[evince] ev-window: add new gsetting to set the page cache size

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 392d8e33fb1a85c09690b65b3ad0a709ca6fff77
Author: Jonas Danielsson <jonas threetimestwo org>
Date:   Fri May 17 14:58:01 2013 +0200

    ev-window: add new gsetting to set the page cache size
    
    https://bugzilla.gnome.org/show_bug.cgi?id=642683

 data/org.gnome.Evince.gschema.xml.in |    6 ++++++
 shell/ev-window.c                    |   23 +++++++++++++++++++++++
 2 files changed, 29 insertions(+), 0 deletions(-)
---
diff --git a/data/org.gnome.Evince.gschema.xml.in b/data/org.gnome.Evince.gschema.xml.in
index 6c0fdce..ecd3b62 100644
--- a/data/org.gnome.Evince.gschema.xml.in
+++ b/data/org.gnome.Evince.gschema.xml.in
@@ -25,6 +25,12 @@
       <default>nothing</default>
       <_summary>The URI of the directory last used to save a picture</_summary>
     </key>
+    <key name="page-cache-size" type="u">
+      <default>50</default>
+      <_summary>Page cache size in Mb</_summary>
+      <_description>The maximum size that will be used to cache rendered pages, limits maximum zoom 
level.</_description>
+    </key>
+
     <child name="default" schema="org.gnome.Evince.Default"/>
   </schema>
 
diff --git a/shell/ev-window.c b/shell/ev-window.c
index 13e3bb8..da1ce0c 100644
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -251,6 +251,7 @@ struct _EvWindowPrivate {
 
 #define GS_SCHEMA_NAME           "org.gnome.Evince"
 #define GS_OVERRIDE_RESTRICTIONS "override-restrictions"
+#define GS_PAGE_CACHE_SIZE       "page-cache-size"
 #define GS_AUTO_RELOAD           "auto-reload"
 #define GS_LAST_DOCUMENT_DIRECTORY "document-directory"
 #define GS_LAST_PICTURES_DIRECTORY "pictures-directory"
@@ -1255,6 +1256,18 @@ setup_view_from_metadata (EvWindow *window)
 }
 
 static void
+page_cache_size_changed (GSettings *settings,
+                        gchar     *key,
+                        EvWindow  *ev_window)
+{
+       guint page_cache_mb;
+
+       page_cache_mb = g_settings_get_uint (settings, GS_PAGE_CACHE_SIZE);
+       ev_view_set_page_cache_size (EV_VIEW (ev_window->priv->view),
+                                    page_cache_mb * 1024 * 1024);
+}
+
+static void
 ev_window_setup_default (EvWindow *ev_window)
 {
        EvDocumentModel *model = ev_window->priv->model;
@@ -1365,6 +1378,11 @@ ev_window_ensure_settings (EvWindow *ev_window)
                           "changed::"GS_OVERRIDE_RESTRICTIONS,
                           G_CALLBACK (override_restrictions_changed),
                           ev_window);
+        g_signal_connect (priv->settings,
+                         "changed::"GS_PAGE_CACHE_SIZE,
+                         G_CALLBACK (page_cache_size_changed),
+                         ev_window);
+
         return priv->settings;
 }
 
@@ -7035,6 +7053,7 @@ ev_window_init (EvWindow *ev_window)
        GtkWidget *sidebar_widget;
        GtkWidget *overlay;
        GObject *mpkeys;
+       guint page_cache_mb;
 #ifdef ENABLE_DBUS
        GDBusConnection *connection;
        static gint window_id = 0;
@@ -7292,6 +7311,10 @@ ev_window_init (EvWindow *ev_window)
        gtk_widget_show (ev_window->priv->view_box);
 
        ev_window->priv->view = ev_view_new ();
+       page_cache_mb = g_settings_get_uint (ev_window_ensure_settings (ev_window),
+                                            GS_PAGE_CACHE_SIZE);
+       ev_view_set_page_cache_size (EV_VIEW (ev_window->priv->view),
+                                    page_cache_mb * 1024 * 1024);
        ev_view_set_model (EV_VIEW (ev_window->priv->view), ev_window->priv->model);
 
        ev_window->priv->password_view = ev_password_view_new (GTK_WINDOW (ev_window));