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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
/* this file is part of atril, a mate document viewer
*
* Copyright (C) 2004 Red Hat, Inc
*
* Atril 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.
*
* Atril 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 (ATRIL_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;
GList *selections;
EvSelectionStyle style;
} SelectionInfo;
/* Information for handling images DND */
typedef struct {
gboolean in_drag;
GdkPoint start;
EvImage *image;
} ImageDNDInfo;
typedef enum {
EV_PAN_ACTION_NONE,
EV_PAN_ACTION_NEXT,
EV_PAN_ACTION_PREV
} EvPanAction;
/* 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;
gboolean dual_even_left;
gdouble *height_to_page;
gdouble *dual_height_to_page;
} EvHeightToPageCache;
struct _EvView {
GtkContainer layout;
/* Container */
GList *children;
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;
/* GtkScrollablePolicy needs to be checked when
* driving the scrollable adjustment values */
guint hscroll_policy : 1;
guint vscroll_policy : 1;
gint scroll_x;
gint scroll_y;
/* Delta sum for emulating normal scrolling */
gdouble total_delta;
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_even_left;
gboolean fullscreen;
EvSizingMode sizing_mode;
EvPageLayout page_layout;
GtkWidget *loading_window;
guint loading_timeout;
/* Common for button press handling */
int pressed_button;
/* Key bindings propagation */
gboolean key_binding_handled;
/* 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;
SelectionInfo selection_info;
/* Copy link address selection */
EvLinkAction *link_selected;
/* Image DND */
ImageDNDInfo image_dnd_info;
/* Annotations */
GList *window_children;
EvViewWindowChild *window_child_focus;
gboolean adding_annot;
EvAnnotationType adding_annot_type;
/* Focus */
EvMapping *focused_element;
guint focused_element_page;
/* Synctex */
EvMapping *synctex_result;
/* Accessibility */
AtkObject *accessible;
/* Caret navigation */
gboolean caret_enabled;
gint cursor_offset;
gint cursor_page;
gdouble cursor_line_offset;
gboolean cursor_visible;
guint cursor_blink_timeout_id;
guint cursor_blink_time;
/* Gestures */
GtkGesture *pan_gesture;
GtkGesture *zoom_gesture;
gdouble prev_zoom_gesture_scale;
EvPanAction pan_action;
/* Current zoom center */
gdouble zoom_center_x;
gdouble zoom_center_y;
};
struct _EvViewClass {
GtkContainerClass parent_class;
void (*scroll) (EvView *view,
GtkScrollType scroll,
GtkOrientation orientation);
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 (*annot_removed) (EvView *view,
EvAnnotation *annot);
void (*layers_changed) (EvView *view);
gboolean (*move_cursor) (EvView *view,
GtkMovementStep step,
gint count,
gboolean extend_selection);
};
void _get_page_size_for_scale_and_rotation (EvDocument *document,
gint page,
gdouble scale,
gint rotation,
gint *page_width,
gint *page_height);
void _ev_view_transform_view_point_to_doc_point (EvView *view,
GdkPoint *view_point,
GdkRectangle *page_area,
double *doc_point_x,
double *doc_point_y);
void _ev_view_transform_view_rect_to_doc_rect (EvView *view,
GdkRectangle *view_rect,
GdkRectangle *page_area,
EvRectangle *doc_rect);
void _ev_view_transform_doc_point_to_view_point (EvView *view,
int page,
EvPoint *doc_point,
GdkPoint *view_point);
void _ev_view_transform_doc_rect_to_view_rect (EvView *view,
int page,
EvRectangle *doc_rect,
GdkRectangle *view_rect);
void _ev_view_get_selection_colors (EvView *view,
GdkRGBA *bg_color,
GdkRGBA *fg_color);
gint _ev_view_get_caret_cursor_offset_at_doc_point (EvView *view,
gint page,
gdouble doc_x,
gdouble doc_y);
void _ev_view_set_focused_element (EvView *view,
EvMapping *element_mapping,
gint page);
void _ev_view_clear_selection (EvView *view);
void _ev_view_set_selection (EvView *view,
GdkPoint *start_point,
GdkPoint *end_point);
#endif /* __EV_VIEW_PRIVATE_H__ */
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