#include "ev-pixbuf-cache.h"
#include "ev-job-queue.h"
#include "ev-page-cache.h"
-
+#include "ev-selection.h"
typedef struct _CacheJobInfo
{
EvJob *job;
GdkPixbuf *pixbuf;
+ EvRenderContext *rc;
GList *link_mapping;
+
+ /* Selection info. If the *_points structs are unset, we put -1 in x1.
+ * selection_points are the coordinates encapsulated in selection.
+ * new_points is the target selection size. */
+ EvRectangle selection_points;
+ GdkPixbuf *selection;
+ EvRectangle new_points;
} CacheJobInfo;
struct _EvPixbufCache
static void copy_job_to_job_info (EvJobRender *job_render,
CacheJobInfo *job_info,
EvPixbufCache *pixbuf_cache);
+static gboolean new_selection_pixbuf_needed(EvPixbufCache *pixbuf_cache,
+ CacheJobInfo *job_info,
+ gint page,
+ gfloat scale);
/* These are used for iterating through the prev and next arrays */
ev_link_mapping_free (job_info->link_mapping);
job_info->link_mapping = NULL;
}
+ if (job_info->selection) {
+ g_object_unref (G_OBJECT (job_info->selection));
+ job_info->selection = NULL;
+ }
+
+ job_info->selection_points.x1 = -1;
+ job_info->new_points.x1 = -1;
}
static void
GdkPixbuf *pixbuf;
/* If the job is outside of our interest, we silently discard it */
- if ((job_render->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
- (job_render->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
+ if ((job_render->rc->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) ||
+ (job_render->rc->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) {
g_object_unref (job);
return;
}
- job_info = find_job_cache (pixbuf_cache, job_render->page);
+ job_info = find_job_cache (pixbuf_cache, job_render->rc->page);
pixbuf = g_object_ref (job_render->pixbuf);
if (job_info->pixbuf)
ev_link_mapping_free (job_info->link_mapping);
job_info->link_mapping = job_render->link_mapping;
}
+ if (job_render->include_selection) {
+ if (job_info->selection)
+ g_object_unref (job_info->selection);
+ job_info->selection_points = job_render->selection_points;
+ job_info->selection = job_render->selection;
+ g_assert (job_info->selection_points.x1 >= 0);
+ }
if (job_info->job == job)
job_info->job = NULL;
return;
ev_page_cache_get_size (page_cache,
- EV_JOB_RENDER (job_info->job)->page,
+ EV_JOB_RENDER (job_info->job)->rc->page,
scale,
&width, &height);
pixbuf_cache, page,
new_job_list, new_prev_job, new_next_job,
start_page, end_page, EV_JOB_PRIORITY_HIGH);
- page++;
+ page ++;
}
for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
gfloat scale,
EvJobPriority priority)
{
+ gboolean include_links = FALSE;
+ gboolean include_selection = FALSE;
int width, height;
if (job_info->job)
return;
/* make a new job now */
+ if (job_info->rc == NULL) {
+ job_info->rc = ev_render_context_new (EV_ORIENTATION_PORTRAIT,
+ page, scale);
+ } else {
+ ev_render_context_set_page (job_info->rc, page);
+ ev_render_context_set_scale (job_info->rc, scale);
+ }
+
+ /* Figure out what else we need for this job */
+ if (job_info->link_mapping == NULL)
+ include_links = TRUE;
+ if (new_selection_pixbuf_needed (pixbuf_cache, job_info, page, scale)) {
+ include_selection = TRUE;
+ }
+
job_info->job = ev_job_render_new (pixbuf_cache->document,
- page, scale,
+ job_info->rc,
width, height,
- (job_info->link_mapping == NULL)?TRUE:FALSE);
+ &(job_info->new_points),
+ include_links,
+ include_selection);
ev_job_queue_add_job (job_info->job, priority);
g_signal_connect (job_info->job, "finished", G_CALLBACK (job_finished_cb), pixbuf_cache);
}
ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
gint start_page,
gint end_page,
- gfloat scale)
+ gfloat scale,
+ GList *selection_list)
{
EvPageCache *page_cache;
* size, we remove them if we need to. */
ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale);
+ /* Next, we update the target selection for our pages */
+ ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list);
+
/* Finally, we add the new jobs for all the sizes that don't have a
* pixbuf */
ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, scale);
return job_info->link_mapping;
}
+
+/* Selection */
+static gboolean
+new_selection_pixbuf_needed (EvPixbufCache *pixbuf_cache,
+ CacheJobInfo *job_info,
+ gint page,
+ gfloat scale)
+{
+ EvPageCache *page_cache;
+ gint width, height;
+
+ if (job_info->selection) {
+ page_cache = ev_page_cache_get (pixbuf_cache->document);
+ ev_page_cache_get_size (page_cache, page, scale,
+ &width, &height);
+
+ if (width != gdk_pixbuf_get_width (job_info->selection) ||
+ height != gdk_pixbuf_get_height (job_info->selection))
+ return TRUE;
+ } else {
+ if (job_info->new_points.x1 >= 0)
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static void
+clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
+ CacheJobInfo *job_info,
+ gint page,
+ gfloat scale)
+{
+ if (new_selection_pixbuf_needed (pixbuf_cache, job_info, page, scale)) {
+ g_object_unref (job_info->selection);
+ job_info->selection = NULL;
+ job_info->selection_points.x1 = -1;
+ }
+}
+
+GList *
+ev_pixbuf_cach_get_text_mapping (EvPixbufCache *pixbuf_cache,
+ gint page)
+{
+ return NULL;
+}
+
+GdkPixbuf *
+ev_pixbuf_cache_get_selection_pixbuf (EvPixbufCache *pixbuf_cache,
+ gint page,
+ gfloat scale)
+{
+ CacheJobInfo *job_info;
+
+ job_info = find_job_cache (pixbuf_cache, page);
+ if (job_info == NULL)
+ return NULL;
+
+ /* No selection on this page */
+ if (job_info->new_points.x1 < 0)
+ return NULL;
+
+ /* If we have a running job, we just return what we have under the
+ * assumption that it'll be updated later and we can scale it as need
+ * be */
+ if (job_info->job && EV_JOB_RENDER (job_info->job)->include_selection)
+ return job_info->selection;
+
+ /* Now, lets see if we need to resize the image. If we do, we clear the
+ * old one. */
+ clear_selection_if_needed (pixbuf_cache, job_info, page, scale);
+
+ /* Finally, we see if the two scales are the same, and get a new pixbuf
+ * if needed. We do this synchronously for now. At some point, we
+ * _should_ be able to get rid of the doc_mutex, so the synchronicity
+ * doesn't kill us. Rendering a few glyphs should really be fast.
+ */
+ if (ev_rect_cmp (&(job_info->new_points), &(job_info->selection_points))) {
+ EvRenderContext *rc;
+
+ rc = ev_render_context_new (EV_ORIENTATION_PORTRAIT,
+ page,
+ scale);
+
+ /* we need to get a new selection pixbuf */
+ ev_document_doc_mutex_lock ();
+ if (job_info->selection_points.x1 < 0) {
+ g_assert (job_info->selection == NULL);
+ ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
+ rc, &(job_info->selection),
+ &(job_info->new_points),
+ NULL);
+ } else {
+ g_assert (job_info->selection != NULL);
+ ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
+ rc, &(job_info->selection),
+ &(job_info->new_points),
+ &(job_info->selection_points));
+ }
+ job_info->selection_points = job_info->new_points;
+ ev_document_doc_mutex_unlock ();
+
+ }
+ return job_info->selection;
+}
+
+
+static void
+update_job_selection (CacheJobInfo *job_info,
+ EvViewSelection *selection)
+{
+ if (job_info->selection == NULL)
+ job_info->selection_points.x1 = -1;
+ job_info->new_points = selection->rect;
+}
+
+static void
+clear_job_selection (CacheJobInfo *job_info)
+{
+ job_info->selection_points.x1 = -1;
+ job_info->new_points.x1 = -1;
+
+ if (job_info->selection) {
+ g_object_unref (job_info->selection);
+ job_info->selection = NULL;
+ }
+}
+
+/* This function will reset the selection on pages that no longer have them, and
+ * will update the target_selection on those that need it.
+ */
+void
+ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
+ GList *selection_list)
+{
+ EvPageCache *page_cache;
+ EvViewSelection *selection;
+ GList *list = selection_list;
+ int page;
+ int i;
+
+ g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
+
+ page_cache = ev_page_cache_get (pixbuf_cache->document);
+
+ /* We check each area to see what needs updating, and what needs freeing; */
+ page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
+ for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
+ if (page < 0) {
+ page ++;
+ continue;
+ }
+
+ selection = NULL;
+ while (list) {
+ if (((EvViewSelection *)list->data)->page == page) {
+ selection = list->data;
+ break;
+ } else if (((EvViewSelection *)list->data)->page > page)
+ break;
+ list = list->next;
+ }
+
+ if (selection)
+ update_job_selection (pixbuf_cache->prev_job + i, selection);
+ else
+ clear_job_selection (pixbuf_cache->prev_job + i);
+ page ++;
+ }
+
+ page = pixbuf_cache->start_page;
+ for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
+ selection = NULL;
+ while (list) {
+ if (((EvViewSelection *)list->data)->page == page) {
+ selection = list->data;
+ break;
+ } else if (((EvViewSelection *)list->data)->page > page)
+ break;
+ list = list->next;
+ }
+
+ if (selection)
+ update_job_selection (pixbuf_cache->job_list + i, selection);
+ else
+ clear_job_selection (pixbuf_cache->job_list + i);
+ page ++;
+ }
+
+ for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
+ if (page >= ev_page_cache_get_n_pages (page_cache))
+ break;
+
+ selection = NULL;
+ while (list) {
+ if (((EvViewSelection *)list->data)->page == page) {
+ selection = list->data;
+ break;
+ } else if (((EvViewSelection *)list->data)->page > page)
+ break;
+ list = list->next;
+ }
+
+ if (selection)
+ update_job_selection (pixbuf_cache->next_job + i, selection);
+ else
+ clear_job_selection (pixbuf_cache->next_job + i);
+ page ++;
+ }
+}
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff