/* We keep a link to our containing view just for style information. */
GtkWidget *view;
EvDocument *document;
+ EvDocumentModel *model;
int start_page;
int end_page;
gboolean inverted_colors;
+ gsize max_size;
+
/* 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.
#define PAGE_CACHE_LEN(pixbuf_cache) \
((pixbuf_cache->end_page - pixbuf_cache->start_page) + 1)
+#define MAX_PRELOADED_PAGES 3
+
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);
+ pixbuf_cache->start_page = -1;
+ pixbuf_cache->end_page = -1;
}
static void
g_free (pixbuf_cache->job_list);
g_free (pixbuf_cache->next_job);
+ g_object_unref (pixbuf_cache->model);
+
G_OBJECT_CLASS (ev_pixbuf_cache_parent_class)->finalize (object);
}
EvPixbufCache *
-ev_pixbuf_cache_new (GtkWidget *view,
- EvDocument *document)
+ev_pixbuf_cache_new (GtkWidget *view,
+ EvDocumentModel *model,
+ gsize max_size)
{
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;
+ pixbuf_cache->model = g_object_ref (model);
+ pixbuf_cache->document = ev_document_model_get_document (model);
+ pixbuf_cache->max_size = max_size;
return pixbuf_cache;
}
+void
+ev_pixbuf_cache_set_max_size (EvPixbufCache *pixbuf_cache,
+ gsize max_size)
+{
+ if (pixbuf_cache->max_size == max_size)
+ return;
+
+ if (pixbuf_cache->max_size > max_size)
+ ev_pixbuf_cache_clear (pixbuf_cache);
+ pixbuf_cache->max_size = max_size;
+}
+
static void
copy_job_to_job_info (EvJobRender *job_render,
CacheJobInfo *job_info,
CacheJobInfo *new_job_list,
CacheJobInfo *new_prev_job,
CacheJobInfo *new_next_job,
+ int new_preload_cache_size,
int start_page,
int end_page,
gint priority)
int page_offset;
gint new_priority;
- if (page < (start_page - pixbuf_cache->preload_cache_size) ||
- page > (end_page + pixbuf_cache->preload_cache_size)) {
+ if (page < (start_page - new_preload_cache_size) ||
+ page > (end_page + new_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));
+ page_offset = (page - (start_page - new_preload_cache_size));
g_assert (page_offset >= 0 &&
- page_offset < pixbuf_cache->preload_cache_size);
+ page_offset < new_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);
+ page_offset < new_preload_cache_size);
target_page = new_next_job + page_offset;
new_priority = EV_JOB_PRIORITY_LOW;
} else {
}
}
+static gsize
+ev_pixbuf_cache_get_page_size (EvPixbufCache *pixbuf_cache,
+ gint page_index,
+ gdouble scale,
+ gint rotation)
+{
+ gint width, height;
+
+ _get_page_size_for_scale_and_rotation (pixbuf_cache->document,
+ page_index, scale, rotation,
+ &width, &height);
+ return height * cairo_format_stride_for_width (CAIRO_FORMAT_RGB24, width);
+}
+
+static gint
+ev_pixbuf_cache_get_preload_size (EvPixbufCache *pixbuf_cache,
+ gint start_page,
+ gint end_page,
+ gdouble scale,
+ gint rotation)
+{
+ gsize range_size = 0;
+ gint new_preload_cache_size = 0;
+ gint i;
+ guint n_pages = ev_document_get_n_pages (pixbuf_cache->document);
+
+ /* Get the size of the current range */
+ for (i = start_page; i <= end_page; i++) {
+ range_size += ev_pixbuf_cache_get_page_size (pixbuf_cache, i, scale, rotation);
+ }
+
+ if (range_size >= pixbuf_cache->max_size)
+ return new_preload_cache_size;
+
+ i = 1;
+ while (((start_page - i > 0) || (end_page + i < n_pages)) &&
+ new_preload_cache_size < MAX_PRELOADED_PAGES) {
+ gsize page_size;
+ gboolean updated = FALSE;
+
+ if (end_page + i < n_pages) {
+ page_size = ev_pixbuf_cache_get_page_size (pixbuf_cache, end_page + i,
+ scale, rotation);
+ if (page_size + range_size <= pixbuf_cache->max_size) {
+ range_size += page_size;
+ new_preload_cache_size++;
+ updated = TRUE;
+ } else {
+ break;
+ }
+ }
+
+ if (start_page - i > 0) {
+ page_size = ev_pixbuf_cache_get_page_size (pixbuf_cache, start_page - i,
+ scale, rotation);
+ if (page_size + range_size <= pixbuf_cache->max_size) {
+ range_size += page_size;
+ if (!updated)
+ new_preload_cache_size++;
+ } else {
+ break;
+ }
+ }
+ i++;
+ }
+
+ return new_preload_cache_size;
+}
+
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;
- int i, page;
-
+ CacheJobInfo *new_prev_job = NULL;
+ CacheJobInfo *new_next_job = NULL;
+ gint new_preload_cache_size;
+ int i, page;
+ gdouble scale = ev_document_model_get_scale (pixbuf_cache->model);
+ gint rotation = ev_document_model_get_rotation (pixbuf_cache->model);
+
+ new_preload_cache_size = ev_pixbuf_cache_get_preload_size (pixbuf_cache,
+ start_page,
+ end_page,
+ scale,
+ rotation);
if (pixbuf_cache->start_page == start_page &&
- pixbuf_cache->end_page == end_page)
+ pixbuf_cache->end_page == end_page &&
+ pixbuf_cache->preload_cache_size == new_preload_cache_size)
return;
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);
+ if (new_preload_cache_size > 0) {
+ new_prev_job = g_new0 (CacheJobInfo, new_preload_cache_size);
+ new_next_job = g_new0 (CacheJobInfo, new_preload_cache_size);
+ }
/* We go through each job in the old cache and either clear it or move
* it to a new location. */
move_one_job (pixbuf_cache->prev_job + i,
pixbuf_cache, page,
new_job_list, new_prev_job, new_next_job,
+ new_preload_cache_size,
start_page, end_page, EV_JOB_PRIORITY_LOW);
}
page ++;
}
page = pixbuf_cache->start_page;
- for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) {
+ for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache) && page >= 0; i++) {
move_one_job (pixbuf_cache->job_list + i,
pixbuf_cache, page,
new_job_list, new_prev_job, new_next_job,
+ new_preload_cache_size,
start_page, end_page, EV_JOB_PRIORITY_URGENT);
page ++;
}
move_one_job (pixbuf_cache->next_job + i,
pixbuf_cache, page,
new_job_list, new_prev_job, new_next_job,
+ new_preload_cache_size,
start_page, end_page, EV_JOB_PRIORITY_LOW);
}
page ++;
g_free (pixbuf_cache->prev_job);
g_free (pixbuf_cache->next_job);
+ pixbuf_cache->preload_cache_size = new_preload_cache_size;
+
pixbuf_cache->job_list = new_job_list;
pixbuf_cache->prev_job = new_prev_job;
pixbuf_cache->next_job = new_next_job;
cairo_image_surface_get_height (job_info->surface) == height)
return;
+ /* Free old surfaces for non visible pages */
+ if (priority == EV_JOB_PRIORITY_LOW) {
+ if (job_info->surface) {
+ cairo_surface_destroy (job_info->surface);
+ job_info->surface = NULL;
+ }
+
+ if (job_info->selection) {
+ cairo_surface_destroy (job_info->selection);
+ job_info->selection = NULL;
+ }
+ }
+
add_job (pixbuf_cache, job_info, NULL,
width, height, page, rotation, scale,
priority);
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <math.h>
#include <glib/gstdio.h>
#include <glib/gi18n.h>
#define EV_TOOLBARS_FILENAME "evince-toolbar.xml"
#define MIN_SCALE 0.05409
-#define MAX_SCALE 4.0
+#define PAGE_CACHE_SIZE 52428800 /* 50MB */
#define MAX_RECENT_ITEM_LEN (40)
static void ev_window_media_player_key_pressed (EvWindow *window,
const gchar *key,
gpointer user_data);
+static void ev_window_update_max_min_scale (EvWindow *window);
static guint ev_window_n_copies = 0;
GtkAction *action;
ev_window->priv->setup_document_idle = 0;
-
+
ev_window_refresh_window_thumbnail (ev_window);
ev_window_set_page_mode (ev_window, PAGE_MODE_DOCUMENT);
g_object_unref (ev_window->priv->document);
ev_window->priv->document = g_object_ref (document);
+ ev_window_update_max_min_scale (ev_window);
+
ev_window_set_message_area (ev_window, NULL);
if (ev_document_get_n_pages (document) <= 0) {
g_free (menubar_accel_accel);
}
+static void
+ev_window_update_max_min_scale (EvWindow *window)
+{
+ gdouble dpi;
+ GtkAction *action;
+ gdouble min_width, min_height;
+ gdouble width, height;
+ gdouble max_scale;
+ gint rotation = ev_document_model_get_rotation (window->priv->model);
+
+ if (!window->priv->document)
+ return;
+
+ dpi = get_screen_dpi (window) / 72.0;
+
+ ev_document_get_min_page_size (window->priv->document, &min_width, &min_height);
+ width = (rotation == 0 || rotation == 180) ? min_width : min_height;
+ height = (rotation == 0 || rotation == 180) ? min_height : min_width;
+ max_scale = sqrt (PAGE_CACHE_SIZE / (width * dpi * 4 * height * dpi));
+
+ action = gtk_action_group_get_action (window->priv->action_group,
+ ZOOM_CONTROL_ACTION);
+ ephy_zoom_action_set_max_zoom_level (EPHY_ZOOM_ACTION (action), max_scale * dpi);
+
+ ev_document_model_set_min_scale (window->priv->model, MIN_SCALE * dpi);
+ ev_document_model_set_max_scale (window->priv->model, max_scale * dpi);
+}
+
static void
ev_window_screen_changed (GtkWidget *widget,
GdkScreen *old_screen)
{
EvWindow *window = EV_WINDOW (widget);
- EvWindowPrivate *priv = window->priv;
GdkScreen *screen;
- gdouble dpi;
screen = gtk_widget_get_screen (widget);
if (screen == old_screen)
return;
ev_window_setup_gtk_settings (window);
- dpi = get_screen_dpi (window);
- ev_document_model_set_min_scale (priv->model, MIN_SCALE * dpi / 72.0);
- ev_document_model_set_max_scale (priv->model, MAX_SCALE * dpi / 72.0);
+ ev_window_update_max_min_scale (window);
if (GTK_WIDGET_CLASS (ev_window_parent_class)->screen_changed) {
GTK_WIDGET_CLASS (ev_window_parent_class)->screen_changed (widget, old_screen);
ev_metadata_set_int (window->priv->metadata, "rotation",
rotation);
+ ev_window_update_max_min_scale (window);
ev_window_refresh_window_thumbnail (window);
}
EggToolbarsModel *toolbars_model;
GObject *mpkeys;
gchar *ui_path;
- gdouble dpi;
g_signal_connect (ev_window, "configure_event",
G_CALLBACK (window_configure_event_cb), NULL);
gtk_widget_show (ev_window->priv->view_box);
ev_window->priv->view = ev_view_new ();
+ ev_view_set_page_cache_size (EV_VIEW (ev_window->priv->view), PAGE_CACHE_SIZE);
ev_view_set_model (EV_VIEW (ev_window->priv->view), ev_window->priv->model);
- dpi = get_screen_dpi (ev_window);
- ev_document_model_set_min_scale (ev_window->priv->model, MIN_SCALE * dpi / 72.0);
- ev_document_model_set_max_scale (ev_window->priv->model, MAX_SCALE * dpi / 72.0);
+
ev_window->priv->password_view = ev_password_view_new (GTK_WINDOW (ev_window));
g_signal_connect_swapped (ev_window->priv->password_view,
"unlock",
https://www.fi.muni.cz/~kas/git / evince.git / commitdiff