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- Committer: Bazaar Package Importer
- Author(s): Sebastien Bacher
- Date: 2009-01-19 10:39:43 UTC
- mto: (1.6.1 upstream)
- mto: This revision was merged to the branch mainline in revision 70.
- Revision ID: james.westby@ubuntu.com-20090119103943-dhe56g9rmuq7khys
Tags: upstream-2.25.5
Import upstream version 2.25.5
- files added:
- help/reference/tmpl/ev-document-type-builtins.sgml
- libview
- files removed:
- libdocument/ev-backend-marshal.c
- files modified:
- ChangeLog
added
removed
libview/ev-view.c
1
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
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/* this file is part of evince, a gnome document viewer
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*
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* Copyright (C) 2004 Red Hat, Inc
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*
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* Evince is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* 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.
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*
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* You should have received a copy of the GNU General Public License
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* 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
#include "config.h"
22
23
#include <stdlib.h>
24
#include <math.h>
25
#include <string.h>
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27
#include <glib/gi18n.h>
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#include <gtk/gtk.h>
29
#include <gdk/gdkkeysyms.h>
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31
#include "ev-document-forms.h"
32
#include "ev-document-images.h"
33
#include "ev-document-links.h"
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#include "ev-document-misc.h"
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#include "ev-document-transition.h"
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#include "ev-page-cache.h"
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#include "ev-pixbuf-cache.h"
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#include "ev-transition-animation.h"
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#include "ev-view-marshal.h"
40
#include "ev-view.h"
41
#include "ev-view-accessible.h"
42
#include "ev-view-private.h"
43
44
#define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
45
#define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
46
#define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
47
48
enum {
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PROP_0,
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PROP_CONTINUOUS,
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PROP_DUAL_PAGE,
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PROP_FULLSCREEN,
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PROP_PRESENTATION,
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PROP_SIZING_MODE,
55
PROP_ZOOM,
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PROP_ROTATION,
57
PROP_HAS_SELECTION,
58
};
59
60
enum {
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SIGNAL_BINDING_ACTIVATED,
62
SIGNAL_ZOOM_INVALID,
63
SIGNAL_HANDLE_LINK,
64
SIGNAL_EXTERNAL_LINK,
65
SIGNAL_POPUP_MENU,
66
N_SIGNALS,
67
};
68
69
enum {
70
TARGET_DND_URI,
71
TARGET_DND_TEXT,
72
TARGET_DND_IMAGE
73
};
74
75
static guint signals[N_SIGNALS];
76
77
typedef enum {
78
EV_VIEW_FIND_NEXT,
79
EV_VIEW_FIND_PREV
80
} EvViewFindDirection;
81
82
#define ZOOM_IN_FACTOR 1.2
83
#define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
84
85
#define MIN_SCALE 0.05409
86
#define MAX_SCALE 4.0
87
88
#define SCROLL_TIME 150
89
90
/*** Scrolling ***/
91
static void scroll_to_current_page (EvView *view,
92
GtkOrientation orientation);
93
static void ev_view_set_scroll_adjustments (GtkLayout *layout,
94
GtkAdjustment *hadjustment,
95
GtkAdjustment *vadjustment);
96
static void view_update_range_and_current_page (EvView *view);
97
static void set_scroll_adjustment (EvView *view,
98
GtkOrientation orientation,
99
GtkAdjustment *adjustment);
100
static void add_scroll_binding_keypad (GtkBindingSet *binding_set,
101
guint keyval,
102
GdkModifierType modifiers,
103
GtkScrollType scroll,
104
gboolean horizontal);
105
static void ensure_rectangle_is_visible (EvView *view,
106
GdkRectangle *rect);
107
108
/*** Geometry computations ***/
109
static void compute_border (EvView *view,
110
int width,
111
int height,
112
GtkBorder *border);
113
static void get_page_y_offset (EvView *view,
114
int page,
115
double zoom,
116
int *y_offset);
117
static gboolean get_page_extents (EvView *view,
118
gint page,
119
GdkRectangle *page_area,
120
GtkBorder *border);
121
static void view_rect_to_doc_rect (EvView *view,
122
GdkRectangle *view_rect,
123
GdkRectangle *page_area,
124
EvRectangle *doc_rect);
125
static void doc_rect_to_view_rect (EvView *view,
126
int page,
127
EvRectangle *doc_rect,
128
GdkRectangle *view_rect);
129
static void find_page_at_location (EvView *view,
130
gdouble x,
131
gdouble y,
132
gint *page,
133
gint *x_offset,
134
gint *y_offset);
135
static gboolean doc_point_to_view_point (EvView *view,
136
int page,
137
EvPoint *doc_point,
138
GdkPoint *view_point);
139
/*** Hyperrefs ***/
140
static EvLink * ev_view_get_link_at_location (EvView *view,
141
gdouble x,
142
gdouble y);
143
static char* tip_from_link (EvView *view,
144
EvLink *link);
145
/*** Forms ***/
146
static EvFormField *ev_view_get_form_field_at_location (EvView *view,
147
gdouble x,
148
gdouble y);
149
150
/*** GtkWidget implementation ***/
151
static void ev_view_size_request_continuous_dual_page (EvView *view,
152
GtkRequisition *requisition);
153
static void ev_view_size_request_continuous (EvView *view,
154
GtkRequisition *requisition);
155
static void ev_view_size_request_dual_page (EvView *view,
156
GtkRequisition *requisition);
157
static void ev_view_size_request_single_page (EvView *view,
158
GtkRequisition *requisition);
159
static void ev_view_size_request (GtkWidget *widget,
160
GtkRequisition *requisition);
161
static void ev_view_size_allocate (GtkWidget *widget,
162
GtkAllocation *allocation);
163
static void ev_view_realize (GtkWidget *widget);
164
static gboolean ev_view_scroll_event (GtkWidget *widget,
165
GdkEventScroll *event);
166
static gboolean ev_view_expose_event (GtkWidget *widget,
167
GdkEventExpose *event);
168
static gboolean ev_view_popup_menu (GtkWidget *widget);
169
static gboolean ev_view_button_press_event (GtkWidget *widget,
170
GdkEventButton *event);
171
static gboolean ev_view_motion_notify_event (GtkWidget *widget,
172
GdkEventMotion *event);
173
static gboolean ev_view_button_release_event (GtkWidget *widget,
174
GdkEventButton *event);
175
static gboolean ev_view_enter_notify_event (GtkWidget *widget,
176
GdkEventCrossing *event);
177
static gboolean ev_view_leave_notify_event (GtkWidget *widget,
178
GdkEventCrossing *event);
179
static void ev_view_style_set (GtkWidget *widget,
180
GtkStyle *old_style);
181
static void ev_view_remove_all (EvView *view);
182
183
static AtkObject *ev_view_get_accessible (GtkWidget *widget);
184
185
/*** Drawing ***/
186
static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
187
static void draw_rubberband (GtkWidget *widget,
188
GdkWindow *window,
189
const GdkRectangle *rect,
190
guchar alpha);
191
static void highlight_find_results (EvView *view,
192
int page);
193
static void draw_one_page (EvView *view,
194
gint page,
195
cairo_t *cr,
196
GdkRectangle *page_area,
197
GtkBorder *border,
198
GdkRectangle *expose_area,
199
gboolean *page_ready);
200
static void draw_loading_text (EvView *view,
201
GdkRectangle *page_area,
202
GdkRectangle *expose_area);
203
static void ev_view_reload_page (EvView *view,
204
gint page,
205
GdkRegion *region);
206
207
/*** Callbacks ***/
208
static void job_finished_cb (EvPixbufCache *pixbuf_cache,
209
GdkRegion *region,
210
EvView *view);
211
static void page_changed_cb (EvPageCache *page_cache,
212
int new_page,
213
EvView *view);
214
static void on_adjustment_value_changed (GtkAdjustment *adjustment,
215
EvView *view);
216
217
/*** GObject ***/
218
static void ev_view_finalize (GObject *object);
219
static void ev_view_destroy (GtkObject *object);
220
static void ev_view_set_property (GObject *object,
221
guint prop_id,
222
const GValue *value,
223
GParamSpec *pspec);
224
static void ev_view_get_property (GObject *object,
225
guint prop_id,
226
GValue *value,
227
GParamSpec *pspec);
228
static void ev_view_class_init (EvViewClass *class);
229
static void ev_view_init (EvView *view);
230
231
/*** Zoom and sizing ***/
232
static double zoom_for_size_fit_width (int doc_width,
233
int doc_height,
234
int target_width,
235
int target_height,
236
int vsb_width);
237
static double zoom_for_size_fit_height (int doc_width,
238
int doc_height,
239
int target_width,
240
int target_height,
241
int vsb_height);
242
static double zoom_for_size_best_fit (int doc_width,
243
int doc_height,
244
int target_width,
245
int target_height,
246
int vsb_width,
247
int hsb_width);
248
static void ev_view_zoom_for_size_presentation (EvView *view,
249
int width,
250
int height);
251
static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
252
int width,
253
int height,
254
int vsb_width,
255
int hsb_height);
256
static void ev_view_zoom_for_size_continuous (EvView *view,
257
int width,
258
int height,
259
int vsb_width,
260
int hsb_height);
261
static void ev_view_zoom_for_size_dual_page (EvView *view,
262
int width,
263
int height,
264
int vsb_width,
265
int hsb_height);
266
static void ev_view_zoom_for_size_single_page (EvView *view,
267
int width,
268
int height,
269
int vsb_width,
270
int hsb_height);
271
/*** Cursors ***/
272
static GdkCursor* ev_view_create_invisible_cursor (void);
273
static void ev_view_set_cursor (EvView *view,
274
EvViewCursor new_cursor);
275
static void ev_view_handle_cursor_over_xy (EvView *view,
276
gint x,
277
gint y);
278
279
/*** Find ***/
280
static gint ev_view_find_get_n_results (EvView *view,
281
gint page);
282
static EvRectangle *ev_view_find_get_result (EvView *view,
283
gint page,
284
gint result);
285
static void jump_to_find_result (EvView *view);
286
static void jump_to_find_page (EvView *view,
287
EvViewFindDirection direction,
288
gint shift);
289
290
/*** Selection ***/
291
static void compute_selections (EvView *view,
292
EvSelectionStyle style,
293
GdkPoint *start,
294
GdkPoint *stop);
295
static void clear_selection (EvView *view);
296
static void clear_link_selected (EvView *view);
297
static void selection_free (EvViewSelection *selection);
298
static char* get_selected_text (EvView *ev_view);
299
static void ev_view_primary_get_cb (GtkClipboard *clipboard,
300
GtkSelectionData *selection_data,
301
guint info,
302
gpointer data);
303
static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
304
gpointer data);
305
static void ev_view_update_primary_selection (EvView *ev_view);
306
307
/*** Presentation ***/
308
static void ev_view_presentation_transition_start (EvView *ev_view);
309
static void ev_view_presentation_transition_stop (EvView *ev_view);
310
311
312
G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_LAYOUT)
313
314
static void
315
scroll_to_current_page (EvView *view, GtkOrientation orientation)
316
{
317
GdkPoint view_point;
318
319
if (view->document == NULL) {
320
return;
321
}
322
323
doc_point_to_view_point (view, view->current_page, &view->pending_point, &view_point);
324
325
if (orientation == GTK_ORIENTATION_VERTICAL) {
326
view->pending_point.y = 0;
327
} else {
328
view->pending_point.x = 0;
329
}
330
331
if (orientation == GTK_ORIENTATION_VERTICAL) {
332
if (view->continuous) {
333
gtk_adjustment_clamp_page (view->vadjustment,
334
view_point.y - view->spacing / 2,
335
view_point.y + view->vadjustment->page_size);
336
} else {
337
gtk_adjustment_set_value (view->vadjustment,
338
CLAMP (view_point.y,
339
view->vadjustment->lower,
340
view->vadjustment->upper -
341
view->vadjustment->page_size));
342
}
343
} else {
344
if (view->dual_page) {
345
gtk_adjustment_clamp_page (view->hadjustment,
346
view_point.x,
347
view_point.x + view->hadjustment->page_size);
348
} else {
349
gtk_adjustment_set_value (view->hadjustment,
350
CLAMP (view_point.x,
351
view->hadjustment->lower,
352
view->hadjustment->upper -
353
view->hadjustment->page_size));
354
}
355
}
356
}
357
358
static void
359
view_set_adjustment_values (EvView *view,
360
GtkOrientation orientation)
361
{
362
GtkWidget *widget = GTK_WIDGET (view);
363
GtkAdjustment *adjustment;
364
int requisition;
365
int allocation;
366
367
double factor;
368
gint new_value;
369
370
if (orientation == GTK_ORIENTATION_HORIZONTAL) {
371
requisition = widget->requisition.width;
372
allocation = widget->allocation.width;
373
adjustment = view->hadjustment;
374
} else {
375
requisition = widget->requisition.height;
376
allocation = widget->allocation.height;
377
adjustment = view->vadjustment;
378
}
379
380
if (!adjustment)
381
return;
382
383
factor = 1.0;
384
switch (view->pending_scroll) {
385
case SCROLL_TO_KEEP_POSITION:
386
case SCROLL_TO_FIND_LOCATION:
387
factor = (adjustment->value) / adjustment->upper;
388
break;
389
case SCROLL_TO_PAGE_POSITION:
390
break;
391
case SCROLL_TO_CENTER:
392
factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
393
break;
394
}
395
396
adjustment->page_size = allocation;
397
adjustment->step_increment = allocation * 0.1;
398
adjustment->page_increment = allocation * 0.9;
399
adjustment->lower = 0;
400
adjustment->upper = MAX (allocation, requisition);
401
402
/*
403
* We add 0.5 to the values before to average out our rounding errors.
404
*/
405
switch (view->pending_scroll) {
406
case SCROLL_TO_KEEP_POSITION:
407
case SCROLL_TO_FIND_LOCATION:
408
new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
409
gtk_adjustment_set_value (adjustment, (int)new_value);
410
break;
411
case SCROLL_TO_PAGE_POSITION:
412
scroll_to_current_page (view, orientation);
413
break;
414
case SCROLL_TO_CENTER:
415
new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
416
0, adjustment->upper - adjustment->page_size);
417
gtk_adjustment_set_value (adjustment, (int)new_value);
418
break;
419
}
420
421
gtk_adjustment_changed (adjustment);
422
}
423
424
static void
425
view_update_range_and_current_page (EvView *view)
426
{
427
gint current_page;
428
gint best_current_page = -1;
429
430
/* Presentation trumps all other modes */
431
if (view->presentation) {
432
view->start_page = view->current_page;
433
view->end_page = view->current_page;
434
} else if (view->continuous) {
435
GdkRectangle current_area, unused, page_area;
436
GtkBorder border;
437
gboolean found = FALSE;
438
gint area_max = -1, area;
439
int i;
440
441
if (!(view->vadjustment && view->hadjustment))
442
return;
443
444
current_area.x = view->hadjustment->value;
445
current_area.width = view->hadjustment->upper;
446
current_area.y = view->vadjustment->value;
447
current_area.height = view->vadjustment->page_size;
448
449
for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
450
451
get_page_extents (view, i, &page_area, &border);
452
453
if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
454
area = unused.width * unused.height;
455
456
if (!found) {
457
area_max = area;
458
view->start_page = i;
459
found = TRUE;
460
best_current_page = i;
461
}
462
if (area > area_max) {
463
best_current_page = (area == area_max) ? MIN (i, best_current_page) : i;
464
area_max = area;
465
}
466
467
view->end_page = i;
468
} else if (found && view->current_page <= view->end_page) {
469
break;
470
}
471
}
472
473
} else if (view->dual_page) {
474
if (view->current_page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) {
475
view->start_page = view->current_page;
476
if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
477
view->end_page = view->start_page + 1;
478
else
479
view->end_page = view->start_page;
480
} else {
481
if (view->current_page < 1)
482
view->start_page = view->current_page;
483
else
484
view->start_page = view->current_page - 1;
485
view->end_page = view->current_page;
486
}
487
} else {
488
view->start_page = view->current_page;
489
view->end_page = view->current_page;
490
}
491
492
best_current_page = MAX (best_current_page, view->start_page);
493
current_page = ev_page_cache_get_current_page (view->page_cache);
494
495
if ((current_page != best_current_page) && (view->pending_scroll == SCROLL_TO_KEEP_POSITION)) {
496
view->current_page = best_current_page;
497
ev_page_cache_set_current_page (view->page_cache, best_current_page);
498
}
499
500
ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
501
view->start_page,
502
view->end_page,
503
view->rotation,
504
view->scale,
505
view->selection_info.selections);
506
}
507
508
static void
509
set_scroll_adjustment (EvView *view,
510
GtkOrientation orientation,
511
GtkAdjustment *adjustment)
512
{
513
GtkAdjustment **to_set;
514
515
if (orientation == GTK_ORIENTATION_HORIZONTAL)
516
to_set = &view->hadjustment;
517
else
518
to_set = &view->vadjustment;
519
520
if (*to_set != adjustment) {
521
if (*to_set) {
522
g_signal_handlers_disconnect_by_func (*to_set,
523
(gpointer) on_adjustment_value_changed,
524
view);
525
g_object_unref (*to_set);
526
}
527
528
*to_set = adjustment;
529
view_set_adjustment_values (view, orientation);
530
531
if (*to_set) {
532
g_object_ref (*to_set);
533
g_signal_connect (*to_set, "value_changed",
534
G_CALLBACK (on_adjustment_value_changed), view);
535
}
536
}
537
}
538
539
static void
540
ev_view_set_scroll_adjustments (GtkLayout *layout,
541
GtkAdjustment *hadjustment,
542
GtkAdjustment *vadjustment)
543
{
544
EvView *view = EV_VIEW (layout);
545
546
set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
547
set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
548
549
on_adjustment_value_changed (NULL, view);
550
}
551
552
static void
553
add_scroll_binding_keypad (GtkBindingSet *binding_set,
554
guint keyval,
555
GdkModifierType modifiers,
556
GtkScrollType scroll,
557
gboolean horizontal)
558
{
559
guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
560
561
gtk_binding_entry_add_signal (binding_set, keyval, modifiers,
562
"binding_activated", 2,
563
GTK_TYPE_SCROLL_TYPE, scroll,
564
G_TYPE_BOOLEAN, horizontal);
565
gtk_binding_entry_add_signal (binding_set, keypad_keyval, modifiers,
566
"binding_activated", 2,
567
GTK_TYPE_SCROLL_TYPE, scroll,
568
G_TYPE_BOOLEAN, horizontal);
569
}
570
571
void
572
ev_view_scroll (EvView *view,
573
GtkScrollType scroll,
574
gboolean horizontal)
575
{
576
GtkAdjustment *adjustment;
577
double value, increment;
578
gboolean first_page = FALSE;
579
gboolean last_page = FALSE;
580
581
view->jump_to_find_result = FALSE;
582
583
if (view->presentation || view->sizing_mode == EV_SIZING_BEST_FIT) {
584
switch (scroll) {
585
case GTK_SCROLL_PAGE_BACKWARD:
586
case GTK_SCROLL_STEP_BACKWARD:
587
ev_view_previous_page (view);
588
break;
589
case GTK_SCROLL_PAGE_FORWARD:
590
case GTK_SCROLL_STEP_FORWARD:
591
ev_view_next_page (view);
592
break;
593
default:
594
break;
595
}
596
return;
597
}
598
599
/* Assign values for increment and vertical adjustment */
600
adjustment = horizontal ? view->hadjustment : view->vadjustment;
601
increment = adjustment->page_size * 0.75;
602
value = adjustment->value;
603
604
/* Assign boolean for first and last page */
605
if (view->current_page == 0)
606
first_page = TRUE;
607
if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
608
last_page = TRUE;
609
610
switch (scroll) {
611
case GTK_SCROLL_PAGE_BACKWARD:
612
/* Do not jump backwards if at the first page */
613
if (value == (adjustment->lower) && first_page) {
614
/* Do nothing */
615
/* At the top of a page, assign the upper bound limit of previous page */
616
} else if (value == (adjustment->lower)) {
617
value = adjustment->upper - adjustment->page_size;
618
ev_view_previous_page (view);
619
/* Jump to the top */
620
} else {
621
value = MAX (value - increment, adjustment->lower);
622
}
623
break;
624
case GTK_SCROLL_PAGE_FORWARD:
625
/* Do not jump forward if at the last page */
626
if (value == (adjustment->upper - adjustment->page_size) && last_page) {
627
/* Do nothing */
628
/* At the bottom of a page, assign the lower bound limit of next page */
629
} else if (value == (adjustment->upper - adjustment->page_size)) {
630
value = 0;
631
ev_view_next_page (view);
632
/* Jump to the bottom */
633
} else {
634
value = MIN (value + increment, adjustment->upper - adjustment->page_size);
635
}
636
break;
637
case GTK_SCROLL_STEP_BACKWARD:
638
value -= adjustment->step_increment;
639
break;
640
case GTK_SCROLL_STEP_FORWARD:
641
value += adjustment->step_increment;
642
break;
643
case GTK_SCROLL_STEP_DOWN:
644
value -= adjustment->step_increment / 10;
645
break;
646
case GTK_SCROLL_STEP_UP:
647
value += adjustment->step_increment / 10;
648
break;
649
default:
650
break;
651
}
652
653
value = CLAMP (value, adjustment->lower,
654
adjustment->upper - adjustment->page_size);
655
656
gtk_adjustment_set_value (adjustment, value);
657
}
658
659
#define MARGIN 5
660
661
static void
662
ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
663
{
664
GtkWidget *widget = GTK_WIDGET (view);
665
GtkAdjustment *adjustment;
666
int value;
667
668
view->pending_scroll = SCROLL_TO_FIND_LOCATION;
669
670
adjustment = view->vadjustment;
671
672
if (rect->y < adjustment->value) {
673
value = MAX (adjustment->lower, rect->y - MARGIN);
674
gtk_adjustment_set_value (view->vadjustment, value);
675
} else if (rect->y + rect->height >
676
adjustment->value + widget->allocation.height) {
677
value = MIN (adjustment->upper, rect->y + rect->height -
678
widget->allocation.height + MARGIN);
679
gtk_adjustment_set_value (view->vadjustment, value);
680
}
681
682
adjustment = view->hadjustment;
683
684
if (rect->x < adjustment->value) {
685
value = MAX (adjustment->lower, rect->x - MARGIN);
686
gtk_adjustment_set_value (view->hadjustment, value);
687
} else if (rect->x + rect->height >
688
adjustment->value + widget->allocation.width) {
689
value = MIN (adjustment->upper, rect->x + rect->width -
690
widget->allocation.width + MARGIN);
691
gtk_adjustment_set_value (view->hadjustment, value);
692
}
693
694
gtk_widget_queue_resize (GTK_WIDGET (view));
695
}
696
697
/*** Geometry computations ***/
698
699
static void
700
compute_border (EvView *view, int width, int height, GtkBorder *border)
701
{
702
if (view->presentation) {
703
border->left = 0;
704
border->right = 0;
705
border->top = 0;
706
border->bottom = 0;
707
} else {
708
ev_document_misc_get_page_border_size (width, height, border);
709
}
710
}
711
712
static void
713
get_page_y_offset (EvView *view, int page, double zoom, int *y_offset)
714
{
715
int max_width, offset;
716
GtkBorder border;
717
718
g_return_if_fail (y_offset != NULL);
719
720
ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width);
721
722
compute_border (view, max_width, max_width, &border);
723
724
if (view->dual_page) {
725
ev_page_cache_get_height_to_page (view->page_cache, page,
726
view->rotation, zoom, NULL, &offset);
727
offset += ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 + 1) * view->spacing + ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 ) * (border.top + border.bottom);
728
} else {
729
ev_page_cache_get_height_to_page (view->page_cache, page,
730
view->rotation, zoom, &offset, NULL);
731
offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
732
}
733
734
*y_offset = offset;
735
return;
736
}
737
738
static gboolean
739
get_page_extents (EvView *view,
740
gint page,
741
GdkRectangle *page_area,
742
GtkBorder *border)
743
{
744
GtkWidget *widget;
745
int width, height;
746
747
widget = GTK_WIDGET (view);
748
749
/* Get the size of the page */
750
ev_page_cache_get_size (view->page_cache, page,
751
view->rotation,
752
view->scale,
753
&width, &height);
754
compute_border (view, width, height, border);
755
page_area->width = width + border->left + border->right;
756
page_area->height = height + border->top + border->bottom;
757
758
if (view->presentation) {
759
page_area->x = (MAX (0, widget->allocation.width - width))/2;
760
page_area->y = (MAX (0, widget->allocation.height - height))/2;
761
} else if (view->continuous) {
762
gint max_width;
763
gint x, y;
764
765
ev_page_cache_get_max_width (view->page_cache, view->rotation,
766
view->scale, &max_width);
767
max_width = max_width + border->left + border->right;
768
/* Get the location of the bounding box */
769
if (view->dual_page) {
770
x = view->spacing + ((page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? 0 : 1) * (max_width + view->spacing);
771
x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
772
if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
773
x = x + (max_width - width - border->left - border->right);
774
} else {
775
x = view->spacing;
776
x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
777
}
778
779
get_page_y_offset (view, page, view->scale, &y);
780
781
page_area->x = x;
782
page_area->y = y;
783
} else {
784
gint x, y;
785
if (view->dual_page) {
786
gint width_2, height_2;
787
gint max_width = width;
788
gint max_height = height;
789
GtkBorder overall_border;
790
gint other_page;
791
792
other_page = (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? page + 1: page - 1;
793
794
/* First, we get the bounding box of the two pages */
795
if (other_page < ev_page_cache_get_n_pages (view->page_cache)
796
&& (0 <= other_page)) {
797
ev_page_cache_get_size (view->page_cache,
798
other_page,
799
view->rotation,
800
view->scale,
801
&width_2, &height_2);
802
if (width_2 > width)
803
max_width = width_2;
804
if (height_2 > height)
805
max_height = height_2;
806
}
807
compute_border (view, max_width, max_height, &overall_border);
808
809
/* Find the offsets */
810
x = view->spacing;
811
y = view->spacing;
812
813
/* Adjust for being the left or right page */
814
if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
815
x = x + max_width - width;
816
else
817
x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
818
819
y = y + (max_height - height)/2;
820
821
/* Adjust for extra allocation */
822
x = x + MAX (0, widget->allocation.width -
823
((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
824
y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
825
} else {
826
x = view->spacing;
827
y = view->spacing;
828
829
/* Adjust for extra allocation */
830
x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
831
y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
832
}
833
834
page_area->x = x;
835
page_area->y = y;
836
}
837
838
return TRUE;
839
}
840
841
static void
842
view_point_to_doc_point (EvView *view,
843
GdkPoint *view_point,
844
GdkRectangle *page_area,
845
double *doc_point_x,
846
double *doc_point_y)
847
{
848
*doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
849
*doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
850
}
851
852
static void
853
view_rect_to_doc_rect (EvView *view,
854
GdkRectangle *view_rect,
855
GdkRectangle *page_area,
856
EvRectangle *doc_rect)
857
{
858
doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
859
doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
860
doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
861
doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
862
}
863
864
static gboolean
865
doc_point_to_view_point (EvView *view,
866
int page,
867
EvPoint *doc_point,
868
GdkPoint *view_point)
869
{
870
GdkRectangle page_area;
871
GtkBorder border;
872
double x, y, view_x, view_y;
873
int width, height;
874
875
ev_page_cache_get_size (view->page_cache, page,
876
view->rotation,
877
1.0,
878
&width, &height);
879
880
if (view->rotation == 0) {
881
x = doc_point->x;
882
y = doc_point->y;
883
} else if (view->rotation == 90) {
884
x = width - doc_point->y;
885
y = doc_point->x;
886
} else if (view->rotation == 180) {
887
x = width - doc_point->x;
888
y = height - doc_point->y;
889
} else if (view->rotation == 270) {
890
x = doc_point->y;
891
y = height - doc_point->x;
892
} else {
893
g_assert_not_reached ();
894
}
895
896
get_page_extents (view, page, &page_area, &border);
897
898
view_x = x * view->scale;
899
view_y = y * view->scale;
900
view_point->x = view_x + page_area.x;
901
view_point->y = view_y + page_area.y;
902
903
return (view_x > 0 && view_x <= page_area.width &&
904
view_y > 0 && view_y <= page_area.height);
905
}
906
907
static void
908
doc_rect_to_view_rect (EvView *view,
909
int page,
910
EvRectangle *doc_rect,
911
GdkRectangle *view_rect)
912
{
913
GdkRectangle page_area;
914
GtkBorder border;
915
double x, y, w, h;
916
int width, height;
917
918
ev_page_cache_get_size (view->page_cache, page,
919
view->rotation,
920
1.0,
921
&width, &height);
922
923
if (view->rotation == 0) {
924
x = doc_rect->x1;
925
y = doc_rect->y1;
926
w = doc_rect->x2 - doc_rect->x1;
927
h = doc_rect->y2 - doc_rect->y1;
928
} else if (view->rotation == 90) {
929
x = width - doc_rect->y2;
930
y = doc_rect->x1;
931
w = doc_rect->y2 - doc_rect->y1;
932
h = doc_rect->x2 - doc_rect->x1;
933
} else if (view->rotation == 180) {
934
x = width - doc_rect->x2;
935
y = height - doc_rect->y2;
936
w = doc_rect->x2 - doc_rect->x1;
937
h = doc_rect->y2 - doc_rect->y1;
938
} else if (view->rotation == 270) {
939
x = doc_rect->y1;
940
y = height - doc_rect->x2;
941
w = doc_rect->y2 - doc_rect->y1;
942
h = doc_rect->x2 - doc_rect->x1;
943
} else {
944
g_assert_not_reached ();
945
}
946
947
get_page_extents (view, page, &page_area, &border);
948
949
view_rect->x = x * view->scale + page_area.x;
950
view_rect->y = y * view->scale + page_area.y;
951
view_rect->width = w * view->scale;
952
view_rect->height = h * view->scale;
953
}
954
955
static void
956
find_page_at_location (EvView *view,
957
gdouble x,
958
gdouble y,
959
gint *page,
960
gint *x_offset,
961
gint *y_offset)
962
{
963
int i;
964
965
if (view->document == NULL)
966
return;
967
968
g_assert (page);
969
g_assert (x_offset);
970
g_assert (y_offset);
971
972
for (i = view->start_page; i <= view->end_page; i++) {
973
GdkRectangle page_area;
974
GtkBorder border;
975
976
if (! get_page_extents (view, i, &page_area, &border))
977
continue;
978
979
if ((x >= page_area.x + border.left) &&
980
(x < page_area.x + page_area.width - border.right) &&
981
(y >= page_area.y + border.top) &&
982
(y < page_area.y + page_area.height - border.bottom)) {
983
*page = i;
984
*x_offset = x - (page_area.x + border.left);
985
*y_offset = y - (page_area.y + border.top);
986
return;
987
}
988
}
989
990
*page = -1;
991
}
992
993
static gboolean
994
location_in_text (EvView *view,
995
gdouble x,
996
gdouble y)
997
{
998
GdkRegion *region;
999
gint page = -1;
1000
gint x_offset = 0, y_offset = 0;
1001
1002
find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1003
1004
if (page == -1)
1005
return FALSE;
1006
1007
region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
1008
1009
if (region)
1010
return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
1011
else
1012
return FALSE;
1013
}
1014
1015
static int
1016
ev_view_get_width (EvView *view)
1017
{
1018
return GTK_WIDGET (view)->allocation.width;
1019
}
1020
1021
static int
1022
ev_view_get_height (EvView *view)
1023
{
1024
return GTK_WIDGET (view)->allocation.height;
1025
}
1026
1027
static gboolean
1028
location_in_selected_text (EvView *view,
1029
gdouble x,
1030
gdouble y)
1031
{
1032
gint page = -1;
1033
gint x_offset = 0, y_offset = 0;
1034
EvViewSelection *selection;
1035
GList *l = NULL;
1036
1037
for (l = view->selection_info.selections; l != NULL; l = l->next) {
1038
selection = (EvViewSelection *)l->data;
1039
1040
find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1041
1042
if (page != selection->page)
1043
continue;
1044
1045
if (selection->covered_region &&
1046
gdk_region_point_in (selection->covered_region, x_offset, y_offset))
1047
return TRUE;
1048
}
1049
1050
return FALSE;
1051
}
1052
1053
static gboolean
1054
get_doc_point_from_offset (EvView *view,
1055
gint page,
1056
gint x_offset,
1057
gint y_offset,
1058
gint *x_new,
1059
gint *y_new)
1060
{
1061
int width, height;
1062
double x, y;
1063
1064
ev_page_cache_get_size (view->page_cache, page,
1065
view->rotation,
1066
1.0,
1067
&width, &height);
1068
1069
x_offset = x_offset / view->scale;
1070
y_offset = y_offset / view->scale;
1071
1072
if (view->rotation == 0) {
1073
x = x_offset;
1074
y = y_offset;
1075
} else if (view->rotation == 90) {
1076
x = y_offset;
1077
y = width - x_offset;
1078
} else if (view->rotation == 180) {
1079
x = width - x_offset;
1080
y = height - y_offset;
1081
} else if (view->rotation == 270) {
1082
x = height - y_offset;
1083
y = x_offset;
1084
} else {
1085
g_assert_not_reached ();
1086
}
1087
1088
*x_new = x;
1089
*y_new = y;
1090
1091
return TRUE;
1092
}
1093
1094
/*** Hyperref ***/
1095
static EvLink *
1096
ev_view_get_link_at_location (EvView *view,
1097
gdouble x,
1098
gdouble y)
1099
{
1100
gint page = -1;
1101
gint x_offset = 0, y_offset = 0;
1102
gint x_new = 0, y_new = 0;
1103
GList *link_mapping;
1104
1105
if (!EV_IS_DOCUMENT_LINKS (view->document))
1106
return NULL;
1107
1108
x += view->scroll_x;
1109
y += view->scroll_y;
1110
1111
find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1112
1113
if (page == -1)
1114
return NULL;
1115
1116
1117
if (get_doc_point_from_offset (view, page, x_offset,
1118
y_offset, &x_new, &y_new) == FALSE)
1119
return NULL;
1120
1121
link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1122
1123
if (link_mapping)
1124
return ev_link_mapping_find (link_mapping, x_new, y_new);
1125
else
1126
return NULL;
1127
}
1128
1129
static void
1130
goto_fitr_dest (EvView *view, EvLinkDest *dest)
1131
{
1132
EvPoint doc_point;
1133
gdouble zoom, left, top;
1134
gboolean change_left, change_top;
1135
1136
left = ev_link_dest_get_left (dest, &change_left);
1137
top = ev_link_dest_get_top (dest, &change_top);
1138
1139
zoom = zoom_for_size_best_fit (ev_link_dest_get_right (dest) - left,
1140
ev_link_dest_get_bottom (dest) - top,
1141
ev_view_get_width (view),
1142
ev_view_get_height (view), 0, 0);
1143
1144
ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1145
ev_view_set_zoom (view, zoom, FALSE);
1146
1147
doc_point.x = change_left ? left : 0;
1148
doc_point.y = change_top ? top : 0;
1149
1150
view->current_page = ev_link_dest_get_page (dest);
1151
if (change_left || change_top)
1152
view->pending_point = doc_point;
1153
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1154
1155
gtk_widget_queue_resize (GTK_WIDGET (view));
1156
}
1157
1158
static void
1159
goto_fitv_dest (EvView *view, EvLinkDest *dest)
1160
{
1161
EvPoint doc_point;
1162
int doc_width, doc_height, page;
1163
double zoom, left;
1164
gboolean change_left;
1165
1166
page = ev_link_dest_get_page (dest);
1167
ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1168
1169
left = ev_link_dest_get_left (dest, &change_left);
1170
doc_point.x = change_left ? left : 0;
1171
doc_point.y = 0;
1172
1173
zoom = zoom_for_size_fit_height (doc_width - doc_point.x , doc_height,
1174
ev_view_get_width (view),
1175
ev_view_get_height (view), 0);
1176
1177
ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1178
ev_view_set_zoom (view, zoom, FALSE);
1179
1180
view->current_page = page;
1181
if (change_left)
1182
view->pending_point = doc_point;
1183
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1184
1185
gtk_widget_queue_resize (GTK_WIDGET (view));
1186
}
1187
1188
static void
1189
goto_fith_dest (EvView *view, EvLinkDest *dest)
1190
{
1191
EvPoint doc_point;
1192
int doc_width, doc_height, page;
1193
gdouble zoom, top;
1194
gboolean change_top;
1195
1196
page = ev_link_dest_get_page (dest);
1197
ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1198
1199
top = ev_link_dest_get_top (dest, &change_top);
1200
1201
doc_point.x = 0;
1202
doc_point.y = change_top ? top : 0;
1203
1204
zoom = zoom_for_size_fit_width (doc_width, top,
1205
ev_view_get_width (view),
1206
ev_view_get_height (view), 0);
1207
1208
ev_view_set_sizing_mode (view, EV_SIZING_FIT_WIDTH);
1209
ev_view_set_zoom (view, zoom, FALSE);
1210
1211
view->current_page = page;
1212
if (change_top)
1213
view->pending_point = doc_point;
1214
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1215
1216
gtk_widget_queue_resize (GTK_WIDGET (view));
1217
}
1218
1219
static void
1220
goto_fit_dest (EvView *view, EvLinkDest *dest)
1221
{
1222
double zoom;
1223
int doc_width, doc_height;
1224
int page;
1225
1226
page = ev_link_dest_get_page (dest);
1227
ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1228
1229
zoom = zoom_for_size_best_fit (doc_width, doc_height, ev_view_get_width (view),
1230
ev_view_get_height (view), 0, 0);
1231
1232
ev_view_set_sizing_mode (view, EV_SIZING_BEST_FIT);
1233
ev_view_set_zoom (view, zoom, FALSE);
1234
1235
view->current_page = page;
1236
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1237
1238
gtk_widget_queue_resize (GTK_WIDGET (view));
1239
}
1240
1241
static void
1242
goto_xyz_dest (EvView *view, EvLinkDest *dest)
1243
{
1244
EvPoint doc_point;
1245
gint page;
1246
gdouble zoom, left, top;
1247
gboolean change_zoom, change_left, change_top;
1248
1249
zoom = ev_link_dest_get_zoom (dest, &change_zoom);
1250
page = ev_link_dest_get_page (dest);
1251
1252
if (change_zoom && zoom > 1) {
1253
ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1254
ev_view_set_zoom (view, zoom, FALSE);
1255
}
1256
1257
left = ev_link_dest_get_left (dest, &change_left);
1258
top = ev_link_dest_get_top (dest, &change_top);
1259
1260
doc_point.x = change_left ? left : 0;
1261
doc_point.y = change_top ? top : 0;
1262
1263
view->current_page = page;
1264
if (change_left || change_top)
1265
view->pending_point = doc_point;
1266
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1267
1268
gtk_widget_queue_resize (GTK_WIDGET (view));
1269
}
1270
1271
static void
1272
goto_dest (EvView *view, EvLinkDest *dest)
1273
{
1274
EvLinkDestType type;
1275
int page, n_pages, current_page;
1276
1277
page = ev_link_dest_get_page (dest);
1278
n_pages = ev_page_cache_get_n_pages (view->page_cache);
1279
1280
if (page < 0 || page >= n_pages)
1281
return;
1282
1283
current_page = view->current_page;
1284
1285
type = ev_link_dest_get_dest_type (dest);
1286
1287
switch (type) {
1288
case EV_LINK_DEST_TYPE_PAGE:
1289
ev_page_cache_set_current_page (view->page_cache, page);
1290
break;
1291
case EV_LINK_DEST_TYPE_FIT:
1292
goto_fit_dest (view, dest);
1293
break;
1294
case EV_LINK_DEST_TYPE_FITH:
1295
goto_fith_dest (view, dest);
1296
break;
1297
case EV_LINK_DEST_TYPE_FITV:
1298
goto_fitv_dest (view, dest);
1299
break;
1300
case EV_LINK_DEST_TYPE_FITR:
1301
goto_fitr_dest (view, dest);
1302
break;
1303
case EV_LINK_DEST_TYPE_XYZ:
1304
goto_xyz_dest (view, dest);
1305
break;
1306
case EV_LINK_DEST_TYPE_PAGE_LABEL:
1307
ev_page_cache_set_page_label (view->page_cache, ev_link_dest_get_page_label (dest));
1308
break;
1309
default:
1310
g_assert_not_reached ();
1311
}
1312
1313
if (current_page != view->current_page)
1314
ev_page_cache_set_current_page (view->page_cache,
1315
view->current_page);
1316
}
1317
1318
static void
1319
ev_view_goto_dest (EvView *view, EvLinkDest *dest)
1320
{
1321
EvLinkDestType type;
1322
1323
type = ev_link_dest_get_dest_type (dest);
1324
1325
if (type == EV_LINK_DEST_TYPE_NAMED) {
1326
EvLinkDest *dest2;
1327
const gchar *named_dest;
1328
1329
named_dest = ev_link_dest_get_named_dest (dest);
1330
dest2 = ev_document_links_find_link_dest (EV_DOCUMENT_LINKS (view->document),
1331
named_dest);
1332
if (dest2) {
1333
goto_dest (view, dest2);
1334
g_object_unref (dest2);
1335
}
1336
1337
return;
1338
}
1339
1340
goto_dest (view, dest);
1341
}
1342
1343
void
1344
ev_view_handle_link (EvView *view, EvLink *link)
1345
{
1346
EvLinkAction *action = NULL;
1347
EvLinkActionType type;
1348
1349
action = ev_link_get_action (link);
1350
if (!action)
1351
return;
1352
1353
type = ev_link_action_get_action_type (action);
1354
1355
switch (type) {
1356
case EV_LINK_ACTION_TYPE_GOTO_DEST: {
1357
EvLinkDest *dest;
1358
1359
g_signal_emit (view, signals[SIGNAL_HANDLE_LINK], 0, link);
1360
1361
dest = ev_link_action_get_dest (action);
1362
ev_view_goto_dest (view, dest);
1363
}
1364
break;
1365
case EV_LINK_ACTION_TYPE_GOTO_REMOTE:
1366
case EV_LINK_ACTION_TYPE_EXTERNAL_URI:
1367
case EV_LINK_ACTION_TYPE_LAUNCH:
1368
case EV_LINK_ACTION_TYPE_NAMED:
1369
g_signal_emit (view, signals[SIGNAL_EXTERNAL_LINK], 0, action);
1370
break;
1371
}
1372
}
1373
1374
gchar *
1375
ev_view_page_label_from_dest (EvView *view, EvLinkDest *dest)
1376
{
1377
EvLinkDestType type;
1378
gchar *msg = NULL;
1379
1380
type = ev_link_dest_get_dest_type (dest);
1381
1382
switch (type) {
1383
case EV_LINK_DEST_TYPE_NAMED: {
1384
EvLinkDest *dest2;
1385
const gchar *named_dest;
1386
1387
named_dest = ev_link_dest_get_named_dest (dest);
1388
dest2 = ev_document_links_find_link_dest (EV_DOCUMENT_LINKS (view->document),
1389
named_dest);
1390
if (dest2) {
1391
msg = ev_page_cache_get_page_label (view->page_cache,
1392
ev_link_dest_get_page (dest2));
1393
g_object_unref (dest2);
1394
}
1395
}
1396
1397
break;
1398
case EV_LINK_DEST_TYPE_PAGE_LABEL: {
1399
msg = g_strdup (ev_link_dest_get_page_label (dest));
1400
}
1401
break;
1402
default:
1403
msg = ev_page_cache_get_page_label (view->page_cache,
1404
ev_link_dest_get_page (dest));
1405
}
1406
1407
return msg;
1408
}
1409
1410
static char *
1411
tip_from_action_named (EvLinkAction *action)
1412
{
1413
const gchar *name = ev_link_action_get_name (action);
1414
1415
if (g_ascii_strcasecmp (name, "FirstPage") == 0) {
1416
return g_strdup (_("Go to first page"));
1417
} else if (g_ascii_strcasecmp (name, "PrevPage") == 0) {
1418
return g_strdup (_("Go to previous page"));
1419
} else if (g_ascii_strcasecmp (name, "NextPage") == 0) {
1420
return g_strdup (_("Go to next page"));
1421
} else if (g_ascii_strcasecmp (name, "LastPage") == 0) {
1422
return g_strdup (_("Go to last page"));
1423
} else if (g_ascii_strcasecmp (name, "GoToPage") == 0) {
1424
return g_strdup (_("Go to page"));
1425
} else if (g_ascii_strcasecmp (name, "Find") == 0) {
1426
return g_strdup (_("Find"));
1427
}
1428
1429
return NULL;
1430
}
1431
1432
static char *
1433
tip_from_link (EvView *view, EvLink *link)
1434
{
1435
EvLinkAction *action;
1436
EvLinkActionType type;
1437
char *msg = NULL;
1438
char *page_label;
1439
const char *title;
1440
1441
action = ev_link_get_action (link);
1442
title = ev_link_get_title (link);
1443
1444
if (!action)
1445
return title ? g_strdup (title) : NULL;
1446
1447
type = ev_link_action_get_action_type (action);
1448
1449
switch (type) {
1450
case EV_LINK_ACTION_TYPE_GOTO_DEST:
1451
page_label = ev_view_page_label_from_dest (view,
1452
ev_link_action_get_dest (action));
1453
if (page_label) {
1454
msg = g_strdup_printf (_("Go to page %s"), page_label);
1455
g_free (page_label);
1456
}
1457
break;
1458
case EV_LINK_ACTION_TYPE_GOTO_REMOTE:
1459
if (title) {
1460
msg = g_strdup_printf (_("Go to %s on file “%s”"), title,
1461
ev_link_action_get_filename (action));
1462
} else {
1463
msg = g_strdup_printf (_("Go to file “%s”"),
1464
ev_link_action_get_filename (action));
1465
}
1466
break;
1467
case EV_LINK_ACTION_TYPE_EXTERNAL_URI:
1468
msg = g_strdup (ev_link_action_get_uri (action));
1469
break;
1470
case EV_LINK_ACTION_TYPE_LAUNCH:
1471
msg = g_strdup_printf (_("Launch %s"),
1472
ev_link_action_get_filename (action));
1473
break;
1474
case EV_LINK_ACTION_TYPE_NAMED:
1475
msg = tip_from_action_named (action);
1476
break;
1477
default:
1478
if (title)
1479
msg = g_strdup (title);
1480
break;
1481
}
1482
1483
return msg;
1484
}
1485
1486
static void
1487
ev_view_handle_cursor_over_xy (EvView *view, gint x, gint y)
1488
{
1489
EvLink *link;
1490
EvFormField *field;
1491
1492
if (view->cursor == EV_VIEW_CURSOR_HIDDEN)
1493
return;
1494
1495
if (view->drag_info.in_drag) {
1496
if (view->cursor != EV_VIEW_CURSOR_DRAG)
1497
ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1498
return;
1499
}
1500
1501
if (view->scroll_info.autoscrolling) {
1502
if (view->cursor != EV_VIEW_CURSOR_AUTOSCROLL)
1503
ev_view_set_cursor (view, EV_VIEW_CURSOR_AUTOSCROLL);
1504
return;
1505
}
1506
1507
link = ev_view_get_link_at_location (view, x, y);
1508
if (link) {
1509
g_object_set (view, "has-tooltip", TRUE, NULL);
1510
ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1511
} else if ((field = ev_view_get_form_field_at_location (view, x, y))) {
1512
if (field->is_read_only) {
1513
if (view->cursor == EV_VIEW_CURSOR_LINK ||
1514
view->cursor == EV_VIEW_CURSOR_IBEAM ||
1515
view->cursor == EV_VIEW_CURSOR_DRAG)
1516
ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1517
} else if (EV_IS_FORM_FIELD_TEXT (field)) {
1518
ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1519
} else {
1520
ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1521
}
1522
} else if (location_in_text (view, x + view->scroll_x, y + view->scroll_y)) {
1523
ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1524
} else {
1525
if (view->cursor == EV_VIEW_CURSOR_LINK ||
1526
view->cursor == EV_VIEW_CURSOR_IBEAM ||
1527
view->cursor == EV_VIEW_CURSOR_DRAG ||
1528
view->cursor == EV_VIEW_CURSOR_AUTOSCROLL)
1529
ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1530
}
1531
}
1532
1533
/*** Images ***/
1534
static EvImage *
1535
ev_view_get_image_at_location (EvView *view,
1536
gdouble x,
1537
gdouble y)
1538
{
1539
gint page = -1;
1540
gint x_offset = 0, y_offset = 0;
1541
gint x_new = 0, y_new = 0;
1542
GList *image_mapping;
1543
1544
if (!EV_IS_DOCUMENT_IMAGES (view->document))
1545
return NULL;
1546
1547
x += view->scroll_x;
1548
y += view->scroll_y;
1549
1550
find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1551
1552
if (page == -1)
1553
return NULL;
1554
1555
if (get_doc_point_from_offset (view, page, x_offset,
1556
y_offset, &x_new, &y_new) == FALSE)
1557
return NULL;
1558
1559
image_mapping = ev_pixbuf_cache_get_image_mapping (view->pixbuf_cache, page);
1560
1561
if (image_mapping)
1562
return ev_image_mapping_find (image_mapping, x_new, y_new);
1563
else
1564
return NULL;
1565
}
1566
1567
/*** Forms ***/
1568
static EvFormField *
1569
ev_view_get_form_field_at_location (EvView *view,
1570
gdouble x,
1571
gdouble y)
1572
{
1573
gint page = -1;
1574
gint x_offset = 0, y_offset = 0;
1575
gint x_new = 0, y_new = 0;
1576
GList *forms_mapping;
1577
1578
if (!EV_IS_DOCUMENT_FORMS (view->document))
1579
return NULL;
1580
1581
x += view->scroll_x;
1582
y += view->scroll_y;
1583
1584
find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1585
1586
if (page == -1)
1587
return NULL;
1588
1589
if (get_doc_point_from_offset (view, page, x_offset,
1590
y_offset, &x_new, &y_new) == FALSE)
1591
return NULL;
1592
1593
forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache, page);
1594
1595
if (forms_mapping)
1596
return ev_form_field_mapping_find (forms_mapping, x_new, y_new);
1597
else
1598
return NULL;
1599
}
1600
1601
static GdkRegion *
1602
ev_view_form_field_get_region (EvView *view,
1603
EvFormField *field)
1604
{
1605
EvRectangle field_area;
1606
GdkRectangle view_area;
1607
GList *forms_mapping;
1608
1609
forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
1610
field->page->index);
1611
ev_form_field_mapping_get_area (forms_mapping, field, &field_area);
1612
doc_rect_to_view_rect (view, field->page->index, &field_area, &view_area);
1613
view_area.x -= view->scroll_x;
1614
view_area.y -= view->scroll_y;
1615
1616
return gdk_region_rectangle (&view_area);
1617
}
1618
1619
static gboolean
1620
ev_view_forms_remove_widgets (EvView *view)
1621
{
1622
ev_view_remove_all (view);
1623
1624
return FALSE;
1625
}
1626
1627
static void
1628
ev_view_form_field_destroy (GtkWidget *widget,
1629
EvView *view)
1630
{
1631
g_idle_add ((GSourceFunc)ev_view_forms_remove_widgets, view);
1632
}
1633
1634
static GtkWidget *
1635
ev_view_form_field_button_create_widget (EvView *view,
1636
EvFormField *field)
1637
{
1638
EvFormFieldButton *field_button = EV_FORM_FIELD_BUTTON (field);
1639
GdkRegion *field_region = NULL;
1640
1641
switch (field_button->type) {
1642
case EV_FORM_FIELD_BUTTON_PUSH:
1643
return NULL;
1644
case EV_FORM_FIELD_BUTTON_CHECK:
1645
case EV_FORM_FIELD_BUTTON_RADIO: {
1646
gboolean state;
1647
GList *forms_mapping, *l;
1648
1649
state = ev_document_forms_form_field_button_get_state (EV_DOCUMENT_FORMS (view->document),
1650
field);
1651
1652
/* FIXME: it actually depends on NoToggleToOff flags */
1653
if (field_button->type == EV_FORM_FIELD_BUTTON_RADIO &&
1654
state && field_button->state)
1655
return NULL;
1656
1657
field_region = ev_view_form_field_get_region (view, field);
1658
1659
/* For radio buttons and checkbox buttons that are in a set
1660
* we need to update also the region for the current selected item
1661
*/
1662
forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
1663
field->page->index);
1664
for (l = forms_mapping; l; l = g_list_next (l)) {
1665
EvFormField *button = ((EvFormFieldMapping *)(l->data))->field;
1666
GdkRegion *button_region;
1667
1668
if (button->id == field->id)
1669
continue;
1670
1671
/* FIXME: only buttons in the same group should be updated */
1672
if (!EV_IS_FORM_FIELD_BUTTON (button) ||
1673
EV_FORM_FIELD_BUTTON (button)->type != field_button->type ||
1674
EV_FORM_FIELD_BUTTON (button)->state != TRUE)
1675
continue;
1676
1677
button_region = ev_view_form_field_get_region (view, button);
1678
gdk_region_union (field_region, button_region);
1679
gdk_region_destroy (button_region);
1680
}
1681
1682
ev_document_forms_form_field_button_set_state (EV_DOCUMENT_FORMS (view->document),
1683
field, !state);
1684
field_button->state = !state;
1685
}
1686
break;
1687
}
1688
1689
ev_view_reload_page (view, field->page->index, field_region);
1690
gdk_region_destroy (field_region);
1691
1692
return NULL;
1693
}
1694
1695
static void
1696
ev_view_form_field_text_save (EvView *view,
1697
GtkWidget *widget)
1698
{
1699
EvFormField *field;
1700
1701
if (!view->document)
1702
return;
1703
1704
field = g_object_get_data (G_OBJECT (widget), "form-field");
1705
1706
if (field->changed) {
1707
EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
1708
GdkRegion *field_region;
1709
1710
field_region = ev_view_form_field_get_region (view, field);
1711
1712
ev_document_forms_form_field_text_set_text (EV_DOCUMENT_FORMS (view->document),
1713
field, field_text->text);
1714
field->changed = FALSE;
1715
ev_view_reload_page (view, field->page->index, field_region);
1716
gdk_region_destroy (field_region);
1717
}
1718
}
1719
1720
static void
1721
ev_view_form_field_text_changed (GtkWidget *widget,
1722
EvFormField *field)
1723
{
1724
EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
1725
gchar *text = NULL;
1726
1727
if (GTK_IS_ENTRY (widget)) {
1728
text = g_strdup (gtk_entry_get_text (GTK_ENTRY (widget)));
1729
} else if (GTK_IS_TEXT_BUFFER (widget)) {
1730
GtkTextIter start, end;
1731
1732
gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (widget), &start, &end);
1733
text = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (widget),
1734
&start, &end, FALSE);
1735
}
1736
1737
if (!field_text->text ||
1738
(field_text->text && g_ascii_strcasecmp (field_text->text, text) != 0)) {
1739
g_free (field_text->text);
1740
field_text->text = text;
1741
field->changed = TRUE;
1742
}
1743
}
1744
1745
static GtkWidget *
1746
ev_view_form_field_text_create_widget (EvView *view,
1747
EvFormField *field)
1748
{
1749
EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
1750
GtkWidget *text = NULL;
1751
gchar *txt;
1752
1753
txt = ev_document_forms_form_field_text_get_text (EV_DOCUMENT_FORMS (view->document),
1754
field);
1755
1756
switch (field_text->type) {
1757
case EV_FORM_FIELD_TEXT_FILE_SELECT:
1758
/* TODO */
1759
case EV_FORM_FIELD_TEXT_NORMAL:
1760
text = gtk_entry_new ();
1761
gtk_entry_set_has_frame (GTK_ENTRY (text), FALSE);
1762
gtk_entry_set_max_length (GTK_ENTRY (text), field_text->max_len);
1763
gtk_entry_set_visibility (GTK_ENTRY (text), !field_text->is_password);
1764
1765
if (txt) {
1766
gtk_entry_set_text (GTK_ENTRY (text), txt);
1767
g_free (txt);
1768
}
1769
1770
g_signal_connect (G_OBJECT (text), "changed",
1771
G_CALLBACK (ev_view_form_field_text_changed),
1772
field);
1773
g_signal_connect_after (G_OBJECT (text), "activate",
1774
G_CALLBACK (ev_view_form_field_destroy),
1775
view);
1776
break;
1777
case EV_FORM_FIELD_TEXT_MULTILINE: {
1778
GtkTextBuffer *buffer;
1779
1780
text = gtk_text_view_new ();
1781
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
1782
1783
if (txt) {
1784
gtk_text_buffer_set_text (buffer, txt, -1);
1785
g_free (txt);
1786
}
1787
1788
g_signal_connect (G_OBJECT (buffer), "changed",
1789
G_CALLBACK (ev_view_form_field_text_changed),
1790
field);
1791
}
1792
break;
1793
}
1794
1795
g_object_weak_ref (G_OBJECT (text),
1796
(GWeakNotify)ev_view_form_field_text_save,
1797
view);
1798
1799
return text;
1800
}
1801
1802
static void
1803
ev_view_form_field_choice_save (EvView *view,
1804
GtkWidget *widget)
1805
{
1806
EvFormField *field;
1807
1808
if (!view->document)
1809
return;
1810
1811
field = g_object_get_data (G_OBJECT (widget), "form-field");
1812
1813
if (field->changed) {
1814
GList *l;
1815
EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
1816
GdkRegion *field_region;
1817
1818
field_region = ev_view_form_field_get_region (view, field);
1819
1820
if (field_choice->is_editable) {
1821
ev_document_forms_form_field_choice_set_text (EV_DOCUMENT_FORMS (view->document),
1822
field, field_choice->text);
1823
} else {
1824
ev_document_forms_form_field_choice_unselect_all (EV_DOCUMENT_FORMS (view->document), field);
1825
for (l = field_choice->selected_items; l; l = g_list_next (l)) {
1826
ev_document_forms_form_field_choice_select_item (EV_DOCUMENT_FORMS (view->document),
1827
field,
1828
GPOINTER_TO_INT (l->data));
1829
}
1830
}
1831
field->changed = FALSE;
1832
ev_view_reload_page (view, field->page->index, field_region);
1833
gdk_region_destroy (field_region);
1834
}
1835
}
1836
1837
static void
1838
ev_view_form_field_choice_changed (GtkWidget *widget,
1839
EvFormField *field)
1840
{
1841
EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
1842
1843
if (GTK_IS_COMBO_BOX (widget)) {
1844
gint item;
1845
1846
item = gtk_combo_box_get_active (GTK_COMBO_BOX (widget));
1847
if (!field_choice->selected_items ||
1848
GPOINTER_TO_INT (field_choice->selected_items->data) != item) {
1849
g_list_free (field_choice->selected_items);
1850
field_choice->selected_items = NULL;
1851
field_choice->selected_items = g_list_prepend (field_choice->selected_items,
1852
GINT_TO_POINTER (item));
1853
field->changed = TRUE;
1854
}
1855
1856
if (GTK_IS_COMBO_BOX_ENTRY (widget)) {
1857
gchar *text;
1858
1859
text = gtk_combo_box_get_active_text (GTK_COMBO_BOX (widget));
1860
if (!field_choice->text ||
1861
(field_choice->text && g_ascii_strcasecmp (field_choice->text, text) != 0)) {
1862
g_free (field_choice->text);
1863
field_choice->text = text;
1864
field->changed = TRUE;
1865
}
1866
}
1867
} else if (GTK_IS_TREE_SELECTION (widget)) {
1868
GtkTreeSelection *selection = GTK_TREE_SELECTION (widget);
1869
GtkTreeModel *model;
1870
GList *items, *l;
1871
1872
items = gtk_tree_selection_get_selected_rows (selection, &model);
1873
g_list_free (field_choice->selected_items);
1874
field_choice->selected_items = NULL;
1875
1876
for (l = items; l && l->data; l = g_list_next (l)) {
1877
GtkTreeIter iter;
1878
GtkTreePath *path = (GtkTreePath *)l->data;
1879
gint item;
1880
1881
gtk_tree_model_get_iter (model, &iter, path);
1882
gtk_tree_model_get (model, &iter, 1, &item, -1);
1883
1884
field_choice->selected_items = g_list_prepend (field_choice->selected_items,
1885
GINT_TO_POINTER (item));
1886
1887
gtk_tree_path_free (path);
1888
}
1889
1890
g_list_free (items);
1891
1892
field->changed = TRUE;
1893
}
1894
}
1895
1896
static GtkWidget *
1897
ev_view_form_field_choice_create_widget (EvView *view,
1898
EvFormField *field)
1899
{
1900
EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
1901
GtkWidget *choice;
1902
GtkTreeModel *model;
1903
gint n_items, i;
1904
gint selected_item = 0;
1905
1906
n_items = ev_document_forms_form_field_choice_get_n_items (EV_DOCUMENT_FORMS (view->document),
1907
field);
1908
model = GTK_TREE_MODEL (gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT));
1909
for (i = 0; i < n_items; i++) {
1910
GtkTreeIter iter;
1911
gchar *item;
1912
1913
item = ev_document_forms_form_field_choice_get_item (EV_DOCUMENT_FORMS (view->document),
1914
field, i);
1915
if (ev_document_forms_form_field_choice_is_item_selected (
1916
EV_DOCUMENT_FORMS (view->document), field, i)) {
1917
selected_item = i;
1918
/* FIXME: we need a get_selected_items function in poppler */
1919
field_choice->selected_items = g_list_prepend (field_choice->selected_items,
1920
GINT_TO_POINTER (i));
1921
}
1922
1923
if (item) {
1924
gtk_list_store_append (GTK_LIST_STORE (model), &iter);
1925
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
1926
0, item,
1927
1, i,
1928
-1);
1929
g_free (item);
1930
}
1931
}
1932
1933
if (field_choice->type == EV_FORM_FIELD_CHOICE_LIST) {
1934
GtkCellRenderer *renderer;
1935
GtkWidget *tree_view;
1936
GtkTreeSelection *selection;
1937
1938
tree_view = gtk_tree_view_new_with_model (model);
1939
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), FALSE);
1940
1941
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
1942
if (field_choice->multi_select) {
1943
gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE);
1944
}
1945
1946
/* TODO: set selected items */
1947
1948
renderer = gtk_cell_renderer_text_new ();
1949
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
1950
0,
1951
"choix", renderer,
1952
"text", 0,
1953
NULL);
1954
1955
choice = gtk_scrolled_window_new (NULL, NULL);
1956
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (choice),
1957
GTK_POLICY_AUTOMATIC,
1958
GTK_POLICY_AUTOMATIC);
1959
gtk_container_add (GTK_CONTAINER (choice), tree_view);
1960
gtk_widget_show (tree_view);
1961
1962
g_signal_connect (G_OBJECT (selection), "changed",
1963
G_CALLBACK (ev_view_form_field_choice_changed),
1964
field);
1965
g_signal_connect_after (G_OBJECT (selection), "changed",
1966
G_CALLBACK (ev_view_form_field_destroy),
1967
view);
1968
} else if (field_choice->is_editable) { /* ComboBoxEntry */
1969
gchar *text;
1970
1971
choice = gtk_combo_box_entry_new_with_model (model, 0);
1972
text = ev_document_forms_form_field_choice_get_text (EV_DOCUMENT_FORMS (view->document), field);
1973
if (text) {
1974
gtk_entry_set_text (GTK_ENTRY (gtk_bin_get_child (GTK_BIN (choice))), text);
1975
g_free (text);
1976
}
1977
1978
g_signal_connect (G_OBJECT (choice), "changed",
1979
G_CALLBACK (ev_view_form_field_choice_changed),
1980
field);
1981
g_signal_connect_after (G_OBJECT (GTK_BIN (choice)->child), "activate",
1982
G_CALLBACK (ev_view_form_field_destroy),
1983
view);
1984
} else { /* ComboBoxText */
1985
GtkCellRenderer *renderer;
1986
1987
choice = gtk_combo_box_new_with_model (model);
1988
renderer = gtk_cell_renderer_text_new ();
1989
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (choice),
1990
renderer, TRUE);
1991
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (choice),
1992
renderer,
1993
"text", 0,
1994
NULL);
1995
gtk_combo_box_set_active (GTK_COMBO_BOX (choice), selected_item);
1996
gtk_combo_box_popup (GTK_COMBO_BOX (choice));
1997
1998
g_signal_connect (G_OBJECT (choice), "changed",
1999
G_CALLBACK (ev_view_form_field_choice_changed),
2000
field);
2001
g_signal_connect_after (G_OBJECT (choice), "changed",
2002
G_CALLBACK (ev_view_form_field_destroy),
2003
view);
2004
}
2005
2006
g_object_unref (model);
2007
2008
g_object_weak_ref (G_OBJECT (choice),
2009
(GWeakNotify)ev_view_form_field_choice_save,
2010
view);
2011
2012
return choice;
2013
}
2014
2015
static void
2016
ev_view_handle_form_field (EvView *view,
2017
EvFormField *field,
2018
gdouble x,
2019
gdouble y)
2020
{
2021
GtkWidget *field_widget = NULL;
2022
GList *form_field_mapping;
2023
EvRectangle field_area;
2024
GdkRectangle view_area;
2025
2026
if (field->is_read_only)
2027
return;
2028
2029
if (EV_IS_FORM_FIELD_BUTTON (field)) {
2030
field_widget = ev_view_form_field_button_create_widget (view, field);
2031
} else if (EV_IS_FORM_FIELD_TEXT (field)) {
2032
field_widget = ev_view_form_field_text_create_widget (view, field);
2033
} else if (EV_IS_FORM_FIELD_CHOICE (field)) {
2034
field_widget = ev_view_form_field_choice_create_widget (view, field);
2035
} else if (EV_IS_FORM_FIELD_SIGNATURE (field)) {
2036
/* TODO */
2037
}
2038
2039
/* Form field doesn't require a widget */
2040
if (!field_widget)
2041
return;
2042
2043
g_object_set_data_full (G_OBJECT (field_widget), "form-field",
2044
g_object_ref (field),
2045
(GDestroyNotify)g_object_unref);
2046
2047
form_field_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache, field->page->index);
2048
ev_form_field_mapping_get_area (form_field_mapping, field, &field_area);
2049
2050
doc_rect_to_view_rect (view, field->page->index, &field_area, &view_area);
2051
view_area.x -= view->scroll_x;
2052
view_area.y -= view->scroll_y;
2053
2054
gtk_layout_put (GTK_LAYOUT (view), field_widget, view_area.x, view_area.y);
2055
gtk_widget_show (field_widget);
2056
gtk_widget_grab_focus (field_widget);
2057
}
2058
2059
/*** GtkWidget implementation ***/
2060
2061
static void
2062
ev_view_size_request_continuous_dual_page (EvView *view,
2063
GtkRequisition *requisition)
2064
{
2065
int max_width;
2066
gint n_pages;
2067
GtkBorder border;
2068
2069
ev_page_cache_get_max_width (view->page_cache, view->rotation,
2070
view->scale, &max_width);
2071
compute_border (view, max_width, max_width, &border);
2072
2073
n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
2074
2075
requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
2076
get_page_y_offset (view, n_pages, view->scale, &requisition->height);
2077
2078
if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2079
requisition->width = 1;
2080
} else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2081
requisition->width = 1;
2082
/* FIXME: This could actually be set on one page docs or docs
2083
* with a strange aspect ratio. */
2084
/* requisition->height = 1;*/
2085
}
2086
}
2087
2088
static void
2089
ev_view_size_request_continuous (EvView *view,
2090
GtkRequisition *requisition)
2091
{
2092
int max_width;
2093
int n_pages;
2094
GtkBorder border;
2095
2096
2097
ev_page_cache_get_max_width (view->page_cache, view->rotation,
2098
view->scale, &max_width);
2099
n_pages = ev_page_cache_get_n_pages (view->page_cache);
2100
compute_border (view, max_width, max_width, &border);
2101
2102
requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
2103
get_page_y_offset (view, n_pages, view->scale, &requisition->height);
2104
2105
if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2106
requisition->width = 1;
2107
} else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2108
requisition->width = 1;
2109
/* FIXME: This could actually be set on one page docs or docs
2110
* with a strange aspect ratio. */
2111
/* requisition->height = 1;*/
2112
}
2113
}
2114
2115
static void
2116
ev_view_size_request_dual_page (EvView *view,
2117
GtkRequisition *requisition)
2118
{
2119
GtkBorder border;
2120
gint width, height;
2121
2122
/* Find the largest of the two. */
2123
ev_page_cache_get_size (view->page_cache,
2124
view->current_page,
2125
view->rotation,
2126
view->scale,
2127
&width, &height);
2128
if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
2129
gint width_2, height_2;
2130
ev_page_cache_get_size (view->page_cache,
2131
view->current_page + 1,
2132
view->rotation,
2133
view->scale,
2134
&width_2, &height_2);
2135
if (width_2 > width) {
2136
width = width_2;
2137
height = height_2;
2138
}
2139
}
2140
compute_border (view, width, height, &border);
2141
2142
requisition->width = ((width + border.left + border.right) * 2) +
2143
(view->spacing * 3);
2144
requisition->height = (height + border.top + border.bottom) +
2145
(view->spacing * 2);
2146
2147
if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2148
requisition->width = 1;
2149
} else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2150
requisition->width = 1;
2151
requisition->height = 1;
2152
}
2153
}
2154
2155
static void
2156
ev_view_size_request_single_page (EvView *view,
2157
GtkRequisition *requisition)
2158
{
2159
GtkBorder border;
2160
gint width, height;
2161
2162
ev_page_cache_get_size (view->page_cache,
2163
view->current_page,
2164
view->rotation,
2165
view->scale,
2166
&width, &height);
2167
compute_border (view, width, height, &border);
2168
2169
requisition->width = width + border.left + border.right + (2 * view->spacing);
2170
requisition->height = height + border.top + border.bottom + (2 * view->spacing);
2171
2172
if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2173
requisition->width = 1;
2174
requisition->height = height + border.top + border.bottom + (2 * view->spacing);
2175
} else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2176
requisition->width = 1;
2177
requisition->height = 1;
2178
}
2179
}
2180
2181
static void
2182
ev_view_size_request (GtkWidget *widget,
2183
GtkRequisition *requisition)
2184
{
2185
EvView *view = EV_VIEW (widget);
2186
2187
if (view->document == NULL) {
2188
requisition->width = 1;
2189
requisition->height = 1;
2190
return;
2191
}
2192
2193
if (view->presentation) {
2194
requisition->width = 1;
2195
requisition->height = 1;
2196
return;
2197
}
2198
2199
if (view->continuous && view->dual_page)
2200
ev_view_size_request_continuous_dual_page (view, requisition);
2201
else if (view->continuous)
2202
ev_view_size_request_continuous (view, requisition);
2203
else if (view->dual_page)
2204
ev_view_size_request_dual_page (view, requisition);
2205
else
2206
ev_view_size_request_single_page (view, requisition);
2207
}
2208
2209
static void
2210
ev_view_size_allocate (GtkWidget *widget,
2211
GtkAllocation *allocation)
2212
{
2213
EvView *view = EV_VIEW (widget);
2214
GList *children, *l;
2215
2216
GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
2217
2218
if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2219
view->sizing_mode == EV_SIZING_BEST_FIT) {
2220
2221
g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
2222
2223
ev_view_size_request (widget, &widget->requisition);
2224
}
2225
2226
view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
2227
view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
2228
2229
if (view->document)
2230
view_update_range_and_current_page (view);
2231
2232
view->pending_scroll = SCROLL_TO_KEEP_POSITION;
2233
view->pending_resize = FALSE;
2234
2235
children = gtk_container_get_children (GTK_CONTAINER (widget));
2236
for (l = children; l && l->data; l = g_list_next (l)) {
2237
EvFormField *field;
2238
EvRectangle field_area;
2239
GdkRectangle view_area;
2240
GList *form_field_mapping;
2241
GtkAllocation child_allocation;
2242
GtkRequisition child_requisition;
2243
GtkWidget *child = (GtkWidget *)l->data;
2244
2245
field = g_object_get_data (G_OBJECT (child), "form-field");
2246
if (!field)
2247
continue;
2248
2249
form_field_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
2250
field->page->index);
2251
ev_form_field_mapping_get_area (form_field_mapping, field, &field_area);
2252
2253
doc_rect_to_view_rect (view, field->page->index, &field_area, &view_area);
2254
view_area.x -= view->scroll_x;
2255
view_area.y -= view->scroll_y;
2256
2257
gtk_widget_size_request (child, &child_requisition);
2258
if (child_requisition.width != view_area.width ||
2259
child_requisition.height != view_area.height)
2260
gtk_widget_set_size_request (child, view_area.width, view_area.height);
2261
2262
gtk_container_child_get (GTK_CONTAINER (widget),
2263
child,
2264
"x", &child_allocation.x,
2265
"y", &child_allocation.y,
2266
NULL);
2267
if (child_allocation.x != view_area.x ||
2268
child_allocation.y != view_area.y) {
2269
gtk_layout_move (GTK_LAYOUT (widget), child, view_area.x, view_area.y);
2270
}
2271
}
2272
g_list_free (children);
2273
}
2274
2275
static void
2276
ev_view_realize (GtkWidget *widget)
2277
{
2278
EvView *view = EV_VIEW (widget);
2279
2280
if (GTK_WIDGET_CLASS (ev_view_parent_class)->realize)
2281
(* GTK_WIDGET_CLASS (ev_view_parent_class)->realize) (widget);
2282
2283
gdk_window_set_events (view->layout.bin_window,
2284
(gdk_window_get_events (view->layout.bin_window) |
2285
GDK_EXPOSURE_MASK |
2286
GDK_BUTTON_PRESS_MASK |
2287
GDK_BUTTON_RELEASE_MASK |
2288
GDK_SCROLL_MASK |
2289
GDK_KEY_PRESS_MASK |
2290
GDK_POINTER_MOTION_MASK |
2291
GDK_POINTER_MOTION_HINT_MASK |
2292
GDK_ENTER_NOTIFY_MASK |
2293
GDK_LEAVE_NOTIFY_MASK));
2294
2295
if (view->presentation)
2296
gdk_window_set_background (view->layout.bin_window, &widget->style->black);
2297
else
2298
gdk_window_set_background (view->layout.bin_window, &widget->style->mid [GTK_STATE_NORMAL]);
2299
}
2300
2301
static gboolean
2302
ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
2303
{
2304
EvView *view = EV_VIEW (widget);
2305
guint state;
2306
2307
state = event->state & gtk_accelerator_get_default_mod_mask ();
2308
2309
if (state == GDK_CONTROL_MASK && view->presentation == FALSE) {
2310
ev_view_set_sizing_mode (view, EV_SIZING_FREE);
2311
2312
if (event->direction == GDK_SCROLL_UP ||
2313
event->direction == GDK_SCROLL_LEFT) {
2314
if (ev_view_can_zoom_in (view)) {
2315
ev_view_zoom_in (view);
2316
}
2317
} else {
2318
if (ev_view_can_zoom_out (view)) {
2319
ev_view_zoom_out (view);
2320
}
2321
}
2322
2323
return TRUE;
2324
}
2325
2326
view->jump_to_find_result = FALSE;
2327
2328
/* Shift+Wheel scrolls the in the perpendicular direction */
2329
if (state & GDK_SHIFT_MASK) {
2330
if (event->direction == GDK_SCROLL_UP)
2331
event->direction = GDK_SCROLL_LEFT;
2332
else if (event->direction == GDK_SCROLL_LEFT)
2333
event->direction = GDK_SCROLL_UP;
2334
else if (event->direction == GDK_SCROLL_DOWN)
2335
event->direction = GDK_SCROLL_RIGHT;
2336
else if (event->direction == GDK_SCROLL_RIGHT)
2337
event->direction = GDK_SCROLL_DOWN;
2338
2339
event->state &= ~GDK_SHIFT_MASK;
2340
state &= ~GDK_SHIFT_MASK;
2341
}
2342
2343
if (state == 0 && view->presentation) {
2344
switch (event->direction) {
2345
case GDK_SCROLL_DOWN:
2346
case GDK_SCROLL_RIGHT:
2347
ev_view_next_page (view);
2348
break;
2349
case GDK_SCROLL_UP:
2350
case GDK_SCROLL_LEFT:
2351
ev_view_previous_page (view);
2352
break;
2353
}
2354
2355
return TRUE;
2356
}
2357
2358
return FALSE;
2359
}
2360
2361
static EvViewSelection *
2362
find_selection_for_page (EvView *view,
2363
gint page)
2364
{
2365
GList *list;
2366
2367
for (list = view->selection_info.selections; list != NULL; list = list->next) {
2368
EvViewSelection *selection;
2369
2370
selection = (EvViewSelection *) list->data;
2371
2372
if (selection->page == page)
2373
return selection;
2374
}
2375
2376
return NULL;
2377
}
2378
2379
static void
2380
draw_end_presentation_page (EvView *view,
2381
GdkRectangle *page_area)
2382
{
2383
PangoLayout *layout;
2384
PangoFontDescription *font_desc;
2385
gchar *markup;
2386
const gchar *text = _("End of presentation. Press Escape to exit.");
2387
2388
if (view->presentation_state != EV_PRESENTATION_END)
2389
return;
2390
2391
layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), NULL);
2392
markup = g_strdup_printf ("<span foreground=\"white\">%s</span>", text);
2393
pango_layout_set_markup (layout, markup, -1);
2394
g_free (markup);
2395
2396
font_desc = pango_font_description_new ();
2397
pango_font_description_set_size (font_desc, 16 * PANGO_SCALE);
2398
pango_layout_set_font_description (layout, font_desc);
2399
2400
gtk_paint_layout (GTK_WIDGET (view)->style,
2401
view->layout.bin_window,
2402
GTK_WIDGET_STATE (view),
2403
FALSE,
2404
page_area,
2405
GTK_WIDGET (view),
2406
NULL,
2407
page_area->x + 15,
2408
page_area->y + 15,
2409
layout);
2410
2411
pango_font_description_free (font_desc);
2412
g_object_unref (layout);
2413
}
2414
2415
static gboolean
2416
ev_view_expose_event (GtkWidget *widget,
2417
GdkEventExpose *event)
2418
{
2419
EvView *view = EV_VIEW (widget);
2420
cairo_t *cr;
2421
gint i;
2422
2423
if (view->animation && ev_transition_animation_ready (view->animation)) {
2424
GdkRectangle page_area;
2425
GtkBorder border;
2426
2427
if (get_page_extents (view, view->current_page, &page_area, &border)) {
2428
cr = gdk_cairo_create (view->layout.bin_window);
2429
2430
/* normalize to x=0, y=0 */
2431
cairo_translate (cr, page_area.x, page_area.y);
2432
page_area.x = page_area.y = 0;
2433
2434
ev_transition_animation_paint (view->animation, cr, page_area);
2435
cairo_destroy (cr);
2436
}
2437
2438
return TRUE;
2439
}
2440
2441
if (view->presentation) {
2442
switch (view->presentation_state) {
2443
case EV_PRESENTATION_END: {
2444
GdkRectangle area = {0};
2445
2446
area.width = widget->allocation.width;
2447
area.height = widget->allocation.height;
2448
2449
draw_end_presentation_page (view, &area);
2450
}
2451
return FALSE;
2452
case EV_PRESENTATION_BLACK:
2453
case EV_PRESENTATION_WHITE:
2454
return FALSE;
2455
case EV_PRESENTATION_NORMAL:
2456
default:
2457
break;
2458
}
2459
} else if (view->loading) {
2460
GdkRectangle area = {0};
2461
2462
area.width = widget->allocation.width;
2463
area.height = widget->allocation.height;
2464
2465
draw_loading_text (view,
2466
&area,
2467
&(event->area));
2468
}
2469
2470
if (view->document == NULL)
2471
return FALSE;
2472
2473
cr = gdk_cairo_create (view->layout.bin_window);
2474
2475
for (i = view->start_page; i <= view->end_page; i++) {
2476
GdkRectangle page_area;
2477
GtkBorder border;
2478
gboolean page_ready = TRUE;
2479
2480
if (!get_page_extents (view, i, &page_area, &border))
2481
continue;
2482
2483
page_area.x -= view->scroll_x;
2484
page_area.y -= view->scroll_y;
2485
2486
draw_one_page (view, i, cr, &page_area, &border, &(event->area), &page_ready);
2487
2488
if (page_ready && view->find_pages && view->highlight_find_results)
2489
highlight_find_results (view, i);
2490
}
2491
2492
cairo_destroy (cr);
2493
2494
if (GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event)
2495
(* GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event) (widget, event);
2496
2497
return FALSE;
2498
}
2499
2500
static gboolean
2501
ev_view_do_popup_menu (EvView *view,
2502
gdouble x,
2503
gdouble y)
2504
{
2505
EvLink *link;
2506
EvImage *image;
2507
2508
image = ev_view_get_image_at_location (view, x, y);
2509
if (image) {
2510
g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, image);
2511
return TRUE;
2512
}
2513
2514
link = ev_view_get_link_at_location (view, x, y);
2515
if (link) {
2516
g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
2517
return TRUE;
2518
}
2519
2520
g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, NULL);
2521
2522
return TRUE;
2523
}
2524
2525
static gboolean
2526
ev_view_popup_menu (GtkWidget *widget)
2527
{
2528
gint x, y;
2529
2530
gtk_widget_get_pointer (widget, &x, &y);
2531
return ev_view_do_popup_menu (EV_VIEW (widget), x, y);
2532
}
2533
2534
static void
2535
get_link_area (EvView *view,
2536
gint x,
2537
gint y,
2538
EvLink *link,
2539
GdkRectangle *area)
2540
{
2541
EvRectangle ev_rect;
2542
GList *link_mapping;
2543
gint page;
2544
gint x_offset = 0, y_offset = 0;
2545
2546
x += view->scroll_x;
2547
y += view->scroll_y;
2548
2549
find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
2550
2551
link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
2552
ev_link_mapping_get_area (link_mapping, link, &ev_rect);
2553
2554
doc_rect_to_view_rect (view, page, &ev_rect, area);
2555
area->y -= view->scroll_y ;
2556
}
2557
2558
static gboolean
2559
ev_view_query_tooltip (GtkWidget *widget,
2560
gint x,
2561
gint y,
2562
gboolean keyboard_tip,
2563
GtkTooltip *tooltip)
2564
{
2565
EvView *view = EV_VIEW (widget);
2566
EvLink *link;
2567
gchar *text;
2568
2569
link = ev_view_get_link_at_location (view, x, y);
2570
if (!link)
2571
return FALSE;
2572
2573
text = tip_from_link (view, link);
2574
if (text && g_utf8_validate (text, -1, NULL)) {
2575
GdkRectangle link_area;
2576
2577
get_link_area (view, x, y, link, &link_area);
2578
gtk_tooltip_set_text (tooltip, text);
2579
gtk_tooltip_set_tip_area (tooltip, &link_area);
2580
}
2581
g_free (text);
2582
2583
return TRUE;
2584
}
2585
2586
static void
2587
start_selection_for_event (EvView *view,
2588
GdkEventButton *event)
2589
{
2590
EvSelectionStyle style;
2591
2592
clear_selection (view);
2593
2594
view->selection_info.start.x = event->x + view->scroll_x;
2595
view->selection_info.start.y = event->y + view->scroll_y;
2596
2597
switch (event->type) {
2598
case GDK_2BUTTON_PRESS:
2599
style = EV_SELECTION_STYLE_WORD;
2600
break;
2601
case GDK_3BUTTON_PRESS:
2602
style = EV_SELECTION_STYLE_LINE;
2603
break;
2604
default:
2605
style = EV_SELECTION_STYLE_GLYPH;
2606
break;
2607
}
2608
2609
view->selection_info.style = style;
2610
}
2611
2612
static gboolean
2613
ev_view_button_press_event (GtkWidget *widget,
2614
GdkEventButton *event)
2615
{
2616
EvView *view = EV_VIEW (widget);
2617
2618
if (!view->document)
2619
return FALSE;
2620
2621
if (!GTK_WIDGET_HAS_FOCUS (widget)) {
2622
gtk_widget_grab_focus (widget);
2623
}
2624
2625
view->pressed_button = event->button;
2626
view->selection_info.in_drag = FALSE;
2627
2628
if (view->scroll_info.autoscrolling)
2629
return TRUE;
2630
2631
switch (event->button) {
2632
case 1: {
2633
EvImage *image;
2634
EvFormField *field;
2635
2636
if (EV_IS_SELECTION (view->document) && view->selection_info.selections) {
2637
if (event->type == GDK_3BUTTON_PRESS) {
2638
start_selection_for_event (view, event);
2639
} else if (location_in_selected_text (view,
2640
event->x + view->scroll_x,
2641
event->y + view->scroll_y)) {
2642
view->selection_info.in_drag = TRUE;
2643
} else {
2644
start_selection_for_event (view, event);
2645
}
2646
2647
gtk_widget_queue_draw (widget);
2648
} else if ((field = ev_view_get_form_field_at_location (view, event->x, event->y))) {
2649
ev_view_remove_all (view);
2650
ev_view_handle_form_field (view, field, event->x, event->y);
2651
} else if (!location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y) &&
2652
(image = ev_view_get_image_at_location (view, event->x, event->y))) {
2653
if (view->image_dnd_info.image)
2654
g_object_unref (view->image_dnd_info.image);
2655
view->image_dnd_info.image = g_object_ref (image);
2656
view->image_dnd_info.in_drag = TRUE;
2657
2658
view->image_dnd_info.start.x = event->x + view->scroll_x;
2659
view->image_dnd_info.start.y = event->y + view->scroll_y;
2660
} else {
2661
ev_view_remove_all (view);
2662
2663
if (EV_IS_SELECTION (view->document))
2664
start_selection_for_event (view, event);
2665
}
2666
}
2667
return TRUE;
2668
case 2:
2669
/* use root coordinates as reference point because
2670
* scrolling changes window relative coordinates */
2671
view->drag_info.start.x = event->x_root;
2672
view->drag_info.start.y = event->y_root;
2673
view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
2674
view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
2675
2676
ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
2677
2678
return TRUE;
2679
case 3:
2680
view->scroll_info.start_y = event->y;
2681
return ev_view_do_popup_menu (view, event->x, event->y);
2682
}
2683
2684
return FALSE;
2685
}
2686
2687
static void
2688
ev_view_remove_all (EvView *view)
2689
{
2690
GList *children, *child;
2691
2692
children = gtk_container_get_children (GTK_CONTAINER (view));
2693
for (child = children; child && child->data; child = g_list_next (child)) {
2694
gtk_container_remove (GTK_CONTAINER (view),
2695
GTK_WIDGET (child->data));
2696
}
2697
g_list_free (children);
2698
}
2699
2700
/*** Drag and Drop ***/
2701
static void
2702
ev_view_drag_data_get (GtkWidget *widget,
2703
GdkDragContext *context,
2704
GtkSelectionData *selection_data,
2705
guint info,
2706
guint time)
2707
{
2708
EvView *view = EV_VIEW (widget);
2709
2710
switch (info) {
2711
case TARGET_DND_TEXT:
2712
if (EV_IS_SELECTION (view->document) &&
2713
view->selection_info.selections) {
2714
gchar *text;
2715
2716
text = get_selected_text (view);
2717
gtk_selection_data_set_text (selection_data,
2718
text,
2719
strlen (text));
2720
g_free (text);
2721
}
2722
break;
2723
case TARGET_DND_IMAGE:
2724
if (view->image_dnd_info.image) {
2725
GdkPixbuf *pixbuf;
2726
2727
ev_document_doc_mutex_lock ();
2728
pixbuf = ev_document_images_get_image (EV_DOCUMENT_IMAGES (view->document),
2729
view->image_dnd_info.image);
2730
ev_document_doc_mutex_unlock ();
2731
2732
gtk_selection_data_set_pixbuf (selection_data, pixbuf);
2733
g_object_unref (pixbuf);
2734
}
2735
break;
2736
case TARGET_DND_URI:
2737
if (view->image_dnd_info.image) {
2738
GdkPixbuf *pixbuf;
2739
const gchar *tmp_uri;
2740
gchar *uris[2];
2741
2742
ev_document_doc_mutex_lock ();
2743
pixbuf = ev_document_images_get_image (EV_DOCUMENT_IMAGES (view->document),
2744
view->image_dnd_info.image);
2745
ev_document_doc_mutex_unlock ();
2746
2747
tmp_uri = ev_image_save_tmp (view->image_dnd_info.image, pixbuf);
2748
g_object_unref (pixbuf);
2749
2750
uris[0] = (gchar *)tmp_uri;
2751
uris[1] = NULL;
2752
gtk_selection_data_set_uris (selection_data, uris);
2753
}
2754
}
2755
}
2756
2757
static gboolean
2758
ev_view_drag_motion (GtkWidget *widget,
2759
GdkDragContext *context,
2760
gint x,
2761
gint y,
2762
guint time)
2763
{
2764
if (gtk_drag_get_source_widget (context) == widget)
2765
gdk_drag_status (context, 0, time);
2766
else
2767
gdk_drag_status (context, context->suggested_action, time);
2768
2769
return TRUE;
2770
}
2771
2772
static gboolean
2773
selection_update_idle_cb (EvView *view)
2774
{
2775
compute_selections (view,
2776
view->selection_info.style,
2777
&view->selection_info.start,
2778
&view->motion);
2779
view->selection_update_id = 0;
2780
return FALSE;
2781
}
2782
2783
static gboolean
2784
selection_scroll_timeout_cb (EvView *view)
2785
{
2786
gint x, y, shift = 0;
2787
GtkWidget *widget = GTK_WIDGET (view);
2788
2789
gtk_widget_get_pointer (widget, &x, &y);
2790
2791
if (y > widget->allocation.height) {
2792
shift = (y - widget->allocation.height) / 2;
2793
} else if (y < 0) {
2794
shift = y / 2;
2795
}
2796
2797
if (shift)
2798
gtk_adjustment_set_value (view->vadjustment,
2799
CLAMP (view->vadjustment->value + shift,
2800
view->vadjustment->lower,
2801
view->vadjustment->upper -
2802
view->vadjustment->page_size));
2803
2804
if (x > widget->allocation.width) {
2805
shift = (x - widget->allocation.width) / 2;
2806
} else if (x < 0) {
2807
shift = x / 2;
2808
}
2809
2810
if (shift)
2811
gtk_adjustment_set_value (view->hadjustment,
2812
CLAMP (view->hadjustment->value + shift,
2813
view->hadjustment->lower,
2814
view->hadjustment->upper -
2815
view->hadjustment->page_size));
2816
2817
return TRUE;
2818
}
2819
2820
static gboolean
2821
ev_view_drag_update_momentum (EvView *view)
2822
{
2823
int i;
2824
if (!view->drag_info.in_drag)
2825
return FALSE;
2826
2827
for (i = DRAG_HISTORY - 1; i > 0; i--) {
2828
view->drag_info.buffer[i].x = view->drag_info.buffer[i-1].x;
2829
view->drag_info.buffer[i].y = view->drag_info.buffer[i-1].y;
2830
}
2831
2832
/* Momentum is a moving average of 10ms granularity over
2833
* the last 100ms with each 10ms stored in buffer.
2834
*/
2835
2836
view->drag_info.momentum.x = (view->drag_info.buffer[DRAG_HISTORY - 1].x - view->drag_info.buffer[0].x);
2837
view->drag_info.momentum.y = (view->drag_info.buffer[DRAG_HISTORY - 1].y - view->drag_info.buffer[0].y);
2838
2839
return TRUE;
2840
}
2841
2842
static gboolean
2843
ev_view_scroll_drag_release (EvView *view)
2844
{
2845
gdouble dhadj_value, dvadj_value;
2846
gdouble oldhadjustment, oldvadjustment;
2847
2848
view->drag_info.momentum.x /= 1.2;
2849
view->drag_info.momentum.y /= 1.2; /* Alter these constants to change "friction" */
2850
2851
dhadj_value = view->hadjustment->page_size *
2852
(gdouble)view->drag_info.momentum.x / GTK_WIDGET (view)->allocation.width;
2853
dvadj_value = view->vadjustment->page_size *
2854
(gdouble)view->drag_info.momentum.y / GTK_WIDGET (view)->allocation.height;
2855
2856
oldhadjustment = gtk_adjustment_get_value (view->hadjustment);
2857
oldvadjustment = gtk_adjustment_get_value (view->vadjustment);
2858
2859
if (((oldhadjustment + dhadj_value) > (view->hadjustment->upper - view->hadjustment->page_size)) ||
2860
((oldhadjustment + dhadj_value) < 0))
2861
view->drag_info.momentum.x *= -0.5; /* 0.5 rather than 1 means the edges absorb some momentum */
2862
if (((oldvadjustment + dvadj_value) > (view->vadjustment->upper - view->vadjustment->page_size)) ||
2863
((oldvadjustment + dvadj_value) < 0))
2864
view->drag_info.momentum.y *= -0.5;
2865
2866
gtk_adjustment_set_value (view->hadjustment,
2867
MIN (oldhadjustment + dhadj_value,
2868
view->hadjustment->upper - view->hadjustment->page_size));
2869
gtk_adjustment_set_value (view->vadjustment,
2870
MIN (oldvadjustment + dvadj_value,
2871
view->vadjustment->upper - view->vadjustment->page_size));
2872
2873
if (((view->drag_info.momentum.x < 1) && (view->drag_info.momentum.x > -1)) &&
2874
((view->drag_info.momentum.y < 1) && (view->drag_info.momentum.y > -1)))
2875
return FALSE;
2876
else
2877
return TRUE;
2878
}
2879
2880
static gboolean
2881
ev_view_motion_notify_event (GtkWidget *widget,
2882
GdkEventMotion *event)
2883
{
2884
EvView *view = EV_VIEW (widget);
2885
gint x, y;
2886
2887
if (!view->document)
2888
return FALSE;
2889
2890
2891
if (event->is_hint || event->window != view->layout.bin_window) {
2892
gtk_widget_get_pointer (widget, &x, &y);
2893
} else {
2894
x = event->x;
2895
y = event->y;
2896
}
2897
2898
if (view->scroll_info.autoscrolling) {
2899
view->scroll_info.last_y = y;
2900
return TRUE;
2901
}
2902
2903
if (view->selection_info.in_drag) {
2904
if (gtk_drag_check_threshold (widget,
2905
view->selection_info.start.x,
2906
view->selection_info.start.y,
2907
x, y)) {
2908
GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
2909
2910
gtk_target_list_add_text_targets (target_list, TARGET_DND_TEXT);
2911
2912
gtk_drag_begin (widget, target_list,
2913
GDK_ACTION_COPY,
2914
1, (GdkEvent *)event);
2915
2916
view->selection_info.in_drag = FALSE;
2917
2918
gtk_target_list_unref (target_list);
2919
2920
return TRUE;
2921
}
2922
} else if (view->image_dnd_info.in_drag) {
2923
if (gtk_drag_check_threshold (widget,
2924
view->selection_info.start.x,
2925
view->selection_info.start.y,
2926
x, y)) {
2927
GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
2928
2929
gtk_target_list_add_uri_targets (target_list, TARGET_DND_URI);
2930
gtk_target_list_add_image_targets (target_list, TARGET_DND_IMAGE, TRUE);
2931
2932
gtk_drag_begin (widget, target_list,
2933
GDK_ACTION_COPY,
2934
1, (GdkEvent *)event);
2935
2936
view->image_dnd_info.in_drag = FALSE;
2937
2938
gtk_target_list_unref (target_list);
2939
2940
return TRUE;
2941
}
2942
}
2943
2944
switch (view->pressed_button) {
2945
case 1:
2946
/* For the Evince 0.4.x release, we limit selection to un-rotated
2947
* documents only.
2948
*/
2949
if (view->rotation != 0)
2950
return FALSE;
2951
2952
/* Schedule timeout to scroll during selection and additionally
2953
* scroll once to allow arbitrary speed. */
2954
if (!view->selection_scroll_id)
2955
view->selection_scroll_id = g_timeout_add (SCROLL_TIME,
2956
(GSourceFunc)selection_scroll_timeout_cb,
2957
view);
2958
else
2959
selection_scroll_timeout_cb (view);
2960
2961
view->selection_info.in_selection = TRUE;
2962
view->motion.x = x + view->scroll_x;
2963
view->motion.y = y + view->scroll_y;
2964
2965
/* Queue an idle to handle the motion. We do this because
2966
* handling any selection events in the motion could be slower
2967
* than new motion events reach us. We always put it in the
2968
* idle to make sure we catch up and don't visibly lag the
2969
* mouse. */
2970
if (!view->selection_update_id)
2971
view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
2972
2973
return TRUE;
2974
case 2:
2975
if (!view->drag_info.in_drag) {
2976
gboolean start;
2977
int i;
2978
2979
start = gtk_drag_check_threshold (widget,
2980
view->drag_info.start.x,
2981
view->drag_info.start.y,
2982
event->x_root,
2983
event->y_root);
2984
view->drag_info.in_drag = start;
2985
view->drag_info.drag_timeout_id = g_timeout_add (10,
2986
(GSourceFunc)ev_view_drag_update_momentum, view);
2987
/* Set 100 to choose how long it takes to build up momentum */
2988
/* Clear out previous momentum info: */
2989
for (i = 0; i < DRAG_HISTORY; i++) {
2990
view->drag_info.buffer[i].x = event->x;
2991
view->drag_info.buffer[i].y = event->y;
2992
}
2993
view->drag_info.momentum.x = 0;
2994
view->drag_info.momentum.y = 0;
2995
}
2996
2997
if (view->drag_info.in_drag) {
2998
int dx, dy;
2999
gdouble dhadj_value, dvadj_value;
3000
3001
view->drag_info.buffer[0].x = event->x;
3002
view->drag_info.buffer[0].y = event->y;
3003
3004
dx = event->x_root - view->drag_info.start.x;
3005
dy = event->y_root - view->drag_info.start.y;
3006
3007
dhadj_value = view->hadjustment->page_size *
3008
(gdouble)dx / widget->allocation.width;
3009
dvadj_value = view->vadjustment->page_size *
3010
(gdouble)dy / widget->allocation.height;
3011
3012
/* clamp scrolling to visible area */
3013
gtk_adjustment_set_value (view->hadjustment,
3014
MIN(view->drag_info.hadj - dhadj_value,
3015
view->hadjustment->upper -
3016
view->hadjustment->page_size));
3017
gtk_adjustment_set_value (view->vadjustment,
3018
MIN(view->drag_info.vadj - dvadj_value,
3019
view->vadjustment->upper -
3020
view->vadjustment->page_size));
3021
3022
return TRUE;
3023
}
3024
3025
break;
3026
default:
3027
ev_view_handle_cursor_over_xy (view, x, y);
3028
}
3029
3030
return FALSE;
3031
}
3032
3033
static gboolean
3034
ev_view_button_release_event (GtkWidget *widget,
3035
GdkEventButton *event)
3036
{
3037
EvView *view = EV_VIEW (widget);
3038
EvLink *link = NULL;
3039
3040
view->image_dnd_info.in_drag = FALSE;
3041
3042
if (view->scroll_info.autoscrolling) {
3043
ev_view_autoscroll_stop (view);
3044
view->pressed_button = -1;
3045
3046
return TRUE;
3047
}
3048
3049
if (view->drag_info.in_drag) {
3050
view->drag_info.release_timeout_id =
3051
g_timeout_add (20,
3052
(GSourceFunc)ev_view_scroll_drag_release, view);
3053
}
3054
3055
if (view->document && !view->drag_info.in_drag && view->pressed_button != 3) {
3056
link = ev_view_get_link_at_location (view, event->x, event->y);
3057
}
3058
3059
view->drag_info.in_drag = FALSE;
3060
3061
if (view->pressed_button == 2) {
3062
ev_view_handle_cursor_over_xy (view, event->x, event->y);
3063
}
3064
3065
view->pressed_button = -1;
3066
3067
if (view->selection_scroll_id) {
3068
g_source_remove (view->selection_scroll_id);
3069
view->selection_scroll_id = 0;
3070
}
3071
if (view->selection_update_id) {
3072
g_source_remove (view->selection_update_id);
3073
view->selection_update_id = 0;
3074
}
3075
3076
if (!view->selection_info.in_selection &&
3077
view->selection_info.style != EV_SELECTION_STYLE_GLYPH) {
3078
compute_selections (view,
3079
view->selection_info.style,
3080
&(view->selection_info.start),
3081
&(view->selection_info.start));
3082
}
3083
3084
if (view->selection_info.selections) {
3085
clear_link_selected (view);
3086
ev_view_update_primary_selection (view);
3087
3088
if (view->selection_info.in_drag) {
3089
clear_selection (view);
3090
gtk_widget_queue_draw (widget);
3091
}
3092
3093
view->selection_info.in_drag = FALSE;
3094
} else if (link) {
3095
if (event->button == 2) {
3096
EvLinkAction *action;
3097
EvLinkActionType type;
3098
3099
action = ev_link_get_action (link);
3100
if (!action)
3101
return FALSE;
3102
3103
type = ev_link_action_get_action_type (action);
3104
if (type == EV_LINK_ACTION_TYPE_GOTO_DEST) {
3105
g_signal_emit (view,
3106
signals[SIGNAL_EXTERNAL_LINK],
3107
0, action);
3108
}
3109
} else {
3110
ev_view_handle_link (view, link);
3111
}
3112
} else if (view->presentation) {
3113
switch (event->button) {
3114
case 1:
3115
ev_view_next_page (view);
3116
return TRUE;
3117
case 3:
3118
ev_view_previous_page (view);
3119
return TRUE;
3120
}
3121
}
3122
3123
return FALSE;
3124
}
3125
3126
/* Goto Window */
3127
/* Cut and paste from gtkwindow.c */
3128
static void
3129
send_focus_change (GtkWidget *widget,
3130
gboolean in)
3131
{
3132
GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
3133
3134
g_object_ref (widget);
3135
3136
if (in)
3137
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
3138
else
3139
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
3140
3141
fevent->focus_change.type = GDK_FOCUS_CHANGE;
3142
fevent->focus_change.window = g_object_ref (widget->window);
3143
fevent->focus_change.in = in;
3144
3145
gtk_widget_event (widget, fevent);
3146
3147
g_object_notify (G_OBJECT (widget), "has-focus");
3148
3149
g_object_unref (widget);
3150
gdk_event_free (fevent);
3151
}
3152
3153
static void
3154
ev_view_goto_window_hide (EvView *view)
3155
{
3156
/* send focus-in event */
3157
send_focus_change (view->goto_entry, FALSE);
3158
gtk_widget_hide (view->goto_window);
3159
gtk_entry_set_text (GTK_ENTRY (view->goto_entry), "");
3160
}
3161
3162
static gboolean
3163
ev_view_goto_window_delete_event (GtkWidget *widget,
3164
GdkEventAny *event,
3165
EvView *view)
3166
{
3167
ev_view_goto_window_hide (view);
3168
3169
return TRUE;
3170
}
3171
3172
static gboolean
3173
key_is_numeric (guint keyval)
3174
{
3175
return ((keyval >= GDK_0 && keyval <= GDK_9) ||
3176
(keyval >= GDK_KP_0 && keyval <= GDK_KP_9));
3177
}
3178
3179
static gboolean
3180
ev_view_goto_window_key_press_event (GtkWidget *widget,
3181
GdkEventKey *event,
3182
EvView *view)
3183
{
3184
switch (event->keyval) {
3185
case GDK_Escape:
3186
case GDK_Tab:
3187
case GDK_KP_Tab:
3188
case GDK_ISO_Left_Tab:
3189
ev_view_goto_window_hide (view);
3190
return TRUE;
3191
case GDK_Return:
3192
case GDK_KP_Enter:
3193
case GDK_ISO_Enter:
3194
case GDK_BackSpace:
3195
case GDK_Delete:
3196
return FALSE;
3197
default:
3198
if (!key_is_numeric (event->keyval))
3199
return TRUE;
3200
}
3201
3202
return FALSE;
3203
}
3204
3205
static gboolean
3206
ev_view_goto_window_button_press_event (GtkWidget *widget,
3207
GdkEventButton *event,
3208
EvView *view)
3209
{
3210
ev_view_goto_window_hide (view);
3211
3212
return TRUE;
3213
}
3214
3215
static void
3216
ev_view_goto_entry_activate (GtkEntry *entry,
3217
EvView *view)
3218
{
3219
const gchar *text;
3220
gint page;
3221
3222
text = gtk_entry_get_text (entry);
3223
page = atoi (text) - 1;
3224
3225
ev_view_goto_window_hide (view);
3226
3227
if (page >= 0 &&
3228
page < ev_page_cache_get_n_pages (view->page_cache))
3229
ev_page_cache_set_current_page (view->page_cache, page);
3230
}
3231
3232
static void
3233
ev_view_goto_window_create (EvView *view)
3234
{
3235
GtkWidget *frame, *hbox, *toplevel, *label;
3236
3237
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (view));
3238
3239
if (view->goto_window) {
3240
if (GTK_WINDOW (toplevel)->group)
3241
gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
3242
GTK_WINDOW (view->goto_window));
3243
else if (GTK_WINDOW (view->goto_window)->group)
3244
gtk_window_group_remove_window (GTK_WINDOW (view->goto_window)->group,
3245
GTK_WINDOW (view->goto_window));
3246
return;
3247
}
3248
3249
view->goto_window = gtk_window_new (GTK_WINDOW_POPUP);
3250
3251
if (GTK_WINDOW (toplevel)->group)
3252
gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
3253
GTK_WINDOW (view->goto_window));
3254
3255
gtk_window_set_modal (GTK_WINDOW (view->goto_window), TRUE);
3256
3257
g_signal_connect (view->goto_window, "delete_event",
3258
G_CALLBACK (ev_view_goto_window_delete_event),
3259
view);
3260
g_signal_connect (view->goto_window, "key_press_event",
3261
G_CALLBACK (ev_view_goto_window_key_press_event),
3262
view);
3263
g_signal_connect (view->goto_window, "button_press_event",
3264
G_CALLBACK (ev_view_goto_window_button_press_event),
3265
view);
3266
3267
frame = gtk_frame_new (NULL);
3268
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
3269
gtk_container_add (GTK_CONTAINER (view->goto_window), frame);
3270
gtk_widget_show (frame);
3271
3272
hbox = gtk_hbox_new (FALSE, 0);
3273
gtk_container_set_border_width (GTK_CONTAINER (hbox), 3);
3274
gtk_container_add (GTK_CONTAINER (frame), hbox);
3275
gtk_widget_show (hbox);
3276
3277
label = gtk_label_new(_("Jump to page:"));
3278
gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 3);
3279
gtk_widget_show (label);
3280
gtk_widget_realize (label);
3281
3282
view->goto_entry = gtk_entry_new ();
3283
g_signal_connect (view->goto_entry, "activate",
3284
G_CALLBACK (ev_view_goto_entry_activate),
3285
view);
3286
gtk_box_pack_start (GTK_BOX (hbox), view->goto_entry, TRUE, TRUE, 0);
3287
gtk_widget_show (view->goto_entry);
3288
gtk_widget_realize (view->goto_entry);
3289
}
3290
3291
static void
3292
ev_view_goto_entry_grab_focus (EvView *view)
3293
{
3294
GtkWidgetClass *entry_parent_class;
3295
3296
entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (view->goto_entry));
3297
(entry_parent_class->grab_focus) (view->goto_entry);
3298
3299
send_focus_change (view->goto_entry, TRUE);
3300
}
3301
3302
static void
3303
ev_view_goto_window_send_key_event (EvView *view,
3304
GdkEvent *event)
3305
{
3306
GdkEventKey *new_event;
3307
GdkScreen *screen;
3308
3309
/* Move goto window off screen */
3310
screen = gtk_widget_get_screen (GTK_WIDGET (view));
3311
gtk_window_move (GTK_WINDOW (view->goto_window),
3312
gdk_screen_get_width (screen) + 1,
3313
gdk_screen_get_height (screen) + 1);
3314
gtk_widget_show (view->goto_window);
3315
3316
new_event = (GdkEventKey *) gdk_event_copy (event);
3317
g_object_unref (new_event->window);
3318
new_event->window = g_object_ref (view->goto_window->window);
3319
gtk_widget_realize (view->goto_window);
3320
3321
gtk_widget_event (view->goto_window, (GdkEvent *)new_event);
3322
gdk_event_free ((GdkEvent *)new_event);
3323
gtk_widget_hide (view->goto_window);
3324
}
3325
3326
static gboolean
3327
ev_view_key_press_event (GtkWidget *widget,
3328
GdkEventKey *event)
3329
{
3330
EvView *view = EV_VIEW (widget);
3331
EvPresentationState current;
3332
3333
if (!view->document)
3334
return FALSE;
3335
3336
if (!view->presentation ||
3337
view->presentation_state == EV_PRESENTATION_END)
3338
return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
3339
3340
3341
current = view->presentation_state;
3342
3343
switch (event->keyval) {
3344
case GDK_b:
3345
case GDK_B:
3346
case GDK_period:
3347
case GDK_KP_Decimal:
3348
view->presentation_state =
3349
(view->presentation_state == EV_PRESENTATION_BLACK) ?
3350
EV_PRESENTATION_NORMAL : EV_PRESENTATION_BLACK;
3351
break;
3352
case GDK_w:
3353
case GDK_W:
3354
view->presentation_state =
3355
(view->presentation_state == EV_PRESENTATION_WHITE) ?
3356
EV_PRESENTATION_NORMAL : EV_PRESENTATION_WHITE;
3357
break;
3358
default:
3359
if (view->presentation_state == EV_PRESENTATION_BLACK ||
3360
view->presentation_state == EV_PRESENTATION_WHITE) {
3361
view->presentation_state = EV_PRESENTATION_NORMAL;
3362
}
3363
}
3364
3365
if (current == view->presentation_state) {
3366
if (ev_page_cache_get_n_pages (view->page_cache) > 1 &&
3367
key_is_numeric (event->keyval)) {
3368
gint x, y;
3369
3370
ev_view_goto_window_create (view);
3371
ev_view_goto_window_send_key_event (view, (GdkEvent *)event);
3372
gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
3373
gtk_window_move (GTK_WINDOW (view->goto_window), x, y);
3374
gtk_widget_show (view->goto_window);
3375
ev_view_goto_entry_grab_focus (view);
3376
3377
return TRUE;
3378
}
3379
3380
return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
3381
}
3382
3383
switch (view->presentation_state) {
3384
case EV_PRESENTATION_NORMAL:
3385
case EV_PRESENTATION_BLACK:
3386
gdk_window_set_background (view->layout.bin_window,
3387
&widget->style->black);
3388
break;
3389
case EV_PRESENTATION_WHITE:
3390
gdk_window_set_background (view->layout.bin_window,
3391
&widget->style->white);
3392
break;
3393
default:
3394
return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
3395
}
3396
3397
gtk_widget_queue_draw (widget);
3398
return TRUE;
3399
}
3400
3401
static gint
3402
ev_view_focus_in (GtkWidget *widget,
3403
GdkEventFocus *event)
3404
{
3405
if (EV_VIEW (widget)->pixbuf_cache)
3406
ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
3407
gtk_widget_queue_draw (widget);
3408
3409
return FALSE;
3410
}
3411
3412
static gint
3413
ev_view_focus_out (GtkWidget *widget,
3414
GdkEventFocus *event)
3415
{
3416
if (EV_VIEW (widget)->goto_window)
3417
ev_view_goto_window_hide (EV_VIEW (widget));
3418
3419
if (EV_VIEW (widget)->pixbuf_cache)
3420
ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
3421
gtk_widget_queue_draw (widget);
3422
3423
return FALSE;
3424
}
3425
3426
static gboolean
3427
ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event)
3428
{
3429
EvView *view = EV_VIEW (widget);
3430
3431
if (view->cursor != EV_VIEW_CURSOR_NORMAL)
3432
ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3433
3434
return FALSE;
3435
}
3436
3437
static gboolean
3438
ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing *event)
3439
{
3440
EvView *view = EV_VIEW (widget);
3441
3442
ev_view_handle_cursor_over_xy (view, event->x, event->y);
3443
3444
return FALSE;
3445
}
3446
3447
static void
3448
ev_view_style_set (GtkWidget *widget,
3449
GtkStyle *old_style)
3450
{
3451
if (EV_VIEW (widget)->pixbuf_cache)
3452
ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
3453
3454
GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
3455
}
3456
3457
/*** Drawing ***/
3458
3459
static guint32
3460
ev_gdk_color_to_rgb (const GdkColor *color)
3461
{
3462
guint32 result;
3463
result = (0xff0000 | (color->red & 0xff00));
3464
result <<= 8;
3465
result |= ((color->green & 0xff00) | (color->blue >> 8));
3466
return result;
3467
}
3468
3469
static void
3470
draw_rubberband (GtkWidget *widget, GdkWindow *window,
3471
const GdkRectangle *rect, guchar alpha)
3472
{
3473
GdkGC *gc;
3474
GdkPixbuf *pixbuf;
3475
GdkColor *fill_color_gdk;
3476
guint fill_color;
3477
3478
fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
3479
fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
3480
3481
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
3482
rect->width, rect->height);
3483
gdk_pixbuf_fill (pixbuf, fill_color);
3484
3485
gdk_draw_pixbuf (window, NULL, pixbuf,
3486
0, 0,
3487
rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
3488
rect->width, rect->height,
3489
GDK_RGB_DITHER_NONE,
3490
0, 0);
3491
3492
g_object_unref (pixbuf);
3493
3494
gc = gdk_gc_new (window);
3495
gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
3496
gdk_draw_rectangle (window, gc, FALSE,
3497
rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
3498
rect->width - 1,
3499
rect->height - 1);
3500
g_object_unref (gc);
3501
3502
gdk_color_free (fill_color_gdk);
3503
}
3504
3505
3506
static void
3507
highlight_find_results (EvView *view, int page)
3508
{
3509
gint i, n_results = 0;
3510
3511
n_results = ev_view_find_get_n_results (view, page);
3512
3513
for (i = 0; i < n_results; i++) {
3514
EvRectangle *rectangle;
3515
GdkRectangle view_rectangle;
3516
guchar alpha;
3517
3518
if (i == view->find_result && page == view->current_page) {
3519
alpha = 0x90;
3520
} else {
3521
alpha = 0x20;
3522
}
3523
3524
rectangle = ev_view_find_get_result (view, page, i);
3525
doc_rect_to_view_rect (view, page, rectangle, &view_rectangle);
3526
draw_rubberband (GTK_WIDGET (view), view->layout.bin_window,
3527
&view_rectangle, alpha);
3528
}
3529
}
3530
3531
static void
3532
draw_loading_text (EvView *view,
3533
GdkRectangle *page_area,
3534
GdkRectangle *expose_area)
3535
{
3536
cairo_t *cr;
3537
gint width, height;
3538
3539
if (!view->loading_text) {
3540
const gchar *loading_text = _("Loading...");
3541
PangoLayout *layout;
3542
PangoFontDescription *font_desc;
3543
PangoRectangle logical_rect;
3544
gint target_width;
3545
gdouble real_scale;
3546
3547
ev_document_fc_mutex_lock ();
3548
3549
layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text);
3550
3551
font_desc = pango_font_description_new ();
3552
3553
/* We set the font to be 10 points, get the size, and scale appropriately */
3554
pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
3555
pango_layout_set_font_description (layout, font_desc);
3556
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
3557
3558
target_width = MAX (page_area->width / 2, 1);
3559
real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10);
3560
pango_font_description_set_size (font_desc, (int)real_scale);
3561
pango_layout_set_font_description (layout, font_desc);
3562
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
3563
3564
view->loading_text = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
3565
logical_rect.width,
3566
logical_rect.height);
3567
cr = cairo_create (view->loading_text);
3568
cairo_set_source_rgb (cr,
3569
155 / (double)255,
3570
155 / (double)255,
3571
155 / (double)255);
3572
pango_cairo_show_layout (cr, layout);
3573
cairo_destroy (cr);
3574
3575
pango_font_description_free (font_desc);
3576
g_object_unref (layout);
3577
3578
ev_document_fc_mutex_unlock ();
3579
}
3580
3581
width = (page_area->width - cairo_image_surface_get_width (view->loading_text)) / 2;
3582
height = (page_area->height - cairo_image_surface_get_height (view->loading_text)) / 2;
3583
3584
cr = gdk_cairo_create (view->layout.bin_window);
3585
cairo_translate (cr,
3586
page_area->x + width,
3587
page_area->y + height);
3588
cairo_set_source_surface (cr, view->loading_text, 0, 0);
3589
cairo_paint (cr);
3590
cairo_destroy (cr);
3591
}
3592
3593
static void
3594
draw_one_page (EvView *view,
3595
gint page,
3596
cairo_t *cr,
3597
GdkRectangle *page_area,
3598
GtkBorder *border,
3599
GdkRectangle *expose_area,
3600
gboolean *page_ready)
3601
{
3602
GdkRectangle overlap;
3603
GdkRectangle real_page_area;
3604
3605
g_assert (view->document);
3606
3607
if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
3608
return;
3609
3610
/* Render the document itself */
3611
real_page_area = *page_area;
3612
3613
real_page_area.x += border->left;
3614
real_page_area.y += border->top;
3615
real_page_area.width -= (border->left + border->right);
3616
real_page_area.height -= (border->top + border->bottom);
3617
*page_ready = TRUE;
3618
3619
if (!view->presentation) {
3620
gint current_page;
3621
3622
current_page = ev_page_cache_get_current_page (view->page_cache);
3623
ev_document_misc_paint_one_page (view->layout.bin_window,
3624
GTK_WIDGET (view),
3625
page_area, border,
3626
page == current_page);
3627
}
3628
3629
if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
3630
gint width, height;
3631
gint page_width, page_height;
3632
cairo_surface_t *page_surface = NULL;
3633
gint selection_width, selection_height;
3634
cairo_surface_t *selection_surface = NULL;
3635
3636
page_surface = ev_pixbuf_cache_get_surface (view->pixbuf_cache, page);
3637
3638
if (!page_surface) {
3639
if (!view->presentation) {
3640
draw_loading_text (view,
3641
&real_page_area,
3642
expose_area);
3643
}
3644
3645
*page_ready = FALSE;
3646
3647
return;
3648
}
3649
3650
ev_page_cache_get_size (view->page_cache,
3651
page, view->rotation,
3652
view->scale,
3653
&width, &height);
3654
3655
page_width = cairo_image_surface_get_width (page_surface);
3656
page_height = cairo_image_surface_get_height (page_surface);
3657
3658
cairo_save (cr);
3659
cairo_translate (cr, overlap.x, overlap.y);
3660
3661
if (width != page_width || height != page_height) {
3662
cairo_pattern_set_filter (cairo_get_source (cr),
3663
CAIRO_FILTER_FAST);
3664
cairo_scale (cr,
3665
(gdouble)width / page_width,
3666
(gdouble)height / page_height);
3667
}
3668
3669
cairo_surface_set_device_offset (page_surface,
3670
overlap.x - real_page_area.x,
3671
overlap.y - real_page_area.y);
3672
cairo_set_source_surface (cr, page_surface, 0, 0);
3673
cairo_paint (cr);
3674
cairo_restore (cr);
3675
3676
/* Get the selection pixbuf iff we have something to draw */
3677
if (find_selection_for_page (view, page) &&
3678
view->selection_mode == EV_VIEW_SELECTION_TEXT) {
3679
selection_surface =
3680
ev_pixbuf_cache_get_selection_surface (view->pixbuf_cache,
3681
page,
3682
view->scale,
3683
NULL);
3684
}
3685
3686
if (!selection_surface) {
3687
return;
3688
}
3689
3690
selection_width = cairo_image_surface_get_width (selection_surface);
3691
selection_height = cairo_image_surface_get_height (selection_surface);
3692
3693
cairo_save (cr);
3694
cairo_translate (cr, overlap.x, overlap.y);
3695
3696
if (width != selection_width || height != selection_height) {
3697
cairo_pattern_set_filter (cairo_get_source (cr),
3698
CAIRO_FILTER_FAST);
3699
cairo_scale (cr,
3700
(gdouble)width / selection_width,
3701
(gdouble)height / selection_height);
3702
}
3703
3704
cairo_surface_set_device_offset (selection_surface,
3705
overlap.x - real_page_area.x,
3706
overlap.y - real_page_area.y);
3707
cairo_set_source_surface (cr, selection_surface, 0, 0);
3708
cairo_paint (cr);
3709
cairo_restore (cr);
3710
}
3711
}
3712
3713
/*** GObject functions ***/
3714
3715
static void
3716
ev_view_finalize (GObject *object)
3717
{
3718
EvView *view = EV_VIEW (object);
3719
3720
clear_selection (view);
3721
clear_link_selected (view);
3722
3723
if (view->image_dnd_info.image)
3724
g_object_unref (view->image_dnd_info.image);
3725
view->image_dnd_info.image = NULL;
3726
3727
G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
3728
}
3729
3730
static void
3731
ev_view_destroy (GtkObject *object)
3732
{
3733
EvView *view = EV_VIEW (object);
3734
3735
if (view->document) {
3736
g_object_unref (view->document);
3737
view->document = NULL;
3738
}
3739
3740
if (view->pixbuf_cache) {
3741
g_object_unref (view->pixbuf_cache);
3742
view->pixbuf_cache = NULL;
3743
}
3744
3745
if (view->goto_window) {
3746
gtk_widget_destroy (view->goto_window);
3747
view->goto_window = NULL;
3748
view->goto_entry = NULL;
3749
}
3750
3751
if (view->selection_scroll_id) {
3752
g_source_remove (view->selection_scroll_id);
3753
view->selection_scroll_id = 0;
3754
}
3755
3756
if (view->selection_update_id) {
3757
g_source_remove (view->selection_update_id);
3758
view->selection_update_id = 0;
3759
}
3760
3761
if (view->loading_text) {
3762
cairo_surface_destroy (view->loading_text);
3763
view->loading_text = NULL;
3764
}
3765
3766
if (view->scroll_info.timeout_id) {
3767
g_source_remove (view->scroll_info.timeout_id);
3768
view->scroll_info.timeout_id = 0;
3769
}
3770
3771
if (view->drag_info.drag_timeout_id) {
3772
g_source_remove (view->drag_info.drag_timeout_id);
3773
view->drag_info.drag_timeout_id = 0;
3774
}
3775
3776
if (view->drag_info.release_timeout_id) {
3777
g_source_remove (view->drag_info.release_timeout_id);
3778
view->drag_info.release_timeout_id = 0;
3779
}
3780
3781
ev_view_presentation_transition_stop (view);
3782
3783
ev_view_set_scroll_adjustments (GTK_LAYOUT (view), NULL, NULL);
3784
3785
GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
3786
}
3787
3788
static void
3789
ev_view_set_property (GObject *object,
3790
guint prop_id,
3791
const GValue *value,
3792
GParamSpec *pspec)
3793
{
3794
EvView *view = EV_VIEW (object);
3795
3796
switch (prop_id) {
3797
case PROP_CONTINUOUS:
3798
ev_view_set_continuous (view, g_value_get_boolean (value));
3799
break;
3800
case PROP_DUAL_PAGE:
3801
ev_view_set_dual_page (view, g_value_get_boolean (value));
3802
break;
3803
case PROP_FULLSCREEN:
3804
ev_view_set_fullscreen (view, g_value_get_boolean (value));
3805
break;
3806
case PROP_PRESENTATION:
3807
ev_view_set_presentation (view, g_value_get_boolean (value));
3808
break;
3809
case PROP_SIZING_MODE:
3810
ev_view_set_sizing_mode (view, g_value_get_enum (value));
3811
break;
3812
case PROP_ZOOM:
3813
ev_view_set_zoom (view, g_value_get_double (value), FALSE);
3814
break;
3815
case PROP_ROTATION:
3816
ev_view_set_rotation (view, g_value_get_int (value));
3817
break;
3818
default:
3819
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3820
}
3821
}
3822
3823
static AtkObject *
3824
ev_view_get_accessible (GtkWidget *widget)
3825
{
3826
static gboolean first_time = TRUE;
3827
3828
if (first_time) {
3829
AtkObjectFactory *factory;
3830
AtkRegistry *registry;
3831
GType derived_type;
3832
GType derived_atk_type;
3833
3834
/*
3835
* Figure out whether accessibility is enabled by looking at the
3836
* type of the accessible object which would be created for
3837
* the parent type of EvView.
3838
*/
3839
derived_type = g_type_parent (EV_TYPE_VIEW);
3840
3841
registry = atk_get_default_registry ();
3842
factory = atk_registry_get_factory (registry,
3843
derived_type);
3844
derived_atk_type = atk_object_factory_get_accessible_type (factory);
3845
if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
3846
atk_registry_set_factory_type (registry,
3847
EV_TYPE_VIEW,
3848
ev_view_accessible_factory_get_type ());
3849
first_time = FALSE;
3850
}
3851
return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget);
3852
}
3853
3854
static void
3855
ev_view_get_property (GObject *object,
3856
guint prop_id,
3857
GValue *value,
3858
GParamSpec *pspec)
3859
{
3860
EvView *view = EV_VIEW (object);
3861
3862
switch (prop_id) {
3863
case PROP_CONTINUOUS:
3864
g_value_set_boolean (value, view->continuous);
3865
break;
3866
case PROP_DUAL_PAGE:
3867
g_value_set_boolean (value, view->dual_page);
3868
break;
3869
case PROP_FULLSCREEN:
3870
g_value_set_boolean (value, view->fullscreen);
3871
break;
3872
case PROP_PRESENTATION:
3873
g_value_set_boolean (value, view->presentation);
3874
break;
3875
case PROP_SIZING_MODE:
3876
g_value_set_enum (value, view->sizing_mode);
3877
break;
3878
case PROP_ZOOM:
3879
g_value_set_double (value, view->scale);
3880
break;
3881
case PROP_ROTATION:
3882
g_value_set_int (value, view->rotation);
3883
break;
3884
case PROP_HAS_SELECTION:
3885
g_value_set_boolean (value,
3886
view->selection_info.selections != NULL);
3887
break;
3888
default:
3889
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3890
}
3891
}
3892
3893
static void
3894
ev_view_class_init (EvViewClass *class)
3895
{
3896
GObjectClass *object_class = G_OBJECT_CLASS (class);
3897
GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
3898
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
3899
GtkLayoutClass *layout_class = GTK_LAYOUT_CLASS (class);
3900
GtkBindingSet *binding_set;
3901
3902
object_class->finalize = ev_view_finalize;
3903
object_class->set_property = ev_view_set_property;
3904
object_class->get_property = ev_view_get_property;
3905
3906
widget_class->expose_event = ev_view_expose_event;
3907
widget_class->button_press_event = ev_view_button_press_event;
3908
widget_class->motion_notify_event = ev_view_motion_notify_event;
3909
widget_class->button_release_event = ev_view_button_release_event;
3910
widget_class->key_press_event = ev_view_key_press_event;
3911
widget_class->focus_in_event = ev_view_focus_in;
3912
widget_class->focus_out_event = ev_view_focus_out;
3913
widget_class->get_accessible = ev_view_get_accessible;
3914
widget_class->size_request = ev_view_size_request;
3915
widget_class->size_allocate = ev_view_size_allocate;
3916
widget_class->realize = ev_view_realize;
3917
widget_class->scroll_event = ev_view_scroll_event;
3918
widget_class->enter_notify_event = ev_view_enter_notify_event;
3919
widget_class->leave_notify_event = ev_view_leave_notify_event;
3920
widget_class->style_set = ev_view_style_set;
3921
widget_class->drag_data_get = ev_view_drag_data_get;
3922
widget_class->drag_motion = ev_view_drag_motion;
3923
widget_class->popup_menu = ev_view_popup_menu;
3924
widget_class->query_tooltip = ev_view_query_tooltip;
3925
3926
gtk_object_class->destroy = ev_view_destroy;
3927
3928
layout_class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
3929
3930
class->binding_activated = ev_view_scroll;
3931
3932
signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
3933
G_TYPE_FROM_CLASS (object_class),
3934
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3935
G_STRUCT_OFFSET (EvViewClass, binding_activated),
3936
NULL, NULL,
3937
ev_view_marshal_VOID__ENUM_BOOLEAN,
3938
G_TYPE_NONE, 2,
3939
GTK_TYPE_SCROLL_TYPE,
3940
G_TYPE_BOOLEAN);
3941
3942
signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
3943
G_TYPE_FROM_CLASS (object_class),
3944
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3945
G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
3946
NULL, NULL,
3947
g_cclosure_marshal_VOID__VOID,
3948
G_TYPE_NONE, 0, G_TYPE_NONE);
3949
signals[SIGNAL_HANDLE_LINK] = g_signal_new ("handle-link",
3950
G_TYPE_FROM_CLASS (object_class),
3951
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3952
G_STRUCT_OFFSET (EvViewClass, handle_link),
3953
NULL, NULL,
3954
g_cclosure_marshal_VOID__OBJECT,
3955
G_TYPE_NONE, 1,
3956
G_TYPE_OBJECT);
3957
signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link",
3958
G_TYPE_FROM_CLASS (object_class),
3959
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3960
G_STRUCT_OFFSET (EvViewClass, external_link),
3961
NULL, NULL,
3962
g_cclosure_marshal_VOID__OBJECT,
3963
G_TYPE_NONE, 1,
3964
G_TYPE_OBJECT);
3965
signals[SIGNAL_POPUP_MENU] = g_signal_new ("popup",
3966
G_TYPE_FROM_CLASS (object_class),
3967
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3968
G_STRUCT_OFFSET (EvViewClass, popup_menu),
3969
NULL, NULL,
3970
g_cclosure_marshal_VOID__OBJECT,
3971
G_TYPE_NONE, 1,
3972
G_TYPE_OBJECT);
3973
3974
3975
g_object_class_install_property (object_class,
3976
PROP_CONTINUOUS,
3977
g_param_spec_boolean ("continuous",
3978
"Continuous",
3979
"Continuous scrolling mode",
3980
TRUE,
3981
G_PARAM_READWRITE));
3982
3983
g_object_class_install_property (object_class,
3984
PROP_DUAL_PAGE,
3985
g_param_spec_boolean ("dual-page",
3986
"Dual Page",
3987
"Two pages visible at once",
3988
FALSE,
3989
G_PARAM_READWRITE));
3990
g_object_class_install_property (object_class,
3991
PROP_FULLSCREEN,
3992
g_param_spec_boolean ("fullscreen",
3993
"Full Screen",
3994
"Draw page in a fullscreen fashion",
3995
FALSE,
3996
G_PARAM_READWRITE));
3997
g_object_class_install_property (object_class,
3998
PROP_PRESENTATION,
3999
g_param_spec_boolean ("presentation",
4000
"Presentation",
4001
"Draw page in presentation mode",
4002
TRUE,
4003
G_PARAM_READWRITE));
4004
4005
g_object_class_install_property (object_class,
4006
PROP_SIZING_MODE,
4007
g_param_spec_enum ("sizing-mode",
4008
"Sizing Mode",
4009
"Sizing Mode",
4010
EV_TYPE_SIZING_MODE,
4011
EV_SIZING_FIT_WIDTH,
4012
G_PARAM_READWRITE));
4013
4014
g_object_class_install_property (object_class,
4015
PROP_ZOOM,
4016
g_param_spec_double ("zoom",
4017
"Zoom factor",
4018
"Zoom factor",
4019
0,
4020
G_MAXDOUBLE,
4021
1.0,
4022
G_PARAM_READWRITE));
4023
g_object_class_install_property (object_class,
4024
PROP_ROTATION,
4025
g_param_spec_double ("rotation",
4026
"Rotation",
4027
"Rotation",
4028
0,
4029
360,
4030
0,
4031
G_PARAM_READWRITE));
4032
g_object_class_install_property (object_class,
4033
PROP_HAS_SELECTION,
4034
g_param_spec_boolean ("has-selection",
4035
"Has selection",
4036
"The view has selections",
4037
FALSE,
4038
G_PARAM_READABLE));
4039
4040
binding_set = gtk_binding_set_by_class (class);
4041
4042
add_scroll_binding_keypad (binding_set, GDK_Left, 0, GTK_SCROLL_STEP_BACKWARD, TRUE);
4043
add_scroll_binding_keypad (binding_set, GDK_Right, 0, GTK_SCROLL_STEP_FORWARD, TRUE);
4044
add_scroll_binding_keypad (binding_set, GDK_Left, GDK_MOD1_MASK, GTK_SCROLL_STEP_DOWN, TRUE);
4045
add_scroll_binding_keypad (binding_set, GDK_Right, GDK_MOD1_MASK, GTK_SCROLL_STEP_UP, TRUE);
4046
add_scroll_binding_keypad (binding_set, GDK_Up, 0, GTK_SCROLL_STEP_BACKWARD, FALSE);
4047
add_scroll_binding_keypad (binding_set, GDK_Down, 0, GTK_SCROLL_STEP_FORWARD, FALSE);
4048
add_scroll_binding_keypad (binding_set, GDK_Up, GDK_MOD1_MASK, GTK_SCROLL_STEP_DOWN, FALSE);
4049
add_scroll_binding_keypad (binding_set, GDK_Down, GDK_MOD1_MASK, GTK_SCROLL_STEP_UP, FALSE);
4050
gtk_binding_entry_add_signal (binding_set, GDK_H, 0, "binding_activated", 2, GTK_TYPE_SCROLL_TYPE,
4051
GTK_SCROLL_STEP_BACKWARD, G_TYPE_BOOLEAN, TRUE);
4052
gtk_binding_entry_add_signal (binding_set, GDK_J, 0, "binding_activated", 2, GTK_TYPE_SCROLL_TYPE,
4053
GTK_SCROLL_STEP_FORWARD, G_TYPE_BOOLEAN, FALSE);
4054
gtk_binding_entry_add_signal (binding_set, GDK_K, 0, "binding_activated", 2, GTK_TYPE_SCROLL_TYPE,
4055
GTK_SCROLL_STEP_BACKWARD, G_TYPE_BOOLEAN, FALSE);
4056
gtk_binding_entry_add_signal (binding_set, GDK_L, 0, "binding_activated", 2, GTK_TYPE_SCROLL_TYPE,
4057
GTK_SCROLL_STEP_FORWARD, G_TYPE_BOOLEAN, TRUE);
4058
4059
}
4060
4061
static void
4062
ev_view_init (EvView *view)
4063
{
4064
GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
4065
4066
view->spacing = 5;
4067
view->scale = 1.0;
4068
view->current_page = 0;
4069
view->pressed_button = -1;
4070
view->cursor = EV_VIEW_CURSOR_NORMAL;
4071
view->drag_info.in_drag = FALSE;
4072
view->scroll_info.autoscrolling = FALSE;
4073
view->selection_info.selections = NULL;
4074
view->selection_info.in_selection = FALSE;
4075
view->selection_info.in_drag = FALSE;
4076
view->selection_mode = EV_VIEW_SELECTION_TEXT;
4077
view->continuous = TRUE;
4078
view->dual_page = FALSE;
4079
view->presentation = FALSE;
4080
view->presentation_state = EV_PRESENTATION_NORMAL;
4081
view->fullscreen = FALSE;
4082
view->sizing_mode = EV_SIZING_FIT_WIDTH;
4083
view->pending_scroll = SCROLL_TO_KEEP_POSITION;
4084
view->jump_to_find_result = TRUE;
4085
view->highlight_find_results = FALSE;
4086
4087
gtk_layout_set_hadjustment (GTK_LAYOUT (view), NULL);
4088
gtk_layout_set_vadjustment (GTK_LAYOUT (view), NULL);
4089
}
4090
4091
/*** Callbacks ***/
4092
4093
static void
4094
ev_view_change_page (EvView *view,
4095
gint new_page,
4096
gboolean start_transition)
4097
{
4098
gint x, y;
4099
4100
view->current_page = new_page;
4101
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4102
4103
if (view->presentation && start_transition)
4104
ev_view_presentation_transition_start (view);
4105
4106
gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
4107
ev_view_handle_cursor_over_xy (view, x, y);
4108
4109
gtk_widget_queue_resize (GTK_WIDGET (view));
4110
}
4111
4112
static void
4113
ev_view_transition_animation_finish (EvTransitionAnimation *animation,
4114
EvView *view)
4115
{
4116
g_object_unref (view->animation);
4117
view->animation = NULL;
4118
ev_view_change_page (view, view->current_page, TRUE);
4119
}
4120
4121
/**
4122
* ev_view_transition_animation_cancel:
4123
* @animation: Animation to finish
4124
* @view: An EvView
4125
*
4126
* Does almost the same as cancel, but without scheduling the transition.
4127
*/
4128
4129
static void
4130
ev_view_transition_animation_cancel (EvTransitionAnimation *animation,
4131
EvView *view)
4132
{
4133
g_object_unref (view->animation);
4134
view->animation = NULL;
4135
ev_view_change_page (view, view->current_page, FALSE);
4136
}
4137
4138
static void
4139
ev_view_transition_animation_frame (EvTransitionAnimation *animation,
4140
gdouble progress,
4141
EvView *view)
4142
{
4143
gtk_widget_queue_draw (GTK_WIDGET (view));
4144
}
4145
4146
static void
4147
ev_view_presentation_animation_start (EvView *view,
4148
int new_page)
4149
{
4150
EvTransitionEffect *effect = NULL;
4151
cairo_surface_t *surface;
4152
4153
if (EV_IS_DOCUMENT_TRANSITION (view->document))
4154
effect = ev_document_transition_get_effect (EV_DOCUMENT_TRANSITION (view->document),
4155
view->current_page);
4156
if (!effect)
4157
return;
4158
4159
surface = ev_pixbuf_cache_get_surface (view->pixbuf_cache, view->current_page);
4160
view->animation = ev_transition_animation_new (effect);
4161
ev_transition_animation_set_origin_surface (view->animation, surface);
4162
4163
g_signal_connect (view->animation, "frame",
4164
G_CALLBACK (ev_view_transition_animation_frame), view);
4165
g_signal_connect (view->animation, "finished",
4166
G_CALLBACK (ev_view_transition_animation_finish), view);
4167
}
4168
4169
static void
4170
job_finished_cb (EvPixbufCache *pixbuf_cache,
4171
GdkRegion *region,
4172
EvView *view)
4173
{
4174
if (view->animation) {
4175
cairo_surface_t *surface;
4176
4177
surface = ev_pixbuf_cache_get_surface (pixbuf_cache, view->current_page);
4178
ev_transition_animation_set_dest_surface (view->animation, surface);
4179
}
4180
4181
if (region) {
4182
gdk_window_invalidate_region (view->layout.bin_window,
4183
region, TRUE);
4184
} else {
4185
gtk_widget_queue_draw (GTK_WIDGET (view));
4186
}
4187
}
4188
4189
static void
4190
page_changed_cb (EvPageCache *page_cache,
4191
int new_page,
4192
EvView *view)
4193
{
4194
if (view->current_page != new_page) {
4195
if (view->presentation)
4196
ev_view_presentation_animation_start (view, new_page);
4197
4198
ev_view_change_page (view, new_page, TRUE);
4199
} else {
4200
gtk_widget_queue_draw (GTK_WIDGET (view));
4201
}
4202
4203
view->find_result = 0;
4204
}
4205
4206
static void
4207
on_adjustment_value_changed (GtkAdjustment *adjustment,
4208
EvView *view)
4209
{
4210
int dx = 0, dy = 0;
4211
gint x, y;
4212
GList *children, *l;
4213
4214
if (! GTK_WIDGET_REALIZED (view))
4215
return;
4216
4217
if (view->hadjustment) {
4218
dx = view->scroll_x - (int) view->hadjustment->value;
4219
view->scroll_x = (int) view->hadjustment->value;
4220
} else {
4221
view->scroll_x = 0;
4222
}
4223
4224
if (view->vadjustment) {
4225
dy = view->scroll_y - (int) view->vadjustment->value;
4226
view->scroll_y = (int) view->vadjustment->value;
4227
} else {
4228
view->scroll_y = 0;
4229
}
4230
4231
children = gtk_container_get_children (GTK_CONTAINER (view));
4232
for (l = children; l && l->data; l = g_list_next (l)) {
4233
gint child_x, child_y;
4234
GtkWidget *child = (GtkWidget *)l->data;
4235
4236
gtk_container_child_get (GTK_CONTAINER (view),
4237
child,
4238
"x", &child_x,
4239
"y", &child_y,
4240
NULL);
4241
gtk_layout_move (GTK_LAYOUT (view), child, child_x + dx, child_y + dy);
4242
}
4243
g_list_free (children);
4244
4245
if (view->pending_resize)
4246
gtk_widget_queue_draw (GTK_WIDGET (view));
4247
else
4248
gdk_window_scroll (view->layout.bin_window, dx, dy);
4249
4250
gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
4251
ev_view_handle_cursor_over_xy (view, x, y);
4252
4253
if (view->document)
4254
view_update_range_and_current_page (view);
4255
}
4256
4257
GtkWidget*
4258
ev_view_new (void)
4259
{
4260
GtkWidget *view;
4261
4262
view = g_object_new (EV_TYPE_VIEW, NULL);
4263
4264
return view;
4265
}
4266
4267
static void
4268
setup_caches (EvView *view)
4269
{
4270
view->page_cache = ev_page_cache_get (view->document);
4271
g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
4272
view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
4273
g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
4274
page_changed_cb (view->page_cache,
4275
ev_page_cache_get_current_page (view->page_cache),
4276
view);
4277
}
4278
4279
static void
4280
clear_caches (EvView *view)
4281
{
4282
if (view->pixbuf_cache) {
4283
g_object_unref (view->pixbuf_cache);
4284
view->pixbuf_cache = NULL;
4285
}
4286
4287
if (view->page_cache) {
4288
view->page_cache = NULL;
4289
}
4290
}
4291
4292
void
4293
ev_view_set_loading (EvView *view,
4294
gboolean loading)
4295
{
4296
view->loading = loading;
4297
gtk_widget_queue_draw (GTK_WIDGET (view));
4298
}
4299
4300
static gboolean
4301
ev_view_autoscroll_cb (EvView *view)
4302
{
4303
gdouble speed, value;
4304
4305
/* If the user stops autoscrolling, autoscrolling will be
4306
* set to false but the timeout will continue; stop the timeout: */
4307
if (!view->scroll_info.autoscrolling) {
4308
view->scroll_info.timeout_id = 0;
4309
return FALSE;
4310
}
4311
4312
if (view->scroll_info.last_y > view->scroll_info.start_y &&
4313
(view->scroll_info.last_y < view->scroll_info.start_y))
4314
return TRUE;
4315
4316
/* Replace 100 with your speed of choice: The lower the faster.
4317
* Replace 3 with another speed of choice: The higher, the faster it accelerated
4318
* based on the distance of the starting point from the mouse
4319
* (All also effected by the timeout interval of this callback) */
4320
4321
if (view->scroll_info.start_y > view->scroll_info.last_y)
4322
speed = -pow ((((gdouble)view->scroll_info.start_y - view->scroll_info.last_y) / 100), 3);
4323
else
4324
speed = pow ((((gdouble)view->scroll_info.last_y - view->scroll_info.start_y) / 100), 3);
4325
4326
value = gtk_adjustment_get_value (view->vadjustment);
4327
value = CLAMP (value + speed, 0, view->vadjustment->upper - view->vadjustment->page_size);
4328
gtk_adjustment_set_value (view->vadjustment, value);
4329
4330
return TRUE;
4331
4332
}
4333
4334
void
4335
ev_view_autoscroll_start (EvView *view)
4336
{
4337
gint x, y;
4338
4339
g_return_if_fail (EV_IS_VIEW (view));
4340
4341
if (view->scroll_info.autoscrolling)
4342
return;
4343
4344
view->scroll_info.autoscrolling = TRUE;
4345
view->scroll_info.timeout_id =
4346
g_timeout_add (20, (GSourceFunc)ev_view_autoscroll_cb,
4347
view);
4348
4349
gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
4350
ev_view_handle_cursor_over_xy (view, x, y);
4351
}
4352
4353
void
4354
ev_view_autoscroll_stop (EvView *view)
4355
{
4356
gint x, y;
4357
4358
g_return_if_fail (EV_IS_VIEW (view));
4359
4360
if (!view->scroll_info.autoscrolling)
4361
return;
4362
4363
view->scroll_info.autoscrolling = FALSE;
4364
if (view->scroll_info.timeout_id) {
4365
g_source_remove (view->scroll_info.timeout_id);
4366
view->scroll_info.timeout_id = 0;
4367
}
4368
4369
gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
4370
ev_view_handle_cursor_over_xy (view, x, y);
4371
}
4372
4373
void
4374
ev_view_set_document (EvView *view,
4375
EvDocument *document)
4376
{
4377
g_return_if_fail (EV_IS_VIEW (view));
4378
4379
view->loading = FALSE;
4380
4381
if (document != view->document) {
4382
clear_caches (view);
4383
4384
if (view->document) {
4385
g_object_unref (view->document);
4386
view->page_cache = NULL;
4387
}
4388
4389
view->document = document;
4390
view->find_result = 0;
4391
4392
if (view->document) {
4393
g_object_ref (view->document);
4394
setup_caches (view);
4395
}
4396
4397
gtk_widget_queue_resize (GTK_WIDGET (view));
4398
}
4399
}
4400
4401
static void
4402
ev_view_reload_page (EvView *view,
4403
gint page,
4404
GdkRegion *region)
4405
{
4406
ev_pixbuf_cache_reload_page (view->pixbuf_cache,
4407
region,
4408
page,
4409
view->rotation,
4410
view->scale);
4411
}
4412
4413
void
4414
ev_view_reload (EvView *view)
4415
{
4416
ev_pixbuf_cache_clear (view->pixbuf_cache);
4417
view_update_range_and_current_page (view);
4418
}
4419
4420
/*** Zoom and sizing mode ***/
4421
4422
#define EPSILON 0.0000001
4423
void
4424
ev_view_set_zoom (EvView *view,
4425
double factor,
4426
gboolean relative)
4427
{
4428
double scale;
4429
4430
if (relative)
4431
scale = view->scale * factor;
4432
else
4433
scale = factor;
4434
4435
scale = CLAMP (scale,
4436
view->sizing_mode == EV_SIZING_FREE ? view->min_scale : 0,
4437
view->max_scale);
4438
4439
if (ABS (view->scale - scale) < EPSILON)
4440
return;
4441
4442
if (view->loading_text) {
4443
cairo_surface_destroy (view->loading_text);
4444
view->loading_text = NULL;
4445
}
4446
4447
view->scale = scale;
4448
view->pending_resize = TRUE;
4449
4450
gtk_widget_queue_resize (GTK_WIDGET (view));
4451
4452
g_object_notify (G_OBJECT (view), "zoom");
4453
}
4454
4455
double
4456
ev_view_get_zoom (EvView *view)
4457
{
4458
return view->scale;
4459
}
4460
4461
void
4462
ev_view_set_screen_dpi (EvView *view,
4463
gdouble dpi)
4464
{
4465
g_return_if_fail (EV_IS_VIEW (view));
4466
g_return_if_fail (dpi > 0);
4467
4468
view->dpi = dpi;
4469
view->min_scale = MIN_SCALE * dpi / 72.0;
4470
view->max_scale = MAX_SCALE * dpi / 72.0;
4471
}
4472
4473
gboolean
4474
ev_view_get_continuous (EvView *view)
4475
{
4476
g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4477
4478
return view->continuous;
4479
}
4480
4481
void
4482
ev_view_set_continuous (EvView *view,
4483
gboolean continuous)
4484
{
4485
g_return_if_fail (EV_IS_VIEW (view));
4486
4487
continuous = continuous != FALSE;
4488
4489
if (view->continuous != continuous) {
4490
view->continuous = continuous;
4491
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4492
gtk_widget_queue_resize (GTK_WIDGET (view));
4493
}
4494
4495
g_object_notify (G_OBJECT (view), "continuous");
4496
}
4497
4498
gboolean
4499
ev_view_get_dual_page (EvView *view)
4500
{
4501
g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4502
4503
return view->dual_page;
4504
}
4505
4506
void
4507
ev_view_set_dual_page (EvView *view,
4508
gboolean dual_page)
4509
{
4510
g_return_if_fail (EV_IS_VIEW (view));
4511
4512
dual_page = dual_page != FALSE;
4513
4514
if (view->dual_page == dual_page)
4515
return;
4516
4517
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4518
view->dual_page = dual_page;
4519
/* FIXME: if we're keeping the pixbuf cache around, we should extend the
4520
* preload_cache_size to be 2 if dual_page is set.
4521
*/
4522
gtk_widget_queue_resize (GTK_WIDGET (view));
4523
4524
g_object_notify (G_OBJECT (view), "dual-page");
4525
}
4526
4527
void
4528
ev_view_set_fullscreen (EvView *view,
4529
gboolean fullscreen)
4530
{
4531
g_return_if_fail (EV_IS_VIEW (view));
4532
4533
fullscreen = fullscreen != FALSE;
4534
4535
if (view->fullscreen == fullscreen)
4536
return;
4537
4538
view->fullscreen = fullscreen;
4539
gtk_widget_queue_resize (GTK_WIDGET (view));
4540
4541
g_object_notify (G_OBJECT (view), "fullscreen");
4542
}
4543
4544
gboolean
4545
ev_view_get_fullscreen (EvView *view)
4546
{
4547
g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4548
4549
return view->fullscreen;
4550
}
4551
4552
void
4553
ev_view_set_presentation (EvView *view,
4554
gboolean presentation)
4555
{
4556
g_return_if_fail (EV_IS_VIEW (view));
4557
4558
presentation = presentation != FALSE;
4559
4560
if (view->presentation == presentation)
4561
return;
4562
4563
if (!presentation)
4564
view->presentation_state = EV_PRESENTATION_NORMAL;
4565
4566
view->presentation = presentation;
4567
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4568
4569
if (presentation) {
4570
view->sizing_mode_saved = view->sizing_mode;
4571
view->scale_saved = view->scale;
4572
ev_view_set_sizing_mode (view, EV_SIZING_BEST_FIT);
4573
} else {
4574
ev_view_set_sizing_mode (view, view->sizing_mode_saved);
4575
ev_view_set_zoom (view, view->scale_saved, FALSE);
4576
}
4577
4578
gtk_widget_queue_resize (GTK_WIDGET (view));
4579
4580
if (presentation)
4581
ev_view_presentation_transition_start (view);
4582
else {
4583
ev_view_presentation_transition_stop (view);
4584
4585
if (view->animation) {
4586
/* stop any running animation */
4587
ev_view_transition_animation_cancel (view->animation, view);
4588
}
4589
}
4590
4591
if (GTK_WIDGET_REALIZED (view)) {
4592
if (view->presentation)
4593
gdk_window_set_background (view->layout.bin_window,
4594
>K_WIDGET (view)->style->black);
4595
else
4596
gdk_window_set_background (view->layout.bin_window,
4597
>K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
4598
}
4599
4600
g_object_notify (G_OBJECT (view), "presentation");
4601
}
4602
4603
gboolean
4604
ev_view_get_presentation (EvView *view)
4605
{
4606
g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4607
4608
return view->presentation;
4609
}
4610
4611
static gboolean
4612
transition_next_page (EvView *view)
4613
{
4614
ev_view_next_page (view);
4615
4616
return FALSE;
4617
}
4618
4619
static void
4620
ev_view_presentation_transition_stop (EvView *view)
4621
{
4622
if (view->trans_timeout_id > 0)
4623
g_source_remove (view->trans_timeout_id);
4624
view->trans_timeout_id = 0;
4625
}
4626
4627
static void
4628
ev_view_presentation_transition_start (EvView *view)
4629
{
4630
gdouble duration;
4631
4632
if (!EV_IS_DOCUMENT_TRANSITION (view->document))
4633
return;
4634
4635
ev_view_presentation_transition_stop (view);
4636
4637
duration = ev_document_transition_get_page_duration (EV_DOCUMENT_TRANSITION (view->document),
4638
view->current_page);
4639
if (duration > 0) {
4640
view->trans_timeout_id =
4641
g_timeout_add_seconds (duration,
4642
(GSourceFunc) transition_next_page,
4643
view);
4644
}
4645
}
4646
4647
void
4648
ev_view_set_sizing_mode (EvView *view,
4649
EvSizingMode sizing_mode)
4650
{
4651
g_return_if_fail (EV_IS_VIEW (view));
4652
4653
if (view->sizing_mode == sizing_mode)
4654
return;
4655
4656
view->sizing_mode = sizing_mode;
4657
gtk_widget_queue_resize (GTK_WIDGET (view));
4658
4659
g_object_notify (G_OBJECT (view), "sizing-mode");
4660
}
4661
4662
EvSizingMode
4663
ev_view_get_sizing_mode (EvView *view)
4664
{
4665
g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
4666
4667
return view->sizing_mode;
4668
}
4669
4670
gboolean
4671
ev_view_can_zoom_in (EvView *view)
4672
{
4673
return view->scale * ZOOM_IN_FACTOR <= view->max_scale;
4674
}
4675
4676
gboolean
4677
ev_view_can_zoom_out (EvView *view)
4678
{
4679
return view->scale * ZOOM_OUT_FACTOR >= view->min_scale;
4680
}
4681
4682
void
4683
ev_view_zoom_in (EvView *view)
4684
{
4685
g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
4686
4687
if (view->presentation)
4688
return;
4689
4690
view->pending_scroll = SCROLL_TO_CENTER;
4691
ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
4692
}
4693
4694
void
4695
ev_view_zoom_out (EvView *view)
4696
{
4697
g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
4698
4699
if (view->presentation)
4700
return;
4701
4702
view->pending_scroll = SCROLL_TO_CENTER;
4703
ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
4704
}
4705
4706
void
4707
ev_view_rotate_right (EvView *view)
4708
{
4709
int rotation = view->rotation + 90;
4710
4711
if (rotation >= 360) {
4712
rotation -= 360;
4713
}
4714
4715
ev_view_set_rotation (view, rotation);
4716
}
4717
4718
void
4719
ev_view_rotate_left (EvView *view)
4720
{
4721
int rotation = view->rotation - 90;
4722
4723
if (rotation < 0) {
4724
rotation += 360;
4725
}
4726
4727
ev_view_set_rotation (view, rotation);
4728
}
4729
4730
void
4731
ev_view_set_rotation (EvView *view, int rotation)
4732
{
4733
view->rotation = rotation;
4734
4735
if (view->pixbuf_cache) {
4736
ev_pixbuf_cache_clear (view->pixbuf_cache);
4737
gtk_widget_queue_resize (GTK_WIDGET (view));
4738
}
4739
4740
if (rotation != 0)
4741
clear_selection (view);
4742
4743
g_object_notify (G_OBJECT (view), "rotation");
4744
}
4745
4746
int
4747
ev_view_get_rotation (EvView *view)
4748
{
4749
return view->rotation;
4750
}
4751
4752
static double
4753
zoom_for_size_fit_width (int doc_width,
4754
int doc_height,
4755
int target_width,
4756
int target_height,
4757
int vsb_width)
4758
{
4759
double scale;
4760
4761
scale = (double)target_width / doc_width;
4762
4763
if (doc_height * scale > target_height)
4764
scale = (double) (target_width - vsb_width) / doc_width;
4765
4766
return scale;
4767
}
4768
4769
static double
4770
zoom_for_size_fit_height (int doc_width,
4771
int doc_height,
4772
int target_width,
4773
int target_height,
4774
int vsb_height)
4775
{
4776
double scale;
4777
4778
scale = (double)target_height / doc_height;
4779
4780
if (doc_width * scale > target_width)
4781
scale = (double) (target_height - vsb_height) / doc_height;
4782
4783
return scale;
4784
}
4785
4786
static double
4787
zoom_for_size_best_fit (int doc_width,
4788
int doc_height,
4789
int target_width,
4790
int target_height,
4791
int vsb_width,
4792
int hsb_width)
4793
{
4794
double w_scale;
4795
double h_scale;
4796
4797
w_scale = (double)target_width / doc_width;
4798
h_scale = (double)target_height / doc_height;
4799
4800
if (doc_height * w_scale > target_height)
4801
w_scale = (double) (target_width - vsb_width) / doc_width;
4802
if (doc_width * h_scale > target_width)
4803
h_scale = (double) (target_height - hsb_width) / doc_height;
4804
4805
return MIN (w_scale, h_scale);
4806
}
4807
4808
4809
static void
4810
ev_view_zoom_for_size_presentation (EvView *view,
4811
int width,
4812
int height)
4813
{
4814
int doc_width, doc_height;
4815
gdouble scale;
4816
4817
ev_page_cache_get_size (view->page_cache,
4818
view->current_page,
4819
view->rotation,
4820
1.0,
4821
&doc_width,
4822
&doc_height);
4823
scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
4824
ev_view_set_zoom (view, scale, FALSE);
4825
}
4826
4827
static void
4828
ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
4829
int width,
4830
int height,
4831
int vsb_width,
4832
int hsb_height)
4833
{
4834
int doc_width, doc_height;
4835
GtkBorder border;
4836
gdouble scale;
4837
4838
ev_page_cache_get_max_width (view->page_cache,
4839
view->rotation,
4840
1.0,
4841
&doc_width);
4842
ev_page_cache_get_max_height (view->page_cache,
4843
view->rotation,
4844
1.0,
4845
&doc_height);
4846
compute_border (view, doc_width, doc_height, &border);
4847
4848
doc_width = doc_width * 2;
4849
width -= (2 * (border.left + border.right) + 3 * view->spacing);
4850
height -= (border.top + border.bottom + 2 * view->spacing - 1);
4851
4852
/* FIXME: We really need to calculate the overall height here, not the
4853
* page height. We assume there's always a vertical scrollbar for
4854
* now. We need to fix this. */
4855
if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4856
scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
4857
else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4858
scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
4859
else
4860
g_assert_not_reached ();
4861
4862
ev_view_set_zoom (view, scale, FALSE);
4863
}
4864
4865
static void
4866
ev_view_zoom_for_size_continuous (EvView *view,
4867
int width,
4868
int height,
4869
int vsb_width,
4870
int hsb_height)
4871
{
4872
int doc_width, doc_height;
4873
GtkBorder border;
4874
gdouble scale;
4875
4876
ev_page_cache_get_max_width (view->page_cache,
4877
view->rotation,
4878
1.0,
4879
&doc_width);
4880
ev_page_cache_get_max_height (view->page_cache,
4881
view->rotation,
4882
1.0,
4883
&doc_height);
4884
compute_border (view, doc_width, doc_height, &border);
4885
4886
width -= (border.left + border.right + 2 * view->spacing);
4887
height -= (border.top + border.bottom + 2 * view->spacing - 1);
4888
4889
/* FIXME: We really need to calculate the overall height here, not the
4890
* page height. We assume there's always a vertical scrollbar for
4891
* now. We need to fix this. */
4892
if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4893
scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
4894
else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4895
scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
4896
else
4897
g_assert_not_reached ();
4898
4899
ev_view_set_zoom (view, scale, FALSE);
4900
}
4901
4902
static void
4903
ev_view_zoom_for_size_dual_page (EvView *view,
4904
int width,
4905
int height,
4906
int vsb_width,
4907
int hsb_height)
4908
{
4909
GtkBorder border;
4910
gint doc_width, doc_height;
4911
gdouble scale;
4912
gint other_page;
4913
4914
other_page = view->current_page ^ 1;
4915
4916
/* Find the largest of the two. */
4917
ev_page_cache_get_size (view->page_cache,
4918
view->current_page,
4919
view->rotation,
4920
1.0,
4921
&doc_width, &doc_height);
4922
4923
if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
4924
gint width_2, height_2;
4925
ev_page_cache_get_size (view->page_cache,
4926
other_page,
4927
view->rotation,
4928
1.0,
4929
&width_2, &height_2);
4930
if (width_2 > doc_width)
4931
doc_width = width_2;
4932
if (height_2 > doc_height)
4933
doc_height = height_2;
4934
}
4935
compute_border (view, doc_width, doc_height, &border);
4936
4937
doc_width = doc_width * 2;
4938
width -= ((border.left + border.right)* 2 + 3 * view->spacing);
4939
height -= (border.top + border.bottom + 2 * view->spacing);
4940
4941
if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4942
scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
4943
else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4944
scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
4945
else
4946
g_assert_not_reached ();
4947
4948
ev_view_set_zoom (view, scale, FALSE);
4949
}
4950
4951
static void
4952
ev_view_zoom_for_size_single_page (EvView *view,
4953
int width,
4954
int height,
4955
int vsb_width,
4956
int hsb_height)
4957
{
4958
int doc_width, doc_height;
4959
GtkBorder border;
4960
gdouble scale;
4961
4962
ev_page_cache_get_size (view->page_cache,
4963
view->current_page,
4964
view->rotation,
4965
1.0,
4966
&doc_width,
4967
&doc_height);
4968
/* Get an approximate border */
4969
compute_border (view, width, height, &border);
4970
4971
width -= (border.left + border.right + 2 * view->spacing);
4972
height -= (border.top + border.bottom + 2 * view->spacing);
4973
4974
if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4975
scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
4976
else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4977
scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
4978
else
4979
g_assert_not_reached ();
4980
4981
ev_view_set_zoom (view, scale, FALSE);
4982
}
4983
4984
void
4985
ev_view_set_zoom_for_size (EvView *view,
4986
int width,
4987
int height,
4988
int vsb_width,
4989
int hsb_height)
4990
{
4991
g_return_if_fail (EV_IS_VIEW (view));
4992
g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
4993
view->sizing_mode == EV_SIZING_BEST_FIT);
4994
g_return_if_fail (width >= 0);
4995
g_return_if_fail (height >= 0);
4996
4997
if (view->document == NULL)
4998
return;
4999
5000
if (view->presentation)
5001
ev_view_zoom_for_size_presentation (view, width, height);
5002
else if (view->continuous && view->dual_page)
5003
ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
5004
else if (view->continuous)
5005
ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
5006
else if (view->dual_page)
5007
ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
5008
else
5009
ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
5010
}
5011
5012
/*** Find ***/
5013
static gint
5014
ev_view_find_get_n_results (EvView *view, gint page)
5015
{
5016
return view->find_pages ? g_list_length (view->find_pages[page]) : 0;
5017
}
5018
5019
static EvRectangle *
5020
ev_view_find_get_result (EvView *view, gint page, gint result)
5021
{
5022
return view->find_pages ? (EvRectangle *) g_list_nth_data (view->find_pages[page], result) : NULL;
5023
}
5024
5025
static void
5026
jump_to_find_result (EvView *view)
5027
{
5028
gint n_results;
5029
gint page = view->current_page;
5030
5031
n_results = ev_view_find_get_n_results (view, page);
5032
5033
if (n_results > 0 && view->find_result < n_results) {
5034
EvRectangle *rect;
5035
GdkRectangle view_rect;
5036
5037
rect = ev_view_find_get_result (view, page, view->find_result);
5038
doc_rect_to_view_rect (view, page, rect, &view_rect);
5039
ensure_rectangle_is_visible (view, &view_rect);
5040
view->jump_to_find_result = FALSE;
5041
}
5042
}
5043
5044
/**
5045
* jump_to_find_page
5046
* @view: #EvView instance
5047
* @direction: Direction to look
5048
* @shift: Shift from current page
5049
*
5050
* Jumps to the first page that has occurences of searched word.
5051
* Uses a direction where to look and a shift from current page.
5052
*
5053
*/
5054
static void
5055
jump_to_find_page (EvView *view, EvViewFindDirection direction, gint shift)
5056
{
5057
int n_pages, i;
5058
5059
n_pages = ev_page_cache_get_n_pages (view->page_cache);
5060
5061
for (i = 0; i < n_pages; i++) {
5062
int page;
5063
5064
if (direction == EV_VIEW_FIND_NEXT)
5065
page = view->current_page + i;
5066
else
5067
page = view->current_page - i;
5068
page += shift;
5069
5070
if (page >= n_pages) {
5071
page = page - n_pages;
5072
} else if (page < 0)
5073
page = page + n_pages;
5074
5075
if (ev_view_find_get_n_results (view, page) > 0) {
5076
ev_page_cache_set_current_page (view->page_cache, page);
5077
break;
5078
}
5079
}
5080
}
5081
5082
void
5083
ev_view_find_changed (EvView *view, GList **results, gint page)
5084
{
5085
view->find_pages = results;
5086
5087
if (view->jump_to_find_result == TRUE) {
5088
jump_to_find_page (view, EV_VIEW_FIND_NEXT, 0);
5089
jump_to_find_result (view);
5090
}
5091
5092
if (view->current_page == page)
5093
gtk_widget_queue_draw (GTK_WIDGET (view));
5094
}
5095
5096
void
5097
ev_view_find_next (EvView *view)
5098
{
5099
gint n_results;
5100
5101
n_results = ev_view_find_get_n_results (view, view->current_page);
5102
view->find_result++;
5103
5104
if (view->find_result >= n_results) {
5105
view->find_result = 0;
5106
jump_to_find_page (view, EV_VIEW_FIND_NEXT, 1);
5107
jump_to_find_result (view);
5108
} else {
5109
jump_to_find_result (view);
5110
gtk_widget_queue_draw (GTK_WIDGET (view));
5111
}
5112
}
5113
5114
void
5115
ev_view_find_previous (EvView *view)
5116
{
5117
view->find_result--;
5118
5119
if (view->find_result < 0) {
5120
jump_to_find_page (view, EV_VIEW_FIND_PREV, -1);
5121
view->find_result = MAX (0, ev_view_find_get_n_results (view, view->current_page) - 1);
5122
jump_to_find_result (view);
5123
} else {
5124
jump_to_find_result (view);
5125
gtk_widget_queue_draw (GTK_WIDGET (view));
5126
}
5127
}
5128
5129
void
5130
ev_view_find_search_changed (EvView *view)
5131
{
5132
/* search string has changed, focus on new search result */
5133
view->jump_to_find_result = TRUE;
5134
view->find_pages = NULL;
5135
}
5136
5137
void
5138
ev_view_find_set_highlight_search (EvView *view, gboolean value)
5139
{
5140
view->highlight_find_results = value;
5141
gtk_widget_queue_draw (GTK_WIDGET (view));
5142
}
5143
5144
void
5145
ev_view_find_cancel (EvView *view)
5146
{
5147
view->find_pages = NULL;
5148
}
5149
5150
/*** Selections ***/
5151
5152
/* compute_new_selection_rect/text calculates the area currently selected by
5153
* view_rect. each handles a different mode;
5154
*/
5155
static GList *
5156
compute_new_selection_rect (EvView *view,
5157
GdkPoint *start,
5158
GdkPoint *stop)
5159
{
5160
GdkRectangle view_rect;
5161
int n_pages, i;
5162
GList *list = NULL;
5163
5164
g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
5165
5166
view_rect.x = MIN (start->x, stop->x);
5167
view_rect.y = MIN (start->y, stop->y);
5168
view_rect.width = MAX (start->x, stop->x) - view_rect.x;
5169
view_rect.width = MAX (start->y, stop->y) - view_rect.y;
5170
5171
n_pages = ev_page_cache_get_n_pages (view->page_cache);
5172
5173
for (i = 0; i < n_pages; i++) {
5174
GdkRectangle page_area;
5175
GtkBorder border;
5176
5177
if (get_page_extents (view, i, &page_area, &border)) {
5178
GdkRectangle overlap;
5179
5180
if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
5181
EvViewSelection *selection;
5182
5183
selection = g_new0 (EvViewSelection, 1);
5184
selection->page = i;
5185
view_rect_to_doc_rect (view, &overlap, &page_area,
5186
&(selection->rect));
5187
5188
list = g_list_append (list, selection);
5189
}
5190
}
5191
}
5192
5193
return list;
5194
}
5195
5196
static gboolean
5197
gdk_rectangle_point_in (GdkRectangle *rectangle,
5198
GdkPoint *point)
5199
{
5200
return rectangle->x <= point->x &&
5201
rectangle->y <= point->y &&
5202
point->x < rectangle->x + rectangle->width &&
5203
point->y < rectangle->y + rectangle->height;
5204
}
5205
5206
static GList *
5207
compute_new_selection_text (EvView *view,
5208
EvSelectionStyle style,
5209
GdkPoint *start,
5210
GdkPoint *stop)
5211
{
5212
int n_pages, i, first, last;
5213
GList *list = NULL;
5214
EvViewSelection *selection;
5215
gint width, height;
5216
int start_page, end_page;
5217
5218
g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
5219
5220
n_pages = ev_page_cache_get_n_pages (view->page_cache);
5221
5222
/* First figure out the range of pages the selection
5223
* affects. */
5224
first = n_pages;
5225
last = 0;
5226
if (view->continuous) {
5227
start_page = 0;
5228
end_page = n_pages;
5229
} else if (view->dual_page) {
5230
start_page = view->start_page;
5231
end_page = view->end_page + 1;
5232
} else {
5233
start_page = view->current_page;
5234
end_page = view->current_page + 1;
5235
}
5236
5237
for (i = start_page; i < end_page; i++) {
5238
GdkRectangle page_area;
5239
GtkBorder border;
5240
5241
get_page_extents (view, i, &page_area, &border);
5242
if (gdk_rectangle_point_in (&page_area, start) ||
5243
gdk_rectangle_point_in (&page_area, stop)) {
5244
if (first == n_pages)
5245
first = i;
5246
last = i;
5247
}
5248
5249
}
5250
5251
/* Now create a list of EvViewSelection's for the affected
5252
* pages. This could be an empty list, a list of just one
5253
* page or a number of pages.*/
5254
for (i = first; i < last + 1; i++) {
5255
GdkRectangle page_area;
5256
GtkBorder border;
5257
GdkPoint *point;
5258
5259
ev_page_cache_get_size (view->page_cache, i,
5260
view->rotation,
5261
1.0, &width, &height);
5262
5263
selection = g_new0 (EvViewSelection, 1);
5264
selection->page = i;
5265
selection->style = style;
5266
selection->rect.x1 = selection->rect.y1 = 0;
5267
selection->rect.x2 = width;
5268
selection->rect.y2 = height;
5269
5270
get_page_extents (view, i, &page_area, &border);
5271
5272
if (gdk_rectangle_point_in (&page_area, start))
5273
point = start;
5274
else
5275
point = stop;
5276
5277
if (i == first)
5278
view_point_to_doc_point (view, point, &page_area,
5279
&selection->rect.x1,
5280
&selection->rect.y1);
5281
5282
/* If the selection is contained within just one page,
5283
* make sure we don't write 'start' into both points
5284
* in selection->rect. */
5285
if (first == last)
5286
point = stop;
5287
5288
if (i == last)
5289
view_point_to_doc_point (view, point, &page_area,
5290
&selection->rect.x2,
5291
&selection->rect.y2);
5292
5293
list = g_list_append (list, selection);
5294
}
5295
5296
return list;
5297
}
5298
5299
/* This function takes the newly calculated list, and figures out which regions
5300
* have changed. It then queues a redraw approporiately.
5301
*/
5302
static void
5303
merge_selection_region (EvView *view,
5304
GList *new_list)
5305
{
5306
GList *old_list;
5307
GList *new_list_ptr, *old_list_ptr;
5308
5309
/* Update the selection */
5310
old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
5311
g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
5312
g_list_free (view->selection_info.selections);
5313
view->selection_info.selections = new_list;
5314
ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
5315
g_object_notify (G_OBJECT (view), "has-selection");
5316
5317
new_list_ptr = new_list;
5318
old_list_ptr = old_list;
5319
5320
while (new_list_ptr || old_list_ptr) {
5321
EvViewSelection *old_sel, *new_sel;
5322
int cur_page;
5323
GdkRegion *region = NULL;
5324
5325
new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
5326
old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
5327
5328
/* Assume that the lists are in order, and we run through them
5329
* comparing them, one page at a time. We come out with the
5330
* first page we see. */
5331
if (new_sel && old_sel) {
5332
if (new_sel->page < old_sel->page) {
5333
new_list_ptr = new_list_ptr->next;
5334
old_sel = NULL;
5335
} else if (new_sel->page > old_sel->page) {
5336
old_list_ptr = old_list_ptr->next;
5337
new_sel = NULL;
5338
} else {
5339
new_list_ptr = new_list_ptr->next;
5340
old_list_ptr = old_list_ptr->next;
5341
}
5342
} else if (new_sel) {
5343
new_list_ptr = new_list_ptr->next;
5344
} else if (old_sel) {
5345
old_list_ptr = old_list_ptr->next;
5346
}
5347
5348
g_assert (new_sel || old_sel);
5349
5350
/* is the page we're looking at on the screen?*/
5351
cur_page = new_sel ? new_sel->page : old_sel->page;
5352
if (cur_page < view->start_page || cur_page > view->end_page)
5353
continue;
5354
5355
/* seed the cache with a new page. We are going to need the new
5356
* region too. */
5357
if (new_sel) {
5358
GdkRegion *tmp_region = NULL;
5359
5360
ev_pixbuf_cache_get_selection_surface (view->pixbuf_cache,
5361
cur_page,
5362
view->scale,
5363
&tmp_region);
5364
5365
if (tmp_region) {
5366
new_sel->covered_region = gdk_region_copy (tmp_region);
5367
}
5368
}
5369
5370
/* Now we figure out what needs redrawing */
5371
if (old_sel && new_sel) {
5372
if (old_sel->covered_region && new_sel->covered_region) {
5373
/* We only want to redraw the areas that have
5374
* changed, so we xor the old and new regions
5375
* and redraw if it's different */
5376
region = gdk_region_copy (old_sel->covered_region);
5377
gdk_region_xor (region, new_sel->covered_region);
5378
if (gdk_region_empty (region)) {
5379
gdk_region_destroy (region);
5380
region = NULL;
5381
}
5382
} else if (old_sel->covered_region) {
5383
region = gdk_region_copy (old_sel->covered_region);
5384
} else if (new_sel->covered_region) {
5385
region = gdk_region_copy (new_sel->covered_region);
5386
}
5387
} else if (old_sel && !new_sel) {
5388
if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
5389
region = gdk_region_copy (old_sel->covered_region);
5390
}
5391
} else if (!old_sel && new_sel) {
5392
if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
5393
region = gdk_region_copy (new_sel->covered_region);
5394
}
5395
} else {
5396
g_assert_not_reached ();
5397
}
5398
5399
/* Redraw the damaged region! */
5400
if (region) {
5401
GdkRectangle page_area;
5402
GtkBorder border;
5403
5404
/* I don't know why but the region is smaller
5405
* than expected. This hack fixes it, I guess
5406
* 10 pixels more won't hurt
5407
*/
5408
gdk_region_shrink (region, -5, -5);
5409
5410
get_page_extents (view, cur_page, &page_area, &border);
5411
gdk_region_offset (region,
5412
page_area.x + border.left - view->scroll_x,
5413
page_area.y + border.top - view->scroll_y);
5414
gdk_window_invalidate_region (view->layout.bin_window, region, TRUE);
5415
gdk_region_destroy (region);
5416
}
5417
}
5418
5419
/* Free the old list, now that we're done with it. */
5420
g_list_foreach (old_list, (GFunc) selection_free, NULL);
5421
g_list_free (old_list);
5422
}
5423
5424
static void
5425
compute_selections (EvView *view,
5426
EvSelectionStyle style,
5427
GdkPoint *start,
5428
GdkPoint *stop)
5429
{
5430
GList *list;
5431
5432
if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
5433
list = compute_new_selection_rect (view, start, stop);
5434
else
5435
list = compute_new_selection_text (view, style, start, stop);
5436
merge_selection_region (view, list);
5437
}
5438
5439
/* Free's the selection. It's up to the caller to queue redraws if needed.
5440
*/
5441
static void
5442
selection_free (EvViewSelection *selection)
5443
{
5444
if (selection->covered_region)
5445
gdk_region_destroy (selection->covered_region);
5446
g_free (selection);
5447
}
5448
5449
static void
5450
clear_selection (EvView *view)
5451
{
5452
g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
5453
g_list_free (view->selection_info.selections);
5454
view->selection_info.selections = NULL;
5455
view->selection_info.in_selection = FALSE;
5456
if (view->pixbuf_cache)
5457
ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, NULL);
5458
g_object_notify (G_OBJECT (view), "has-selection");
5459
}
5460
5461
void
5462
ev_view_select_all (EvView *view)
5463
{
5464
GList *selections = NULL;
5465
int n_pages, i;
5466
5467
/* Disable selection on rotated pages for the 0.4.0 series */
5468
if (view->rotation != 0)
5469
return;
5470
5471
clear_selection (view);
5472
5473
n_pages = ev_page_cache_get_n_pages (view->page_cache);
5474
for (i = 0; i < n_pages; i++) {
5475
int width, height;
5476
EvViewSelection *selection;
5477
5478
ev_page_cache_get_size (view->page_cache,
5479
i,
5480
view->rotation,
5481
1.0, &width, &height);
5482
5483
selection = g_new0 (EvViewSelection, 1);
5484
selection->page = i;
5485
selection->style = EV_SELECTION_STYLE_GLYPH;
5486
selection->rect.x1 = selection->rect.y1 = 0;
5487
selection->rect.x2 = width;
5488
selection->rect.y2 = height;
5489
5490
selections = g_list_append (selections, selection);
5491
}
5492
5493
merge_selection_region (view, selections);
5494
gtk_widget_queue_draw (GTK_WIDGET (view));
5495
}
5496
5497
gboolean
5498
ev_view_get_has_selection (EvView *view)
5499
{
5500
return view->selection_info.selections != NULL;
5501
}
5502
5503
static char *
5504
get_selected_text (EvView *view)
5505
{
5506
GString *text;
5507
GList *l;
5508
gchar *normalized_text;
5509
EvRenderContext *rc;
5510
5511
text = g_string_new (NULL);
5512
rc = ev_render_context_new (NULL, view->rotation, view->scale);
5513
5514
ev_document_doc_mutex_lock ();
5515
5516
for (l = view->selection_info.selections; l != NULL; l = l->next) {
5517
EvViewSelection *selection = (EvViewSelection *)l->data;
5518
EvPage *page;
5519
gchar *tmp;
5520
5521
page = ev_document_get_page (view->document, selection->page);
5522
ev_render_context_set_page (rc, page);
5523
g_object_unref (page);
5524
5525
tmp = ev_selection_get_selected_text (EV_SELECTION (view->document),
5526
rc, selection->style,
5527
&(selection->rect));
5528
5529
g_string_append (text, tmp);
5530
g_free (tmp);
5531
}
5532
5533
g_object_unref (rc);
5534
5535
ev_document_doc_mutex_unlock ();
5536
5537
normalized_text = g_utf8_normalize (text->str, text->len, G_NORMALIZE_NFKC);
5538
g_string_free (text, TRUE);
5539
return normalized_text;
5540
}
5541
5542
static void
5543
ev_view_clipboard_copy (EvView *view,
5544
const gchar *text)
5545
{
5546
GtkClipboard *clipboard;
5547
5548
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (view),
5549
GDK_SELECTION_CLIPBOARD);
5550
gtk_clipboard_set_text (clipboard, text, -1);
5551
}
5552
5553
void
5554
ev_view_copy (EvView *ev_view)
5555
{
5556
char *text;
5557
5558
if (!EV_IS_SELECTION (ev_view->document))
5559
return;
5560
5561
text = get_selected_text (ev_view);
5562
ev_view_clipboard_copy (ev_view, text);
5563
g_free (text);
5564
}
5565
5566
static void
5567
ev_view_primary_get_cb (GtkClipboard *clipboard,
5568
GtkSelectionData *selection_data,
5569
guint info,
5570
gpointer data)
5571
{
5572
EvView *ev_view = EV_VIEW (data);
5573
5574
if (ev_view->link_selected) {
5575
gtk_selection_data_set_text (selection_data,
5576
ev_link_action_get_uri (ev_view->link_selected),
5577
-1);
5578
} else if (EV_IS_SELECTION (ev_view->document) &&
5579
ev_view->selection_info.selections) {
5580
gchar *text;
5581
5582
text = get_selected_text (ev_view);
5583
if (text) {
5584
gtk_selection_data_set_text (selection_data, text, -1);
5585
g_free (text);
5586
}
5587
}
5588
}
5589
5590
static void
5591
ev_view_primary_clear_cb (GtkClipboard *clipboard,
5592
gpointer data)
5593
{
5594
EvView *view = EV_VIEW (data);
5595
5596
clear_selection (view);
5597
clear_link_selected (view);
5598
}
5599
5600
static void
5601
ev_view_update_primary_selection (EvView *ev_view)
5602
{
5603
GtkClipboard *clipboard;
5604
5605
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
5606
GDK_SELECTION_PRIMARY);
5607
5608
if (ev_view->selection_info.selections || ev_view->link_selected) {
5609
GtkTargetList *target_list;
5610
GtkTargetEntry *targets;
5611
int n_targets;
5612
5613
target_list = gtk_target_list_new (NULL, 0);
5614
gtk_target_list_add_text_targets (target_list, 0);
5615
targets = gtk_target_table_new_from_list (target_list, &n_targets);
5616
gtk_target_list_unref (target_list);
5617
5618
if (!gtk_clipboard_set_with_owner (clipboard,
5619
targets, n_targets,
5620
ev_view_primary_get_cb,
5621
ev_view_primary_clear_cb,
5622
G_OBJECT (ev_view)))
5623
ev_view_primary_clear_cb (clipboard, ev_view);
5624
5625
gtk_target_table_free (targets, n_targets);
5626
} else {
5627
if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
5628
gtk_clipboard_clear (clipboard);
5629
}
5630
}
5631
5632
static void
5633
clear_link_selected (EvView *view)
5634
{
5635
if (view->link_selected) {
5636
g_object_unref (view->link_selected);
5637
view->link_selected = NULL;
5638
}
5639
}
5640
5641
void
5642
ev_view_copy_link_address (EvView *view,
5643
EvLinkAction *action)
5644
{
5645
clear_link_selected (view);
5646
5647
ev_view_clipboard_copy (view, ev_link_action_get_uri (action));
5648
5649
view->link_selected = g_object_ref (action);
5650
ev_view_update_primary_selection (view);
5651
}
5652
5653
/*** Cursor operations ***/
5654
5655
static GdkCursor *
5656
ev_view_create_invisible_cursor(void)
5657
{
5658
GdkBitmap *empty;
5659
GdkColor black = { 0, 0, 0, 0 };
5660
static char bits[] = { 0x00 };
5661
5662
empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
5663
5664
return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
5665
}
5666
5667
static void
5668
ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
5669
{
5670
GdkCursor *cursor = NULL;
5671
GdkDisplay *display;
5672
GtkWidget *widget;
5673
5674
if (view->cursor == new_cursor) {
5675
return;
5676
}
5677
5678
widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
5679
display = gtk_widget_get_display (widget);
5680
view->cursor = new_cursor;
5681
5682
switch (new_cursor) {
5683
case EV_VIEW_CURSOR_NORMAL:
5684
gdk_window_set_cursor (view->layout.bin_window, NULL);
5685
break;
5686
case EV_VIEW_CURSOR_IBEAM:
5687
cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
5688
break;
5689
case EV_VIEW_CURSOR_LINK:
5690
cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
5691
break;
5692
case EV_VIEW_CURSOR_WAIT:
5693
cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
5694
break;
5695
case EV_VIEW_CURSOR_HIDDEN:
5696
cursor = ev_view_create_invisible_cursor ();
5697
break;
5698
case EV_VIEW_CURSOR_DRAG:
5699
cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
5700
break;
5701
case EV_VIEW_CURSOR_AUTOSCROLL:
5702
cursor = gdk_cursor_new_for_display (display, GDK_DOUBLE_ARROW);
5703
break;
5704
}
5705
5706
if (cursor) {
5707
gdk_window_set_cursor (view->layout.bin_window, cursor);
5708
gdk_cursor_unref (cursor);
5709
gdk_flush();
5710
}
5711
}
5712
5713
void
5714
ev_view_hide_cursor (EvView *view)
5715
{
5716
ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
5717
}
5718
5719
void
5720
ev_view_show_cursor (EvView *view)
5721
{
5722
ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
5723
}
5724
5725
static void
5726
ev_view_reset_presentation_state (EvView *view)
5727
{
5728
if (!view->presentation ||
5729
view->presentation_state == EV_PRESENTATION_NORMAL)
5730
return;
5731
5732
view->presentation_state = EV_PRESENTATION_NORMAL;
5733
gdk_window_set_background (view->layout.bin_window,
5734
>K_WIDGET (view)->style->black);
5735
gtk_widget_queue_draw (GTK_WIDGET (view));
5736
}
5737
5738
gboolean
5739
ev_view_next_page (EvView *view)
5740
{
5741
int page, n_pages;
5742
5743
g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
5744
5745
if (!view->page_cache)
5746
return FALSE;
5747
5748
if (view->presentation &&
5749
(view->presentation_state == EV_PRESENTATION_BLACK ||
5750
view->presentation_state == EV_PRESENTATION_WHITE)) {
5751
ev_view_reset_presentation_state (view);
5752
return FALSE;
5753
}
5754
5755
if (view->animation) {
5756
ev_view_transition_animation_cancel (view->animation, view);
5757
}
5758
5759
ev_view_presentation_transition_stop (view);
5760
ev_view_reset_presentation_state (view);
5761
5762
page = ev_page_cache_get_current_page (view->page_cache);
5763
n_pages = ev_page_cache_get_n_pages (view->page_cache);
5764
5765
if (view->dual_page && !view->presentation)
5766
page = page + 2;
5767
else
5768
page = page + 1;
5769
5770
if (page < n_pages) {
5771
ev_page_cache_set_current_page (view->page_cache, page);
5772
return TRUE;
5773
} else if (view->presentation && page == n_pages) {
5774
view->presentation_state = EV_PRESENTATION_END;
5775
gtk_widget_queue_draw (GTK_WIDGET (view));
5776
return TRUE;
5777
} else if (view->dual_page && page == n_pages) {
5778
ev_page_cache_set_current_page (view->page_cache, page - 1);
5779
return TRUE;
5780
} else {
5781
return FALSE;
5782
}
5783
}
5784
5785
gboolean
5786
ev_view_previous_page (EvView *view)
5787
{
5788
int page;
5789
5790
g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
5791
5792
if (!view->page_cache)
5793
return FALSE;
5794
5795
if (view->presentation &&
5796
view->presentation_state == EV_PRESENTATION_END) {
5797
ev_view_reset_presentation_state (view);
5798
return TRUE;
5799
}
5800
5801
if (view->presentation &&
5802
(view->presentation_state == EV_PRESENTATION_BLACK ||
5803
view->presentation_state == EV_PRESENTATION_WHITE)) {
5804
ev_view_reset_presentation_state (view);
5805
return FALSE;
5806
}
5807
5808
if (view->animation) {
5809
ev_view_transition_animation_cancel (view->animation, view);
5810
}
5811
5812
ev_view_reset_presentation_state (view);
5813
5814
page = ev_page_cache_get_current_page (view->page_cache);
5815
5816
if (view->dual_page && !view->presentation)
5817
page = page - 2;
5818
else
5819
page = page - 1;
5820
5821
if (page >= 0) {
5822
ev_page_cache_set_current_page (view->page_cache, page);
5823
return TRUE;
5824
} else if (ev_view_get_dual_page (view) && page == -1) {
5825
ev_page_cache_set_current_page (view->page_cache, 0);
5826
return TRUE;
5827
} else {
5828
return FALSE;
5829
}
5830
}
5831
5832
/*** Enum description for usage in signal ***/
5833
5834
GType
5835
ev_sizing_mode_get_type (void)
5836
{
5837
static GType etype = 0;
5838
if (etype == 0) {
5839
static const GEnumValue values[] = {
5840
{ EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
5841
{ EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
5842
{ EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
5843
{ 0, NULL, NULL }
5844
};
5845
etype = g_enum_register_static ("EvSizingMode", values);
5846
}
5847
return etype;
5848
}
5849
5850
void
5851
ev_view_update_view_size (EvView *view, GtkScrolledWindow * scrolled_window)
5852
{
5853
int width, height;
5854
GtkRequisition vsb_requisition;
5855
GtkRequisition hsb_requisition;
5856
int scrollbar_spacing;
5857
5858
/* Calculate the width available for the content */
5859
width = GTK_WIDGET (scrolled_window)->allocation.width;
5860
height = GTK_WIDGET (scrolled_window)->allocation.height;
5861
5862
if (gtk_scrolled_window_get_shadow_type (scrolled_window) == GTK_SHADOW_IN
5863
&& view) {
5864
width -= 2 * GTK_WIDGET(view)->style->xthickness;
5865
height -= 2 * GTK_WIDGET(view)->style->ythickness;
5866
}
5867
5868
gtk_widget_size_request (scrolled_window->vscrollbar, &vsb_requisition);
5869
gtk_widget_size_request (scrolled_window->hscrollbar, &hsb_requisition);
5870
gtk_widget_style_get (GTK_WIDGET (scrolled_window),
5871
"scrollbar_spacing",
5872
&scrollbar_spacing,
5873
NULL);
5874
5875
if (EV_IS_VIEW(view)) {
5876
ev_view_set_zoom_for_size (EV_VIEW (view),
5877
MAX (1, width),
5878
MAX (1, height),
5879
vsb_requisition.width + scrollbar_spacing,
5880
hsb_requisition.height + scrollbar_spacing);
5881
}
5882
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.1