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authorCarlos Garcia Campos <carlosgc@gnome.org>2009-01-18 11:53:54 (GMT)
committer Carlos Garcia Campos <carlosgc@src.gnome.org>2009-01-18 11:53:54 (GMT)
commit68d0fc3c59185065d9694ba3f8cb2665b984eb9f (patch)
tree1c3495114d26e1b9d201c557c351d5cf3996f925 /shell/ev-pixbuf-cache.c
parent51e1ae36121928f84940b8e8dcb317f87157933b (diff)
Move EvView specific code to a libeviview library so that it can be
2009-01-18 Carlos Garcia Campos <carlosgc@gnome.org> * configure.ac: * Makefile.am: * libdocument/Makefile.am: * libview/Makefile.am: * libview/ev-job-scheduler.[ch]: * libview/ev-jobs.[ch]: * libview/ev-page-cache.[ch]: * libview/ev-pixbuf-cache.[ch]: * libview/ev-timeline.[ch]: * libview/ev-transition-animation.[ch]: * libview/ev-view-accessible.[ch]: * libview/ev-view-marshal.list: * libview/ev-view.[ch]: * shell/Makefile.am: Move EvView specific code to a libeviview library so that it can be embbeded in other applications. Based on patches by Tomeu Vizoso. Fixes bug #567751. svn path=/trunk/; revision=3348
Diffstat (limited to 'shell/ev-pixbuf-cache.c')
-rw-r--r--shell/ev-pixbuf-cache.c1252
1 files changed, 0 insertions, 1252 deletions
diff --git a/shell/ev-pixbuf-cache.c b/shell/ev-pixbuf-cache.c
deleted file mode 100644
index 46976af..0000000
--- a/shell/ev-pixbuf-cache.c
+++ /dev/null
@@ -1,1252 +0,0 @@
-#include <config.h>
-#include "ev-pixbuf-cache.h"
-#include "ev-job-scheduler.h"
-#include "ev-page-cache.h"
-#include "ev-document-images.h"
-#include "ev-document-forms.h"
-#include "ev-image.h"
-#include "ev-form-field.h"
-
-typedef struct _CacheJobInfo
-{
- EvJob *job;
- EvRenderContext *rc;
- gboolean page_ready;
-
- /* Region of the page that needs to be drawn */
- GdkRegion *region;
-
- /* Data we get from rendering */
- cairo_surface_t *surface;
- GList *link_mapping;
- GList *image_mapping;
- GList *form_field_mapping;
- GdkRegion *text_mapping;
-
- /* Selection data.
- * Selection_points are the coordinates encapsulated in selection.
- * target_points is the target selection size. */
- EvRectangle selection_points;
- EvRectangle target_points;
- EvSelectionStyle selection_style;
- gboolean points_set;
-
- cairo_surface_t *selection;
- GdkRegion *selection_region;
-} CacheJobInfo;
-
-struct _EvPixbufCache
-{
- GObject parent;
-
- /* We keep a link to our containing view just for style information. */
- GtkWidget *view;
- EvDocument *document;
- int start_page;
- int end_page;
-
- /* preload_cache_size is the number of pages prior to the current
- * visible area that we cache. It's normally 1, but could be 2 in the
- * case of twin pages.
- */
- int preload_cache_size;
- CacheJobInfo *prev_job;
- CacheJobInfo *job_list;
- CacheJobInfo *next_job;
-};
-
-struct _EvPixbufCacheClass
-{
- GObjectClass parent_class;
-
- void (* job_finished) (EvPixbufCache *pixbuf_cache);
-};
-
-
-enum
-{
- JOB_FINISHED,
- N_SIGNALS,
-};
-
-static guint signals[N_SIGNALS] = {0, };
-
-static void ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache);
-static void ev_pixbuf_cache_class_init (EvPixbufCacheClass *pixbuf_cache);
-static void ev_pixbuf_cache_finalize (GObject *object);
-static void ev_pixbuf_cache_dispose (GObject *object);
-static void job_page_ready_cb (EvJob *job,
- EvPixbufCache *pixbuf_cache);
-static void job_finished_cb (EvJob *job,
- EvPixbufCache *pixbuf_cache);
-static CacheJobInfo *find_job_cache (EvPixbufCache *pixbuf_cache,
- int page);
-static void copy_job_to_job_info (EvJobRender *job_render,
- CacheJobInfo *job_info,
- EvPixbufCache *pixbuf_cache);
-static void copy_job_page_and_selection_to_job_info (EvJobRender *job_render,
- CacheJobInfo *job_info,
- EvPixbufCache *pixbuf_cache);
-static gboolean new_selection_surface_needed(EvPixbufCache *pixbuf_cache,
- CacheJobInfo *job_info,
- gint page,
- gfloat scale);
-
-
-/* These are used for iterating through the prev and next arrays */
-#define FIRST_VISIBLE_PREV(pixbuf_cache) \
- (MAX (0, pixbuf_cache->preload_cache_size - pixbuf_cache->start_page))
-#define VISIBLE_NEXT_LEN(pixbuf_cache, page_cache) \
- (MIN(pixbuf_cache->preload_cache_size, ev_page_cache_get_n_pages (page_cache) - (1 + pixbuf_cache->end_page)))
-#define PAGE_CACHE_LEN(pixbuf_cache) \
- ((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1)
-
-G_DEFINE_TYPE (EvPixbufCache, ev_pixbuf_cache, G_TYPE_OBJECT)
-
-static void
-ev_pixbuf_cache_init (EvPixbufCache *pixbuf_cache)
-{
- pixbuf_cache->start_page = 0;
- pixbuf_cache->end_page = 0;
- pixbuf_cache->job_list = g_new0 (CacheJobInfo, PAGE_CACHE_LEN (pixbuf_cache));
-
- pixbuf_cache->preload_cache_size = 2;
- pixbuf_cache->prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
- pixbuf_cache->next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
-}
-
-static void
-ev_pixbuf_cache_class_init (EvPixbufCacheClass *class)
-{
- GObjectClass *object_class;
-
- object_class = G_OBJECT_CLASS (class);
-
- object_class->finalize = ev_pixbuf_cache_finalize;
- object_class->dispose = ev_pixbuf_cache_dispose;
-
- signals[JOB_FINISHED] =
- g_signal_new ("job-finished",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
- G_STRUCT_OFFSET (EvPixbufCacheClass, job_finished),
- NULL, NULL,
- g_cclosure_marshal_VOID__POINTER,
- G_TYPE_NONE, 1,
- G_TYPE_POINTER);
-}
-
-static void
-ev_pixbuf_cache_finalize (GObject *object)
-{
- EvPixbufCache *pixbuf_cache;
-
- pixbuf_cache = EV_PIXBUF_CACHE (object);
-
- g_free (pixbuf_cache->prev_job);
- g_free (pixbuf_cache->job_list);
- g_free (pixbuf_cache->next_job);
-
- G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->finalize (object);
-}
-
-static void
-dispose_cache_job_info (CacheJobInfo *job_info,
- gpointer data)
-{
- if (job_info == NULL)
- return;
- if (job_info->job) {
- g_signal_handlers_disconnect_by_func (job_info->job,
- G_CALLBACK (job_page_ready_cb),
- data);
- g_signal_handlers_disconnect_by_func (job_info->job,
- G_CALLBACK (job_finished_cb),
- data);
- ev_job_cancel (job_info->job);
- g_object_unref (job_info->job);
- job_info->job = NULL;
- }
- if (job_info->surface) {
- cairo_surface_destroy (job_info->surface);
- job_info->surface = NULL;
- }
- if (job_info->region) {
- gdk_region_destroy (job_info->region);
- job_info->region = NULL;
- }
- if (job_info->link_mapping) {
- ev_link_mapping_free (job_info->link_mapping);
- job_info->link_mapping = NULL;
- }
- if (job_info->image_mapping) {
- ev_image_mapping_free (job_info->image_mapping);
- job_info->image_mapping = NULL;
- }
- if (job_info->form_field_mapping) {
- ev_form_field_mapping_free (job_info->form_field_mapping);
- job_info->form_field_mapping = NULL;
- }
- if (job_info->text_mapping) {
- gdk_region_destroy (job_info->text_mapping);
- job_info->text_mapping = NULL;
- }
- if (job_info->selection) {
- cairo_surface_destroy (job_info->selection);
- job_info->selection = NULL;
- }
- if (job_info->selection_region) {
- gdk_region_destroy (job_info->selection_region);
- job_info->selection_region = NULL;
- }
- if (job_info->rc) {
- g_object_unref (G_OBJECT (job_info->rc));
- job_info->rc = NULL;
- }
-
- job_info->points_set = FALSE;
-}
-
-static void
-ev_pixbuf_cache_dispose (GObject *object)
-{
- EvPixbufCache *pixbuf_cache;
- int i;
-
- pixbuf_cache = EV_PIXBUF_CACHE (object);
-
- for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
- dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
- dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
- }
-
- for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
- dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
- }
-
- G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->dispose (object);
-}
-
-
-EvPixbufCache *
-ev_pixbuf_cache_new (GtkWidget *view,
- EvDocument *document)
-{
- EvPixbufCache *pixbuf_cache;
-
- pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL);
- /* This is a backlink, so we don't ref this */
- pixbuf_cache->view = view;
- pixbuf_cache->document = document;
-
- return pixbuf_cache;
-}
-
-static void
-job_page_ready_cb (EvJob *job,
- EvPixbufCache *pixbuf_cache)
-{
- CacheJobInfo *job_info;
- EvJobRender *job_render = EV_JOB_RENDER (job);
-
- /* 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))) {
- g_object_unref (job);
- return;
- }
-
- job_info = find_job_cache (pixbuf_cache, job_render->page);
-
- copy_job_page_and_selection_to_job_info (job_render, job_info, pixbuf_cache);
- g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
-}
-
-static void
-job_finished_cb (EvJob *job,
- EvPixbufCache *pixbuf_cache)
-{
- CacheJobInfo *job_info;
- EvJobRender *job_render = EV_JOB_RENDER (job);
-
- /* 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))) {
- g_object_unref (job);
- return;
- }
-
- job_info = find_job_cache (pixbuf_cache, job_render->page);
- copy_job_to_job_info (job_render, job_info, pixbuf_cache);
-}
-
-/* This checks a job to see if the job would generate the right sized pixbuf
- * given a scale. If it won't, it removes the job and clears it to NULL.
- */
-static void
-check_job_size_and_unref (EvPixbufCache *pixbuf_cache,
- CacheJobInfo *job_info,
- EvPageCache *page_cache,
- gfloat scale)
-{
- gint width;
- gint height;
-
- g_assert (job_info);
-
- if (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)->rotation,
- scale,
- &width, &height);
-
- if (width == EV_JOB_RENDER (job_info->job)->target_width &&
- height == EV_JOB_RENDER (job_info->job)->target_height)
- return;
-
- g_signal_handlers_disconnect_by_func (job_info->job,
- G_CALLBACK (job_page_ready_cb),
- pixbuf_cache);
- g_signal_handlers_disconnect_by_func (job_info->job,
- G_CALLBACK (job_finished_cb),
- pixbuf_cache);
- ev_job_cancel (job_info->job);
- g_object_unref (job_info->job);
- job_info->job = NULL;
-}
-
-/* Do all function that copies a job from an older cache to it's position in the
- * new cache. It clears the old job if it doesn't have a place.
- */
-static void
-move_one_job (CacheJobInfo *job_info,
- EvPixbufCache *pixbuf_cache,
- int page,
- CacheJobInfo *new_job_list,
- CacheJobInfo *new_prev_job,
- CacheJobInfo *new_next_job,
- int start_page,
- int end_page,
- gint priority)
-{
- CacheJobInfo *target_page = NULL;
- int page_offset;
- gint new_priority;
-
- if (page < (start_page - pixbuf_cache->preload_cache_size) ||
- page > (end_page + pixbuf_cache->preload_cache_size)) {
- dispose_cache_job_info (job_info, pixbuf_cache);
- return;
- }
-
- /* find the target page to copy it over to. */
- if (page < start_page) {
- page_offset = (page - (start_page - pixbuf_cache->preload_cache_size));
-
- g_assert (page_offset >= 0 &&
- page_offset < pixbuf_cache->preload_cache_size);
- target_page = new_prev_job + page_offset;
- new_priority = EV_JOB_PRIORITY_LOW;
- } else if (page > end_page) {
- page_offset = (page - (end_page + 1));
-
- g_assert (page_offset >= 0 &&
- page_offset < pixbuf_cache->preload_cache_size);
- target_page = new_next_job + page_offset;
- new_priority = EV_JOB_PRIORITY_LOW;
- } else {
- page_offset = page - start_page;
- g_assert (page_offset >= 0 &&
- page_offset <= ((end_page - start_page) + 1));
- new_priority = EV_JOB_PRIORITY_URGENT;
- target_page = new_job_list + page_offset;
- }
-
- *target_page = *job_info;
- job_info->job = NULL;
- job_info->region = NULL;
- job_info->surface = NULL;
- job_info->link_mapping = NULL;
- job_info->image_mapping = NULL;
- job_info->form_field_mapping = NULL;
-
- if (new_priority != priority && target_page->job) {
- ev_job_scheduler_update_job (target_page->job, new_priority);
- }
-}
-
-static void
-ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache,
- gint start_page,
- gint end_page)
-{
- CacheJobInfo *new_job_list;
- CacheJobInfo *new_prev_job;
- CacheJobInfo *new_next_job;
- EvPageCache *page_cache;
- int i, page;
-
- if (pixbuf_cache->start_page == start_page &&
- pixbuf_cache->end_page == end_page)
- return;
-
- page_cache = ev_page_cache_get (pixbuf_cache->document);
-
- new_job_list = g_new0 (CacheJobInfo, (end_page - start_page) + 1);
- new_prev_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
- new_next_job = g_new0 (CacheJobInfo, pixbuf_cache->preload_cache_size);
-
- /* We go through each job in the old cache and either clear it or move
- * it to a new location. */
-
- /* Start with the prev cache. */
- page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
- for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
- if (page < 0) {
- dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
- } else {
- move_one_job (pixbuf_cache->prev_job + i,
- pixbuf_cache, page,
- new_job_list, new_prev_job, new_next_job,
- start_page, end_page, EV_JOB_PRIORITY_LOW);
- }
- page ++;
- }
-
- page = pixbuf_cache->start_page;
- for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
- move_one_job (pixbuf_cache->job_list + i,
- pixbuf_cache, page,
- new_job_list, new_prev_job, new_next_job,
- start_page, end_page, EV_JOB_PRIORITY_URGENT);
- page ++;
- }
-
- for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
- if (page >= ev_page_cache_get_n_pages (page_cache)) {
- dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
- } else {
- move_one_job (pixbuf_cache->next_job + i,
- pixbuf_cache, page,
- new_job_list, new_prev_job, new_next_job,
- start_page, end_page, EV_JOB_PRIORITY_LOW);
- }
- page ++;
- }
-
- g_free (pixbuf_cache->job_list);
- g_free (pixbuf_cache->prev_job);
- g_free (pixbuf_cache->next_job);
-
- pixbuf_cache->job_list = new_job_list;
- pixbuf_cache->prev_job = new_prev_job;
- pixbuf_cache->next_job = new_next_job;
-
- pixbuf_cache->start_page = start_page;
- pixbuf_cache->end_page = end_page;
-}
-
-static void
-copy_job_page_and_selection_to_job_info (EvJobRender *job_render,
- CacheJobInfo *job_info,
- EvPixbufCache *pixbuf_cache)
-{
- if (job_info->rc == NULL) {
- job_info->rc = ev_render_context_new (job_render->ev_page,
- job_render->rotation,
- job_render->scale);
- } else {
- ev_render_context_set_page (job_info->rc, job_render->ev_page);
- ev_render_context_set_rotation (job_info->rc, job_render->rotation);
- ev_render_context_set_scale (job_info->rc, job_render->scale);
- }
-
- if (job_info->surface) {
- cairo_surface_destroy (job_info->surface);
- }
- job_info->surface = cairo_surface_reference (job_render->surface);
-
- job_info->points_set = FALSE;
- if (job_render->flags & EV_RENDER_INCLUDE_SELECTION) {
- if (job_info->selection) {
- cairo_surface_destroy (job_info->selection);
- job_info->selection = NULL;
- }
- if (job_info->selection_region) {
- gdk_region_destroy (job_info->selection_region);
- job_info->selection_region = NULL;
- }
-
- job_info->selection_points = job_render->selection_points;
- job_info->selection_region = gdk_region_copy (job_render->selection_region);
- job_info->selection = cairo_surface_reference (job_render->selection);
- g_assert (job_info->selection_points.x1 >= 0);
- job_info->points_set = TRUE;
- }
-
- if (job_info->job) {
- g_signal_handlers_disconnect_by_func (job_info->job,
- G_CALLBACK (job_page_ready_cb),
- pixbuf_cache);
- }
-
- job_info->page_ready = TRUE;
-}
-
-static void
-copy_job_to_job_info (EvJobRender *job_render,
- CacheJobInfo *job_info,
- EvPixbufCache *pixbuf_cache)
-{
- if (!job_info->page_ready) {
- g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
- copy_job_page_and_selection_to_job_info (job_render,
- job_info,
- pixbuf_cache);
- }
-
- if (job_render->flags & EV_RENDER_INCLUDE_LINKS) {
- if (job_info->link_mapping)
- ev_link_mapping_free (job_info->link_mapping);
- job_info->link_mapping = job_render->link_mapping;
- }
-
- if (job_render->flags & EV_RENDER_INCLUDE_IMAGES) {
- if (job_info->image_mapping)
- ev_image_mapping_free (job_info->image_mapping);
- job_info->image_mapping = job_render->image_mapping;
- }
-
- if (job_render->flags & EV_RENDER_INCLUDE_FORMS) {
- if (job_info->form_field_mapping)
- ev_form_field_mapping_free (job_info->form_field_mapping);
- job_info->form_field_mapping = job_render->form_field_mapping;
- }
-
- if (job_render->flags & EV_RENDER_INCLUDE_TEXT) {
- if (job_info->text_mapping)
- gdk_region_destroy (job_info->text_mapping);
- job_info->text_mapping = job_render->text_mapping;
- }
-
- if (job_info->job) {
- g_signal_handlers_disconnect_by_func (job_info->job,
- G_CALLBACK (job_finished_cb),
- pixbuf_cache);
- ev_job_cancel (job_info->job);
- g_object_unref (job_info->job);
- job_info->job = NULL;
- }
-}
-
-static CacheJobInfo *
-find_job_cache (EvPixbufCache *pixbuf_cache,
- int page)
-{
- int page_offset;
-
- if (page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size) ||
- page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))
- return NULL;
-
- if (page < pixbuf_cache->start_page) {
- page_offset = (page - (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size));
-
- g_assert (page_offset >= 0 &&
- page_offset < pixbuf_cache->preload_cache_size);
- return pixbuf_cache->prev_job + page_offset;
- }
-
- if (page > pixbuf_cache->end_page) {
- page_offset = (page - (pixbuf_cache->end_page + 1));
-
- g_assert (page_offset >= 0 &&
- page_offset < pixbuf_cache->preload_cache_size);
- return pixbuf_cache->next_job + page_offset;
- }
-
- page_offset = page - pixbuf_cache->start_page;
- g_assert (page_offset >= 0 &&
- page_offset <= PAGE_CACHE_LEN(pixbuf_cache));
- return pixbuf_cache->job_list + page_offset;
-}
-
-static void
-ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache,
- gfloat scale)
-{
- EvPageCache *page_cache;
- int i;
-
- page_cache = ev_page_cache_get (pixbuf_cache->document);
-
- for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
- check_job_size_and_unref (pixbuf_cache, pixbuf_cache->job_list + i, page_cache, scale);
- }
-
- for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
- check_job_size_and_unref (pixbuf_cache, pixbuf_cache->prev_job + i, page_cache, scale);
- check_job_size_and_unref (pixbuf_cache, pixbuf_cache->next_job + i, page_cache, scale);
- }
-}
-
-static void
-get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base)
-{
- if (GTK_WIDGET_HAS_FOCUS (widget)) {
- *text = &widget->style->text [GTK_STATE_SELECTED];
- *base = &widget->style->base [GTK_STATE_SELECTED];
- } else {
- *text = &widget->style->text [GTK_STATE_ACTIVE];
- *base = &widget->style->base [GTK_STATE_ACTIVE];
- }
-}
-
-static void
-add_job (EvPixbufCache *pixbuf_cache,
- CacheJobInfo *job_info,
- EvPageCache *page_cache,
- GdkRegion *region,
- gint width,
- gint height,
- gint page,
- gint rotation,
- gfloat scale,
- EvJobPriority priority)
-{
- EvRenderFlags flags = 0;
-
- job_info->page_ready = FALSE;
-
- if (job_info->region)
- gdk_region_destroy (job_info->region);
- job_info->region = region ? gdk_region_copy (region) : NULL;
-
- /* Figure out what else we need for this job */
- if (job_info->link_mapping == NULL)
- flags |= EV_RENDER_INCLUDE_LINKS;
- if (job_info->image_mapping == NULL)
- flags |= EV_RENDER_INCLUDE_IMAGES;
- if (job_info->form_field_mapping == NULL)
- flags |= EV_RENDER_INCLUDE_FORMS;
- if (job_info->text_mapping == NULL)
- flags |= EV_RENDER_INCLUDE_TEXT;
-
- job_info->job = ev_job_render_new (pixbuf_cache->document,
- page, rotation, scale,
- width, height,
- flags);
-
- if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
- GdkColor *text, *base;
-
- gtk_widget_ensure_style (pixbuf_cache->view);
- get_selection_colors (pixbuf_cache->view, &text, &base);
- ev_job_render_set_selection_info (EV_JOB_RENDER (job_info->job),
- &(job_info->target_points),
- job_info->selection_style,
- text, base);
- }
-
- g_signal_connect (G_OBJECT (job_info->job), "page-ready",
- G_CALLBACK (job_page_ready_cb),
- pixbuf_cache);
- g_signal_connect (G_OBJECT (job_info->job), "finished",
- G_CALLBACK (job_finished_cb),
- pixbuf_cache);
- ev_job_scheduler_push_job (job_info->job, priority);
-}
-
-static void
-add_job_if_needed (EvPixbufCache *pixbuf_cache,
- CacheJobInfo *job_info,
- EvPageCache *page_cache,
- gint page,
- gint rotation,
- gfloat scale,
- EvJobPriority priority)
-{
- gint width, height;
-
- if (job_info->job)
- return;
-
- ev_page_cache_get_size (page_cache, page, rotation,
- scale, &width, &height);
-
- if (job_info->surface &&
- cairo_image_surface_get_width (job_info->surface) == width &&
- cairo_image_surface_get_height (job_info->surface) == height)
- return;
-
- add_job (pixbuf_cache, job_info, page_cache, NULL,
- width, height, page, rotation, scale,
- priority);
-}
-
-static void
-ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache,
- gint rotation,
- gfloat scale)
-{
- EvPageCache *page_cache;
- CacheJobInfo *job_info;
- int page;
- int i;
-
- page_cache = ev_page_cache_get (pixbuf_cache->document);
-
- for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
- job_info = (pixbuf_cache->job_list + i);
- page = pixbuf_cache->start_page + i;
-
- add_job_if_needed (pixbuf_cache, job_info,
- page_cache, page, rotation, scale,
- EV_JOB_PRIORITY_URGENT);
- }
-
- for (i = FIRST_VISIBLE_PREV(pixbuf_cache); i < pixbuf_cache->preload_cache_size; i++) {
- job_info = (pixbuf_cache->prev_job + i);
- page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i;
-
- add_job_if_needed (pixbuf_cache, job_info,
- page_cache, page, rotation, scale,
- EV_JOB_PRIORITY_LOW);
- }
-
- for (i = 0; i < VISIBLE_NEXT_LEN(pixbuf_cache, page_cache); i++) {
- job_info = (pixbuf_cache->next_job + i);
- page = pixbuf_cache->end_page + 1 + i;
-
- add_job_if_needed (pixbuf_cache, job_info,
- page_cache, page, rotation, scale,
- EV_JOB_PRIORITY_LOW);
- }
-
-}
-
-void
-ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache,
- gint start_page,
- gint end_page,
- gint rotation,
- gfloat scale,
- GList *selection_list)
-{
- EvPageCache *page_cache;
-
- g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache));
-
- page_cache = ev_page_cache_get (pixbuf_cache->document);
-
- g_return_if_fail (start_page >= 0 && start_page < ev_page_cache_get_n_pages (page_cache));
- g_return_if_fail (end_page >= 0 && end_page < ev_page_cache_get_n_pages (page_cache));
- g_return_if_fail (end_page >= start_page);
-
- /* First, resize the page_range as needed. We cull old pages
- * mercilessly. */
- ev_pixbuf_cache_update_range (pixbuf_cache, start_page, end_page);
-
- /* Then, we update the current jobs to see if any of them are the wrong
- * 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, rotation, scale);
-}
-
-cairo_surface_t *
-ev_pixbuf_cache_get_surface (EvPixbufCache *pixbuf_cache,
- gint page)
-{
- CacheJobInfo *job_info;
-
- job_info = find_job_cache (pixbuf_cache, page);
- if (job_info == NULL)
- return NULL;
-
- if (job_info->page_ready)
- return job_info->surface;
-
- /* We don't need to wait for the idle to handle the callback */
- if (job_info->job &&
- EV_JOB_RENDER (job_info->job)->page_ready) {
- copy_job_page_and_selection_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
- g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
- }
-
- return job_info->surface;
-}
-
-GList *
-ev_pixbuf_cache_get_link_mapping (EvPixbufCache *pixbuf_cache,
- gint page)
-{
- CacheJobInfo *job_info;
-
- job_info = find_job_cache (pixbuf_cache, page);
- if (job_info == NULL)
- return NULL;
-
- /* We don't need to wait for the idle to handle the callback */
- if (job_info->job &&
- EV_JOB (job_info->job)->finished) {
- copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
- }
-
- return job_info->link_mapping;
-}
-
-GList *
-ev_pixbuf_cache_get_image_mapping (EvPixbufCache *pixbuf_cache,
- gint page)
-{
- CacheJobInfo *job_info;
-
- if (!EV_IS_DOCUMENT_IMAGES (pixbuf_cache->document))
- return NULL;
-
- job_info = find_job_cache (pixbuf_cache, page);
- if (job_info == NULL)
- return NULL;
-
- /* We don't need to wait for the idle to handle the callback */
- if (job_info->job &&
- EV_JOB (job_info->job)->finished) {
- copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
- }
-
- return job_info->image_mapping;
-}
-
-GList *
-ev_pixbuf_cache_get_form_field_mapping (EvPixbufCache *pixbuf_cache,
- gint page)
-{
- CacheJobInfo *job_info;
-
- if (!EV_IS_DOCUMENT_FORMS (pixbuf_cache->document))
- return NULL;
-
- job_info = find_job_cache (pixbuf_cache, page);
- if (job_info == NULL)
- return NULL;
-
- /* We don't need to wait for the idle to handle the callback */
- if (job_info->job &&
- EV_JOB (job_info->job)->finished) {
- copy_job_to_job_info (EV_JOB_RENDER(job_info->job), job_info, pixbuf_cache);
- }
-
- return job_info->form_field_mapping;
-}
-
-static gboolean
-new_selection_surface_needed (EvPixbufCache *pixbuf_cache,
- CacheJobInfo *job_info,
- gint page,
- gfloat scale)
-{
- EvPageCache *page_cache;
-
- if (job_info->selection && job_info->rc) {
- gint width, height;
- gint selection_width, selection_height;
-
- page_cache = ev_page_cache_get (pixbuf_cache->document);
- ev_page_cache_get_size (page_cache, page,
- job_info->rc->rotation,
- scale, &width, &height);
-
- selection_width = cairo_image_surface_get_width (job_info->selection);
- selection_height = cairo_image_surface_get_height (job_info->selection);
-
- if (width != selection_width || height != selection_height)
- return TRUE;
- } else {
- if (job_info->points_set)
- return TRUE;
- }
-
- return FALSE;
-}
-
-static void
-clear_selection_if_needed (EvPixbufCache *pixbuf_cache,
- CacheJobInfo *job_info,
- gint page,
- gfloat scale)
-{
- if (new_selection_surface_needed (pixbuf_cache, job_info, page, scale)) {
- if (job_info->selection)
- cairo_surface_destroy (job_info->selection);
- job_info->selection = NULL;
- job_info->selection_points.x1 = -1;
- }
-}
-
-GdkRegion *
-ev_pixbuf_cache_get_text_mapping (EvPixbufCache *pixbuf_cache,
- gint page)
-{
- CacheJobInfo *job_info;
-
- job_info = find_job_cache (pixbuf_cache, page);
- if (job_info == NULL)
- return NULL;
-
- /* We don't need to wait for the idle to handle the callback */
- if (job_info->job &&
- EV_JOB (job_info->job)->finished) {
- copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache);
- }
-
- return job_info->text_mapping;
-}
-
-/* Clears the cache of jobs and pixbufs.
- */
-void
-ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache)
-{
- int i;
-
- for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
- dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache);
- dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache);
- }
-
- for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
- dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache);
- }
-}
-
-
-void
-ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache)
-{
- gint i;
-
- /* FIXME: doesn't update running jobs. */
- for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
- CacheJobInfo *job_info;
-
- job_info = pixbuf_cache->prev_job + i;
- if (job_info->selection) {
- cairo_surface_destroy (job_info->selection);
- job_info->selection = NULL;
- }
-
- job_info = pixbuf_cache->next_job + i;
- if (job_info->selection) {
- cairo_surface_destroy (job_info->selection);
- job_info->selection = NULL;
- }
- }
-
- for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
- CacheJobInfo *job_info;
-
- job_info = pixbuf_cache->job_list + i;
- if (job_info->selection) {
- cairo_surface_destroy (job_info->selection);
- job_info->selection = NULL;
- }
- }
-}
-
-cairo_surface_t *
-ev_pixbuf_cache_get_selection_surface (EvPixbufCache *pixbuf_cache,
- gint page,
- gfloat scale,
- GdkRegion **region)
-{
- CacheJobInfo *job_info;
-
- /* the document does not implement the selection interface */
- if (!EV_IS_SELECTION (pixbuf_cache->document))
- return NULL;
-
- job_info = find_job_cache (pixbuf_cache, page);
- if (job_info == NULL)
- return NULL;
-
- /* No selection on this page */
- if (!job_info->points_set)
- return NULL;
-
- /* Create new render context if needed (selection + fast scrolling) */
- if (job_info->rc == NULL) {
- EvPage *ev_page;
- ev_page = ev_document_get_page (pixbuf_cache->document, page);
- job_info->rc = ev_render_context_new (ev_page, 0, scale);
- g_object_unref (ev_page);
- }
-
- /* Update the rc */
- ev_render_context_set_scale (job_info->rc, scale);
-
- /* 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)->flags & EV_RENDER_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->target_points), &(job_info->selection_points))) {
- EvRectangle *old_points;
- GdkColor *text, *base;
-
- /* 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);
- old_points = NULL;
- } else {
- g_assert (job_info->selection != NULL);
- old_points = &(job_info->selection_points);
- }
-
- if (job_info->selection_region)
- gdk_region_destroy (job_info->selection_region);
- job_info->selection_region =
- ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document),
- job_info->rc,
- job_info->selection_style,
- &(job_info->target_points));
-
- gtk_widget_ensure_style (pixbuf_cache->view);
-
- get_selection_colors (pixbuf_cache->view, &text, &base);
-
- ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document),
- job_info->rc, &(job_info->selection),
- &(job_info->target_points),
- old_points,
- job_info->selection_style,
- text, base);
- job_info->selection_points = job_info->target_points;
- ev_document_doc_mutex_unlock ();
- }
- if (region)
- *region = job_info->selection_region;
- return job_info->selection;
-}
-
-static void
-update_job_selection (CacheJobInfo *job_info,
- EvViewSelection *selection)
-{
- job_info->points_set = TRUE;
- job_info->target_points = selection->rect;
- job_info->selection_style = selection->style;
-}
-
-static void
-clear_job_selection (CacheJobInfo *job_info)
-{
- job_info->points_set = FALSE;
- job_info->selection_points.x1 = -1;
-
- if (job_info->selection) {
- cairo_surface_destroy (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. It will _not_ free
- * the previous selection_list -- that's up to caller to do.
- */
-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));
-
- if (!EV_IS_SELECTION (pixbuf_cache->document))
- return;
-
- 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 ++;
- }
-}
-
-
-/* Returns what the pixbuf cache thinks is */
-
-GList *
-ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
-{
- EvPageCache *page_cache;
- EvViewSelection *selection;
- GList *retval = NULL;
- int page;
- int i;
-
- g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
-
- 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;
- }
-
- if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) {
- selection = g_new0 (EvViewSelection, 1);
- selection->page = page;
- selection->rect = pixbuf_cache->prev_job[i].selection_points;
- if (pixbuf_cache->prev_job[i].selection_region)
- selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region);
- retval = g_list_append (retval, selection);
- }
-
- page ++;
- }
-
- page = pixbuf_cache->start_page;
- for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
- if (pixbuf_cache->job_list[i].selection_points.x1 != -1) {
- selection = g_new0 (EvViewSelection, 1);
- selection->page = page;
- selection->rect = pixbuf_cache->job_list[i].selection_points;
- if (pixbuf_cache->job_list[i].selection_region)
- selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region);
- retval = g_list_append (retval, selection);
- }
-
- page ++;
- }
-
- for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
- if (page >= ev_page_cache_get_n_pages (page_cache))
- break;
-
- if (pixbuf_cache->next_job[i].selection_points.x1 != -1) {
- selection = g_new0 (EvViewSelection, 1);
- selection->page = page;
- selection->rect = pixbuf_cache->next_job[i].selection_points;
- if (pixbuf_cache->next_job[i].selection_region)
- selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region);
- retval = g_list_append (retval, selection);
- }
-
- page ++;
- }
-
- return retval;
-}
-
-void
-ev_pixbuf_cache_reload_page (EvPixbufCache *pixbuf_cache,
- GdkRegion *region,
- gint page,
- gint rotation,
- gdouble scale)
-{
- CacheJobInfo *job_info;
- EvPageCache *page_cache;
- gint width, height;
-
- job_info = find_job_cache (pixbuf_cache, page);
- if (job_info == NULL)
- return;
-
- page_cache = ev_page_cache_get (pixbuf_cache->document);
- ev_page_cache_get_size (page_cache, page, rotation, scale,
- &width, &height);
-
- add_job (pixbuf_cache, job_info, page_cache, region,
- width, height, page, rotation, scale,
- EV_JOB_PRIORITY_URGENT);
-}
-
-