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[libview] Split EvPixbufCache into dynamic and static data
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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
38 #define DRAG_HISTORY 10
39
40 /* Information for middle clicking and moving around the doc */
41 typedef struct {
42         gboolean in_drag;
43         GdkPoint start;
44         gdouble hadj;
45         gdouble vadj;
46         guint drag_timeout_id;
47         guint release_timeout_id;
48         GdkPoint buffer[DRAG_HISTORY];
49         GdkPoint momentum;
50 } DragInfo;
51
52 /* Autoscrolling */
53 typedef struct {
54         gboolean autoscrolling;
55         guint last_y;
56         guint start_y;
57         guint timeout_id;       
58 } AutoScrollInfo;
59
60 /* Information for handling selection */
61 typedef struct {
62         gboolean in_drag;
63         GdkPoint start;
64         gboolean in_selection;
65         GList *selections;
66         EvSelectionStyle style;
67 } SelectionInfo;
68
69 /* Information for handling images DND */
70 typedef struct {
71         gboolean in_drag;
72         GdkPoint start;
73         EvImage *image;
74 } ImageDNDInfo;
75
76 /* Annotation popup windows */
77 typedef struct {
78         GtkWidget *window;
79         guint      page;
80
81         /* Current position */
82         gint       x;
83         gint       y;
84
85         /* EvView root position */
86         gint       parent_x;
87         gint       parent_y;
88
89         /* Document coords */
90         gdouble    orig_x;
91         gdouble    orig_y;
92
93         gboolean   visible;
94         gboolean   moved;
95 } EvViewWindowChild;
96
97 typedef enum {
98         SCROLL_TO_KEEP_POSITION,
99         SCROLL_TO_PAGE_POSITION,
100         SCROLL_TO_CENTER,
101         SCROLL_TO_FIND_LOCATION,
102 } PendingScroll;
103
104 typedef enum {
105         EV_VIEW_CURSOR_NORMAL,
106         EV_VIEW_CURSOR_IBEAM,
107         EV_VIEW_CURSOR_LINK,
108         EV_VIEW_CURSOR_WAIT,
109         EV_VIEW_CURSOR_HIDDEN,
110         EV_VIEW_CURSOR_DRAG,
111         EV_VIEW_CURSOR_AUTOSCROLL,
112 } EvViewCursor;
113
114 typedef enum {
115         EV_PRESENTATION_NORMAL,
116         EV_PRESENTATION_BLACK,
117         EV_PRESENTATION_WHITE,
118         EV_PRESENTATION_END
119 } EvPresentationState;
120
121 typedef struct _EvHeightToPageCache {
122         gint rotation;
123         gdouble *height_to_page;
124         gdouble *dual_height_to_page;
125 } EvHeightToPageCache;
126
127 struct _EvView {
128         GtkLayout layout;
129
130         EvDocument *document;
131
132         /* Find */
133         GList **find_pages;
134         gint find_result;
135         gboolean jump_to_find_result;
136         gboolean highlight_find_results;
137
138         EvDocumentModel *model;
139         EvPixbufCache *pixbuf_cache;
140         EvPageCache *page_cache;
141         EvHeightToPageCache *height_to_page_cache;
142         EvViewCursor cursor;
143         EvJobRender *current_job;
144
145         /* Scrolling */
146         GtkAdjustment *hadjustment;
147         GtkAdjustment *vadjustment;
148
149         gint scroll_x;
150         gint scroll_y;  
151
152         PendingScroll pending_scroll;
153         gboolean      pending_resize;
154         EvPoint       pending_point;
155
156         /* Current geometry */
157     
158         gint start_page;
159         gint end_page;
160         gint current_page;
161
162         gint rotation;
163         gdouble scale;
164         gint spacing;
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