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;
54 CacheJobInfo *prev_job;
55 CacheJobInfo *job_list;
56 CacheJobInfo *next_job;
59 struct _EvPixbufCacheClass
61 GObjectClass parent_class;
63 void (* job_finished) (EvPixbufCache *pixbuf_cache);
73 static guint signals[N_SIGNALS] = {0, };
75 static void ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache);
76 static void ev_pixbuf_cache_class_init (EvPixbufCacheClass *pixbuf_cache);
77 static void ev_pixbuf_cache_finalize (GObject *object);
78 static void ev_pixbuf_cache_dispose (GObject *object);
79 static void job_finished_cb (EvJob *job,
80 EvPixbufCache *pixbuf_cache);
81 static CacheJobInfo *find_job_cache (EvPixbufCache *pixbuf_cache,
83 static gboolean new_selection_surface_needed(EvPixbufCache *pixbuf_cache,
84 CacheJobInfo *job_info,
89 /* These are used for iterating through the prev and next arrays */
90 #define FIRST_VISIBLE_PREV(pixbuf_cache) \
91 (MAX (0, pixbuf_cache->preload_cache_size - pixbuf_cache->start_page))
92 #define VISIBLE_NEXT_LEN(pixbuf_cache) \
93 (MIN(pixbuf_cache->preload_cache_size, ev_document_get_n_pages (pixbuf_cache->document) - (1 + pixbuf_cache->end_page)))
94 #define PAGE_CACHE_LEN(pixbuf_cache) \
95 ((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1)
97 #define MAX_PRELOADED_PAGES 3
99 G_DEFINE_TYPE (EvPixbufCache, ev_pixbuf_cache, G_TYPE_OBJECT)
102 ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache)
104 pixbuf_cache->start_page = -1;
105 pixbuf_cache->end_page = -1;
109 ev_pixbuf_cache_class_init (EvPixbufCacheClass *class)
111 GObjectClass *object_class;
113 object_class = G_OBJECT_CLASS (class);
115 object_class->finalize = ev_pixbuf_cache_finalize;
116 object_class->dispose = ev_pixbuf_cache_dispose;
118 signals[JOB_FINISHED] =
119 g_signal_new ("job-finished",
120 G_OBJECT_CLASS_TYPE (object_class),
121 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
122 G_STRUCT_OFFSET (EvPixbufCacheClass, job_finished),
124 g_cclosure_marshal_VOID__POINTER,
130 ev_pixbuf_cache_finalize (GObject *object)
132 EvPixbufCache *pixbuf_cache;
134 pixbuf_cache = EV_PIXBUF_CACHE (object);
136 if (pixbuf_cache->job_list) {
137 g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->job_list_len,
138 pixbuf_cache->job_list);
139 pixbuf_cache->job_list = NULL;
141 if (pixbuf_cache->prev_job) {
142 g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->preload_cache_size,
143 pixbuf_cache->prev_job);
144 pixbuf_cache->prev_job = NULL;
146 if (pixbuf_cache->next_job) {
147 g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->preload_cache_size,
148 pixbuf_cache->next_job);
149 pixbuf_cache->next_job = NULL;
152 g_object_unref (pixbuf_cache->model);
154 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->finalize (object);
158 dispose_cache_job_info (CacheJobInfo *job_info,
161 if (job_info == NULL)
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->selection) {
181 cairo_surface_destroy (job_info->selection);
182 job_info->selection = NULL;
184 if (job_info->selection_region) {
185 gdk_region_destroy (job_info->selection_region);
186 job_info->selection_region = NULL;
189 job_info->points_set = FALSE;
193 ev_pixbuf_cache_dispose (GObject *object)
195 EvPixbufCache *pixbuf_cache;
198 pixbuf_cache = EV_PIXBUF_CACHE (object);
200 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
201 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
202 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
205 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
206 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
209 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->dispose (object);
214 ev_pixbuf_cache_new (GtkWidget *view,
215 EvDocumentModel *model,
218 EvPixbufCache *pixbuf_cache;
220 pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL);
221 /* This is a backlink, so we don't ref this */
222 pixbuf_cache->view = view;
223 pixbuf_cache->model = g_object_ref (model);
224 pixbuf_cache->document = ev_document_model_get_document (model);
225 pixbuf_cache->max_size = max_size;
231 ev_pixbuf_cache_set_max_size (EvPixbufCache *pixbuf_cache,
234 if (pixbuf_cache->max_size == max_size)
237 if (pixbuf_cache->max_size > max_size)
238 ev_pixbuf_cache_clear (pixbuf_cache);
239 pixbuf_cache->max_size = max_size;
243 copy_job_to_job_info (EvJobRender *job_render,
244 CacheJobInfo *job_info,
245 EvPixbufCache *pixbuf_cache)
247 if (job_info->surface) {
248 cairo_surface_destroy (job_info->surface);
250 job_info->surface = cairo_surface_reference (job_render->surface);
251 if (pixbuf_cache->inverted_colors) {
252 ev_document_misc_invert_surface (job_info->surface);
255 job_info->points_set = FALSE;
256 if (job_render->include_selection) {
257 if (job_info->selection) {
258 cairo_surface_destroy (job_info->selection);
259 job_info->selection = NULL;
261 if (job_info->selection_region) {
262 gdk_region_destroy (job_info->selection_region);
263 job_info->selection_region = NULL;
266 job_info->selection_points = job_render->selection_points;
267 job_info->selection_region = gdk_region_copy (job_render->selection_region);
268 job_info->selection = cairo_surface_reference (job_render->selection);
269 g_assert (job_info->selection_points.x1 >= 0);
270 job_info->points_set = TRUE;
274 g_signal_handlers_disconnect_by_func (job_info->job,
275 G_CALLBACK (job_finished_cb),
277 ev_job_cancel (job_info->job);
278 g_object_unref (job_info->job);
279 job_info->job = NULL;
282 job_info->page_ready = TRUE;
286 job_finished_cb (EvJob *job,
287 EvPixbufCache *pixbuf_cache)
289 CacheJobInfo *job_info;
290 EvJobRender *job_render = EV_JOB_RENDER (job);
292 /* If the job is outside of our interest, we silently discard it */
293 if ((job_render->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
294 (job_render->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
295 g_object_unref (job);
299 job_info = find_job_cache (pixbuf_cache, job_render->page);
301 copy_job_to_job_info (job_render, job_info, pixbuf_cache);
302 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
305 /* This checks a job to see if the job would generate the right sized pixbuf
306 * given a scale. If it won't, it removes the job and clears it to NULL.
309 check_job_size_and_unref (EvPixbufCache *pixbuf_cache,
310 CacheJobInfo *job_info,
317 if (job_info->job == NULL)
320 _get_page_size_for_scale_and_rotation (job_info->job->document,
321 EV_JOB_RENDER (job_info->job)->page,
323 EV_JOB_RENDER (job_info->job)->rotation,
325 if (width == EV_JOB_RENDER (job_info->job)->target_width &&
326 height == EV_JOB_RENDER (job_info->job)->target_height)
329 g_signal_handlers_disconnect_by_func (job_info->job,
330 G_CALLBACK (job_finished_cb),
332 ev_job_cancel (job_info->job);
333 g_object_unref (job_info->job);
334 job_info->job = NULL;
337 /* Do all function that copies a job from an older cache to it's position in the
338 * new cache. It clears the old job if it doesn't have a place.
341 move_one_job (CacheJobInfo *job_info,
342 EvPixbufCache *pixbuf_cache,
344 CacheJobInfo *new_job_list,
345 CacheJobInfo *new_prev_job,
346 CacheJobInfo *new_next_job,
347 int new_preload_cache_size,
352 CacheJobInfo *target_page = NULL;
356 if (page < (start_page - new_preload_cache_size) ||
357 page > (end_page + new_preload_cache_size)) {
358 dispose_cache_job_info (job_info, pixbuf_cache);
362 /* find the target page to copy it over to. */
363 if (page < start_page) {
364 page_offset = (page - (start_page - new_preload_cache_size));
366 g_assert (page_offset >= 0 &&
367 page_offset < new_preload_cache_size);
368 target_page = new_prev_job + page_offset;
369 new_priority = EV_JOB_PRIORITY_LOW;
370 } else if (page > end_page) {
371 page_offset = (page - (end_page + 1));
373 g_assert (page_offset >= 0 &&
374 page_offset < new_preload_cache_size);
375 target_page = new_next_job + page_offset;
376 new_priority = EV_JOB_PRIORITY_LOW;
378 page_offset = page - start_page;
379 g_assert (page_offset >= 0 &&
380 page_offset <= ((end_page - start_page) + 1));
381 new_priority = EV_JOB_PRIORITY_URGENT;
382 target_page = new_job_list + page_offset;
385 *target_page = *job_info;
386 job_info->job = NULL;
387 job_info->region = NULL;
388 job_info->surface = NULL;
390 if (new_priority != priority && target_page->job) {
391 ev_job_scheduler_update_job (target_page->job, new_priority);
396 ev_pixbuf_cache_get_page_size (EvPixbufCache *pixbuf_cache,
403 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
404 page_index, scale, rotation,
406 return height * cairo_format_stride_for_width (CAIRO_FORMAT_RGB24, width);
410 ev_pixbuf_cache_get_preload_size (EvPixbufCache *pixbuf_cache,
416 gsize range_size = 0;
417 gint new_preload_cache_size = 0;
419 guint n_pages = ev_document_get_n_pages (pixbuf_cache->document);
421 /* Get the size of the current range */
422 for (i = start_page; i <= end_page; i++) {
423 range_size += ev_pixbuf_cache_get_page_size (pixbuf_cache, i, scale, rotation);
426 if (range_size >= pixbuf_cache->max_size)
427 return new_preload_cache_size;
430 while (((start_page - i > 0) || (end_page + i < n_pages)) &&
431 new_preload_cache_size < MAX_PRELOADED_PAGES) {
433 gboolean updated = FALSE;
435 if (end_page + i < n_pages) {
436 page_size = ev_pixbuf_cache_get_page_size (pixbuf_cache, end_page + i,
438 if (page_size + range_size <= pixbuf_cache->max_size) {
439 range_size += page_size;
440 new_preload_cache_size++;
447 if (start_page - i > 0) {
448 page_size = ev_pixbuf_cache_get_page_size (pixbuf_cache, start_page - i,
450 if (page_size + range_size <= pixbuf_cache->max_size) {
451 range_size += page_size;
453 new_preload_cache_size++;
461 return new_preload_cache_size;
465 ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache,
469 CacheJobInfo *new_job_list;
470 CacheJobInfo *new_prev_job = NULL;
471 CacheJobInfo *new_next_job = NULL;
472 gint new_preload_cache_size;
473 guint new_job_list_len;
475 gdouble scale = ev_document_model_get_scale (pixbuf_cache->model);
476 gint rotation = ev_document_model_get_rotation (pixbuf_cache->model);
478 new_preload_cache_size = ev_pixbuf_cache_get_preload_size (pixbuf_cache,
483 if (pixbuf_cache->start_page == start_page &&
484 pixbuf_cache->end_page == end_page &&
485 pixbuf_cache->preload_cache_size == new_preload_cache_size)
488 new_job_list_len = (end_page - start_page) + 1;
489 new_job_list = g_slice_alloc0 (sizeof (CacheJobInfo) * new_job_list_len);
490 if (new_preload_cache_size > 0) {
491 new_prev_job = g_slice_alloc0 (sizeof (CacheJobInfo) * new_preload_cache_size);
492 new_next_job = g_slice_alloc0 (sizeof (CacheJobInfo) * new_preload_cache_size);
495 /* We go through each job in the old cache and either clear it or move
496 * it to a new location. */
498 /* Start with the prev cache. */
499 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
500 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
502 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
504 move_one_job (pixbuf_cache->prev_job + i,
506 new_job_list, new_prev_job, new_next_job,
507 new_preload_cache_size,
508 start_page, end_page, EV_JOB_PRIORITY_LOW);
513 page = pixbuf_cache->start_page;
514 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache) && page >= 0; i++) {
515 move_one_job (pixbuf_cache->job_list + i,
517 new_job_list, new_prev_job, new_next_job,
518 new_preload_cache_size,
519 start_page, end_page, EV_JOB_PRIORITY_URGENT);
523 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
524 if (page >= ev_document_get_n_pages (pixbuf_cache->document)) {
525 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
527 move_one_job (pixbuf_cache->next_job + i,
529 new_job_list, new_prev_job, new_next_job,
530 new_preload_cache_size,
531 start_page, end_page, EV_JOB_PRIORITY_LOW);
536 if (pixbuf_cache->job_list) {
537 g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->job_list_len,
538 pixbuf_cache->job_list);
540 if (pixbuf_cache->prev_job) {
541 g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->preload_cache_size,
542 pixbuf_cache->prev_job);
544 if (pixbuf_cache->next_job) {
545 g_slice_free1 (sizeof (CacheJobInfo) * pixbuf_cache->preload_cache_size,
546 pixbuf_cache->next_job);
549 pixbuf_cache->preload_cache_size = new_preload_cache_size;
550 pixbuf_cache->job_list_len = new_job_list_len;
552 pixbuf_cache->job_list = new_job_list;
553 pixbuf_cache->prev_job = new_prev_job;
554 pixbuf_cache->next_job = new_next_job;
556 pixbuf_cache->start_page = start_page;
557 pixbuf_cache->end_page = end_page;
560 static CacheJobInfo *
561 find_job_cache (EvPixbufCache *pixbuf_cache,
566 if (page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size) ||
567 page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))
570 if (page < pixbuf_cache->start_page) {
571 page_offset = (page - (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size));
573 g_assert (page_offset >= 0 &&
574 page_offset < pixbuf_cache->preload_cache_size);
575 return pixbuf_cache->prev_job + page_offset;
578 if (page > pixbuf_cache->end_page) {
579 page_offset = (page - (pixbuf_cache->end_page + 1));
581 g_assert (page_offset >= 0 &&
582 page_offset < pixbuf_cache->preload_cache_size);
583 return pixbuf_cache->next_job + page_offset;
586 page_offset = page - pixbuf_cache->start_page;
587 g_assert (page_offset >= 0 &&
588 page_offset <= PAGE_CACHE_LEN(pixbuf_cache));
589 return pixbuf_cache->job_list + page_offset;
593 ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache,
598 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
599 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->job_list + i, scale);
602 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
603 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->prev_job + i, scale);
604 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->next_job + i, scale);
609 get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base)
611 GtkStyle *style = gtk_widget_get_style (widget);
613 if (gtk_widget_has_focus (widget)) {
614 *text = &style->text [GTK_STATE_SELECTED];
615 *base = &style->base [GTK_STATE_SELECTED];
617 *text = &style->text [GTK_STATE_ACTIVE];
618 *base = &style->base [GTK_STATE_ACTIVE];
623 add_job (EvPixbufCache *pixbuf_cache,
624 CacheJobInfo *job_info,
631 EvJobPriority priority)
633 job_info->page_ready = FALSE;
635 if (job_info->region)
636 gdk_region_destroy (job_info->region);
637 job_info->region = region ? gdk_region_copy (region) : NULL;
639 job_info->job = ev_job_render_new (pixbuf_cache->document,
640 page, rotation, scale,
643 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
644 GdkColor *text, *base;
646 gtk_widget_ensure_style (pixbuf_cache->view);
647 get_selection_colors (pixbuf_cache->view, &text, &base);
648 ev_job_render_set_selection_info (EV_JOB_RENDER (job_info->job),
649 &(job_info->target_points),
650 job_info->selection_style,
654 g_signal_connect (job_info->job, "finished",
655 G_CALLBACK (job_finished_cb),
657 ev_job_scheduler_push_job (job_info->job, priority);
661 add_job_if_needed (EvPixbufCache *pixbuf_cache,
662 CacheJobInfo *job_info,
666 EvJobPriority priority)
673 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
674 page, scale, rotation,
677 if (job_info->surface &&
678 cairo_image_surface_get_width (job_info->surface) == width &&
679 cairo_image_surface_get_height (job_info->surface) == height)
682 /* Free old surfaces for non visible pages */
683 if (priority == EV_JOB_PRIORITY_LOW) {
684 if (job_info->surface) {
685 cairo_surface_destroy (job_info->surface);
686 job_info->surface = NULL;
689 if (job_info->selection) {
690 cairo_surface_destroy (job_info->selection);
691 job_info->selection = NULL;
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 CacheJobInfo *job_info;
709 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
710 job_info = (pixbuf_cache->job_list + i);
711 page = pixbuf_cache->start_page + i;
713 add_job_if_needed (pixbuf_cache, job_info,
714 page, rotation, scale,
715 EV_JOB_PRIORITY_URGENT);
718 for (i = FIRST_VISIBLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) {
719 job_info = (pixbuf_cache->prev_job + i);
720 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i;
722 add_job_if_needed (pixbuf_cache, job_info,
723 page, rotation, scale,
724 EV_JOB_PRIORITY_LOW);
727 for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache); i++) {
728 job_info = (pixbuf_cache->next_job + i);
729 page = pixbuf_cache->end_page + 1 + i;
731 add_job_if_needed (pixbuf_cache, job_info,
732 page, rotation, scale,
733 EV_JOB_PRIORITY_LOW);
739 ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
744 GList *selection_list)
746 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
748 g_return_if_fail (start_page >= 0 && start_page < ev_document_get_n_pages (pixbuf_cache->document));
749 g_return_if_fail (end_page >= 0 && end_page < ev_document_get_n_pages (pixbuf_cache->document));
750 g_return_if_fail (end_page >= start_page);
752 /* First, resize the page_range as needed. We cull old pages
754 ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page);
756 /* Then, we update the current jobs to see if any of them are the wrong
757 * size, we remove them if we need to. */
758 ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale);
760 /* Next, we update the target selection for our pages */
761 ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list);
763 /* Finally, we add the new jobs for all the sizes that don't have a
765 ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale);
769 ev_pixbuf_cache_set_inverted_colors (EvPixbufCache *pixbuf_cache,
770 gboolean inverted_colors)
774 if (pixbuf_cache->inverted_colors == inverted_colors)
777 pixbuf_cache->inverted_colors = inverted_colors;
779 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
780 CacheJobInfo *job_info;
782 job_info = pixbuf_cache->prev_job + i;
783 if (job_info->surface)
784 ev_document_misc_invert_surface (job_info->surface);
786 job_info = pixbuf_cache->next_job + i;
787 if (job_info->surface)
788 ev_document_misc_invert_surface (job_info->surface);
791 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
792 CacheJobInfo *job_info;
794 job_info = pixbuf_cache->job_list + i;
795 if (job_info->surface)
796 ev_document_misc_invert_surface (job_info->surface);
801 ev_pixbuf_cache_get_surface (EvPixbufCache *pixbuf_cache,
804 CacheJobInfo *job_info;
806 job_info = find_job_cache (pixbuf_cache, page);
807 if (job_info == NULL)
810 if (job_info->page_ready)
811 return job_info->surface;
813 /* We don't need to wait for the idle to handle the callback */
815 EV_JOB_RENDER (job_info->job)->page_ready) {
816 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
817 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
820 return job_info->surface;
824 new_selection_surface_needed (EvPixbufCache *pixbuf_cache,
825 CacheJobInfo *job_info,
829 if (job_info->selection) {
831 gint selection_width, selection_height;
833 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
837 selection_width = cairo_image_surface_get_width (job_info->selection);
838 selection_height = cairo_image_surface_get_height (job_info->selection);
840 if (width != selection_width || height != selection_height)
843 if (job_info->points_set)
851 clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
852 CacheJobInfo *job_info,
856 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
857 if (job_info->selection)
858 cairo_surface_destroy (job_info->selection);
859 job_info->selection = NULL;
860 job_info->selection_points.x1 = -1;
864 /* Clears the cache of jobs and pixbufs.
867 ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache)
871 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
872 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
873 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
876 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
877 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
883 ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache)
887 /* FIXME: doesn't update running jobs. */
888 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
889 CacheJobInfo *job_info;
891 job_info = pixbuf_cache->prev_job + i;
892 if (job_info->selection) {
893 cairo_surface_destroy (job_info->selection);
894 job_info->selection = NULL;
897 job_info = pixbuf_cache->next_job + i;
898 if (job_info->selection) {
899 cairo_surface_destroy (job_info->selection);
900 job_info->selection = NULL;
904 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
905 CacheJobInfo *job_info;
907 job_info = pixbuf_cache->job_list + i;
908 if (job_info->selection) {
909 cairo_surface_destroy (job_info->selection);
910 job_info->selection = NULL;
916 ev_pixbuf_cache_get_selection_surface (EvPixbufCache *pixbuf_cache,
921 CacheJobInfo *job_info;
923 /* the document does not implement the selection interface */
924 if (!EV_IS_SELECTION (pixbuf_cache->document))
927 job_info = find_job_cache (pixbuf_cache, page);
928 if (job_info == NULL)
931 /* No selection on this page */
932 if (!job_info->points_set)
935 /* If we have a running job, we just return what we have under the
936 * assumption that it'll be updated later and we can scale it as need
938 if (job_info->job && EV_JOB_RENDER (job_info->job)->include_selection)
939 return job_info->selection;
941 /* Now, lets see if we need to resize the image. If we do, we clear the
943 clear_selection_if_needed (pixbuf_cache, job_info, page, scale);
945 /* Finally, we see if the two scales are the same, and get a new pixbuf
946 * if needed. We do this synchronously for now. At some point, we
947 * _should_ be able to get rid of the doc_mutex, so the synchronicity
948 * doesn't kill us. Rendering a few glyphs should really be fast.
950 if (ev_rect_cmp (&(job_info->target_points), &(job_info->selection_points))) {
951 EvRectangle *old_points;
952 GdkColor *text, *base;
956 /* we need to get a new selection pixbuf */
957 ev_document_doc_mutex_lock ();
958 if (job_info->selection_points.x1 < 0) {
959 g_assert (job_info->selection == NULL);
962 g_assert (job_info->selection != NULL);
963 old_points = &(job_info->selection_points);
966 ev_page = ev_document_get_page (pixbuf_cache->document, page);
967 rc = ev_render_context_new (ev_page, 0, scale);
968 g_object_unref (ev_page);
970 if (job_info->selection_region)
971 gdk_region_destroy (job_info->selection_region);
972 job_info->selection_region =
973 ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document),
974 rc, job_info->selection_style,
975 &(job_info->target_points));
977 gtk_widget_ensure_style (pixbuf_cache->view);
979 get_selection_colors (pixbuf_cache->view, &text, &base);
981 ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
982 rc, &(job_info->selection),
983 &(job_info->target_points),
985 job_info->selection_style,
987 job_info->selection_points = job_info->target_points;
989 ev_document_doc_mutex_unlock ();
992 *region = job_info->selection_region;
993 return job_info->selection;
997 update_job_selection (CacheJobInfo *job_info,
998 EvViewSelection *selection)
1000 job_info->points_set = TRUE;
1001 job_info->target_points = selection->rect;
1002 job_info->selection_style = selection->style;
1006 clear_job_selection (CacheJobInfo *job_info)
1008 job_info->points_set = FALSE;
1009 job_info->selection_points.x1 = -1;
1011 if (job_info->selection) {
1012 cairo_surface_destroy (job_info->selection);
1013 job_info->selection = NULL;
1017 /* This function will reset the selection on pages that no longer have them, and
1018 * will update the target_selection on those that need it. It will _not_ free
1019 * the previous selection_list -- that's up to caller to do.
1022 ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
1023 GList *selection_list)
1025 EvViewSelection *selection;
1026 GList *list = selection_list;
1030 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
1032 if (!EV_IS_SELECTION (pixbuf_cache->document))
1035 /* We check each area to see what needs updating, and what needs freeing; */
1036 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1037 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1045 if (((EvViewSelection *)list->data)->page == page) {
1046 selection = list->data;
1048 } else if (((EvViewSelection *)list->data)->page > page)
1054 update_job_selection (pixbuf_cache->prev_job + i, selection);
1056 clear_job_selection (pixbuf_cache->prev_job + i);
1060 page = pixbuf_cache->start_page;
1061 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1064 if (((EvViewSelection *)list->data)->page == page) {
1065 selection = list->data;
1067 } else if (((EvViewSelection *)list->data)->page > page)
1073 update_job_selection (pixbuf_cache->job_list + i, selection);
1075 clear_job_selection (pixbuf_cache->job_list + i);
1079 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1080 if (page >= ev_document_get_n_pages (pixbuf_cache->document))
1085 if (((EvViewSelection *)list->data)->page == page) {
1086 selection = list->data;
1088 } else if (((EvViewSelection *)list->data)->page > page)
1094 update_job_selection (pixbuf_cache->next_job + i, selection);
1096 clear_job_selection (pixbuf_cache->next_job + i);
1102 /* Returns what the pixbuf cache thinks is */
1105 ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
1107 EvViewSelection *selection;
1108 GList *retval = NULL;
1112 g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
1114 /* We check each area to see what needs updating, and what needs freeing; */
1115 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1116 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1122 if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) {
1123 selection = g_new0 (EvViewSelection, 1);
1124 selection->page = page;
1125 selection->rect = pixbuf_cache->prev_job[i].selection_points;
1126 if (pixbuf_cache->prev_job[i].selection_region)
1127 selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region);
1128 retval = g_list_append (retval, selection);
1134 page = pixbuf_cache->start_page;
1135 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1136 if (pixbuf_cache->job_list[i].selection_points.x1 != -1) {
1137 selection = g_new0 (EvViewSelection, 1);
1138 selection->page = page;
1139 selection->rect = pixbuf_cache->job_list[i].selection_points;
1140 if (pixbuf_cache->job_list[i].selection_region)
1141 selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region);
1142 retval = g_list_append (retval, selection);
1148 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1149 if (page >= ev_document_get_n_pages (pixbuf_cache->document))
1152 if (pixbuf_cache->next_job[i].selection_points.x1 != -1) {
1153 selection = g_new0 (EvViewSelection, 1);
1154 selection->page = page;
1155 selection->rect = pixbuf_cache->next_job[i].selection_points;
1156 if (pixbuf_cache->next_job[i].selection_region)
1157 selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region);
1158 retval = g_list_append (retval, selection);
1168 ev_pixbuf_cache_reload_page (EvPixbufCache *pixbuf_cache,
1174 CacheJobInfo *job_info;
1177 job_info = find_job_cache (pixbuf_cache, page);
1178 if (job_info == NULL)
1181 _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
1182 page, scale, rotation,
1184 add_job (pixbuf_cache, job_info, region,
1185 width, height, page, rotation, scale,
1186 EV_JOB_PRIORITY_URGENT);