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_if_needed (EvPixbufCache *pixbuf_cache,
549 CacheJobInfo *job_info,
550 EvPageCache *page_cache,
554 EvJobPriority priority)
556 gboolean include_forms = FALSE;
557 gboolean include_links = FALSE;
558 gboolean include_text = FALSE;
559 gboolean include_selection = FALSE;
560 gboolean include_images = FALSE;
562 GdkColor *text, *base;
567 ev_page_cache_get_size (page_cache, page, rotation,
568 scale, &width, &height);
570 if (job_info->surface &&
571 cairo_image_surface_get_width (job_info->surface) == width &&
572 cairo_image_surface_get_height (job_info->surface) == height)
575 /* make a new job now */
576 if (job_info->rc == NULL) {
577 job_info->rc = ev_render_context_new (rotation, page, scale);
579 ev_render_context_set_rotation (job_info->rc, rotation);
580 ev_render_context_set_page (job_info->rc, page);
581 ev_render_context_set_scale (job_info->rc, scale);
584 /* Figure out what else we need for this job */
585 if (job_info->link_mapping == NULL)
586 include_links = TRUE;
587 if (job_info->image_mapping == NULL)
588 include_images = TRUE;
589 if (job_info->form_field_mapping == NULL)
590 include_forms = TRUE;
591 if (job_info->text_mapping == NULL)
593 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
594 include_selection = TRUE;
597 gtk_widget_ensure_style (pixbuf_cache->view);
599 get_selection_colors (pixbuf_cache->view, &text, &base);
601 job_info->job = ev_job_render_new (pixbuf_cache->document,
604 &(job_info->target_points),
611 ev_job_queue_add_job (job_info->job, priority);
612 g_signal_connect (job_info->job, "finished", G_CALLBACK (job_finished_cb), pixbuf_cache);
617 ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache,
621 EvPageCache *page_cache;
622 CacheJobInfo *job_info;
626 page_cache = ev_page_cache_get (pixbuf_cache->document);
628 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
629 job_info = (pixbuf_cache->job_list + i);
630 page = pixbuf_cache->start_page + i;
632 add_job_if_needed (pixbuf_cache, job_info,
633 page_cache, page, rotation, scale,
634 EV_JOB_PRIORITY_HIGH);
637 for (i = FIRST_VISABLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) {
638 job_info = (pixbuf_cache->prev_job + i);
639 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i;
641 add_job_if_needed (pixbuf_cache, job_info,
642 page_cache, page, rotation, scale,
643 EV_JOB_PRIORITY_LOW);
646 for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache, page_cache); i++) {
647 job_info = (pixbuf_cache->next_job + i);
648 page = pixbuf_cache->end_page + 1 + i;
650 add_job_if_needed (pixbuf_cache, job_info,
651 page_cache, page, rotation, scale,
652 EV_JOB_PRIORITY_LOW);
658 ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
663 GList *selection_list)
665 EvPageCache *page_cache;
667 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
669 page_cache = ev_page_cache_get (pixbuf_cache->document);
671 g_return_if_fail (start_page >= 0 && start_page < ev_page_cache_get_n_pages (page_cache));
672 g_return_if_fail (end_page >= 0 && end_page < ev_page_cache_get_n_pages (page_cache));
673 g_return_if_fail (end_page >= start_page);
675 /* First, resize the page_range as needed. We cull old pages
677 ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page);
679 /* Then, we update the current jobs to see if any of them are the wrong
680 * size, we remove them if we need to. */
681 ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale);
683 /* Next, we update the target selection for our pages */
684 ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list);
686 /* Finally, we add the new jobs for all the sizes that don't have a
688 ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale);
692 ev_pixbuf_cache_get_surface (EvPixbufCache *pixbuf_cache,
695 CacheJobInfo *job_info;
697 job_info = find_job_cache (pixbuf_cache, page);
698 if (job_info == NULL)
701 /* We don't need to wait for the idle to handle the callback */
703 EV_JOB (job_info->job)->finished) {
704 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
705 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
708 return job_info->surface;
712 ev_pixbuf_cache_get_link_mapping (EvPixbufCache *pixbuf_cache,
715 CacheJobInfo *job_info;
717 job_info = find_job_cache (pixbuf_cache, page);
718 if (job_info == NULL)
721 /* We don't need to wait for the idle to handle the callback */
723 EV_JOB (job_info->job)->finished) {
724 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
725 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
728 return job_info->link_mapping;
732 ev_pixbuf_cache_get_image_mapping (EvPixbufCache *pixbuf_cache,
735 CacheJobInfo *job_info;
737 if (!EV_IS_DOCUMENT_IMAGES (pixbuf_cache->document))
740 job_info = find_job_cache (pixbuf_cache, page);
741 if (job_info == NULL)
744 /* We don't need to wait for the idle to handle the callback */
746 EV_JOB (job_info->job)->finished) {
747 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
748 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
751 return job_info->image_mapping;
755 new_selection_surface_needed (EvPixbufCache *pixbuf_cache,
756 CacheJobInfo *job_info,
760 EvPageCache *page_cache;
762 if (job_info->selection) {
764 gint selection_width, selection_height;
766 page_cache = ev_page_cache_get (pixbuf_cache->document);
767 ev_page_cache_get_size (page_cache, page,
768 job_info->rc->rotation,
769 scale, &width, &height);
771 selection_width = cairo_image_surface_get_width (job_info->selection);
772 selection_height = cairo_image_surface_get_height (job_info->selection);
774 if (width != selection_width || height != selection_height)
777 if (job_info->points_set)
785 clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
786 CacheJobInfo *job_info,
790 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
791 if (job_info->selection)
792 cairo_surface_destroy (job_info->selection);
793 job_info->selection = NULL;
794 job_info->selection_points.x1 = -1;
799 ev_pixbuf_cache_get_text_mapping (EvPixbufCache *pixbuf_cache,
802 CacheJobInfo *job_info;
804 job_info = find_job_cache (pixbuf_cache, page);
805 if (job_info == NULL)
808 /* We don't need to wait for the idle to handle the callback */
810 EV_JOB (job_info->job)->finished) {
811 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
812 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
815 return job_info->text_mapping;
818 /* Clears the cache of jobs and pixbufs.
821 ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache)
825 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
826 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
827 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
830 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
831 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
837 ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache)
841 /* FIXME: doesn't update running jobs. */
842 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
843 CacheJobInfo *job_info;
845 job_info = pixbuf_cache->prev_job + i;
846 if (job_info->selection) {
847 cairo_surface_destroy (job_info->selection);
848 job_info->selection = NULL;
851 job_info = pixbuf_cache->next_job + i;
852 if (job_info->selection) {
853 cairo_surface_destroy (job_info->selection);
854 job_info->selection = NULL;
858 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
859 CacheJobInfo *job_info;
861 job_info = pixbuf_cache->job_list + i;
862 if (job_info->selection) {
863 cairo_surface_destroy (job_info->selection);
864 job_info->selection = NULL;
870 ev_pixbuf_cache_get_selection_surface (EvPixbufCache *pixbuf_cache,
875 CacheJobInfo *job_info;
877 /* the document does not implement the selection interface */
878 if (!EV_IS_SELECTION (pixbuf_cache->document))
881 job_info = find_job_cache (pixbuf_cache, page);
882 if (job_info == NULL)
885 /* No selection on this page */
886 if (!job_info->points_set)
890 g_assert (job_info->rc);
891 ev_render_context_set_scale (job_info->rc, scale);
893 /* If we have a running job, we just return what we have under the
894 * assumption that it'll be updated later and we can scale it as need
896 if (job_info->job && EV_JOB_RENDER (job_info->job)->include_selection)
897 return job_info->selection;
899 /* Now, lets see if we need to resize the image. If we do, we clear the
901 clear_selection_if_needed (pixbuf_cache, job_info, page, scale);
903 /* Finally, we see if the two scales are the same, and get a new pixbuf
904 * if needed. We do this synchronously for now. At some point, we
905 * _should_ be able to get rid of the doc_mutex, so the synchronicity
906 * doesn't kill us. Rendering a few glyphs should really be fast.
908 if (ev_rect_cmp (&(job_info->target_points), &(job_info->selection_points))) {
909 EvRectangle *old_points;
910 GdkColor *text, *base;
912 /* we need to get a new selection pixbuf */
913 ev_document_doc_mutex_lock ();
914 if (job_info->selection_points.x1 < 0) {
915 g_assert (job_info->selection == NULL);
918 g_assert (job_info->selection != NULL);
919 old_points = &(job_info->selection_points);
922 if (job_info->selection_region)
923 gdk_region_destroy (job_info->selection_region);
924 job_info->selection_region =
925 ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document),
927 &(job_info->target_points));
929 gtk_widget_ensure_style (pixbuf_cache->view);
931 get_selection_colors (pixbuf_cache->view, &text, &base);
933 ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
934 job_info->rc, &(job_info->selection),
935 &(job_info->target_points),
938 job_info->selection_points = job_info->target_points;
939 ev_document_doc_mutex_unlock ();
942 *region = job_info->selection_region;
943 return job_info->selection;
947 update_job_selection (CacheJobInfo *job_info,
948 EvViewSelection *selection)
950 job_info->points_set = TRUE;
951 job_info->target_points = selection->rect;
955 clear_job_selection (CacheJobInfo *job_info)
957 job_info->points_set = FALSE;
958 job_info->selection_points.x1 = -1;
960 if (job_info->selection) {
961 cairo_surface_destroy (job_info->selection);
962 job_info->selection = NULL;
966 /* This function will reset the selection on pages that no longer have them, and
967 * will update the target_selection on those that need it. It will _not_ free
968 * the previous selection_list -- that's up to caller to do.
971 ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
972 GList *selection_list)
974 EvPageCache *page_cache;
975 EvViewSelection *selection;
976 GList *list = selection_list;
980 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
982 if (!EV_IS_SELECTION (pixbuf_cache->document))
985 page_cache = ev_page_cache_get (pixbuf_cache->document);
987 /* We check each area to see what needs updating, and what needs freeing; */
988 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
989 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
997 if (((EvViewSelection *)list->data)->page == page) {
998 selection = list->data;
1000 } else if (((EvViewSelection *)list->data)->page > page)
1006 update_job_selection (pixbuf_cache->prev_job + i, selection);
1008 clear_job_selection (pixbuf_cache->prev_job + i);
1012 page = pixbuf_cache->start_page;
1013 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1016 if (((EvViewSelection *)list->data)->page == page) {
1017 selection = list->data;
1019 } else if (((EvViewSelection *)list->data)->page > page)
1025 update_job_selection (pixbuf_cache->job_list + i, selection);
1027 clear_job_selection (pixbuf_cache->job_list + i);
1031 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1032 if (page >= ev_page_cache_get_n_pages (page_cache))
1037 if (((EvViewSelection *)list->data)->page == page) {
1038 selection = list->data;
1040 } else if (((EvViewSelection *)list->data)->page > page)
1046 update_job_selection (pixbuf_cache->next_job + i, selection);
1048 clear_job_selection (pixbuf_cache->next_job + i);
1054 /* Returns what the pixbuf cache thinks is */
1057 ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
1059 EvPageCache *page_cache;
1060 EvViewSelection *selection;
1061 GList *retval = NULL;
1065 g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
1067 page_cache = ev_page_cache_get (pixbuf_cache->document);
1069 /* We check each area to see what needs updating, and what needs freeing; */
1070 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1071 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1077 if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) {
1078 selection = g_new0 (EvViewSelection, 1);
1079 selection->page = page;
1080 selection->rect = pixbuf_cache->prev_job[i].selection_points;
1081 if (pixbuf_cache->prev_job[i].selection_region)
1082 selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region);
1083 retval = g_list_append (retval, selection);
1089 page = pixbuf_cache->start_page;
1090 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1091 if (pixbuf_cache->job_list[i].selection_points.x1 != -1) {
1092 selection = g_new0 (EvViewSelection, 1);
1093 selection->page = page;
1094 selection->rect = pixbuf_cache->job_list[i].selection_points;
1095 if (pixbuf_cache->job_list[i].selection_region)
1096 selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region);
1097 retval = g_list_append (retval, selection);
1103 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1104 if (page >= ev_page_cache_get_n_pages (page_cache))
1107 if (pixbuf_cache->next_job[i].selection_points.x1 != -1) {
1108 selection = g_new0 (EvViewSelection, 1);
1109 selection->page = page;
1110 selection->rect = pixbuf_cache->next_job[i].selection_points;
1111 if (pixbuf_cache->next_job[i].selection_region)
1112 selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region);
1113 retval = g_list_append (retval, selection);
1122 static void add_job (EvPixbufCache *pixbuf_cache,
1123 CacheJobInfo *job_info,
1124 EvPageCache *page_cache,
1128 EvJobPriority priority,
1132 gboolean include_links = FALSE;
1133 gboolean include_text = FALSE;
1134 gboolean include_selection = FALSE;
1135 gboolean include_images = TRUE;
1136 gboolean include_forms = FALSE;
1137 GdkColor *text, *base;
1140 if (job_info->rc == NULL) {
1141 job_info->rc = ev_render_context_new (rotation, page, scale);
1143 ev_render_context_set_rotation (job_info->rc, rotation);
1144 ev_render_context_set_page (job_info->rc, page);
1145 ev_render_context_set_scale (job_info->rc, scale);
1148 /* Figure out what else we need for this job */
1149 if (job_info->link_mapping == NULL)
1150 include_links = TRUE;
1151 if (job_info->image_mapping == NULL)
1152 include_images = TRUE;
1153 if (job_info->form_field_mapping == NULL)
1154 include_forms = TRUE;
1155 if (job_info->text_mapping == NULL)
1156 include_text = TRUE;
1157 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
1158 include_selection = TRUE;
1161 gtk_widget_ensure_style (pixbuf_cache->view);
1163 get_selection_colors (pixbuf_cache->view, &text, &base);
1165 job_info->job = ev_job_render_new (pixbuf_cache->document,
1168 &(job_info->target_points),
1175 ev_job_queue_add_job (job_info->job, priority);
1176 g_signal_connect (job_info->job, "finished", G_CALLBACK (job_finished_cb), pixbuf_cache);
1181 ev_pixbuf_cache_reload_page (EvPixbufCache *pixbuf_cache,
1186 CacheJobInfo *job_info;
1187 EvPageCache *page_cache;
1190 if(page < pixbuf_cache->start_page || page > pixbuf_cache->end_page)
1192 page_cache = ev_page_cache_get (pixbuf_cache->document);
1193 ev_page_cache_get_size (page_cache, page, rotation, scale, &width, &height);
1194 job_info = pixbuf_cache->job_list + (page - pixbuf_cache->start_page);
1196 //dispose_cache_job_info (job_info, pixbuf_cache);
1198 add_job(pixbuf_cache, job_info, page_cache, page, rotation, scale, EV_JOB_PRIORITY_HIGH, width, height);
1204 ev_pixbuf_cache_get_form_field_mapping (EvPixbufCache *pixbuf_cache,
1207 CacheJobInfo *job_info;
1209 job_info = find_job_cache (pixbuf_cache, page);
1210 if(job_info == NULL)
1214 EV_JOB(job_info->job)->finished) {
1215 copy_job_to_job_info (EV_JOB_RENDER(job_info->job), job_info, pixbuf_cache);
1217 return job_info->form_field_mapping;