libview/ev-view-private.h

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* this file is part of evince, a gnome document viewer
   3  *
   4  *  Copyright (C) 2004 Red Hat, Inc
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #if !defined (EVINCE_COMPILATION)
  22 #error "This is a private header."
  23 #endif
  24
  25 #ifndef __EV_VIEW_PRIVATE_H__
  26 #define __EV_VIEW_PRIVATE_H__
  27
  28 #include "ev-view.h"
  29 #include "ev-document-model.h"
  30 #include "ev-pixbuf-cache.h"
  31 #include "ev-page-cache.h"
  32 #include "ev-jobs.h"
  33 #include "ev-image.h"
  34 #include "ev-form-field.h"
  35 #include "ev-selection.h"
  36 #include "ev-transition-animation.h"
  37 #include "ev-view-cursor.h"
  38
  39 #define DRAG_HISTORY 10
  40
  41 /* Information for middle clicking and moving around the doc */
  42 typedef struct {
  43         gboolean in_drag;
  44         GdkPoint start;
  45         gdouble hadj;
  46         gdouble vadj;
  47         guint drag_timeout_id;
  48         guint release_timeout_id;
  49         GdkPoint buffer[DRAG_HISTORY];
  50         GdkPoint momentum;
  51 } DragInfo;
  52
  53 /* Autoscrolling */
  54 typedef struct {
  55         gboolean autoscrolling;
  56         guint last_y;
  57         guint start_y;
  58         guint timeout_id;
  59 } AutoScrollInfo;
  60
  61 /* Information for handling selection */
  62 typedef struct {
  63         gboolean in_drag;
  64         GdkPoint start;
  65         gboolean in_selection;
  66         GList *selections;
  67         EvSelectionStyle style;
  68 } SelectionInfo;
  69
  70 /* Information for handling images DND */
  71 typedef struct {
  72         gboolean in_drag;
  73         GdkPoint start;
  74         EvImage *image;
  75 } ImageDNDInfo;
  76
  77 /* Annotation popup windows */
  78 typedef struct {
  79         GtkWidget *window;
  80         guint      page;
  81
  82         /* Current position */
  83         gint       x;
  84         gint       y;
  85
  86         /* EvView root position */
  87         gint       parent_x;
  88         gint       parent_y;
  89
  90         /* Document coords */
  91         gdouble    orig_x;
  92         gdouble    orig_y;
  93
  94         gboolean   visible;
  95         gboolean   moved;
  96 } EvViewWindowChild;
  97
  98 typedef enum {
  99         SCROLL_TO_KEEP_POSITION,
 100         SCROLL_TO_PAGE_POSITION,
 101         SCROLL_TO_CENTER,
 102         SCROLL_TO_FIND_LOCATION,
 103 } PendingScroll;
 104
 105 typedef enum {
 106         EV_PRESENTATION_NORMAL,
 107         EV_PRESENTATION_BLACK,
 108         EV_PRESENTATION_WHITE,
 109         EV_PRESENTATION_END
 110 } EvPresentationState;
 111
 112 typedef struct _EvHeightToPageCache {
 113         gint rotation;
 114         gdouble *height_to_page;
 115         gdouble *dual_height_to_page;
 116 } EvHeightToPageCache;
 117
 118 struct _EvView {
 119         GtkLayout layout;
 120
 121         EvDocument *document;
 122
 123         /* Find */
 124         GList **find_pages;
 125         gint find_result;
 126         gboolean jump_to_find_result;
 127         gboolean highlight_find_results;
 128
 129         EvDocumentModel *model;
 130         EvPixbufCache *pixbuf_cache;
 131         EvPageCache *page_cache;
 132         EvHeightToPageCache *height_to_page_cache;
 133         EvViewCursor cursor;
 134         EvJobRender *current_job;
 135
 136         /* Scrolling */
 137         GtkAdjustment *hadjustment;
 138         GtkAdjustment *vadjustment;
 139
 140         gint scroll_x;
 141         gint scroll_y;
 142
 143         PendingScroll pending_scroll;
 144         gboolean      pending_resize;
 145         EvPoint       pending_point;
 146
 147         /* Current geometry */
 148
 149         gint start_page;
 150         gint end_page;
 151         gint current_page;
 152
 153         gint rotation;
 154         gdouble scale;
 155         gint spacing;
 156
 157         gboolean loading;
 158         gboolean continuous;
 159         gboolean dual_page;
 160         gboolean fullscreen;
 161         gboolean presentation;
 162         EvSizingMode sizing_mode;
 163         cairo_surface_t *loading_text;
 164
 165         /* Presentation */
 166         EvPresentationState presentation_state;
 167         EvSizingMode sizing_mode_saved;
 168         double scale_saved;
 169         guint  trans_timeout_id;
 170
 171         /* Common for button press handling */
 172         int pressed_button;
 173
 174         /* Information for middle clicking and dragging around. */
 175         DragInfo drag_info;
 176
 177         /* Autoscrolling */
 178         AutoScrollInfo scroll_info;
 179
 180         /* Selection */
 181         GdkPoint motion;
 182         guint selection_update_id;
 183         guint selection_scroll_id;
 184
 185         EvViewSelectionMode selection_mode;
 186         SelectionInfo selection_info;
 187
 188         /* Copy link address selection */
 189         EvLinkAction *link_selected;
 190
 191         /* Image DND */
 192         ImageDNDInfo image_dnd_info;
 193
 194         /* Goto Popup */
 195         GtkWidget *goto_window;
 196         GtkWidget *goto_entry;
 197
 198         EvTransitionAnimation *animation;
 199
 200         /* Annotations */
 201         GList             *window_children;
 202         EvViewWindowChild *window_child_focus;
 203 };
 204
 205 struct _EvViewClass {
 206         GtkLayoutClass parent_class;
 207
 208         void    (*binding_activated)      (EvView         *view,
 209                                            GtkScrollType   scroll,
 210                                            gboolean        horizontal);
 211         void    (*handle_link)            (EvView         *view,
 212                                            EvLink         *link);
 213         void    (*external_link)          (EvView         *view,
 214                                            EvLinkAction   *action);
 215         void    (*popup_menu)             (EvView         *view,
 216                                            EvLink         *link);
 217 };
 218
 219 void _get_page_size_for_scale_and_rotation (EvDocument *document,
 220                                             gint        page,
 221                                             gdouble     scale,
 222                                             gint        rotation,
 223                                             gint       *page_width,
 224                                             gint       *page_height);
 225
 226 #endif  /* __EV_VIEW_PRIVATE_H__ */
 227