1 #include "ev-pixbuf-cache.h"
2 #include "ev-job-queue.h"
3 #include "ev-page-cache.h"
4 #include "ev-selection.h"
6 typedef struct _CacheJobInfo
12 GdkRegion *text_mapping;
14 /* Selection info. If the *_points structs are unset, we put -1 in x1.
15 * selection_points are the coordinates encapsulated in selection.
16 * new_points is the target selection size. */
17 EvRectangle selection_points;
19 GdkRegion *selection_region;
20 EvRectangle new_points;
27 /* We keep a link to our containing view just for style information. */
33 /* preload_cache_size is the number of pages prior to the current
34 * visible area that we cache. It's normally 1, but could be 2 in the
37 int preload_cache_size;
38 CacheJobInfo *prev_job;
39 CacheJobInfo *job_list;
40 CacheJobInfo *next_job;
43 struct _EvPixbufCacheClass
45 GObjectClass parent_class;
47 void (* job_finished) (EvPixbufCache *pixbuf_cache);
57 static guint signals[N_SIGNALS] = {0, };
59 static void ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache);
60 static void ev_pixbuf_cache_class_init (EvPixbufCacheClass *pixbuf_cache);
61 static void ev_pixbuf_cache_finalize (GObject *object);
62 static void ev_pixbuf_cache_dispose (GObject *object);
63 static void job_finished_cb (EvJob *job,
64 EvPixbufCache *pixbuf_cache);
65 static CacheJobInfo *find_job_cache (EvPixbufCache *pixbuf_cache,
67 static void copy_job_to_job_info (EvJobRender *job_render,
68 CacheJobInfo *job_info,
69 EvPixbufCache *pixbuf_cache);
70 static gboolean new_selection_pixbuf_needed(EvPixbufCache *pixbuf_cache,
71 CacheJobInfo *job_info,
76 /* These are used for iterating through the prev and next arrays */
77 #define FIRST_VISABLE_PREV(pixbuf_cache) \
78 (MAX (0, pixbuf_cache->preload_cache_size + 1 - pixbuf_cache->start_page))
79 #define VISIBLE_NEXT_LEN(pixbuf_cache, page_cache) \
80 (MIN(pixbuf_cache->preload_cache_size, ev_page_cache_get_n_pages (page_cache) - (1 + pixbuf_cache->end_page)))
81 #define PAGE_CACHE_LEN(pixbuf_cache) \
82 ((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1)
84 G_DEFINE_TYPE (EvPixbufCache, ev_pixbuf_cache, G_TYPE_OBJECT)
87 ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache)
89 pixbuf_cache->start_page = 0;
90 pixbuf_cache->end_page = 0;
91 pixbuf_cache->job_list = g_new0 (CacheJobInfo, PAGE_CACHE_LEN (pixbuf_cache));
93 pixbuf_cache->preload_cache_size = 2;
94 pixbuf_cache->prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
95 pixbuf_cache->next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
99 ev_pixbuf_cache_class_init (EvPixbufCacheClass *class)
101 GObjectClass *object_class;
103 object_class = G_OBJECT_CLASS (class);
105 object_class->finalize = ev_pixbuf_cache_finalize;
106 object_class->dispose = ev_pixbuf_cache_dispose;
108 signals[JOB_FINISHED] = g_signal_new ("job-finished",
109 G_OBJECT_CLASS_TYPE (object_class),
110 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
111 G_STRUCT_OFFSET (EvPixbufCacheClass, job_finished),
113 g_cclosure_marshal_VOID__VOID,
118 ev_pixbuf_cache_finalize (GObject *object)
120 EvPixbufCache *pixbuf_cache;
122 pixbuf_cache = EV_PIXBUF_CACHE (object);
124 g_free (pixbuf_cache->prev_job);
125 g_free (pixbuf_cache->job_list);
126 g_free (pixbuf_cache->next_job);
130 dispose_cache_job_info (CacheJobInfo *job_info,
133 if (job_info == NULL)
136 g_signal_handlers_disconnect_by_func (job_info->job,
137 G_CALLBACK (job_finished_cb),
139 ev_job_queue_remove_job (job_info->job);
140 g_object_unref (G_OBJECT (job_info->job));
141 job_info->job = NULL;
143 if (job_info->pixbuf) {
144 g_object_unref (G_OBJECT (job_info->pixbuf));
145 job_info->pixbuf = NULL;
147 if (job_info->link_mapping) {
148 ev_link_mapping_free (job_info->link_mapping);
149 job_info->link_mapping = NULL;
151 if (job_info->text_mapping) {
152 gdk_region_destroy (job_info->text_mapping);
153 job_info->text_mapping = NULL;
155 if (job_info->selection) {
156 g_object_unref (G_OBJECT (job_info->selection));
157 job_info->selection = NULL;
159 if (job_info->selection_region) {
160 gdk_region_destroy (job_info->selection_region);
161 job_info->selection_region = NULL;
164 g_object_unref (G_OBJECT (job_info->rc));
168 job_info->selection_points.x1 = -1;
169 job_info->new_points.x1 = -1;
173 ev_pixbuf_cache_dispose (GObject *object)
175 EvPixbufCache *pixbuf_cache;
178 pixbuf_cache = EV_PIXBUF_CACHE (object);
180 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
181 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
182 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
185 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
186 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
192 ev_pixbuf_cache_new (GtkWidget *view,
193 EvDocument *document)
195 EvPixbufCache *pixbuf_cache;
197 pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL);
198 /* This is a backlink, so we don't ref this */
199 pixbuf_cache->view = view;
200 pixbuf_cache->document = document;
206 job_finished_cb (EvJob *job,
207 EvPixbufCache *pixbuf_cache)
209 CacheJobInfo *job_info;
210 EvJobRender *job_render = EV_JOB_RENDER (job);
213 /* If the job is outside of our interest, we silently discard it */
214 if ((job_render->rc->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
215 (job_render->rc->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
216 g_object_unref (job);
220 job_info = find_job_cache (pixbuf_cache, job_render->rc->page);
222 pixbuf = g_object_ref (job_render->pixbuf);
223 if (job_info->pixbuf)
224 g_object_unref (job_info->pixbuf);
225 job_info->pixbuf = pixbuf;
227 if (job_render->link_mapping) {
228 if (job_info->link_mapping)
229 ev_link_mapping_free (job_info->link_mapping);
230 job_info->link_mapping = job_render->link_mapping;
233 if (job_render->text_mapping) {
234 if (job_info->text_mapping)
235 gdk_region_destroy (job_info->text_mapping);
236 job_info->text_mapping = job_render->text_mapping;
239 if (job_render->include_selection) {
240 pixbuf = g_object_ref (job_render->selection);
241 if (job_info->selection)
242 g_object_unref (job_info->selection);
243 if (job_info->selection_region)
244 gdk_region_destroy (job_info->selection_region);
245 job_info->selection_points = job_render->selection_points;
246 job_info->selection_region = gdk_region_copy (job_render->selection_region);
247 job_info->selection = pixbuf;
248 g_assert (job_info->selection_points.x1 >= 0);
251 if (job_info->job == job)
252 job_info->job = NULL;
253 g_object_unref (job);
255 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0);
258 /* This checks a job to see if the job would generate the right sized pixbuf
259 * given a scale. If it won't, it removes the job and clears it to NULL.
262 check_job_size_and_unref (CacheJobInfo *job_info,
263 EvPageCache *page_cache,
271 if (job_info->job == NULL)
274 ev_page_cache_get_size (page_cache,
275 EV_JOB_RENDER (job_info->job)->rc->page,
276 EV_JOB_RENDER (job_info->job)->rc->rotation,
280 if (width == EV_JOB_RENDER (job_info->job)->target_width &&
281 height == EV_JOB_RENDER (job_info->job)->target_height)
284 /* Try to remove the job. If we can't, then the thread has already
285 * picked it up and we are going get a signal when it's done. If we
286 * can, then the job is fully dead and will never rnu.. */
287 if (ev_job_queue_remove_job (job_info->job))
288 g_object_unref (job_info->job);
290 job_info->job = NULL;
293 /* Do all function that copies a job from an older cache to it's position in the
294 * new cache. It clears the old job if it doesn't have a place.
297 move_one_job (CacheJobInfo *job_info,
298 EvPixbufCache *pixbuf_cache,
300 CacheJobInfo *new_job_list,
301 CacheJobInfo *new_prev_job,
302 CacheJobInfo *new_next_job,
305 EvJobPriority priority)
307 CacheJobInfo *target_page = NULL;
309 EvJobPriority new_priority;
311 if (page < (start_page - pixbuf_cache->preload_cache_size) ||
312 page > (end_page + pixbuf_cache->preload_cache_size)) {
313 dispose_cache_job_info (job_info, pixbuf_cache);
317 /* find the target page to copy it over to. */
318 if (page < start_page) {
319 page_offset = (page - (start_page - pixbuf_cache->preload_cache_size));
321 g_assert (page_offset >= 0 &&
322 page_offset < pixbuf_cache->preload_cache_size);
323 target_page = new_prev_job + page_offset;
324 new_priority = EV_JOB_PRIORITY_LOW;
325 } else if (page > end_page) {
326 page_offset = (page - (end_page + 1));
328 g_assert (page_offset >= 0 &&
329 page_offset < pixbuf_cache->preload_cache_size);
330 target_page = new_next_job + page_offset;
331 new_priority = EV_JOB_PRIORITY_LOW;
333 page_offset = page - start_page;
334 g_assert (page_offset >= 0 &&
335 page_offset <= ((end_page - start_page) + 1));
336 new_priority = EV_JOB_PRIORITY_HIGH;
337 target_page = new_job_list + page_offset;
340 *target_page = *job_info;
341 job_info->job = NULL;
342 job_info->pixbuf = NULL;
343 job_info->link_mapping = NULL;
345 if (new_priority != priority && target_page->job) {
346 ev_job_queue_update_job (target_page->job, new_priority);
353 ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache,
357 CacheJobInfo *new_job_list;
358 CacheJobInfo *new_prev_job;
359 CacheJobInfo *new_next_job;
360 EvPageCache *page_cache;
363 if (pixbuf_cache->start_page == start_page &&
364 pixbuf_cache->end_page == end_page)
367 page_cache = ev_page_cache_get (pixbuf_cache->document);
369 new_job_list = g_new0 (CacheJobInfo, (end_page - start_page) + 1);
370 new_prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
371 new_next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
373 /* We go through each job in the old cache and either clear it or move
374 * it to a new location. */
376 /* Start with the prev cache. */
377 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
378 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
380 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
382 move_one_job (pixbuf_cache->prev_job + i,
384 new_job_list, new_prev_job, new_next_job,
385 start_page, end_page, EV_JOB_PRIORITY_LOW);
390 page = pixbuf_cache->start_page;
391 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
392 move_one_job (pixbuf_cache->job_list + i,
394 new_job_list, new_prev_job, new_next_job,
395 start_page, end_page, EV_JOB_PRIORITY_HIGH);
399 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
400 if (page >= ev_page_cache_get_n_pages (page_cache)) {
401 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
403 move_one_job (pixbuf_cache->next_job + i,
405 new_job_list, new_prev_job, new_next_job,
406 start_page, end_page, EV_JOB_PRIORITY_LOW);
411 g_free (pixbuf_cache->job_list);
412 g_free (pixbuf_cache->prev_job);
413 g_free (pixbuf_cache->next_job);
415 pixbuf_cache->job_list = new_job_list;
416 pixbuf_cache->prev_job = new_prev_job;
417 pixbuf_cache->next_job = new_next_job;
419 pixbuf_cache->start_page = start_page;
420 pixbuf_cache->end_page = end_page;
424 copy_job_to_job_info (EvJobRender *job_render,
425 CacheJobInfo *job_info,
426 EvPixbufCache *pixbuf_cache)
430 pixbuf = g_object_ref (job_render->pixbuf);
432 dispose_cache_job_info (job_info, pixbuf_cache);
434 job_info->pixbuf = pixbuf;
435 if (job_render->link_mapping)
436 job_info->link_mapping = job_render->link_mapping;
437 if (job_render->text_mapping)
438 job_info->text_mapping = job_render->text_mapping;
441 static CacheJobInfo *
442 find_job_cache (EvPixbufCache *pixbuf_cache,
447 if (page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size) ||
448 page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))
451 if (page < pixbuf_cache->start_page) {
452 page_offset = (page - (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size));
454 g_assert (page_offset >= 0 &&
455 page_offset < pixbuf_cache->preload_cache_size);
456 return pixbuf_cache->prev_job + page_offset;
459 if (page > pixbuf_cache->end_page) {
460 page_offset = (page - (pixbuf_cache->end_page + 1));
462 g_assert (page_offset >= 0 &&
463 page_offset < pixbuf_cache->preload_cache_size);
464 return pixbuf_cache->next_job + page_offset;
467 page_offset = page - pixbuf_cache->start_page;
468 g_assert (page_offset >= 0 &&
469 page_offset <= PAGE_CACHE_LEN(pixbuf_cache));
470 return pixbuf_cache->job_list + page_offset;
474 ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache,
477 EvPageCache *page_cache;
480 page_cache = ev_page_cache_get (pixbuf_cache->document);
482 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
483 check_job_size_and_unref (pixbuf_cache->job_list + i, page_cache, scale);
486 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
487 check_job_size_and_unref (pixbuf_cache->prev_job + i, page_cache, scale);
488 check_job_size_and_unref (pixbuf_cache->next_job + i, page_cache, scale);
492 #define FIRST_VISABLE_PREV(pixbuf_cache) \
493 (MAX (0, pixbuf_cache->preload_cache_size + 1 - pixbuf_cache->start_page))
496 get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base)
498 if (GTK_WIDGET_HAS_FOCUS (widget)) {
499 *text = &widget->style->text [GTK_STATE_SELECTED];
500 *base = &widget->style->base [GTK_STATE_SELECTED];
502 *text = &widget->style->text [GTK_STATE_ACTIVE];
503 *base = &widget->style->base [GTK_STATE_ACTIVE];
508 add_job_if_needed (EvPixbufCache *pixbuf_cache,
509 CacheJobInfo *job_info,
510 EvPageCache *page_cache,
514 EvJobPriority priority)
516 gboolean include_links = FALSE;
517 gboolean include_text = FALSE;
518 gboolean include_selection = FALSE;
520 GdkColor *text, *base;
525 ev_page_cache_get_size (page_cache, page, rotation,
526 scale, &width, &height);
528 if (job_info->pixbuf &&
529 gdk_pixbuf_get_width (job_info->pixbuf) == width &&
530 gdk_pixbuf_get_height (job_info->pixbuf) == height)
533 /* make a new job now */
534 if (job_info->rc == NULL) {
535 job_info->rc = ev_render_context_new (rotation, page, scale);
537 ev_render_context_set_rotation (job_info->rc, rotation);
538 ev_render_context_set_page (job_info->rc, page);
539 ev_render_context_set_scale (job_info->rc, scale);
542 /* Figure out what else we need for this job */
543 if (job_info->link_mapping == NULL)
544 include_links = TRUE;
545 if (job_info->text_mapping == NULL)
547 if (new_selection_pixbuf_needed (pixbuf_cache, job_info, page, scale)) {
548 include_selection = TRUE;
551 gtk_widget_ensure_style (pixbuf_cache->view);
553 get_selection_colors (pixbuf_cache->view, &text, &base);
555 job_info->job = ev_job_render_new (pixbuf_cache->document,
558 &(job_info->new_points),
563 ev_job_queue_add_job (job_info->job, priority);
564 g_signal_connect (job_info->job, "finished", G_CALLBACK (job_finished_cb), pixbuf_cache);
569 ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache,
573 EvPageCache *page_cache;
574 CacheJobInfo *job_info;
578 page_cache = ev_page_cache_get (pixbuf_cache->document);
580 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
581 job_info = (pixbuf_cache->job_list + i);
582 page = pixbuf_cache->start_page + i;
584 add_job_if_needed (pixbuf_cache, job_info,
585 page_cache, page, rotation, scale,
586 EV_JOB_PRIORITY_HIGH);
589 for (i = FIRST_VISABLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) {
590 job_info = (pixbuf_cache->prev_job + i);
591 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i;
593 add_job_if_needed (pixbuf_cache, job_info,
594 page_cache, page, rotation, scale,
595 EV_JOB_PRIORITY_LOW);
598 for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache, page_cache); i++) {
599 job_info = (pixbuf_cache->next_job + i);
600 page = pixbuf_cache->end_page + 1 + i;
602 add_job_if_needed (pixbuf_cache, job_info,
603 page_cache, page, rotation, scale,
604 EV_JOB_PRIORITY_LOW);
610 ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
615 GList *selection_list)
617 EvPageCache *page_cache;
619 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
621 page_cache = ev_page_cache_get (pixbuf_cache->document);
623 g_return_if_fail (start_page >= 0 && start_page < ev_page_cache_get_n_pages (page_cache));
624 g_return_if_fail (end_page >= 0 && end_page < ev_page_cache_get_n_pages (page_cache));
625 g_return_if_fail (end_page >= start_page);
627 /* First, resize the page_range as needed. We cull old pages
629 ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page);
631 /* Then, we update the current jobs to see if any of them are the wrong
632 * size, we remove them if we need to. */
633 ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale);
635 /* Next, we update the target selection for our pages */
636 ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list);
638 /* Finally, we add the new jobs for all the sizes that don't have a
640 ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale);
644 ev_pixbuf_cache_get_pixbuf (EvPixbufCache *pixbuf_cache,
647 CacheJobInfo *job_info;
649 job_info = find_job_cache (pixbuf_cache, page);
650 if (job_info == NULL)
653 /* We don't need to wait for the idle to handle the callback */
655 EV_JOB (job_info->job)->finished) {
656 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
659 return job_info->pixbuf;
663 ev_pixbuf_cache_get_link_mapping (EvPixbufCache *pixbuf_cache,
666 CacheJobInfo *job_info;
668 job_info = find_job_cache (pixbuf_cache, page);
669 if (job_info == NULL)
672 /* We don't need to wait for the idle to handle the callback */
674 EV_JOB (job_info->job)->finished) {
675 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
678 return job_info->link_mapping;
682 new_selection_pixbuf_needed (EvPixbufCache *pixbuf_cache,
683 CacheJobInfo *job_info,
687 EvPageCache *page_cache;
690 if (job_info->selection) {
691 page_cache = ev_page_cache_get (pixbuf_cache->document);
692 ev_page_cache_get_size (page_cache, page, job_info->rc->rotation,
693 scale, &width, &height);
695 if (width != gdk_pixbuf_get_width (job_info->selection) ||
696 height != gdk_pixbuf_get_height (job_info->selection))
699 if (job_info->new_points.x1 >= 0)
706 clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
707 CacheJobInfo *job_info,
711 if (new_selection_pixbuf_needed (pixbuf_cache, job_info, page, scale)) {
712 if (job_info->selection)
713 g_object_unref (job_info->selection);
714 job_info->selection = NULL;
715 job_info->selection_points.x1 = -1;
720 ev_pixbuf_cache_get_text_mapping (EvPixbufCache *pixbuf_cache,
723 CacheJobInfo *job_info;
725 job_info = find_job_cache (pixbuf_cache, page);
726 if (job_info == NULL)
729 /* We don't need to wait for the idle to handle the callback */
731 EV_JOB (job_info->job)->finished) {
732 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
735 return job_info->text_mapping;
738 /* Clears the cache of jobs and pixbufs.
741 ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache)
745 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
746 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
747 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
750 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
751 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
757 ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache)
761 /* FIXME: doesn't update running jobs. */
762 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
763 CacheJobInfo *job_info;
765 job_info = pixbuf_cache->prev_job + i;
766 if (job_info->selection) {
767 g_object_unref (G_OBJECT (job_info->selection));
768 job_info->selection = NULL;
771 job_info = pixbuf_cache->next_job + i;
772 if (job_info->selection) {
773 g_object_unref (G_OBJECT (job_info->selection));
774 job_info->selection = NULL;
778 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
779 CacheJobInfo *job_info;
781 job_info = pixbuf_cache->job_list + i;
782 if (job_info->selection) {
783 g_object_unref (G_OBJECT (job_info->selection));
784 job_info->selection = NULL;
790 ev_pixbuf_cache_get_selection_pixbuf (EvPixbufCache *pixbuf_cache,
795 CacheJobInfo *job_info;
797 /* the document does not implement the selection interface */
798 if (!EV_IS_SELECTION (pixbuf_cache->document))
801 job_info = find_job_cache (pixbuf_cache, page);
802 if (job_info == NULL)
805 /* No selection on this page */
806 if (job_info->new_points.x1 < 0)
810 g_assert (job_info->rc);
811 ev_render_context_set_scale (job_info->rc, scale);
813 /* If we have a running job, we just return what we have under the
814 * assumption that it'll be updated later and we can scale it as need
816 if (job_info->job && EV_JOB_RENDER (job_info->job)->include_selection)
817 return job_info->selection;
819 /* Now, lets see if we need to resize the image. If we do, we clear the
821 clear_selection_if_needed (pixbuf_cache, job_info, page, scale);
823 /* Finally, we see if the two scales are the same, and get a new pixbuf
824 * if needed. We do this synchronously for now. At some point, we
825 * _should_ be able to get rid of the doc_mutex, so the synchronicity
826 * doesn't kill us. Rendering a few glyphs should really be fast.
828 if (ev_rect_cmp (&(job_info->new_points), &(job_info->selection_points))) {
829 EvRectangle *old_points;
830 GdkColor *text, *base;
832 /* we need to get a new selection pixbuf */
833 ev_document_doc_mutex_lock ();
834 if (job_info->selection_points.x1 < 0) {
835 g_assert (job_info->selection == NULL);
838 g_assert (job_info->selection != NULL);
839 old_points = &(job_info->selection_points);
842 if (job_info->selection_region)
843 gdk_region_destroy (job_info->selection_region);
844 job_info->selection_region =
845 ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document),
847 &(job_info->new_points));
849 gtk_widget_ensure_style (pixbuf_cache->view);
851 get_selection_colors (pixbuf_cache->view, &text, &base);
853 ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
854 job_info->rc, &(job_info->selection),
855 &(job_info->new_points),
858 job_info->selection_points = job_info->new_points;
859 ev_document_doc_mutex_unlock ();
862 *region = job_info->selection_region;
863 return job_info->selection;
867 update_job_selection (CacheJobInfo *job_info,
868 EvViewSelection *selection)
870 if (job_info->selection == NULL)
871 job_info->selection_points.x1 = -1;
872 job_info->new_points = selection->rect;
876 clear_job_selection (CacheJobInfo *job_info)
878 job_info->selection_points.x1 = -1;
879 job_info->new_points.x1 = -1;
881 if (job_info->selection) {
882 g_object_unref (job_info->selection);
883 job_info->selection = NULL;
887 /* This function will reset the selection on pages that no longer have them, and
888 * will update the target_selection on those that need it. It will _not_ free
889 * the previous selection_list -- that's up to caller to do.
892 ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
893 GList *selection_list)
895 EvPageCache *page_cache;
896 EvViewSelection *selection;
897 GList *list = selection_list;
901 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
903 page_cache = ev_page_cache_get (pixbuf_cache->document);
905 /* We check each area to see what needs updating, and what needs freeing; */
906 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
907 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
915 if (((EvViewSelection *)list->data)->page == page) {
916 selection = list->data;
918 } else if (((EvViewSelection *)list->data)->page > page)
924 update_job_selection (pixbuf_cache->prev_job + i, selection);
926 clear_job_selection (pixbuf_cache->prev_job + i);
930 page = pixbuf_cache->start_page;
931 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
934 if (((EvViewSelection *)list->data)->page == page) {
935 selection = list->data;
937 } else if (((EvViewSelection *)list->data)->page > page)
943 update_job_selection (pixbuf_cache->job_list + i, selection);
945 clear_job_selection (pixbuf_cache->job_list + i);
949 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
950 if (page >= ev_page_cache_get_n_pages (page_cache))
955 if (((EvViewSelection *)list->data)->page == page) {
956 selection = list->data;
958 } else if (((EvViewSelection *)list->data)->page > page)
964 update_job_selection (pixbuf_cache->next_job + i, selection);
966 clear_job_selection (pixbuf_cache->next_job + i);
972 /* Returns what the pixbuf cache thinks is */
975 ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
977 EvPageCache *page_cache;
978 EvViewSelection *selection;
979 GList *retval = NULL;
983 g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
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++) {
995 if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) {
996 selection = g_new0 (EvViewSelection, 1);
997 selection->page = page;
998 selection->rect = pixbuf_cache->prev_job[i].selection_points;
999 if (pixbuf_cache->prev_job[i].selection_region)
1000 selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region);
1001 retval = g_list_append (retval, selection);
1007 page = pixbuf_cache->start_page;
1008 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1009 if (pixbuf_cache->job_list[i].selection_points.x1 != -1) {
1010 selection = g_new0 (EvViewSelection, 1);
1011 selection->page = page;
1012 selection->rect = pixbuf_cache->job_list[i].selection_points;
1013 if (pixbuf_cache->job_list[i].selection_region)
1014 selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region);
1015 retval = g_list_append (retval, selection);
1021 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1022 if (page >= ev_page_cache_get_n_pages (page_cache))
1025 if (pixbuf_cache->next_job[i].selection_points.x1 != -1) {
1026 selection = g_new0 (EvViewSelection, 1);
1027 selection->page = page;
1028 selection->rect = pixbuf_cache->next_job[i].selection_points;
1029 if (pixbuf_cache->next_job[i].selection_region)
1030 selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region);
1031 retval = g_list_append (retval, selection);