2 #include "ev-pixbuf-cache.h"
3 #include "ev-job-scheduler.h"
4 #include "ev-mapping.h"
5 #include "ev-document-forms.h"
6 #include "ev-document-images.h"
7 #include "ev-document-annotations.h"
8 #include "ev-view-private.h"
10 typedef struct _CacheJobInfo
15 /* Region of the page that needs to be drawn */
18 /* Data we get from rendering */
19 cairo_surface_t *surface;
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;
26 EvSelectionStyle selection_style;
29 cairo_surface_t *selection;
30 GdkRegion *selection_region;
37 /* We keep a link to our containing view just for style information. */
40 EvDocumentModel *model;
43 gboolean inverted_colors;
47 /* preload_cache_size is the number of pages prior to the current
48 * visible area that we cache. It's normally 1, but could be 2 in the
51 int preload_cache_size;
52 CacheJobInfo *prev_job;
53 CacheJobInfo *job_list;
54 CacheJobInfo *next_job;
57 struct _EvPixbufCacheClass
59 GObjectClass parent_class;
61 void (* job_finished) (EvPixbufCache *pixbuf_cache);
71 static guint signals[N_SIGNALS] = {0, };
73 static void ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache);
74 static void ev_pixbuf_cache_class_init (EvPixbufCacheClass *pixbuf_cache);
75 static void ev_pixbuf_cache_finalize (GObject *object);
76 static void ev_pixbuf_cache_dispose (GObject *object);
77 static void job_finished_cb (EvJob *job,
78 EvPixbufCache *pixbuf_cache);
79 static CacheJobInfo *find_job_cache (EvPixbufCache *pixbuf_cache,
81 static gboolean new_selection_surface_needed(EvPixbufCache *pixbuf_cache,
82 CacheJobInfo *job_info,
87 /* These are used for iterating through the prev and next arrays */
88 #define FIRST_VISIBLE_PREV(pixbuf_cache) \
89 (MAX (0, pixbuf_cache->preload_cache_size - pixbuf_cache->start_page))
90 #define VISIBLE_NEXT_LEN(pixbuf_cache) \
91 (MIN(pixbuf_cache->preload_cache_size, ev_document_get_n_pages (pixbuf_cache->document) - (1 + pixbuf_cache->end_page)))
92 #define PAGE_CACHE_LEN(pixbuf_cache) \
93 ((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1)
95 #define MAX_PRELOADED_PAGES 3
97 G_DEFINE_TYPE (EvPixbufCache, ev_pixbuf_cache, G_TYPE_OBJECT)
100 ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache)
102 pixbuf_cache->start_page = -1;
103 pixbuf_cache->end_page = -1;
107 ev_pixbuf_cache_class_init (EvPixbufCacheClass *class)
109 GObjectClass *object_class;
111 object_class = G_OBJECT_CLASS (class);
113 object_class->finalize = ev_pixbuf_cache_finalize;
114 object_class->dispose = ev_pixbuf_cache_dispose;
116 signals[JOB_FINISHED] =
117 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__POINTER,
128 ev_pixbuf_cache_finalize (GObject *object)
130 EvPixbufCache *pixbuf_cache;
132 pixbuf_cache = EV_PIXBUF_CACHE (object);
134 g_free (pixbuf_cache->prev_job);
135 g_free (pixbuf_cache->job_list);
136 g_free (pixbuf_cache->next_job);
138 g_object_unref (pixbuf_cache->model);
140 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->finalize (object);
144 dispose_cache_job_info (CacheJobInfo *job_info,
147 if (job_info == NULL)
151 g_signal_handlers_disconnect_by_func (job_info->job,
152 G_CALLBACK (job_finished_cb),
154 ev_job_cancel (job_info->job);
155 g_object_unref (job_info->job);
156 job_info->job = NULL;
158 if (job_info->surface) {
159 cairo_surface_destroy (job_info->surface);
160 job_info->surface = NULL;
162 if (job_info->region) {
163 gdk_region_destroy (job_info->region);
164 job_info->region = NULL;
166 if (job_info->selection) {
167 cairo_surface_destroy (job_info->selection);
168 job_info->selection = NULL;
170 if (job_info->selection_region) {
171 gdk_region_destroy (job_info->selection_region);
172 job_info->selection_region = NULL;
175 job_info->points_set = FALSE;
179 ev_pixbuf_cache_dispose (GObject *object)
181 EvPixbufCache *pixbuf_cache;
184 pixbuf_cache = EV_PIXBUF_CACHE (object);
186 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
187 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
188 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
191 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
192 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
195 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->dispose (object);
200 ev_pixbuf_cache_new (GtkWidget *view,
201 EvDocumentModel *model,
204 EvPixbufCache *pixbuf_cache;
206 pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL);
207 /* This is a backlink, so we don't ref this */
208 pixbuf_cache->view = view;
209 pixbuf_cache->model = g_object_ref (model);
210 pixbuf_cache->document = ev_document_model_get_document (model);
211 pixbuf_cache->max_size = max_size;
217 ev_pixbuf_cache_set_max_size (EvPixbufCache *pixbuf_cache,
220 if (pixbuf_cache->max_size == max_size)
223 if (pixbuf_cache->max_size > max_size)
224 ev_pixbuf_cache_clear (pixbuf_cache);
225 pixbuf_cache->max_size = max_size;
229 copy_job_to_job_info (EvJobRender *job_render,
230 CacheJobInfo *job_info,
231 EvPixbufCache *pixbuf_cache)
233 if (job_info->surface) {
234 cairo_surface_destroy (job_info->surface);
236 job_info->surface = cairo_surface_reference (job_render->surface);
237 if (pixbuf_cache->inverted_colors) {
238 ev_document_misc_invert_surface (job_info->surface);
241 job_info->points_set = FALSE;
242 if (job_render->include_selection) {
243 if (job_info->selection) {
244 cairo_surface_destroy (job_info->selection);
245 job_info->selection = NULL;
247 if (job_info->selection_region) {
248 gdk_region_destroy (job_info->selection_region);
249 job_info->selection_region = NULL;
252 job_info->selection_points = job_render->selection_points;
253 job_info->selection_region = gdk_region_copy (job_render->selection_region);
254 job_info->selection = cairo_surface_reference (job_render->selection);
255 g_assert (job_info->selection_points.x1 >= 0);
256 job_info->points_set = TRUE;
260 g_signal_handlers_disconnect_by_func (job_info->job,
261 G_CALLBACK (job_finished_cb),
263 ev_job_cancel (job_info->job);
264 g_object_unref (job_info->job);
265 job_info->job = NULL;
268 job_info->page_ready = TRUE;
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);
287 copy_job_to_job_info (job_render, job_info, pixbuf_cache);
288 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
291 /* This checks a job to see if the job would generate the right sized pixbuf
292 * given a scale. If it won't, it removes the job and clears it to NULL.
295 check_job_size_and_unref (EvPixbufCache *pixbuf_cache,
296 CacheJobInfo *job_info,
303 if (job_info->job == NULL)
306 _get_page_size_for_scale_and_rotation (job_info->job->document,
307 EV_JOB_RENDER (job_info->job)->page,
309 EV_JOB_RENDER (job_info->job)->rotation,
311 if (width == EV_JOB_RENDER (job_info->job)->target_width &&
312 height == EV_JOB_RENDER (job_info->job)->target_height)
315 g_signal_handlers_disconnect_by_func (job_info->job,
316 G_CALLBACK (job_finished_cb),
318 ev_job_cancel (job_info->job);
319 g_object_unref (job_info->job);
320 job_info->job = NULL;
323 /* Do all function that copies a job from an older cache to it's position in the
324 * new cache. It clears the old job if it doesn't have a place.
327 move_one_job (CacheJobInfo *job_info,
328 EvPixbufCache *pixbuf_cache,
330 CacheJobInfo *new_job_list,
331 CacheJobInfo *new_prev_job,
332 CacheJobInfo *new_next_job,
333 int new_preload_cache_size,
338 CacheJobInfo *target_page = NULL;
342 if (page < (start_page - new_preload_cache_size) ||
343 page > (end_page + new_preload_cache_size)) {
344 dispose_cache_job_info (job_info, pixbuf_cache);
348 /* find the target page to copy it over to. */
349 if (page < start_page) {
350 page_offset = (page - (start_page - new_preload_cache_size));
352 g_assert (page_offset >= 0 &&
353 page_offset < new_preload_cache_size);
354 target_page = new_prev_job + page_offset;
355 new_priority = EV_JOB_PRIORITY_LOW;
356 } else if (page > end_page) {
357 page_offset = (page - (end_page + 1));
359 g_assert (page_offset >= 0 &&
360 page_offset < new_preload_cache_size);
361 target_page = new_next_job + page_offset;
362 new_priority = EV_JOB_PRIORITY_LOW;
364 page_offset = page - start_page;
365 g_assert (page_offset >= 0 &&
366 page_offset <= ((end_page - start_page) + 1));
367 new_priority = EV_JOB_PRIORITY_URGENT;
368 target_page = new_job_list + page_offset;
371 *target_page = *job_info;
372 job_info->job = NULL;
373 job_info->region = NULL;
374 job_info->surface = NULL;
376 if (new_priority != priority && target_page->job) {
377 ev_job_scheduler_update_job (target_page->job, new_priority);
382 ev_pixbuf_cache_get_page_size (EvPixbufCache *pixbuf_cache,
389 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
390 page_index, scale, rotation,
392 return height * cairo_format_stride_for_width (CAIRO_FORMAT_RGB24, width);
396 ev_pixbuf_cache_get_preload_size (EvPixbufCache *pixbuf_cache,
402 gsize range_size = 0;
403 gint new_preload_cache_size = 0;
405 guint n_pages = ev_document_get_n_pages (pixbuf_cache->document);
407 /* Get the size of the current range */
408 for (i = start_page; i <= end_page; i++) {
409 range_size += ev_pixbuf_cache_get_page_size (pixbuf_cache, i, scale, rotation);
412 if (range_size >= pixbuf_cache->max_size)
413 return new_preload_cache_size;
416 while (((start_page - i > 0) || (end_page + i < n_pages)) &&
417 new_preload_cache_size < MAX_PRELOADED_PAGES) {
419 gboolean updated = FALSE;
421 if (end_page + i < n_pages) {
422 page_size = ev_pixbuf_cache_get_page_size (pixbuf_cache, end_page + i,
424 if (page_size + range_size <= pixbuf_cache->max_size) {
425 range_size += page_size;
426 new_preload_cache_size++;
433 if (start_page - i > 0) {
434 page_size = ev_pixbuf_cache_get_page_size (pixbuf_cache, start_page - i,
436 if (page_size + range_size <= pixbuf_cache->max_size) {
437 range_size += page_size;
439 new_preload_cache_size++;
447 return new_preload_cache_size;
451 ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache,
455 CacheJobInfo *new_job_list;
456 CacheJobInfo *new_prev_job = NULL;
457 CacheJobInfo *new_next_job = NULL;
458 gint new_preload_cache_size;
460 gdouble scale = ev_document_model_get_scale (pixbuf_cache->model);
461 gint rotation = ev_document_model_get_rotation (pixbuf_cache->model);
463 new_preload_cache_size = ev_pixbuf_cache_get_preload_size (pixbuf_cache,
468 if (pixbuf_cache->start_page == start_page &&
469 pixbuf_cache->end_page == end_page &&
470 pixbuf_cache->preload_cache_size == new_preload_cache_size)
473 new_job_list = g_new0 (CacheJobInfo, (end_page - start_page) + 1);
474 if (new_preload_cache_size > 0) {
475 new_prev_job = g_new0 (CacheJobInfo, new_preload_cache_size);
476 new_next_job = g_new0 (CacheJobInfo, new_preload_cache_size);
479 /* We go through each job in the old cache and either clear it or move
480 * it to a new location. */
482 /* Start with the prev cache. */
483 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
484 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
486 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
488 move_one_job (pixbuf_cache->prev_job + i,
490 new_job_list, new_prev_job, new_next_job,
491 new_preload_cache_size,
492 start_page, end_page, EV_JOB_PRIORITY_LOW);
497 page = pixbuf_cache->start_page;
498 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache) && page >= 0; i++) {
499 move_one_job (pixbuf_cache->job_list + i,
501 new_job_list, new_prev_job, new_next_job,
502 new_preload_cache_size,
503 start_page, end_page, EV_JOB_PRIORITY_URGENT);
507 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
508 if (page >= ev_document_get_n_pages (pixbuf_cache->document)) {
509 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
511 move_one_job (pixbuf_cache->next_job + i,
513 new_job_list, new_prev_job, new_next_job,
514 new_preload_cache_size,
515 start_page, end_page, EV_JOB_PRIORITY_LOW);
520 g_free (pixbuf_cache->job_list);
521 g_free (pixbuf_cache->prev_job);
522 g_free (pixbuf_cache->next_job);
524 pixbuf_cache->preload_cache_size = new_preload_cache_size;
526 pixbuf_cache->job_list = new_job_list;
527 pixbuf_cache->prev_job = new_prev_job;
528 pixbuf_cache->next_job = new_next_job;
530 pixbuf_cache->start_page = start_page;
531 pixbuf_cache->end_page = end_page;
534 static CacheJobInfo *
535 find_job_cache (EvPixbufCache *pixbuf_cache,
540 if (page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size) ||
541 page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))
544 if (page < pixbuf_cache->start_page) {
545 page_offset = (page - (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size));
547 g_assert (page_offset >= 0 &&
548 page_offset < pixbuf_cache->preload_cache_size);
549 return pixbuf_cache->prev_job + page_offset;
552 if (page > pixbuf_cache->end_page) {
553 page_offset = (page - (pixbuf_cache->end_page + 1));
555 g_assert (page_offset >= 0 &&
556 page_offset < pixbuf_cache->preload_cache_size);
557 return pixbuf_cache->next_job + page_offset;
560 page_offset = page - pixbuf_cache->start_page;
561 g_assert (page_offset >= 0 &&
562 page_offset <= PAGE_CACHE_LEN(pixbuf_cache));
563 return pixbuf_cache->job_list + page_offset;
567 ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache,
572 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
573 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->job_list + i, scale);
576 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
577 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->prev_job + i, scale);
578 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->next_job + i, scale);
583 get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base)
585 GtkStyle *style = gtk_widget_get_style (widget);
587 if (gtk_widget_has_focus (widget)) {
588 *text = &style->text [GTK_STATE_SELECTED];
589 *base = &style->base [GTK_STATE_SELECTED];
591 *text = &style->text [GTK_STATE_ACTIVE];
592 *base = &style->base [GTK_STATE_ACTIVE];
597 add_job (EvPixbufCache *pixbuf_cache,
598 CacheJobInfo *job_info,
605 EvJobPriority priority)
607 job_info->page_ready = FALSE;
609 if (job_info->region)
610 gdk_region_destroy (job_info->region);
611 job_info->region = region ? gdk_region_copy (region) : NULL;
613 job_info->job = ev_job_render_new (pixbuf_cache->document,
614 page, rotation, scale,
617 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
618 GdkColor *text, *base;
620 gtk_widget_ensure_style (pixbuf_cache->view);
621 get_selection_colors (pixbuf_cache->view, &text, &base);
622 ev_job_render_set_selection_info (EV_JOB_RENDER (job_info->job),
623 &(job_info->target_points),
624 job_info->selection_style,
628 g_signal_connect (job_info->job, "finished",
629 G_CALLBACK (job_finished_cb),
631 ev_job_scheduler_push_job (job_info->job, priority);
635 add_job_if_needed (EvPixbufCache *pixbuf_cache,
636 CacheJobInfo *job_info,
640 EvJobPriority priority)
647 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
648 page, scale, rotation,
651 if (job_info->surface &&
652 cairo_image_surface_get_width (job_info->surface) == width &&
653 cairo_image_surface_get_height (job_info->surface) == height)
656 /* Free old surfaces for non visible pages */
657 if (priority == EV_JOB_PRIORITY_LOW) {
658 if (job_info->surface) {
659 cairo_surface_destroy (job_info->surface);
660 job_info->surface = NULL;
663 if (job_info->selection) {
664 cairo_surface_destroy (job_info->selection);
665 job_info->selection = NULL;
669 add_job (pixbuf_cache, job_info, NULL,
670 width, height, page, rotation, scale,
675 ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache,
679 CacheJobInfo *job_info;
683 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
684 job_info = (pixbuf_cache->job_list + i);
685 page = pixbuf_cache->start_page + i;
687 add_job_if_needed (pixbuf_cache, job_info,
688 page, rotation, scale,
689 EV_JOB_PRIORITY_URGENT);
692 for (i = FIRST_VISIBLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) {
693 job_info = (pixbuf_cache->prev_job + i);
694 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i;
696 add_job_if_needed (pixbuf_cache, job_info,
697 page, rotation, scale,
698 EV_JOB_PRIORITY_LOW);
701 for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache); i++) {
702 job_info = (pixbuf_cache->next_job + i);
703 page = pixbuf_cache->end_page + 1 + i;
705 add_job_if_needed (pixbuf_cache, job_info,
706 page, rotation, scale,
707 EV_JOB_PRIORITY_LOW);
713 ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
718 GList *selection_list)
720 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
722 g_return_if_fail (start_page >= 0 && start_page < ev_document_get_n_pages (pixbuf_cache->document));
723 g_return_if_fail (end_page >= 0 && end_page < ev_document_get_n_pages (pixbuf_cache->document));
724 g_return_if_fail (end_page >= start_page);
726 /* First, resize the page_range as needed. We cull old pages
728 ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page);
730 /* Then, we update the current jobs to see if any of them are the wrong
731 * size, we remove them if we need to. */
732 ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale);
734 /* Next, we update the target selection for our pages */
735 ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list);
737 /* Finally, we add the new jobs for all the sizes that don't have a
739 ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale);
743 ev_pixbuf_cache_set_inverted_colors (EvPixbufCache *pixbuf_cache,
744 gboolean inverted_colors)
748 if (pixbuf_cache->inverted_colors == inverted_colors)
751 pixbuf_cache->inverted_colors = inverted_colors;
753 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
754 CacheJobInfo *job_info;
756 job_info = pixbuf_cache->prev_job + i;
757 if (job_info->surface)
758 ev_document_misc_invert_surface (job_info->surface);
760 job_info = pixbuf_cache->next_job + i;
761 if (job_info->surface)
762 ev_document_misc_invert_surface (job_info->surface);
765 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
766 CacheJobInfo *job_info;
768 job_info = pixbuf_cache->job_list + i;
769 if (job_info->surface)
770 ev_document_misc_invert_surface (job_info->surface);
775 ev_pixbuf_cache_get_surface (EvPixbufCache *pixbuf_cache,
778 CacheJobInfo *job_info;
780 job_info = find_job_cache (pixbuf_cache, page);
781 if (job_info == NULL)
784 if (job_info->page_ready)
785 return job_info->surface;
787 /* We don't need to wait for the idle to handle the callback */
789 EV_JOB_RENDER (job_info->job)->page_ready) {
790 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
791 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
794 return job_info->surface;
798 new_selection_surface_needed (EvPixbufCache *pixbuf_cache,
799 CacheJobInfo *job_info,
803 if (job_info->selection) {
805 gint selection_width, selection_height;
807 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
811 selection_width = cairo_image_surface_get_width (job_info->selection);
812 selection_height = cairo_image_surface_get_height (job_info->selection);
814 if (width != selection_width || height != selection_height)
817 if (job_info->points_set)
825 clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
826 CacheJobInfo *job_info,
830 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
831 if (job_info->selection)
832 cairo_surface_destroy (job_info->selection);
833 job_info->selection = NULL;
834 job_info->selection_points.x1 = -1;
838 /* Clears the cache of jobs and pixbufs.
841 ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache)
845 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
846 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
847 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
850 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
851 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
857 ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache)
861 /* FIXME: doesn't update running jobs. */
862 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
863 CacheJobInfo *job_info;
865 job_info = pixbuf_cache->prev_job + i;
866 if (job_info->selection) {
867 cairo_surface_destroy (job_info->selection);
868 job_info->selection = NULL;
871 job_info = pixbuf_cache->next_job + i;
872 if (job_info->selection) {
873 cairo_surface_destroy (job_info->selection);
874 job_info->selection = NULL;
878 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
879 CacheJobInfo *job_info;
881 job_info = pixbuf_cache->job_list + i;
882 if (job_info->selection) {
883 cairo_surface_destroy (job_info->selection);
884 job_info->selection = NULL;
890 ev_pixbuf_cache_get_selection_surface (EvPixbufCache *pixbuf_cache,
895 CacheJobInfo *job_info;
897 /* the document does not implement the selection interface */
898 if (!EV_IS_SELECTION (pixbuf_cache->document))
901 job_info = find_job_cache (pixbuf_cache, page);
902 if (job_info == NULL)
905 /* No selection on this page */
906 if (!job_info->points_set)
909 /* If we have a running job, we just return what we have under the
910 * assumption that it'll be updated later and we can scale it as need
912 if (job_info->job && EV_JOB_RENDER (job_info->job)->include_selection)
913 return job_info->selection;
915 /* Now, lets see if we need to resize the image. If we do, we clear the
917 clear_selection_if_needed (pixbuf_cache, job_info, page, scale);
919 /* Finally, we see if the two scales are the same, and get a new pixbuf
920 * if needed. We do this synchronously for now. At some point, we
921 * _should_ be able to get rid of the doc_mutex, so the synchronicity
922 * doesn't kill us. Rendering a few glyphs should really be fast.
924 if (ev_rect_cmp (&(job_info->target_points), &(job_info->selection_points))) {
925 EvRectangle *old_points;
926 GdkColor *text, *base;
930 /* we need to get a new selection pixbuf */
931 ev_document_doc_mutex_lock ();
932 if (job_info->selection_points.x1 < 0) {
933 g_assert (job_info->selection == NULL);
936 g_assert (job_info->selection != NULL);
937 old_points = &(job_info->selection_points);
940 ev_page = ev_document_get_page (pixbuf_cache->document, page);
941 rc = ev_render_context_new (ev_page, 0, scale);
942 g_object_unref (ev_page);
944 if (job_info->selection_region)
945 gdk_region_destroy (job_info->selection_region);
946 job_info->selection_region =
947 ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document),
948 rc, job_info->selection_style,
949 &(job_info->target_points));
951 gtk_widget_ensure_style (pixbuf_cache->view);
953 get_selection_colors (pixbuf_cache->view, &text, &base);
955 ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
956 rc, &(job_info->selection),
957 &(job_info->target_points),
959 job_info->selection_style,
961 job_info->selection_points = job_info->target_points;
963 ev_document_doc_mutex_unlock ();
966 *region = job_info->selection_region;
967 return job_info->selection;
971 update_job_selection (CacheJobInfo *job_info,
972 EvViewSelection *selection)
974 job_info->points_set = TRUE;
975 job_info->target_points = selection->rect;
976 job_info->selection_style = selection->style;
980 clear_job_selection (CacheJobInfo *job_info)
982 job_info->points_set = FALSE;
983 job_info->selection_points.x1 = -1;
985 if (job_info->selection) {
986 cairo_surface_destroy (job_info->selection);
987 job_info->selection = NULL;
991 /* This function will reset the selection on pages that no longer have them, and
992 * will update the target_selection on those that need it. It will _not_ free
993 * the previous selection_list -- that's up to caller to do.
996 ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
997 GList *selection_list)
999 EvViewSelection *selection;
1000 GList *list = selection_list;
1004 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
1006 if (!EV_IS_SELECTION (pixbuf_cache->document))
1009 /* We check each area to see what needs updating, and what needs freeing; */
1010 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1011 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1019 if (((EvViewSelection *)list->data)->page == page) {
1020 selection = list->data;
1022 } else if (((EvViewSelection *)list->data)->page > page)
1028 update_job_selection (pixbuf_cache->prev_job + i, selection);
1030 clear_job_selection (pixbuf_cache->prev_job + i);
1034 page = pixbuf_cache->start_page;
1035 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1038 if (((EvViewSelection *)list->data)->page == page) {
1039 selection = list->data;
1041 } else if (((EvViewSelection *)list->data)->page > page)
1047 update_job_selection (pixbuf_cache->job_list + i, selection);
1049 clear_job_selection (pixbuf_cache->job_list + i);
1053 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1054 if (page >= ev_document_get_n_pages (pixbuf_cache->document))
1059 if (((EvViewSelection *)list->data)->page == page) {
1060 selection = list->data;
1062 } else if (((EvViewSelection *)list->data)->page > page)
1068 update_job_selection (pixbuf_cache->next_job + i, selection);
1070 clear_job_selection (pixbuf_cache->next_job + i);
1076 /* Returns what the pixbuf cache thinks is */
1079 ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
1081 EvViewSelection *selection;
1082 GList *retval = NULL;
1086 g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
1088 /* We check each area to see what needs updating, and what needs freeing; */
1089 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1090 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1096 if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) {
1097 selection = g_new0 (EvViewSelection, 1);
1098 selection->page = page;
1099 selection->rect = pixbuf_cache->prev_job[i].selection_points;
1100 if (pixbuf_cache->prev_job[i].selection_region)
1101 selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region);
1102 retval = g_list_append (retval, selection);
1108 page = pixbuf_cache->start_page;
1109 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1110 if (pixbuf_cache->job_list[i].selection_points.x1 != -1) {
1111 selection = g_new0 (EvViewSelection, 1);
1112 selection->page = page;
1113 selection->rect = pixbuf_cache->job_list[i].selection_points;
1114 if (pixbuf_cache->job_list[i].selection_region)
1115 selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region);
1116 retval = g_list_append (retval, selection);
1122 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1123 if (page >= ev_document_get_n_pages (pixbuf_cache->document))
1126 if (pixbuf_cache->next_job[i].selection_points.x1 != -1) {
1127 selection = g_new0 (EvViewSelection, 1);
1128 selection->page = page;
1129 selection->rect = pixbuf_cache->next_job[i].selection_points;
1130 if (pixbuf_cache->next_job[i].selection_region)
1131 selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region);
1132 retval = g_list_append (retval, selection);
1142 ev_pixbuf_cache_reload_page (EvPixbufCache *pixbuf_cache,
1148 CacheJobInfo *job_info;
1151 job_info = find_job_cache (pixbuf_cache, page);
1152 if (job_info == NULL)
1155 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
1156 page, scale, rotation,
1158 add_job (pixbuf_cache, job_info, region,
1159 width, height, page, rotation, scale,
1160 EV_JOB_PRIORITY_URGENT);