1 #include "ev-pixbuf-cache.h"
2 #include "ev-job-queue.h"
3 #include "ev-page-cache.h"
4 #include "ev-selection.h"
5 #include "ev-document-images.h"
8 typedef struct _CacheJobInfo
13 /* Data we get from rendering */
14 cairo_surface_t *surface;
17 GdkRegion *text_mapping;
20 * Selection_points are the coordinates encapsulated in selection.
21 * target_points is the target selection size. */
22 EvRectangle selection_points;
23 EvRectangle target_points;
26 cairo_surface_t *selection;
27 GdkRegion *selection_region;
34 /* We keep a link to our containing view just for style information. */
40 /* preload_cache_size is the number of pages prior to the current
41 * visible area that we cache. It's normally 1, but could be 2 in the
44 int preload_cache_size;
45 CacheJobInfo *prev_job;
46 CacheJobInfo *job_list;
47 CacheJobInfo *next_job;
50 struct _EvPixbufCacheClass
52 GObjectClass parent_class;
54 void (* job_finished) (EvPixbufCache *pixbuf_cache);
64 static guint signals[N_SIGNALS] = {0, };
66 static void ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache);
67 static void ev_pixbuf_cache_class_init (EvPixbufCacheClass *pixbuf_cache);
68 static void ev_pixbuf_cache_finalize (GObject *object);
69 static void ev_pixbuf_cache_dispose (GObject *object);
70 static void job_finished_cb (EvJob *job,
71 EvPixbufCache *pixbuf_cache);
72 static CacheJobInfo *find_job_cache (EvPixbufCache *pixbuf_cache,
74 static void copy_job_to_job_info (EvJobRender *job_render,
75 CacheJobInfo *job_info,
76 EvPixbufCache *pixbuf_cache);
77 static gboolean new_selection_surface_needed(EvPixbufCache *pixbuf_cache,
78 CacheJobInfo *job_info,
83 /* These are used for iterating through the prev and next arrays */
84 #define FIRST_VISABLE_PREV(pixbuf_cache) \
85 (MAX (0, pixbuf_cache->preload_cache_size + 1 - pixbuf_cache->start_page))
86 #define VISIBLE_NEXT_LEN(pixbuf_cache, page_cache) \
87 (MIN(pixbuf_cache->preload_cache_size, ev_page_cache_get_n_pages (page_cache) - (1 + pixbuf_cache->end_page)))
88 #define PAGE_CACHE_LEN(pixbuf_cache) \
89 ((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1)
91 G_DEFINE_TYPE (EvPixbufCache, ev_pixbuf_cache, G_TYPE_OBJECT)
94 ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache)
96 pixbuf_cache->start_page = 0;
97 pixbuf_cache->end_page = 0;
98 pixbuf_cache->job_list = g_new0 (CacheJobInfo, PAGE_CACHE_LEN (pixbuf_cache));
100 pixbuf_cache->preload_cache_size = 2;
101 pixbuf_cache->prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
102 pixbuf_cache->next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
106 ev_pixbuf_cache_class_init (EvPixbufCacheClass *class)
108 GObjectClass *object_class;
110 object_class = G_OBJECT_CLASS (class);
112 object_class->finalize = ev_pixbuf_cache_finalize;
113 object_class->dispose = ev_pixbuf_cache_dispose;
115 signals[JOB_FINISHED] = g_signal_new ("job-finished",
116 G_OBJECT_CLASS_TYPE (object_class),
117 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
118 G_STRUCT_OFFSET (EvPixbufCacheClass, job_finished),
120 g_cclosure_marshal_VOID__VOID,
125 ev_pixbuf_cache_finalize (GObject *object)
127 EvPixbufCache *pixbuf_cache;
129 pixbuf_cache = EV_PIXBUF_CACHE (object);
131 g_free (pixbuf_cache->prev_job);
132 g_free (pixbuf_cache->job_list);
133 g_free (pixbuf_cache->next_job);
135 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->finalize (object);
139 dispose_cache_job_info (CacheJobInfo *job_info,
142 if (job_info == NULL)
145 g_signal_handlers_disconnect_by_func (job_info->job,
146 G_CALLBACK (job_finished_cb),
148 ev_job_queue_remove_job (job_info->job);
149 g_object_unref (G_OBJECT (job_info->job));
150 job_info->job = NULL;
152 if (job_info->surface) {
153 cairo_surface_destroy (job_info->surface);
154 job_info->surface = NULL;
156 if (job_info->link_mapping) {
157 ev_link_mapping_free (job_info->link_mapping);
158 job_info->link_mapping = NULL;
160 if (job_info->image_mapping) {
161 ev_image_mapping_free (job_info->image_mapping);
162 job_info->image_mapping = NULL;
164 if (job_info->text_mapping) {
165 gdk_region_destroy (job_info->text_mapping);
166 job_info->text_mapping = NULL;
168 if (job_info->selection) {
169 cairo_surface_destroy (job_info->selection);
170 job_info->selection = NULL;
172 if (job_info->selection_region) {
173 gdk_region_destroy (job_info->selection_region);
174 job_info->selection_region = NULL;
177 g_object_unref (G_OBJECT (job_info->rc));
181 job_info->points_set = FALSE;
185 ev_pixbuf_cache_dispose (GObject *object)
187 EvPixbufCache *pixbuf_cache;
190 pixbuf_cache = EV_PIXBUF_CACHE (object);
192 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
193 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
194 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
197 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
198 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
201 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->dispose (object);
206 ev_pixbuf_cache_new (GtkWidget *view,
207 EvDocument *document)
209 EvPixbufCache *pixbuf_cache;
211 pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL);
212 /* This is a backlink, so we don't ref this */
213 pixbuf_cache->view = view;
214 pixbuf_cache->document = document;
220 job_finished_cb (EvJob *job,
221 EvPixbufCache *pixbuf_cache)
223 CacheJobInfo *job_info;
224 EvJobRender *job_render = EV_JOB_RENDER (job);
226 /* If the job is outside of our interest, we silently discard it */
227 if ((job_render->rc->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
228 (job_render->rc->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
229 g_object_unref (job);
233 job_info = find_job_cache (pixbuf_cache, job_render->rc->page);
235 copy_job_to_job_info (job_render, job_info, pixbuf_cache);
236 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
239 /* This checks a job to see if the job would generate the right sized pixbuf
240 * given a scale. If it won't, it removes the job and clears it to NULL.
243 check_job_size_and_unref (EvPixbufCache *pixbuf_cache,
244 CacheJobInfo *job_info,
245 EvPageCache *page_cache,
253 if (job_info->job == NULL)
256 ev_page_cache_get_size (page_cache,
257 EV_JOB_RENDER (job_info->job)->rc->page,
258 EV_JOB_RENDER (job_info->job)->rc->rotation,
262 if (width == EV_JOB_RENDER (job_info->job)->target_width &&
263 height == EV_JOB_RENDER (job_info->job)->target_height)
266 g_signal_handlers_disconnect_by_func (job_info->job,
267 G_CALLBACK (job_finished_cb),
269 ev_job_queue_remove_job (job_info->job);
270 g_object_unref (job_info->job);
271 job_info->job = NULL;
274 /* Do all function that copies a job from an older cache to it's position in the
275 * new cache. It clears the old job if it doesn't have a place.
278 move_one_job (CacheJobInfo *job_info,
279 EvPixbufCache *pixbuf_cache,
281 CacheJobInfo *new_job_list,
282 CacheJobInfo *new_prev_job,
283 CacheJobInfo *new_next_job,
286 EvJobPriority priority)
288 CacheJobInfo *target_page = NULL;
290 EvJobPriority new_priority;
292 if (page < (start_page - pixbuf_cache->preload_cache_size) ||
293 page > (end_page + pixbuf_cache->preload_cache_size)) {
294 dispose_cache_job_info (job_info, pixbuf_cache);
298 /* find the target page to copy it over to. */
299 if (page < start_page) {
300 page_offset = (page - (start_page - pixbuf_cache->preload_cache_size));
302 g_assert (page_offset >= 0 &&
303 page_offset < pixbuf_cache->preload_cache_size);
304 target_page = new_prev_job + page_offset;
305 new_priority = EV_JOB_PRIORITY_LOW;
306 } else if (page > end_page) {
307 page_offset = (page - (end_page + 1));
309 g_assert (page_offset >= 0 &&
310 page_offset < pixbuf_cache->preload_cache_size);
311 target_page = new_next_job + page_offset;
312 new_priority = EV_JOB_PRIORITY_LOW;
314 page_offset = page - start_page;
315 g_assert (page_offset >= 0 &&
316 page_offset <= ((end_page - start_page) + 1));
317 new_priority = EV_JOB_PRIORITY_HIGH;
318 target_page = new_job_list + page_offset;
321 *target_page = *job_info;
322 job_info->job = NULL;
323 job_info->surface = NULL;
324 job_info->link_mapping = NULL;
325 job_info->image_mapping = NULL;
327 if (new_priority != priority && target_page->job) {
328 ev_job_queue_update_job (target_page->job, new_priority);
335 ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache,
339 CacheJobInfo *new_job_list;
340 CacheJobInfo *new_prev_job;
341 CacheJobInfo *new_next_job;
342 EvPageCache *page_cache;
345 if (pixbuf_cache->start_page == start_page &&
346 pixbuf_cache->end_page == end_page)
349 page_cache = ev_page_cache_get (pixbuf_cache->document);
351 new_job_list = g_new0 (CacheJobInfo, (end_page - start_page) + 1);
352 new_prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
353 new_next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
355 /* We go through each job in the old cache and either clear it or move
356 * it to a new location. */
358 /* Start with the prev cache. */
359 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
360 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
362 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
364 move_one_job (pixbuf_cache->prev_job + i,
366 new_job_list, new_prev_job, new_next_job,
367 start_page, end_page, EV_JOB_PRIORITY_LOW);
372 page = pixbuf_cache->start_page;
373 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
374 move_one_job (pixbuf_cache->job_list + i,
376 new_job_list, new_prev_job, new_next_job,
377 start_page, end_page, EV_JOB_PRIORITY_HIGH);
381 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
382 if (page >= ev_page_cache_get_n_pages (page_cache)) {
383 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
385 move_one_job (pixbuf_cache->next_job + i,
387 new_job_list, new_prev_job, new_next_job,
388 start_page, end_page, EV_JOB_PRIORITY_LOW);
393 g_free (pixbuf_cache->job_list);
394 g_free (pixbuf_cache->prev_job);
395 g_free (pixbuf_cache->next_job);
397 pixbuf_cache->job_list = new_job_list;
398 pixbuf_cache->prev_job = new_prev_job;
399 pixbuf_cache->next_job = new_next_job;
401 pixbuf_cache->start_page = start_page;
402 pixbuf_cache->end_page = end_page;
406 copy_job_to_job_info (EvJobRender *job_render,
407 CacheJobInfo *job_info,
408 EvPixbufCache *pixbuf_cache)
411 job_info->points_set = FALSE;
413 if (job_info->surface) {
414 cairo_surface_destroy (job_info->surface);
416 job_info->surface = cairo_surface_reference (job_render->surface);
419 g_object_unref (G_OBJECT (job_info->rc));
421 job_info->rc = g_object_ref (job_render->rc);
423 if (job_render->include_links) {
424 if (job_info->link_mapping)
425 ev_link_mapping_free (job_info->link_mapping);
426 job_info->link_mapping = job_render->link_mapping;
429 if (job_render->include_images) {
430 if (job_info->image_mapping)
431 ev_image_mapping_free (job_info->image_mapping);
432 job_info->image_mapping = job_render->image_mapping;
435 if (job_render->include_text) {
436 if (job_info->text_mapping)
437 gdk_region_destroy (job_info->text_mapping);
438 job_info->text_mapping = job_render->text_mapping;
441 if (job_render->include_selection) {
442 if (job_info->selection) {
443 cairo_surface_destroy (job_info->selection);
444 job_info->selection = NULL;
446 if (job_info->selection_region) {
447 gdk_region_destroy (job_info->selection_region);
448 job_info->selection_region = NULL;
451 job_info->selection_points = job_render->selection_points;
452 job_info->selection_region = gdk_region_copy (job_render->selection_region);
453 job_info->selection = cairo_surface_reference (job_render->selection);
454 g_assert (job_info->selection_points.x1 >= 0);
455 job_info->points_set = TRUE;
459 g_signal_handlers_disconnect_by_func (job_info->job,
460 G_CALLBACK (job_finished_cb),
462 ev_job_queue_remove_job (job_info->job);
463 g_object_unref (G_OBJECT (job_info->job));
464 job_info->job = NULL;
468 static CacheJobInfo *
469 find_job_cache (EvPixbufCache *pixbuf_cache,
474 if (page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size) ||
475 page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))
478 if (page < pixbuf_cache->start_page) {
479 page_offset = (page - (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size));
481 g_assert (page_offset >= 0 &&
482 page_offset < pixbuf_cache->preload_cache_size);
483 return pixbuf_cache->prev_job + page_offset;
486 if (page > pixbuf_cache->end_page) {
487 page_offset = (page - (pixbuf_cache->end_page + 1));
489 g_assert (page_offset >= 0 &&
490 page_offset < pixbuf_cache->preload_cache_size);
491 return pixbuf_cache->next_job + page_offset;
494 page_offset = page - pixbuf_cache->start_page;
495 g_assert (page_offset >= 0 &&
496 page_offset <= PAGE_CACHE_LEN(pixbuf_cache));
497 return pixbuf_cache->job_list + page_offset;
501 ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache,
504 EvPageCache *page_cache;
507 page_cache = ev_page_cache_get (pixbuf_cache->document);
509 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
510 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->job_list + i, page_cache, scale);
513 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
514 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->prev_job + i, page_cache, scale);
515 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->next_job + i, page_cache, scale);
519 #define FIRST_VISABLE_PREV(pixbuf_cache) \
520 (MAX (0, pixbuf_cache->preload_cache_size + 1 - pixbuf_cache->start_page))
523 get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base)
525 if (GTK_WIDGET_HAS_FOCUS (widget)) {
526 *text = &widget->style->text [GTK_STATE_SELECTED];
527 *base = &widget->style->base [GTK_STATE_SELECTED];
529 *text = &widget->style->text [GTK_STATE_ACTIVE];
530 *base = &widget->style->base [GTK_STATE_ACTIVE];
535 add_job_if_needed (EvPixbufCache *pixbuf_cache,
536 CacheJobInfo *job_info,
537 EvPageCache *page_cache,
541 EvJobPriority priority)
543 gboolean include_links = FALSE;
544 gboolean include_text = FALSE;
545 gboolean include_selection = FALSE;
546 gboolean include_images = FALSE;
548 GdkColor *text, *base;
553 ev_page_cache_get_size (page_cache, page, rotation,
554 scale, &width, &height);
556 if (job_info->surface &&
557 cairo_image_surface_get_width (job_info->surface) == width &&
558 cairo_image_surface_get_height (job_info->surface) == height)
561 /* make a new job now */
562 if (job_info->rc == NULL) {
563 job_info->rc = ev_render_context_new (rotation, page, scale);
565 ev_render_context_set_rotation (job_info->rc, rotation);
566 ev_render_context_set_page (job_info->rc, page);
567 ev_render_context_set_scale (job_info->rc, scale);
570 /* Figure out what else we need for this job */
571 if (job_info->link_mapping == NULL)
572 include_links = TRUE;
573 if (job_info->image_mapping == NULL)
574 include_images = TRUE;
575 if (job_info->text_mapping == NULL)
577 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
578 include_selection = TRUE;
581 gtk_widget_ensure_style (pixbuf_cache->view);
583 get_selection_colors (pixbuf_cache->view, &text, &base);
585 job_info->job = ev_job_render_new (pixbuf_cache->document,
588 &(job_info->target_points),
594 ev_job_queue_add_job (job_info->job, priority);
595 g_signal_connect (job_info->job, "finished", G_CALLBACK (job_finished_cb), pixbuf_cache);
600 ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache,
604 EvPageCache *page_cache;
605 CacheJobInfo *job_info;
609 page_cache = ev_page_cache_get (pixbuf_cache->document);
611 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
612 job_info = (pixbuf_cache->job_list + i);
613 page = pixbuf_cache->start_page + i;
615 add_job_if_needed (pixbuf_cache, job_info,
616 page_cache, page, rotation, scale,
617 EV_JOB_PRIORITY_HIGH);
620 for (i = FIRST_VISABLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) {
621 job_info = (pixbuf_cache->prev_job + i);
622 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i;
624 add_job_if_needed (pixbuf_cache, job_info,
625 page_cache, page, rotation, scale,
626 EV_JOB_PRIORITY_LOW);
629 for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache, page_cache); i++) {
630 job_info = (pixbuf_cache->next_job + i);
631 page = pixbuf_cache->end_page + 1 + i;
633 add_job_if_needed (pixbuf_cache, job_info,
634 page_cache, page, rotation, scale,
635 EV_JOB_PRIORITY_LOW);
641 ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
646 GList *selection_list)
648 EvPageCache *page_cache;
650 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
652 page_cache = ev_page_cache_get (pixbuf_cache->document);
654 g_return_if_fail (start_page >= 0 && start_page < ev_page_cache_get_n_pages (page_cache));
655 g_return_if_fail (end_page >= 0 && end_page < ev_page_cache_get_n_pages (page_cache));
656 g_return_if_fail (end_page >= start_page);
658 /* First, resize the page_range as needed. We cull old pages
660 ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page);
662 /* Then, we update the current jobs to see if any of them are the wrong
663 * size, we remove them if we need to. */
664 ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale);
666 /* Next, we update the target selection for our pages */
667 ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list);
669 /* Finally, we add the new jobs for all the sizes that don't have a
671 ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale);
675 ev_pixbuf_cache_get_surface (EvPixbufCache *pixbuf_cache,
678 CacheJobInfo *job_info;
680 job_info = find_job_cache (pixbuf_cache, page);
681 if (job_info == NULL)
684 /* We don't need to wait for the idle to handle the callback */
686 EV_JOB (job_info->job)->finished) {
687 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
688 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
691 return job_info->surface;
695 ev_pixbuf_cache_get_link_mapping (EvPixbufCache *pixbuf_cache,
698 CacheJobInfo *job_info;
700 job_info = find_job_cache (pixbuf_cache, page);
701 if (job_info == NULL)
704 /* We don't need to wait for the idle to handle the callback */
706 EV_JOB (job_info->job)->finished) {
707 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
708 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
711 return job_info->link_mapping;
715 ev_pixbuf_cache_get_image_mapping (EvPixbufCache *pixbuf_cache,
718 CacheJobInfo *job_info;
720 if (!EV_IS_DOCUMENT_IMAGES (pixbuf_cache->document))
723 job_info = find_job_cache (pixbuf_cache, page);
724 if (job_info == NULL)
727 /* We don't need to wait for the idle to handle the callback */
729 EV_JOB (job_info->job)->finished) {
730 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
731 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
734 return job_info->image_mapping;
738 new_selection_surface_needed (EvPixbufCache *pixbuf_cache,
739 CacheJobInfo *job_info,
743 EvPageCache *page_cache;
745 if (job_info->selection) {
747 gint selection_width, selection_height;
749 page_cache = ev_page_cache_get (pixbuf_cache->document);
750 ev_page_cache_get_size (page_cache, page,
751 job_info->rc->rotation,
752 scale, &width, &height);
754 selection_width = cairo_image_surface_get_width (job_info->selection);
755 selection_height = cairo_image_surface_get_height (job_info->selection);
757 if (width != selection_width || height != selection_height)
760 if (job_info->points_set)
768 clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
769 CacheJobInfo *job_info,
773 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
774 if (job_info->selection)
775 cairo_surface_destroy (job_info->selection);
776 job_info->selection = NULL;
777 job_info->selection_points.x1 = -1;
782 ev_pixbuf_cache_get_text_mapping (EvPixbufCache *pixbuf_cache,
785 CacheJobInfo *job_info;
787 job_info = find_job_cache (pixbuf_cache, page);
788 if (job_info == NULL)
791 /* We don't need to wait for the idle to handle the callback */
793 EV_JOB (job_info->job)->finished) {
794 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
795 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
798 return job_info->text_mapping;
801 /* Clears the cache of jobs and pixbufs.
804 ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache)
808 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
809 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
810 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
813 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
814 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
820 ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache)
824 /* FIXME: doesn't update running jobs. */
825 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
826 CacheJobInfo *job_info;
828 job_info = pixbuf_cache->prev_job + i;
829 if (job_info->selection) {
830 cairo_surface_destroy (job_info->selection);
831 job_info->selection = NULL;
834 job_info = pixbuf_cache->next_job + i;
835 if (job_info->selection) {
836 cairo_surface_destroy (job_info->selection);
837 job_info->selection = NULL;
841 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
842 CacheJobInfo *job_info;
844 job_info = pixbuf_cache->job_list + i;
845 if (job_info->selection) {
846 cairo_surface_destroy (job_info->selection);
847 job_info->selection = NULL;
853 ev_pixbuf_cache_get_selection_surface (EvPixbufCache *pixbuf_cache,
858 CacheJobInfo *job_info;
860 /* the document does not implement the selection interface */
861 if (!EV_IS_SELECTION (pixbuf_cache->document))
864 job_info = find_job_cache (pixbuf_cache, page);
865 if (job_info == NULL)
868 /* No selection on this page */
869 if (!job_info->points_set)
873 g_assert (job_info->rc);
874 ev_render_context_set_scale (job_info->rc, scale);
876 /* If we have a running job, we just return what we have under the
877 * assumption that it'll be updated later and we can scale it as need
879 if (job_info->job && EV_JOB_RENDER (job_info->job)->include_selection)
880 return job_info->selection;
882 /* Now, lets see if we need to resize the image. If we do, we clear the
884 clear_selection_if_needed (pixbuf_cache, job_info, page, scale);
886 /* Finally, we see if the two scales are the same, and get a new pixbuf
887 * if needed. We do this synchronously for now. At some point, we
888 * _should_ be able to get rid of the doc_mutex, so the synchronicity
889 * doesn't kill us. Rendering a few glyphs should really be fast.
891 if (ev_rect_cmp (&(job_info->target_points), &(job_info->selection_points))) {
892 EvRectangle *old_points;
893 GdkColor *text, *base;
895 /* we need to get a new selection pixbuf */
896 ev_document_doc_mutex_lock ();
897 if (job_info->selection_points.x1 < 0) {
898 g_assert (job_info->selection == NULL);
901 g_assert (job_info->selection != NULL);
902 old_points = &(job_info->selection_points);
905 if (job_info->selection_region)
906 gdk_region_destroy (job_info->selection_region);
907 job_info->selection_region =
908 ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document),
910 &(job_info->target_points));
912 gtk_widget_ensure_style (pixbuf_cache->view);
914 get_selection_colors (pixbuf_cache->view, &text, &base);
916 ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
917 job_info->rc, &(job_info->selection),
918 &(job_info->target_points),
921 job_info->selection_points = job_info->target_points;
922 ev_document_doc_mutex_unlock ();
925 *region = job_info->selection_region;
926 return job_info->selection;
930 update_job_selection (CacheJobInfo *job_info,
931 EvViewSelection *selection)
933 job_info->points_set = TRUE;
934 job_info->target_points = selection->rect;
938 clear_job_selection (CacheJobInfo *job_info)
940 job_info->points_set = FALSE;
941 job_info->selection_points.x1 = -1;
943 if (job_info->selection) {
944 cairo_surface_destroy (job_info->selection);
945 job_info->selection = NULL;
949 /* This function will reset the selection on pages that no longer have them, and
950 * will update the target_selection on those that need it. It will _not_ free
951 * the previous selection_list -- that's up to caller to do.
954 ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
955 GList *selection_list)
957 EvPageCache *page_cache;
958 EvViewSelection *selection;
959 GList *list = selection_list;
963 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
965 if (!EV_IS_SELECTION (pixbuf_cache->document))
968 page_cache = ev_page_cache_get (pixbuf_cache->document);
970 /* We check each area to see what needs updating, and what needs freeing; */
971 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
972 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
980 if (((EvViewSelection *)list->data)->page == page) {
981 selection = list->data;
983 } else if (((EvViewSelection *)list->data)->page > page)
989 update_job_selection (pixbuf_cache->prev_job + i, selection);
991 clear_job_selection (pixbuf_cache->prev_job + i);
995 page = pixbuf_cache->start_page;
996 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
999 if (((EvViewSelection *)list->data)->page == page) {
1000 selection = list->data;
1002 } else if (((EvViewSelection *)list->data)->page > page)
1008 update_job_selection (pixbuf_cache->job_list + i, selection);
1010 clear_job_selection (pixbuf_cache->job_list + i);
1014 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1015 if (page >= ev_page_cache_get_n_pages (page_cache))
1020 if (((EvViewSelection *)list->data)->page == page) {
1021 selection = list->data;
1023 } else if (((EvViewSelection *)list->data)->page > page)
1029 update_job_selection (pixbuf_cache->next_job + i, selection);
1031 clear_job_selection (pixbuf_cache->next_job + i);
1037 /* Returns what the pixbuf cache thinks is */
1040 ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
1042 EvPageCache *page_cache;
1043 EvViewSelection *selection;
1044 GList *retval = NULL;
1048 g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
1050 page_cache = ev_page_cache_get (pixbuf_cache->document);
1052 /* We check each area to see what needs updating, and what needs freeing; */
1053 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1054 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1060 if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) {
1061 selection = g_new0 (EvViewSelection, 1);
1062 selection->page = page;
1063 selection->rect = pixbuf_cache->prev_job[i].selection_points;
1064 if (pixbuf_cache->prev_job[i].selection_region)
1065 selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region);
1066 retval = g_list_append (retval, selection);
1072 page = pixbuf_cache->start_page;
1073 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1074 if (pixbuf_cache->job_list[i].selection_points.x1 != -1) {
1075 selection = g_new0 (EvViewSelection, 1);
1076 selection->page = page;
1077 selection->rect = pixbuf_cache->job_list[i].selection_points;
1078 if (pixbuf_cache->job_list[i].selection_region)
1079 selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region);
1080 retval = g_list_append (retval, selection);
1086 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1087 if (page >= ev_page_cache_get_n_pages (page_cache))
1090 if (pixbuf_cache->next_job[i].selection_points.x1 != -1) {
1091 selection = g_new0 (EvViewSelection, 1);
1092 selection->page = page;
1093 selection->rect = pixbuf_cache->next_job[i].selection_points;
1094 if (pixbuf_cache->next_job[i].selection_region)
1095 selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region);
1096 retval = g_list_append (retval, selection);