2 #include "ev-pixbuf-cache.h"
3 #include "ev-job-scheduler.h"
4 #include "ev-page-cache.h"
5 #include "ev-document-images.h"
6 #include "ev-document-forms.h"
8 #include "ev-form-field.h"
10 typedef struct _CacheJobInfo
16 /* Region of the page that needs to be drawn */
19 /* Data we get from rendering */
20 cairo_surface_t *surface;
23 GList *form_field_mapping;
24 GdkRegion *text_mapping;
27 * Selection_points are the coordinates encapsulated in selection.
28 * target_points is the target selection size. */
29 EvRectangle selection_points;
30 EvRectangle target_points;
31 EvSelectionStyle selection_style;
34 cairo_surface_t *selection;
35 GdkRegion *selection_region;
42 /* We keep a link to our containing view just for style information. */
48 /* preload_cache_size is the number of pages prior to the current
49 * visible area that we cache. It's normally 1, but could be 2 in the
52 int preload_cache_size;
53 CacheJobInfo *prev_job;
54 CacheJobInfo *job_list;
55 CacheJobInfo *next_job;
58 struct _EvPixbufCacheClass
60 GObjectClass parent_class;
62 void (* job_finished) (EvPixbufCache *pixbuf_cache);
72 static guint signals[N_SIGNALS] = {0, };
74 static void ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache);
75 static void ev_pixbuf_cache_class_init (EvPixbufCacheClass *pixbuf_cache);
76 static void ev_pixbuf_cache_finalize (GObject *object);
77 static void ev_pixbuf_cache_dispose (GObject *object);
78 static void job_page_ready_cb (EvJob *job,
79 EvPixbufCache *pixbuf_cache);
80 static void job_finished_cb (EvJob *job,
81 EvPixbufCache *pixbuf_cache);
82 static CacheJobInfo *find_job_cache (EvPixbufCache *pixbuf_cache,
84 static void copy_job_to_job_info (EvJobRender *job_render,
85 CacheJobInfo *job_info,
86 EvPixbufCache *pixbuf_cache);
87 static void copy_job_page_and_selection_to_job_info (EvJobRender *job_render,
88 CacheJobInfo *job_info,
89 EvPixbufCache *pixbuf_cache);
90 static gboolean new_selection_surface_needed(EvPixbufCache *pixbuf_cache,
91 CacheJobInfo *job_info,
96 /* These are used for iterating through the prev and next arrays */
97 #define FIRST_VISIBLE_PREV(pixbuf_cache) \
98 (MAX (0, pixbuf_cache->preload_cache_size - pixbuf_cache->start_page))
99 #define VISIBLE_NEXT_LEN(pixbuf_cache, page_cache) \
100 (MIN(pixbuf_cache->preload_cache_size, ev_page_cache_get_n_pages (page_cache) - (1 + pixbuf_cache->end_page)))
101 #define PAGE_CACHE_LEN(pixbuf_cache) \
102 ((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1)
104 G_DEFINE_TYPE (EvPixbufCache, ev_pixbuf_cache, G_TYPE_OBJECT)
107 ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache)
109 pixbuf_cache->start_page = 0;
110 pixbuf_cache->end_page = 0;
111 pixbuf_cache->job_list = g_new0 (CacheJobInfo, PAGE_CACHE_LEN (pixbuf_cache));
113 pixbuf_cache->preload_cache_size = 2;
114 pixbuf_cache->prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
115 pixbuf_cache->next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
119 ev_pixbuf_cache_class_init (EvPixbufCacheClass *class)
121 GObjectClass *object_class;
123 object_class = G_OBJECT_CLASS (class);
125 object_class->finalize = ev_pixbuf_cache_finalize;
126 object_class->dispose = ev_pixbuf_cache_dispose;
128 signals[JOB_FINISHED] =
129 g_signal_new ("job-finished",
130 G_OBJECT_CLASS_TYPE (object_class),
131 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
132 G_STRUCT_OFFSET (EvPixbufCacheClass, job_finished),
134 g_cclosure_marshal_VOID__POINTER,
140 ev_pixbuf_cache_finalize (GObject *object)
142 EvPixbufCache *pixbuf_cache;
144 pixbuf_cache = EV_PIXBUF_CACHE (object);
146 g_free (pixbuf_cache->prev_job);
147 g_free (pixbuf_cache->job_list);
148 g_free (pixbuf_cache->next_job);
150 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->finalize (object);
154 dispose_cache_job_info (CacheJobInfo *job_info,
157 if (job_info == NULL)
160 g_signal_handlers_disconnect_by_func (job_info->job,
161 G_CALLBACK (job_page_ready_cb),
163 g_signal_handlers_disconnect_by_func (job_info->job,
164 G_CALLBACK (job_finished_cb),
166 ev_job_cancel (job_info->job);
167 g_object_unref (job_info->job);
168 job_info->job = NULL;
170 if (job_info->surface) {
171 cairo_surface_destroy (job_info->surface);
172 job_info->surface = NULL;
174 if (job_info->region) {
175 gdk_region_destroy (job_info->region);
176 job_info->region = NULL;
178 if (job_info->link_mapping) {
179 ev_link_mapping_free (job_info->link_mapping);
180 job_info->link_mapping = NULL;
182 if (job_info->image_mapping) {
183 ev_image_mapping_free (job_info->image_mapping);
184 job_info->image_mapping = NULL;
186 if (job_info->form_field_mapping) {
187 ev_form_field_mapping_free (job_info->form_field_mapping);
188 job_info->form_field_mapping = NULL;
190 if (job_info->text_mapping) {
191 gdk_region_destroy (job_info->text_mapping);
192 job_info->text_mapping = NULL;
194 if (job_info->selection) {
195 cairo_surface_destroy (job_info->selection);
196 job_info->selection = NULL;
198 if (job_info->selection_region) {
199 gdk_region_destroy (job_info->selection_region);
200 job_info->selection_region = NULL;
203 g_object_unref (G_OBJECT (job_info->rc));
207 job_info->points_set = FALSE;
211 ev_pixbuf_cache_dispose (GObject *object)
213 EvPixbufCache *pixbuf_cache;
216 pixbuf_cache = EV_PIXBUF_CACHE (object);
218 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
219 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
220 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
223 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
224 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
227 G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->dispose (object);
232 ev_pixbuf_cache_new (GtkWidget *view,
233 EvDocument *document)
235 EvPixbufCache *pixbuf_cache;
237 pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL);
238 /* This is a backlink, so we don't ref this */
239 pixbuf_cache->view = view;
240 pixbuf_cache->document = document;
246 job_page_ready_cb (EvJob *job,
247 EvPixbufCache *pixbuf_cache)
249 CacheJobInfo *job_info;
250 EvJobRender *job_render = EV_JOB_RENDER (job);
252 /* If the job is outside of our interest, we silently discard it */
253 if ((job_render->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
254 (job_render->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
255 g_object_unref (job);
259 job_info = find_job_cache (pixbuf_cache, job_render->page);
261 copy_job_page_and_selection_to_job_info (job_render, job_info, pixbuf_cache);
262 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
266 job_finished_cb (EvJob *job,
267 EvPixbufCache *pixbuf_cache)
269 CacheJobInfo *job_info;
270 EvJobRender *job_render = EV_JOB_RENDER (job);
272 /* If the job is outside of our interest, we silently discard it */
273 if ((job_render->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
274 (job_render->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
275 g_object_unref (job);
279 job_info = find_job_cache (pixbuf_cache, job_render->page);
280 copy_job_to_job_info (job_render, job_info, pixbuf_cache);
283 /* This checks a job to see if the job would generate the right sized pixbuf
284 * given a scale. If it won't, it removes the job and clears it to NULL.
287 check_job_size_and_unref (EvPixbufCache *pixbuf_cache,
288 CacheJobInfo *job_info,
289 EvPageCache *page_cache,
297 if (job_info->job == NULL)
300 ev_page_cache_get_size (page_cache,
301 EV_JOB_RENDER (job_info->job)->page,
302 EV_JOB_RENDER (job_info->job)->rotation,
306 if (width == EV_JOB_RENDER (job_info->job)->target_width &&
307 height == EV_JOB_RENDER (job_info->job)->target_height)
310 g_signal_handlers_disconnect_by_func (job_info->job,
311 G_CALLBACK (job_page_ready_cb),
313 g_signal_handlers_disconnect_by_func (job_info->job,
314 G_CALLBACK (job_finished_cb),
316 ev_job_cancel (job_info->job);
317 g_object_unref (job_info->job);
318 job_info->job = NULL;
321 /* Do all function that copies a job from an older cache to it's position in the
322 * new cache. It clears the old job if it doesn't have a place.
325 move_one_job (CacheJobInfo *job_info,
326 EvPixbufCache *pixbuf_cache,
328 CacheJobInfo *new_job_list,
329 CacheJobInfo *new_prev_job,
330 CacheJobInfo *new_next_job,
335 CacheJobInfo *target_page = NULL;
339 if (page < (start_page - pixbuf_cache->preload_cache_size) ||
340 page > (end_page + pixbuf_cache->preload_cache_size)) {
341 dispose_cache_job_info (job_info, pixbuf_cache);
345 /* find the target page to copy it over to. */
346 if (page < start_page) {
347 page_offset = (page - (start_page - pixbuf_cache->preload_cache_size));
349 g_assert (page_offset >= 0 &&
350 page_offset < pixbuf_cache->preload_cache_size);
351 target_page = new_prev_job + page_offset;
352 new_priority = EV_JOB_PRIORITY_LOW;
353 } else if (page > end_page) {
354 page_offset = (page - (end_page + 1));
356 g_assert (page_offset >= 0 &&
357 page_offset < pixbuf_cache->preload_cache_size);
358 target_page = new_next_job + page_offset;
359 new_priority = EV_JOB_PRIORITY_LOW;
361 page_offset = page - start_page;
362 g_assert (page_offset >= 0 &&
363 page_offset <= ((end_page - start_page) + 1));
364 new_priority = EV_JOB_PRIORITY_URGENT;
365 target_page = new_job_list + page_offset;
368 *target_page = *job_info;
369 job_info->job = NULL;
370 job_info->region = NULL;
371 job_info->surface = NULL;
372 job_info->link_mapping = NULL;
373 job_info->image_mapping = NULL;
374 job_info->form_field_mapping = NULL;
376 if (new_priority != priority && target_page->job) {
377 ev_job_scheduler_update_job (target_page->job, new_priority);
382 ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache,
386 CacheJobInfo *new_job_list;
387 CacheJobInfo *new_prev_job;
388 CacheJobInfo *new_next_job;
389 EvPageCache *page_cache;
392 if (pixbuf_cache->start_page == start_page &&
393 pixbuf_cache->end_page == end_page)
396 page_cache = ev_page_cache_get (pixbuf_cache->document);
398 new_job_list = g_new0 (CacheJobInfo, (end_page - start_page) + 1);
399 new_prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
400 new_next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
402 /* We go through each job in the old cache and either clear it or move
403 * it to a new location. */
405 /* Start with the prev cache. */
406 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
407 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
409 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
411 move_one_job (pixbuf_cache->prev_job + i,
413 new_job_list, new_prev_job, new_next_job,
414 start_page, end_page, EV_JOB_PRIORITY_LOW);
419 page = pixbuf_cache->start_page;
420 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
421 move_one_job (pixbuf_cache->job_list + i,
423 new_job_list, new_prev_job, new_next_job,
424 start_page, end_page, EV_JOB_PRIORITY_URGENT);
428 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
429 if (page >= ev_page_cache_get_n_pages (page_cache)) {
430 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
432 move_one_job (pixbuf_cache->next_job + i,
434 new_job_list, new_prev_job, new_next_job,
435 start_page, end_page, EV_JOB_PRIORITY_LOW);
440 g_free (pixbuf_cache->job_list);
441 g_free (pixbuf_cache->prev_job);
442 g_free (pixbuf_cache->next_job);
444 pixbuf_cache->job_list = new_job_list;
445 pixbuf_cache->prev_job = new_prev_job;
446 pixbuf_cache->next_job = new_next_job;
448 pixbuf_cache->start_page = start_page;
449 pixbuf_cache->end_page = end_page;
453 copy_job_page_and_selection_to_job_info (EvJobRender *job_render,
454 CacheJobInfo *job_info,
455 EvPixbufCache *pixbuf_cache)
457 if (job_info->rc == NULL) {
458 job_info->rc = ev_render_context_new (job_render->ev_page,
459 job_render->rotation,
462 ev_render_context_set_page (job_info->rc, job_render->ev_page);
463 ev_render_context_set_rotation (job_info->rc, job_render->rotation);
464 ev_render_context_set_scale (job_info->rc, job_render->scale);
467 if (job_info->surface) {
468 cairo_surface_destroy (job_info->surface);
470 job_info->surface = cairo_surface_reference (job_render->surface);
472 job_info->points_set = FALSE;
473 if (job_render->flags & EV_RENDER_INCLUDE_SELECTION) {
474 if (job_info->selection) {
475 cairo_surface_destroy (job_info->selection);
476 job_info->selection = NULL;
478 if (job_info->selection_region) {
479 gdk_region_destroy (job_info->selection_region);
480 job_info->selection_region = NULL;
483 job_info->selection_points = job_render->selection_points;
484 job_info->selection_region = gdk_region_copy (job_render->selection_region);
485 job_info->selection = cairo_surface_reference (job_render->selection);
486 g_assert (job_info->selection_points.x1 >= 0);
487 job_info->points_set = TRUE;
491 g_signal_handlers_disconnect_by_func (job_info->job,
492 G_CALLBACK (job_page_ready_cb),
496 job_info->page_ready = TRUE;
500 copy_job_to_job_info (EvJobRender *job_render,
501 CacheJobInfo *job_info,
502 EvPixbufCache *pixbuf_cache)
504 if (!job_info->page_ready) {
505 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
506 copy_job_page_and_selection_to_job_info (job_render,
511 if (job_render->flags & EV_RENDER_INCLUDE_LINKS) {
512 if (job_info->link_mapping)
513 ev_link_mapping_free (job_info->link_mapping);
514 job_info->link_mapping = job_render->link_mapping;
517 if (job_render->flags & EV_RENDER_INCLUDE_IMAGES) {
518 if (job_info->image_mapping)
519 ev_image_mapping_free (job_info->image_mapping);
520 job_info->image_mapping = job_render->image_mapping;
523 if (job_render->flags & EV_RENDER_INCLUDE_FORMS) {
524 if (job_info->form_field_mapping)
525 ev_form_field_mapping_free (job_info->form_field_mapping);
526 job_info->form_field_mapping = job_render->form_field_mapping;
529 if (job_render->flags & EV_RENDER_INCLUDE_TEXT) {
530 if (job_info->text_mapping)
531 gdk_region_destroy (job_info->text_mapping);
532 job_info->text_mapping = job_render->text_mapping;
536 g_signal_handlers_disconnect_by_func (job_info->job,
537 G_CALLBACK (job_finished_cb),
539 ev_job_cancel (job_info->job);
540 g_object_unref (job_info->job);
541 job_info->job = NULL;
545 static CacheJobInfo *
546 find_job_cache (EvPixbufCache *pixbuf_cache,
551 if (page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size) ||
552 page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))
555 if (page < pixbuf_cache->start_page) {
556 page_offset = (page - (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size));
558 g_assert (page_offset >= 0 &&
559 page_offset < pixbuf_cache->preload_cache_size);
560 return pixbuf_cache->prev_job + page_offset;
563 if (page > pixbuf_cache->end_page) {
564 page_offset = (page - (pixbuf_cache->end_page + 1));
566 g_assert (page_offset >= 0 &&
567 page_offset < pixbuf_cache->preload_cache_size);
568 return pixbuf_cache->next_job + page_offset;
571 page_offset = page - pixbuf_cache->start_page;
572 g_assert (page_offset >= 0 &&
573 page_offset <= PAGE_CACHE_LEN(pixbuf_cache));
574 return pixbuf_cache->job_list + page_offset;
578 ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache,
581 EvPageCache *page_cache;
584 page_cache = ev_page_cache_get (pixbuf_cache->document);
586 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
587 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->job_list + i, page_cache, scale);
590 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
591 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->prev_job + i, page_cache, scale);
592 check_job_size_and_unref (pixbuf_cache, pixbuf_cache->next_job + i, page_cache, scale);
597 get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base)
599 if (GTK_WIDGET_HAS_FOCUS (widget)) {
600 *text = &widget->style->text [GTK_STATE_SELECTED];
601 *base = &widget->style->base [GTK_STATE_SELECTED];
603 *text = &widget->style->text [GTK_STATE_ACTIVE];
604 *base = &widget->style->base [GTK_STATE_ACTIVE];
609 add_job (EvPixbufCache *pixbuf_cache,
610 CacheJobInfo *job_info,
611 EvPageCache *page_cache,
618 EvJobPriority priority)
620 EvRenderFlags flags = 0;
622 job_info->page_ready = FALSE;
624 if (job_info->region)
625 gdk_region_destroy (job_info->region);
626 job_info->region = region ? gdk_region_copy (region) : NULL;
628 /* Figure out what else we need for this job */
629 if (job_info->link_mapping == NULL)
630 flags |= EV_RENDER_INCLUDE_LINKS;
631 if (job_info->image_mapping == NULL)
632 flags |= EV_RENDER_INCLUDE_IMAGES;
633 if (job_info->form_field_mapping == NULL)
634 flags |= EV_RENDER_INCLUDE_FORMS;
635 if (job_info->text_mapping == NULL)
636 flags |= EV_RENDER_INCLUDE_TEXT;
638 job_info->job = ev_job_render_new (pixbuf_cache->document,
639 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 (G_OBJECT (job_info->job), "page-ready",
655 G_CALLBACK (job_page_ready_cb),
657 g_signal_connect (G_OBJECT (job_info->job), "finished",
658 G_CALLBACK (job_finished_cb),
660 ev_job_scheduler_push_job (job_info->job, priority);
664 add_job_if_needed (EvPixbufCache *pixbuf_cache,
665 CacheJobInfo *job_info,
666 EvPageCache *page_cache,
670 EvJobPriority priority)
677 ev_page_cache_get_size (page_cache, page, rotation,
678 scale, &width, &height);
680 if (job_info->surface &&
681 cairo_image_surface_get_width (job_info->surface) == width &&
682 cairo_image_surface_get_height (job_info->surface) == height)
685 add_job (pixbuf_cache, job_info, page_cache, NULL,
686 width, height, page, rotation, scale,
691 ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache,
695 EvPageCache *page_cache;
696 CacheJobInfo *job_info;
700 page_cache = ev_page_cache_get (pixbuf_cache->document);
702 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
703 job_info = (pixbuf_cache->job_list + i);
704 page = pixbuf_cache->start_page + i;
706 add_job_if_needed (pixbuf_cache, job_info,
707 page_cache, page, rotation, scale,
708 EV_JOB_PRIORITY_URGENT);
711 for (i = FIRST_VISIBLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) {
712 job_info = (pixbuf_cache->prev_job + i);
713 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i;
715 add_job_if_needed (pixbuf_cache, job_info,
716 page_cache, page, rotation, scale,
717 EV_JOB_PRIORITY_LOW);
720 for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache, page_cache); i++) {
721 job_info = (pixbuf_cache->next_job + i);
722 page = pixbuf_cache->end_page + 1 + i;
724 add_job_if_needed (pixbuf_cache, job_info,
725 page_cache, page, rotation, scale,
726 EV_JOB_PRIORITY_LOW);
732 ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
737 GList *selection_list)
739 EvPageCache *page_cache;
741 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
743 page_cache = ev_page_cache_get (pixbuf_cache->document);
745 g_return_if_fail (start_page >= 0 && start_page < ev_page_cache_get_n_pages (page_cache));
746 g_return_if_fail (end_page >= 0 && end_page < ev_page_cache_get_n_pages (page_cache));
747 g_return_if_fail (end_page >= start_page);
749 /* First, resize the page_range as needed. We cull old pages
751 ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page);
753 /* Then, we update the current jobs to see if any of them are the wrong
754 * size, we remove them if we need to. */
755 ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale);
757 /* Next, we update the target selection for our pages */
758 ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list);
760 /* Finally, we add the new jobs for all the sizes that don't have a
762 ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale);
766 ev_pixbuf_cache_get_surface (EvPixbufCache *pixbuf_cache,
769 CacheJobInfo *job_info;
771 job_info = find_job_cache (pixbuf_cache, page);
772 if (job_info == NULL)
775 if (job_info->page_ready)
776 return job_info->surface;
778 /* We don't need to wait for the idle to handle the callback */
780 EV_JOB_RENDER (job_info->job)->page_ready) {
781 copy_job_page_and_selection_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
782 g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
785 return job_info->surface;
789 ev_pixbuf_cache_get_link_mapping (EvPixbufCache *pixbuf_cache,
792 CacheJobInfo *job_info;
794 job_info = find_job_cache (pixbuf_cache, page);
795 if (job_info == NULL)
798 /* We don't need to wait for the idle to handle the callback */
800 EV_JOB (job_info->job)->finished) {
801 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
804 return job_info->link_mapping;
808 ev_pixbuf_cache_get_image_mapping (EvPixbufCache *pixbuf_cache,
811 CacheJobInfo *job_info;
813 if (!EV_IS_DOCUMENT_IMAGES (pixbuf_cache->document))
816 job_info = find_job_cache (pixbuf_cache, page);
817 if (job_info == NULL)
820 /* We don't need to wait for the idle to handle the callback */
822 EV_JOB (job_info->job)->finished) {
823 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
826 return job_info->image_mapping;
830 ev_pixbuf_cache_get_form_field_mapping (EvPixbufCache *pixbuf_cache,
833 CacheJobInfo *job_info;
835 if (!EV_IS_DOCUMENT_FORMS (pixbuf_cache->document))
838 job_info = find_job_cache (pixbuf_cache, page);
839 if (job_info == NULL)
842 /* We don't need to wait for the idle to handle the callback */
844 EV_JOB (job_info->job)->finished) {
845 copy_job_to_job_info (EV_JOB_RENDER(job_info->job), job_info, pixbuf_cache);
848 return job_info->form_field_mapping;
852 new_selection_surface_needed (EvPixbufCache *pixbuf_cache,
853 CacheJobInfo *job_info,
857 EvPageCache *page_cache;
859 if (job_info->selection && job_info->rc) {
861 gint selection_width, selection_height;
863 page_cache = ev_page_cache_get (pixbuf_cache->document);
864 ev_page_cache_get_size (page_cache, page,
865 job_info->rc->rotation,
866 scale, &width, &height);
868 selection_width = cairo_image_surface_get_width (job_info->selection);
869 selection_height = cairo_image_surface_get_height (job_info->selection);
871 if (width != selection_width || height != selection_height)
874 if (job_info->points_set)
882 clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
883 CacheJobInfo *job_info,
887 if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
888 if (job_info->selection)
889 cairo_surface_destroy (job_info->selection);
890 job_info->selection = NULL;
891 job_info->selection_points.x1 = -1;
896 ev_pixbuf_cache_get_text_mapping (EvPixbufCache *pixbuf_cache,
899 CacheJobInfo *job_info;
901 job_info = find_job_cache (pixbuf_cache, page);
902 if (job_info == NULL)
905 /* We don't need to wait for the idle to handle the callback */
907 EV_JOB (job_info->job)->finished) {
908 copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
911 return job_info->text_mapping;
914 /* Clears the cache of jobs and pixbufs.
917 ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache)
921 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
922 dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
923 dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
926 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
927 dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
933 ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache)
937 /* FIXME: doesn't update running jobs. */
938 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
939 CacheJobInfo *job_info;
941 job_info = pixbuf_cache->prev_job + i;
942 if (job_info->selection) {
943 cairo_surface_destroy (job_info->selection);
944 job_info->selection = NULL;
947 job_info = pixbuf_cache->next_job + i;
948 if (job_info->selection) {
949 cairo_surface_destroy (job_info->selection);
950 job_info->selection = NULL;
954 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
955 CacheJobInfo *job_info;
957 job_info = pixbuf_cache->job_list + i;
958 if (job_info->selection) {
959 cairo_surface_destroy (job_info->selection);
960 job_info->selection = NULL;
966 ev_pixbuf_cache_get_selection_surface (EvPixbufCache *pixbuf_cache,
971 CacheJobInfo *job_info;
973 /* the document does not implement the selection interface */
974 if (!EV_IS_SELECTION (pixbuf_cache->document))
977 job_info = find_job_cache (pixbuf_cache, page);
978 if (job_info == NULL)
981 /* No selection on this page */
982 if (!job_info->points_set)
985 /* Create new render context if needed (selection + fast scrolling) */
986 if (job_info->rc == NULL) {
988 ev_page = ev_document_get_page (pixbuf_cache->document, page);
989 job_info->rc = ev_render_context_new (ev_page, 0, scale);
990 g_object_unref (ev_page);
994 ev_render_context_set_scale (job_info->rc, scale);
996 /* If we have a running job, we just return what we have under the
997 * assumption that it'll be updated later and we can scale it as need
999 if (job_info->job && (EV_JOB_RENDER (job_info->job)->flags & EV_RENDER_INCLUDE_SELECTION))
1000 return job_info->selection;
1002 /* Now, lets see if we need to resize the image. If we do, we clear the
1004 clear_selection_if_needed (pixbuf_cache, job_info, page, scale);
1006 /* Finally, we see if the two scales are the same, and get a new pixbuf
1007 * if needed. We do this synchronously for now. At some point, we
1008 * _should_ be able to get rid of the doc_mutex, so the synchronicity
1009 * doesn't kill us. Rendering a few glyphs should really be fast.
1011 if (ev_rect_cmp (&(job_info->target_points), &(job_info->selection_points))) {
1012 EvRectangle *old_points;
1013 GdkColor *text, *base;
1015 /* we need to get a new selection pixbuf */
1016 ev_document_doc_mutex_lock ();
1017 if (job_info->selection_points.x1 < 0) {
1018 g_assert (job_info->selection == NULL);
1021 g_assert (job_info->selection != NULL);
1022 old_points = &(job_info->selection_points);
1025 if (job_info->selection_region)
1026 gdk_region_destroy (job_info->selection_region);
1027 job_info->selection_region =
1028 ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document),
1030 job_info->selection_style,
1031 &(job_info->target_points));
1033 gtk_widget_ensure_style (pixbuf_cache->view);
1035 get_selection_colors (pixbuf_cache->view, &text, &base);
1037 ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
1038 job_info->rc, &(job_info->selection),
1039 &(job_info->target_points),
1041 job_info->selection_style,
1043 job_info->selection_points = job_info->target_points;
1044 ev_document_doc_mutex_unlock ();
1047 *region = job_info->selection_region;
1048 return job_info->selection;
1052 update_job_selection (CacheJobInfo *job_info,
1053 EvViewSelection *selection)
1055 job_info->points_set = TRUE;
1056 job_info->target_points = selection->rect;
1057 job_info->selection_style = selection->style;
1061 clear_job_selection (CacheJobInfo *job_info)
1063 job_info->points_set = FALSE;
1064 job_info->selection_points.x1 = -1;
1066 if (job_info->selection) {
1067 cairo_surface_destroy (job_info->selection);
1068 job_info->selection = NULL;
1072 /* This function will reset the selection on pages that no longer have them, and
1073 * will update the target_selection on those that need it. It will _not_ free
1074 * the previous selection_list -- that's up to caller to do.
1077 ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
1078 GList *selection_list)
1080 EvPageCache *page_cache;
1081 EvViewSelection *selection;
1082 GList *list = selection_list;
1086 g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
1088 if (!EV_IS_SELECTION (pixbuf_cache->document))
1091 page_cache = ev_page_cache_get (pixbuf_cache->document);
1093 /* We check each area to see what needs updating, and what needs freeing; */
1094 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1095 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1103 if (((EvViewSelection *)list->data)->page == page) {
1104 selection = list->data;
1106 } else if (((EvViewSelection *)list->data)->page > page)
1112 update_job_selection (pixbuf_cache->prev_job + i, selection);
1114 clear_job_selection (pixbuf_cache->prev_job + i);
1118 page = pixbuf_cache->start_page;
1119 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1122 if (((EvViewSelection *)list->data)->page == page) {
1123 selection = list->data;
1125 } else if (((EvViewSelection *)list->data)->page > page)
1131 update_job_selection (pixbuf_cache->job_list + i, selection);
1133 clear_job_selection (pixbuf_cache->job_list + i);
1137 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1138 if (page >= ev_page_cache_get_n_pages (page_cache))
1143 if (((EvViewSelection *)list->data)->page == page) {
1144 selection = list->data;
1146 } else if (((EvViewSelection *)list->data)->page > page)
1152 update_job_selection (pixbuf_cache->next_job + i, selection);
1154 clear_job_selection (pixbuf_cache->next_job + i);
1160 /* Returns what the pixbuf cache thinks is */
1163 ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
1165 EvPageCache *page_cache;
1166 EvViewSelection *selection;
1167 GList *retval = NULL;
1171 g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
1173 page_cache = ev_page_cache_get (pixbuf_cache->document);
1175 /* We check each area to see what needs updating, and what needs freeing; */
1176 page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
1177 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1183 if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) {
1184 selection = g_new0 (EvViewSelection, 1);
1185 selection->page = page;
1186 selection->rect = pixbuf_cache->prev_job[i].selection_points;
1187 if (pixbuf_cache->prev_job[i].selection_region)
1188 selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region);
1189 retval = g_list_append (retval, selection);
1195 page = pixbuf_cache->start_page;
1196 for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
1197 if (pixbuf_cache->job_list[i].selection_points.x1 != -1) {
1198 selection = g_new0 (EvViewSelection, 1);
1199 selection->page = page;
1200 selection->rect = pixbuf_cache->job_list[i].selection_points;
1201 if (pixbuf_cache->job_list[i].selection_region)
1202 selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region);
1203 retval = g_list_append (retval, selection);
1209 for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
1210 if (page >= ev_page_cache_get_n_pages (page_cache))
1213 if (pixbuf_cache->next_job[i].selection_points.x1 != -1) {
1214 selection = g_new0 (EvViewSelection, 1);
1215 selection->page = page;
1216 selection->rect = pixbuf_cache->next_job[i].selection_points;
1217 if (pixbuf_cache->next_job[i].selection_region)
1218 selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region);
1219 retval = g_list_append (retval, selection);
1229 ev_pixbuf_cache_reload_page (EvPixbufCache *pixbuf_cache,
1235 CacheJobInfo *job_info;
1236 EvPageCache *page_cache;
1239 job_info = find_job_cache (pixbuf_cache, page);
1240 if (job_info == NULL)
1243 page_cache = ev_page_cache_get (pixbuf_cache->document);
1244 ev_page_cache_get_size (page_cache, page, rotation, scale,
1247 add_job (pixbuf_cache, job_info, page_cache, region,
1248 width, height, page, rotation, scale,
1249 EV_JOB_PRIORITY_URGENT);