2 #include "ev-pixbuf-cache.h"
3 #include "ev-job-scheduler.h"
4 #include "ev-page-cache.h"
5 #include "ev-mapping.h"
6 #include "ev-document-forms.h"
7 #include "ev-document-images.h"
8 #include "ev-document-annotations.h"
9 #include "ev-view-private.h"
11 typedef struct _CacheJobInfo
17 /* Region of the page that needs to be drawn */
20 /* Data we get from rendering */
21 cairo_surface_t *surface;
24 GList *form_field_mapping;
25 GList *annots_mapping;
26 GdkRegion *text_mapping;
29 * Selection_points are the coordinates encapsulated in selection.
30 * target_points is the target selection size. */
31 EvRectangle selection_points;
32 EvRectangle target_points;
33 EvSelectionStyle selection_style;
36 cairo_surface_t *selection;
37 GdkRegion *selection_region;
44 /* We keep a link to our containing view just for style information. */
50 /* preload_cache_size is the number of pages prior to the current
51 * visible area that we cache. It's normally 1, but could be 2 in the
54 int preload_cache_size;
55 CacheJobInfo *prev_job;
56 CacheJobInfo *job_list;
57 CacheJobInfo *next_job;
60 struct _EvPixbufCacheClass
62 GObjectClass parent_class;
64 void (* job_finished) (EvPixbufCache *pixbuf_cache);
74 static guint signals[N_SIGNALS] = {0, };
76 static void ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache);
77 static void ev_pixbuf_cache_class_init (EvPixbufCacheClass *pixbuf_cache);
78 static void ev_pixbuf_cache_finalize (GObject *object);
79 static void ev_pixbuf_cache_dispose (GObject *object);
80 static void job_page_ready_cb (EvJob *job,
81 EvPixbufCache *pixbuf_cache);
82 static void job_finished_cb (EvJob *job,
83 EvPixbufCache *pixbuf_cache);
84 static CacheJobInfo *find_job_cache (EvPixbufCache *pixbuf_cache,
86 static void copy_job_to_job_info (EvJobRender *job_render,
87 CacheJobInfo *job_info,
88 EvPixbufCache *pixbuf_cache);
89 static void copy_job_page_and_selection_to_job_info (EvJobRender *job_render,
90 CacheJobInfo *job_info,
91 EvPixbufCache *pixbuf_cache);
92 static gboolean new_selection_surface_needed(EvPixbufCache *pixbuf_cache,
93 CacheJobInfo *job_info,
98 /* These are used for iterating through the prev and next arrays */
99 #define FIRST_VISIBLE_PREV(pixbuf_cache) \
100 (MAX (0, pixbuf_cache->preload_cache_size - pixbuf_cache->start_page))
101 #define VISIBLE_NEXT_LEN(pixbuf_cache) \
102 (MIN(pixbuf_cache->preload_cache_size, ev_document_get_n_pages (pixbuf_cache->document) - (1 + pixbuf_cache->end_page)))
103 #define PAGE_CACHE_LEN(pixbuf_cache) \
104 ((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1)
106 G_DEFINE_TYPE (EvPixbufCache, ev_pixbuf_cache, G_TYPE_OBJECT)
109 ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache)
111 pixbuf_cache->start_page = 0;
112 pixbuf_cache->end_page = 0;
113 pixbuf_cache->job_list = g_new0 (CacheJobInfo, PAGE_CACHE_LEN (pixbuf_cache));
115 pixbuf_cache->preload_cache_size = 2;
116 pixbuf_cache->prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
117 pixbuf_cache->next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
121 ev_pixbuf_cache_class_init (EvPixbufCacheClass *class)
123 GObjectClass *object_class;
125 object_class = G_OBJECT_CLASS (class);
127 object_class->finalize = ev_pixbuf_cache_finalize;
128 object_class->dispose = ev_pixbuf_cache_dispose;
130 signals[JOB_FINISHED] =
131 g_signal_new ("job-finished",
132 G_OBJECT_CLASS_TYPE (object_class),
133 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
134 G_STRUCT_OFFSET (EvPixbufCacheClass, job_finished),
136 g_cclosure_marshal_VOID__POINTER,
142 ev_pixbuf_cache_finalize (GObject *object)
144 EvPixbufCache *pixbuf_cache;
146 pixbuf_cache = EV_PIXBUF_CACHE (object);
148 g_free (pixbuf_cache->prev_job);
149 g_free (pixbuf_cache->job_list);
150 g_free (pixbuf_cache->next_job);
152 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->finalize (object);
156 dispose_cache_job_info (CacheJobInfo *job_info,
159 if (job_info == NULL)
162 g_signal_handlers_disconnect_by_func (job_info->job,
163 G_CALLBACK (job_page_ready_cb),
165 g_signal_handlers_disconnect_by_func (job_info->job,
166 G_CALLBACK (job_finished_cb),
168 ev_job_cancel (job_info->job);
169 g_object_unref (job_info->job);
170 job_info->job = NULL;
172 if (job_info->surface) {
173 cairo_surface_destroy (job_info->surface);
174 job_info->surface = NULL;
176 if (job_info->region) {
177 gdk_region_destroy (job_info->region);
178 job_info->region = NULL;
180 if (job_info->link_mapping) {
181 ev_mapping_list_free (job_info->link_mapping, g_object_unref);
182 job_info->link_mapping = NULL;
184 if (job_info->image_mapping) {
185 ev_mapping_list_free (job_info->image_mapping, g_object_unref);
186 job_info->image_mapping = NULL;
188 if (job_info->form_field_mapping) {
189 ev_mapping_list_free (job_info->form_field_mapping, g_object_unref);
190 job_info->form_field_mapping = NULL;
192 if (job_info->annots_mapping) {
193 ev_mapping_list_free (job_info->annots_mapping, g_object_unref);
194 job_info->annots_mapping = NULL;
196 if (job_info->text_mapping) {
197 gdk_region_destroy (job_info->text_mapping);
198 job_info->text_mapping = NULL;
200 if (job_info->selection) {
201 cairo_surface_destroy (job_info->selection);
202 job_info->selection = NULL;
204 if (job_info->selection_region) {
205 gdk_region_destroy (job_info->selection_region);
206 job_info->selection_region = NULL;
209 g_object_unref (G_OBJECT (job_info->rc));
213 job_info->points_set = FALSE;
217 ev_pixbuf_cache_dispose (GObject *object)
219 EvPixbufCache *pixbuf_cache;
222 pixbuf_cache = EV_PIXBUF_CACHE (object);
224 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
225 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
226 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
229 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
230 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
233 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->dispose (object);
238 ev_pixbuf_cache_new (GtkWidget *view,
239 EvDocument *document)
241 EvPixbufCache *pixbuf_cache;
243 pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL);
244 /* This is a backlink, so we don't ref this */
245 pixbuf_cache->view = view;
246 pixbuf_cache->document = document;
252 job_page_ready_cb (EvJob *job,
253 EvPixbufCache *pixbuf_cache)
255 CacheJobInfo *job_info;
256 EvJobRender *job_render = EV_JOB_RENDER (job);
258 /* If the job is outside of our interest, we silently discard it */
259 if ((job_render->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
260 (job_render->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
261 g_object_unref (job);
265 job_info = find_job_cache (pixbuf_cache, job_render->page);
267 copy_job_page_and_selection_to_job_info (job_render, job_info, pixbuf_cache);
268 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
272 job_finished_cb (EvJob *job,
273 EvPixbufCache *pixbuf_cache)
275 CacheJobInfo *job_info;
276 EvJobRender *job_render = EV_JOB_RENDER (job);
278 /* If the job is outside of our interest, we silently discard it */
279 if ((job_render->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
280 (job_render->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
281 g_object_unref (job);
285 job_info = find_job_cache (pixbuf_cache, job_render->page);
286 copy_job_to_job_info (job_render, job_info, pixbuf_cache);
289 /* This checks a job to see if the job would generate the right sized pixbuf
290 * given a scale. If it won't, it removes the job and clears it to NULL.
293 check_job_size_and_unref (EvPixbufCache *pixbuf_cache,
294 CacheJobInfo *job_info,
295 EvPageCache *page_cache,
302 if (job_info->job == NULL)
305 _get_page_size_for_scale_and_rotation (job_info->job->document,
306 EV_JOB_RENDER (job_info->job)->page,
308 EV_JOB_RENDER (job_info->job)->rotation,
310 if (width == EV_JOB_RENDER (job_info->job)->target_width &&
311 height == EV_JOB_RENDER (job_info->job)->target_height)
314 g_signal_handlers_disconnect_by_func (job_info->job,
315 G_CALLBACK (job_page_ready_cb),
317 g_signal_handlers_disconnect_by_func (job_info->job,
318 G_CALLBACK (job_finished_cb),
320 ev_job_cancel (job_info->job);
321 g_object_unref (job_info->job);
322 job_info->job = NULL;
325 /* Do all function that copies a job from an older cache to it's position in the
326 * new cache. It clears the old job if it doesn't have a place.
329 move_one_job (CacheJobInfo *job_info,
330 EvPixbufCache *pixbuf_cache,
332 CacheJobInfo *new_job_list,
333 CacheJobInfo *new_prev_job,
334 CacheJobInfo *new_next_job,
339 CacheJobInfo *target_page = NULL;
343 if (page < (start_page - pixbuf_cache->preload_cache_size) ||
344 page > (end_page + pixbuf_cache->preload_cache_size)) {
345 dispose_cache_job_info (job_info, pixbuf_cache);
349 /* find the target page to copy it over to. */
350 if (page < start_page) {
351 page_offset = (page - (start_page - pixbuf_cache->preload_cache_size));
353 g_assert (page_offset >= 0 &&
354 page_offset < pixbuf_cache->preload_cache_size);
355 target_page = new_prev_job + page_offset;
356 new_priority = EV_JOB_PRIORITY_LOW;
357 } else if (page > end_page) {
358 page_offset = (page - (end_page + 1));
360 g_assert (page_offset >= 0 &&
361 page_offset < pixbuf_cache->preload_cache_size);
362 target_page = new_next_job + page_offset;
363 new_priority = EV_JOB_PRIORITY_LOW;
365 page_offset = page - start_page;
366 g_assert (page_offset >= 0 &&
367 page_offset <= ((end_page - start_page) + 1));
368 new_priority = EV_JOB_PRIORITY_URGENT;
369 target_page = new_job_list + page_offset;
372 *target_page = *job_info;
373 job_info->job = NULL;
374 job_info->region = NULL;
375 job_info->surface = NULL;
376 job_info->link_mapping = NULL;
377 job_info->image_mapping = NULL;
378 job_info->form_field_mapping = NULL;
379 job_info->annots_mapping = NULL;
381 if (new_priority != priority && target_page->job) {
382 ev_job_scheduler_update_job (target_page->job, new_priority);
387 ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache,
391 CacheJobInfo *new_job_list;
392 CacheJobInfo *new_prev_job;
393 CacheJobInfo *new_next_job;
396 if (pixbuf_cache->start_page == start_page &&
397 pixbuf_cache->end_page == end_page)
400 new_job_list = g_new0 (CacheJobInfo, (end_page - start_page) + 1);
401 new_prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
402 new_next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
404 /* We go through each job in the old cache and either clear it or move
405 * it to a new location. */
407 /* Start with the prev cache. */
408 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
409 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
411 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
413 move_one_job (pixbuf_cache->prev_job + i,
415 new_job_list, new_prev_job, new_next_job,
416 start_page, end_page, EV_JOB_PRIORITY_LOW);
421 page = pixbuf_cache->start_page;
422 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
423 move_one_job (pixbuf_cache->job_list + i,
425 new_job_list, new_prev_job, new_next_job,
426 start_page, end_page, EV_JOB_PRIORITY_URGENT);
430 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
431 if (page >= ev_document_get_n_pages (pixbuf_cache->document)) {
432 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
434 move_one_job (pixbuf_cache->next_job + i,
436 new_job_list, new_prev_job, new_next_job,
437 start_page, end_page, EV_JOB_PRIORITY_LOW);
442 g_free (pixbuf_cache->job_list);
443 g_free (pixbuf_cache->prev_job);
444 g_free (pixbuf_cache->next_job);
446 pixbuf_cache->job_list = new_job_list;
447 pixbuf_cache->prev_job = new_prev_job;
448 pixbuf_cache->next_job = new_next_job;
450 pixbuf_cache->start_page = start_page;
451 pixbuf_cache->end_page = end_page;
455 copy_job_page_and_selection_to_job_info (EvJobRender *job_render,
456 CacheJobInfo *job_info,
457 EvPixbufCache *pixbuf_cache)
459 if (job_info->rc == NULL) {
460 job_info->rc = ev_render_context_new (job_render->ev_page,
461 job_render->rotation,
464 ev_render_context_set_page (job_info->rc, job_render->ev_page);
465 ev_render_context_set_rotation (job_info->rc, job_render->rotation);
466 ev_render_context_set_scale (job_info->rc, job_render->scale);
469 if (job_info->surface) {
470 cairo_surface_destroy (job_info->surface);
472 job_info->surface = cairo_surface_reference (job_render->surface);
474 job_info->points_set = FALSE;
475 if (job_render->flags & EV_RENDER_INCLUDE_SELECTION) {
476 if (job_info->selection) {
477 cairo_surface_destroy (job_info->selection);
478 job_info->selection = NULL;
480 if (job_info->selection_region) {
481 gdk_region_destroy (job_info->selection_region);
482 job_info->selection_region = NULL;
485 job_info->selection_points = job_render->selection_points;
486 job_info->selection_region = gdk_region_copy (job_render->selection_region);
487 job_info->selection = cairo_surface_reference (job_render->selection);
488 g_assert (job_info->selection_points.x1 >= 0);
489 job_info->points_set = TRUE;
493 g_signal_handlers_disconnect_by_func (job_info->job,
494 G_CALLBACK (job_page_ready_cb),
498 job_info->page_ready = TRUE;
502 copy_job_to_job_info (EvJobRender *job_render,
503 CacheJobInfo *job_info,
504 EvPixbufCache *pixbuf_cache)
506 if (!job_info->page_ready) {
507 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
508 copy_job_page_and_selection_to_job_info (job_render,
513 if (job_render->flags & EV_RENDER_INCLUDE_LINKS) {
514 if (job_info->link_mapping)
515 ev_mapping_list_free (job_info->link_mapping, g_object_unref);
516 job_info->link_mapping = job_render->link_mapping;
519 if (job_render->flags & EV_RENDER_INCLUDE_IMAGES) {
520 if (job_info->image_mapping)
521 ev_mapping_list_free (job_info->image_mapping, g_object_unref);
522 job_info->image_mapping = job_render->image_mapping;
525 if (job_render->flags & EV_RENDER_INCLUDE_FORMS) {
526 if (job_info->form_field_mapping)
527 ev_mapping_list_free (job_info->form_field_mapping, g_object_unref);
528 job_info->form_field_mapping = job_render->form_field_mapping;
531 if (job_render->flags & EV_RENDER_INCLUDE_ANNOTS) {
532 if (job_info->annots_mapping)
533 ev_mapping_list_free (job_info->annots_mapping, g_object_unref);
534 job_info->annots_mapping = job_render->annots_mapping;
537 if (job_render->flags & EV_RENDER_INCLUDE_TEXT) {
538 if (job_info->text_mapping)
539 gdk_region_destroy (job_info->text_mapping);
540 job_info->text_mapping = job_render->text_mapping;
544 g_signal_handlers_disconnect_by_func (job_info->job,
545 G_CALLBACK (job_finished_cb),
547 ev_job_cancel (job_info->job);
548 g_object_unref (job_info->job);
549 job_info->job = NULL;
553 static CacheJobInfo *
554 find_job_cache (EvPixbufCache *pixbuf_cache,
559 if (page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size) ||
560 page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))
563 if (page < pixbuf_cache->start_page) {
564 page_offset = (page - (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size));
566 g_assert (page_offset >= 0 &&
567 page_offset < pixbuf_cache->preload_cache_size);
568 return pixbuf_cache->prev_job + page_offset;
571 if (page > pixbuf_cache->end_page) {
572 page_offset = (page - (pixbuf_cache->end_page + 1));
574 g_assert (page_offset >= 0 &&
575 page_offset < pixbuf_cache->preload_cache_size);
576 return pixbuf_cache->next_job + page_offset;
579 page_offset = page - pixbuf_cache->start_page;
580 g_assert (page_offset >= 0 &&
581 page_offset <= PAGE_CACHE_LEN(pixbuf_cache));
582 return pixbuf_cache->job_list + page_offset;
586 ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache,
589 EvPageCache *page_cache;
592 page_cache = ev_page_cache_get (pixbuf_cache->document);
594 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
595 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->job_list + i, page_cache, scale);
598 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
599 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->prev_job + i, page_cache, scale);
600 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->next_job + i, page_cache, scale);
605 get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base)
607 if (GTK_WIDGET_HAS_FOCUS (widget)) {
608 *text = &widget->style->text [GTK_STATE_SELECTED];
609 *base = &widget->style->base [GTK_STATE_SELECTED];
611 *text = &widget->style->text [GTK_STATE_ACTIVE];
612 *base = &widget->style->base [GTK_STATE_ACTIVE];
617 add_job (EvPixbufCache *pixbuf_cache,
618 CacheJobInfo *job_info,
625 EvJobPriority priority)
627 EvRenderFlags flags = 0;
629 job_info->page_ready = FALSE;
631 if (job_info->region)
632 gdk_region_destroy (job_info->region);
633 job_info->region = region ? gdk_region_copy (region) : NULL;
635 /* Figure out what else we need for this job */
636 if (job_info->link_mapping == NULL)
637 flags |= EV_RENDER_INCLUDE_LINKS;
638 if (job_info->image_mapping == NULL)
639 flags |= EV_RENDER_INCLUDE_IMAGES;
640 if (job_info->form_field_mapping == NULL)
641 flags |= EV_RENDER_INCLUDE_FORMS;
642 if (job_info->annots_mapping == NULL)
643 flags |= EV_RENDER_INCLUDE_ANNOTS;
644 if (job_info->text_mapping == NULL)
645 flags |= EV_RENDER_INCLUDE_TEXT;
647 job_info->job = ev_job_render_new (pixbuf_cache->document,
648 page, rotation, scale,
652 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
653 GdkColor *text, *base;
655 gtk_widget_ensure_style (pixbuf_cache->view);
656 get_selection_colors (pixbuf_cache->view, &text, &base);
657 ev_job_render_set_selection_info (EV_JOB_RENDER (job_info->job),
658 &(job_info->target_points),
659 job_info->selection_style,
663 g_signal_connect (job_info->job, "page-ready",
664 G_CALLBACK (job_page_ready_cb),
666 g_signal_connect (job_info->job, "finished",
667 G_CALLBACK (job_finished_cb),
669 ev_job_scheduler_push_job (job_info->job, priority);
673 add_job_if_needed (EvPixbufCache *pixbuf_cache,
674 CacheJobInfo *job_info,
675 EvPageCache *page_cache,
679 EvJobPriority priority)
686 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
687 page, scale, rotation,
690 if (job_info->surface &&
691 cairo_image_surface_get_width (job_info->surface) == width &&
692 cairo_image_surface_get_height (job_info->surface) == height)
695 add_job (pixbuf_cache, job_info, NULL,
696 width, height, page, rotation, scale,
701 ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache,
705 EvPageCache *page_cache;
706 CacheJobInfo *job_info;
710 page_cache = ev_page_cache_get (pixbuf_cache->document);
712 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
713 job_info = (pixbuf_cache->job_list + i);
714 page = pixbuf_cache->start_page + i;
716 add_job_if_needed (pixbuf_cache, job_info,
717 page_cache, page, rotation, scale,
718 EV_JOB_PRIORITY_URGENT);
721 for (i = FIRST_VISIBLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) {
722 job_info = (pixbuf_cache->prev_job + i);
723 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i;
725 add_job_if_needed (pixbuf_cache, job_info,
726 page_cache, page, rotation, scale,
727 EV_JOB_PRIORITY_LOW);
730 for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache); i++) {
731 job_info = (pixbuf_cache->next_job + i);
732 page = pixbuf_cache->end_page + 1 + i;
734 add_job_if_needed (pixbuf_cache, job_info,
735 page_cache, page, rotation, scale,
736 EV_JOB_PRIORITY_LOW);
742 ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
747 GList *selection_list)
749 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
751 g_return_if_fail (start_page >= 0 && start_page < ev_document_get_n_pages (pixbuf_cache->document));
752 g_return_if_fail (end_page >= 0 && end_page < ev_document_get_n_pages (pixbuf_cache->document));
753 g_return_if_fail (end_page >= start_page);
755 /* First, resize the page_range as needed. We cull old pages
757 ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page);
759 /* Then, we update the current jobs to see if any of them are the wrong
760 * size, we remove them if we need to. */
761 ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale);
763 /* Next, we update the target selection for our pages */
764 ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list);
766 /* Finally, we add the new jobs for all the sizes that don't have a
768 ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale);
772 ev_pixbuf_cache_get_surface (EvPixbufCache *pixbuf_cache,
775 CacheJobInfo *job_info;
777 job_info = find_job_cache (pixbuf_cache, page);
778 if (job_info == NULL)
781 if (job_info->page_ready)
782 return job_info->surface;
784 /* We don't need to wait for the idle to handle the callback */
786 EV_JOB_RENDER (job_info->job)->page_ready) {
787 copy_job_page_and_selection_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
788 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
791 return job_info->surface;
795 ev_pixbuf_cache_get_link_mapping (EvPixbufCache *pixbuf_cache,
798 CacheJobInfo *job_info;
800 job_info = find_job_cache (pixbuf_cache, page);
801 if (job_info == NULL)
804 /* We don't need to wait for the idle to handle the callback */
806 EV_JOB (job_info->job)->finished) {
807 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
810 return job_info->link_mapping;
814 ev_pixbuf_cache_get_image_mapping (EvPixbufCache *pixbuf_cache,
817 CacheJobInfo *job_info;
819 if (!EV_IS_DOCUMENT_IMAGES (pixbuf_cache->document))
822 job_info = find_job_cache (pixbuf_cache, page);
823 if (job_info == NULL)
826 /* We don't need to wait for the idle to handle the callback */
828 EV_JOB (job_info->job)->finished) {
829 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
832 return job_info->image_mapping;
836 ev_pixbuf_cache_get_form_field_mapping (EvPixbufCache *pixbuf_cache,
839 CacheJobInfo *job_info;
841 if (!EV_IS_DOCUMENT_FORMS (pixbuf_cache->document))
844 job_info = find_job_cache (pixbuf_cache, page);
845 if (job_info == NULL)
848 /* We don't need to wait for the idle to handle the callback */
850 EV_JOB (job_info->job)->finished) {
851 copy_job_to_job_info (EV_JOB_RENDER(job_info->job), job_info, pixbuf_cache);
854 return job_info->form_field_mapping;
858 ev_pixbuf_cache_get_annots_mapping (EvPixbufCache *pixbuf_cache,
861 CacheJobInfo *job_info;
863 if (!EV_IS_DOCUMENT_ANNOTATIONS (pixbuf_cache->document))
866 job_info = find_job_cache (pixbuf_cache, page);
867 if (job_info == NULL)
870 /* We don't need to wait for the idle to handle the callback */
872 EV_JOB (job_info->job)->finished) {
873 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
876 return job_info->annots_mapping;
880 new_selection_surface_needed (EvPixbufCache *pixbuf_cache,
881 CacheJobInfo *job_info,
885 if (job_info->selection && job_info->rc) {
887 gint selection_width, selection_height;
889 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
890 page, scale, job_info->rc->rotation,
893 selection_width = cairo_image_surface_get_width (job_info->selection);
894 selection_height = cairo_image_surface_get_height (job_info->selection);
896 if (width != selection_width || height != selection_height)
899 if (job_info->points_set)
907 clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
908 CacheJobInfo *job_info,
912 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
913 if (job_info->selection)
914 cairo_surface_destroy (job_info->selection);
915 job_info->selection = NULL;
916 job_info->selection_points.x1 = -1;
921 ev_pixbuf_cache_get_text_mapping (EvPixbufCache *pixbuf_cache,
924 CacheJobInfo *job_info;
926 job_info = find_job_cache (pixbuf_cache, page);
927 if (job_info == NULL)
930 /* We don't need to wait for the idle to handle the callback */
932 EV_JOB (job_info->job)->finished) {
933 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
936 return job_info->text_mapping;
939 /* Clears the cache of jobs and pixbufs.
942 ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache)
946 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
947 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
948 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
951 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
952 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
958 ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache)
962 /* FIXME: doesn't update running jobs. */
963 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
964 CacheJobInfo *job_info;
966 job_info = pixbuf_cache->prev_job + i;
967 if (job_info->selection) {
968 cairo_surface_destroy (job_info->selection);
969 job_info->selection = NULL;
972 job_info = pixbuf_cache->next_job + i;
973 if (job_info->selection) {
974 cairo_surface_destroy (job_info->selection);
975 job_info->selection = NULL;
979 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
980 CacheJobInfo *job_info;
982 job_info = pixbuf_cache->job_list + i;
983 if (job_info->selection) {
984 cairo_surface_destroy (job_info->selection);
985 job_info->selection = NULL;
991 ev_pixbuf_cache_get_selection_surface (EvPixbufCache *pixbuf_cache,
996 CacheJobInfo *job_info;
998 /* the document does not implement the selection interface */
999 if (!EV_IS_SELECTION (pixbuf_cache->document))
1002 job_info = find_job_cache (pixbuf_cache, page);
1003 if (job_info == NULL)
1006 /* No selection on this page */
1007 if (!job_info->points_set)
1010 /* Create new render context if needed (selection + fast scrolling) */
1011 if (job_info->rc == NULL) {
1013 ev_page = ev_document_get_page (pixbuf_cache->document, page);
1014 job_info->rc = ev_render_context_new (ev_page, 0, scale);
1015 g_object_unref (ev_page);
1019 ev_render_context_set_scale (job_info->rc, scale);
1021 /* If we have a running job, we just return what we have under the
1022 * assumption that it'll be updated later and we can scale it as need
1024 if (job_info->job && (EV_JOB_RENDER (job_info->job)->flags & EV_RENDER_INCLUDE_SELECTION))
1025 return job_info->selection;
1027 /* Now, lets see if we need to resize the image. If we do, we clear the
1029 clear_selection_if_needed (pixbuf_cache, job_info, page, scale);
1031 /* Finally, we see if the two scales are the same, and get a new pixbuf
1032 * if needed. We do this synchronously for now. At some point, we
1033 * _should_ be able to get rid of the doc_mutex, so the synchronicity
1034 * doesn't kill us. Rendering a few glyphs should really be fast.
1036 if (ev_rect_cmp (&(job_info->target_points), &(job_info->selection_points))) {
1037 EvRectangle *old_points;
1038 GdkColor *text, *base;
1040 /* we need to get a new selection pixbuf */
1041 ev_document_doc_mutex_lock ();
1042 if (job_info->selection_points.x1 < 0) {
1043 g_assert (job_info->selection == NULL);
1046 g_assert (job_info->selection != NULL);
1047 old_points = &(job_info->selection_points);
1050 if (job_info->selection_region)
1051 gdk_region_destroy (job_info->selection_region);
1052 job_info->selection_region =
1053 ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document),
1055 job_info->selection_style,
1056 &(job_info->target_points));
1058 gtk_widget_ensure_style (pixbuf_cache->view);
1060 get_selection_colors (pixbuf_cache->view, &text, &base);
1062 ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
1063 job_info->rc, &(job_info->selection),
1064 &(job_info->target_points),
1066 job_info->selection_style,
1068 job_info->selection_points = job_info->target_points;
1069 ev_document_doc_mutex_unlock ();
1072 *region = job_info->selection_region;
1073 return job_info->selection;
1077 update_job_selection (CacheJobInfo *job_info,
1078 EvViewSelection *selection)
1080 job_info->points_set = TRUE;
1081 job_info->target_points = selection->rect;
1082 job_info->selection_style = selection->style;
1086 clear_job_selection (CacheJobInfo *job_info)
1088 job_info->points_set = FALSE;
1089 job_info->selection_points.x1 = -1;
1091 if (job_info->selection) {
1092 cairo_surface_destroy (job_info->selection);
1093 job_info->selection = NULL;
1097 /* This function will reset the selection on pages that no longer have them, and
1098 * will update the target_selection on those that need it. It will _not_ free
1099 * the previous selection_list -- that's up to caller to do.
1102 ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
1103 GList *selection_list)
1105 EvViewSelection *selection;
1106 GList *list = selection_list;
1110 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
1112 if (!EV_IS_SELECTION (pixbuf_cache->document))
1115 /* We check each area to see what needs updating, and what needs freeing; */
1116 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1117 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1125 if (((EvViewSelection *)list->data)->page == page) {
1126 selection = list->data;
1128 } else if (((EvViewSelection *)list->data)->page > page)
1134 update_job_selection (pixbuf_cache->prev_job + i, selection);
1136 clear_job_selection (pixbuf_cache->prev_job + i);
1140 page = pixbuf_cache->start_page;
1141 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1144 if (((EvViewSelection *)list->data)->page == page) {
1145 selection = list->data;
1147 } else if (((EvViewSelection *)list->data)->page > page)
1153 update_job_selection (pixbuf_cache->job_list + i, selection);
1155 clear_job_selection (pixbuf_cache->job_list + i);
1159 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1160 if (page >= ev_document_get_n_pages (pixbuf_cache->document))
1165 if (((EvViewSelection *)list->data)->page == page) {
1166 selection = list->data;
1168 } else if (((EvViewSelection *)list->data)->page > page)
1174 update_job_selection (pixbuf_cache->next_job + i, selection);
1176 clear_job_selection (pixbuf_cache->next_job + i);
1182 /* Returns what the pixbuf cache thinks is */
1185 ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
1187 EvViewSelection *selection;
1188 GList *retval = NULL;
1192 g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
1194 /* We check each area to see what needs updating, and what needs freeing; */
1195 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1196 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1202 if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) {
1203 selection = g_new0 (EvViewSelection, 1);
1204 selection->page = page;
1205 selection->rect = pixbuf_cache->prev_job[i].selection_points;
1206 if (pixbuf_cache->prev_job[i].selection_region)
1207 selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region);
1208 retval = g_list_append (retval, selection);
1214 page = pixbuf_cache->start_page;
1215 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1216 if (pixbuf_cache->job_list[i].selection_points.x1 != -1) {
1217 selection = g_new0 (EvViewSelection, 1);
1218 selection->page = page;
1219 selection->rect = pixbuf_cache->job_list[i].selection_points;
1220 if (pixbuf_cache->job_list[i].selection_region)
1221 selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region);
1222 retval = g_list_append (retval, selection);
1228 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1229 if (page >= ev_document_get_n_pages (pixbuf_cache->document))
1232 if (pixbuf_cache->next_job[i].selection_points.x1 != -1) {
1233 selection = g_new0 (EvViewSelection, 1);
1234 selection->page = page;
1235 selection->rect = pixbuf_cache->next_job[i].selection_points;
1236 if (pixbuf_cache->next_job[i].selection_region)
1237 selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region);
1238 retval = g_list_append (retval, selection);
1248 ev_pixbuf_cache_reload_page (EvPixbufCache *pixbuf_cache,
1254 CacheJobInfo *job_info;
1257 job_info = find_job_cache (pixbuf_cache, page);
1258 if (job_info == NULL)
1261 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
1262 page, scale, rotation,
1264 add_job (pixbuf_cache, job_info, region,
1265 width, height, page, rotation, scale,
1266 EV_JOB_PRIORITY_URGENT);