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-jobs.h"
  32 #include "ev-image.h"
  33 #include "ev-form-field.h"
  34 #include "ev-selection.h"
  35 #include "ev-transition-animation.h"
  36
  37 #define DRAG_HISTORY 10
  38
  39 /* Information for middle clicking and moving around the doc */
  40 typedef struct {
  41         gboolean in_drag;
  42         GdkPoint start;
  43         gdouble hadj;
  44         gdouble vadj;
  45         guint drag_timeout_id;
  46         guint release_timeout_id;
  47         GdkPoint buffer[DRAG_HISTORY];
  48         GdkPoint momentum;
  49 } DragInfo;
  50
  51 /* Autoscrolling */
  52 typedef struct {
  53         gboolean autoscrolling;
  54         guint last_y;
  55         guint start_y;
  56         guint timeout_id;
  57 } AutoScrollInfo;
  58
  59 /* Information for handling selection */
  60 typedef struct {
  61         gboolean in_drag;
  62         GdkPoint start;
  63         gboolean in_selection;
  64         GList *selections;
  65         EvSelectionStyle style;
  66 } SelectionInfo;
  67
  68 /* Information for handling images DND */
  69 typedef struct {
  70         gboolean in_drag;
  71         GdkPoint start;
  72         EvImage *image;
  73 } ImageDNDInfo;
  74
  75 /* Annotation popup windows */
  76 typedef struct {
  77         GtkWidget *window;
  78         guint      page;
  79
  80         /* Current position */
  81         gint       x;
  82         gint       y;
  83
  84         /* EvView root position */
  85         gint       parent_x;
  86         gint       parent_y;
  87
  88         /* Document coords */
  89         gdouble    orig_x;
  90         gdouble    orig_y;
  91
  92         gboolean   visible;
  93         gboolean   moved;
  94 } EvViewWindowChild;
  95
  96 typedef enum {
  97         SCROLL_TO_KEEP_POSITION,
  98         SCROLL_TO_PAGE_POSITION,
  99         SCROLL_TO_CENTER,
 100         SCROLL_TO_FIND_LOCATION,
 101 } PendingScroll;
 102
 103 typedef enum {
 104         EV_VIEW_CURSOR_NORMAL,
 105         EV_VIEW_CURSOR_IBEAM,
 106         EV_VIEW_CURSOR_LINK,
 107         EV_VIEW_CURSOR_WAIT,
 108         EV_VIEW_CURSOR_HIDDEN,
 109         EV_VIEW_CURSOR_DRAG,
 110         EV_VIEW_CURSOR_AUTOSCROLL,
 111 } EvViewCursor;
 112
 113 typedef enum {
 114         EV_PRESENTATION_NORMAL,
 115         EV_PRESENTATION_BLACK,
 116         EV_PRESENTATION_WHITE,
 117         EV_PRESENTATION_END
 118 } EvPresentationState;
 119
 120 typedef struct _EvHeightToPageCache {
 121         gint rotation;
 122         gdouble *height_to_page;
 123         gdouble *dual_height_to_page;
 124 } EvHeightToPageCache;
 125
 126 struct _EvView {
 127         GtkLayout layout;
 128
 129         EvDocument *document;
 130
 131         /* Find */
 132         GList **find_pages;
 133         gint find_result;
 134         gboolean jump_to_find_result;
 135         gboolean highlight_find_results;
 136
 137         EvDocumentModel *model;
 138         EvPageCache *page_cache;
 139         EvPixbufCache *pixbuf_cache;
 140         EvHeightToPageCache *height_to_page_cache;
 141         EvViewCursor cursor;
 142         EvJobRender *current_job;
 143
 144         /* Scrolling */
 145         GtkAdjustment *hadjustment;
 146         GtkAdjustment *vadjustment;
 147
 148         gint scroll_x;
 149         gint scroll_y;
 150
 151         PendingScroll pending_scroll;
 152         gboolean      pending_resize;
 153         EvPoint       pending_point;
 154
 155         /* Current geometry */
 156
 157         gint start_page;
 158         gint end_page;
 159         gint current_page;
 160
 161         gint rotation;
 162         gdouble scale;
 163         gint spacing;
 164         gdouble dpi;
 165
 166         gboolean loading;
 167         gboolean continuous;
 168         gboolean dual_page;
 169         gboolean fullscreen;
 170         gboolean presentation;
 171         EvSizingMode sizing_mode;
 172         cairo_surface_t *loading_text;
 173
 174         /* Presentation */
 175         EvPresentationState presentation_state;
 176         EvSizingMode sizing_mode_saved;
 177         double scale_saved;
 178         guint  trans_timeout_id;
 179
 180         /* Common for button press handling */
 181         int pressed_button;
 182
 183         /* Information for middle clicking and dragging around. */
 184         DragInfo drag_info;
 185
 186         /* Autoscrolling */
 187         AutoScrollInfo scroll_info;
 188
 189         /* Selection */
 190         GdkPoint motion;
 191         guint selection_update_id;
 192         guint selection_scroll_id;
 193
 194         EvViewSelectionMode selection_mode;
 195         SelectionInfo selection_info;
 196
 197         /* Copy link address selection */
 198         EvLinkAction *link_selected;
 199
 200         /* Image DND */
 201         ImageDNDInfo image_dnd_info;
 202
 203         /* Goto Popup */
 204         GtkWidget *goto_window;
 205         GtkWidget *goto_entry;
 206
 207         EvTransitionAnimation *animation;
 208
 209         /* Annotations */
 210         GList             *window_children;
 211         EvViewWindowChild *window_child_focus;
 212 };
 213
 214 struct _EvViewClass {
 215         GtkLayoutClass parent_class;
 216
 217         void    (*binding_activated)      (EvView         *view,
 218                                            GtkScrollType   scroll,
 219                                            gboolean        horizontal);
 220         void    (*handle_link)            (EvView         *view,
 221                                            EvLink         *link);
 222         void    (*external_link)          (EvView         *view,
 223                                            EvLinkAction   *action);
 224         void    (*popup_menu)             (EvView         *view,
 225                                            EvLink         *link);
 226 };
 227
 228 void _get_page_size_for_scale_and_rotation (EvDocument *document,
 229                                             gint        page,
 230                                             gdouble     scale,
 231                                             gint        rotation,
 232                                             gint       *page_width,
 233                                             gint       *page_height);
 234
 235 #endif  /* __EV_VIEW_PRIVATE_H__ */
 236