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"
7 #include "ev-form-field.h"
9 typedef struct _CacheJobInfo
14 /* Data we get from rendering */
15 cairo_surface_t *surface;
18 GList *form_field_mapping;
19 GdkRegion *text_mapping;
22 * Selection_points are the coordinates encapsulated in selection.
23 * target_points is the target selection size. */
24 EvRectangle selection_points;
25 EvRectangle target_points;
28 cairo_surface_t *selection;
29 GdkRegion *selection_region;
36 /* We keep a link to our containing view just for style information. */
42 /* preload_cache_size is the number of pages prior to the current
43 * visible area that we cache. It's normally 1, but could be 2 in the
46 int preload_cache_size;
47 CacheJobInfo *prev_job;
48 CacheJobInfo *job_list;
49 CacheJobInfo *next_job;
52 struct _EvPixbufCacheClass
54 GObjectClass parent_class;
56 void (* job_finished) (EvPixbufCache *pixbuf_cache);
66 static guint signals[N_SIGNALS] = {0, };
68 static void ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache);
69 static void ev_pixbuf_cache_class_init (EvPixbufCacheClass *pixbuf_cache);
70 static void ev_pixbuf_cache_finalize (GObject *object);
71 static void ev_pixbuf_cache_dispose (GObject *object);
72 static void job_finished_cb (EvJob *job,
73 EvPixbufCache *pixbuf_cache);
74 static CacheJobInfo *find_job_cache (EvPixbufCache *pixbuf_cache,
76 static void copy_job_to_job_info (EvJobRender *job_render,
77 CacheJobInfo *job_info,
78 EvPixbufCache *pixbuf_cache);
79 static gboolean new_selection_surface_needed(EvPixbufCache *pixbuf_cache,
80 CacheJobInfo *job_info,
85 /* These are used for iterating through the prev and next arrays */
86 #define FIRST_VISABLE_PREV(pixbuf_cache) \
87 (MAX (0, pixbuf_cache->preload_cache_size + 1 - pixbuf_cache->start_page))
88 #define VISIBLE_NEXT_LEN(pixbuf_cache, page_cache) \
89 (MIN(pixbuf_cache->preload_cache_size, ev_page_cache_get_n_pages (page_cache) - (1 + pixbuf_cache->end_page)))
90 #define PAGE_CACHE_LEN(pixbuf_cache) \
91 ((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1)
93 G_DEFINE_TYPE (EvPixbufCache, ev_pixbuf_cache, G_TYPE_OBJECT)
96 ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache)
98 pixbuf_cache->start_page = 0;
99 pixbuf_cache->end_page = 0;
100 pixbuf_cache->job_list = g_new0 (CacheJobInfo, PAGE_CACHE_LEN (pixbuf_cache));
102 pixbuf_cache->preload_cache_size = 2;
103 pixbuf_cache->prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
104 pixbuf_cache->next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
108 ev_pixbuf_cache_class_init (EvPixbufCacheClass *class)
110 GObjectClass *object_class;
112 object_class = G_OBJECT_CLASS (class);
114 object_class->finalize = ev_pixbuf_cache_finalize;
115 object_class->dispose = ev_pixbuf_cache_dispose;
117 signals[JOB_FINISHED] = g_signal_new ("job-finished",
118 G_OBJECT_CLASS_TYPE (object_class),
119 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
120 G_STRUCT_OFFSET (EvPixbufCacheClass, job_finished),
122 g_cclosure_marshal_VOID__VOID,
127 ev_pixbuf_cache_finalize (GObject *object)
129 EvPixbufCache *pixbuf_cache;
131 pixbuf_cache = EV_PIXBUF_CACHE (object);
133 g_free (pixbuf_cache->prev_job);
134 g_free (pixbuf_cache->job_list);
135 g_free (pixbuf_cache->next_job);
137 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->finalize (object);
141 dispose_cache_job_info (CacheJobInfo *job_info,
144 if (job_info == NULL)
147 g_signal_handlers_disconnect_by_func (job_info->job,
148 G_CALLBACK (job_finished_cb),
150 ev_job_queue_remove_job (job_info->job);
151 g_object_unref (G_OBJECT (job_info->job));
152 job_info->job = NULL;
154 if (job_info->surface) {
155 cairo_surface_destroy (job_info->surface);
156 job_info->surface = NULL;
158 if (job_info->link_mapping) {
159 ev_link_mapping_free (job_info->link_mapping);
160 job_info->link_mapping = NULL;
162 if (job_info->image_mapping) {
163 ev_image_mapping_free (job_info->image_mapping);
164 job_info->image_mapping = NULL;
166 if (job_info->form_field_mapping) {
167 ev_form_field_mapping_free (job_info->form_field_mapping);
168 job_info->form_field_mapping = NULL;
170 if (job_info->text_mapping) {
171 gdk_region_destroy (job_info->text_mapping);
172 job_info->text_mapping = NULL;
174 if (job_info->selection) {
175 cairo_surface_destroy (job_info->selection);
176 job_info->selection = NULL;
178 if (job_info->selection_region) {
179 gdk_region_destroy (job_info->selection_region);
180 job_info->selection_region = NULL;
183 g_object_unref (G_OBJECT (job_info->rc));
187 job_info->points_set = FALSE;
191 ev_pixbuf_cache_dispose (GObject *object)
193 EvPixbufCache *pixbuf_cache;
196 pixbuf_cache = EV_PIXBUF_CACHE (object);
198 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
199 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
200 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
203 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
204 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
207 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->dispose (object);
212 ev_pixbuf_cache_new (GtkWidget *view,
213 EvDocument *document)
215 EvPixbufCache *pixbuf_cache;
217 pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL);
218 /* This is a backlink, so we don't ref this */
219 pixbuf_cache->view = view;
220 pixbuf_cache->document = document;
226 job_finished_cb (EvJob *job,
227 EvPixbufCache *pixbuf_cache)
229 CacheJobInfo *job_info;
230 EvJobRender *job_render = EV_JOB_RENDER (job);
232 /* If the job is outside of our interest, we silently discard it */
233 if ((job_render->rc->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
234 (job_render->rc->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
235 g_object_unref (job);
239 job_info = find_job_cache (pixbuf_cache, job_render->rc->page);
241 copy_job_to_job_info (job_render, job_info, pixbuf_cache);
242 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
245 /* This checks a job to see if the job would generate the right sized pixbuf
246 * given a scale. If it won't, it removes the job and clears it to NULL.
249 check_job_size_and_unref (EvPixbufCache *pixbuf_cache,
250 CacheJobInfo *job_info,
251 EvPageCache *page_cache,
259 if (job_info->job == NULL)
262 ev_page_cache_get_size (page_cache,
263 EV_JOB_RENDER (job_info->job)->rc->page,
264 EV_JOB_RENDER (job_info->job)->rc->rotation,
268 if (width == EV_JOB_RENDER (job_info->job)->target_width &&
269 height == EV_JOB_RENDER (job_info->job)->target_height)
272 g_signal_handlers_disconnect_by_func (job_info->job,
273 G_CALLBACK (job_finished_cb),
275 ev_job_queue_remove_job (job_info->job);
276 g_object_unref (job_info->job);
277 job_info->job = NULL;
280 /* Do all function that copies a job from an older cache to it's position in the
281 * new cache. It clears the old job if it doesn't have a place.
284 move_one_job (CacheJobInfo *job_info,
285 EvPixbufCache *pixbuf_cache,
287 CacheJobInfo *new_job_list,
288 CacheJobInfo *new_prev_job,
289 CacheJobInfo *new_next_job,
292 EvJobPriority priority)
294 CacheJobInfo *target_page = NULL;
296 EvJobPriority new_priority;
298 if (page < (start_page - pixbuf_cache->preload_cache_size) ||
299 page > (end_page + pixbuf_cache->preload_cache_size)) {
300 dispose_cache_job_info (job_info, pixbuf_cache);
304 /* find the target page to copy it over to. */
305 if (page < start_page) {
306 page_offset = (page - (start_page - pixbuf_cache->preload_cache_size));
308 g_assert (page_offset >= 0 &&
309 page_offset < pixbuf_cache->preload_cache_size);
310 target_page = new_prev_job + page_offset;
311 new_priority = EV_JOB_PRIORITY_LOW;
312 } else if (page > end_page) {
313 page_offset = (page - (end_page + 1));
315 g_assert (page_offset >= 0 &&
316 page_offset < pixbuf_cache->preload_cache_size);
317 target_page = new_next_job + page_offset;
318 new_priority = EV_JOB_PRIORITY_LOW;
320 page_offset = page - start_page;
321 g_assert (page_offset >= 0 &&
322 page_offset <= ((end_page - start_page) + 1));
323 new_priority = EV_JOB_PRIORITY_HIGH;
324 target_page = new_job_list + page_offset;
327 *target_page = *job_info;
328 job_info->job = NULL;
329 job_info->surface = NULL;
330 job_info->link_mapping = NULL;
331 job_info->image_mapping = NULL;
332 job_info->form_field_mapping = NULL;
334 if (new_priority != priority && target_page->job) {
335 ev_job_queue_update_job (target_page->job, new_priority);
342 ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache,
346 CacheJobInfo *new_job_list;
347 CacheJobInfo *new_prev_job;
348 CacheJobInfo *new_next_job;
349 EvPageCache *page_cache;
352 if (pixbuf_cache->start_page == start_page &&
353 pixbuf_cache->end_page == end_page)
356 page_cache = ev_page_cache_get (pixbuf_cache->document);
358 new_job_list = g_new0 (CacheJobInfo, (end_page - start_page) + 1);
359 new_prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
360 new_next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
362 /* We go through each job in the old cache and either clear it or move
363 * it to a new location. */
365 /* Start with the prev cache. */
366 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
367 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
369 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
371 move_one_job (pixbuf_cache->prev_job + i,
373 new_job_list, new_prev_job, new_next_job,
374 start_page, end_page, EV_JOB_PRIORITY_LOW);
379 page = pixbuf_cache->start_page;
380 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
381 move_one_job (pixbuf_cache->job_list + i,
383 new_job_list, new_prev_job, new_next_job,
384 start_page, end_page, EV_JOB_PRIORITY_HIGH);
388 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
389 if (page >= ev_page_cache_get_n_pages (page_cache)) {
390 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
392 move_one_job (pixbuf_cache->next_job + i,
394 new_job_list, new_prev_job, new_next_job,
395 start_page, end_page, EV_JOB_PRIORITY_LOW);
400 g_free (pixbuf_cache->job_list);
401 g_free (pixbuf_cache->prev_job);
402 g_free (pixbuf_cache->next_job);
404 pixbuf_cache->job_list = new_job_list;
405 pixbuf_cache->prev_job = new_prev_job;
406 pixbuf_cache->next_job = new_next_job;
408 pixbuf_cache->start_page = start_page;
409 pixbuf_cache->end_page = end_page;
413 copy_job_to_job_info (EvJobRender *job_render,
414 CacheJobInfo *job_info,
415 EvPixbufCache *pixbuf_cache)
418 job_info->points_set = FALSE;
420 if (job_info->surface) {
421 cairo_surface_destroy (job_info->surface);
423 job_info->surface = cairo_surface_reference (job_render->surface);
426 g_object_unref (G_OBJECT (job_info->rc));
428 job_info->rc = g_object_ref (job_render->rc);
430 if (job_render->include_links) {
431 if (job_info->link_mapping)
432 ev_link_mapping_free (job_info->link_mapping);
433 job_info->link_mapping = job_render->link_mapping;
436 if (job_render->include_images) {
437 if (job_info->image_mapping)
438 ev_image_mapping_free (job_info->image_mapping);
439 job_info->image_mapping = job_render->image_mapping;
442 if (job_render->include_forms) {
443 if (job_info->form_field_mapping)
444 ev_form_field_mapping_free (job_info->form_field_mapping);
445 job_info->form_field_mapping = job_render->form_field_mapping;
448 if (job_render->include_text) {
449 if (job_info->text_mapping)
450 gdk_region_destroy (job_info->text_mapping);
451 job_info->text_mapping = job_render->text_mapping;
454 if (job_render->include_selection) {
455 if (job_info->selection) {
456 cairo_surface_destroy (job_info->selection);
457 job_info->selection = NULL;
459 if (job_info->selection_region) {
460 gdk_region_destroy (job_info->selection_region);
461 job_info->selection_region = NULL;
464 job_info->selection_points = job_render->selection_points;
465 job_info->selection_region = gdk_region_copy (job_render->selection_region);
466 job_info->selection = cairo_surface_reference (job_render->selection);
467 g_assert (job_info->selection_points.x1 >= 0);
468 job_info->points_set = TRUE;
472 g_signal_handlers_disconnect_by_func (job_info->job,
473 G_CALLBACK (job_finished_cb),
475 ev_job_queue_remove_job (job_info->job);
476 g_object_unref (G_OBJECT (job_info->job));
477 job_info->job = NULL;
481 static CacheJobInfo *
482 find_job_cache (EvPixbufCache *pixbuf_cache,
487 if (page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size) ||
488 page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))
491 if (page < pixbuf_cache->start_page) {
492 page_offset = (page - (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size));
494 g_assert (page_offset >= 0 &&
495 page_offset < pixbuf_cache->preload_cache_size);
496 return pixbuf_cache->prev_job + page_offset;
499 if (page > pixbuf_cache->end_page) {
500 page_offset = (page - (pixbuf_cache->end_page + 1));
502 g_assert (page_offset >= 0 &&
503 page_offset < pixbuf_cache->preload_cache_size);
504 return pixbuf_cache->next_job + page_offset;
507 page_offset = page - pixbuf_cache->start_page;
508 g_assert (page_offset >= 0 &&
509 page_offset <= PAGE_CACHE_LEN(pixbuf_cache));
510 return pixbuf_cache->job_list + page_offset;
514 ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache,
517 EvPageCache *page_cache;
520 page_cache = ev_page_cache_get (pixbuf_cache->document);
522 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
523 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->job_list + i, page_cache, scale);
526 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
527 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->prev_job + i, page_cache, scale);
528 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->next_job + i, page_cache, scale);
532 #define FIRST_VISABLE_PREV(pixbuf_cache) \
533 (MAX (0, pixbuf_cache->preload_cache_size + 1 - pixbuf_cache->start_page))
536 get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base)
538 if (GTK_WIDGET_HAS_FOCUS (widget)) {
539 *text = &widget->style->text [GTK_STATE_SELECTED];
540 *base = &widget->style->base [GTK_STATE_SELECTED];
542 *text = &widget->style->text [GTK_STATE_ACTIVE];
543 *base = &widget->style->base [GTK_STATE_ACTIVE];
548 add_job (EvPixbufCache *pixbuf_cache,
549 CacheJobInfo *job_info,
550 EvPageCache *page_cache,
556 EvJobPriority priority)
558 gboolean include_links = FALSE;
559 gboolean include_text = FALSE;
560 gboolean include_selection = FALSE;
561 gboolean include_images = TRUE;
562 gboolean include_forms = FALSE;
563 GdkColor *text, *base;
565 if (job_info->rc == NULL) {
566 job_info->rc = ev_render_context_new (rotation, page, scale);
568 ev_render_context_set_rotation (job_info->rc, rotation);
569 ev_render_context_set_page (job_info->rc, page);
570 ev_render_context_set_scale (job_info->rc, scale);
573 /* Figure out what else we need for this job */
574 if (job_info->link_mapping == NULL)
575 include_links = TRUE;
576 if (job_info->image_mapping == NULL)
577 include_images = TRUE;
578 if (job_info->form_field_mapping == NULL)
579 include_forms = TRUE;
580 if (job_info->text_mapping == NULL)
582 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
583 include_selection = TRUE;
586 gtk_widget_ensure_style (pixbuf_cache->view);
588 get_selection_colors (pixbuf_cache->view, &text, &base);
590 job_info->job = ev_job_render_new (pixbuf_cache->document,
593 &(job_info->target_points),
600 ev_job_queue_add_job (job_info->job, priority);
601 g_signal_connect (job_info->job, "finished", G_CALLBACK (job_finished_cb), pixbuf_cache);
605 add_job_if_needed (EvPixbufCache *pixbuf_cache,
606 CacheJobInfo *job_info,
607 EvPageCache *page_cache,
611 EvJobPriority priority)
618 ev_page_cache_get_size (page_cache, page, rotation,
619 scale, &width, &height);
621 if (job_info->surface &&
622 cairo_image_surface_get_width (job_info->surface) == width &&
623 cairo_image_surface_get_height (job_info->surface) == height)
626 add_job (pixbuf_cache, job_info, page_cache,
627 width, height, page, rotation, scale,
632 ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache,
636 EvPageCache *page_cache;
637 CacheJobInfo *job_info;
641 page_cache = ev_page_cache_get (pixbuf_cache->document);
643 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
644 job_info = (pixbuf_cache->job_list + i);
645 page = pixbuf_cache->start_page + i;
647 add_job_if_needed (pixbuf_cache, job_info,
648 page_cache, page, rotation, scale,
649 EV_JOB_PRIORITY_HIGH);
652 for (i = FIRST_VISABLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) {
653 job_info = (pixbuf_cache->prev_job + i);
654 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i;
656 add_job_if_needed (pixbuf_cache, job_info,
657 page_cache, page, rotation, scale,
658 EV_JOB_PRIORITY_LOW);
661 for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache, page_cache); i++) {
662 job_info = (pixbuf_cache->next_job + i);
663 page = pixbuf_cache->end_page + 1 + i;
665 add_job_if_needed (pixbuf_cache, job_info,
666 page_cache, page, rotation, scale,
667 EV_JOB_PRIORITY_LOW);
673 ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
678 GList *selection_list)
680 EvPageCache *page_cache;
682 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
684 page_cache = ev_page_cache_get (pixbuf_cache->document);
686 g_return_if_fail (start_page >= 0 && start_page < ev_page_cache_get_n_pages (page_cache));
687 g_return_if_fail (end_page >= 0 && end_page < ev_page_cache_get_n_pages (page_cache));
688 g_return_if_fail (end_page >= start_page);
690 /* First, resize the page_range as needed. We cull old pages
692 ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page);
694 /* Then, we update the current jobs to see if any of them are the wrong
695 * size, we remove them if we need to. */
696 ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale);
698 /* Next, we update the target selection for our pages */
699 ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list);
701 /* Finally, we add the new jobs for all the sizes that don't have a
703 ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale);
707 ev_pixbuf_cache_get_surface (EvPixbufCache *pixbuf_cache,
710 CacheJobInfo *job_info;
712 job_info = find_job_cache (pixbuf_cache, page);
713 if (job_info == NULL)
716 /* We don't need to wait for the idle to handle the callback */
718 EV_JOB (job_info->job)->finished) {
719 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
720 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
723 return job_info->surface;
727 ev_pixbuf_cache_get_link_mapping (EvPixbufCache *pixbuf_cache,
730 CacheJobInfo *job_info;
732 job_info = find_job_cache (pixbuf_cache, page);
733 if (job_info == NULL)
736 /* We don't need to wait for the idle to handle the callback */
738 EV_JOB (job_info->job)->finished) {
739 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
740 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
743 return job_info->link_mapping;
747 ev_pixbuf_cache_get_image_mapping (EvPixbufCache *pixbuf_cache,
750 CacheJobInfo *job_info;
752 if (!EV_IS_DOCUMENT_IMAGES (pixbuf_cache->document))
755 job_info = find_job_cache (pixbuf_cache, page);
756 if (job_info == NULL)
759 /* We don't need to wait for the idle to handle the callback */
761 EV_JOB (job_info->job)->finished) {
762 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
763 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
766 return job_info->image_mapping;
770 new_selection_surface_needed (EvPixbufCache *pixbuf_cache,
771 CacheJobInfo *job_info,
775 EvPageCache *page_cache;
777 if (job_info->selection) {
779 gint selection_width, selection_height;
781 page_cache = ev_page_cache_get (pixbuf_cache->document);
782 ev_page_cache_get_size (page_cache, page,
783 job_info->rc->rotation,
784 scale, &width, &height);
786 selection_width = cairo_image_surface_get_width (job_info->selection);
787 selection_height = cairo_image_surface_get_height (job_info->selection);
789 if (width != selection_width || height != selection_height)
792 if (job_info->points_set)
800 clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
801 CacheJobInfo *job_info,
805 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
806 if (job_info->selection)
807 cairo_surface_destroy (job_info->selection);
808 job_info->selection = NULL;
809 job_info->selection_points.x1 = -1;
814 ev_pixbuf_cache_get_text_mapping (EvPixbufCache *pixbuf_cache,
817 CacheJobInfo *job_info;
819 job_info = find_job_cache (pixbuf_cache, page);
820 if (job_info == NULL)
823 /* We don't need to wait for the idle to handle the callback */
825 EV_JOB (job_info->job)->finished) {
826 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
827 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
830 return job_info->text_mapping;
833 /* Clears the cache of jobs and pixbufs.
836 ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache)
840 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
841 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
842 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
845 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
846 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
852 ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache)
856 /* FIXME: doesn't update running jobs. */
857 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
858 CacheJobInfo *job_info;
860 job_info = pixbuf_cache->prev_job + i;
861 if (job_info->selection) {
862 cairo_surface_destroy (job_info->selection);
863 job_info->selection = NULL;
866 job_info = pixbuf_cache->next_job + i;
867 if (job_info->selection) {
868 cairo_surface_destroy (job_info->selection);
869 job_info->selection = NULL;
873 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
874 CacheJobInfo *job_info;
876 job_info = pixbuf_cache->job_list + i;
877 if (job_info->selection) {
878 cairo_surface_destroy (job_info->selection);
879 job_info->selection = NULL;
885 ev_pixbuf_cache_get_selection_surface (EvPixbufCache *pixbuf_cache,
890 CacheJobInfo *job_info;
892 /* the document does not implement the selection interface */
893 if (!EV_IS_SELECTION (pixbuf_cache->document))
896 job_info = find_job_cache (pixbuf_cache, page);
897 if (job_info == NULL)
900 /* No selection on this page */
901 if (!job_info->points_set)
905 g_assert (job_info->rc);
906 ev_render_context_set_scale (job_info->rc, scale);
908 /* If we have a running job, we just return what we have under the
909 * assumption that it'll be updated later and we can scale it as need
911 if (job_info->job && EV_JOB_RENDER (job_info->job)->include_selection)
912 return job_info->selection;
914 /* Now, lets see if we need to resize the image. If we do, we clear the
916 clear_selection_if_needed (pixbuf_cache, job_info, page, scale);
918 /* Finally, we see if the two scales are the same, and get a new pixbuf
919 * if needed. We do this synchronously for now. At some point, we
920 * _should_ be able to get rid of the doc_mutex, so the synchronicity
921 * doesn't kill us. Rendering a few glyphs should really be fast.
923 if (ev_rect_cmp (&(job_info->target_points), &(job_info->selection_points))) {
924 EvRectangle *old_points;
925 GdkColor *text, *base;
927 /* we need to get a new selection pixbuf */
928 ev_document_doc_mutex_lock ();
929 if (job_info->selection_points.x1 < 0) {
930 g_assert (job_info->selection == NULL);
933 g_assert (job_info->selection != NULL);
934 old_points = &(job_info->selection_points);
937 if (job_info->selection_region)
938 gdk_region_destroy (job_info->selection_region);
939 job_info->selection_region =
940 ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document),
942 &(job_info->target_points));
944 gtk_widget_ensure_style (pixbuf_cache->view);
946 get_selection_colors (pixbuf_cache->view, &text, &base);
948 ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
949 job_info->rc, &(job_info->selection),
950 &(job_info->target_points),
953 job_info->selection_points = job_info->target_points;
954 ev_document_doc_mutex_unlock ();
957 *region = job_info->selection_region;
958 return job_info->selection;
962 update_job_selection (CacheJobInfo *job_info,
963 EvViewSelection *selection)
965 job_info->points_set = TRUE;
966 job_info->target_points = selection->rect;
970 clear_job_selection (CacheJobInfo *job_info)
972 job_info->points_set = FALSE;
973 job_info->selection_points.x1 = -1;
975 if (job_info->selection) {
976 cairo_surface_destroy (job_info->selection);
977 job_info->selection = NULL;
981 /* This function will reset the selection on pages that no longer have them, and
982 * will update the target_selection on those that need it. It will _not_ free
983 * the previous selection_list -- that's up to caller to do.
986 ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
987 GList *selection_list)
989 EvPageCache *page_cache;
990 EvViewSelection *selection;
991 GList *list = selection_list;
995 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
997 if (!EV_IS_SELECTION (pixbuf_cache->document))
1000 page_cache = ev_page_cache_get (pixbuf_cache->document);
1002 /* We check each area to see what needs updating, and what needs freeing; */
1003 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1004 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1012 if (((EvViewSelection *)list->data)->page == page) {
1013 selection = list->data;
1015 } else if (((EvViewSelection *)list->data)->page > page)
1021 update_job_selection (pixbuf_cache->prev_job + i, selection);
1023 clear_job_selection (pixbuf_cache->prev_job + i);
1027 page = pixbuf_cache->start_page;
1028 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1031 if (((EvViewSelection *)list->data)->page == page) {
1032 selection = list->data;
1034 } else if (((EvViewSelection *)list->data)->page > page)
1040 update_job_selection (pixbuf_cache->job_list + i, selection);
1042 clear_job_selection (pixbuf_cache->job_list + i);
1046 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1047 if (page >= ev_page_cache_get_n_pages (page_cache))
1052 if (((EvViewSelection *)list->data)->page == page) {
1053 selection = list->data;
1055 } else if (((EvViewSelection *)list->data)->page > page)
1061 update_job_selection (pixbuf_cache->next_job + i, selection);
1063 clear_job_selection (pixbuf_cache->next_job + i);
1069 /* Returns what the pixbuf cache thinks is */
1072 ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
1074 EvPageCache *page_cache;
1075 EvViewSelection *selection;
1076 GList *retval = NULL;
1080 g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
1082 page_cache = ev_page_cache_get (pixbuf_cache->document);
1084 /* We check each area to see what needs updating, and what needs freeing; */
1085 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1086 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1092 if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) {
1093 selection = g_new0 (EvViewSelection, 1);
1094 selection->page = page;
1095 selection->rect = pixbuf_cache->prev_job[i].selection_points;
1096 if (pixbuf_cache->prev_job[i].selection_region)
1097 selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region);
1098 retval = g_list_append (retval, selection);
1104 page = pixbuf_cache->start_page;
1105 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1106 if (pixbuf_cache->job_list[i].selection_points.x1 != -1) {
1107 selection = g_new0 (EvViewSelection, 1);
1108 selection->page = page;
1109 selection->rect = pixbuf_cache->job_list[i].selection_points;
1110 if (pixbuf_cache->job_list[i].selection_region)
1111 selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region);
1112 retval = g_list_append (retval, selection);
1118 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1119 if (page >= ev_page_cache_get_n_pages (page_cache))
1122 if (pixbuf_cache->next_job[i].selection_points.x1 != -1) {
1123 selection = g_new0 (EvViewSelection, 1);
1124 selection->page = page;
1125 selection->rect = pixbuf_cache->next_job[i].selection_points;
1126 if (pixbuf_cache->next_job[i].selection_region)
1127 selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region);
1128 retval = g_list_append (retval, selection);
1138 ev_pixbuf_cache_reload_page (EvPixbufCache *pixbuf_cache,
1143 CacheJobInfo *job_info;
1144 EvPageCache *page_cache;
1147 job_info = find_job_cache (pixbuf_cache, page);
1148 if (job_info == NULL)
1151 page_cache = ev_page_cache_get (pixbuf_cache->document);
1152 ev_page_cache_get_size (page_cache, page, rotation, scale,
1155 add_job (pixbuf_cache, job_info, page_cache,
1156 width, height, page, rotation, scale,
1157 EV_JOB_PRIORITY_HIGH);
1161 ev_pixbuf_cache_get_form_field_mapping (EvPixbufCache *pixbuf_cache,
1164 CacheJobInfo *job_info;
1166 job_info = find_job_cache (pixbuf_cache, page);
1167 if (job_info == NULL)
1170 if (job_info->job &&
1171 EV_JOB (job_info->job)->finished) {
1172 copy_job_to_job_info (EV_JOB_RENDER(job_info->job), job_info, pixbuf_cache);
1174 return job_info->form_field_mapping;