ +} + +static GType ev_view_accessible_factory_get_accessible_type(void) +{ +	return ev_view_accessible_get_type(); +} + +static AtkObject *ev_view_accessible_factory_create_accessible (GObject * obj) +{ +	return ev_view_accessible_new(obj); +} + +static void ev_view_accessible_factory_class_init (AtkObjectFactoryClass * klass) +{ +	klass->create_accessible = ev_view_accessible_factory_create_accessible; +	klass->get_accessible_type = ev_view_accessible_factory_get_accessible_type; +} + +G_DEFINE_TYPE (EvViewAccessibleFactory, ev_view_accessible_factory, ATK_TYPE_OBJECT_FACTORY) diff --git a/libview/ev-view-accessible.h b/libview/ev-view-accessible.h new file mode 100644 index 00000000..9ec7ed27 --- /dev/null +++ b/libview/ev-view-accessible.h @@ -0,0 +1,33 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2004 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (EVINCE_COMPILATION) +#error "This is a private header." +#endif + +#ifndef __EV_VIEW_ACCESSIBLE_H__ +#define __EV_VIEW_ACCESSIBLE_H__ + +#include "ev-view.h" + +GType ev_view_accessible_factory_get_type (void); + +#endif  /* __EV_VIEW_ACCESSIBLE_H__ */ + diff --git a/libview/ev-view-cursor.c b/libview/ev-view-cursor.c new file mode 100644 index 00000000..930e1f8e --- /dev/null +++ b/libview/ev-view-cursor.c @@ -0,0 +1,55 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2004 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "ev-view-cursor.h" + +GdkCursor * +ev_view_cursor_new (GdkDisplay  *display, +		    EvViewCursor new_cursor) +{ +	GdkCursor *cursor = NULL; + +	switch (new_cursor) { +	case EV_VIEW_CURSOR_NORMAL: +		break; +	case EV_VIEW_CURSOR_IBEAM: +		cursor = gdk_cursor_new_for_display (display, GDK_XTERM); +		break; +	case EV_VIEW_CURSOR_LINK: +		cursor = gdk_cursor_new_for_display (display, GDK_HAND2); +		break; +	case EV_VIEW_CURSOR_WAIT: +		cursor = gdk_cursor_new_for_display (display, GDK_WATCH); +		break; +	case EV_VIEW_CURSOR_HIDDEN: +		cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR); +		break; +	case EV_VIEW_CURSOR_DRAG: +		cursor = gdk_cursor_new_for_display (display, GDK_FLEUR); +		break; +	case EV_VIEW_CURSOR_AUTOSCROLL: +		cursor = gdk_cursor_new_for_display (display, GDK_DOUBLE_ARROW); +		break; +	case EV_VIEW_CURSOR_ADD: +		cursor = gdk_cursor_new_for_display (display, GDK_PLUS); +		break; +	} + +	return cursor; +} diff --git a/libview/ev-view-cursor.h b/libview/ev-view-cursor.h new file mode 100644 index 00000000..9d5e8e53 --- /dev/null +++ b/libview/ev-view-cursor.h @@ -0,0 +1,47 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2004 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef __EV_VIEW_CURSOR_H__ +#define __EV_VIEW_CURSOR_H__ + +#include <gtk/gtk.h> + +G_BEGIN_DECLS + +typedef enum { +	EV_VIEW_CURSOR_NORMAL, +	EV_VIEW_CURSOR_IBEAM, +	EV_VIEW_CURSOR_LINK, +	EV_VIEW_CURSOR_WAIT, +	EV_VIEW_CURSOR_HIDDEN, +	EV_VIEW_CURSOR_DRAG, +	EV_VIEW_CURSOR_AUTOSCROLL, +	EV_VIEW_CURSOR_ADD +} EvViewCursor; + +GdkCursor *ev_view_cursor_new (GdkDisplay  *display, +			       EvViewCursor cursor); + +G_END_DECLS + +#endif /* __EV_VIEW_CURSOR_H__ */ diff --git a/libview/ev-view-marshal.list b/libview/ev-view-marshal.list new file mode 100644 index 00000000..d7b0e75e --- /dev/null +++ b/libview/ev-view-marshal.list @@ -0,0 +1,2 @@ +VOID:ENUM,BOOLEAN +VOID:INT,INT diff --git a/libview/ev-view-presentation.c b/libview/ev-view-presentation.c new file mode 100644 index 00000000..31556fa2 --- /dev/null +++ b/libview/ev-view-presentation.c @@ -0,0 +1,1498 @@ +/* ev-view-presentation.c + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2010 Carlos Garcia Campos <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "config.h" + +#include <stdlib.h> +#include <glib/gi18n-lib.h> +#include <gdk/gdkkeysyms.h> + +#include "ev-view-presentation.h" +#include "ev-jobs.h" +#include "ev-job-scheduler.h" +#include "ev-transition-animation.h" +#include "ev-view-cursor.h" +#include "ev-page-cache.h" + +enum { +	PROP_0, +	PROP_DOCUMENT, +	PROP_CURRENT_PAGE, +	PROP_ROTATION, +	PROP_INVERTED_COLORS +}; + +enum { +	CHANGE_PAGE, +	FINISHED, +	N_SIGNALS +}; + +typedef enum { +	EV_PRESENTATION_NORMAL, +	EV_PRESENTATION_BLACK, +	EV_PRESENTATION_WHITE, +	EV_PRESENTATION_END +} EvPresentationState; + +struct _EvViewPresentation +{ +	GtkWidget base; + +	guint                  current_page; +	cairo_surface_t       *current_surface; +	EvDocument            *document; +	guint                  rotation; +	gboolean               inverted_colors; +	EvPresentationState    state; +	gdouble                scale; +	gint                   monitor_width; +	gint                   monitor_height; + +	/* Cursors */ +	EvViewCursor           cursor; +	guint                  hide_cursor_timeout_id; + +	/* Goto Window */ +	GtkWidget             *goto_window; +	GtkWidget             *goto_entry; + +	/* Page Transition */ +	guint                  trans_timeout_id; + +	/* Animations */ +	gboolean               enable_animations; +	EvTransitionAnimation *animation; + +	/* Links */ +	EvPageCache           *page_cache; + +	EvJob *prev_job; +	EvJob *curr_job; +	EvJob *next_job; +}; + +struct _EvViewPresentationClass +{ +	GtkWidgetClass base_class; + +	/* signals */ +	void (* change_page) (EvViewPresentation *pview, +			      GtkScrollType       scroll); +	void (* finished)    (EvViewPresentation *pview); +}; + +static guint signals[N_SIGNALS] = { 0 }; + +static void ev_view_presentation_next_page               (EvViewPresentation *pview); +static void ev_view_presentation_previous_page           (EvViewPresentation *pview); +static void ev_view_presentation_set_cursor_for_location (EvViewPresentation *pview, +							  gdouble             x, +							  gdouble             y); + +#define HIDE_CURSOR_TIMEOUT 5 + +G_DEFINE_TYPE (EvViewPresentation, ev_view_presentation, GTK_TYPE_WIDGET) + +static void +ev_view_presentation_set_normal (EvViewPresentation *pview) +{ +	GtkWidget *widget = GTK_WIDGET (pview); +	GtkStyle  *style; + +	if (pview->state == EV_PRESENTATION_NORMAL) +		return; + +	pview->state = EV_PRESENTATION_NORMAL; +	style = gtk_widget_get_style (widget); +	gdk_window_set_background (gtk_widget_get_window (widget), &style->black); +	gtk_widget_queue_draw (widget); +} + +static void +ev_view_presentation_set_black (EvViewPresentation *pview) +{ +	GtkWidget *widget = GTK_WIDGET (pview); +	GtkStyle  *style; + +	if (pview->state == EV_PRESENTATION_BLACK) +		return; + +	pview->state = EV_PRESENTATION_BLACK; +	style = gtk_widget_get_style (widget); +	gdk_window_set_background (gtk_widget_get_window (widget), &style->black); +	gtk_widget_queue_draw (widget); +} + +static void +ev_view_presentation_set_white (EvViewPresentation *pview) +{ +	GtkWidget *widget = GTK_WIDGET (pview); +	GtkStyle  *style; + +	if (pview->state == EV_PRESENTATION_WHITE) +		return; + +	pview->state = EV_PRESENTATION_WHITE; +	style = gtk_widget_get_style (widget); +	gdk_window_set_background (gtk_widget_get_window (widget), &style->white); +	gtk_widget_queue_draw (widget); +} + +static void +ev_view_presentation_set_end (EvViewPresentation *pview) +{ +	GtkWidget *widget = GTK_WIDGET (pview); + +	if (pview->state == EV_PRESENTATION_END) +		return; + +	pview->state = EV_PRESENTATION_END; +	gtk_widget_queue_draw (widget); +} + +static gdouble +ev_view_presentation_get_scale_for_page (EvViewPresentation *pview, +					 guint               page) +{ +	if (!ev_document_is_page_size_uniform (pview->document) || pview->scale == 0) { +		gdouble width, height; + +		ev_document_get_page_size (pview->document, page, &width, &height); +		if (pview->rotation == 90 || pview->rotation == 270) { +			gdouble tmp; + +			tmp = width; +			width = height; +			height = tmp; +		} +		pview->scale = MIN (pview->monitor_width / width, pview->monitor_height / height); +	} + +	return pview->scale; +} + +static void +ev_view_presentation_get_page_area (EvViewPresentation *pview, +				    GdkRectangle       *area) +{ +	GtkWidget    *widget = GTK_WIDGET (pview); +	GtkAllocation allocation; +	gdouble       doc_width, doc_height; +	gint          view_width, view_height; +	gdouble       scale; + +	ev_document_get_page_size (pview->document, +				   pview->current_page, +				   &doc_width, &doc_height); +	scale = ev_view_presentation_get_scale_for_page (pview, pview->current_page); + +	if (pview->rotation == 90 || pview->rotation == 270) { +		view_width = (gint)((doc_height * scale) + 0.5); +		view_height = (gint)((doc_width * scale) + 0.5); +	} else { +		view_width = (gint)((doc_width * scale) + 0.5); +		view_height = (gint)((doc_height * scale) + 0.5); +	} + +	gtk_widget_get_allocation (widget, &allocation); + +	area->x = (MAX (0, allocation.width - view_width)) / 2; +	area->y = (MAX (0, allocation.height - view_height)) / 2; +	area->width = view_width; +	area->height = view_height; +} + +/* Page Transition */ +static gboolean +transition_next_page (EvViewPresentation *pview) +{ +	ev_view_presentation_next_page (pview); + +	return FALSE; +} + +static void +ev_view_presentation_transition_stop (EvViewPresentation *pview) +{ +	if (pview->trans_timeout_id > 0) +		g_source_remove (pview->trans_timeout_id); +	pview->trans_timeout_id = 0; +} + +static void +ev_view_presentation_transition_start (EvViewPresentation *pview) +{ +	gdouble duration; + +	if (!EV_IS_DOCUMENT_TRANSITION (pview->document)) +		return; + +	ev_view_presentation_transition_stop (pview); + +	duration = ev_document_transition_get_page_duration (EV_DOCUMENT_TRANSITION (pview->document), +							     pview->current_page); +	if (duration >= 0) { +		        pview->trans_timeout_id = +				g_timeout_add_seconds (duration, +						       (GSourceFunc) transition_next_page, +						       pview); +	} +} + +/* Animations */ +static void +ev_view_presentation_animation_cancel (EvViewPresentation *pview) +{ +	if (pview->animation) { +		g_object_unref (pview->animation); +		pview->animation = NULL; +	} +} + +static void +ev_view_presentation_transition_animation_finish (EvViewPresentation *pview) +{ +	ev_view_presentation_animation_cancel (pview); +	ev_view_presentation_transition_start (pview); +	gtk_widget_queue_draw (GTK_WIDGET (pview)); +} + +static void +ev_view_presentation_transition_animation_frame (EvViewPresentation *pview, +						 gdouble             progress) +{ +	gtk_widget_queue_draw (GTK_WIDGET (pview)); +} + +static void +ev_view_presentation_animation_start (EvViewPresentation *pview, +				      gint                new_page) +{ +	EvTransitionEffect *effect = NULL; +	cairo_surface_t    *surface; +	gint                jump; + +	if (!pview->enable_animations) +		return; + +	if (pview->current_page == new_page) +		return; + +	effect = ev_document_transition_get_effect (EV_DOCUMENT_TRANSITION (pview->document), +						    new_page); +	if (!effect) +		return; + +	pview->animation = ev_transition_animation_new (effect); + +	surface = pview->curr_job ? EV_JOB_RENDER (pview->curr_job)->surface : NULL; +	ev_transition_animation_set_origin_surface (pview->animation, +						    surface != NULL ? +						    surface : pview->current_surface); + +	jump = new_page - pview->current_page; +	if (jump == -1) +		surface = pview->prev_job ? EV_JOB_RENDER (pview->prev_job)->surface : NULL; +	else if (jump == 1) +		surface = pview->next_job ? EV_JOB_RENDER (pview->next_job)->surface : NULL; +	else +		surface = NULL; +	if (surface) +		ev_transition_animation_set_dest_surface (pview->animation, surface); + +	g_signal_connect_swapped (pview->animation, "frame", +				  G_CALLBACK (ev_view_presentation_transition_animation_frame), +				  pview); +	g_signal_connect_swapped (pview->animation, "finished", +				  G_CALLBACK (ev_view_presentation_transition_animation_finish), +				  pview); +} + +/* Page Navigation */ +static void +job_finished_cb (EvJob              *job, +		 EvViewPresentation *pview) +{ +	EvJobRender *job_render = EV_JOB_RENDER (job); + +	if (pview->inverted_colors) +		ev_document_misc_invert_surface (job_render->surface); + +	if (job != pview->curr_job) +		return; + +	if (pview->animation) { +		ev_transition_animation_set_dest_surface (pview->animation, +							  job_render->surface); +	} else { +		ev_view_presentation_transition_start (pview); +		gtk_widget_queue_draw (GTK_WIDGET (pview)); +	} +} + +static EvJob * +ev_view_presentation_schedule_new_job (EvViewPresentation *pview, +				       gint                page, +				       EvJobPriority       priority) +{ +	EvJob  *job; +	gdouble scale; + +	if (page < 0 || page >= ev_document_get_n_pages (pview->document)) +		return NULL; + +	scale = ev_view_presentation_get_scale_for_page (pview, page); +	job = ev_job_render_new (pview->document, page, pview->rotation, scale, 0, 0); +	g_signal_connect (job, "finished", +			  G_CALLBACK (job_finished_cb), +			  pview); +	ev_job_scheduler_push_job (job, priority); + +	return job; +} + +static void +ev_view_presentation_delete_job (EvViewPresentation *pview, +				 EvJob              *job) +{ +	if (!job) +		return; + +	g_signal_handlers_disconnect_by_func (job, job_finished_cb, pview); +	ev_job_cancel (job); +	g_object_unref (job); +} + +static void +ev_view_presentation_update_current_page (EvViewPresentation *pview, +					  guint               page) +{ +	gint jump; + +	if (page < 0 || page >= ev_document_get_n_pages (pview->document)) +		return; + +	ev_view_presentation_animation_cancel (pview); +	ev_view_presentation_animation_start (pview, page); + +	jump = page - pview->current_page; + +	switch (jump) { +	case 0: +		if (!pview->curr_job) +			pview->curr_job = ev_view_presentation_schedule_new_job (pview, page, EV_JOB_PRIORITY_URGENT); +		if (!pview->next_job) +			pview->next_job = ev_view_presentation_schedule_new_job (pview, page + 1, EV_JOB_PRIORITY_HIGH); +		if (!pview->prev_job) +			pview->prev_job = ev_view_presentation_schedule_new_job (pview, page - 1, EV_JOB_PRIORITY_LOW); +		break; +	case -1: +		ev_view_presentation_delete_job (pview, pview->next_job); +		pview->next_job = pview->curr_job; +		pview->curr_job = pview->prev_job; + +		if (!pview->curr_job) +			pview->curr_job = ev_view_presentation_schedule_new_job (pview, page, EV_JOB_PRIORITY_URGENT); +		else +			ev_job_scheduler_update_job (pview->curr_job, EV_JOB_PRIORITY_URGENT); +		pview->prev_job = ev_view_presentation_schedule_new_job (pview, page - 1, EV_JOB_PRIORITY_HIGH); +		ev_job_scheduler_update_job (pview->next_job, EV_JOB_PRIORITY_LOW); + +		break; +	case 1: +		ev_view_presentation_delete_job (pview, pview->prev_job); +		pview->prev_job = pview->curr_job; +		pview->curr_job = pview->next_job; + +		if (!pview->curr_job) +			pview->curr_job = ev_view_presentation_schedule_new_job (pview, page, EV_JOB_PRIORITY_URGENT); +		else +			ev_job_scheduler_update_job (pview->curr_job, EV_JOB_PRIORITY_URGENT); +		pview->next_job = ev_view_presentation_schedule_new_job (pview, page + 1, EV_JOB_PRIORITY_HIGH); +		ev_job_scheduler_update_job (pview->prev_job, EV_JOB_PRIORITY_LOW); + +		break; +	case -2: +		ev_view_presentation_delete_job (pview, pview->next_job); +		ev_view_presentation_delete_job (pview, pview->curr_job); +		pview->next_job = pview->prev_job; + +		pview->curr_job = ev_view_presentation_schedule_new_job (pview, page, EV_JOB_PRIORITY_URGENT); +		pview->prev_job = ev_view_presentation_schedule_new_job (pview, page - 1, EV_JOB_PRIORITY_HIGH); +		if (!pview->next_job) +			pview->next_job = ev_view_presentation_schedule_new_job (pview, page + 1, EV_JOB_PRIORITY_LOW); +		else +			ev_job_scheduler_update_job (pview->next_job, EV_JOB_PRIORITY_LOW); +		break; +	case 2: +		ev_view_presentation_delete_job (pview, pview->prev_job); +		ev_view_presentation_delete_job (pview, pview->curr_job); +		pview->prev_job = pview->next_job; + +		pview->curr_job = ev_view_presentation_schedule_new_job (pview, page, EV_JOB_PRIORITY_URGENT); +		pview->next_job = ev_view_presentation_schedule_new_job (pview, page + 1, EV_JOB_PRIORITY_HIGH); +		if (!pview->prev_job) +			pview->prev_job = ev_view_presentation_schedule_new_job (pview, page - 1, EV_JOB_PRIORITY_LOW); +		else +			ev_job_scheduler_update_job (pview->prev_job, EV_JOB_PRIORITY_LOW); +		break; +	default: +		ev_view_presentation_delete_job (pview, pview->prev_job); +		ev_view_presentation_delete_job (pview, pview->curr_job); +		ev_view_presentation_delete_job (pview, pview->next_job); + +		pview->curr_job = ev_view_presentation_schedule_new_job (pview, page, EV_JOB_PRIORITY_URGENT); +		if (jump > 0) { +			pview->next_job = ev_view_presentation_schedule_new_job (pview, page + 1, EV_JOB_PRIORITY_HIGH); +			pview->prev_job = ev_view_presentation_schedule_new_job (pview, page - 1, EV_JOB_PRIORITY_LOW); +		} else { +			pview->prev_job = ev_view_presentation_schedule_new_job (pview, page - 1, EV_JOB_PRIORITY_HIGH); +			pview->next_job = ev_view_presentation_schedule_new_job (pview, page + 1, EV_JOB_PRIORITY_LOW); +		} +	} + +	pview->current_page = page; + +	if (pview->page_cache) +		ev_page_cache_set_page_range (pview->page_cache, page, page); + +	if (pview->cursor != EV_VIEW_CURSOR_HIDDEN) { +		gint x, y; + +		gtk_widget_get_pointer (GTK_WIDGET (pview), &x, &y); +		ev_view_presentation_set_cursor_for_location (pview, x, y); +	} + +	if (EV_JOB_RENDER (pview->curr_job)->surface) +		gtk_widget_queue_draw (GTK_WIDGET (pview)); +} + +static void +ev_view_presentation_next_page (EvViewPresentation *pview) +{ +	guint n_pages; +	gint  new_page; + +	switch (pview->state) { +	case EV_PRESENTATION_BLACK: +	case EV_PRESENTATION_WHITE: +		ev_view_presentation_set_normal (pview); +	case EV_PRESENTATION_END: +		return; +	case EV_PRESENTATION_NORMAL: +		break; +	} + +	n_pages = ev_document_get_n_pages (pview->document); +	new_page = pview->current_page + 1; + +	if (new_page == n_pages) +		ev_view_presentation_set_end (pview); +	else +		ev_view_presentation_update_current_page (pview, new_page); +} + +static void +ev_view_presentation_previous_page (EvViewPresentation *pview) +{ +	gint new_page = 0; + +	switch (pview->state) { +	case EV_PRESENTATION_BLACK: +	case EV_PRESENTATION_WHITE: +		ev_view_presentation_set_normal (pview); +		return; +	case EV_PRESENTATION_END: +		pview->state = EV_PRESENTATION_NORMAL; +		new_page = pview->current_page; +		break; +	case EV_PRESENTATION_NORMAL: +		new_page = pview->current_page - 1; +		break; +	} + +	ev_view_presentation_update_current_page (pview, new_page); +} + +/* Goto Window */ +#define KEY_IS_NUMERIC(keyval) \ +	((keyval >= GDK_0 && keyval <= GDK_9) || (keyval >= GDK_KP_0 && keyval <= GDK_KP_9)) + +/* Cut and paste from gtkwindow.c */ +static void +send_focus_change (GtkWidget *widget, +		   gboolean   in) +{ +	GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE); + +	fevent->focus_change.type = GDK_FOCUS_CHANGE; +	fevent->focus_change.window = gtk_widget_get_window (widget); +	fevent->focus_change.in = in; +	if (fevent->focus_change.window) +		g_object_ref (fevent->focus_change.window); + +	gtk_widget_send_focus_change (widget, fevent); + +	gdk_event_free (fevent); +} + +static void +ev_view_presentation_goto_window_hide (EvViewPresentation *pview) +{ +	/* send focus-in event */ +	send_focus_change (pview->goto_entry, FALSE); +	gtk_widget_hide (pview->goto_window); +	gtk_entry_set_text (GTK_ENTRY (pview->goto_entry), ""); +} + +static gboolean +ev_view_presentation_goto_window_delete_event (GtkWidget          *widget, +					       GdkEventAny        *event, +					       EvViewPresentation *pview) +{ +	ev_view_presentation_goto_window_hide (pview); + +	return TRUE; +} + +static gboolean +ev_view_presentation_goto_window_key_press_event (GtkWidget          *widget, +						  GdkEventKey        *event, +						  EvViewPresentation *pview) +{ +	switch (event->keyval) { +	case GDK_Escape: +	case GDK_Tab: +	case GDK_KP_Tab: +	case GDK_ISO_Left_Tab: +		ev_view_presentation_goto_window_hide (pview); +		return TRUE; +	case GDK_Return: +	case GDK_KP_Enter: +	case GDK_ISO_Enter: +	case GDK_BackSpace: +	case GDK_Delete: +		return FALSE; +	default: +		if (!KEY_IS_NUMERIC (event->keyval)) +			return TRUE; +	} + +	return FALSE; +} + +static gboolean +ev_view_presentation_goto_window_button_press_event (GtkWidget          *widget, +						     GdkEventButton     *event, +						     EvViewPresentation *pview) +{ +	ev_view_presentation_goto_window_hide (pview); + +	return TRUE; +} + +static void +ev_view_presentation_goto_entry_activate (GtkEntry           *entry, +					  EvViewPresentation *pview) +{ +	const gchar *text; +	gint         page; + +	text = gtk_entry_get_text (entry); +	page = atoi (text) - 1; + +	ev_view_presentation_goto_window_hide (pview); +	ev_view_presentation_update_current_page (pview, page); +} + +static void +ev_view_presentation_goto_window_create (EvViewPresentation *pview) +{ +	GtkWidget *frame, *hbox, *label; +	GtkWindow *toplevel, *goto_window; + +	toplevel = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (pview))); +	goto_window = GTK_WINDOW (pview->goto_window); + +	if (pview->goto_window) { +		if (gtk_window_has_group (toplevel)) +			gtk_window_group_add_window (gtk_window_get_group (toplevel), goto_window); +		else if (gtk_window_has_group (goto_window)) +			gtk_window_group_remove_window (gtk_window_get_group (goto_window), goto_window); + +		return; +	} + +	pview->goto_window = gtk_window_new (GTK_WINDOW_POPUP); +	gtk_window_set_screen (goto_window, gtk_widget_get_screen (GTK_WIDGET (pview))); + +	if (gtk_window_has_group (toplevel)) +		gtk_window_group_add_window (gtk_window_get_group (toplevel), goto_window); + +	gtk_window_set_modal (goto_window, TRUE); + +	g_signal_connect (pview->goto_window, "delete_event", +			  G_CALLBACK (ev_view_presentation_goto_window_delete_event), +			  pview); +	g_signal_connect (pview->goto_window, "key_press_event", +			  G_CALLBACK (ev_view_presentation_goto_window_key_press_event), +			  pview); +	g_signal_connect (pview->goto_window, "button_press_event", +			  G_CALLBACK (ev_view_presentation_goto_window_button_press_event), +			  pview); + +	frame = gtk_frame_new (NULL); +	gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN); +	gtk_container_add (GTK_CONTAINER (pview->goto_window), frame); +	gtk_widget_show (frame); + +	hbox = gtk_hbox_new (FALSE, 0); +	gtk_container_set_border_width (GTK_CONTAINER (hbox), 3); +	gtk_container_add (GTK_CONTAINER (frame), hbox); +	gtk_widget_show (hbox); + +	label = gtk_label_new (_("Jump to page:")); +	gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 3); +	gtk_widget_show (label); +	gtk_widget_realize (label); + +	pview->goto_entry = gtk_entry_new (); +	g_signal_connect (pview->goto_entry, "activate", +			  G_CALLBACK (ev_view_presentation_goto_entry_activate), +			  pview); +	gtk_box_pack_start (GTK_BOX (hbox), pview->goto_entry, TRUE, TRUE, 0); +	gtk_widget_show (pview->goto_entry); +	gtk_widget_realize (pview->goto_entry); +} + +static void +ev_view_presentation_goto_entry_grab_focus (EvViewPresentation *pview) +{ +	GtkWidgetClass *entry_parent_class; + +	entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (pview->goto_entry)); +	(entry_parent_class->grab_focus) (pview->goto_entry); + +	send_focus_change (pview->goto_entry, TRUE); +} + +static void +ev_view_presentation_goto_window_send_key_event (EvViewPresentation *pview, +						 GdkEvent           *event) +{ +	GdkEventKey *new_event; +	GdkScreen   *screen; + +	/* Move goto window off screen */ +	screen = gtk_widget_get_screen (GTK_WIDGET (pview)); +	gtk_window_move (GTK_WINDOW (pview->goto_window), +			 gdk_screen_get_width (screen) + 1, +			 gdk_screen_get_height (screen) + 1); +	gtk_widget_show (pview->goto_window); + +	new_event = (GdkEventKey *) gdk_event_copy (event); +	g_object_unref (new_event->window); +	new_event->window = gtk_widget_get_window (pview->goto_window); +	if (new_event->window) +		g_object_ref (new_event->window); +	gtk_widget_realize (pview->goto_window); + +	gtk_widget_event (pview->goto_window, (GdkEvent *)new_event); +	gdk_event_free ((GdkEvent *)new_event); +	gtk_widget_hide (pview->goto_window); +} + +/* Links */ +static gboolean +ev_view_presentation_link_is_supported (EvViewPresentation *pview, +					EvLink             *link) +{ +	EvLinkAction *action; + +	action = ev_link_get_action (link); +	if (!action) +		return FALSE; + +	switch (ev_link_action_get_action_type (action)) { +	case EV_LINK_ACTION_TYPE_GOTO_DEST: +		return ev_link_action_get_dest (action) != NULL; +	case EV_LINK_ACTION_TYPE_NAMED: +		return TRUE; +	default: +		return FALSE; +	} + +	return FALSE; +} + +static EvLink * +ev_view_presentation_get_link_at_location (EvViewPresentation *pview, +					   gdouble             x, +					   gdouble             y) +{ +	GdkRectangle   page_area; +	EvMappingList *link_mapping; +	EvLink        *link; +	gdouble        width, height; +	gdouble        new_x, new_y; +	gdouble        scale; + +	if (!pview->page_cache) +		return NULL; + +	ev_document_get_page_size (pview->document, pview->current_page, &width, &height); +	ev_view_presentation_get_page_area (pview, &page_area); +	scale = ev_view_presentation_get_scale_for_page (pview, pview->current_page); +	x = (x - page_area.x) / scale; +	y = (y - page_area.y) / scale; +	switch (pview->rotation) { +	case 0: +	case 360: +		new_x = x; +		new_y = y; +		break; +	case 90: +		new_x = y; +		new_y = height - x; +		break; +	case 180: +		new_x = width - x; +		new_y = height - y; +		break; +	case 270: +		new_x = width - y; +		new_y = x; +		break; +	default: +		g_assert_not_reached (); +	} + +	link_mapping = ev_page_cache_get_link_mapping (pview->page_cache, pview->current_page); + +	link = link_mapping ? ev_mapping_list_get_data (link_mapping, new_x, new_y) : NULL; + +	return link && ev_view_presentation_link_is_supported (pview, link) ? link : NULL; +} + +static void +ev_vew_presentation_goto_link_dest (EvViewPresentation *pview, +				    EvLink             *link) +{ +	EvLinkAction *action; + +	action = ev_link_get_action (link); + +	if (ev_link_action_get_action_type (action) == EV_LINK_ACTION_TYPE_NAMED) { +		const gchar *name = ev_link_action_get_name (action); + +		if (g_ascii_strcasecmp (name, "FirstPage") == 0) { +			ev_view_presentation_update_current_page (pview, 0); +		} else if (g_ascii_strcasecmp (name, "PrevPage") == 0) { +			ev_view_presentation_update_current_page (pview, pview->current_page - 1); +		} else if (g_ascii_strcasecmp (name, "NextPage") == 0) { +			ev_view_presentation_update_current_page (pview, pview->current_page + 1); +		} else if (g_ascii_strcasecmp (name, "LastPage") == 0) { +			gint n_pages; + +			n_pages = ev_document_get_n_pages (pview->document); +			ev_view_presentation_update_current_page (pview, n_pages - 1); +		} +	} else { +		EvLinkDest *dest; +		gint        page; + +		dest = ev_link_action_get_dest (action); +		page = ev_document_links_get_dest_page (EV_DOCUMENT_LINKS (pview->document), dest); +		ev_view_presentation_update_current_page (pview, page); +	} +} + +/* Cursors */ +static void +ev_view_presentation_set_cursor (EvViewPresentation *pview, +				 EvViewCursor        view_cursor) +{ +	GtkWidget  *widget; +	GdkCursor  *cursor; + +	if (pview->cursor == view_cursor) +		return; + +	widget = GTK_WIDGET (pview); +	if (!gtk_widget_get_realized (widget)) +		gtk_widget_realize (widget); + +	pview->cursor = view_cursor; + +	cursor = ev_view_cursor_new (gtk_widget_get_display (widget), view_cursor); +	gdk_window_set_cursor (gtk_widget_get_window (widget), cursor); +	gdk_flush (); +	if (cursor) +		gdk_cursor_unref (cursor); +} + +static void +ev_view_presentation_set_cursor_for_location (EvViewPresentation *pview, +					      gdouble             x, +					      gdouble             y) +{ +	if (ev_view_presentation_get_link_at_location (pview, x, y)) +		ev_view_presentation_set_cursor (pview, EV_VIEW_CURSOR_LINK); +	else +		ev_view_presentation_set_cursor (pview, EV_VIEW_CURSOR_NORMAL); +} + +static gboolean +hide_cursor_timeout_cb (EvViewPresentation *pview) +{ +	ev_view_presentation_set_cursor (pview, EV_VIEW_CURSOR_HIDDEN); +	pview->hide_cursor_timeout_id = 0; + +	return FALSE; +} + +static void +ev_view_presentation_hide_cursor_timeout_stop (EvViewPresentation *pview) +{ +	if (pview->hide_cursor_timeout_id > 0) +		g_source_remove (pview->hide_cursor_timeout_id); +	pview->hide_cursor_timeout_id = 0; +} + +static void +ev_view_presentation_hide_cursor_timeout_start (EvViewPresentation *pview) +{ +	ev_view_presentation_hide_cursor_timeout_stop (pview); +	pview->hide_cursor_timeout_id = +		g_timeout_add_seconds (HIDE_CURSOR_TIMEOUT, +				       (GSourceFunc)hide_cursor_timeout_cb, +				       pview); +} + +static void +ev_view_presentation_update_current_surface (EvViewPresentation *pview, +					     cairo_surface_t    *surface) +{ +	if (!surface || pview->current_surface == surface) +		return; + +	cairo_surface_reference (surface); +	if (pview->current_surface) +		cairo_surface_destroy (pview->current_surface); +	pview->current_surface = surface; +} + +static void +ev_view_presentation_destroy (GtkObject *object) +{ +	EvViewPresentation *pview = EV_VIEW_PRESENTATION (object); + +	if (pview->document) { +		g_object_unref (pview->document); +		pview->document = NULL; +	} + +	ev_view_presentation_animation_cancel (pview); +	ev_view_presentation_transition_stop (pview); +	ev_view_presentation_hide_cursor_timeout_stop (pview); + +	if (pview->curr_job) { +		ev_view_presentation_delete_job (pview, pview->curr_job); +		pview->curr_job = NULL; +	} + +	if (pview->prev_job) { +		ev_view_presentation_delete_job (pview, pview->prev_job); +		pview->prev_job = NULL; +	} + +	if (pview->next_job) { +		ev_view_presentation_delete_job (pview, pview->next_job); +		pview->next_job = NULL; +	} + +	if (pview->current_surface) { +		cairo_surface_destroy (pview->current_surface); +		pview->current_surface = NULL; +	} + +	if (pview->page_cache) { +		g_object_unref (pview->page_cache); +		pview->page_cache = NULL; +	} + +	if (pview->goto_window) { +		gtk_widget_destroy (pview->goto_window); +		pview->goto_window = NULL; +		pview->goto_entry = NULL; +	} + +	GTK_OBJECT_CLASS (ev_view_presentation_parent_class)->destroy (object); +} + +static void +ev_view_presentation_size_request (GtkWidget      *widget, +				   GtkRequisition *requisition) +{ +	requisition->width = 0; +	requisition->height = 0; +} + +static void +ev_view_presentation_draw_end_page (EvViewPresentation *pview) +{ +	GtkWidget *widget = GTK_WIDGET (pview); +	PangoLayout *layout; +	PangoFontDescription *font_desc; +	gchar *markup; +	GtkAllocation allocation; +	GdkRectangle area = {0}; +	const gchar *text = _("End of presentation. Click to exit."); + +	if (pview->state != EV_PRESENTATION_END) +		return; + +	layout = gtk_widget_create_pango_layout (widget, NULL); +	markup = g_strdup_printf ("<span foreground=\"white\">%s</span>", text); +	pango_layout_set_markup (layout, markup, -1); +	g_free (markup); + +	font_desc = pango_font_description_new (); +	pango_font_description_set_size (font_desc, 16 * PANGO_SCALE); +	pango_layout_set_font_description (layout, font_desc); + +	gtk_widget_get_allocation (widget, &allocation); +	area.width = allocation.width; +	area.height = allocation.height; + +	gtk_paint_layout (gtk_widget_get_style (widget), +			  gtk_widget_get_window (widget), +			  gtk_widget_get_state (widget), +			  FALSE, +			  &area, +			  widget, +			  NULL, +			  15, +			  15, +			  layout); + +	pango_font_description_free (font_desc); +	g_object_unref (layout); +} + +static gboolean +ev_view_presentation_expose_event (GtkWidget      *widget, +				   GdkEventExpose *event) +{ +	EvViewPresentation *pview = EV_VIEW_PRESENTATION (widget); +	GdkRectangle        page_area; +	GdkRectangle        overlap; +	cairo_surface_t    *surface; +	cairo_t            *cr; + +	switch (pview->state) { +	case EV_PRESENTATION_END: +		ev_view_presentation_draw_end_page (pview); +		return FALSE; +	case EV_PRESENTATION_BLACK: +	case EV_PRESENTATION_WHITE: +		return FALSE; +	case EV_PRESENTATION_NORMAL: +		break; +	} + +	if (pview->animation) { +		if (ev_transition_animation_ready (pview->animation)) { +			ev_view_presentation_get_page_area (pview, &page_area); + +			cr = gdk_cairo_create (gtk_widget_get_window (widget)); + +			/* normalize to x=0, y=0 */ +			cairo_translate (cr, page_area.x, page_area.y); +			page_area.x = page_area.y = 0; + +			/* Try to fix rounding errors */ +			page_area.width--; + +			ev_transition_animation_paint (pview->animation, cr, page_area); +			cairo_destroy (cr); +		} + +		return TRUE; +	} + +	surface = pview->curr_job ? EV_JOB_RENDER (pview->curr_job)->surface : NULL; +	if (surface) { +		ev_view_presentation_update_current_surface (pview, surface); +	} else if (pview->current_surface) { +		surface = pview->current_surface; +	} else { +		return FALSE; +	} + +	ev_view_presentation_get_page_area (pview, &page_area); +	if (gdk_rectangle_intersect (&page_area, &(event->area), &overlap)) { +		cr = gdk_cairo_create (gtk_widget_get_window (widget)); + +		/* Try to fix rounding errors. See bug #438760 */ +		if (overlap.width == page_area.width) +			overlap.width--; + +		cairo_rectangle (cr, overlap.x, overlap.y, overlap.width, overlap.height); +		cairo_set_source_surface (cr, surface, page_area.x, page_area.y); +		cairo_fill (cr); +		cairo_destroy (cr); +	} + +	return FALSE; +} + +static gboolean +ev_view_presentation_key_press_event (GtkWidget   *widget, +				      GdkEventKey *event) +{ +	EvViewPresentation *pview = EV_VIEW_PRESENTATION (widget); + +	if (pview->state == EV_PRESENTATION_END) +		return gtk_bindings_activate_event (GTK_OBJECT (widget), event); + +	switch (event->keyval) { +	case GDK_b: +	case GDK_B: +	case GDK_period: +	case GDK_KP_Decimal: +		if (pview->state == EV_PRESENTATION_BLACK) +			ev_view_presentation_set_normal (pview); +		else +			ev_view_presentation_set_black (pview); + +		return TRUE; +	case GDK_w: +	case GDK_W: +		if (pview->state == EV_PRESENTATION_WHITE) +			ev_view_presentation_set_normal (pview); +		else +			ev_view_presentation_set_white (pview); + +		return TRUE; +	case GDK_Home: +		if (pview->state == EV_PRESENTATION_NORMAL) { +			ev_view_presentation_update_current_page (pview, 0); +			return TRUE; +		} +		break; +	case GDK_End: +		if (pview->state == EV_PRESENTATION_NORMAL) { +			gint page; + +			page = ev_document_get_n_pages (pview->document) - 1; +			ev_view_presentation_update_current_page (pview, page); + +			return TRUE; +		} +		break; +	default: +		break; +	} + +	ev_view_presentation_set_normal (pview); + +	if (ev_document_get_n_pages (pview->document) > 1 && KEY_IS_NUMERIC (event->keyval)) { +		gint x, y; + +		ev_view_presentation_goto_window_create (pview); +		ev_view_presentation_goto_window_send_key_event (pview, (GdkEvent *)event); +		gtk_widget_get_pointer (GTK_WIDGET (pview), &x, &y); +		gtk_window_move (GTK_WINDOW (pview->goto_window), x, y); +		gtk_widget_show (pview->goto_window); +		ev_view_presentation_goto_entry_grab_focus (pview); + +		return TRUE; +	} + +	return gtk_bindings_activate_event (GTK_OBJECT (widget), event); +} + +static gboolean +ev_view_presentation_button_release_event (GtkWidget      *widget, +					   GdkEventButton *event) +{ +	EvViewPresentation *pview = EV_VIEW_PRESENTATION (widget); + +	switch (event->button) { +	case 1: { +		EvLink *link; + +		if (pview->state == EV_PRESENTATION_END) { +			g_signal_emit (pview, signals[FINISHED], 0, NULL); + +			return FALSE; +		} + +		link = ev_view_presentation_get_link_at_location (pview, +								  event->x, +								  event->y); +		if (link) +			ev_vew_presentation_goto_link_dest (pview, link); +		else +			ev_view_presentation_next_page (pview); +	} +		break; +	case 3: +		ev_view_presentation_previous_page (pview); +		break; +	default: +		break; +	} + +	return FALSE; +} + +static gint +ev_view_presentation_focus_out (GtkWidget     *widget, +				GdkEventFocus *event) +{ +	EvViewPresentation *pview = EV_VIEW_PRESENTATION (widget); + +	if (pview->goto_window) +		ev_view_presentation_goto_window_hide (pview); + +	return FALSE; +} + +static gboolean +ev_view_presentation_motion_notify_event (GtkWidget      *widget, +					  GdkEventMotion *event) +{ +	EvViewPresentation *pview = EV_VIEW_PRESENTATION (widget); + +	ev_view_presentation_hide_cursor_timeout_start (pview); +	ev_view_presentation_set_cursor_for_location (pview, event->x, event->y); + +	return FALSE; +} + +static gboolean +init_presentation (GtkWidget *widget) +{ +	EvViewPresentation *pview = EV_VIEW_PRESENTATION (widget); +	GdkScreen          *screen = gtk_widget_get_screen (widget); +	GdkRectangle        monitor; +	gint                monitor_num; + +	monitor_num = gdk_screen_get_monitor_at_window (screen, gtk_widget_get_window (widget)); +	gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor); +	pview->monitor_width = monitor.width; +	pview->monitor_height = monitor.height; + +	ev_view_presentation_update_current_page (pview, pview->current_page); +	ev_view_presentation_hide_cursor_timeout_start (pview); + +	return FALSE; +} + +static void +ev_view_presentation_realize (GtkWidget *widget) +{ +	GdkWindow    *window; +	GtkStyle     *style; +	GdkWindowAttr attributes; +	GtkAllocation allocation; + +	gtk_widget_set_realized (widget, TRUE); + +	attributes.window_type = GDK_WINDOW_CHILD; +	attributes.wclass = GDK_INPUT_OUTPUT; +	attributes.visual = gtk_widget_get_visual (widget); +	attributes.colormap = gtk_widget_get_colormap (widget); + +	gtk_widget_get_allocation (widget, &allocation); +	attributes.x = allocation.x; +	attributes.y = allocation.y; +	attributes.width = allocation.width; +	attributes.height = allocation.height; +	attributes.event_mask = GDK_EXPOSURE_MASK | +		GDK_BUTTON_PRESS_MASK | +		GDK_BUTTON_RELEASE_MASK | +		GDK_SCROLL_MASK | +		GDK_KEY_PRESS_MASK | +		GDK_POINTER_MOTION_MASK | +		GDK_POINTER_MOTION_HINT_MASK | +		GDK_ENTER_NOTIFY_MASK | +		GDK_LEAVE_NOTIFY_MASK; + +	window = gdk_window_new (gtk_widget_get_parent_window (widget), +				 &attributes, +				 GDK_WA_X | GDK_WA_Y | +				 GDK_WA_COLORMAP | +				 GDK_WA_VISUAL); + +	gdk_window_set_user_data (window, widget); +	gtk_widget_set_window (widget, window); + +	gtk_widget_style_attach (widget); +	style = gtk_widget_get_style (widget); +	gdk_window_set_background (window, &style->black); + +	g_idle_add ((GSourceFunc)init_presentation, widget); +} + +static void +ev_view_presentation_change_page (EvViewPresentation *pview, +				  GtkScrollType       scroll) +{ +	switch (scroll) { +	case GTK_SCROLL_PAGE_FORWARD: +		ev_view_presentation_next_page (pview); +		break; +	case GTK_SCROLL_PAGE_BACKWARD: +		ev_view_presentation_previous_page (pview); +		break; +	default: +		g_assert_not_reached (); +	} +} + +static gboolean +ev_view_presentation_scroll_event (GtkWidget      *widget, +				   GdkEventScroll *event) +{ +	EvViewPresentation *pview = EV_VIEW_PRESENTATION (widget); +	guint               state; + +	state = event->state & gtk_accelerator_get_default_mod_mask (); +	if (state != 0) +		return FALSE; + +	switch (event->direction) { +	case GDK_SCROLL_DOWN: +	case GDK_SCROLL_RIGHT: +		ev_view_presentation_change_page (pview, GTK_SCROLL_PAGE_FORWARD); +		break; +	case GDK_SCROLL_UP: +	case GDK_SCROLL_LEFT: +		ev_view_presentation_change_page (pview, GTK_SCROLL_PAGE_BACKWARD); +		break; +	} + +	return TRUE; +} + + +static void +add_change_page_binding_keypad (GtkBindingSet  *binding_set, +				guint           keyval, +				GdkModifierType modifiers, +				GtkScrollType   scroll) +{ +	guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left; + +	gtk_binding_entry_add_signal (binding_set, keyval, modifiers, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, scroll); +	gtk_binding_entry_add_signal (binding_set, keypad_keyval, modifiers, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, scroll); +} + +static void +ev_view_presentation_set_property (GObject      *object, +				   guint         prop_id, +				   const GValue *value, +				   GParamSpec   *pspec) +{ +	EvViewPresentation *pview = EV_VIEW_PRESENTATION (object); + +	switch (prop_id) { +	case PROP_DOCUMENT: +		pview->document = g_value_dup_object (value); +		pview->enable_animations = EV_IS_DOCUMENT_TRANSITION (pview->document); +		break; +	case PROP_CURRENT_PAGE: +		pview->current_page = g_value_get_uint (value); +		break; +	case PROP_ROTATION: +		pview->rotation = g_value_get_uint (value); +		break; +	case PROP_INVERTED_COLORS: +		pview->inverted_colors = g_value_get_boolean (value); +		break; +	default: +		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); +	} +} + +static GObject * +ev_view_presentation_constructor (GType                  type, +				  guint                  n_construct_properties, +				  GObjectConstructParam *construct_params) +{ +	GObject            *object; +	EvViewPresentation *pview; + +	object = G_OBJECT_CLASS (ev_view_presentation_parent_class)->constructor (type, +										  n_construct_properties, +										  construct_params); +	pview = EV_VIEW_PRESENTATION (object); + +	if (EV_IS_DOCUMENT_LINKS (pview->document)) { +		pview->page_cache = ev_page_cache_new (pview->document); +		ev_page_cache_set_flags (pview->page_cache, EV_PAGE_DATA_INCLUDE_LINKS); +	} + +	return object; +} + +static void +ev_view_presentation_class_init (EvViewPresentationClass *klass) +{ +	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); +	GObjectClass   *gobject_class = G_OBJECT_CLASS (klass); +	GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (klass); +	GtkBindingSet  *binding_set; + +	klass->change_page = ev_view_presentation_change_page; + +	widget_class->size_request = ev_view_presentation_size_request; +	widget_class->realize = ev_view_presentation_realize; +	widget_class->expose_event = ev_view_presentation_expose_event; +	widget_class->key_press_event = ev_view_presentation_key_press_event; +	widget_class->button_release_event = ev_view_presentation_button_release_event; +	widget_class->focus_out_event = ev_view_presentation_focus_out; +	widget_class->motion_notify_event = ev_view_presentation_motion_notify_event; +	widget_class->scroll_event = ev_view_presentation_scroll_event; + +	gtk_object_class->destroy = ev_view_presentation_destroy; + +	gobject_class->constructor = ev_view_presentation_constructor; +	gobject_class->set_property = ev_view_presentation_set_property; + +	g_object_class_install_property (gobject_class, +					 PROP_DOCUMENT, +					 g_param_spec_object ("document", +							      "Document", +							      "Document", +							      EV_TYPE_DOCUMENT, +							      G_PARAM_WRITABLE | +							      G_PARAM_CONSTRUCT_ONLY)); +	g_object_class_install_property (gobject_class, +					 PROP_CURRENT_PAGE, +					 g_param_spec_uint ("current_page", +							    "Current Page", +							    "The current page", +							    0, G_MAXUINT, 0, +							    G_PARAM_WRITABLE | +							    G_PARAM_CONSTRUCT_ONLY)); +	g_object_class_install_property (gobject_class, +					 PROP_ROTATION, +					 g_param_spec_uint ("rotation", +							    "Rotation", +							    "Current rotation angle", +							    0, 360, 0, +							    G_PARAM_WRITABLE | +							    G_PARAM_CONSTRUCT_ONLY)); +	g_object_class_install_property (gobject_class, +					 PROP_INVERTED_COLORS, +					 g_param_spec_boolean ("inverted_colors", +							       "Inverted Colors", +							       "Whether presentation is displayed with inverted colors", +							       FALSE, +							       G_PARAM_WRITABLE | +							       G_PARAM_CONSTRUCT_ONLY)); + +	signals[CHANGE_PAGE] = +		g_signal_new ("change_page", +			      G_OBJECT_CLASS_TYPE (gobject_class), +			      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +			      G_STRUCT_OFFSET (EvViewPresentationClass, change_page), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__ENUM, +			      G_TYPE_NONE, 1, +			      GTK_TYPE_SCROLL_TYPE); +	signals[FINISHED] = +		g_signal_new ("finished", +			      G_OBJECT_CLASS_TYPE (gobject_class), +			      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +			      G_STRUCT_OFFSET (EvViewPresentationClass, finished), +			      NULL, NULL, +			      g_cclosure_marshal_VOID__VOID, +			      G_TYPE_NONE, 0, +			      G_TYPE_NONE); + +	binding_set = gtk_binding_set_by_class (klass); +	add_change_page_binding_keypad (binding_set, GDK_Left,  0, GTK_SCROLL_PAGE_BACKWARD); +	add_change_page_binding_keypad (binding_set, GDK_Right, 0, GTK_SCROLL_PAGE_FORWARD); +	add_change_page_binding_keypad (binding_set, GDK_Up,    0, GTK_SCROLL_PAGE_BACKWARD); +	add_change_page_binding_keypad (binding_set, GDK_Down,  0, GTK_SCROLL_PAGE_FORWARD); +	gtk_binding_entry_add_signal (binding_set, GDK_space, 0, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_FORWARD); +	gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_BACKWARD); +	gtk_binding_entry_add_signal (binding_set, GDK_Page_Down, 0, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_FORWARD); +	gtk_binding_entry_add_signal (binding_set, GDK_Page_Up, 0, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_BACKWARD); +	gtk_binding_entry_add_signal (binding_set, GDK_J, 0, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_FORWARD); +	gtk_binding_entry_add_signal (binding_set, GDK_H, 0, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_BACKWARD); +	gtk_binding_entry_add_signal (binding_set, GDK_L, 0, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_FORWARD); +	gtk_binding_entry_add_signal (binding_set, GDK_K, 0, +				      "change_page", 1, +				      GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_BACKWARD); +} + +static void +ev_view_presentation_init (EvViewPresentation *pview) +{ +	gtk_widget_set_can_focus (GTK_WIDGET (pview), TRUE); +} + +GtkWidget * +ev_view_presentation_new (EvDocument *document, +			  guint       current_page, +			  guint       rotation, +			  gboolean    inverted_colors) +{ +	g_return_val_if_fail (EV_IS_DOCUMENT (document), NULL); +	g_return_val_if_fail (current_page < ev_document_get_n_pages (document), NULL); + +	return GTK_WIDGET (g_object_new (EV_TYPE_VIEW_PRESENTATION, +					 "document", document, +					 "current_page", current_page, +					 "rotation", rotation, +					 "inverted_colors", inverted_colors, +					 NULL)); +} + +guint +ev_view_presentation_get_current_page (EvViewPresentation *pview) +{ +	return pview->current_page; +} diff --git a/libview/ev-view-presentation.h b/libview/ev-view-presentation.h new file mode 100644 index 00000000..3aaf6f06 --- /dev/null +++ b/libview/ev-view-presentation.h @@ -0,0 +1,51 @@ +/* ev-view-presentation.h + *  this file is part of evince, a mate document viewer + * + * Copyright (C) 2010 Carlos Garcia Campos <[email protected]> + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef __EV_VIEW_PRESENTATION_H__ +#define __EV_VIEW_PRESENTATION_H__ + +#include <gtk/gtk.h> + +#include <evince-document.h> + +G_BEGIN_DECLS + +#define EV_TYPE_VIEW_PRESENTATION            (ev_view_presentation_get_type ()) +#define EV_VIEW_PRESENTATION(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_VIEW_PRESENTATION, EvViewPresentation)) +#define EV_IS_VIEW_PRESENTATION(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_VIEW_PRESENTATION)) + +typedef struct _EvViewPresentation       EvViewPresentation; +typedef struct _EvViewPresentationClass  EvViewPresentationClass; + +GType		ev_view_presentation_get_type	      (void) G_GNUC_CONST; + +GtkWidget      *ev_view_presentation_new	      (EvDocument         *document, +						       guint               current_page, +						       guint               rotation, +						       gboolean            inverted_colors); +guint           ev_view_presentation_get_current_page (EvViewPresentation *pview); + +G_END_DECLS + +#endif /* __EV_VIEW_PRESENTATION_H__ */ diff --git a/libview/ev-view-private.h b/libview/ev-view-private.h new file mode 100644 index 00000000..8ecd12db --- /dev/null +++ b/libview/ev-view-private.h @@ -0,0 +1,225 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2004 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (EVINCE_COMPILATION) +#error "This is a private header." +#endif + +#ifndef __EV_VIEW_PRIVATE_H__ +#define __EV_VIEW_PRIVATE_H__ + +#include "ev-view.h" +#include "ev-document-model.h" +#include "ev-pixbuf-cache.h" +#include "ev-page-cache.h" +#include "ev-jobs.h" +#include "ev-image.h" +#include "ev-form-field.h" +#include "ev-selection.h" +#include "ev-view-cursor.h" + +#define DRAG_HISTORY 10 + +/* Information for middle clicking and moving around the doc */ +typedef struct { +        gboolean in_drag; +	GdkPoint start; +	gdouble hadj; +	gdouble vadj; +	guint drag_timeout_id; +	guint release_timeout_id; +	GdkPoint buffer[DRAG_HISTORY]; +	GdkPoint momentum; +} DragInfo; + +/* Autoscrolling */ +typedef struct { +	gboolean autoscrolling; +	guint last_y; +	guint start_y; +	guint timeout_id;	 +} AutoScrollInfo; + +/* Information for handling selection */ +typedef struct { +	gboolean in_drag; +	GdkPoint start; +	gboolean in_selection; +	GList *selections; +	EvSelectionStyle style; +} SelectionInfo; + +/* Information for handling images DND */ +typedef struct { +	gboolean in_drag; +	GdkPoint start; +	EvImage *image; +} ImageDNDInfo; + +/* Annotation popup windows */ +typedef struct { +	GtkWidget *window; +	guint      page; + +	/* Current position */ +	gint       x; +	gint       y; + +	/* EvView root position */ +	gint       parent_x; +	gint       parent_y; + +	/* Document coords */ +	gdouble    orig_x; +	gdouble    orig_y; + +	gboolean   visible; +	gboolean   moved; +} EvViewWindowChild; + +typedef enum { +	SCROLL_TO_KEEP_POSITION, +	SCROLL_TO_PAGE_POSITION, +	SCROLL_TO_CENTER, +	SCROLL_TO_FIND_LOCATION, +} PendingScroll; + +typedef struct _EvHeightToPageCache { +	gint rotation; +	gdouble *height_to_page; +	gdouble *dual_height_to_page; +} EvHeightToPageCache; + +struct _EvView { +	GtkLayout layout; + +	EvDocument *document; + +	/* Find */ +	GList **find_pages; +	gint find_result; +	gboolean jump_to_find_result; +	gboolean highlight_find_results; + +	EvDocumentModel *model; +	EvPixbufCache *pixbuf_cache; +	gsize pixbuf_cache_size; +	EvPageCache *page_cache; +	EvHeightToPageCache *height_to_page_cache; +	EvViewCursor cursor; +	EvJobRender *current_job; + +	GtkRequisition requisition; +	gboolean       internal_size_request; + +	/* Scrolling */ +	GtkAdjustment *hadjustment; +	GtkAdjustment *vadjustment; + +	gint scroll_x; +	gint scroll_y;	 + +	PendingScroll pending_scroll; +	gboolean      pending_resize; +	EvPoint       pending_point; + +	/* Current geometry */ +     +	gint start_page; +	gint end_page; +	gint current_page; + +	gint rotation; +	gdouble scale; +	gint spacing; + +	gboolean loading; +	gboolean continuous; +	gboolean dual_page; +	gboolean fullscreen; +	EvSizingMode sizing_mode; +	GtkWidget *loading_window; +	guint loading_timeout; + +	/* Common for button press handling */ +	int pressed_button; + +	/* Information for middle clicking and dragging around. */ +	DragInfo drag_info; +	 +	/* Autoscrolling */ +	AutoScrollInfo scroll_info; + +	/* Selection */ +	GdkPoint motion; +	guint selection_update_id; +	guint selection_scroll_id; + +	EvViewSelectionMode selection_mode; +	SelectionInfo selection_info; + +	/* Copy link address selection */ +	EvLinkAction *link_selected; + +	/* Image DND */ +	ImageDNDInfo image_dnd_info; + +	/* Annotations */ +	GList             *window_children; +	EvViewWindowChild *window_child_focus; +	EvMapping         *focus_annotation; +	gboolean           adding_annot; +	EvAnnotationType   adding_annot_type; + +	/* Synctex */ +	EvMapping *synctex_result; + +	/* Accessibility */ +	gboolean a11y_enabled; +}; + +struct _EvViewClass { +	GtkLayoutClass parent_class; + +	void    (*binding_activated)	  (EvView         *view, +					   GtkScrollType   scroll, +					   gboolean        horizontal); +	void    (*handle_link)		  (EvView         *view, +					   EvLink         *link); +	void    (*external_link)	  (EvView         *view, +					   EvLinkAction   *action); +	void    (*popup_menu)		  (EvView         *view, +					   GList          *items); +	void    (*selection_changed)      (EvView         *view); +	void    (*sync_source)            (EvView         *view, +					   EvSourceLink   *link); +	void    (*annot_added)            (EvView         *view, +					   EvAnnotation   *annot); +}; + +void _get_page_size_for_scale_and_rotation (EvDocument *document, +					    gint        page, +					    gdouble     scale, +					    gint        rotation, +					    gint       *page_width, +					    gint       *page_height); + +#endif  /* __EV_VIEW_PRIVATE_H__ */ + diff --git a/libview/ev-view-type-builtins.c.template b/libview/ev-view-type-builtins.c.template new file mode 100644 index 00000000..01ca13af --- /dev/null +++ b/libview/ev-view-type-builtins.c.template @@ -0,0 +1,44 @@ +/*** BEGIN file-header ***/ +#include <config.h> + +#include "ev-view-type-builtins.h" + +/*** END file-header ***/ + +/*** BEGIN file-production ***/ +/* enumerations from "@filename@" */ +#include "@filename@" +/*** END file-production ***/ + + +/*** BEGIN value-header ***/ +GType +@enum_name@_get_type (void) +{ +  static volatile gsize g_define_type_id__volatile = 0; +  +  if (g_once_init_enter (&g_define_type_id__volatile)) { +    static const G@Type@Value values[] = { +/*** END value-header ***/ + +/*** BEGIN value-production ***/ +      { @VALUENAME@, "@VALUENAME@", "@valuenick@" }, +/*** END value-production ***/ + +/*** BEGIN value-tail ***/ +      { 0, NULL, NULL } +    }; +    GType g_define_type_id = \ +       g_@type@_register_static (g_intern_static_string ("@EnumName@"), values); +       +    g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); +  } +     +  return g_define_type_id__volatile; +} + +/*** END value-tail ***/ + +/*** BEGIN file-tail ***/ + +/*** END file-tail ***/ diff --git a/libview/ev-view-type-builtins.h.template b/libview/ev-view-type-builtins.h.template new file mode 100644 index 00000000..c4ba4974 --- /dev/null +++ b/libview/ev-view-type-builtins.h.template @@ -0,0 +1,29 @@ +/*** BEGIN file-header ***/ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef EV_VIEW_TYPE_BUILTINS_H +#define EV_VIEW_TYPE_BUILTINS_H + +#include <glib-object.h> + +G_BEGIN_DECLS +/*** END file-header ***/ + +/*** BEGIN file-production ***/ + +/* enumerations from "@filename@" */ +/*** END file-production ***/ + +/*** BEGIN value-header ***/ +GType @enum_name@_get_type (void) G_GNUC_CONST; +#define EV_TYPE_@ENUMSHORT@ (@enum_name@_get_type ()) +/*** END value-header ***/ + +/*** BEGIN file-tail ***/ +G_END_DECLS + +#endif /* !EV_VIEW_TYPE_BUILTINS_H */ +/*** END file-tail ***/ diff --git a/libview/ev-view.c b/libview/ev-view.c new file mode 100644 index 00000000..b47d6047 --- /dev/null +++ b/libview/ev-view.c @@ -0,0 +1,6274 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2004 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "config.h" + +#include <stdlib.h> +#include <math.h> +#include <string.h> + +#include <glib/gi18n-lib.h> +#include <gtk/gtk.h> +#include <gdk/gdkkeysyms.h> + +#include "ev-mapping-list.h" +#include "ev-document-forms.h" +#include "ev-document-images.h" +#include "ev-document-links.h" +#include "ev-document-misc.h" +#include "ev-pixbuf-cache.h" +#include "ev-page-cache.h" +#include "ev-view-marshal.h" +#include "ev-document-annotations.h" +#include "ev-annotation-window.h" +#include "ev-loading-window.h" +#include "ev-view.h" +#include "ev-view-accessible.h" +#include "ev-view-private.h" +#include "ev-view-type-builtins.h" + +#define EV_VIEW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass)) +#define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW)) +#define EV_VIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass)) + +enum { +	SIGNAL_BINDING_ACTIVATED, +	SIGNAL_HANDLE_LINK, +	SIGNAL_EXTERNAL_LINK, +	SIGNAL_POPUP_MENU, +	SIGNAL_SELECTION_CHANGED, +	SIGNAL_SYNC_SOURCE, +	SIGNAL_ANNOT_ADDED, +	N_SIGNALS +}; + +enum { +	TARGET_DND_URI, +	TARGET_DND_TEXT, +	TARGET_DND_IMAGE +}; + +static guint signals[N_SIGNALS]; + +typedef enum { +	EV_VIEW_FIND_NEXT, +	EV_VIEW_FIND_PREV +} EvViewFindDirection; + +#define ZOOM_IN_FACTOR  1.2 +#define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR) + +#define SCROLL_TIME 150 + +/*** Scrolling ***/ +static void       ev_view_set_scroll_adjustments             (GtkLayout          *layout, +							      GtkAdjustment      *hadjustment, +							      GtkAdjustment      *vadjustment); +static void       view_update_range_and_current_page         (EvView             *view); +static void       set_scroll_adjustment                      (EvView             *view, +							      GtkOrientation      orientation, +							      GtkAdjustment      *adjustment); +static void       add_scroll_binding_keypad                  (GtkBindingSet      *binding_set, +							      guint               keyval, +							      GdkModifierType modifiers, +							      GtkScrollType       scroll, +							      gboolean            horizontal); +static void       ensure_rectangle_is_visible                (EvView             *view, +							      GdkRectangle       *rect); + +/*** Geometry computations ***/ +static void       compute_border                             (EvView             *view, +							      int                 width, +							      int                 height, +							      GtkBorder          *border); +static void       get_page_y_offset                          (EvView             *view, +							      int                 page, +							      int                *y_offset); +static void       view_rect_to_doc_rect                      (EvView             *view, +							      GdkRectangle       *view_rect, +							      GdkRectangle       *page_area, +							      EvRectangle        *doc_rect); +static void       doc_rect_to_view_rect                      (EvView             *view, +							      int                 page, +							      EvRectangle        *doc_rect, +							      GdkRectangle       *view_rect); +static gboolean   get_dual_even_left                         (EvView             *view); +static void       find_page_at_location                      (EvView             *view, +							      gdouble             x, +							      gdouble             y, +							      gint               *page, +							      gint               *x_offset, +							      gint               *y_offset); +static void       doc_point_to_view_point 		     (EvView             *view, +				                              int                 page, +							      EvPoint            *doc_point, +					     	              GdkPoint           *view_point); +/*** Hyperrefs ***/ +static EvLink *   ev_view_get_link_at_location 		     (EvView             *view, +				  	         	      gdouble             x, +		            				      gdouble             y); +static char*      tip_from_link                              (EvView             *view, +							      EvLink             *link); +/*** Forms ***/ +static EvFormField *ev_view_get_form_field_at_location       (EvView             *view, +							       gdouble            x, +							       gdouble            y); + +/*** Annotations ***/ +static EvAnnotation *ev_view_get_annotation_at_location      (EvView             *view, +							      gdouble             x, +							      gdouble             y); +static void          show_annotation_windows                 (EvView             *view, +							      gint                page); +static void          hide_annotation_windows                 (EvView             *view, +							      gint                page); +/*** GtkWidget implementation ***/ +static void       ev_view_size_request_continuous_dual_page  (EvView             *view, +							      GtkRequisition     *requisition); +static void       ev_view_size_request_continuous            (EvView             *view, +							      GtkRequisition     *requisition); +static void       ev_view_size_request_dual_page             (EvView             *view, +							      GtkRequisition     *requisition); +static void       ev_view_size_request_single_page           (EvView             *view, +							      GtkRequisition     *requisition); +static void       ev_view_size_request                       (GtkWidget          *widget, +							      GtkRequisition     *requisition); +static void       ev_view_size_allocate                      (GtkWidget          *widget, +							      GtkAllocation      *allocation); +static void       ev_view_realize                            (GtkWidget          *widget); +static gboolean   ev_view_scroll_event                       (GtkWidget          *widget, +							      GdkEventScroll     *event); +static gboolean   ev_view_expose_event                       (GtkWidget          *widget, +							      GdkEventExpose     *event); +static gboolean   ev_view_popup_menu                         (GtkWidget 	 *widget); +static gboolean   ev_view_button_press_event                 (GtkWidget          *widget, +							      GdkEventButton     *event); +static gboolean   ev_view_motion_notify_event                (GtkWidget          *widget, +							      GdkEventMotion     *event); +static gboolean   ev_view_button_release_event               (GtkWidget          *widget, +							      GdkEventButton     *event); +static gboolean   ev_view_enter_notify_event                 (GtkWidget          *widget, +							      GdkEventCrossing   *event); +static gboolean   ev_view_leave_notify_event                 (GtkWidget          *widget, +							      GdkEventCrossing   *event); +static void       ev_view_style_set                          (GtkWidget          *widget, +							      GtkStyle           *old_style); +static void       ev_view_remove_all                         (EvView             *view); + +static AtkObject *ev_view_get_accessible                     (GtkWidget *widget); + +/*** Drawing ***/ +static void       highlight_find_results                     (EvView             *view, +							      int                 page); +static void       highlight_forward_search_results           (EvView             *view, +							      int                 page); +static void       focus_annotation                           (EvView             *view, +							      int                 page, +							      GdkRectangle       *clip); +static void       draw_one_page                              (EvView             *view, +							      gint                page, +							      cairo_t            *cr, +							      GdkRectangle       *page_area, +							      GtkBorder          *border, +							      GdkRectangle       *expose_area, +							      gboolean		 *page_ready); +static void       show_loading_window                        (EvView             *view); +static void       hide_loading_window                        (EvView             *view); +static void       ev_view_reload_page                        (EvView             *view, +							      gint                page, +							      cairo_region_t     *region); +static void       ev_view_loading_window_move                (EvView             *view); + +/*** Callbacks ***/ +static void       ev_view_change_page                        (EvView             *view, +							      gint                new_page); +static void       job_finished_cb                            (EvPixbufCache      *pixbuf_cache, +							      cairo_region_t     *region, +							      EvView             *view); +static void       ev_view_page_changed_cb                    (EvDocumentModel    *model, +							      gint                old_page, +							      gint                new_page, +							      EvView             *view); +static void       on_adjustment_value_changed                (GtkAdjustment      *adjustment, +							      EvView             *view); + +/*** GObject ***/ +static void       ev_view_finalize                           (GObject            *object); +static void       ev_view_destroy                            (GtkObject          *object); +static void       ev_view_class_init                         (EvViewClass        *class); +static void       ev_view_init                               (EvView             *view); + +/*** Zoom and sizing ***/ +static double   zoom_for_size_fit_width	 		     (gdouble doc_width, +							      gdouble doc_height, +	    						      int     target_width, +							      int     target_height); +static double   zoom_for_size_fit_height		     (gdouble doc_width, +			  				      gdouble doc_height, +							      int     target_width, +							      int     target_height); +static double	zoom_for_size_best_fit 			     (gdouble doc_width, +							      gdouble doc_height, +							      int     target_width, +							      int     target_height); +static void     ev_view_zoom_for_size                        (EvView *view, +							      int     width, +							      int     height); +static void	ev_view_zoom_for_size_continuous_and_dual_page (EvView *view, +							        int     width, +						     	        int     height); +static void	ev_view_zoom_for_size_continuous	       (EvView *view, +					    		        int     width, +								int     height); +static void 	ev_view_zoom_for_size_dual_page 	       (EvView *view, +						    		int     width, +								int     height); +static void	ev_view_zoom_for_size_single_page 	       (EvView *view, +				    			        int     width, +					    			int     height); +/*** Cursors ***/ +static void       ev_view_set_cursor                         (EvView             *view, +							      EvViewCursor        new_cursor); +static void       ev_view_handle_cursor_over_xy              (EvView *view, +							      gint x, +							      gint y); + +/*** Find ***/ +static gint         ev_view_find_get_n_results               (EvView             *view, +							      gint                page); +static EvRectangle *ev_view_find_get_result                  (EvView             *view, +							      gint                page, +							      gint                result); +static void       jump_to_find_result                        (EvView             *view); +static void       jump_to_find_page                          (EvView             *view,  +							      EvViewFindDirection direction, +							      gint                shift); +/*** Selection ***/ +static void       compute_selections                         (EvView             *view, +							      EvSelectionStyle    style, +							      GdkPoint           *start, +							      GdkPoint           *stop); +static void       clear_selection                            (EvView             *view); +static void       clear_link_selected                        (EvView             *view); +static void       selection_free                             (EvViewSelection    *selection); +static char*      get_selected_text                          (EvView             *ev_view); +static void       ev_view_primary_get_cb                     (GtkClipboard       *clipboard, +							      GtkSelectionData   *selection_data, +							      guint               info, +							      gpointer            data); +static void       ev_view_primary_clear_cb                   (GtkClipboard       *clipboard, +							      gpointer            data); +static void       ev_view_update_primary_selection           (EvView             *ev_view); + +G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_LAYOUT) + +/* HeightToPage cache */ +#define EV_HEIGHT_TO_PAGE_CACHE_KEY "ev-height-to-page-cache" + +static void +build_height_to_page (EvHeightToPageCache *cache, +		      EvDocument          *document, +		      gint                 rotation) +{ +	gboolean swap, uniform, dual_even_left; +	int i; +	double uniform_height, page_height, next_page_height; +	double saved_height; +	gdouble u_width, u_height; +	gint n_pages; + +	swap = (rotation == 90 || rotation == 270); + +	uniform = ev_document_is_page_size_uniform (document); +	n_pages = ev_document_get_n_pages (document); +	dual_even_left = (n_pages > 2); + +	g_free (cache->height_to_page); +	g_free (cache->dual_height_to_page); + +	cache->rotation = rotation; +	cache->height_to_page = g_new0 (gdouble, n_pages + 1); +	cache->dual_height_to_page = g_new0 (gdouble, n_pages + 2); + +	if (uniform) +		ev_document_get_page_size (document, 0, &u_width, &u_height); + +	saved_height = 0; +	for (i = 0; i <= n_pages; i++) { +		if (uniform) { +			uniform_height = swap ? u_width : u_height; +			cache->height_to_page[i] = i * uniform_height; +		} else { +			if (i < n_pages) { +				gdouble w, h; + +				ev_document_get_page_size (document, i, &w, &h); +				page_height = swap ? w : h; +			} else { +				page_height = 0; +			} +			cache->height_to_page[i] = saved_height; +			saved_height += page_height; +		} +	} + +	if (dual_even_left && !uniform) { +		gdouble w, h; + +		ev_document_get_page_size (document, 0, &w, &h); +		saved_height = swap ? w : h; +	} else { +		saved_height = 0; +	} + +	for (i = dual_even_left; i < n_pages + 2; i += 2) { +    		if (uniform) { +			uniform_height = swap ? u_width : u_height; +			cache->dual_height_to_page[i] = ((i + dual_even_left) / 2) * uniform_height; +			if (i + 1 < n_pages + 2) +				cache->dual_height_to_page[i + 1] = ((i + dual_even_left) / 2) * uniform_height; +		} else { +			if (i + 1 < n_pages) { +				gdouble w, h; + +				ev_document_get_page_size (document, i + 1, &w, &h); +				next_page_height = swap ? w : h; +			} else { +				next_page_height = 0; +			} + +			if (i < n_pages) { +				gdouble w, h; + +				ev_document_get_page_size (document, i, &w, &h); +				page_height = swap ? w : h; +			} else { +				page_height = 0; +			} + +			if (i + 1 < n_pages + 2) { +				cache->dual_height_to_page[i] = saved_height; +				cache->dual_height_to_page[i + 1] = saved_height; +				saved_height += MAX(page_height, next_page_height); +			} else { +				cache->dual_height_to_page[i] = saved_height; +			} +		} +	} +} + +static void +ev_height_to_page_cache_get_height (EvHeightToPageCache *cache, +				    EvDocument          *document, +				    gint                 page, +				    gint                 rotation, +				    gdouble             *height, +				    gdouble             *dual_height) +{ +	if (cache->rotation != rotation) +		build_height_to_page (cache, document, rotation); + +	*height = cache->height_to_page[page]; +	*dual_height = cache->dual_height_to_page[page]; +} + +static void +ev_height_to_page_cache_free (EvHeightToPageCache *cache) +{ +	if (cache->height_to_page) { +		g_free (cache->height_to_page); +		cache->height_to_page = NULL; +	} + +	if (cache->dual_height_to_page) { +		g_free (cache->dual_height_to_page); +		cache->dual_height_to_page = NULL; +	} +	g_free (cache); +} + +static EvHeightToPageCache * +ev_view_get_height_to_page_cache (EvView *view) +{ +	EvHeightToPageCache *cache; + +	if (!view->document) +		return NULL; + +	cache = g_object_get_data (G_OBJECT (view->document), EV_HEIGHT_TO_PAGE_CACHE_KEY); +	if (!cache) { +		cache = g_new0 (EvHeightToPageCache, 1); +		build_height_to_page (cache, view->document, view->rotation); +		g_object_set_data_full (G_OBJECT (view->document), +					EV_HEIGHT_TO_PAGE_CACHE_KEY, +					cache, +					(GDestroyNotify)ev_height_to_page_cache_free); +	} + +	return cache; +} + +static void +ev_view_get_height_to_page (EvView *view, +			    gint    page, +			    gint   *height, +			    gint   *dual_height) +{ +	gdouble h, dh; + +	if (!view->height_to_page_cache) +		return; + +	ev_height_to_page_cache_get_height (view->height_to_page_cache, +					    view->document, +					    page, +					    view->rotation, +					    &h, &dh); +	if (height) +		*height = (gint)(h * view->scale + 0.5); + +	if (dual_height) +		*dual_height = (gint)(dh * view->scale + 0.5); +} + +static gint +ev_view_get_scrollbar_size (EvView        *view, +			    GtkOrientation orientation) +{ +	GtkWidget *widget = GTK_WIDGET (view); +	GtkWidget *sb; +	GtkWidget *swindow = gtk_widget_get_parent (GTK_WIDGET (view)); +	GtkAllocation allocation; +	GtkRequisition req; +	gint spacing; + +	if (!GTK_IS_SCROLLED_WINDOW (swindow)) +		return 0; + +	gtk_widget_get_allocation (widget, &allocation); + +	if (orientation == GTK_ORIENTATION_VERTICAL) { +		if (allocation.height >= view->requisition.height) +			sb = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (swindow)); +		else +			return 0; +	} else { +		if (allocation.width >= view->requisition.width) +			sb = gtk_scrolled_window_get_hscrollbar (GTK_SCROLLED_WINDOW (swindow)); +		else +			return 0; +	} + +	gtk_widget_style_get (swindow, "scrollbar_spacing", &spacing, NULL); +	gtk_widget_size_request (sb, &req); + +	return (orientation == GTK_ORIENTATION_VERTICAL ? req.width : req.height) + spacing; +} + +static void +scroll_to_point (EvView        *view, +		 gdouble        x, +		 gdouble        y, +		 GtkOrientation orientation) +{ +	gdouble page_size; +	gdouble upper, lower; + +	if (orientation == GTK_ORIENTATION_VERTICAL) { +		page_size = gtk_adjustment_get_page_size (view->vadjustment); +		upper = gtk_adjustment_get_upper (view->vadjustment); +		lower = gtk_adjustment_get_lower (view->vadjustment); + +		if (view->continuous) { +    			gtk_adjustment_clamp_page (view->vadjustment, +						   y - view->spacing / 2, +						   y + page_size); +		} else { +			gtk_adjustment_set_value (view->vadjustment, +						  CLAMP (y, lower, upper - page_size)); +		} +	} else { +		page_size = gtk_adjustment_get_page_size (view->hadjustment); +		upper = gtk_adjustment_get_upper (view->hadjustment); +		lower = gtk_adjustment_get_lower (view->hadjustment); + +		if (view->dual_page) { +			gtk_adjustment_clamp_page (view->hadjustment, x, +						   x + page_size); +		} else { +			gtk_adjustment_set_value (view->hadjustment, +						  CLAMP (x, lower, upper - page_size)); +		} +	} +} + +static void +ev_view_scroll_to_page_position (EvView *view, GtkOrientation orientation) +{ +	gdouble x, y; + +	if (!view->document) +		return; + +	if ((orientation == GTK_ORIENTATION_VERTICAL && view->pending_point.y == 0) || +	    (orientation == GTK_ORIENTATION_HORIZONTAL && view->pending_point.x == 0)) { +		GdkRectangle page_area; +		GtkBorder    border; + +		ev_view_get_page_extents (view, view->current_page, &page_area, &border); +		x = page_area.x; +		y = page_area.y; +	} else { +		GdkPoint view_point; + +		doc_point_to_view_point (view, view->current_page, +					 &view->pending_point, &view_point); +		x = view_point.x; +		y = view_point.y; +	} + +	scroll_to_point (view, x, y, orientation); +} + +static void +view_set_adjustment_values (EvView         *view, +			    GtkOrientation  orientation) +{ +	GtkWidget *widget = GTK_WIDGET (view); +	GtkAdjustment *adjustment; +	GtkAllocation allocation; +	int req_size; +	int alloc_size; +	gdouble page_size; +	gdouble value; +	gdouble upper; +	double factor; +	gint new_value; + +	gtk_widget_get_allocation (widget, &allocation); + +	if (orientation == GTK_ORIENTATION_HORIZONTAL)  { +		req_size = view->requisition.width; +		alloc_size = allocation.width; +		adjustment = view->hadjustment; +	} else { +		req_size = view->requisition.height; +		alloc_size = allocation.height; +		adjustment = view->vadjustment; +	} + +	if (!adjustment) +		return; + +	factor = 1.0; +	value = gtk_adjustment_get_value (adjustment); +	upper = gtk_adjustment_get_upper (adjustment); +	page_size = gtk_adjustment_get_page_size (adjustment); + +	switch (view->pending_scroll) { +    	        case SCROLL_TO_KEEP_POSITION: +    	        case SCROLL_TO_FIND_LOCATION: +			factor = value / upper; +			break; +    	        case SCROLL_TO_PAGE_POSITION: +			break; +    	        case SCROLL_TO_CENTER: +			factor = (value + page_size * 0.5) / upper; +			break; +	} + +	upper = MAX (alloc_size, req_size); +	page_size = alloc_size; + +	gtk_adjustment_set_page_size (adjustment, page_size); +	gtk_adjustment_set_step_increment (adjustment, alloc_size * 0.1); +	gtk_adjustment_set_page_increment (adjustment, alloc_size * 0.9); +	gtk_adjustment_set_lower (adjustment, 0); +	gtk_adjustment_set_upper (adjustment, upper); + +	/* +	 * We add 0.5 to the values before to average out our rounding errors. +	 */ +	switch (view->pending_scroll) { +    	        case SCROLL_TO_KEEP_POSITION: +    	        case SCROLL_TO_FIND_LOCATION: +			new_value = CLAMP (upper * factor + 0.5, 0, upper - page_size); +			gtk_adjustment_set_value (adjustment, (int)new_value); +			break; +    	        case SCROLL_TO_PAGE_POSITION: +			ev_view_scroll_to_page_position (view, orientation); +			break; +    	        case SCROLL_TO_CENTER: +			new_value = CLAMP (upper * factor - page_size * 0.5 + 0.5, +					   0, upper - page_size); +			gtk_adjustment_set_value (adjustment, (int)new_value); +			break; +	} + +	gtk_adjustment_changed (adjustment); +} + +static void +view_update_range_and_current_page (EvView *view) +{ +	gint start = view->start_page; +	gint end = view->end_page; + +	if (ev_document_get_n_pages (view->document) <= 0 || +	    !ev_document_check_dimensions (view->document)) +		return; + +	if (view->continuous) { +		GdkRectangle current_area, unused, page_area; +		GtkBorder border; +		gboolean found = FALSE; +		gint area_max = -1, area; +		gint best_current_page = -1; +		int i, j = 0; + +		if (!(view->vadjustment && view->hadjustment)) +			return; + +		current_area.x = gtk_adjustment_get_value (view->hadjustment); +		current_area.width = gtk_adjustment_get_page_size (view->hadjustment); +		current_area.y = gtk_adjustment_get_value (view->vadjustment); +		current_area.height = gtk_adjustment_get_page_size (view->vadjustment); + +		for (i = 0; i < ev_document_get_n_pages (view->document); i++) { + +			ev_view_get_page_extents (view, i, &page_area, &border); + +			if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) { +				area = unused.width * unused.height; + +				if (!found) { +					area_max = area; +					view->start_page = i; +					found = TRUE; +					best_current_page = i; +				} +				if (area > area_max) { +					best_current_page = (area == area_max) ? MIN (i, best_current_page) : i; +					area_max = area; +				} + +				view->end_page = i; +				j = 0; +			} else if (found && view->current_page <= view->end_page) { +				if (view->dual_page && j < 1) { +					/* In dual mode  we stop searching +					 * after two consecutive non-visible pages. +					 */ +					j++; +					continue; +				} +				break; +			} +		} + +		if (view->pending_scroll == SCROLL_TO_KEEP_POSITION) { +			best_current_page = MAX (best_current_page, view->start_page); + +			if (view->current_page != best_current_page) { +				view->current_page = best_current_page; +				hide_loading_window (view); +				ev_document_model_set_page (view->model, best_current_page); +			} +		} +	} else if (view->dual_page) { +		if (view->current_page % 2 == get_dual_even_left (view)) { +			view->start_page = view->current_page; +			if (view->current_page + 1 < ev_document_get_n_pages (view->document)) +				view->end_page = view->start_page + 1; +			else +				view->end_page = view->start_page; +		} else { +			if (view->current_page < 1) +				view->start_page = view->current_page; +			else +				view->start_page = view->current_page - 1; +			view->end_page = view->current_page; +		} +	} else { +		view->start_page = view->current_page; +		view->end_page = view->current_page; +	} + +	if (view->start_page == -1 || view->end_page == -1) +		return; + +	if (start != view->start_page || end != view->end_page) { +		gint i; + +		for (i = start; i < view->start_page && start != -1; i++) { +			hide_annotation_windows (view, i); +		} + +		for (i = end; i > view->end_page && end != -1; i--) { +			hide_annotation_windows (view, i); +		} +	} + +	ev_page_cache_set_page_range (view->page_cache, +				      view->start_page, +				      view->end_page); +	ev_pixbuf_cache_set_page_range (view->pixbuf_cache, +					view->start_page, +					view->end_page, +					view->selection_info.selections); + +	if (ev_pixbuf_cache_get_surface (view->pixbuf_cache, view->current_page)) +	    gtk_widget_queue_draw (GTK_WIDGET (view)); +} + +static void +set_scroll_adjustment (EvView *view, +		       GtkOrientation  orientation, +		       GtkAdjustment  *adjustment) +{ +	GtkAdjustment **to_set; + +	if (orientation == GTK_ORIENTATION_HORIZONTAL) +		to_set = &view->hadjustment; +	else +		to_set = &view->vadjustment; + +	if (*to_set != adjustment) { +		if (*to_set) { +			g_signal_handlers_disconnect_by_func (*to_set, +							      (gpointer) on_adjustment_value_changed, +							      view); +			g_object_unref (*to_set); +		} + +		*to_set = adjustment; +		view_set_adjustment_values (view, orientation); + +		if (*to_set) { +			g_object_ref (*to_set); +			g_signal_connect (*to_set, "value_changed", +					  G_CALLBACK (on_adjustment_value_changed), view); +		} +	} +} + +static void +ev_view_set_scroll_adjustments (GtkLayout      *layout, +				GtkAdjustment  *hadjustment, +				GtkAdjustment  *vadjustment) +{ +	EvView *view = EV_VIEW (layout); +	 +	set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment); +	set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment); +	 +	on_adjustment_value_changed (NULL, view); +} + +static void +add_scroll_binding_keypad (GtkBindingSet  *binding_set, +    			   guint           keyval, +    			   GdkModifierType modifiers, +    			   GtkScrollType   scroll, +			   gboolean        horizontal) +{ +  guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left; + +  gtk_binding_entry_add_signal (binding_set, keyval, modifiers, +                                "binding_activated", 2, +                                GTK_TYPE_SCROLL_TYPE, scroll, +				G_TYPE_BOOLEAN, horizontal); +  gtk_binding_entry_add_signal (binding_set, keypad_keyval, modifiers, +                                "binding_activated", 2, +                                GTK_TYPE_SCROLL_TYPE, scroll, +				G_TYPE_BOOLEAN, horizontal); +} + +static gdouble +compute_scroll_increment (EvView        *view, +			  GtkScrollType  scroll) +{ +	GtkWidget *widget = GTK_WIDGET (view); +	GtkAdjustment *adjustment = view->vadjustment; +	cairo_region_t *text_region, *region; +	GtkAllocation allocation; +	gint page; +	GdkRectangle rect; +	EvRectangle doc_rect; +	GdkRectangle page_area; +	GtkBorder border; +	gdouble fraction = 1.0; + +	if (scroll != GTK_SCROLL_PAGE_BACKWARD && scroll != GTK_SCROLL_PAGE_FORWARD) +		return gtk_adjustment_get_page_size (adjustment); + +	page = scroll == GTK_SCROLL_PAGE_BACKWARD ? view->start_page : view->end_page; + +	text_region = ev_page_cache_get_text_mapping (view->page_cache, page); +	if (!text_region || cairo_region_is_empty (text_region)) +		return gtk_adjustment_get_page_size (adjustment); + +	gtk_widget_get_allocation (widget, &allocation); +	ev_view_get_page_extents (view, page, &page_area, &border); +	rect.x = page_area.x + view->scroll_x; +	rect.y = view->scroll_y + (scroll == GTK_SCROLL_PAGE_BACKWARD ? 5 : allocation.height - 5); +	rect.width = page_area.width; +	rect.height = 1; +	view_rect_to_doc_rect (view, &rect, &page_area, &doc_rect); + +	/* Convert the doc rectangle into a GdkRectangle */ +	rect.x = doc_rect.x1; +	rect.y = doc_rect.y1; +	rect.width = doc_rect.x2 - doc_rect.x1; +	rect.height = MAX (1, doc_rect.y2 - doc_rect.y1); +	region = cairo_region_create_rectangle (&rect); + +	cairo_region_intersect (region, text_region); +	if (cairo_region_num_rectangles (region)) { +		EvRenderContext *rc; +		EvPage  *ev_page; +		cairo_region_t *sel_region; + +		cairo_region_get_rectangle (region, 0, &rect); +		ev_page = ev_document_get_page (view->document, page); +		rc = ev_render_context_new (ev_page, view->rotation, view->scale); +		g_object_unref (ev_page); +		/* Get the selection region to know the height of the line */ +		doc_rect.x1 = doc_rect.x2 = rect.x + 0.5; +		doc_rect.y1 = doc_rect.y2 = rect.y + 0.5; + +		ev_document_doc_mutex_lock (); +		sel_region = ev_selection_get_selection_region (EV_SELECTION (view->document), +								rc, EV_SELECTION_STYLE_LINE, +								&doc_rect); +		ev_document_doc_mutex_unlock (); + +		g_object_unref (rc); + +		if (cairo_region_num_rectangles (sel_region) > 0) { +			cairo_region_get_rectangle (sel_region, 0, &rect); +			fraction = 1 - (rect.height / gtk_adjustment_get_page_size (adjustment)); +		} +		cairo_region_destroy (sel_region); +	} +	cairo_region_destroy (region); + +	return gtk_adjustment_get_page_size (adjustment) * fraction; + +} + +void +ev_view_scroll (EvView        *view, +	        GtkScrollType  scroll, +		gboolean       horizontal) +{ +	GtkAdjustment *adjustment; +	double value, increment; +	gdouble upper, lower; +	gdouble page_size; +	gdouble step_increment; +	gboolean first_page = FALSE; +	gboolean last_page = FALSE; + +	view->jump_to_find_result = FALSE; + +	if (view->sizing_mode == EV_SIZING_BEST_FIT) { +		switch (scroll) { +			case GTK_SCROLL_PAGE_BACKWARD: +			case GTK_SCROLL_STEP_BACKWARD: +				ev_view_previous_page (view); +				break; +			case GTK_SCROLL_PAGE_FORWARD: +			case GTK_SCROLL_STEP_FORWARD: +				ev_view_next_page (view); +				break; +			default: +				break; +		} +		return; +	} + +	/* Assign values for increment and vertical adjustment */ +	adjustment = horizontal ? view->hadjustment : view->vadjustment; +	value = gtk_adjustment_get_value (adjustment); +	upper = gtk_adjustment_get_upper (adjustment); +	lower = gtk_adjustment_get_lower (adjustment); +	page_size = gtk_adjustment_get_page_size (adjustment); +	step_increment = gtk_adjustment_get_step_increment (adjustment); + +	/* Assign boolean for first and last page */ +	if (view->current_page == 0) +		first_page = TRUE; +	if (view->current_page == ev_document_get_n_pages (view->document) - 1) +		last_page = TRUE; + +	switch (scroll) { +		case GTK_SCROLL_PAGE_BACKWARD: +			/* Do not jump backwards if at the first page */ +			if (value == lower && first_page) { +				/* Do nothing */ +				/* At the top of a page, assign the upper bound limit of previous page */ +			} else if (value == lower) { +				value = upper - page_size; +				ev_view_previous_page (view); +				/* Jump to the top */ +			} else { +				increment = compute_scroll_increment (view, GTK_SCROLL_PAGE_BACKWARD); +				value = MAX (value - increment, lower); +			} +			break; +		case GTK_SCROLL_PAGE_FORWARD: +			/* Do not jump forward if at the last page */ +			if (value == (upper - page_size) && last_page) { +				/* Do nothing */ +			/* At the bottom of a page, assign the lower bound limit of next page */ +			} else if (value == (upper - page_size)) { +				value = 0; +				ev_view_next_page (view); +			/* Jump to the bottom */ +			} else { +				increment = compute_scroll_increment (view, GTK_SCROLL_PAGE_FORWARD); +				value = MIN (value + increment, upper - page_size); +			} +			break; +	        case GTK_SCROLL_STEP_BACKWARD: +			value -= step_increment; +			break; +	        case GTK_SCROLL_STEP_FORWARD: +			value += step_increment; +			break; +        	case GTK_SCROLL_STEP_DOWN: +			value -= step_increment / 10; +			break; +        	case GTK_SCROLL_STEP_UP: +			value += step_increment / 10; +			break; +        	default: +			break; +	} + +	value = CLAMP (value, lower, upper - page_size); + +	gtk_adjustment_set_value (adjustment, value); +} + +#define MARGIN 5 + +static void +ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect) +{ +	GtkWidget *widget = GTK_WIDGET (view); +	GtkAdjustment *adjustment; +	GtkAllocation allocation; +	gdouble adj_value; +	int value; + +	view->pending_scroll = SCROLL_TO_FIND_LOCATION; + +	gtk_widget_get_allocation (widget, &allocation); + +	adjustment = view->vadjustment; +	adj_value = gtk_adjustment_get_value (adjustment); + +	if (rect->y < adj_value) { +		value = MAX (gtk_adjustment_get_lower (adjustment), rect->y - MARGIN); +		gtk_adjustment_set_value (view->vadjustment, value); +	} else if (rect->y + rect->height > adj_value + allocation.height) { +		value = MIN (gtk_adjustment_get_upper (adjustment), rect->y + rect->height - +			     allocation.height + MARGIN); +		gtk_adjustment_set_value (view->vadjustment, value); +	} + +	adjustment = view->hadjustment; +	adj_value = gtk_adjustment_get_value (adjustment); + +	if (rect->x < adj_value) { +		value = MAX (gtk_adjustment_get_lower (adjustment), rect->x - MARGIN); +		gtk_adjustment_set_value (view->hadjustment, value); +	} else if (rect->x + rect->height > adj_value + allocation.width) { +		value = MIN (gtk_adjustment_get_upper (adjustment), rect->x + rect->width - +			     allocation.width + MARGIN); +		gtk_adjustment_set_value (view->hadjustment, value); +	} + +	gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +/*** Geometry computations ***/ + +static void +compute_border (EvView *view, int width, int height, GtkBorder *border) +{ +	ev_document_misc_get_page_border_size (width, height, border); +} + +void +_get_page_size_for_scale_and_rotation (EvDocument *document, +				       gint        page, +				       gdouble     scale, +				       gint        rotation, +				       gint       *page_width, +				       gint       *page_height) +{ +	gdouble w, h; +	gint    width, height; + +	ev_document_get_page_size (document, page, &w, &h); + +	width = (gint)(w * scale + 0.5); +	height = (gint)(h * scale + 0.5); + +	if (page_width) +		*page_width = (rotation == 0 || rotation == 180) ? width : height; +	if (page_height) +		*page_height = (rotation == 0 || rotation == 180) ? height : width; +} + +static void +ev_view_get_page_size (EvView *view, +		       gint    page, +		       gint   *page_width, +		       gint   *page_height) +{ +	_get_page_size_for_scale_and_rotation (view->document, +					       page, +					       view->scale, +					       view->rotation, +					       page_width, +					       page_height); +} + +static void +ev_view_get_max_page_size (EvView *view, +			   gint   *max_width, +			   gint   *max_height) +{ +	double w, h; +	gint   width, height; + +	ev_document_get_max_page_size (view->document, &w, &h); + +	width = (gint)(w * view->scale + 0.5); +	height = (gint)(h * view->scale + 0.5); + +	if (max_width) +		*max_width = (view->rotation == 0 || view->rotation == 180) ? width : height; +	if (max_height) +		*max_height = (view->rotation == 0 || view->rotation == 180) ? height : width; +} + +static void +get_page_y_offset (EvView *view, int page, int *y_offset) +{ +	int max_width, offset; +	GtkBorder border; + +	g_return_if_fail (y_offset != NULL); + +	ev_view_get_max_page_size (view, &max_width, NULL); +	compute_border (view, max_width, max_width, &border); + +	if (view->dual_page) { +		ev_view_get_height_to_page (view, page, NULL, &offset); +		offset += ((page + get_dual_even_left (view)) / 2 + 1) * view->spacing + +			((page + get_dual_even_left (view)) / 2 ) * (border.top + border.bottom); +	} else { +		ev_view_get_height_to_page (view, page, &offset, NULL); +		offset += (page + 1) * view->spacing + page * (border.top + border.bottom); +	} + +	*y_offset = offset; +	return; +} + +gboolean +ev_view_get_page_extents (EvView       *view, +			  gint          page, +			  GdkRectangle *page_area, +			  GtkBorder    *border) +{ +	GtkWidget *widget; +	int width, height; +	GtkAllocation allocation; + +	widget = GTK_WIDGET (view); +	gtk_widget_get_allocation (widget, &allocation); + +	/* Get the size of the page */ +	ev_view_get_page_size (view, page, &width, &height); +	compute_border (view, width, height, border); +	page_area->width = width + border->left + border->right; +	page_area->height = height + border->top + border->bottom; + +	if (view->continuous) { +		gint max_width; +		gint x, y; + +		ev_view_get_max_page_size (view, &max_width, NULL); +		max_width = max_width + border->left + border->right; +		/* Get the location of the bounding box */ +		if (view->dual_page) { +			x = view->spacing + ((page % 2 == get_dual_even_left (view)) ? 0 : 1) * (max_width + view->spacing); +			x = x + MAX (0, allocation.width - (max_width * 2 + view->spacing * 3)) / 2; +			if (page % 2 == get_dual_even_left (view)) +				x = x + (max_width - width - border->left - border->right); +		} else { +			x = view->spacing; +			x = x + MAX (0, allocation.width - (width + view->spacing * 2)) / 2; +		} + +		get_page_y_offset (view, page, &y); + +		page_area->x = x; +		page_area->y = y; +	} else { +		gint x, y; +		if (view->dual_page) { +			gint width_2, height_2; +			gint max_width = width; +			gint max_height = height; +			GtkBorder overall_border; +			gint other_page; + +			other_page = (page % 2 == get_dual_even_left (view)) ? page + 1: page - 1; + +			/* First, we get the bounding box of the two pages */ +			if (other_page < ev_document_get_n_pages (view->document) +			    && (0 <= other_page)) { +				ev_view_get_page_size (view, other_page, +						       &width_2, &height_2); +				if (width_2 > width) +					max_width = width_2; +				if (height_2 > height) +					max_height = height_2; +			} +			compute_border (view, max_width, max_height, &overall_border); + +			/* Find the offsets */ +			x = view->spacing; +			y = view->spacing; + +			/* Adjust for being the left or right page */ +			if (page % 2 == get_dual_even_left (view)) +				x = x + max_width - width; +			else +				x = x + (max_width + overall_border.left + overall_border.right) + view->spacing; + +			y = y + (max_height - height)/2; + +			/* Adjust for extra allocation */ +			x = x + MAX (0, allocation.width - +				     ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2; +			y = y + MAX (0, allocation.height - (height + view->spacing * 2))/2; +		} else { +			x = view->spacing; +			y = view->spacing; + +			/* Adjust for extra allocation */ +			x = x + MAX (0, allocation.width - (width + border->left + border->right + view->spacing * 2))/2; +			y = y + MAX (0, allocation.height - (height + border->top + border->bottom +  view->spacing * 2))/2; +		} + +		page_area->x = x; +		page_area->y = y; +	} + +	return TRUE; +} + +static void +get_doc_page_size (EvView  *view, +		   gint     page, +		   gdouble *width, +		   gdouble *height) +{ +	double w, h; + +	ev_document_get_page_size (view->document, page, &w, &h); +	if (view->rotation == 0 || view->rotation == 180) { +		if (width) *width = w; +		if (height) *height = h; +	} else { +		if (width) *width = h; +		if (height) *height = w; +	} +} + +static void +view_point_to_doc_point (EvView *view, +			 GdkPoint *view_point, +			 GdkRectangle *page_area, +			 double  *doc_point_x, +			 double  *doc_point_y) +{ +	*doc_point_x = (double) (view_point->x - page_area->x) / view->scale; +	*doc_point_y = (double) (view_point->y - page_area->y) / view->scale; +} + +static void +view_rect_to_doc_rect (EvView *view, +		       GdkRectangle *view_rect, +		       GdkRectangle *page_area, +		       EvRectangle  *doc_rect) +{ +	doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale; +	doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale; +	doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale; +	doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale; +} + +static void +doc_point_to_view_point (EvView       *view, +                         int           page, +		         EvPoint      *doc_point, +		         GdkPoint     *view_point) +{ +	GdkRectangle page_area; +	GtkBorder border; +	double x, y, view_x, view_y; +	gdouble width, height; + +	get_doc_page_size (view, page, &width, &height); + +	if (view->rotation == 0) { +		x = doc_point->x; +		y = doc_point->y; +	} else if (view->rotation == 90) { +		x = width - doc_point->y; +		y = doc_point->x; +	} else if (view->rotation == 180) { +		x = width - doc_point->x; +		y = height - doc_point->y; +	} else if (view->rotation == 270) { +		x = doc_point->y; +		y = height - doc_point->x; +	} else { +		g_assert_not_reached (); +	} + +	ev_view_get_page_extents (view, page, &page_area, &border); + +	view_x = CLAMP (x * view->scale, 0, page_area.width); +	view_y = CLAMP (y * view->scale, 0, page_area.height); +	view_point->x = view_x + page_area.x; +	view_point->y = view_y + page_area.y; +} + +static void +doc_rect_to_view_rect (EvView       *view, +                       int           page, +		       EvRectangle  *doc_rect, +		       GdkRectangle *view_rect) +{ +	GdkRectangle page_area; +	GtkBorder border; +	double x, y, w, h; +	gdouble width, height; + +	get_doc_page_size (view, page, &width, &height); + +	if (view->rotation == 0) { +		x = doc_rect->x1; +		y = doc_rect->y1; +		w = doc_rect->x2 - doc_rect->x1; +		h = doc_rect->y2 - doc_rect->y1; +	} else if (view->rotation == 90) { +		x = width - doc_rect->y2; +		y = doc_rect->x1; +		w = doc_rect->y2 - doc_rect->y1; +		h = doc_rect->x2 - doc_rect->x1; +	} else if (view->rotation == 180) { +		x = width - doc_rect->x2; +		y = height - doc_rect->y2; +		w = doc_rect->x2 - doc_rect->x1; +		h = doc_rect->y2 - doc_rect->y1; +	} else if (view->rotation == 270) { +		x = doc_rect->y1; +		y = height - doc_rect->x2; +		w = doc_rect->y2 - doc_rect->y1; +		h = doc_rect->x2 - doc_rect->x1; +	} else { +		g_assert_not_reached (); +	} + +	ev_view_get_page_extents (view, page, &page_area, &border); + +	view_rect->x = x * view->scale + page_area.x; +	view_rect->y = y * view->scale + page_area.y; +	view_rect->width = w * view->scale; +	view_rect->height = h * view->scale; +} + +static gboolean +get_dual_even_left (EvView *view) +{ +	return (ev_document_get_n_pages (view->document) > 2); +} + +static void +find_page_at_location (EvView  *view, +		       gdouble  x, +		       gdouble  y, +		       gint    *page, +		       gint    *x_offset, +		       gint    *y_offset) +{ +	int i; + +	if (view->document == NULL) +		return; + +	g_assert (page); +	g_assert (x_offset); +	g_assert (y_offset); + +	for (i = view->start_page; i >= 0 && i <= view->end_page; i++) { +		GdkRectangle page_area; +		GtkBorder border; + +		if (! ev_view_get_page_extents (view, i, &page_area, &border)) +			continue; + +		if ((x >= page_area.x + border.left) && +		    (x < page_area.x + page_area.width - border.right) && +		    (y >= page_area.y + border.top) && +		    (y < page_area.y + page_area.height - border.bottom)) { +			*page = i; +			*x_offset = x - (page_area.x + border.left); +			*y_offset = y - (page_area.y + border.top); +			return; +		} +	} + +	*page = -1; +} + +static gboolean +location_in_text (EvView  *view, +		  gdouble  x, +		  gdouble  y) +{ +	cairo_region_t *region; +	gint page = -1; +	gint x_offset = 0, y_offset = 0; + +	find_page_at_location (view, x, y, &page, &x_offset, &y_offset); + +	if (page == -1) +		return FALSE; +	 +	region = ev_page_cache_get_text_mapping (view->page_cache, page); + +	if (region) +		return cairo_region_contains_point (region, x_offset / view->scale, y_offset / view->scale); +	else +		return FALSE; +} + +static gboolean +location_in_selected_text (EvView  *view, +			   gdouble  x, +			   gdouble  y) +{ +	gint page = -1; +	gint x_offset = 0, y_offset = 0; +	EvViewSelection *selection; +	GList *l = NULL; + +	for (l = view->selection_info.selections; l != NULL; l = l->next) { +		selection = (EvViewSelection *)l->data; +		 +		find_page_at_location (view, x, y, &page, &x_offset, &y_offset); +		 +		if (page != selection->page) +			continue; +		 +		if (selection->covered_region && +		    cairo_region_contains_point (selection->covered_region, x_offset, y_offset)) +			return TRUE; +	} + +	return FALSE; +} + +static gboolean +get_doc_point_from_offset (EvView *view,  +			   gint    page,  +			   gint    x_offset,  +			   gint    y_offset,  +			   gint   *x_new,  +			   gint   *y_new) +{ +        gdouble width, height; +	double x, y; + +	get_doc_page_size (view, page, &width, &height); + +	x_offset = x_offset / view->scale; +	y_offset = y_offset / view->scale; + +        if (view->rotation == 0) { +                x = x_offset; +                y = y_offset; +        } else if (view->rotation == 90) { +                x = y_offset; +                y = width - x_offset; +        } else if (view->rotation == 180) { +                x = width - x_offset; +                y = height - y_offset; +        } else if (view->rotation == 270) { +                x = height - y_offset;  +                y = x_offset; +        } else { +                g_assert_not_reached (); +        } + +	*x_new = x; +	*y_new = y; +	 +	return TRUE; +} + +static gboolean +get_doc_point_from_location (EvView  *view, +			     gdouble  x, +			     gdouble  y, +			     gint    *page, +			     gint    *x_new, +			     gint    *y_new) +{ +	gint x_offset = 0, y_offset = 0; + +	x += view->scroll_x; +	y += view->scroll_y; +	find_page_at_location (view, x, y, page, &x_offset, &y_offset); +	if (*page == -1) +		return FALSE; + +	return get_doc_point_from_offset (view, *page, x_offset, y_offset, x_new, y_new); +} + +static void +ev_view_get_area_from_mapping (EvView        *view, +			       guint          page, +			       EvMappingList *mapping_list, +			       gconstpointer  data, +			       GdkRectangle  *area) +{ +	EvMapping *mapping; + +	mapping = ev_mapping_list_find (mapping_list, data); +	doc_rect_to_view_rect (view, page, &mapping->area, area); +	area->x -= view->scroll_x; +	area->y -= view->scroll_y; +} + + +/*** Hyperref ***/ +static EvLink * +ev_view_get_link_at_location (EvView  *view, +  	         	      gdouble  x, +		              gdouble  y) +{ +	gint page = -1; +	gint x_new = 0, y_new = 0; +	EvMappingList *link_mapping; + +	if (!EV_IS_DOCUMENT_LINKS (view->document)) +		return NULL; + +	if (!get_doc_point_from_location (view, x, y, &page, &x_new, &y_new)) +		return NULL; + +	link_mapping = ev_page_cache_get_link_mapping (view->page_cache, page); + +	if (link_mapping) +		return ev_mapping_list_get_data (link_mapping, x_new, y_new); +	else +		return NULL; +} + +static void +goto_fitr_dest (EvView *view, EvLinkDest *dest) +{ +	EvPoint doc_point; +	gdouble zoom, left, top; +	gboolean change_left, change_top; +	GtkAllocation allocation; + +	gtk_widget_get_allocation (GTK_WIDGET (view), &allocation); + +	left = ev_link_dest_get_left (dest, &change_left); +	top = ev_link_dest_get_top (dest, &change_top); + +	zoom = zoom_for_size_best_fit (ev_link_dest_get_right (dest) - left, +				       ev_link_dest_get_bottom (dest) - top, +				       allocation.width, +				       allocation.height); + +	ev_document_model_set_sizing_mode (view->model, EV_SIZING_FREE); +	ev_document_model_set_scale (view->model, zoom); + +	doc_point.x = change_left ? left : 0; +	doc_point.y = change_top ? top : 0; +	view->pending_point = doc_point; + +	ev_view_change_page (view, ev_link_dest_get_page (dest)); +} + +static void +goto_fitv_dest (EvView *view, EvLinkDest *dest) +{ +	EvPoint doc_point; +	gdouble doc_width, doc_height; +	gint page; +	double zoom, left; +	gboolean change_left; +	GtkAllocation allocation; + +	gtk_widget_get_allocation (GTK_WIDGET (view), &allocation); + +	page = ev_link_dest_get_page (dest); +	ev_document_get_page_size (view->document, page, &doc_width, &doc_height); + +	left = ev_link_dest_get_left (dest, &change_left); +	doc_point.x = change_left ? left : 0; +	doc_point.y = 0; + +	zoom = zoom_for_size_fit_height (doc_width - doc_point.x , doc_height, +					 allocation.width, +				         allocation.height); + +	ev_document_model_set_sizing_mode (view->model, EV_SIZING_FREE); +	ev_document_model_set_scale (view->model, zoom); + +	view->pending_point = doc_point; + +	ev_view_change_page (view, page); +} + +static void +goto_fith_dest (EvView *view, EvLinkDest *dest) +{ +	EvPoint doc_point; +	gdouble doc_width, doc_height; +	gint page; +	gdouble zoom, top; +	gboolean change_top; +	GtkAllocation allocation; + +	gtk_widget_get_allocation (GTK_WIDGET (view), &allocation); + +	page = ev_link_dest_get_page (dest); +	ev_document_get_page_size (view->document, page, &doc_width, &doc_height); + +	top = ev_link_dest_get_top (dest, &change_top); + +	doc_point.x = 0; +	doc_point.y = change_top ? top : 0; + +	zoom = zoom_for_size_fit_width (doc_width, top, +					allocation.width, +				        allocation.height); + +	ev_document_model_set_sizing_mode (view->model, EV_SIZING_FIT_WIDTH); +	ev_document_model_set_scale (view->model, zoom); + +	view->pending_point = doc_point; + +	ev_view_change_page (view, page); +} + +static void +goto_fit_dest (EvView *view, EvLinkDest *dest) +{ +	double zoom; +	gdouble doc_width, doc_height; +	int page; +	GtkAllocation allocation; + +	gtk_widget_get_allocation (GTK_WIDGET (view), &allocation); + +	page = ev_link_dest_get_page (dest); +	ev_document_get_page_size (view->document, page, &doc_width, &doc_height); + +	zoom = zoom_for_size_best_fit (doc_width, doc_height, +				       allocation.width, +				       allocation.height); + +	ev_document_model_set_sizing_mode (view->model, EV_SIZING_BEST_FIT); +	ev_document_model_set_scale (view->model, zoom); + +	ev_view_change_page (view, page); +} + +static void +goto_xyz_dest (EvView *view, EvLinkDest *dest) +{ +	EvPoint doc_point; +	gint page; +	gdouble zoom, left, top; +	gboolean change_zoom, change_left, change_top;  + +	zoom = ev_link_dest_get_zoom (dest, &change_zoom); +	page = ev_link_dest_get_page (dest); + +	if (change_zoom && zoom > 1) { +		ev_document_model_set_sizing_mode (view->model, EV_SIZING_FREE); +		ev_document_model_set_scale (view->model, zoom); +	} + +	left = ev_link_dest_get_left (dest, &change_left); +	top = ev_link_dest_get_top (dest, &change_top); + +	doc_point.x = change_left ? left : 0; +	doc_point.y = change_top ? top : 0; +	view->pending_point = doc_point; + +	ev_view_change_page (view, page); +} + +static void +goto_dest (EvView *view, EvLinkDest *dest) +{ +	EvLinkDestType type; +	int page, n_pages, current_page; + +	page = ev_link_dest_get_page (dest); +	n_pages = ev_document_get_n_pages (view->document); + +	if (page < 0 || page >= n_pages) +		return; + +	current_page = view->current_page; +	 +	type = ev_link_dest_get_dest_type (dest); + +	switch (type) { +	        case EV_LINK_DEST_TYPE_PAGE: +			ev_document_model_set_page (view->model, page); +			break; +	        case EV_LINK_DEST_TYPE_FIT: +			goto_fit_dest (view, dest); +			break; +	        case EV_LINK_DEST_TYPE_FITH: +			goto_fith_dest (view, dest); +			break; +	        case EV_LINK_DEST_TYPE_FITV: +			goto_fitv_dest (view, dest); +			break; +	        case EV_LINK_DEST_TYPE_FITR: +			goto_fitr_dest (view, dest); +			break; +	        case EV_LINK_DEST_TYPE_XYZ: +			goto_xyz_dest (view, dest); +			break; +	        case EV_LINK_DEST_TYPE_PAGE_LABEL: +			ev_document_model_set_page_by_label (view->model, ev_link_dest_get_page_label (dest)); +			break; +	        default: +			g_assert_not_reached (); +	} + +	if (current_page != view->current_page) +		ev_document_model_set_page (view->model, view->current_page); +} + +static void +ev_view_goto_dest (EvView *view, EvLinkDest *dest) +{ +	EvLinkDestType type; + +	type = ev_link_dest_get_dest_type (dest); + +	if (type == EV_LINK_DEST_TYPE_NAMED) { +		EvLinkDest  *dest2;	 +		const gchar *named_dest; + +		named_dest = ev_link_dest_get_named_dest (dest); +		dest2 = ev_document_links_find_link_dest (EV_DOCUMENT_LINKS (view->document), +							  named_dest); +		if (dest2) { +			goto_dest (view, dest2); +			g_object_unref (dest2); +		} + +		return; +	} + +	goto_dest (view, dest); +} +	 +void +ev_view_handle_link (EvView *view, EvLink *link) +{ +	EvLinkAction    *action = NULL; +	EvLinkActionType type; + +	action = ev_link_get_action (link); +	if (!action) +		return; + +	type = ev_link_action_get_action_type (action); + +	switch (type) { +	        case EV_LINK_ACTION_TYPE_GOTO_DEST: { +			EvLinkDest *dest; +			 +			g_signal_emit (view, signals[SIGNAL_HANDLE_LINK], 0, link); +		 +			dest = ev_link_action_get_dest (action); +			ev_view_goto_dest (view, dest); +		} +			break; +	        case EV_LINK_ACTION_TYPE_GOTO_REMOTE: +	        case EV_LINK_ACTION_TYPE_EXTERNAL_URI: +	        case EV_LINK_ACTION_TYPE_LAUNCH: +	        case EV_LINK_ACTION_TYPE_NAMED: +			g_signal_emit (view, signals[SIGNAL_EXTERNAL_LINK], 0, action); +			break; +	} +} + +static char * +tip_from_action_named (EvLinkAction *action) +{ +	const gchar *name = ev_link_action_get_name (action); +	 +	if (g_ascii_strcasecmp (name, "FirstPage") == 0) { +		return g_strdup (_("Go to first page")); +	} else if (g_ascii_strcasecmp (name, "PrevPage") == 0) { +		return g_strdup (_("Go to previous page")); +	} else if (g_ascii_strcasecmp (name, "NextPage") == 0) { +		return g_strdup (_("Go to next page")); +	} else if (g_ascii_strcasecmp (name, "LastPage") == 0) { +		return g_strdup (_("Go to last page")); +	} else if (g_ascii_strcasecmp (name, "GoToPage") == 0) { +		return g_strdup (_("Go to page")); +	} else if (g_ascii_strcasecmp (name, "Find") == 0) { +		return g_strdup (_("Find")); +	} +	 +	return NULL; +} + +static char * +tip_from_link (EvView *view, EvLink *link) +{ +	EvLinkAction *action; +	EvLinkActionType type; +	char *msg = NULL; +	char *page_label; +	const char *title; + +	action = ev_link_get_action (link); +	title = ev_link_get_title (link); +	 +	if (!action) +		return title ? g_strdup (title) : NULL; +		 +	type = ev_link_action_get_action_type (action); + +	switch (type) { +	        case EV_LINK_ACTION_TYPE_GOTO_DEST: +			page_label = ev_document_links_get_dest_page_label (EV_DOCUMENT_LINKS (view->document), +									    ev_link_action_get_dest (action)); +			if (page_label) { +    				msg = g_strdup_printf (_("Go to page %s"), page_label); +				g_free (page_label); +			} +			break; +	        case EV_LINK_ACTION_TYPE_GOTO_REMOTE: +			if (title) { +				msg = g_strdup_printf (_("Go to %s on file ā%sā"), title, +						       ev_link_action_get_filename (action)); +			} else { +				msg = g_strdup_printf (_("Go to file ā%sā"), +						       ev_link_action_get_filename (action)); +			} +			break; +	        case EV_LINK_ACTION_TYPE_EXTERNAL_URI: +			msg = g_strdup (ev_link_action_get_uri (action)); +			break; +	        case EV_LINK_ACTION_TYPE_LAUNCH: +			msg = g_strdup_printf (_("Launch %s"), +					       ev_link_action_get_filename (action)); +			break; +	        case EV_LINK_ACTION_TYPE_NAMED: +			msg = tip_from_action_named (action); +			break; +	        default: +			if (title) +				msg = g_strdup (title); +			break; +	} +	 +	return msg; +} + +static void +ev_view_handle_cursor_over_xy (EvView *view, gint x, gint y) +{ +	EvLink       *link; +	EvFormField  *field; +	EvAnnotation *annot = NULL; + +	if (view->cursor == EV_VIEW_CURSOR_HIDDEN) +		return; + +	if (view->adding_annot) { +		if (view->cursor != EV_VIEW_CURSOR_ADD) +			ev_view_set_cursor (view, EV_VIEW_CURSOR_ADD); +		return; +	} + +	if (view->drag_info.in_drag) { +		if (view->cursor != EV_VIEW_CURSOR_DRAG) +			ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG); +		return; +	} + +	if (view->scroll_info.autoscrolling) { +		if (view->cursor != EV_VIEW_CURSOR_AUTOSCROLL) +			ev_view_set_cursor (view, EV_VIEW_CURSOR_AUTOSCROLL); +		return; +	} + +	link = ev_view_get_link_at_location (view, x, y); +        if (link) { +		ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK); +	} else if ((field = ev_view_get_form_field_at_location (view, x, y))) { +		if (field->is_read_only) { +			if (view->cursor == EV_VIEW_CURSOR_LINK || +			    view->cursor == EV_VIEW_CURSOR_IBEAM || +			    view->cursor == EV_VIEW_CURSOR_DRAG) +				ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); +		} else if (EV_IS_FORM_FIELD_TEXT (field)) { +			ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM); +		} else { +			ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK); +		} +	} else if ((annot = ev_view_get_annotation_at_location (view, x, y))) { +		ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK); +	} else if (location_in_text (view, x + view->scroll_x, y + view->scroll_y)) { +		ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM); +	} else { +		if (view->cursor == EV_VIEW_CURSOR_LINK || +		    view->cursor == EV_VIEW_CURSOR_IBEAM || +		    view->cursor == EV_VIEW_CURSOR_DRAG || +		    view->cursor == EV_VIEW_CURSOR_AUTOSCROLL || +		    view->cursor == EV_VIEW_CURSOR_ADD) +			ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); +	} + +	if (link || annot) +		g_object_set (view, "has-tooltip", TRUE, NULL); +} + +/*** Images ***/ +static EvImage * +ev_view_get_image_at_location (EvView  *view, +			       gdouble  x, +			       gdouble  y) +{ +	gint page = -1; +	gint x_new = 0, y_new = 0; +	EvMappingList *image_mapping; + +	if (!EV_IS_DOCUMENT_IMAGES (view->document)) +		return NULL; + +	if (!get_doc_point_from_location (view, x, y, &page, &x_new, &y_new)) +		return NULL; + +	image_mapping = ev_page_cache_get_image_mapping (view->page_cache, page); + +	if (image_mapping) +		return ev_mapping_list_get_data (image_mapping, x_new, y_new); +	else +		return NULL; +} + +/*** Forms ***/ +static EvFormField * +ev_view_get_form_field_at_location (EvView  *view, +				    gdouble  x, +				    gdouble  y) +{ +	gint page = -1; +	gint x_new = 0, y_new = 0; +	EvMappingList *forms_mapping; +	 +	if (!EV_IS_DOCUMENT_FORMS (view->document)) +		return NULL; + +	if (!get_doc_point_from_location (view, x, y, &page, &x_new, &y_new)) +		return NULL; + +	forms_mapping = ev_page_cache_get_form_field_mapping (view->page_cache, page); + +	if (forms_mapping) +		return ev_mapping_list_get_data (forms_mapping, x_new, y_new); +	else +		return NULL; +} + +static cairo_region_t * +ev_view_form_field_get_region (EvView      *view, +			       EvFormField *field) +{ +	GdkRectangle   view_area; +	EvMappingList *forms_mapping; + +	forms_mapping = ev_page_cache_get_form_field_mapping (view->page_cache, +							      field->page->index); +	ev_view_get_area_from_mapping (view, field->page->index, +				       forms_mapping, +				       field, &view_area); + +	return cairo_region_create_rectangle (&view_area); +} + +static gboolean +ev_view_forms_remove_widgets (EvView *view) +{ +	ev_view_remove_all (view); + +	return FALSE; +} + +static void +ev_view_form_field_destroy (GtkWidget *widget, +			    EvView    *view) +{ +	g_idle_add ((GSourceFunc)ev_view_forms_remove_widgets, view); +} + +static GtkWidget * +ev_view_form_field_button_create_widget (EvView      *view, +					 EvFormField *field) +{ +	EvFormFieldButton *field_button = EV_FORM_FIELD_BUTTON (field); +	cairo_region_t    *field_region = NULL; +	 +	switch (field_button->type) { +	        case EV_FORM_FIELD_BUTTON_PUSH: +			return NULL; +	        case EV_FORM_FIELD_BUTTON_CHECK: +  	        case EV_FORM_FIELD_BUTTON_RADIO: { +			gboolean       state; +			EvMappingList *forms_mapping; +			GList         *l; + +			state = ev_document_forms_form_field_button_get_state (EV_DOCUMENT_FORMS (view->document), +									       field); + +			/* FIXME: it actually depends on NoToggleToOff flags */ +			if (field_button->type == EV_FORM_FIELD_BUTTON_RADIO && +			    state && field_button->state) +				return NULL; +			 +			field_region = ev_view_form_field_get_region (view, field); + +			/* For radio buttons and checkbox buttons that are in a set +			 * we need to update also the region for the current selected item +			 */ +			forms_mapping = ev_page_cache_get_form_field_mapping (view->page_cache, +									      field->page->index); +			for (l = ev_mapping_list_get_list (forms_mapping); l; l = g_list_next (l)) { +				EvFormField *button = ((EvMapping *)(l->data))->data; +				cairo_region_t *button_region; + +				if (button->id == field->id) +					continue; + +				/* FIXME: only buttons in the same group should be updated */ +				if (!EV_IS_FORM_FIELD_BUTTON (button) || +				    EV_FORM_FIELD_BUTTON (button)->type != field_button->type || +				    EV_FORM_FIELD_BUTTON (button)->state != TRUE) +					continue; + +				button_region = ev_view_form_field_get_region (view, button); +				cairo_region_union (field_region, button_region); +				cairo_region_destroy (button_region); +			} +			 +			ev_document_forms_form_field_button_set_state (EV_DOCUMENT_FORMS (view->document), +								       field, !state); +			field_button->state = !state; +		} +			break; +	} + +	ev_view_reload_page (view, field->page->index, field_region); +	cairo_region_destroy (field_region); +	 +	return NULL; +} + +static void +ev_view_form_field_text_save (EvView    *view, +			      GtkWidget *widget) +{ +	EvFormField *field; + +	if (!view->document) +		return; +	 +	field = g_object_get_data (G_OBJECT (widget), "form-field"); +	 +	if (field->changed) { +		EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field); +		cairo_region_t  *field_region; + +		field_region = ev_view_form_field_get_region (view, field); +		 +		ev_document_forms_form_field_text_set_text (EV_DOCUMENT_FORMS (view->document), +							    field, field_text->text); +		field->changed = FALSE; +		ev_view_reload_page (view, field->page->index, field_region); +		cairo_region_destroy (field_region); +	} +} + +static void +ev_view_form_field_text_changed (GtkWidget   *widget, +				 EvFormField *field) +{ +	EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field); +	gchar           *text = NULL; + +	if (GTK_IS_ENTRY (widget)) { +		text = g_strdup (gtk_entry_get_text (GTK_ENTRY (widget))); +	} else if (GTK_IS_TEXT_BUFFER (widget)) { +		GtkTextIter start, end; + +		gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (widget), &start, &end); +		text = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (widget), +						 &start, &end, FALSE); +	} + +	if (!field_text->text || +	    (field_text->text && g_ascii_strcasecmp (field_text->text, text) != 0)) { +		g_free (field_text->text); +		field_text->text = text; +		field->changed = TRUE; +	} +} + +static GtkWidget * +ev_view_form_field_text_create_widget (EvView      *view, +				       EvFormField *field) +{ +	EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field); +	GtkWidget       *text = NULL; +	gchar           *txt; + +	txt = ev_document_forms_form_field_text_get_text (EV_DOCUMENT_FORMS (view->document), +							  field); + +	switch (field_text->type) { +	        case EV_FORM_FIELD_TEXT_FILE_SELECT: +			/* TODO */ +	        case EV_FORM_FIELD_TEXT_NORMAL: +			text = gtk_entry_new (); +			gtk_entry_set_has_frame (GTK_ENTRY (text), FALSE); +			gtk_entry_set_max_length (GTK_ENTRY (text), field_text->max_len); +			gtk_entry_set_visibility (GTK_ENTRY (text), !field_text->is_password); +			 +			if (txt) { +				gtk_entry_set_text (GTK_ENTRY (text), txt); +				g_free (txt); +			} + +			g_signal_connect (text, "changed", +					  G_CALLBACK (ev_view_form_field_text_changed), +					  field); +			g_signal_connect_after (text, "activate", +						G_CALLBACK (ev_view_form_field_destroy), +						view); +			break; +	        case EV_FORM_FIELD_TEXT_MULTILINE: { +			GtkTextBuffer *buffer; +		 +			text = gtk_text_view_new (); +			buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text)); +			 +			if (txt) { +				gtk_text_buffer_set_text (buffer, txt, -1); +				g_free (txt); +			} +			 +			g_signal_connect (buffer, "changed", +					  G_CALLBACK (ev_view_form_field_text_changed), +					  field); +		} +			break; +	}			 + +	g_object_weak_ref (G_OBJECT (text), +			   (GWeakNotify)ev_view_form_field_text_save, +			   view); + +	return text; +} + +static void +ev_view_form_field_choice_save (EvView    *view, +				GtkWidget *widget) +{ +	EvFormField *field; + +	if (!view->document) +		return; +	 +	field = g_object_get_data (G_OBJECT (widget), "form-field"); + +	if (field->changed) { +		GList             *l; +		EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field); +		cairo_region_t    *field_region; + +		field_region = ev_view_form_field_get_region (view, field); + +		if (field_choice->is_editable) { +			ev_document_forms_form_field_choice_set_text (EV_DOCUMENT_FORMS (view->document), +								      field, field_choice->text); +		} else { +			ev_document_forms_form_field_choice_unselect_all (EV_DOCUMENT_FORMS (view->document), field); +			for (l = field_choice->selected_items; l; l = g_list_next (l)) { +				ev_document_forms_form_field_choice_select_item (EV_DOCUMENT_FORMS (view->document), +										 field, +										 GPOINTER_TO_INT (l->data)); +			} +		} +		field->changed = FALSE; +		ev_view_reload_page (view, field->page->index, field_region); +		cairo_region_destroy (field_region); +	} +} + +static void +ev_view_form_field_choice_changed (GtkWidget   *widget, +				   EvFormField *field) +{ +	EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field); +	 +	if (GTK_IS_COMBO_BOX (widget)) { +		gint item; +		 +		item = gtk_combo_box_get_active (GTK_COMBO_BOX (widget)); +		if (!field_choice->selected_items || +		    GPOINTER_TO_INT (field_choice->selected_items->data) != item) { +			g_list_free (field_choice->selected_items); +			field_choice->selected_items = NULL; +			field_choice->selected_items = g_list_prepend (field_choice->selected_items, +								       GINT_TO_POINTER (item)); +			field->changed = TRUE; +		} + +		if (GTK_IS_COMBO_BOX_ENTRY (widget)) { +			gchar *text; +			 +			text = gtk_combo_box_get_active_text (GTK_COMBO_BOX (widget)); +			if (!field_choice->text || +			    (field_choice->text && g_ascii_strcasecmp (field_choice->text, text) != 0)) { +				g_free (field_choice->text); +				field_choice->text = text; +				field->changed = TRUE; +			} +		} +	} else if (GTK_IS_TREE_SELECTION (widget)) { +		GtkTreeSelection *selection = GTK_TREE_SELECTION (widget); +		GtkTreeModel     *model; +		GList            *items, *l; +		 +		items = gtk_tree_selection_get_selected_rows (selection, &model); +		g_list_free (field_choice->selected_items); +		field_choice->selected_items = NULL; + +		for (l = items; l && l->data; l = g_list_next (l)) { +			GtkTreeIter  iter; +			GtkTreePath *path = (GtkTreePath *)l->data; +			gint         item; +			 +			gtk_tree_model_get_iter (model, &iter, path); +			gtk_tree_model_get (model, &iter, 1, &item, -1); + +			field_choice->selected_items = g_list_prepend (field_choice->selected_items, +								       GINT_TO_POINTER (item)); + +			gtk_tree_path_free (path); +		} + +		g_list_free (items); + +		field->changed = TRUE; +	} +} + +static GtkWidget * +ev_view_form_field_choice_create_widget (EvView      *view, +					 EvFormField *field) +{ +	EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field); +	GtkWidget         *choice; +	GtkTreeModel      *model; +	gint               n_items, i; +	gint               selected_item = 0; + +	n_items = ev_document_forms_form_field_choice_get_n_items (EV_DOCUMENT_FORMS (view->document), +								   field); +	model = GTK_TREE_MODEL (gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT)); +	for (i = 0; i < n_items; i++) { +		GtkTreeIter iter; +		gchar      *item; + +		item = ev_document_forms_form_field_choice_get_item (EV_DOCUMENT_FORMS (view->document), +								     field, i); +		if (ev_document_forms_form_field_choice_is_item_selected ( +			    EV_DOCUMENT_FORMS (view->document), field, i)) { +			selected_item = i; +			/* FIXME: we need a get_selected_items function in poppler */ +			field_choice->selected_items = g_list_prepend (field_choice->selected_items, +								       GINT_TO_POINTER (i)); +		} +		 +		if (item) { +			gtk_list_store_append (GTK_LIST_STORE (model), &iter); +			gtk_list_store_set (GTK_LIST_STORE (model), &iter, +					    0, item, +					    1, i, +					    -1); +			g_free (item); +		} +	} + +	if (field_choice->type == EV_FORM_FIELD_CHOICE_LIST) { +		GtkCellRenderer  *renderer; +		GtkWidget        *tree_view; +		GtkTreeSelection *selection; + +		tree_view = gtk_tree_view_new_with_model (model); +		gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), FALSE); + +		selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view)); +		if (field_choice->multi_select) { +			gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE); +		} + +		/* TODO: set selected items */ + +		renderer = gtk_cell_renderer_text_new (); +		gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view), +							     0, +							     "choix", renderer, +							     "text", 0, +							     NULL); + +		choice = gtk_scrolled_window_new (NULL, NULL); +		gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (choice), +						GTK_POLICY_AUTOMATIC, +						GTK_POLICY_AUTOMATIC); +		gtk_container_add (GTK_CONTAINER (choice), tree_view); +		gtk_widget_show (tree_view); + +		g_signal_connect (selection, "changed", +				  G_CALLBACK (ev_view_form_field_choice_changed), +				  field); +		g_signal_connect_after (selection, "changed", +					G_CALLBACK (ev_view_form_field_destroy), +					view); +	} else if (field_choice->is_editable) { /* ComboBoxEntry */ +		gchar *text; +		 +		choice = gtk_combo_box_entry_new_with_model (model, 0); +		text = ev_document_forms_form_field_choice_get_text (EV_DOCUMENT_FORMS (view->document), field); +		if (text) { +			gtk_entry_set_text (GTK_ENTRY (gtk_bin_get_child (GTK_BIN (choice))), text); +			g_free (text); +		} + +		g_signal_connect (choice, "changed", +				  G_CALLBACK (ev_view_form_field_choice_changed), +				  field); +		g_signal_connect_after (gtk_bin_get_child (GTK_BIN (choice)), +					"activate", +					G_CALLBACK (ev_view_form_field_destroy), +					view); +	} else { /* ComboBoxText */ +		GtkCellRenderer *renderer; + +		choice = gtk_combo_box_new_with_model (model); +		renderer = gtk_cell_renderer_text_new (); +		gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (choice), +					    renderer, TRUE); +		gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (choice), +						renderer, +						"text", 0, +						NULL); +		gtk_combo_box_set_active (GTK_COMBO_BOX (choice), selected_item); +		gtk_combo_box_popup (GTK_COMBO_BOX (choice)); +		 +		g_signal_connect (choice, "changed", +				  G_CALLBACK (ev_view_form_field_choice_changed), +				  field); +		g_signal_connect_after (choice, "changed", +					G_CALLBACK (ev_view_form_field_destroy), +					view); +	} + +	g_object_unref (model); + +	g_object_weak_ref (G_OBJECT (choice), +			   (GWeakNotify)ev_view_form_field_choice_save, +			   view); + +	return choice; +} + +static void +ev_view_handle_form_field (EvView      *view, +			   EvFormField *field, +			   gdouble      x, +			   gdouble      y) +{ +	GtkWidget     *field_widget = NULL; +	EvMappingList *form_field_mapping; +	GdkRectangle   view_area; + +	if (field->is_read_only) +		return; +	 +	if (EV_IS_FORM_FIELD_BUTTON (field)) { +		field_widget = ev_view_form_field_button_create_widget (view, field); +	} else if (EV_IS_FORM_FIELD_TEXT (field)) { +		field_widget = ev_view_form_field_text_create_widget (view, field); +	} else if (EV_IS_FORM_FIELD_CHOICE (field)) { +		field_widget = ev_view_form_field_choice_create_widget (view, field); +	} else if (EV_IS_FORM_FIELD_SIGNATURE (field)) { +		/* TODO */ +	} + +	/* Form field doesn't require a widget */ +	if (!field_widget) +		return; + +	g_object_set_data_full (G_OBJECT (field_widget), "form-field", +				g_object_ref (field), +				(GDestroyNotify)g_object_unref); + +	form_field_mapping = ev_page_cache_get_form_field_mapping (view->page_cache, +								   field->page->index); +	ev_view_get_area_from_mapping (view, field->page->index, +				       form_field_mapping, +				       field, &view_area); + +	gtk_layout_put (GTK_LAYOUT (view), field_widget, view_area.x, view_area.y); +	gtk_widget_show (field_widget); +	gtk_widget_grab_focus (field_widget); +} + +/* Annotations */ +static EvViewWindowChild * +ev_view_get_window_child (EvView    *view, +			  GtkWidget *window) +{ +	GList *children = view->window_children; + +	while (children) { +		EvViewWindowChild *child; + +		child = (EvViewWindowChild *)children->data; +		children = children->next; + +		if (child->window == window) +			return child; +	} + +	return NULL; +} + +static void +ev_view_window_child_move (EvView            *view, +			   EvViewWindowChild *child, +			   gint               x, +			   gint               y) +{ +	GtkAllocation allocation; +	gint          width, height; + +	gtk_widget_get_allocation (GTK_WIDGET (view), &allocation); +	gtk_window_get_size (GTK_WINDOW (child->window), &width, &height); + +	child->x = x; +	child->y = y; +	gtk_window_move (GTK_WINDOW (child->window), +			 CLAMP (x, child->parent_x, +				child->parent_x + allocation.width - width), +			 CLAMP (y, child->parent_y, +				child->parent_y + allocation.height - height)); +} + +static void +ev_view_window_child_move_with_parent (EvView    *view, +				       GtkWidget *window) +{ +	EvViewWindowChild *child; +	gint               root_x, root_y; + +	child = ev_view_get_window_child (view, window); +	gdk_window_get_origin (gtk_widget_get_window (GTK_WIDGET (view)), +			       &root_x, &root_y); +	if (root_x != child->parent_x || root_y != child->parent_y) { +		gint dest_x, dest_y; + +		dest_x = child->x + (root_x - child->parent_x); +		dest_y = child->y + (root_y - child->parent_y); +		child->parent_x = root_x; +		child->parent_y = root_y; +		ev_view_window_child_move (view, child, dest_x, dest_y); +	} + +	if (child->visible && !gtk_widget_get_visible (window)) +		gtk_widget_show (window); +} + +static void +ev_view_window_child_put (EvView    *view, +			  GtkWidget *window, +			  guint      page, +			  gint       x, +			  gint       y, +			  gdouble    orig_x, +			  gdouble    orig_y) +{ +	EvViewWindowChild *child; +	gint               root_x, root_y; + +	gdk_window_get_origin (gtk_widget_get_window (GTK_WIDGET (view)), +			       &root_x, &root_y); + +	child = g_new0 (EvViewWindowChild, 1); +	child->window = window; +	child->page = page; +	child->orig_x = orig_x; +	child->orig_y = orig_y; +	child->parent_x = root_x; +	child->parent_y = root_y; +	child->visible = ev_annotation_window_is_open (EV_ANNOTATION_WINDOW (window)); +	ev_view_window_child_move (view, child, x + root_x, y + root_y); + +	if (child->visible) +		gtk_widget_show (window); +	else +		gtk_widget_hide (window); + +	view->window_children = g_list_append (view->window_children, child); +} + +static EvViewWindowChild * +ev_view_find_window_child_for_annot (EvView       *view, +				     guint         page, +				     EvAnnotation *annot) +{ +	GList *children = view->window_children; + +	while (children) { +		EvViewWindowChild *child; +		EvAnnotation      *wannot; + +		child = (EvViewWindowChild *)children->data; +		children = children->next; + +		if (child->page != page) +			continue; + +		wannot = ev_annotation_window_get_annotation (EV_ANNOTATION_WINDOW (child->window)); +		if (ev_annotation_equal (wannot, annot)) +			return child; +	} + +	return NULL; +} + +static void +ev_view_window_children_free (EvView *view) +{ +	GList *l; + +	if (!view->window_children) +		return; + +	for (l = view->window_children; l && l->data; l = g_list_next (l)) { +		EvViewWindowChild *child; + +		child = (EvViewWindowChild *)l->data; +		gtk_widget_destroy (GTK_WIDGET (child->window)); +		g_free (child); +	} +	g_list_free (view->window_children); +	view->window_children = NULL; +	view->window_child_focus = NULL; +} + +static void +annotation_window_grab_focus (GtkWidget *widget, +			      EvView    *view) +{ +	if (view->window_child_focus) +		ev_annotation_window_ungrab_focus (EV_ANNOTATION_WINDOW (view->window_child_focus->window)); +	view->window_child_focus = ev_view_get_window_child (view, widget); +} + +static void +annotation_window_closed (EvAnnotationWindow *window, +			  EvView             *view) +{ +	EvViewWindowChild *child; + +	child = ev_view_get_window_child (view, GTK_WIDGET (window)); +	child->visible = FALSE; +} + +static void +annotation_window_moved (EvAnnotationWindow *window, +			 gint                x, +			 gint                y, +			 EvView             *view) +{ +	EvViewWindowChild *child; +	GdkRectangle       page_area; +	GtkBorder          border; +	GdkRectangle       view_rect; +	EvRectangle        doc_rect; +	gint               width, height; + +	child = ev_view_get_window_child (view, GTK_WIDGET (window)); +	if (child->x == x && child->y == y) +		return; + +	child->moved = TRUE; +	child->x = x; +	child->y = y; + +	/* Window has been moved by the user, +	 * we have to set a new origin in doc coords +	 */ +	gtk_window_get_size (GTK_WINDOW (window), &width, &height); +	view_rect.x = (x - child->parent_x) + view->scroll_x; +	view_rect.y = (y - child->parent_y) + view->scroll_y; +	view_rect.width = width; +	view_rect.height = height; + +	ev_view_get_page_extents (view, child->page, &page_area, &border); +	view_rect_to_doc_rect (view, &view_rect, &page_area, &doc_rect); +	child->orig_x = doc_rect.x1; +	child->orig_y = doc_rect.y1; +} + +static void +ev_view_annotation_save_contents (EvView       *view, +				  GParamSpec   *pspec, +				  EvAnnotation *annot) +{ +	if (!view->document) +		return; + +	ev_document_doc_mutex_lock (); +	ev_document_annotations_save_annotation (EV_DOCUMENT_ANNOTATIONS (view->document), +						 annot, EV_ANNOTATIONS_SAVE_CONTENTS); +	ev_document_doc_mutex_unlock (); +} + +static GtkWidget * +ev_view_create_annotation_window (EvView       *view, +				  EvAnnotation *annot, +				  GtkWindow    *parent) +{ +	GtkWidget   *window; +	EvRectangle  doc_rect; +	GdkRectangle view_rect; +	guint        page; + +	window = ev_annotation_window_new (annot, parent); +	g_signal_connect (window, "grab_focus", +			  G_CALLBACK (annotation_window_grab_focus), +			  view); +	g_signal_connect (window, "closed", +			  G_CALLBACK (annotation_window_closed), +			  view); +	g_signal_connect (window, "moved", +			  G_CALLBACK (annotation_window_moved), +			  view); +	g_signal_connect_swapped (annot, "notify::contents", +				  G_CALLBACK (ev_view_annotation_save_contents), +				  view); +	g_object_set_data (G_OBJECT (annot), "popup", window); + +	page = ev_annotation_get_page_index (annot); +	ev_annotation_window_get_rectangle (EV_ANNOTATION_WINDOW (window), &doc_rect); +	doc_rect_to_view_rect (view, page, &doc_rect, &view_rect); +	view_rect.x -= view->scroll_x; +	view_rect.y -= view->scroll_y; + +	ev_view_window_child_put (view, window, page, +				  view_rect.x, view_rect.y, +				  doc_rect.x1, doc_rect.y1); + +	return window; +} + +static void +show_annotation_windows (EvView *view, +			 gint    page) +{ +	EvMappingList *annots; +	GList         *l; +	GtkWindow     *parent; + +	parent = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (view))); + +	annots = ev_page_cache_get_annot_mapping (view->page_cache, page); + +	for (l = ev_mapping_list_get_list (annots); l && l->data; l = g_list_next (l)) { +		EvAnnotation      *annot; +		EvViewWindowChild *child; +		GtkWidget         *window; + +		annot = ((EvMapping *)(l->data))->data; + +		if (!EV_IS_ANNOTATION_MARKUP (annot)) +			continue; + +		if (!ev_annotation_markup_has_popup (EV_ANNOTATION_MARKUP (annot))) +			continue; + +		window = g_object_get_data (G_OBJECT (annot), "popup"); +		if (window) { +			ev_view_window_child_move_with_parent (view, window); +			continue; +		} + +		/* Look if we already have a popup for this annot */ +		child = ev_view_find_window_child_for_annot (view, page, annot); +		window = child ? child->window : NULL; +		if (window) { +			ev_annotation_window_set_annotation (EV_ANNOTATION_WINDOW (window), annot); +			g_object_set_data (G_OBJECT (annot), "popup", window); +			ev_view_window_child_move_with_parent (view, window); +		} else { +			ev_view_create_annotation_window (view, annot, parent); +		} +	} +} + +static void +hide_annotation_windows (EvView *view, +			 gint    page) +{ +	EvMappingList *annots; +	GList         *l; + +	annots = ev_page_cache_get_annot_mapping (view->page_cache, page); + +	for (l = ev_mapping_list_get_list (annots); l && l->data; l = g_list_next (l)) { +		EvAnnotation *annot; +		GtkWidget    *window; + +		annot = ((EvMapping *)(l->data))->data; + +		if (!EV_IS_ANNOTATION_MARKUP (annot)) +			continue; + +		window = g_object_get_data (G_OBJECT (annot), "popup"); +		if (window) +			gtk_widget_hide (window); +	} +} + +static EvAnnotation * +ev_view_get_annotation_at_location (EvView  *view, +				    gdouble  x, +				    gdouble  y) +{ +	gint page = -1; +	gint x_new = 0, y_new = 0; +	EvMappingList *annotations_mapping; + +	if (!EV_IS_DOCUMENT_ANNOTATIONS (view->document)) +		return NULL; + +	if (!get_doc_point_from_location (view, x, y, &page, &x_new, &y_new)) +		return NULL; + +	annotations_mapping = ev_page_cache_get_annot_mapping (view->page_cache, page); + +	if (annotations_mapping) +		return ev_mapping_list_get_data (annotations_mapping, x_new, y_new); +	else +		return NULL; +} + +static void +ev_view_annotation_show_popup_window (EvView    *view, +				      GtkWidget *window) +{ +	EvViewWindowChild *child; + +	if (!window) +		return; + +	child = ev_view_get_window_child (view, window); +	if (!child->visible) { +		child->visible = TRUE; +		ev_view_window_child_move (view, child, child->x, child->y); +		gtk_widget_show (window); +	} +} + +static void +ev_view_handle_annotation (EvView       *view, +			   EvAnnotation *annot, +			   gdouble       x, +			   gdouble       y, +			   guint32       timestamp) +{ +	if (EV_IS_ANNOTATION_MARKUP (annot)) { +		GtkWidget *window; + +		window = g_object_get_data (G_OBJECT (annot), "popup"); +		ev_view_annotation_show_popup_window (view, window); +	} + +	if (EV_IS_ANNOTATION_ATTACHMENT (annot)) { +		EvAttachment *attachment; + +		attachment = ev_annotation_attachment_get_attachment (EV_ANNOTATION_ATTACHMENT (annot)); +		if (attachment) { +			GError *error = NULL; + +			ev_attachment_open (attachment, +					    gtk_widget_get_screen (GTK_WIDGET (view)), +					    timestamp, +					    &error); + +			if (error) { +				g_warning ("%s", error->message); +				g_error_free (error); +			} +		} +	} +} + +static void +ev_view_create_annotation (EvView          *view, +			   EvAnnotationType annot_type, +			   gint             x, +			   gint             y) +{ +	EvAnnotation   *annot; +	GdkPoint        point; +	GdkRectangle    page_area; +	GtkBorder       border; +	EvRectangle     doc_rect, popup_rect; +	EvPage         *page; +	GdkColor        color = { 0, 65535, 65535, 0 }; +	GdkRectangle    view_rect; +	cairo_region_t *region; + +	point.x = x; +	point.y = y; +	ev_view_get_page_extents (view, view->current_page, &page_area, &border); +	view_point_to_doc_point (view, &point, &page_area, +				 &doc_rect.x1, &doc_rect.y1); +	doc_rect.x2 = doc_rect.x1 + 24; +	doc_rect.y2 = doc_rect.y1 + 24; + +	ev_document_doc_mutex_lock (); +	page = ev_document_get_page (view->document, view->current_page); +	switch (annot_type) { +	case EV_ANNOTATION_TYPE_TEXT: +		annot = ev_annotation_text_new (page); +		break; +	case EV_ANNOTATION_TYPE_ATTACHMENT: +		/* TODO */ +		g_object_unref (page); +		ev_document_doc_mutex_unlock (); +		return; +	default: +		g_assert_not_reached (); +	} +	g_object_unref (page); + +	ev_annotation_set_color (annot, &color); + +	if (EV_IS_ANNOTATION_MARKUP (annot)) { +		popup_rect.x1 = doc_rect.x2; +		popup_rect.x2 = popup_rect.x1 + 200; +		popup_rect.y1 = doc_rect.y2; +		popup_rect.y2 = popup_rect.y1 + 150; +		g_object_set (annot, +			      "rectangle", &popup_rect, +			      "has_popup", TRUE, +			      "popup_is_open", FALSE, +			      "label", g_get_real_name (), +			      "opacity", 1.0, +			      NULL); +	} +	ev_document_annotations_add_annotation (EV_DOCUMENT_ANNOTATIONS (view->document), +						annot, &doc_rect); +	ev_document_doc_mutex_unlock (); + +	/* If the page didn't have annots, mark the cache as dirty */ +	if (!ev_page_cache_get_annot_mapping (view->page_cache, view->current_page)) +		ev_page_cache_mark_dirty (view->page_cache, view->current_page); + +	if (EV_IS_ANNOTATION_MARKUP (annot)) { +		GtkWindow *parent; +		GtkWidget *window; + +		parent = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (view))); +		window = ev_view_create_annotation_window (view, annot, parent); + +		/* Show the annot window the first time */ +		ev_view_annotation_show_popup_window (view, window); +	} + +	doc_rect_to_view_rect (view, view->current_page, &doc_rect, &view_rect); +	view_rect.x -= view->scroll_x; +	view_rect.y -= view->scroll_y; +	region = cairo_region_create_rectangle (&view_rect); +	ev_view_reload_page (view, view->current_page, region); +	cairo_region_destroy (region); + +	g_signal_emit (view, signals[SIGNAL_ANNOT_ADDED], 0, annot); +} + +void +ev_view_focus_annotation (EvView    *view, +			  EvMapping *annot_mapping) +{ +	GdkRectangle  view_rect; +	EvAnnotation *annot; +	guint         page; + +	if (!EV_IS_DOCUMENT_ANNOTATIONS (view->document)) +		return; + +	if (view->focus_annotation == annot_mapping) +		return; + +	view->focus_annotation = annot_mapping; +	annot = (EvAnnotation *)annot_mapping->data; + +	page = ev_annotation_get_page_index (annot); +	ev_document_model_set_page (view->model, page); + +	doc_rect_to_view_rect (view, page, +			       &annot_mapping->area, &view_rect); +	ensure_rectangle_is_visible (view, &view_rect); +	gtk_widget_queue_draw (GTK_WIDGET (view)); +} + +void +ev_view_begin_add_annotation (EvView          *view, +			      EvAnnotationType annot_type) +{ +	if (annot_type == EV_ANNOTATION_TYPE_UNKNOWN) +		return; + +	if (view->adding_annot) +		return; + +	view->adding_annot = TRUE; +	view->adding_annot_type = annot_type; +	ev_view_set_cursor (view, EV_VIEW_CURSOR_ADD); +} + +void +ev_view_cancel_add_annotation (EvView *view) +{ +	gint x, y; + +	if (!view->adding_annot) +		return; + +	view->adding_annot = FALSE; +	gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y); +	ev_view_handle_cursor_over_xy (view, x, y); +} + +static gboolean +ev_view_synctex_backward_search (EvView *view, +				 gdouble x, +				 gdouble y) +{ +	gint page = -1; +	gint x_new = 0, y_new = 0; +	EvSourceLink *link; + +	if (!ev_document_has_synctex (view->document)) +		return FALSE; + +	if (!get_doc_point_from_location (view, x, y, &page, &x_new, &y_new)) +		return FALSE; + +	link = ev_document_synctex_backward_search (view->document, page, x_new, y_new); +	if (link) { +		g_signal_emit (view, signals[SIGNAL_SYNC_SOURCE], 0, link); +		g_free (link); + +		return TRUE; +	} + +	return FALSE; +} + +/*** GtkWidget implementation ***/ + +static void +ev_view_size_request_continuous_dual_page (EvView         *view, +			     	           GtkRequisition *requisition) +{ +	gint n_pages; + +	n_pages = ev_document_get_n_pages (view->document) + 1; +	get_page_y_offset (view, n_pages, &requisition->height); + +	switch (view->sizing_mode) { +	        case EV_SIZING_FIT_WIDTH: +	        case EV_SIZING_BEST_FIT: +			requisition->width = 1; + +			break; +	        case EV_SIZING_FREE: { +			gint max_width; +			GtkBorder border; + +			ev_view_get_max_page_size (view, &max_width, NULL); +			compute_border (view, max_width, max_width, &border); +			requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3); +		} +			break; +	        default: +			g_assert_not_reached (); +	} +} + +static void +ev_view_size_request_continuous (EvView         *view, +				 GtkRequisition *requisition) +{ +	gint n_pages; + +	n_pages = ev_document_get_n_pages (view->document); +	get_page_y_offset (view, n_pages, &requisition->height); + +	switch (view->sizing_mode) { +	        case EV_SIZING_FIT_WIDTH: +	        case EV_SIZING_BEST_FIT: +			requisition->width = 1; + +			break; +	        case EV_SIZING_FREE: { +			gint max_width; +			GtkBorder border; + +			ev_view_get_max_page_size (view, &max_width, NULL); +			compute_border (view, max_width, max_width, &border); +			requisition->width = max_width + (view->spacing * 2) + border.left + border.right; +		} +			break; +	        default: +			g_assert_not_reached (); +	} +} + +static void +ev_view_size_request_dual_page (EvView         *view, +				GtkRequisition *requisition) +{ +	GtkBorder border; +	gint width, height; + +	if (view->sizing_mode == EV_SIZING_BEST_FIT) { +		requisition->width = 1; +		requisition->height = 1; + +		return; +	} + +	/* Find the largest of the two. */ +	ev_view_get_page_size (view, +			       view->current_page, +			       &width, &height); +	if (view->current_page + 1 < ev_document_get_n_pages (view->document)) { +		gint width_2, height_2; +		ev_view_get_page_size (view, +				       view->current_page + 1, +				       &width_2, &height_2); +		if (width_2 > width) { +			width = width_2; +			height = height_2; +		} +	} +	compute_border (view, width, height, &border); + +	requisition->width = view->sizing_mode == EV_SIZING_FIT_WIDTH ? 1 : +		((width + border.left + border.right) * 2) + (view->spacing * 3); +	requisition->height = (height + border.top + border.bottom) + (view->spacing * 2); +} + +static void +ev_view_size_request_single_page (EvView         *view, +				  GtkRequisition *requisition) +{ +	GtkBorder border; +	gint width, height; + +	if (view->sizing_mode == EV_SIZING_BEST_FIT) { +		requisition->width = 1; +		requisition->height = 1; + +		return; +	} + +	ev_view_get_page_size (view, view->current_page, &width, &height); +	compute_border (view, width, height, &border); + +	requisition->width = view->sizing_mode == EV_SIZING_FIT_WIDTH ? 1 : +		width + border.left + border.right + (2 * view->spacing); +	requisition->height = height + border.top + border.bottom + (2 * view->spacing); +} + +static void +ev_view_size_request (GtkWidget      *widget, +		      GtkRequisition *requisition) +{ +	EvView *view = EV_VIEW (widget); + +	if (view->document == NULL) { +		view->requisition.width = 1; +		view->requisition.height = 1; + +		*requisition = view->requisition; + +		return; +	} + +	/* Get zoom for size here when not called from +	 * ev_view_size_allocate() +	 */ +	if (!view->internal_size_request && +	    (view->sizing_mode == EV_SIZING_FIT_WIDTH || +	     view->sizing_mode == EV_SIZING_BEST_FIT)) { +		GtkAllocation allocation; + +		gtk_widget_get_allocation (widget, &allocation); +		ev_view_zoom_for_size (view, +				       allocation.width, +				       allocation.height); +	} + +	if (view->continuous && view->dual_page) +		ev_view_size_request_continuous_dual_page (view, &view->requisition); +	else if (view->continuous) +		ev_view_size_request_continuous (view, &view->requisition); +	else if (view->dual_page) +		ev_view_size_request_dual_page (view, &view->requisition); +	else +		ev_view_size_request_single_page (view, &view->requisition); + +	*requisition = view->requisition; +} + +static void +ev_view_size_allocate (GtkWidget      *widget, +		       GtkAllocation  *allocation) +{ +	EvView *view = EV_VIEW (widget); +	GList  *children, *l; +	gint    root_x, root_y; + +	GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation); + +	if (!view->document) +		return; + +	if (view->sizing_mode == EV_SIZING_FIT_WIDTH || +	    view->sizing_mode == EV_SIZING_BEST_FIT) { +		GtkRequisition req; + +		ev_view_zoom_for_size (view, +				       allocation->width, +				       allocation->height); +		view->internal_size_request = TRUE; +		ev_view_size_request (widget, &req); +		view->internal_size_request = FALSE; +	} +	 +	view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL); +	view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL); + +	if (view->document) +		view_update_range_and_current_page (view); + +	view->pending_scroll = SCROLL_TO_KEEP_POSITION; +	view->pending_resize = FALSE; +	view->pending_point.x = 0; +	view->pending_point.y = 0; + +	children = gtk_container_get_children (GTK_CONTAINER (widget)); +	for (l = children; l && l->data; l = g_list_next (l)) { +		EvFormField   *field; +		GdkRectangle   view_area; +		EvMappingList *form_field_mapping; +		GtkAllocation  child_allocation; +		GtkRequisition child_requisition; +		GtkWidget     *child = (GtkWidget *)l->data; +		 +		field = g_object_get_data (G_OBJECT (child), "form-field"); +		if (!field) +			continue; + +		form_field_mapping = ev_page_cache_get_form_field_mapping (view->page_cache, +									   field->page->index); +		ev_view_get_area_from_mapping (view, field->page->index, +					       form_field_mapping, +					       field, &view_area); + +		gtk_widget_size_request (child, &child_requisition); +		if (child_requisition.width != view_area.width || +		    child_requisition.height != view_area.height) +			gtk_widget_set_size_request (child, view_area.width, view_area.height); + +		gtk_container_child_get (GTK_CONTAINER (widget), +					 child, +					 "x", &child_allocation.x, +					 "y", &child_allocation.y, +					 NULL); +		if (child_allocation.x != view_area.x || +		    child_allocation.y != view_area.y) { +			gtk_layout_move (GTK_LAYOUT (widget), child, view_area.x, view_area.y); +		} +	} +	g_list_free (children); + +	if (view->window_children) +		gdk_window_get_origin (gtk_widget_get_window (GTK_WIDGET (view)), +				       &root_x, &root_y); + +	for (l = view->window_children; l && l->data; l = g_list_next (l)) { +		EvViewWindowChild *child; +		EvRectangle        doc_rect; +		GdkRectangle       view_rect; + +		child = (EvViewWindowChild *)l->data; + +		ev_annotation_window_get_rectangle (EV_ANNOTATION_WINDOW (child->window), &doc_rect); +		if (child->moved) { +			doc_rect.x1 = child->orig_x; +			doc_rect.y1 = child->orig_y; +		} +		doc_rect_to_view_rect (view, child->page, &doc_rect, &view_rect); +		view_rect.x -= view->scroll_x; +		view_rect.y -= view->scroll_y; + +		if (view_rect.x != child->orig_x || view_rect.y != child->orig_y) { +			child->parent_x = root_x; +			child->parent_y = root_y; +			ev_view_window_child_move (view, child, view_rect.x + root_x, view_rect.y + root_y); +		} +	} +} + +static void +ev_view_realize (GtkWidget *widget) +{ +	EvView    *view = EV_VIEW (widget); +	GdkWindow *bin_window; +	GtkStyle  *style; + +	if (GTK_WIDGET_CLASS (ev_view_parent_class)->realize) +		(* GTK_WIDGET_CLASS (ev_view_parent_class)->realize) (widget); + +	bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); +	gdk_window_set_events (bin_window, +			       (gdk_window_get_events (bin_window) | +				GDK_EXPOSURE_MASK | +				GDK_BUTTON_PRESS_MASK | +				GDK_BUTTON_RELEASE_MASK | +				GDK_SCROLL_MASK | +				GDK_KEY_PRESS_MASK | +				GDK_POINTER_MOTION_MASK | +				GDK_POINTER_MOTION_HINT_MASK | +				GDK_ENTER_NOTIFY_MASK | +				GDK_LEAVE_NOTIFY_MASK)); + +	style = gtk_widget_get_style (widget); +	gdk_window_set_background (bin_window, &style->mid[GTK_STATE_NORMAL]); + +	on_adjustment_value_changed (NULL, view); +} + +static gboolean +ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event) +{ +	EvView *view = EV_VIEW (widget); +	guint state; + +	state = event->state & gtk_accelerator_get_default_mod_mask (); + +	if (state == GDK_CONTROL_MASK) { +		ev_document_model_set_sizing_mode (view->model, EV_SIZING_FREE); +		if (event->direction == GDK_SCROLL_UP || +		    event->direction == GDK_SCROLL_LEFT) { +			if (ev_view_can_zoom_in (view)) { +				ev_view_zoom_in (view); +			} +		} else { +			if (ev_view_can_zoom_out (view)) { +				ev_view_zoom_out (view); +			} +		} + +		return TRUE; +	} + +	view->jump_to_find_result = FALSE; + +	/* Shift+Wheel scrolls the in the perpendicular direction */ +	if (state & GDK_SHIFT_MASK) { +		if (event->direction == GDK_SCROLL_UP) +			event->direction = GDK_SCROLL_LEFT; +		else if (event->direction == GDK_SCROLL_LEFT) +			event->direction = GDK_SCROLL_UP; +		else if (event->direction == GDK_SCROLL_DOWN) +			event->direction = GDK_SCROLL_RIGHT; +		else if (event->direction == GDK_SCROLL_RIGHT) +			event->direction = GDK_SCROLL_DOWN; + +		event->state &= ~GDK_SHIFT_MASK; +		state &= ~GDK_SHIFT_MASK; +	} + +	if (state == 0 && view->sizing_mode == EV_SIZING_BEST_FIT && !view->continuous) { +		switch (event->direction) { +		        case GDK_SCROLL_DOWN: +		        case GDK_SCROLL_RIGHT: +				ev_view_next_page (view);	 +				break; +		        case GDK_SCROLL_UP: +		        case GDK_SCROLL_LEFT: +				ev_view_previous_page (view); +				break; +		} + +		return TRUE; +	} + +	return FALSE; +} + +static EvViewSelection * +find_selection_for_page (EvView *view, +			 gint    page) +{ +	GList *list; + +	for (list = view->selection_info.selections; list != NULL; list = list->next) { +		EvViewSelection *selection; + +		selection = (EvViewSelection *) list->data; + +		if (selection->page == page) +			return selection; +	} + +	return NULL; +} + +static gboolean +ev_view_expose_event (GtkWidget      *widget, +		      GdkEventExpose *event) +{ +	EvView    *view = EV_VIEW (widget); +	GdkWindow *bin_window; +	cairo_t   *cr; +	gint       i; + +	if (view->loading) { +		show_loading_window (view); +	} else if (view->loading_window && +		   gtk_widget_get_visible (view->loading_window)) { +		ev_view_loading_window_move (view); +	} + +	if (view->document == NULL) +		return FALSE; + +	bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); +	cr = gdk_cairo_create (bin_window); + +	for (i = view->start_page; i >= 0 && i <= view->end_page; i++) { +		GdkRectangle page_area; +		GtkBorder border; +		gboolean page_ready = TRUE; + +		if (!ev_view_get_page_extents (view, i, &page_area, &border)) +			continue; + +		page_area.x -= view->scroll_x; +		page_area.y -= view->scroll_y; + +		draw_one_page (view, i, cr, &page_area, &border, &(event->area), &page_ready); + +		if (page_ready && view->find_pages && view->highlight_find_results) +			highlight_find_results (view, i); +		if (page_ready && EV_IS_DOCUMENT_ANNOTATIONS (view->document)) +			show_annotation_windows (view, i); +		if (page_ready && view->focus_annotation) +			focus_annotation (view, i, &event->area); +		if (page_ready && view->synctex_result) +			highlight_forward_search_results (view, i); +	} + +	cairo_destroy (cr); + +	if (GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event) +		(* GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event) (widget, event); + +	return FALSE; +} + +static gboolean +ev_view_do_popup_menu (EvView *view, +		       gdouble x, +		       gdouble y) +{ +	GList        *items = NULL; +	EvLink       *link; +	EvImage      *image; +	EvAnnotation *annot; + +	image = ev_view_get_image_at_location (view, x, y); +	if (image) +		items = g_list_prepend (items, image); + +	link = ev_view_get_link_at_location (view, x, y); +	if (link) +		items = g_list_prepend (items, link); + +	annot = ev_view_get_annotation_at_location (view, x, y); +	if (annot) +		items = g_list_prepend (items, annot); + +	g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, items); + +	g_list_free (items); + +	return TRUE; +} + +static gboolean +ev_view_popup_menu (GtkWidget *widget) +{ +	gint x, y; +	 +	gtk_widget_get_pointer (widget, &x, &y); +	return ev_view_do_popup_menu (EV_VIEW (widget), x, y); +} + +static void +get_link_area (EvView       *view, +	       gint          x, +	       gint          y, +	       EvLink       *link, +	       GdkRectangle *area) +{ +	EvMappingList *link_mapping; +	gint           page; +	gint           x_offset = 0, y_offset = 0; + +	x += view->scroll_x; +	y += view->scroll_y; +	 +	find_page_at_location (view, x, y, &page, &x_offset, &y_offset); +	 +	link_mapping = ev_page_cache_get_link_mapping (view->page_cache, page); +	ev_view_get_area_from_mapping (view, page, +				       link_mapping, +				       link, area); +} + +static void +get_annot_area (EvView       *view, +	       gint          x, +	       gint          y, +	       EvAnnotation *annot, +	       GdkRectangle *area) +{ +	EvMappingList *annot_mapping; +	gint           page; +	gint           x_offset = 0, y_offset = 0; + +	x += view->scroll_x; +	y += view->scroll_y; + +	find_page_at_location (view, x, y, &page, &x_offset, &y_offset); + +	annot_mapping = ev_page_cache_get_annot_mapping (view->page_cache, page); +	ev_view_get_area_from_mapping (view, page, +				       annot_mapping, +				       annot, area); +} + +static gboolean +ev_view_query_tooltip (GtkWidget  *widget, +		       gint        x, +		       gint        y, +		       gboolean    keyboard_tip, +		       GtkTooltip *tooltip) +{ +	EvView       *view = EV_VIEW (widget); +	EvLink       *link; +	EvAnnotation *annot; +	gchar        *text; + +	annot = ev_view_get_annotation_at_location (view, x, y); +	if (annot) { +		const gchar *contents; + +		if ((contents = ev_annotation_get_contents (annot))) { +			GdkRectangle annot_area; + +			get_annot_area (view, x, y, annot, &annot_area); +			gtk_tooltip_set_text (tooltip, contents); +			gtk_tooltip_set_tip_area (tooltip, &annot_area); + +			return TRUE; +		} +	} + +	link = ev_view_get_link_at_location (view, x, y); +	if (!link) +		return FALSE; + +	text = tip_from_link (view, link); +	if (text && g_utf8_validate (text, -1, NULL)) { +		GdkRectangle link_area; + +		get_link_area (view, x, y, link, &link_area); +		gtk_tooltip_set_text (tooltip, text); +		gtk_tooltip_set_tip_area (tooltip, &link_area); +	} +	g_free (text); + +	return TRUE; +} + +static void +start_selection_for_event (EvView         *view, +			   GdkEventButton *event) +{ +	clear_selection (view); + +	view->selection_info.start.x = event->x + view->scroll_x; +	view->selection_info.start.y = event->y + view->scroll_y; + +	switch (event->type) { +	        case GDK_2BUTTON_PRESS: +			view->selection_info.style = EV_SELECTION_STYLE_WORD; +			break; +	        case GDK_3BUTTON_PRESS: +			view->selection_info.style = EV_SELECTION_STYLE_LINE; +			break; +	        default: +			view->selection_info.style = EV_SELECTION_STYLE_GLYPH; +			return; +	} + +	/* In case of WORD or LINE, compute selections now */ +	compute_selections (view, +			    view->selection_info.style, +			    &(view->selection_info.start), +			    &(view->selection_info.start)); +} + +static gboolean +ev_view_button_press_event (GtkWidget      *widget, +			    GdkEventButton *event) +{ +	EvView *view = EV_VIEW (widget); + +	if (!view->document) +		return FALSE; +	 +	if (!gtk_widget_has_focus (widget)) { +		gtk_widget_grab_focus (widget); +	} + +	if (view->window_child_focus) { +		EvAnnotationWindow *window; +		EvAnnotation       *annot; + +		window = EV_ANNOTATION_WINDOW (view->window_child_focus->window); +		annot = ev_annotation_window_get_annotation (window); +		ev_annotation_window_ungrab_focus (window); +		view->window_child_focus = NULL; +	} +	 +	view->pressed_button = event->button; +	view->selection_info.in_drag = FALSE; + +	if (view->adding_annot) +		return FALSE; + +	if (view->scroll_info.autoscrolling) +		return TRUE; +	 +	switch (event->button) { +	        case 1: { +			EvImage *image; +			EvAnnotation *annot; +			EvFormField *field; + +			if (event->state & GDK_CONTROL_MASK) +				return ev_view_synctex_backward_search (view, event->x , event->y); + +			if (EV_IS_SELECTION (view->document) && view->selection_info.selections) { +				if (event->type == GDK_3BUTTON_PRESS) { +					start_selection_for_event (view, event); +				} else if (location_in_selected_text (view, +							       event->x + view->scroll_x, +							       event->y + view->scroll_y)) { +					view->selection_info.in_drag = TRUE; +				} else { +					start_selection_for_event (view, event); +				} + +				gtk_widget_queue_draw (widget); +			} else if ((annot = ev_view_get_annotation_at_location (view, event->x, event->y))) { +				ev_view_handle_annotation (view, annot, event->x, event->y, event->time); +			} else if ((field = ev_view_get_form_field_at_location (view, event->x, event->y))) { +				ev_view_remove_all (view); +				ev_view_handle_form_field (view, field, event->x, event->y); +			} else if (!location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y) && +				   (image = ev_view_get_image_at_location (view, event->x, event->y))) { +				if (view->image_dnd_info.image) +					g_object_unref (view->image_dnd_info.image); +				view->image_dnd_info.image = g_object_ref (image); +				view->image_dnd_info.in_drag = TRUE; + +				view->image_dnd_info.start.x = event->x + view->scroll_x; +				view->image_dnd_info.start.y = event->y + view->scroll_y; +			} else { +				ev_view_remove_all (view); + +				if (view->synctex_result) { +					g_free (view->synctex_result); +					view->synctex_result = NULL; +					gtk_widget_queue_draw (widget); +				} + +				if (view->focus_annotation) +					view->focus_annotation = NULL; + +				if (EV_IS_SELECTION (view->document)) +					start_selection_for_event (view, event); +			} +		}			 +			return TRUE; +		case 2: +			/* use root coordinates as reference point because +			 * scrolling changes window relative coordinates */ +			view->drag_info.start.x = event->x_root; +			view->drag_info.start.y = event->y_root; +			view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment); +			view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment); + +			ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG); + +			return TRUE; +		case 3: +			view->scroll_info.start_y = event->y; +			return ev_view_do_popup_menu (view, event->x, event->y); +	} +	 +	return FALSE; +} + +static void +ev_view_remove_all (EvView *view) +{ +	GList *children, *child; + +	children = gtk_container_get_children (GTK_CONTAINER (view)); +	for (child = children; child && child->data; child = g_list_next (child)) { +		gtk_container_remove (GTK_CONTAINER (view), +				      GTK_WIDGET (child->data)); +	} +	g_list_free (children); +} + +/*** Drag and Drop ***/ +static void +ev_view_drag_data_get (GtkWidget        *widget, +		       GdkDragContext   *context, +		       GtkSelectionData *selection_data, +		       guint             info, +		       guint             time) +{ +	EvView *view = EV_VIEW (widget); + +	switch (info) { +	        case TARGET_DND_TEXT: +			if (EV_IS_SELECTION (view->document) && +			    view->selection_info.selections) { +				gchar *text; + +				text = get_selected_text (view); +				gtk_selection_data_set_text (selection_data, +							     text, +							     strlen (text)); +				g_free (text); +			} +			break; +	        case TARGET_DND_IMAGE: +			if (view->image_dnd_info.image) { +				GdkPixbuf *pixbuf; + +				ev_document_doc_mutex_lock (); +				pixbuf = ev_document_images_get_image (EV_DOCUMENT_IMAGES (view->document), +								       view->image_dnd_info.image); +				ev_document_doc_mutex_unlock (); +				 +				gtk_selection_data_set_pixbuf (selection_data, pixbuf); +				g_object_unref (pixbuf); +			} +			break; +	        case TARGET_DND_URI: +			if (view->image_dnd_info.image) { +				GdkPixbuf   *pixbuf; +				const gchar *tmp_uri; +				gchar       *uris[2]; + +				ev_document_doc_mutex_lock (); +				pixbuf = ev_document_images_get_image (EV_DOCUMENT_IMAGES (view->document), +								       view->image_dnd_info.image); +				ev_document_doc_mutex_unlock (); +				 +				tmp_uri = ev_image_save_tmp (view->image_dnd_info.image, pixbuf); +				g_object_unref (pixbuf); + +				uris[0] = (gchar *)tmp_uri; +                                uris[1] = NULL; +				gtk_selection_data_set_uris (selection_data, uris); +			} +	} +} + +static gboolean +ev_view_drag_motion (GtkWidget      *widget, +		     GdkDragContext *context, +		     gint            x, +		     gint            y, +		     guint           time) +{ +	if (gtk_drag_get_source_widget (context) == widget) +		gdk_drag_status (context, 0, time); +	else +		gdk_drag_status (context, gdk_drag_context_get_suggested_action (context), time); +	 +	return TRUE; +} +		      +static gboolean +selection_update_idle_cb (EvView *view) +{ +	compute_selections (view, +			    view->selection_info.style, +			    &view->selection_info.start, +			    &view->motion); +	view->selection_update_id = 0; +	return FALSE; +} + +static gboolean +selection_scroll_timeout_cb (EvView *view) +{	 +	gint x, y, shift = 0; +	GtkWidget *widget = GTK_WIDGET (view); +	GtkAllocation allocation; + +	gtk_widget_get_allocation (widget, &allocation); +	gtk_widget_get_pointer (widget, &x, &y); + +	if (y > allocation.height) { +		shift = (y - allocation.height) / 2; +	} else if (y < 0) { +		shift = y / 2; +	} + +	if (shift) +		gtk_adjustment_set_value (view->vadjustment, +					  CLAMP (gtk_adjustment_get_value (view->vadjustment) + shift, +						 gtk_adjustment_get_lower (view->vadjustment), +						 gtk_adjustment_get_upper (view->vadjustment) - +						 gtk_adjustment_get_page_size (view->vadjustment))); + +	if (x > allocation.width) { +		shift = (x - allocation.width) / 2; +	} else if (x < 0) { +		shift = x / 2; +	} + +	if (shift) +		gtk_adjustment_set_value (view->hadjustment, +					  CLAMP (gtk_adjustment_get_value (view->hadjustment) + shift, +						 gtk_adjustment_get_lower (view->hadjustment), +						 gtk_adjustment_get_upper (view->hadjustment) - +						 gtk_adjustment_get_page_size (view->hadjustment))); + +	return TRUE; +} + +static gboolean +ev_view_drag_update_momentum (EvView *view) +{ +	int i; +	if (!view->drag_info.in_drag) +		return FALSE; +	 +	for (i = DRAG_HISTORY - 1; i > 0; i--) { +		view->drag_info.buffer[i].x = view->drag_info.buffer[i-1].x; +		view->drag_info.buffer[i].y = view->drag_info.buffer[i-1].y; +	} + +	/* Momentum is a moving average of 10ms granularity over +	 * the last 100ms with each 10ms stored in buffer.  +	 */ +	 +	view->drag_info.momentum.x = (view->drag_info.buffer[DRAG_HISTORY - 1].x - view->drag_info.buffer[0].x); +	view->drag_info.momentum.y = (view->drag_info.buffer[DRAG_HISTORY - 1].y - view->drag_info.buffer[0].y); + +	return TRUE; +} + +static gboolean +ev_view_scroll_drag_release (EvView *view) +{ +	gdouble dhadj_value, dvadj_value; +	gdouble oldhadjustment, oldvadjustment; +	gdouble h_page_size, v_page_size; +	gdouble h_upper, v_upper; +	GtkAllocation allocation; + +	view->drag_info.momentum.x /= 1.2; +	view->drag_info.momentum.y /= 1.2; /* Alter these constants to change "friction" */ + +	gtk_widget_get_allocation (GTK_WIDGET (view), &allocation); + +	h_page_size = gtk_adjustment_get_page_size (view->hadjustment); +	v_page_size = gtk_adjustment_get_page_size (view->vadjustment); + +	dhadj_value = h_page_size * +		      (gdouble)view->drag_info.momentum.x / allocation.width; +	dvadj_value = v_page_size * +		      (gdouble)view->drag_info.momentum.y / allocation.height; + +	oldhadjustment = gtk_adjustment_get_value (view->hadjustment); +	oldvadjustment = gtk_adjustment_get_value (view->vadjustment); + +	h_upper = gtk_adjustment_get_upper (view->hadjustment); +	v_upper = gtk_adjustment_get_upper (view->vadjustment); + +	/* When we reach the edges, we need either to absorb some momentum and bounce by +	 * multiplying it on -0.5 or stop scrolling by setting momentum to 0. */ +	if (((oldhadjustment + dhadj_value) > (h_upper - h_page_size)) || +	    ((oldhadjustment + dhadj_value) < 0)) +		view->drag_info.momentum.x = 0; +	if (((oldvadjustment + dvadj_value) > (v_upper - v_page_size)) || +	    ((oldvadjustment + dvadj_value) < 0)) +		view->drag_info.momentum.y = 0; + +	gtk_adjustment_set_value (view->hadjustment, +				  MIN (oldhadjustment + dhadj_value, +				       h_upper - h_page_size)); +	gtk_adjustment_set_value (view->vadjustment, +				  MIN (oldvadjustment + dvadj_value, +				       v_upper - v_page_size)); + +	if (((view->drag_info.momentum.x < 1) && (view->drag_info.momentum.x > -1)) && +	    ((view->drag_info.momentum.y < 1) && (view->drag_info.momentum.y > -1))) +		return FALSE; +	else +		return TRUE; +} + +static gboolean +ev_view_motion_notify_event (GtkWidget      *widget, +			     GdkEventMotion *event) +{ +	EvView    *view = EV_VIEW (widget); +	GdkWindow *bin_window; +	gint       x, y; + +	if (!view->document) +		return FALSE; + +	bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); + +        if (event->is_hint || event->window != bin_window) { +	    gtk_widget_get_pointer (widget, &x, &y); +        } else { +	    x = event->x; +	    y = event->y; +	} + +	if (view->scroll_info.autoscrolling) { +		view->scroll_info.last_y = y; +		return TRUE; +	} + +	if (view->selection_info.in_drag) { +		if (gtk_drag_check_threshold (widget, +					      view->selection_info.start.x, +					      view->selection_info.start.y, +					      x, y)) { +			GtkTargetList *target_list = gtk_target_list_new (NULL, 0); + +			gtk_target_list_add_text_targets (target_list, TARGET_DND_TEXT); + +			gtk_drag_begin (widget, target_list, +					GDK_ACTION_COPY, +					1, (GdkEvent *)event); + +			view->selection_info.in_drag = FALSE; + +			gtk_target_list_unref (target_list); + +			return TRUE; +		} +	} else if (view->image_dnd_info.in_drag) { +		if (gtk_drag_check_threshold (widget, +					      view->selection_info.start.x, +					      view->selection_info.start.y, +					      x, y)) { +			GtkTargetList *target_list = gtk_target_list_new (NULL, 0); + +			gtk_target_list_add_uri_targets (target_list, TARGET_DND_URI); +			gtk_target_list_add_image_targets (target_list, TARGET_DND_IMAGE, TRUE); + +			gtk_drag_begin (widget, target_list, +					GDK_ACTION_COPY, +					1, (GdkEvent *)event); + +			view->image_dnd_info.in_drag = FALSE; + +			gtk_target_list_unref (target_list); + +			return TRUE; +		} +	} +	 +	switch (view->pressed_button) { +	case 1: +		/* For the Evince 0.4.x release, we limit selection to un-rotated +		 * documents only. +		 */ +		if (view->rotation != 0) +			return FALSE; + +		/* Schedule timeout to scroll during selection and additionally  +		 * scroll once to allow arbitrary speed. */ +		if (!view->selection_scroll_id) +		    view->selection_scroll_id = g_timeout_add (SCROLL_TIME, +							       (GSourceFunc)selection_scroll_timeout_cb, +							       view); +		else  +		    selection_scroll_timeout_cb (view); + +		view->selection_info.in_selection = TRUE; +		view->motion.x = x + view->scroll_x; +		view->motion.y = y + view->scroll_y; + +		/* Queue an idle to handle the motion.  We do this because	 +		 * handling any selection events in the motion could be slower	 +		 * than new motion events reach us.  We always put it in the	 +		 * idle to make sure we catch up and don't visibly lag the	 +		 * mouse. */ +		if (!view->selection_update_id) +			view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view); + +		return TRUE; +	case 2: +		if (!view->drag_info.in_drag) { +			gboolean start; +			int i; + +			start = gtk_drag_check_threshold (widget, +							  view->drag_info.start.x, +							  view->drag_info.start.y, +							  event->x_root, +							  event->y_root); +			view->drag_info.in_drag = start; +			view->drag_info.drag_timeout_id = g_timeout_add (10, +				(GSourceFunc)ev_view_drag_update_momentum, view); +			/* Set 100 to choose how long it takes to build up momentum */ +			/* Clear out previous momentum info: */ +			for (i = 0; i < DRAG_HISTORY; i++) { +				view->drag_info.buffer[i].x = event->x; +				view->drag_info.buffer[i].y = event->y; +			} +			view->drag_info.momentum.x = 0; +			view->drag_info.momentum.y = 0; +		} + +		if (view->drag_info.in_drag) { +			int dx, dy; +			gdouble dhadj_value, dvadj_value; +			GtkAllocation allocation; + +			view->drag_info.buffer[0].x = event->x; +			view->drag_info.buffer[0].y = event->y; + +			dx = event->x_root - view->drag_info.start.x; +			dy = event->y_root - view->drag_info.start.y; + +			gtk_widget_get_allocation (widget, &allocation); + +			dhadj_value = gtk_adjustment_get_page_size (view->hadjustment) * +				      (gdouble)dx / allocation.width; +			dvadj_value = gtk_adjustment_get_page_size (view->vadjustment) * +				      (gdouble)dy / allocation.height; + +			/* clamp scrolling to visible area */ +			gtk_adjustment_set_value (view->hadjustment, +						  MIN (view->drag_info.hadj - dhadj_value, +						       gtk_adjustment_get_upper (view->hadjustment) - +						       gtk_adjustment_get_page_size (view->hadjustment))); +			gtk_adjustment_set_value (view->vadjustment, +						  MIN (view->drag_info.vadj - dvadj_value, +						       gtk_adjustment_get_upper (view->vadjustment) - +						       gtk_adjustment_get_page_size (view->vadjustment))); + +			return TRUE; +		} + +		break; +	default: +		ev_view_handle_cursor_over_xy (view, x, y); +	}  + +	return FALSE; +} + +static gboolean +ev_view_button_release_event (GtkWidget      *widget, +			      GdkEventButton *event) +{ +	EvView *view = EV_VIEW (widget); +	EvLink *link = NULL; + +	view->image_dnd_info.in_drag = FALSE; + +	if (view->scroll_info.autoscrolling) { +		ev_view_autoscroll_stop (view); +		view->pressed_button = -1; + +		return TRUE; +	} + +	if (view->pressed_button == 1 && event->state & GDK_CONTROL_MASK) { +		view->pressed_button = -1; +		return TRUE; +	} + +	if (view->drag_info.in_drag) { +		view->drag_info.release_timeout_id = +			g_timeout_add (20, +				       (GSourceFunc)ev_view_scroll_drag_release, view); +	} + +	if (view->document && !view->drag_info.in_drag && view->pressed_button != 3) { +		link = ev_view_get_link_at_location (view, event->x, event->y); +	} + +	view->drag_info.in_drag = FALSE; + +	if (view->adding_annot && view->pressed_button == 1) { +		view->adding_annot = FALSE; +		ev_view_handle_cursor_over_xy (view, event->x, event->y); +		view->pressed_button = -1; + +		ev_view_create_annotation (view, +					   view->adding_annot_type, +					   event->x + view->scroll_x, +					   event->y + view->scroll_y); + +		return FALSE; +	} + +	if (view->pressed_button == 2) { +		ev_view_handle_cursor_over_xy (view, event->x, event->y); +	} + +	view->pressed_button = -1; + +	if (view->selection_scroll_id) { +	    g_source_remove (view->selection_scroll_id); +	    view->selection_scroll_id = 0; +	} +	if (view->selection_update_id) { +	    g_source_remove (view->selection_update_id); +	    view->selection_update_id = 0; +	} + +	if (view->selection_info.selections) { +		clear_link_selected (view); +		ev_view_update_primary_selection (view); +		 +		if (view->selection_info.in_drag) { +			clear_selection (view); +			gtk_widget_queue_draw (widget); +		} +		 +		view->selection_info.in_drag = FALSE; +	} else if (link) { +		if (event->button == 2) { +			EvLinkAction    *action; +			EvLinkActionType type; + +			action = ev_link_get_action (link); +			if (!action) +				return FALSE; + +			type = ev_link_action_get_action_type (action); +			if (type == EV_LINK_ACTION_TYPE_GOTO_DEST) { +				g_signal_emit (view, +					       signals[SIGNAL_EXTERNAL_LINK], +					       0, action); +			} +		} else { +			ev_view_handle_link (view, link); +		} +	} + +	return FALSE; +} + +static gboolean +ev_view_key_press_event (GtkWidget   *widget, +			 GdkEventKey *event) +{ +	EvView *view = EV_VIEW (widget); + +	if (!view->document) +		return FALSE; + +	if (!gtk_widget_has_focus (widget)) { +		/* Forward key events to current focused window child */ +		if (view->window_child_focus) { +			GdkEventKey *new_event; +			gboolean     handled; + +			new_event = (GdkEventKey *) gdk_event_copy ((GdkEvent *)event); +			g_object_unref (new_event->window); +			new_event->window = gtk_widget_get_window (view->window_child_focus->window); +			if (new_event->window) +				g_object_ref (new_event->window); +			gtk_widget_realize (view->window_child_focus->window); +			handled = gtk_widget_event (view->window_child_focus->window, (GdkEvent *)new_event); +			gdk_event_free ((GdkEvent *)new_event); + +			return handled; +		} + +		return FALSE; +	} + +	return gtk_bindings_activate_event (GTK_OBJECT (widget), event); +} + +static gint +ev_view_focus_in (GtkWidget     *widget, +		  GdkEventFocus *event) +{ +	if (EV_VIEW (widget)->pixbuf_cache) +		ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache); +	gtk_widget_queue_draw (widget); + +	return FALSE; +} + +static gint +ev_view_focus_out (GtkWidget     *widget, +		   GdkEventFocus *event) +{ +	if (EV_VIEW (widget)->pixbuf_cache) +		ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache); +	gtk_widget_queue_draw (widget); + +	return FALSE; +} + +static gboolean +ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing   *event) +{ +	EvView *view = EV_VIEW (widget); + +	if (view->cursor != EV_VIEW_CURSOR_NORMAL) +		ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); + +	return FALSE; +} + +static gboolean +ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing   *event) +{ +	EvView *view = EV_VIEW (widget); + +	ev_view_handle_cursor_over_xy (view, event->x, event->y); +     +	return FALSE; +} + +static void +ev_view_style_set (GtkWidget *widget, +		   GtkStyle  *old_style) +{ +	if (EV_VIEW (widget)->pixbuf_cache) +		ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache); + +	GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style); +} + +/*** Drawing ***/ + +static void +draw_rubberband (EvView             *view, +		 GdkWindow          *window, +		 const GdkRectangle *rect, +		 gdouble             alpha) +{ +	GtkStyle *style; +	GdkColor *fill_color_gdk; +	gdouble   r, g, b; +	cairo_t  *cr; + +	style = gtk_widget_get_style (GTK_WIDGET (view)); +	fill_color_gdk = gdk_color_copy (&style->base[GTK_STATE_SELECTED]); +	r = fill_color_gdk->red / 65535.; +	g = fill_color_gdk->green / 65535.; +	b = fill_color_gdk->blue / 65535.; + +	cr = gdk_cairo_create (window); + +	cairo_set_source_rgba (cr, r, g, b, alpha); +	cairo_rectangle (cr, +			 rect->x - view->scroll_x, +			 rect->y - view->scroll_y, +			 rect->width, rect->height); +	cairo_fill_preserve (cr); + +	cairo_set_line_width (cr, 0.5); +	cairo_set_source_rgb (cr, r, g, b); +	cairo_stroke (cr); + +	cairo_destroy (cr); + +	gdk_color_free (fill_color_gdk); +} + + +static void +highlight_find_results (EvView *view, int page) +{ +	gint       i, n_results = 0; +	GdkWindow *bin_window; + +	bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); + +	n_results = ev_view_find_get_n_results (view, page); + +	for (i = 0; i < n_results; i++) { +		EvRectangle *rectangle; +		GdkRectangle view_rectangle; +		gdouble      alpha; + +		if (i == view->find_result && page == view->current_page) { +			alpha = 0.6; +		} else { +			alpha = 0.3; +		} + +		rectangle = ev_view_find_get_result (view, page, i); +		doc_rect_to_view_rect (view, page, rectangle, &view_rectangle); +		draw_rubberband (view, bin_window, &view_rectangle, alpha); +        } +} + +static void +highlight_forward_search_results (EvView *view, int page) +{ +	GdkWindow   *bin_window; +	GdkRectangle rect; +	cairo_t     *cr; +	EvMapping   *mapping = view->synctex_result; + +	if (GPOINTER_TO_INT (mapping->data) != page) +		return; + +	bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); +	doc_rect_to_view_rect (view, page, &mapping->area, &rect); + +	cr = gdk_cairo_create (bin_window); +	cairo_set_source_rgb (cr, 1., 0., 0.); +	cairo_rectangle (cr, +			 rect.x - view->scroll_x, +			 rect.y - view->scroll_y, +			 rect.width, rect.height); +	cairo_stroke (cr); +	cairo_destroy (cr); +} + +static void +focus_annotation (EvView       *view, +		  gint          page, +		  GdkRectangle *clip) +{ +	GtkWidget    *widget = GTK_WIDGET (view); +	GdkRectangle  rect; +	EvMapping    *mapping = view->focus_annotation; +	EvAnnotation *annot = (EvAnnotation *)mapping->data; + +	if (ev_annotation_get_page_index (annot) != page) +		return; + +	doc_rect_to_view_rect (view, page, &mapping->area, &rect); +	gtk_paint_focus (gtk_widget_get_style (widget), +			 gtk_layout_get_bin_window (GTK_LAYOUT (view)), +			 gtk_widget_get_state (widget), +			 NULL, widget, NULL, +			 rect.x - view->scroll_x, +			 rect.y - view->scroll_y, +			 rect.width + 1, rect.height + 1); +} + +static void +ev_view_loading_window_move (EvView *view) +{ +	GtkWidget       *widget = GTK_WIDGET (view); +	EvLoadingWindow *window = EV_LOADING_WINDOW (view->loading_window); +	gint             root_x, root_y; +	gint             window_width; +	GtkAllocation    allocation; + +	gtk_widget_get_allocation (widget, &allocation); +	gdk_window_get_origin (gtk_widget_get_window (widget), &root_x, &root_y); +	ev_loading_window_get_size (window, &window_width, NULL); + +	root_x += allocation.width - window_width - 10; +	root_y += 10; + +	ev_loading_window_move (window, root_x, root_y); +} + +static gboolean +show_loading_window_cb (EvView *view) +{ +	if (!view->loading_window) { +		GtkWindow *parent; +		GdkScreen *screen; + +		parent = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (view))); +		view->loading_window = ev_loading_window_new (parent); + +		/* Show the window off screen to get a valid size asap */ +		screen = gtk_widget_get_screen (GTK_WIDGET (view)); +		gtk_window_move (GTK_WINDOW (view->loading_window), +				 gdk_screen_get_width (screen) + 1, +				 gdk_screen_get_height (screen) + 1); +		gtk_widget_show (view->loading_window); +	} + +	ev_view_loading_window_move (view); + +	gtk_widget_show (view->loading_window); + +	view->loading_timeout = 0; + +	return FALSE; +} + +static void +show_loading_window (EvView *view) +{ +	if (view->loading_window && gtk_widget_get_visible (view->loading_window)) { +		ev_view_loading_window_move (view); +		return; +	} + +	if (!view->loading_timeout) { +		view->loading_timeout = +			g_timeout_add_full (G_PRIORITY_LOW, +					    0.5, (GSourceFunc)show_loading_window_cb, +					    view, NULL); +	} +} + +static void +hide_loading_window (EvView *view) +{ +	if (view->loading_timeout) { +		g_source_remove (view->loading_timeout); +		view->loading_timeout = 0; +	} + +	if (view->loading_window && gtk_widget_get_visible (view->loading_window)) { +		gtk_widget_hide (view->loading_window); +	} +} + +static void +draw_one_page (EvView       *view, +	       gint          page, +	       cairo_t      *cr, +	       GdkRectangle *page_area, +	       GtkBorder    *border, +	       GdkRectangle *expose_area, +	       gboolean     *page_ready) +{ +	GdkWindow   *bin_window; +	GdkRectangle overlap; +	GdkRectangle real_page_area; +	gint         current_page; +	gboolean     inverted_colors; + +	g_assert (view->document); + +	if (! gdk_rectangle_intersect (page_area, expose_area, &overlap)) +		return; + +	/* Render the document itself */ +	real_page_area = *page_area; + +	real_page_area.x += border->left; +	real_page_area.y += border->top; +	real_page_area.width -= (border->left + border->right); +	real_page_area.height -= (border->top + border->bottom); +	*page_ready = TRUE; + +	bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); +	current_page = ev_document_model_get_page (view->model); +	inverted_colors = ev_document_model_get_inverted_colors (view->model); +	ev_document_misc_paint_one_page (cr, +					 GTK_WIDGET (view), +					 page_area, border, +					 page == current_page, +					 inverted_colors); + +	if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) { +		gint             width, height; +		gint             page_width, page_height; +		cairo_surface_t *page_surface = NULL; +		gint             selection_width, selection_height; +		cairo_surface_t *selection_surface = NULL; + +		page_surface = ev_pixbuf_cache_get_surface (view->pixbuf_cache, page); + +		if (!page_surface) { +			if (page == current_page) +				show_loading_window (view); + +			*page_ready = FALSE; + +			return; +		} + +		if (page == current_page) +			hide_loading_window (view); + +		ev_view_get_page_size (view, page, &width, &height); + +		page_width = cairo_image_surface_get_width (page_surface); +		page_height = cairo_image_surface_get_height (page_surface); + +		cairo_save (cr); +		cairo_translate (cr, overlap.x, overlap.y); + +		if (width != page_width || height != page_height) { +			cairo_pattern_set_filter (cairo_get_source (cr), +						  CAIRO_FILTER_FAST); +			cairo_scale (cr, +				     (gdouble)width / page_width, +				     (gdouble)height / page_height); +		} + +		cairo_surface_set_device_offset (page_surface, +						 overlap.x - real_page_area.x, +						 overlap.y - real_page_area.y); +		cairo_set_source_surface (cr, page_surface, 0, 0); +		cairo_paint (cr); +		cairo_restore (cr); +		 +		/* Get the selection pixbuf iff we have something to draw */ +		if (find_selection_for_page (view, page) && +		    view->selection_mode == EV_VIEW_SELECTION_TEXT) { +			selection_surface = +				ev_pixbuf_cache_get_selection_surface (view->pixbuf_cache, +								       page, +								       view->scale, +								       NULL); +		} + +		if (!selection_surface) { +			return; +		} + +		selection_width = cairo_image_surface_get_width (selection_surface); +		selection_height = cairo_image_surface_get_height (selection_surface); + +		cairo_save (cr); +		cairo_translate (cr, overlap.x, overlap.y); + +		if (width != selection_width || height != selection_height) { +			cairo_pattern_set_filter (cairo_get_source (cr), +						  CAIRO_FILTER_FAST); +			cairo_scale (cr, +				     (gdouble)width / selection_width, +				     (gdouble)height / selection_height); +		} + +		cairo_surface_set_device_offset (selection_surface, +						 overlap.x - real_page_area.x, +						 overlap.y - real_page_area.y); + +		cairo_set_source_surface (cr, selection_surface, 0, 0); +		cairo_paint (cr); +		cairo_restore (cr); +	} +} + +/*** GObject functions ***/ + +static void +ev_view_finalize (GObject *object) +{ +	EvView *view = EV_VIEW (object); + +	clear_selection (view); +	clear_link_selected (view); + +	if (view->synctex_result) { +		g_free (view->synctex_result); +		view->synctex_result = NULL; +	} + +	if (view->image_dnd_info.image) +		g_object_unref (view->image_dnd_info.image); +	view->image_dnd_info.image = NULL; + +	G_OBJECT_CLASS (ev_view_parent_class)->finalize (object); +} + +static void +ev_view_destroy (GtkObject *object) +{ +	EvView *view = EV_VIEW (object); + +	if (view->model) { +		g_object_unref (view->model); +		view->model = NULL; +	} + +	if (view->pixbuf_cache) { +		g_object_unref (view->pixbuf_cache); +		view->pixbuf_cache = NULL; +	} + +	if (view->document) { +		g_object_unref (view->document); +		view->document = NULL; +	} + +	if (view->page_cache) { +		g_object_unref (view->page_cache); +		view->page_cache = NULL; +	} + +	ev_view_window_children_free (view); + +	if (view->selection_scroll_id) { +	    g_source_remove (view->selection_scroll_id); +	    view->selection_scroll_id = 0; +	} + +	if (view->selection_update_id) { +	    g_source_remove (view->selection_update_id); +	    view->selection_update_id = 0; +	} + +	if (view->scroll_info.timeout_id) { +	    g_source_remove (view->scroll_info.timeout_id); +	    view->scroll_info.timeout_id = 0; +	} + +	if (view->drag_info.drag_timeout_id) { +		g_source_remove (view->drag_info.drag_timeout_id); +		view->drag_info.drag_timeout_id = 0; +	} + +	if (view->drag_info.release_timeout_id) { +		g_source_remove (view->drag_info.release_timeout_id); +		view->drag_info.release_timeout_id = 0; +	} + +	if (view->loading_timeout) { +		g_source_remove (view->loading_timeout); +		view->loading_timeout = 0; +	} + +	ev_view_set_scroll_adjustments (GTK_LAYOUT (view), NULL, NULL); + +	GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object); +} + +static AtkObject * +ev_view_get_accessible (GtkWidget *widget) +{ +	static gboolean first_time = TRUE; + +	if (first_time)	{ +		AtkObjectFactory *factory; +		AtkRegistry *registry; +		GType derived_type;  +		GType derived_atk_type;  + +		/* +		 * Figure out whether accessibility is enabled by looking at the +		 * type of the accessible object which would be created for +		 * the parent type of EvView. +		 */ +		derived_type = g_type_parent (EV_TYPE_VIEW); + +		registry = atk_get_default_registry (); +		factory = atk_registry_get_factory (registry, +						    derived_type); +		derived_atk_type = atk_object_factory_get_accessible_type (factory); +		if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE)) { +			atk_registry_set_factory_type (registry, +						       EV_TYPE_VIEW, +						       ev_view_accessible_factory_get_type ()); +			EV_VIEW (widget)->a11y_enabled = TRUE; +		} +		first_time = FALSE; +	}  +	return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget); +} + +static void +ev_view_class_init (EvViewClass *class) +{ +	GObjectClass *object_class = G_OBJECT_CLASS (class); +	GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class); +	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); +	GtkLayoutClass *layout_class = GTK_LAYOUT_CLASS (class); +	GtkBindingSet *binding_set; + +	object_class->finalize = ev_view_finalize; + +	widget_class->expose_event = ev_view_expose_event; +	widget_class->button_press_event = ev_view_button_press_event; +	widget_class->motion_notify_event = ev_view_motion_notify_event; +	widget_class->button_release_event = ev_view_button_release_event; +	widget_class->key_press_event = ev_view_key_press_event; +	widget_class->focus_in_event = ev_view_focus_in; +	widget_class->focus_out_event = ev_view_focus_out; + 	widget_class->get_accessible = ev_view_get_accessible; +	widget_class->size_request = ev_view_size_request; +	widget_class->size_allocate = ev_view_size_allocate; +	widget_class->realize = ev_view_realize; +	widget_class->scroll_event = ev_view_scroll_event; +	widget_class->enter_notify_event = ev_view_enter_notify_event; +	widget_class->leave_notify_event = ev_view_leave_notify_event; +	widget_class->style_set = ev_view_style_set; +	widget_class->drag_data_get = ev_view_drag_data_get; +	widget_class->drag_motion = ev_view_drag_motion; +	widget_class->popup_menu = ev_view_popup_menu; +	widget_class->query_tooltip = ev_view_query_tooltip; + +	gtk_object_class->destroy = ev_view_destroy; + +	layout_class->set_scroll_adjustments = ev_view_set_scroll_adjustments; +	 +	class->binding_activated = ev_view_scroll; + +	signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated", +	  	         G_TYPE_FROM_CLASS (object_class), +		         G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +		         G_STRUCT_OFFSET (EvViewClass, binding_activated), +		         NULL, NULL, +		         ev_view_marshal_VOID__ENUM_BOOLEAN, +		         G_TYPE_NONE, 2, +		         GTK_TYPE_SCROLL_TYPE, +		         G_TYPE_BOOLEAN); +	signals[SIGNAL_HANDLE_LINK] = g_signal_new ("handle-link", +	  	         G_TYPE_FROM_CLASS (object_class), +		         G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +		         G_STRUCT_OFFSET (EvViewClass, handle_link), +		         NULL, NULL, +		         g_cclosure_marshal_VOID__OBJECT, +		         G_TYPE_NONE, 1, +			 G_TYPE_OBJECT); +	signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link", +	  	         G_TYPE_FROM_CLASS (object_class), +		         G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +		         G_STRUCT_OFFSET (EvViewClass, external_link), +		         NULL, NULL, +		         g_cclosure_marshal_VOID__OBJECT, +		         G_TYPE_NONE, 1, +			 G_TYPE_OBJECT); +	signals[SIGNAL_POPUP_MENU] = g_signal_new ("popup", +	  	         G_TYPE_FROM_CLASS (object_class), +		         G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +		         G_STRUCT_OFFSET (EvViewClass, popup_menu), +		         NULL, NULL, +		         g_cclosure_marshal_VOID__POINTER, +		         G_TYPE_NONE, 1, +			 G_TYPE_POINTER); +	signals[SIGNAL_SELECTION_CHANGED] = g_signal_new ("selection-changed", +                         G_TYPE_FROM_CLASS (object_class), +                         G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +                         G_STRUCT_OFFSET (EvViewClass, selection_changed), +                         NULL, NULL, +			 g_cclosure_marshal_VOID__VOID, +                         G_TYPE_NONE, 0, +                         G_TYPE_NONE); +	signals[SIGNAL_SYNC_SOURCE] = g_signal_new ("sync-source", +	  	         G_TYPE_FROM_CLASS (object_class), +		         G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +		         G_STRUCT_OFFSET (EvViewClass, sync_source), +		         NULL, NULL, +		         g_cclosure_marshal_VOID__POINTER, +		         G_TYPE_NONE, 1, +			 G_TYPE_POINTER); +	signals[SIGNAL_ANNOT_ADDED] = g_signal_new ("annot-added", +	  	         G_TYPE_FROM_CLASS (object_class), +		         G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, +		         G_STRUCT_OFFSET (EvViewClass, annot_added), +		         NULL, NULL, +		         g_cclosure_marshal_VOID__OBJECT, +		         G_TYPE_NONE, 1, +			 EV_TYPE_ANNOTATION); + +	binding_set = gtk_binding_set_by_class (class); + +	add_scroll_binding_keypad (binding_set, GDK_Left,  0, GTK_SCROLL_STEP_BACKWARD, TRUE); +	add_scroll_binding_keypad (binding_set, GDK_Right, 0, GTK_SCROLL_STEP_FORWARD,  TRUE); +	add_scroll_binding_keypad (binding_set, GDK_Left,  GDK_MOD1_MASK, GTK_SCROLL_STEP_DOWN, TRUE); +	add_scroll_binding_keypad (binding_set, GDK_Right, GDK_MOD1_MASK, GTK_SCROLL_STEP_UP,  TRUE); +	add_scroll_binding_keypad (binding_set, GDK_Up,    0, GTK_SCROLL_STEP_BACKWARD, FALSE); +	add_scroll_binding_keypad (binding_set, GDK_Down,  0, GTK_SCROLL_STEP_FORWARD,  FALSE); +	add_scroll_binding_keypad (binding_set, GDK_Up,    GDK_MOD1_MASK, GTK_SCROLL_STEP_DOWN, FALSE); +	add_scroll_binding_keypad (binding_set, GDK_Down,  GDK_MOD1_MASK, GTK_SCROLL_STEP_UP,  FALSE); +	gtk_binding_entry_add_signal (binding_set, GDK_H, 0, "binding_activated", 2, GTK_TYPE_SCROLL_TYPE, +				      GTK_SCROLL_STEP_BACKWARD, G_TYPE_BOOLEAN, TRUE); +	gtk_binding_entry_add_signal (binding_set, GDK_J, 0, "binding_activated", 2, GTK_TYPE_SCROLL_TYPE, +				      GTK_SCROLL_STEP_FORWARD, G_TYPE_BOOLEAN, FALSE); +	gtk_binding_entry_add_signal (binding_set, GDK_K, 0, "binding_activated", 2, GTK_TYPE_SCROLL_TYPE, +				      GTK_SCROLL_STEP_BACKWARD, G_TYPE_BOOLEAN, FALSE); +	gtk_binding_entry_add_signal (binding_set, GDK_L, 0, "binding_activated", 2, GTK_TYPE_SCROLL_TYPE, +				      GTK_SCROLL_STEP_FORWARD, G_TYPE_BOOLEAN, TRUE); +	 +} + +static void +ev_view_init (EvView *view) +{ +	gtk_widget_set_can_focus (GTK_WIDGET (view), TRUE); + +	view->start_page = -1; +	view->end_page = -1; +	view->spacing = 5; +	view->scale = 1.0; +	view->current_page = 0; +	view->pressed_button = -1; +	view->cursor = EV_VIEW_CURSOR_NORMAL; +	view->drag_info.in_drag = FALSE; +	view->scroll_info.autoscrolling = FALSE; +	view->selection_info.selections = NULL; +	view->selection_info.in_selection = FALSE; +	view->selection_info.in_drag = FALSE; +	view->selection_mode = EV_VIEW_SELECTION_TEXT; +	view->continuous = TRUE; +	view->dual_page = FALSE; +	view->fullscreen = FALSE; +	view->sizing_mode = EV_SIZING_FIT_WIDTH; +	view->pending_scroll = SCROLL_TO_KEEP_POSITION; +	view->jump_to_find_result = TRUE; +	view->highlight_find_results = FALSE; + +	gtk_layout_set_hadjustment (GTK_LAYOUT (view), NULL); +	gtk_layout_set_vadjustment (GTK_LAYOUT (view), NULL); +} + +/*** Callbacks ***/ + +static void +ev_view_change_page (EvView *view, +		     gint    new_page) +{ +	gint x, y; + +	view->current_page = new_page; +	view->pending_scroll = SCROLL_TO_PAGE_POSITION; + +	hide_loading_window (view); + +	gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y); +	ev_view_handle_cursor_over_xy (view, x, y); + +	gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +static void +job_finished_cb (EvPixbufCache  *pixbuf_cache, +		 cairo_region_t *region, +		 EvView         *view) +{ +	if (region) { +		GdkWindow *bin_window; + +		bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); +#if GTK_CHECK_VERSION(2, 90, 5) +		gdk_window_invalidate_region (bin_window, region, TRUE); +#else +	{ +		GdkRegion *gdk_region = gdk_region_new (); +		guint      n_recs = cairo_region_num_rectangles (region); +		guint      i; + +		for (i = 0; i < n_recs; i++) { +			cairo_rectangle_int_t rect; + +			cairo_region_get_rectangle (region, i, &rect); +			gdk_region_union_with_rect (gdk_region, (GdkRectangle *)&rect); +		} +		gdk_window_invalidate_region (bin_window, gdk_region, TRUE); +		gdk_region_destroy (gdk_region); +	} +#endif +	} else { +		gtk_widget_queue_draw (GTK_WIDGET (view)); +	} +} + +static void +ev_view_page_changed_cb (EvDocumentModel *model, +			 gint             old_page, +			 gint             new_page, +			 EvView          *view) +{ +	if (!view->document) +		return; + +	if (view->current_page != new_page) { +		ev_view_change_page (view, new_page); +	} else { +		gtk_widget_queue_draw (GTK_WIDGET (view)); +	} + +	view->find_result = 0; +} + +static void +on_adjustment_value_changed (GtkAdjustment *adjustment, +			     EvView        *view) +{ +	int dx = 0, dy = 0; +	gint x, y; +	gint value; +	GList *children, *l; + +	if (!gtk_widget_get_realized (GTK_WIDGET (view))) +		return; + +	if (view->hadjustment) { +		value = (gint) gtk_adjustment_get_value (view->hadjustment); +		dx = view->scroll_x - value; +		view->scroll_x = value; +	} else { +		view->scroll_x = 0; +	} + +	if (view->vadjustment) { +		value = (gint) gtk_adjustment_get_value (view->vadjustment); +		dy = view->scroll_y - value; +		view->scroll_y = value; +	} else { +		view->scroll_y = 0; +	} + +	children = gtk_container_get_children (GTK_CONTAINER (view)); +	for (l = children; l && l->data; l = g_list_next (l)) { +		gint       child_x, child_y; +		GtkWidget *child = (GtkWidget *)l->data; +		 +		gtk_container_child_get (GTK_CONTAINER (view), +					 child, +					 "x", &child_x, +					 "y", &child_y, +					 NULL); +		gtk_layout_move (GTK_LAYOUT (view), child, child_x + dx, child_y + dy); +	} +	g_list_free (children); + +	for (l = view->window_children; l && l->data; l = g_list_next (l)) { +		EvViewWindowChild *child; + +		child = (EvViewWindowChild *)l->data; + +		ev_view_window_child_move (view, child, child->x + dx, child->y + dy); +	} +	 +	if (view->pending_resize) { +		gtk_widget_queue_draw (GTK_WIDGET (view)); +	} else { +		GdkWindow *bin_window; + +		bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); +		gdk_window_scroll (bin_window, dx, dy); +	} + +	gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y); +	ev_view_handle_cursor_over_xy (view, x, y); + +	if (view->document) +		view_update_range_and_current_page (view); +} + +GtkWidget* +ev_view_new (void) +{ +	GtkWidget *view; + +	view = g_object_new (EV_TYPE_VIEW, NULL); + +	return view; +} + +static void +setup_caches (EvView *view) +{ +	gboolean inverted_colors; + +	view->height_to_page_cache = ev_view_get_height_to_page_cache (view); +	view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->model, view->pixbuf_cache_size); +	view->page_cache = ev_page_cache_new (view->document); +	if (view->a11y_enabled) { +		EvJobPageDataFlags flags = ev_page_cache_get_flags (view->page_cache); + +		ev_page_cache_set_flags (view->page_cache, +					 flags | +					 EV_PAGE_DATA_INCLUDE_TEXT_LAYOUT | +					 EV_PAGE_DATA_INCLUDE_TEXT); +	} +	inverted_colors = ev_document_model_get_inverted_colors (view->model); +	ev_pixbuf_cache_set_inverted_colors (view->pixbuf_cache, inverted_colors); +	g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view); +} + +static void +clear_caches (EvView *view) +{ +	if (view->pixbuf_cache) { +		g_object_unref (view->pixbuf_cache); +		view->pixbuf_cache = NULL; +	} + +	if (view->page_cache) { +		g_object_unref (view->page_cache); +		view->page_cache = NULL; +	} +} + +/** + * ev_view_set_page_cache_size: + * @view: + * @cache_size: + * + * Sets the maximum size in bytes that will be used to cache + * rendered pages. Use 0 to disable caching rendered pages. + * + * Note that this limit doesn't affect the current visible page range, + * which will always be rendered. In order to limit the total memory used + * you have to use ev_document_model_set_max_scale() too. + * + */ +void +ev_view_set_page_cache_size (EvView *view, +			     gsize   cache_size) +{ +	if (view->pixbuf_cache_size == cache_size) +		return; + +	view->pixbuf_cache_size = cache_size; +	if (view->pixbuf_cache) +		ev_pixbuf_cache_set_max_size (view->pixbuf_cache, cache_size); +} + +void +ev_view_set_loading (EvView 	  *view, +		     gboolean      loading) +{ +	if (view->loading && !loading) +		hide_loading_window (view); +	view->loading = loading; +	gtk_widget_queue_draw (GTK_WIDGET (view)); +} + +static gboolean +ev_view_autoscroll_cb (EvView *view) +{ +	gdouble speed, value; + +	/* If the user stops autoscrolling, autoscrolling will be +	 * set to false but the timeout will continue; stop the timeout: */ +	if (!view->scroll_info.autoscrolling) { +		view->scroll_info.timeout_id = 0; +		return FALSE; +	} +	 +	if (view->scroll_info.last_y > view->scroll_info.start_y &&  +		(view->scroll_info.last_y < view->scroll_info.start_y)) +		return TRUE;  + +	/* Replace 100 with your speed of choice: The lower the faster. +	 * Replace 3 with another speed of choice: The higher, the faster it accelerated +	 * 	based on the distance of the starting point from the mouse +	 * (All also effected by the timeout interval of this callback) */ + +	if (view->scroll_info.start_y > view->scroll_info.last_y) +		speed = -pow ((((gdouble)view->scroll_info.start_y - view->scroll_info.last_y) / 100), 3); +	else +		speed = pow ((((gdouble)view->scroll_info.last_y - view->scroll_info.start_y) / 100), 3); +	 +	value = gtk_adjustment_get_value (view->vadjustment); +	value = CLAMP (value + speed, 0, +		       gtk_adjustment_get_upper (view->vadjustment) - +		       gtk_adjustment_get_page_size (view->vadjustment)); +	gtk_adjustment_set_value (view->vadjustment, value); +	 +	return TRUE; + +} + +void +ev_view_autoscroll_start (EvView *view) +{ +	gint x, y; +	 +	g_return_if_fail (EV_IS_VIEW (view)); + +	if (view->scroll_info.autoscrolling) +		return; +	 +	view->scroll_info.autoscrolling = TRUE; +	view->scroll_info.timeout_id = +		g_timeout_add (20, (GSourceFunc)ev_view_autoscroll_cb, +			       view); +	 +	gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y); +	ev_view_handle_cursor_over_xy (view, x, y); +} + +void +ev_view_autoscroll_stop (EvView *view) +{ +	gint x, y; +	 +	g_return_if_fail (EV_IS_VIEW (view)); + +	if (!view->scroll_info.autoscrolling) +		return; + +	view->scroll_info.autoscrolling = FALSE; +	if (view->scroll_info.timeout_id) { +		g_source_remove (view->scroll_info.timeout_id); +		view->scroll_info.timeout_id = 0; +	} + +	gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y); +	ev_view_handle_cursor_over_xy (view, x, y); +} + +static void +ev_view_document_changed_cb (EvDocumentModel *model, +			     GParamSpec      *pspec, +			     EvView          *view) +{ +	EvDocument *document = ev_document_model_get_document (model); + +	if (document != view->document) { +		gint current_page; + +		clear_caches (view); + +		if (view->document) { +			g_object_unref (view->document); +                } + +		view->document = document; +		view->find_result = 0; + +		if (view->document) { +			view->loading = FALSE; +			g_object_ref (view->document); +			setup_caches (view); +                } + +		current_page = ev_document_model_get_page (model); +		if (view->current_page != current_page) { +			ev_view_change_page (view, current_page); +		} else { +			view->pending_scroll = SCROLL_TO_KEEP_POSITION; +			gtk_widget_queue_resize (GTK_WIDGET (view)); +		} +	} +} + +static void +ev_view_rotation_changed_cb (EvDocumentModel *model, +			     GParamSpec      *pspec, +			     EvView          *view) +{ +	gint rotation = ev_document_model_get_rotation (model); + +	view->rotation = rotation; + +	if (view->pixbuf_cache) { +		ev_pixbuf_cache_clear (view->pixbuf_cache); +		if (!ev_document_is_page_size_uniform (view->document)) +			view->pending_scroll = SCROLL_TO_PAGE_POSITION; +		gtk_widget_queue_resize (GTK_WIDGET (view)); +	} + +	ev_view_remove_all (view); + +	if (rotation != 0) +		clear_selection (view); +} + +static void +ev_view_inverted_colors_changed_cb (EvDocumentModel *model, +				    GParamSpec      *pspec, +				    EvView          *view) +{ +	if (view->pixbuf_cache) { +		gboolean inverted_colors; + +		inverted_colors = ev_document_model_get_inverted_colors (model); +		ev_pixbuf_cache_set_inverted_colors (view->pixbuf_cache, inverted_colors); +		gtk_widget_queue_draw (GTK_WIDGET (view)); +	} +} + +static void +ev_view_sizing_mode_changed_cb (EvDocumentModel *model, +				GParamSpec      *pspec, +				EvView          *view) +{ +	EvSizingMode mode = ev_document_model_get_sizing_mode (model); + +	view->sizing_mode = mode; +	if (mode != EV_SIZING_FREE) +		gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +#define EPSILON 0.0000001 +static void +ev_view_scale_changed_cb (EvDocumentModel *model, +			  GParamSpec      *pspec, +			  EvView          *view) +{ +	gdouble scale = ev_document_model_get_scale (model); + +	if (ABS (view->scale - scale) < EPSILON) +		return; + +	view->scale = scale; + +	view->pending_resize = TRUE; +	if (view->sizing_mode == EV_SIZING_FREE) +		gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +static void +ev_view_continuous_changed_cb (EvDocumentModel *model, +			       GParamSpec      *pspec, +			       EvView          *view) +{ +	gboolean continuous = ev_document_model_get_continuous (model); + +	view->continuous = continuous; +	view->pending_scroll = SCROLL_TO_PAGE_POSITION; +	gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +static void +ev_view_dual_page_changed_cb (EvDocumentModel *model, +			      GParamSpec      *pspec, +			      EvView          *view) +{ +	gboolean dual_page = ev_document_model_get_dual_page (model); + +	view->dual_page = dual_page; +	view->pending_scroll = SCROLL_TO_PAGE_POSITION; +	/* FIXME: if we're keeping the pixbuf cache around, we should extend the +	 * preload_cache_size to be 2 if dual_page is set. +	 */ +	gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +static void +ev_view_fullscreen_changed_cb (EvDocumentModel *model, +			       GParamSpec      *pspec, +			       EvView          *view) +{ +	gboolean fullscreen = ev_document_model_get_fullscreen (model); + +	view->fullscreen = fullscreen; +	gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +void +ev_view_set_model (EvView          *view, +		   EvDocumentModel *model) +{ +	g_return_if_fail (EV_IS_VIEW (view)); +	g_return_if_fail (EV_IS_DOCUMENT_MODEL (model)); + +	if (model == view->model) +		return; + +	if (view->model) { +		g_signal_handlers_disconnect_by_func (view->model, +						      ev_view_document_changed_cb, +						      view); +		g_signal_handlers_disconnect_by_func (view->model, +						      ev_view_page_changed_cb, +						      view); +		g_object_unref (view->model); +	} +	view->model = g_object_ref (model); + +	/* Initialize view from model */ +	view->rotation = ev_document_model_get_rotation (view->model); +	view->sizing_mode = ev_document_model_get_sizing_mode (view->model); +	view->scale = ev_document_model_get_scale (view->model); +	view->continuous = ev_document_model_get_continuous (view->model); +	view->dual_page = ev_document_model_get_dual_page (view->model); +	view->fullscreen = ev_document_model_get_fullscreen (view->model); +	ev_view_document_changed_cb (view->model, NULL, view); + +	g_signal_connect (view->model, "notify::document", +			  G_CALLBACK (ev_view_document_changed_cb), +			  view); +	g_signal_connect (view->model, "notify::rotation", +			  G_CALLBACK (ev_view_rotation_changed_cb), +			  view); +	g_signal_connect (view->model, "notify::inverted-colors", +			  G_CALLBACK (ev_view_inverted_colors_changed_cb), +			  view); +	g_signal_connect (view->model, "notify::sizing-mode", +			  G_CALLBACK (ev_view_sizing_mode_changed_cb), +			  view); +	g_signal_connect (view->model, "notify::scale", +			  G_CALLBACK (ev_view_scale_changed_cb), +			  view); +	g_signal_connect (view->model, "notify::continuous", +			  G_CALLBACK (ev_view_continuous_changed_cb), +			  view); +	g_signal_connect (view->model, "notify::dual-page", +			  G_CALLBACK (ev_view_dual_page_changed_cb), +			  view); +	g_signal_connect (view->model, "notify::fullscreen", +			  G_CALLBACK (ev_view_fullscreen_changed_cb), +			  view); +	g_signal_connect (view->model, "page-changed", +			  G_CALLBACK (ev_view_page_changed_cb), +			  view); +} + +static void +ev_view_reload_page (EvView         *view, +		     gint            page, +		     cairo_region_t *region) +{ +	ev_pixbuf_cache_reload_page (view->pixbuf_cache, +				     region, +				     page, +				     view->rotation, +				     view->scale); +} + +void +ev_view_reload (EvView *view) +{ +	ev_pixbuf_cache_clear (view->pixbuf_cache); +	view_update_range_and_current_page (view); +} + +/*** Zoom and sizing mode ***/ + +gboolean +ev_view_can_zoom_in (EvView *view) +{ +	return view->scale * ZOOM_IN_FACTOR <= ev_document_model_get_max_scale (view->model); +} + +gboolean +ev_view_can_zoom_out (EvView *view) +{ +	return view->scale * ZOOM_OUT_FACTOR >= ev_document_model_get_min_scale (view->model); +} + +void +ev_view_zoom_in (EvView *view) +{ +	gdouble scale; + +	g_return_if_fail (view->sizing_mode == EV_SIZING_FREE); + +	view->pending_scroll = SCROLL_TO_CENTER; +	scale = ev_document_model_get_scale (view->model) * ZOOM_IN_FACTOR; +	ev_document_model_set_scale (view->model, scale); +} + +void +ev_view_zoom_out (EvView *view) +{ +	gdouble scale; + +	g_return_if_fail (view->sizing_mode == EV_SIZING_FREE); + +	view->pending_scroll = SCROLL_TO_CENTER; +	scale = ev_document_model_get_scale (view->model) * ZOOM_OUT_FACTOR; +	ev_document_model_set_scale (view->model, scale); +} + +static double +zoom_for_size_fit_width (gdouble doc_width, +			 gdouble doc_height, +			 int     target_width, +			 int     target_height) +{ +	return (double)target_width / doc_width; +} + +static double +zoom_for_size_fit_height (gdouble doc_width, +			  gdouble doc_height, +			  int     target_width, +			  int     target_height) +{ +	return (double)target_height / doc_height; +} + +static double +zoom_for_size_best_fit (gdouble doc_width, +			gdouble doc_height, +			int     target_width, +			int     target_height) +{ +	double w_scale; +	double h_scale; + +	w_scale = (double)target_width / doc_width; +	h_scale = (double)target_height / doc_height; + +	return MIN (w_scale, h_scale); +} + +static void +ev_view_zoom_for_size_continuous_and_dual_page (EvView *view, +						int     width, +						int     height) +{ +	gdouble doc_width, doc_height; +	GtkBorder border; +	gdouble scale; +	gint sb_size; + +	ev_document_get_max_page_size (view->document, &doc_width, &doc_height); +	if (view->rotation == 90 || view->rotation == 270) { +		gdouble tmp; + +		tmp = doc_width; +		doc_width = doc_height; +		doc_height = tmp; +	} + +	compute_border (view, doc_width, doc_height, &border); + +	doc_width *= 2; +	width -= (2 * (border.left + border.right) + 3 * view->spacing); +	height -= (border.top + border.bottom + 2 * view->spacing - 1); + +	sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL); + +	if (view->sizing_mode == EV_SIZING_FIT_WIDTH) { +		scale = zoom_for_size_fit_width (doc_width, doc_height, width - sb_size, height); +	} else if (view->sizing_mode == EV_SIZING_BEST_FIT) +		scale = zoom_for_size_best_fit (doc_width, doc_height, width - sb_size, height); +	else +		g_assert_not_reached (); + +	ev_document_model_set_scale (view->model, scale); +} + +static void +ev_view_zoom_for_size_continuous (EvView *view, +				  int     width, +				  int     height) +{ +	gdouble doc_width, doc_height; +	GtkBorder border; +	gdouble scale; +	gint sb_size; + +	ev_document_get_max_page_size (view->document, &doc_width, &doc_height); +	if (view->rotation == 90 || view->rotation == 270) { +		gdouble tmp; + +		tmp = doc_width; +		doc_width = doc_height; +		doc_height = tmp; +	} + +	compute_border (view, doc_width, doc_height, &border); + +	width -= (border.left + border.right + 2 * view->spacing); +	height -= (border.top + border.bottom + 2 * view->spacing - 1); + +	sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL); + +	if (view->sizing_mode == EV_SIZING_FIT_WIDTH) { +		scale = zoom_for_size_fit_width (doc_width, doc_height, width - sb_size, height); +	} else if (view->sizing_mode == EV_SIZING_BEST_FIT) +		scale = zoom_for_size_best_fit (doc_width, doc_height, width - sb_size, height); +	else +		g_assert_not_reached (); + +	ev_document_model_set_scale (view->model, scale); +} + +static void +ev_view_zoom_for_size_dual_page (EvView *view, +				 int     width, +				 int     height) +{ +	GtkBorder border; +	gdouble doc_width, doc_height; +	gdouble scale; +	gint other_page; + +	other_page = view->current_page ^ 1; + +	/* Find the largest of the two. */ +	get_doc_page_size (view, view->current_page, &doc_width, &doc_height); +	if (other_page < ev_document_get_n_pages (view->document)) { +		gdouble width_2, height_2; + +		get_doc_page_size (view, other_page, &width_2, &height_2); +		if (width_2 > doc_width) +			doc_width = width_2; +		if (height_2 > doc_height) +			doc_height = height_2; +	} +	compute_border (view, width, height, &border); + +	doc_width = doc_width * 2; +	width -= ((border.left + border.right)* 2 + 3 * view->spacing); +	height -= (border.top + border.bottom + 2 * view->spacing); + +	if (view->sizing_mode == EV_SIZING_FIT_WIDTH) { +		gint sb_size; + +		sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL); +		scale = zoom_for_size_fit_width (doc_width, doc_height, width - sb_size, height); +	} else if (view->sizing_mode == EV_SIZING_BEST_FIT) +		scale = zoom_for_size_best_fit (doc_width, doc_height, width, height); +	else +		g_assert_not_reached (); + +	ev_document_model_set_scale (view->model, scale); +} + +static void +ev_view_zoom_for_size_single_page (EvView *view, +				   int     width, +				   int     height) +{ +	gdouble doc_width, doc_height; +	GtkBorder border; +	gdouble scale; + +	get_doc_page_size (view, view->current_page, &doc_width, &doc_height); + +	/* Get an approximate border */ +	compute_border (view, width, height, &border); + +	width -= (border.left + border.right + 2 * view->spacing); +	height -= (border.top + border.bottom + 2 * view->spacing); + +	if (view->sizing_mode == EV_SIZING_FIT_WIDTH) { +		gint sb_size; + +		sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL); +		scale = zoom_for_size_fit_width (doc_width, doc_height, width - sb_size, height); +	} else if (view->sizing_mode == EV_SIZING_BEST_FIT) +		scale = zoom_for_size_best_fit (doc_width, doc_height, width, height); +	else +		g_assert_not_reached (); + +	ev_document_model_set_scale (view->model, scale); +} + +static void +ev_view_zoom_for_size (EvView *view, +		       int     width, +		       int     height) +{ +	g_return_if_fail (EV_IS_VIEW (view)); +	g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH || +			  view->sizing_mode == EV_SIZING_BEST_FIT); +	g_return_if_fail (width >= 0); +	g_return_if_fail (height >= 0); + +	if (view->document == NULL) +		return; + +	if (view->continuous && view->dual_page) +		ev_view_zoom_for_size_continuous_and_dual_page (view, width, height); +	else if (view->continuous) +		ev_view_zoom_for_size_continuous (view, width, height); +	else if (view->dual_page) +		ev_view_zoom_for_size_dual_page (view, width, height); +	else +		ev_view_zoom_for_size_single_page (view, width, height); +} + +/*** Find ***/ +static gint +ev_view_find_get_n_results (EvView *view, gint page) +{ +	return view->find_pages ? g_list_length (view->find_pages[page]) : 0; +} + +static EvRectangle * +ev_view_find_get_result (EvView *view, gint page, gint result) +{ +	return view->find_pages ? (EvRectangle *) g_list_nth_data (view->find_pages[page], result) : NULL; +} + +static void +jump_to_find_result (EvView *view) +{ +	gint n_results; +	gint page = view->current_page; + +	n_results = ev_view_find_get_n_results (view, page); + +	if (n_results > 0 && view->find_result < n_results) { +		EvRectangle *rect; +		GdkRectangle view_rect; + +		rect = ev_view_find_get_result (view, page, view->find_result); +		doc_rect_to_view_rect (view, page, rect, &view_rect); +		ensure_rectangle_is_visible (view, &view_rect); +		view->jump_to_find_result = FALSE; +	} +} + +/** + * jump_to_find_page + * @view: #EvView instance + * @direction: Direction to look + * @shift: Shift from current page + * + * Jumps to the first page that has occurences of searched word. + * Uses a direction where to look and a shift from current page.  + * + */ +static void +jump_to_find_page (EvView *view, EvViewFindDirection direction, gint shift) +{ +	int n_pages, i; + +	n_pages = ev_document_get_n_pages (view->document); + +	for (i = 0; i < n_pages; i++) { +		int page; +		 +		if (direction == EV_VIEW_FIND_NEXT) +			page = view->current_page + i; +		else +			page = view->current_page - i;		 +		page += shift; +		 +		if (page >= n_pages) { +			page = page - n_pages; +		} else if (page < 0)  +			page = page + n_pages; + +		if (ev_view_find_get_n_results (view, page) > 0) { +			ev_document_model_set_page (view->model, page); +			break; +		} +	} +} + +void +ev_view_find_changed (EvView *view, GList **results, gint page) +{ +	view->find_pages = results; +	 +	if (view->jump_to_find_result == TRUE) { +		jump_to_find_page (view, EV_VIEW_FIND_NEXT, 0); +		jump_to_find_result (view); +	} + +	if (view->current_page == page) +		gtk_widget_queue_draw (GTK_WIDGET (view)); +} + +void +ev_view_find_next (EvView *view) +{ +	gint n_results; + +	n_results = ev_view_find_get_n_results (view, view->current_page); +	view->find_result++; + +	if (view->find_result >= n_results) { +		view->find_result = 0; +		jump_to_find_page (view, EV_VIEW_FIND_NEXT, 1); +		jump_to_find_result (view); +	} else { +		jump_to_find_result (view); +		gtk_widget_queue_draw (GTK_WIDGET (view)); +	} +} + +void +ev_view_find_previous (EvView *view) +{ +	view->find_result--; + +	if (view->find_result < 0) { +		jump_to_find_page (view, EV_VIEW_FIND_PREV, -1); +		view->find_result = MAX (0, ev_view_find_get_n_results (view, view->current_page) - 1); +		jump_to_find_result (view); +	} else { +		jump_to_find_result (view); +		gtk_widget_queue_draw (GTK_WIDGET (view)); +	} +} + +void +ev_view_find_search_changed (EvView *view) +{ +	/* search string has changed, focus on new search result */ +	view->jump_to_find_result = TRUE; +	view->find_pages = NULL; +} + +void +ev_view_find_set_highlight_search (EvView *view, gboolean value) +{ +	view->highlight_find_results = value; +	gtk_widget_queue_draw (GTK_WIDGET (view)); +} + +void +ev_view_find_cancel (EvView *view) +{ +	view->find_pages = NULL; +} + +/*** Synctex ***/ +void +ev_view_highlight_forward_search (EvView       *view, +				  EvSourceLink *link) +{ +	EvMapping   *mapping; +	gint         page; +	GdkRectangle view_rect; + +	if (!ev_document_has_synctex (view->document)) +		return; + +	mapping = ev_document_synctex_forward_search (view->document, link); +	if (!mapping) +		return; + +	if (view->synctex_result) +		g_free (view->synctex_result); +	view->synctex_result = mapping; + +	page = GPOINTER_TO_INT (mapping->data); +	ev_document_model_set_page (view->model, page); + +	doc_rect_to_view_rect (view, page, &mapping->area, &view_rect); +	ensure_rectangle_is_visible (view, &view_rect); +	gtk_widget_queue_draw (GTK_WIDGET (view)); +} + +/*** Selections ***/ + +/* compute_new_selection_rect/text calculates the area currently selected by + * view_rect.  each handles a different mode; + */ +static GList * +compute_new_selection_rect (EvView       *view, +			    GdkPoint     *start, +			    GdkPoint     *stop) +{ +	GdkRectangle view_rect; +	int n_pages, i; +	GList *list = NULL; + +	g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE); +	 +	view_rect.x = MIN (start->x, stop->x); +	view_rect.y = MIN (start->y, stop->y); +	view_rect.width = MAX (start->x, stop->x) - view_rect.x; +	view_rect.width = MAX (start->y, stop->y) - view_rect.y; + +	n_pages = ev_document_get_n_pages (view->document); + +	for (i = 0; i < n_pages; i++) { +		GdkRectangle page_area; +		GtkBorder border; +		 +		if (ev_view_get_page_extents (view, i, &page_area, &border)) { +			GdkRectangle overlap; + +			if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) { +				EvViewSelection *selection; + +				selection = g_new0 (EvViewSelection, 1); +				selection->page = i; +				view_rect_to_doc_rect (view, &overlap, &page_area, +						       &(selection->rect)); + +				list = g_list_append (list, selection); +			} +		} +	} + +	return list; +} + +static gboolean +gdk_rectangle_point_in (GdkRectangle *rectangle, +			GdkPoint     *point) +{ +	return rectangle->x <= point->x && +		rectangle->y <= point->y && +		point->x < rectangle->x + rectangle->width && +		point->y < rectangle->y + rectangle->height; +} + +static GList * +compute_new_selection_text (EvView          *view, +			    EvSelectionStyle style, +			    GdkPoint        *start, +			    GdkPoint        *stop) +{ +	int n_pages, i, first, last; +	GList *list = NULL; +	EvViewSelection *selection; +	gdouble width, height; +	int start_page, end_page; + +	g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT); + +	n_pages = ev_document_get_n_pages (view->document); + +	/* First figure out the range of pages the selection +	 * affects. */ +	first = n_pages; +	last = 0; +	if (view->continuous) { +		start_page = 0; +		end_page = n_pages; +	} else if (view->dual_page) { +		start_page = view->start_page; +		end_page = view->end_page + 1; +	} else { +		start_page = view->current_page; +		end_page = view->current_page + 1; +	} + +	for (i = start_page; i < end_page; i++) { +		GdkRectangle page_area; +		GtkBorder border; +		 +		ev_view_get_page_extents (view, i, &page_area, &border); +		if (gdk_rectangle_point_in (&page_area, start) ||  +		    gdk_rectangle_point_in (&page_area, stop)) { +			if (first == n_pages) +				first = i; +			last = i; +		} + +	} + +	/* Now create a list of EvViewSelection's for the affected +	 * pages.  This could be an empty list, a list of just one +	 * page or a number of pages.*/ +	for (i = first; i < last + 1; i++) { +		GdkRectangle page_area; +		GtkBorder border; +		GdkPoint *point; + +		get_doc_page_size (view, i, &width, &height); + +		selection = g_new0 (EvViewSelection, 1); +		selection->page = i; +		selection->style = style; +		selection->rect.x1 = selection->rect.y1 = 0; +		selection->rect.x2 = width; +		selection->rect.y2 = height; + +		ev_view_get_page_extents (view, i, &page_area, &border); + +		if (gdk_rectangle_point_in (&page_area, start)) +			point = start; +		else +			point = stop; + +		if (i == first) +			view_point_to_doc_point (view, point, &page_area, +						 &selection->rect.x1, +						 &selection->rect.y1); + +		/* If the selection is contained within just one page, +		 * make sure we don't write 'start' into both points +		 * in selection->rect. */ +		if (first == last) +			point = stop; + +		if (i == last) +			view_point_to_doc_point (view, point, &page_area, +						 &selection->rect.x2, +						 &selection->rect.y2); + +		list = g_list_append (list, selection); +	} + +	return list; +} + +/* This function takes the newly calculated list, and figures out which regions + * have changed.  It then queues a redraw approporiately. + */ +static void +merge_selection_region (EvView *view, +			GList  *new_list) +{ +	GList *old_list; +	GList *new_list_ptr, *old_list_ptr; + +	/* Update the selection */ +	old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache); +	g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL); +	g_list_free (view->selection_info.selections); +	view->selection_info.selections = new_list; +	ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list); +	g_signal_emit (view, signals[SIGNAL_SELECTION_CHANGED], 0, NULL); + +	new_list_ptr = new_list; +	old_list_ptr = old_list; + +	while (new_list_ptr || old_list_ptr) { +		EvViewSelection *old_sel, *new_sel; +		int cur_page; +		cairo_region_t *region = NULL; + +		new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL; +		old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL; + +		/* Assume that the lists are in order, and we run through them +		 * comparing them, one page at a time.  We come out with the +		 * first page we see. */ +		if (new_sel && old_sel) { +			if (new_sel->page < old_sel->page) { +				new_list_ptr = new_list_ptr->next; +				old_sel = NULL; +			} else if (new_sel->page > old_sel->page) { +				old_list_ptr = old_list_ptr->next; +				new_sel = NULL; +			} else { +				new_list_ptr = new_list_ptr->next; +				old_list_ptr = old_list_ptr->next; +			} +		} else if (new_sel) { +			new_list_ptr = new_list_ptr->next; +		} else if (old_sel) { +			old_list_ptr = old_list_ptr->next; +		} + +		g_assert (new_sel || old_sel); + +		/* is the page we're looking at on the screen?*/ +		cur_page = new_sel ? new_sel->page : old_sel->page; +		if (cur_page < view->start_page || cur_page > view->end_page) +			continue; + +		/* seed the cache with a new page.  We are going to need the new +		 * region too. */ +		if (new_sel) { +			cairo_region_t *tmp_region = NULL; + +			ev_pixbuf_cache_get_selection_surface (view->pixbuf_cache, +							       cur_page, +							       view->scale, +							       &tmp_region); + +			if (tmp_region && !cairo_region_is_empty (tmp_region)) { +				new_sel->covered_region = cairo_region_reference (tmp_region); +			} +		} + +		/* Now we figure out what needs redrawing */ +		if (old_sel && new_sel) { +			if (old_sel->covered_region && new_sel->covered_region) { +				/* We only want to redraw the areas that have +				 * changed, so we xor the old and new regions +				 * and redraw if it's different */ +				region = cairo_region_copy (old_sel->covered_region); +#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 9, 12) +				cairo_region_xor (region, new_sel->covered_region); +#else +				cairo_region_t *tbr; +				tbr = cairo_region_copy (new_sel->covered_region); + +				/* xor old_sel, new_sel*/ +				cairo_region_subtract (tbr, region); +				cairo_region_subtract (region, new_sel->covered_region); +				cairo_region_union (region, tbr); +				cairo_region_destroy (tbr); +#endif + +				if (cairo_region_is_empty (region)) { +					cairo_region_destroy (region); +					region = NULL; +				} else { +					gint num_rectangles = cairo_region_num_rectangles (region); +					GdkRectangle r; + +					/* We need to make the damage region a little bigger +					 * because the edges of the old selection might change +					 */ +					cairo_region_get_rectangle (region, 0, &r); +					r.x -= 5; +					r.width = 5; +					cairo_region_union_rectangle (region, &r); + +					cairo_region_get_rectangle (region, num_rectangles - 1, &r); +					r.x += r.width; +					r.width = 5; +					cairo_region_union_rectangle (region, &r); +				} +			} else if (old_sel->covered_region) { +				region = cairo_region_copy (old_sel->covered_region); +			} else if (new_sel->covered_region) { +				region = cairo_region_copy (new_sel->covered_region); +			} +		} else if (old_sel && !new_sel) { +			if (old_sel->covered_region && !cairo_region_is_empty (old_sel->covered_region)) { +				region = cairo_region_copy (old_sel->covered_region); +			} +		} else if (!old_sel && new_sel) { +			if (new_sel->covered_region && !cairo_region_is_empty (new_sel->covered_region)) { +				region = cairo_region_copy (new_sel->covered_region); +			} +		} else { +			g_assert_not_reached (); +		} + +		/* Redraw the damaged region! */ +		if (region) { +			GdkWindow   *bin_window; +			GdkRectangle page_area; +			GtkBorder    border; + +			bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); +			ev_view_get_page_extents (view, cur_page, &page_area, &border); +			cairo_region_translate (region, +					   page_area.x + border.left - view->scroll_x, +					   page_area.y + border.top - view->scroll_y); +#if GTK_CHECK_VERSION(2, 90, 5) +			gdk_window_invalidate_region (bin_window, region, TRUE); +#else +		{ +			GdkRegion *gdk_region = gdk_region_new (); +			guint      n_recs = cairo_region_num_rectangles (region); +			guint      i; + +			for (i = 0; i < n_recs; i++) { +				cairo_rectangle_int_t rect; + +				cairo_region_get_rectangle (region, i, &rect); +				gdk_region_union_with_rect (gdk_region, (GdkRectangle *)&rect); +			} +			gdk_window_invalidate_region (bin_window, gdk_region, TRUE); +			gdk_region_destroy (gdk_region); +		} +#endif +			cairo_region_destroy (region); +		} +	} + +	/* Free the old list, now that we're done with it. */ +	g_list_foreach (old_list, (GFunc) selection_free, NULL); +	g_list_free (old_list); +} + +static void +compute_selections (EvView          *view, +		    EvSelectionStyle style, +		    GdkPoint        *start, +		    GdkPoint        *stop) +{ +	GList *list; + +	if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE) +		list = compute_new_selection_rect (view, start, stop); +	else +		list = compute_new_selection_text (view, style, start, stop); +	merge_selection_region (view, list); +} + +/* Free's the selection.  It's up to the caller to queue redraws if needed. + */ +static void +selection_free (EvViewSelection *selection) +{ +	if (selection->covered_region) +		cairo_region_destroy (selection->covered_region); +	g_free (selection); +} + +static void +clear_selection (EvView *view) +{ +	if (view->selection_info.selections) { +		g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL); +		g_list_free (view->selection_info.selections); +		view->selection_info.selections = NULL; + +		g_signal_emit (view, signals[SIGNAL_SELECTION_CHANGED], 0, NULL); +	} +	view->selection_info.in_selection = FALSE; +	if (view->pixbuf_cache) +		ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, NULL); +} + +void +ev_view_select_all (EvView *view) +{ +	GList *selections = NULL; +	int n_pages, i; + +	/* Disable selection on rotated pages for the 0.4.0 series */ +	if (view->rotation != 0) +		return; + +	clear_selection (view); +	 +	n_pages = ev_document_get_n_pages (view->document); +	for (i = 0; i < n_pages; i++) { +		gdouble width, height; +		EvViewSelection *selection; + +		get_doc_page_size (view, i, &width, &height); + +		selection = g_new0 (EvViewSelection, 1); +		selection->page = i; +		selection->style = EV_SELECTION_STYLE_GLYPH; +		selection->rect.x1 = selection->rect.y1 = 0; +		selection->rect.x2 = width; +		selection->rect.y2 = height; + +		selections = g_list_append (selections, selection); +	} + +	merge_selection_region (view, selections); +	gtk_widget_queue_draw (GTK_WIDGET (view)); +} + +gboolean +ev_view_get_has_selection (EvView *view) +{ +	return view->selection_info.selections != NULL; +} + +static char * +get_selected_text (EvView *view) +{ +	GString *text; +	GList *l; +	gchar *normalized_text; + +	text = g_string_new (NULL); + +	ev_document_doc_mutex_lock (); + +	for (l = view->selection_info.selections; l != NULL; l = l->next) { +		EvViewSelection *selection = (EvViewSelection *)l->data; +		EvPage *page; +		gchar *tmp; + +		page = ev_document_get_page (view->document, selection->page); +		tmp = ev_selection_get_selected_text (EV_SELECTION (view->document), +						      page, selection->style, +						      &(selection->rect)); +		g_object_unref (page); +		g_string_append (text, tmp); +		g_free (tmp); +	} + +	ev_document_doc_mutex_unlock (); +	 +	normalized_text = g_utf8_normalize (text->str, text->len, G_NORMALIZE_NFKC); +	g_string_free (text, TRUE); +	return normalized_text; +} + +static void +ev_view_clipboard_copy (EvView      *view, +			const gchar *text) +{ +	GtkClipboard *clipboard; + +	clipboard = gtk_widget_get_clipboard (GTK_WIDGET (view), +					      GDK_SELECTION_CLIPBOARD); +	gtk_clipboard_set_text (clipboard, text, -1); +} + +void +ev_view_copy (EvView *ev_view) +{ +	char *text; + +	if (!EV_IS_SELECTION (ev_view->document)) +		return; + +	text = get_selected_text (ev_view); +	ev_view_clipboard_copy (ev_view, text); +	g_free (text); +} + +static void +ev_view_primary_get_cb (GtkClipboard     *clipboard, +			GtkSelectionData *selection_data, +			guint             info, +			gpointer          data) +{ +	EvView *ev_view = EV_VIEW (data); + +	if (ev_view->link_selected) { +		gtk_selection_data_set_text (selection_data, +					     ev_link_action_get_uri (ev_view->link_selected), +					     -1); +	} else if (EV_IS_SELECTION (ev_view->document) && +		   ev_view->selection_info.selections) { +		gchar *text; +		 +		text = get_selected_text (ev_view); +		if (text) { +			gtk_selection_data_set_text (selection_data, text, -1); +			g_free (text); +		} +	} +} + +static void +ev_view_primary_clear_cb (GtkClipboard *clipboard, +			  gpointer      data) +{ +	EvView *view = EV_VIEW (data); + +	clear_selection (view); +	clear_link_selected (view); +} + +static void +ev_view_update_primary_selection (EvView *ev_view) +{ +	GtkClipboard *clipboard; + +	clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view), +                                              GDK_SELECTION_PRIMARY); + +	if (ev_view->selection_info.selections || ev_view->link_selected) { +                GtkTargetList *target_list; +                GtkTargetEntry *targets; +                int n_targets; + +                target_list = gtk_target_list_new (NULL, 0); +                gtk_target_list_add_text_targets (target_list, 0); +                targets = gtk_target_table_new_from_list (target_list, &n_targets); +                gtk_target_list_unref (target_list); +                 +		if (!gtk_clipboard_set_with_owner (clipboard, +						   targets, n_targets, +						   ev_view_primary_get_cb, +						   ev_view_primary_clear_cb, +						   G_OBJECT (ev_view))) +			ev_view_primary_clear_cb (clipboard, ev_view); + +                gtk_target_table_free (targets, n_targets); +	} else { +		if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view)) +			gtk_clipboard_clear (clipboard); +	} +} + +static void +clear_link_selected (EvView *view) +{ +	if (view->link_selected) { +		g_object_unref (view->link_selected); +		view->link_selected = NULL; +	} +} + +void +ev_view_copy_link_address (EvView       *view, +			   EvLinkAction *action) +{ +	clear_link_selected (view); +	 +	ev_view_clipboard_copy (view, ev_link_action_get_uri (action)); +	 +	view->link_selected = g_object_ref (action); +	ev_view_update_primary_selection (view); +} + +/*** Cursor operations ***/ +static void +ev_view_set_cursor (EvView *view, EvViewCursor new_cursor) +{ +	GdkCursor *cursor = NULL; +	GtkWidget *widget; +	GdkWindow *bin_window; + +	if (view->cursor == new_cursor) { +		return; +	} + +	view->cursor = new_cursor; + +	bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (view)); +	widget = gtk_widget_get_toplevel (GTK_WIDGET (view)); +	cursor = ev_view_cursor_new (gtk_widget_get_display (widget), new_cursor); +	gdk_window_set_cursor (bin_window, cursor); +	gdk_flush (); +	if (cursor) +		gdk_cursor_unref (cursor); +} + +void +ev_view_hide_cursor (EvView *view) +{ +       ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN); +} + +void +ev_view_show_cursor (EvView *view) +{ +       ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); +} + +gboolean +ev_view_next_page (EvView *view) +{ +	int page, n_pages; + +	g_return_val_if_fail (EV_IS_VIEW (view), FALSE); +	 +	if (!view->document) +		return FALSE; + +	page = ev_document_model_get_page (view->model); +	n_pages = ev_document_get_n_pages (view->document); + +	if (view->dual_page) +	        page = page + 2;  +	else  +		page = page + 1; + +	if (page < n_pages) { +		ev_document_model_set_page (view->model, page); +		return TRUE; +	} else if (view->dual_page && page == n_pages) { +		ev_document_model_set_page (view->model, page - 1); +		return TRUE; +	} else { +		return FALSE; +	} +} + +gboolean +ev_view_previous_page (EvView *view) +{ +	int page; + +	g_return_val_if_fail (EV_IS_VIEW (view), FALSE); + +	if (!view->document) +		return FALSE; + +	page = ev_document_model_get_page (view->model); + +	if (view->dual_page) +	        page = page - 2;  +	else  +		page = page - 1; + +	if (page >= 0) { +		ev_document_model_set_page (view->model, page); +		return TRUE; +	} else if (view->dual_page && page == -1) { +		ev_document_model_set_page (view->model, 0); +		return TRUE; +	} else {	 +		return FALSE; +	} +} +		 diff --git a/libview/ev-view.h b/libview/ev-view.h new file mode 100644 index 00000000..ccef4bb4 --- /dev/null +++ b/libview/ev-view.h @@ -0,0 +1,115 @@ +/* this file is part of evince, a mate document viewer + * + *  Copyright (C) 2004 Red Hat, Inc + * + * Evince is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Evince is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION) +#error "Only <evince-view.h> can be included directly." +#endif + +#ifndef __EV_VIEW_H__ +#define __EV_VIEW_H__ + +#include <gtk/gtk.h> + +#include <evince-document.h> + +#include "ev-document-model.h" + +G_BEGIN_DECLS + +#define EV_TYPE_VIEW            (ev_view_get_type ()) +#define EV_VIEW(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_VIEW, EvView)) +#define EV_IS_VIEW(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_VIEW)) + +typedef struct _EvView       EvView; +typedef struct _EvViewClass  EvViewClass; + +typedef enum { +	EV_VIEW_SELECTION_TEXT, +	EV_VIEW_SELECTION_RECTANGLE, +} EvViewSelectionMode; + +GType		ev_view_get_type	    (void) G_GNUC_CONST; + +GtkWidget*	ev_view_new		    (void); +void		ev_view_set_model	    (EvView          *view, +					     EvDocumentModel *model); +void 		ev_view_set_loading         (EvView 	     *view, +					     gboolean         loading); +void            ev_view_reload              (EvView          *view); +void            ev_view_set_page_cache_size (EvView          *view, +					     gsize            cache_size); + +/* Clipboard */ +void		ev_view_copy		  (EvView         *view); +void            ev_view_copy_link_address (EvView         *view, +					   EvLinkAction   *action); +void		ev_view_select_all	  (EvView         *view); +gboolean        ev_view_get_has_selection (EvView         *view); + +/* Page size */ +gboolean	ev_view_can_zoom_in       (EvView         *view); +void		ev_view_zoom_in		  (EvView         *view); +gboolean        ev_view_can_zoom_out      (EvView         *view); +void		ev_view_zoom_out	  (EvView         *view); + +/* Find */ +void            ev_view_find_next                 (EvView         *view); +void            ev_view_find_previous             (EvView         *view); +void            ev_view_find_search_changed       (EvView         *view); +void     	ev_view_find_set_highlight_search (EvView         *view, +						   gboolean        value); +void            ev_view_find_changed              (EvView         *view, +						   GList         **results, +						   gint            page); +void            ev_view_find_cancel               (EvView         *view); + +/* Synctex */ +void            ev_view_highlight_forward_search (EvView       *view, +						  EvSourceLink *link); + +/* Cursor */ +void           ev_view_hide_cursor        (EvView         *view); +void           ev_view_show_cursor        (EvView         *view); + +/* Navigation */ +void	       ev_view_scroll             (EvView         *view, +	                                   GtkScrollType   scroll, +					   gboolean        horizontal); +void	       ev_view_handle_link        (EvView         *view, +					   EvLink         *link); +gboolean       ev_view_next_page	  (EvView         *view); +gboolean       ev_view_previous_page	  (EvView         *view); + +void	       ev_view_autoscroll_start   (EvView *view); +void           ev_view_autoscroll_stop    (EvView *view); + +gboolean       ev_view_get_page_extents   (EvView       *view, +                                           gint          page, +                                           GdkRectangle *page_area, +                                           GtkBorder    *border); +/* Annotations */ +void           ev_view_focus_annotation      (EvView          *view, +					      EvMapping       *annot_mapping); +void           ev_view_begin_add_annotation  (EvView          *view, +					      EvAnnotationType annot_type); +void           ev_view_cancel_add_annotation (EvView          *view); + +G_END_DECLS + +#endif /* __EV_VIEW_H__ */  | 
