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Diffstat (limited to 'gedit/gedit-print-preview.c')
| -rwxr-xr-x | gedit/gedit-print-preview.c | 1327 |
1 files changed, 0 insertions, 1327 deletions
diff --git a/gedit/gedit-print-preview.c b/gedit/gedit-print-preview.c deleted file mode 100755 index 293a930b..00000000 --- a/gedit/gedit-print-preview.c +++ /dev/null @@ -1,1327 +0,0 @@ -/* - * gedit-print-preview.c - * - * Copyright (C) 2008 Paolo Borelli - * - * This program 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. - * - * This program 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., 59 Temple Place, Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/* - * Modified by the gedit Team, 1998-2006. See the AUTHORS file for a - * list of people on the gedit Team. - * See the ChangeLog files for a list of changes. - * - * $Id: gedit-commands-search.c 5931 2007-09-25 20:05:40Z pborelli $ - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <math.h> -#include <stdlib.h> -#include <glib/gi18n.h> -#include <gdk/gdkkeysyms.h> -#include <gtk/gtk.h> - -#include <cairo-pdf.h> - -#include "gedit-print-preview.h" - -#define PRINTER_DPI (72.) - -struct _GeditPrintPreviewPrivate -{ - GtkPrintOperation *operation; - GtkPrintContext *context; - GtkPrintOperationPreview *gtk_preview; - - GtkWidget *layout; - GtkWidget *scrolled_window; - - GtkToolItem *next; - GtkToolItem *prev; - GtkWidget *page_entry; - GtkWidget *last; - GtkToolItem *multi; - GtkToolItem *zoom_one; - GtkToolItem *zoom_fit; - GtkToolItem *zoom_in; - GtkToolItem *zoom_out; - - /* real size of the page in inches */ - double paper_w; - double paper_h; - double dpi; - - double scale; - - /* size of the tile of a page (including padding - * and drop shadow) in pixels */ - gint tile_w; - gint tile_h; - - GtkPageOrientation orientation; - - /* multipage support */ - gint rows; - gint cols; - - guint n_pages; - guint cur_page; -}; - -G_DEFINE_TYPE (GeditPrintPreview, gedit_print_preview, GTK_TYPE_VBOX) - -static void -gedit_print_preview_get_property (GObject *object, - guint prop_id, - GValue *value, - GParamSpec *pspec) -{ - //GeditPrintPreview *preview = GEDIT_PRINT_PREVIEW (object); - - switch (prop_id) - { - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gedit_print_preview_set_property (GObject *object, - guint prop_id, - const GValue *value, - GParamSpec *pspec) -{ - //GeditPrintPreview *preview = GEDIT_PRINT_PREVIEW (object); - - switch (prop_id) - { - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gedit_print_preview_finalize (GObject *object) -{ - //GeditPrintPreview *preview = GEDIT_PRINT_PREVIEW (object); - - G_OBJECT_CLASS (gedit_print_preview_parent_class)->finalize (object); -} - -static void -gedit_print_preview_grab_focus (GtkWidget *widget) -{ - GeditPrintPreview *preview; - - preview = GEDIT_PRINT_PREVIEW (widget); - - gtk_widget_grab_focus (GTK_WIDGET (preview->priv->layout)); -} - -static void -gedit_print_preview_class_init (GeditPrintPreviewClass *klass) -{ - GObjectClass *object_class; - GtkWidgetClass *widget_class; - - object_class = G_OBJECT_CLASS (klass); - widget_class = GTK_WIDGET_CLASS (klass); - - object_class->get_property = gedit_print_preview_get_property; - object_class->set_property = gedit_print_preview_set_property; - object_class->finalize = gedit_print_preview_finalize; - - widget_class->grab_focus = gedit_print_preview_grab_focus; - - g_type_class_add_private (object_class, sizeof(GeditPrintPreviewPrivate)); -} - -static void -update_layout_size (GeditPrintPreview *preview) -{ - GeditPrintPreviewPrivate *priv; - - priv = preview->priv; - - /* force size of the drawing area to make the scrolled window work */ - gtk_layout_set_size (GTK_LAYOUT (priv->layout), - priv->tile_w * priv->cols, - priv->tile_h * priv->rows); - - gtk_widget_queue_draw (preview->priv->layout); -} - -static void -set_rows_and_cols (GeditPrintPreview *preview, - gint rows, - gint cols) -{ - /* TODO: set the zoom appropriately */ - - preview->priv->rows = rows; - preview->priv->cols = cols; - update_layout_size (preview); -} - -/* get the paper size in points: these must be used only - * after the widget has been mapped and the dpi is known */ - -static double -get_paper_width (GeditPrintPreview *preview) -{ - return preview->priv->paper_w * preview->priv->dpi; -} - -static double -get_paper_height (GeditPrintPreview *preview) -{ - return preview->priv->paper_h * preview->priv->dpi; -} - -#define PAGE_PAD 12 -#define PAGE_SHADOW_OFFSET 5 - -/* The tile size is the size of the area where a page - * will be drawn including the padding and idependent - * of the orientation */ - -/* updates the tile size to the current zoom and page size */ -static void -update_tile_size (GeditPrintPreview *preview) -{ - GeditPrintPreviewPrivate *priv; - gint w, h; - - priv = preview->priv; - - w = 2 * PAGE_PAD + floor (priv->scale * get_paper_width (preview) + 0.5); - h = 2 * PAGE_PAD + floor (priv->scale * get_paper_height (preview) + 0.5); - - if ((priv->orientation == GTK_PAGE_ORIENTATION_LANDSCAPE) || - (priv->orientation == GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE)) - { - priv->tile_w = h; - priv->tile_h = w; - } - else - { - priv->tile_w = w; - priv->tile_h = h; - } -} - -/* Zoom should always be set with one of these two function - * so that the tile size is properly updated */ - -static void -set_zoom_factor (GeditPrintPreview *preview, - double zoom) -{ - GeditPrintPreviewPrivate *priv; - - priv = preview->priv; - - priv->scale = zoom; - - update_tile_size (preview); - update_layout_size (preview); -} - -static void -set_zoom_fit_to_size (GeditPrintPreview *preview) -{ - GeditPrintPreviewPrivate *priv; - double width, height; - double p_width, p_height; - double zoomx, zoomy; - - priv = preview->priv; - - g_object_get (gtk_layout_get_hadjustment (GTK_LAYOUT (priv->layout)), - "page-size", &width, - NULL); - g_object_get (gtk_layout_get_vadjustment (GTK_LAYOUT (priv->layout)), - "page-size", &height, - NULL); - - width /= priv->cols; - height /= priv->rows; - - if ((priv->orientation == GTK_PAGE_ORIENTATION_LANDSCAPE) || - (priv->orientation == GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE)) - { - p_width = get_paper_height (preview); - p_height = get_paper_width (preview); - } - else - { - p_width = get_paper_width (preview); - p_height = get_paper_height (preview); - } - - zoomx = MAX (1, width - 2 * PAGE_PAD) / p_width; - zoomy = MAX (1, height - 2 * PAGE_PAD) / p_height; - - if (zoomx <= zoomy) - { - priv->tile_w = width; - priv->tile_h = floor (0.5 + width * (p_height / p_width)); - priv->scale = zoomx; - } - else - { - priv->tile_w = floor (0.5 + height * (p_width / p_height)); - priv->tile_h = height; - priv->scale = zoomy; - } - - update_layout_size (preview); -} - -#define ZOOM_IN_FACTOR (1.2) -#define ZOOM_OUT_FACTOR (1.0 / ZOOM_IN_FACTOR) - -static void -zoom_in (GeditPrintPreview *preview) -{ - set_zoom_factor (preview, - preview->priv->scale * ZOOM_IN_FACTOR); -} - -static void -zoom_out (GeditPrintPreview *preview) -{ - set_zoom_factor (preview, - preview->priv->scale * ZOOM_OUT_FACTOR); -} - -static void -goto_page (GeditPrintPreview *preview, gint page) -{ - gchar c[32]; - - g_snprintf (c, 32, "%d", page + 1); - gtk_entry_set_text (GTK_ENTRY (preview->priv->page_entry), c); - - gtk_widget_set_sensitive (GTK_WIDGET (preview->priv->prev), - (page > 0) && (preview->priv->n_pages > 1)); - gtk_widget_set_sensitive (GTK_WIDGET (preview->priv->next), - (page != (preview->priv->n_pages - 1)) && - (preview->priv->n_pages > 1)); - - if (page != preview->priv->cur_page) - { - preview->priv->cur_page = page; - if (preview->priv->n_pages > 0) - gtk_widget_queue_draw (preview->priv->layout); - } -} - -static void -prev_button_clicked (GtkWidget *button, - GeditPrintPreview *preview) -{ - GdkEvent *event; - gint page; - - event = gtk_get_current_event (); - - if (event->button.state & GDK_SHIFT_MASK) - page = 0; - else - page = preview->priv->cur_page - preview->priv->rows * preview->priv->cols; - - goto_page (preview, MAX (page, 0)); - - gdk_event_free (event); -} - -static void -next_button_clicked (GtkWidget *button, - GeditPrintPreview *preview) -{ - GdkEvent *event; - gint page; - - event = gtk_get_current_event (); - - if (event->button.state & GDK_SHIFT_MASK) - page = preview->priv->n_pages - 1; - else - page = preview->priv->cur_page + preview->priv->rows * preview->priv->cols; - - goto_page (preview, MIN (page, preview->priv->n_pages - 1)); - - gdk_event_free (event); -} - -static void -page_entry_activated (GtkEntry *entry, - GeditPrintPreview *preview) -{ - const gchar *text; - gint page; - - text = gtk_entry_get_text (entry); - - page = CLAMP (atoi (text), 1, preview->priv->n_pages) - 1; - goto_page (preview, page); - - gtk_widget_grab_focus (GTK_WIDGET (preview->priv->layout)); -} - -static void -page_entry_insert_text (GtkEditable *editable, - const gchar *text, - gint length, - gint *position) -{ - gunichar c; - const gchar *p; - const gchar *end; - - p = text; - end = text + length; - - while (p != end) - { - const gchar *next; - next = g_utf8_next_char (p); - - c = g_utf8_get_char (p); - - if (!g_unichar_isdigit (c)) - { - g_signal_stop_emission_by_name (editable, "insert-text"); - break; - } - - p = next; - } -} - -static gboolean -page_entry_focus_out (GtkWidget *widget, - GdkEventFocus *event, - GeditPrintPreview *preview) -{ - const gchar *text; - gint page; - - text = gtk_entry_get_text (GTK_ENTRY (widget)); - page = atoi (text) - 1; - - /* Reset the page number only if really needed */ - if (page != preview->priv->cur_page) - { - gchar *str; - - str = g_strdup_printf ("%d", preview->priv->cur_page + 1); - gtk_entry_set_text (GTK_ENTRY (widget), str); - g_free (str); - } - - return FALSE; -} - -static void -on_1x1_clicked (GtkMenuItem *i, GeditPrintPreview *preview) -{ - set_rows_and_cols (preview, 1, 1); -} - -static void -on_1x2_clicked (GtkMenuItem *i, GeditPrintPreview *preview) -{ - set_rows_and_cols (preview, 1, 2); -} - -static void -on_2x1_clicked (GtkMenuItem *i, GeditPrintPreview *preview) -{ - set_rows_and_cols (preview, 2, 1); -} - -static void -on_2x2_clicked (GtkMenuItem *i, GeditPrintPreview *preview) -{ - set_rows_and_cols (preview, 2, 2); -} - -static void -multi_button_clicked (GtkWidget *button, - GeditPrintPreview *preview) -{ - GtkWidget *m, *i; - - m = gtk_menu_new (); - gtk_widget_show (m); - g_signal_connect (m, - "selection_done", - G_CALLBACK (gtk_widget_destroy), - m); - - i = gtk_menu_item_new_with_label ("1x1"); - gtk_widget_show (i); - gtk_menu_attach (GTK_MENU (m), i, 0, 1, 0, 1); - g_signal_connect (i, "activate", G_CALLBACK (on_1x1_clicked), preview); - - i = gtk_menu_item_new_with_label ("2x1"); - gtk_widget_show (i); - gtk_menu_attach (GTK_MENU (m), i, 0, 1, 1, 2); - g_signal_connect (i, "activate", G_CALLBACK (on_2x1_clicked), preview); - - i = gtk_menu_item_new_with_label ("1x2"); - gtk_widget_show (i); - gtk_menu_attach (GTK_MENU (m), i, 1, 2, 0, 1); - g_signal_connect (i, "activate", G_CALLBACK (on_1x2_clicked), preview); - - i = gtk_menu_item_new_with_label ("2x2"); - gtk_widget_show (i); - gtk_menu_attach (GTK_MENU (m), i, 1, 2, 1, 2); - g_signal_connect (i, "activate", G_CALLBACK (on_2x2_clicked), preview); - - gtk_menu_popup (GTK_MENU (m), - NULL, NULL, NULL, preview, 0, - GDK_CURRENT_TIME); -} - -static void -zoom_one_button_clicked (GtkWidget *button, - GeditPrintPreview *preview) -{ - set_zoom_factor (preview, 1); -} - -static void -zoom_fit_button_clicked (GtkWidget *button, - GeditPrintPreview *preview) -{ - set_zoom_fit_to_size (preview); -} - -static void -zoom_in_button_clicked (GtkWidget *button, - GeditPrintPreview *preview) -{ - zoom_in (preview); -} - -static void -zoom_out_button_clicked (GtkWidget *button, - GeditPrintPreview *preview) -{ - zoom_out (preview); -} - -static void -close_button_clicked (GtkWidget *button, - GeditPrintPreview *preview) -{ - gtk_widget_destroy (GTK_WIDGET (preview)); -} - -static void -create_bar (GeditPrintPreview *preview) -{ - GeditPrintPreviewPrivate *priv; - GtkWidget *toolbar; - GtkToolItem *i; - AtkObject *atko; - GtkWidget *status; - - priv = preview->priv; - - toolbar = gtk_toolbar_new (); - gtk_toolbar_set_style (GTK_TOOLBAR (toolbar), - GTK_TOOLBAR_BOTH_HORIZ); - gtk_widget_show (toolbar); - gtk_box_pack_start (GTK_BOX (preview), - toolbar, - FALSE, FALSE, 0); - - priv->prev = gtk_tool_button_new_from_stock (GTK_STOCK_GO_BACK); - gtk_tool_button_set_label (GTK_TOOL_BUTTON (priv->prev), - "P_revious Page"); - gtk_tool_button_set_use_underline (GTK_TOOL_BUTTON (priv->prev), TRUE); - gtk_tool_item_set_tooltip_text (priv->prev, _("Show the previous page")); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), priv->prev, -1); - g_signal_connect (priv->prev, - "clicked", - G_CALLBACK (prev_button_clicked), - preview); - gtk_widget_show (GTK_WIDGET (priv->prev)); - - priv->next = gtk_tool_button_new_from_stock (GTK_STOCK_GO_FORWARD); - gtk_tool_button_set_label (GTK_TOOL_BUTTON (priv->next), - "_Next Page"); - gtk_tool_button_set_use_underline (GTK_TOOL_BUTTON (priv->next), TRUE); - gtk_tool_item_set_tooltip_text (priv->next, _("Show the next page")); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), priv->next, -1); - g_signal_connect (priv->next, - "clicked", - G_CALLBACK (next_button_clicked), - preview); - gtk_widget_show (GTK_WIDGET (priv->next)); - - i = gtk_separator_tool_item_new (); - gtk_widget_show (GTK_WIDGET (i)); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), i, -1); - - status = gtk_hbox_new (FALSE, 4); - priv->page_entry = gtk_entry_new (); - gtk_entry_set_width_chars (GTK_ENTRY (priv->page_entry), 3); - gtk_entry_set_max_length (GTK_ENTRY (priv->page_entry), 6); - gtk_widget_set_tooltip_text (priv->page_entry, _("Current page (Alt+P)")); - - g_signal_connect (priv->page_entry, - "activate", - G_CALLBACK (page_entry_activated), - preview); - g_signal_connect (priv->page_entry, - "insert-text", - G_CALLBACK (page_entry_insert_text), - NULL); - g_signal_connect (priv->page_entry, - "focus-out-event", - G_CALLBACK (page_entry_focus_out), - preview); - - gtk_box_pack_start (GTK_BOX (status), - priv->page_entry, - FALSE, FALSE, 0); - /* gtk_label_set_mnemonic_widget ((GtkLabel *) l, mp->priv->page_entry); */ - - /* We are displaying 'XXX of XXX'. */ - gtk_box_pack_start (GTK_BOX (status), - /* Translators: the "of" from "1 of 19" in print preview. */ - gtk_label_new (_("of")), - FALSE, FALSE, 0); - - priv->last = gtk_label_new (""); - gtk_box_pack_start (GTK_BOX (status), - priv->last, - FALSE, FALSE, 0); - atko = gtk_widget_get_accessible (priv->last); - atk_object_set_name (atko, _("Page total")); - atk_object_set_description (atko, _("The total number of pages in the document")); - - gtk_widget_show_all (status); - - i = gtk_tool_item_new (); - gtk_container_add (GTK_CONTAINER (i), status); - gtk_widget_show (GTK_WIDGET (i)); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), i, -1); - - i = gtk_separator_tool_item_new (); - gtk_widget_show (GTK_WIDGET (i)); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), i, -1); - - priv->multi = gtk_tool_button_new_from_stock (GTK_STOCK_DND_MULTIPLE); - gtk_tool_button_set_label (GTK_TOOL_BUTTON (priv->multi), - "_Show Multiple Pages"); - gtk_tool_button_set_use_underline (GTK_TOOL_BUTTON (priv->multi), TRUE); - gtk_tool_item_set_tooltip_text (priv->multi, _("Show multiple pages")); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), priv->multi, -1); - g_signal_connect (priv->multi, - "clicked", - G_CALLBACK (multi_button_clicked), - preview); - gtk_widget_show (GTK_WIDGET (priv->multi)); - - i = gtk_separator_tool_item_new (); - gtk_widget_show (GTK_WIDGET (i)); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), i, -1); - - priv->zoom_one = gtk_tool_button_new_from_stock (GTK_STOCK_ZOOM_100); - gtk_tool_item_set_tooltip_text (priv->zoom_one, _("Zoom 1:1")); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), priv->zoom_one, -1); - g_signal_connect (priv->zoom_one, - "clicked", - G_CALLBACK (zoom_one_button_clicked), - preview); - gtk_widget_show (GTK_WIDGET (priv->zoom_one)); - - priv->zoom_fit = gtk_tool_button_new_from_stock (GTK_STOCK_ZOOM_FIT); - gtk_tool_item_set_tooltip_text (priv->zoom_fit, _("Zoom to fit the whole page")); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), priv->zoom_fit, -1); - g_signal_connect (priv->zoom_fit, - "clicked", - G_CALLBACK (zoom_fit_button_clicked), - preview); - gtk_widget_show (GTK_WIDGET (priv->zoom_fit)); - - priv->zoom_in = gtk_tool_button_new_from_stock (GTK_STOCK_ZOOM_IN); - gtk_tool_item_set_tooltip_text (priv->zoom_in, _("Zoom the page in")); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), priv->zoom_in, -1); - g_signal_connect (priv->zoom_in, - "clicked", - G_CALLBACK (zoom_in_button_clicked), - preview); - gtk_widget_show (GTK_WIDGET (priv->zoom_in)); - - priv->zoom_out = gtk_tool_button_new_from_stock (GTK_STOCK_ZOOM_OUT); - gtk_tool_item_set_tooltip_text (priv->zoom_out, _("Zoom the page out")); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), priv->zoom_out, -1); - g_signal_connect (priv->zoom_out, - "clicked", - G_CALLBACK (zoom_out_button_clicked), - preview); - gtk_widget_show (GTK_WIDGET (priv->zoom_out)); - - i = gtk_separator_tool_item_new (); - gtk_widget_show (GTK_WIDGET (i)); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), i, -1); - - i = gtk_tool_button_new (NULL, _("_Close Preview")); - gtk_tool_button_set_use_underline (GTK_TOOL_BUTTON (i), TRUE); - gtk_tool_item_set_is_important (i, TRUE); - gtk_tool_item_set_tooltip_text (i, _("Close print preview")); - g_signal_connect (i, "clicked", - G_CALLBACK (close_button_clicked), preview); - gtk_widget_show (GTK_WIDGET (i)); - gtk_toolbar_insert (GTK_TOOLBAR (toolbar), i, -1); -} - -static gint -get_first_page_displayed (GeditPrintPreview *preview) -{ - GeditPrintPreviewPrivate *priv; - - priv = preview->priv; - - return priv->cur_page - priv->cur_page % (priv->cols * priv->rows); -} - -/* returns the page number (starting from 0) or -1 if no page */ -static gint -get_page_at_coords (GeditPrintPreview *preview, - gint x, - gint y) -{ - GeditPrintPreviewPrivate *priv; - GtkAdjustment *hadj, *vadj; - gint r, c, pg; - - priv = preview->priv; - - if (priv->tile_h <= 0 || priv->tile_h <= 0) - return -1; - - hadj = gtk_layout_get_hadjustment (GTK_LAYOUT (priv->layout)); - vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (priv->layout)); - - x += gtk_adjustment_get_value (hadj); - y += gtk_adjustment_get_value (vadj); - - r = 1 + y / (priv->tile_h); - c = 1 + x / (priv->tile_w); - - if (c > priv->cols) - return -1; - - pg = get_first_page_displayed (preview) - 1; - pg += (r - 1) * priv->cols + c; - - if (pg >= priv->n_pages) - return -1; - - /* FIXME: we could try to be picky and check - * if we actually are inside the page */ - return pg; -} - -static gboolean -preview_layout_query_tooltip (GtkWidget *widget, - gint x, - gint y, - gboolean keyboard_tip, - GtkTooltip *tooltip, - GeditPrintPreview *preview) -{ - gint pg; - gchar *tip; - - pg = get_page_at_coords (preview, x, y); - if (pg < 0) - return FALSE; - - tip = g_strdup_printf (_("Page %d of %d"), pg + 1, preview->priv->n_pages); - gtk_tooltip_set_text (tooltip, tip); - g_free (tip); - - return TRUE; -} - -static gint -preview_layout_key_press (GtkWidget *widget, - GdkEventKey *event, - GeditPrintPreview *preview) -{ - GeditPrintPreviewPrivate *priv; - GtkAdjustment *hadj, *vadj; - double x, y; - guint h, w; - double hlower, hupper, vlower, vupper; - double hpage, vpage; - double hstep, vstep; - gboolean domove = FALSE; - gboolean ret = TRUE; - - priv = preview->priv; - - hadj = gtk_layout_get_hadjustment (GTK_LAYOUT (priv->layout)); - vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (priv->layout)); - - x = gtk_adjustment_get_value (hadj); - y = gtk_adjustment_get_value (vadj); - - g_object_get (hadj, - "lower", &hlower, - "upper", &hupper, - "page-size", &hpage, - NULL); - g_object_get (vadj, - "lower", &vlower, - "upper", &vupper, - "page-size", &vpage, - NULL); - - gtk_layout_get_size (GTK_LAYOUT (priv->layout), &w, &h); - - hstep = 10; - vstep = 10; - - switch (event->keyval) { - case '1': - set_zoom_fit_to_size (preview); - break; - case '+': - case '=': - case GDK_KP_Add: - zoom_in (preview); - break; - case '-': - case '_': - case GDK_KP_Subtract: - zoom_out (preview); - break; - case GDK_KP_Right: - case GDK_Right: - if (event->state & GDK_SHIFT_MASK) - x = hupper - hpage; - else - x = MIN (hupper - hpage, x + hstep); - domove = TRUE; - break; - case GDK_KP_Left: - case GDK_Left: - if (event->state & GDK_SHIFT_MASK) - x = hlower; - else - x = MAX (hlower, x - hstep); - domove = TRUE; - break; - case GDK_KP_Up: - case GDK_Up: - if (event->state & GDK_SHIFT_MASK) - goto page_up; - y = MAX (vlower, y - vstep); - domove = TRUE; - break; - case GDK_KP_Down: - case GDK_Down: - if (event->state & GDK_SHIFT_MASK) - goto page_down; - y = MIN (vupper - vpage, y + vstep); - domove = TRUE; - break; - case GDK_KP_Page_Up: - case GDK_Page_Up: - case GDK_Delete: - case GDK_KP_Delete: - case GDK_BackSpace: - page_up: - if (y <= vlower) - { - if (preview->priv->cur_page > 0) - { - goto_page (preview, preview->priv->cur_page - 1); - y = (vupper - vpage); - } - } - else - { - y = vlower; - } - domove = TRUE; - break; - case GDK_KP_Page_Down: - case GDK_Page_Down: - case ' ': - page_down: - if (y >= (vupper - vpage)) - { - if (preview->priv->cur_page < preview->priv->n_pages - 1) - { - goto_page (preview, preview->priv->cur_page + 1); - y = vlower; - } - } - else - { - y = (vupper - vpage); - } - domove = TRUE; - break; - case GDK_KP_Home: - case GDK_Home: - goto_page (preview, 0); - y = 0; - domove = TRUE; - break; - case GDK_KP_End: - case GDK_End: - goto_page (preview, preview->priv->n_pages - 1); - y = 0; - domove = TRUE; - break; - case GDK_Escape: - gtk_widget_destroy (GTK_WIDGET (preview)); - break; - case 'c': - if (event->state & GDK_MOD1_MASK) - { - gtk_widget_destroy (GTK_WIDGET (preview)); - } - break; - case 'p': - if (event->state & GDK_MOD1_MASK) - { - gtk_widget_grab_focus (preview->priv->page_entry); - } - break; - default: - /* by default do not stop the default handler */ - ret = FALSE; - } - - if (domove) - { - gtk_adjustment_set_value (hadj, x); - gtk_adjustment_set_value (vadj, y); - - gtk_adjustment_value_changed (hadj); - gtk_adjustment_value_changed (vadj); - } - - return ret; -} - -static void -create_preview_layout (GeditPrintPreview *preview) -{ - GeditPrintPreviewPrivate *priv; - AtkObject *atko; - - priv = preview->priv; - - priv->layout = gtk_layout_new (NULL, NULL); -// gtk_widget_set_double_buffered (priv->layout, FALSE); - - atko = gtk_widget_get_accessible (GTK_WIDGET (priv->layout)); - atk_object_set_name (atko, _("Page Preview")); - atk_object_set_description (atko, _("The preview of a page in the document to be printed")); - - gtk_widget_add_events (priv->layout, - GDK_POINTER_MOTION_MASK | - GDK_BUTTON_PRESS_MASK | - GDK_KEY_PRESS_MASK); - - GTK_WIDGET_SET_FLAGS (priv->layout, GTK_CAN_FOCUS); - - g_signal_connect (priv->layout, - "key-press-event", - G_CALLBACK (preview_layout_key_press), - preview); - - g_object_set (priv->layout, "has-tooltip", TRUE, NULL); - g_signal_connect (priv->layout, - "query-tooltip", - G_CALLBACK (preview_layout_query_tooltip), - preview); - - priv->scrolled_window = gtk_scrolled_window_new (NULL, NULL); - gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), - GTK_POLICY_AUTOMATIC, - GTK_POLICY_AUTOMATIC); - - gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->layout); - gtk_box_pack_end (GTK_BOX (preview), - priv->scrolled_window, - TRUE, TRUE, 0); - - gtk_widget_show_all (GTK_WIDGET (priv->scrolled_window)); - gtk_widget_grab_focus (GTK_WIDGET (priv->layout)); -} - -static void -gedit_print_preview_init (GeditPrintPreview *preview) -{ - GeditPrintPreviewPrivate *priv; - - priv = G_TYPE_INSTANCE_GET_PRIVATE (preview, - GEDIT_TYPE_PRINT_PREVIEW, - GeditPrintPreviewPrivate); - - preview->priv = priv; - - priv->operation = NULL; - priv->context = NULL; - priv->gtk_preview = NULL; - - create_bar (preview); - create_preview_layout (preview); - - // FIXME - priv->cur_page = 0; - priv->paper_w = 0; - priv->paper_h = 0; - priv->dpi = PRINTER_DPI; - priv->scale = 1.0; - priv->rows = 1; - priv->cols = 1; -} - -static void -draw_page_content (cairo_t *cr, - gint page_number, - GeditPrintPreview *preview) -{ - /* scale to the desired size */ - cairo_scale (cr, preview->priv->scale, preview->priv->scale); - - /* rotate acording to page orientation if needed */ - if ((preview->priv->orientation == GTK_PAGE_ORIENTATION_LANDSCAPE) || - (preview->priv->orientation == GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE)) - { - cairo_matrix_t matrix; - - cairo_matrix_init (&matrix, - 0, -1, - 1, 0, - 0, get_paper_width (preview)); - cairo_transform (cr, &matrix); - } - - gtk_print_context_set_cairo_context (preview->priv->context, - cr, - preview->priv->dpi, - preview->priv->dpi); - - gtk_print_operation_preview_render_page (preview->priv->gtk_preview, - page_number); -} - -/* For the frame, we scale and rotate manually, since - * the line width should not depend on the zoom and - * the drop shadow should be on the bottom right no matter - * the orientation */ -static void -draw_page_frame (cairo_t *cr, - GeditPrintPreview *preview) -{ - double w, h; - - w = get_paper_width (preview); - h = get_paper_height (preview); - - if ((preview->priv->orientation == GTK_PAGE_ORIENTATION_LANDSCAPE) || - (preview->priv->orientation == GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE)) - { - double tmp; - - tmp = w; - w = h; - h = tmp; - } - - w *= preview->priv->scale; - h *= preview->priv->scale; - - /* drop shadow */ - cairo_set_source_rgb (cr, 0, 0, 0); - cairo_rectangle (cr, - PAGE_SHADOW_OFFSET, PAGE_SHADOW_OFFSET, - w, h); - cairo_fill (cr); - - /* page frame */ - cairo_set_source_rgb (cr, 1, 1, 1); - cairo_rectangle (cr, - 0, 0, - w, h); - cairo_fill_preserve (cr); - cairo_set_source_rgb (cr, 0, 0, 0); - cairo_set_line_width (cr, 1); - cairo_stroke (cr); -} - -static void -draw_page (cairo_t *cr, - double x, - double y, - gint page_number, - GeditPrintPreview *preview) -{ - cairo_save (cr); - - /* move to the page top left corner */ - cairo_translate (cr, x + PAGE_PAD, y + PAGE_PAD); - - draw_page_frame (cr, preview); - draw_page_content (cr, page_number, preview); - - cairo_restore (cr); -} - -static gboolean -preview_expose (GtkWidget *widget, - GdkEventExpose *event, - GeditPrintPreview *preview) -{ - GeditPrintPreviewPrivate *priv; - GdkWindow *bin_window; - cairo_t *cr; - gint pg; - gint i, j; - - priv = preview->priv; - - bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (priv->layout)); - if (event->window != bin_window) - return FALSE; - - cr = gdk_cairo_create (bin_window); - - gdk_cairo_rectangle (cr, &event->area); - cairo_clip (cr); - - /* get the first page to display */ - pg = get_first_page_displayed (preview); - - for (i = 0; i < priv->cols; ++i) - { - for (j = 0; j < priv->rows; ++j) - { - if (!gtk_print_operation_preview_is_selected (priv->gtk_preview, - pg)) - { - continue; - } - - if (pg == priv->n_pages) - break; - - draw_page (cr, - j * priv->tile_w, - i * priv->tile_h, - pg, - preview); - - ++pg; - } - } - cairo_destroy (cr); - - return TRUE; -} - -static double -get_screen_dpi (GeditPrintPreview *preview) -{ - GdkScreen *screen; - double dpi; - - screen = gtk_widget_get_screen (GTK_WIDGET (preview)); - - dpi = gdk_screen_get_resolution (screen); - if (dpi < 30. || 600. < dpi) - { - g_warning ("Invalid the x-resolution for the screen, assuming 96dpi"); - dpi = 96.; - } - - return dpi; -} - -static void -set_n_pages (GeditPrintPreview *preview, - gint n_pages) -{ - gchar *str; - - preview->priv->n_pages = n_pages; - - // FIXME: count the visible pages - - str = g_strdup_printf ("%d", n_pages); - gtk_label_set_markup (GTK_LABEL (preview->priv->last), str); - g_free (str); -} - -static void -preview_ready (GtkPrintOperationPreview *gtk_preview, - GtkPrintContext *context, - GeditPrintPreview *preview) -{ - gint n_pages; - - g_object_get (preview->priv->operation, "n-pages", &n_pages, NULL); - set_n_pages (preview, n_pages); - goto_page (preview, 0); - - /* figure out the dpi */ - preview->priv->dpi = get_screen_dpi (preview); - - set_zoom_factor (preview, 1.0); - - /* let the default gtklayout handler clear the background */ - g_signal_connect_after (preview->priv->layout, - "expose-event", - G_CALLBACK (preview_expose), - preview); - - gtk_widget_queue_draw (preview->priv->layout); -} - -static void -update_paper_size (GeditPrintPreview *preview, - GtkPageSetup *page_setup) -{ - GtkPaperSize *paper_size; - - paper_size = gtk_page_setup_get_paper_size (page_setup); - - preview->priv->paper_w = gtk_paper_size_get_width (paper_size, GTK_UNIT_INCH); - preview->priv->paper_h = gtk_paper_size_get_height (paper_size, GTK_UNIT_INCH); - - preview->priv->orientation = gtk_page_setup_get_orientation (page_setup); -} - -static void -preview_got_page_size (GtkPrintOperationPreview *gtk_preview, - GtkPrintContext *context, - GtkPageSetup *page_setup, - GeditPrintPreview *preview) -{ - update_paper_size (preview, page_setup); -} - -/* HACK: we need a dummy surface to paginate... can we use something simpler? */ - -static cairo_status_t -dummy_write_func (G_GNUC_UNUSED gpointer closure, - G_GNUC_UNUSED const guchar *data, - G_GNUC_UNUSED guint length) -{ - return CAIRO_STATUS_SUCCESS; -} - -#define PRINTER_DPI (72.) - -static cairo_surface_t * -create_preview_surface_platform (GtkPaperSize *paper_size, - double *dpi_x, - double *dpi_y) -{ - double width, height; - cairo_surface_t *sf; - - width = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS); - height = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS); - - *dpi_x = *dpi_y = PRINTER_DPI; - - sf = cairo_pdf_surface_create_for_stream (dummy_write_func, NULL, - width, height); - return sf; -} - -static cairo_surface_t * -create_preview_surface (GeditPrintPreview *preview, - double *dpi_x, - double *dpi_y) -{ - GtkPageSetup *page_setup; - GtkPaperSize *paper_size; - - page_setup = gtk_print_context_get_page_setup (preview->priv->context); - /* gtk_page_setup_get_paper_size swaps width and height for landscape */ - paper_size = gtk_page_setup_get_paper_size (page_setup); - - return create_preview_surface_platform (paper_size, dpi_x, dpi_y); -} - -GtkWidget * -gedit_print_preview_new (GtkPrintOperation *op, - GtkPrintOperationPreview *gtk_preview, - GtkPrintContext *context) -{ - GeditPrintPreview *preview; - GtkPageSetup *page_setup; - cairo_surface_t *surface; - cairo_t *cr; - double dpi_x, dpi_y; - - g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), NULL); - g_return_val_if_fail (GTK_IS_PRINT_OPERATION_PREVIEW (gtk_preview), NULL); - - preview = g_object_new (GEDIT_TYPE_PRINT_PREVIEW, NULL); - - preview->priv->operation = g_object_ref (op); - preview->priv->gtk_preview = g_object_ref (gtk_preview); - preview->priv->context = g_object_ref (context); - - /* FIXME: is this legal?? */ - gtk_print_operation_set_unit (op, GTK_UNIT_POINTS); - - g_signal_connect (gtk_preview, "ready", - G_CALLBACK (preview_ready), preview); - g_signal_connect (gtk_preview, "got-page-size", - G_CALLBACK (preview_got_page_size), preview); - - page_setup = gtk_print_context_get_page_setup (preview->priv->context); - update_paper_size (preview, page_setup); - - /* FIXME: we need a cr to paginate... but we can't get the drawing - * area surface because it's not there yet... for now I create - * a dummy pdf surface */ - - surface = create_preview_surface (preview, &dpi_x, &dpi_y); - cr = cairo_create (surface); - gtk_print_context_set_cairo_context (context, cr, dpi_x, dpi_y); - cairo_destroy (cr); - cairo_surface_destroy (surface); - - return GTK_WIDGET (preview); -} - |