Index: ChangeLog
===================================================================
RCS file: /cvs/gnome/evince/ChangeLog,v
retrieving revision 1.863
diff -u -u -r1.863 ChangeLog
--- ChangeLog	14 Aug 2006 23:12:28 -0000	1.863
+++ ChangeLog	15 Aug 2006 15:14:17 -0000
@@ -1,3 +1,10 @@
+2006-08-14  Carlos Garcia Campos  <carlosgc@gnome.org>
+
+	* shell/ev-sidebar-thumbnails.c:
+
+	Do not render thumbnails unless thumbnails page is active in the
+	sidebar.
+
 2006-08-14  Christian Persch  <chpe@cvs.gnome.org>
 
 	* shell/ev-properties-dialog.c:
Index: shell/ev-sidebar-thumbnails.c
===================================================================
RCS file: /cvs/gnome/evince/shell/ev-sidebar-thumbnails.c,v
retrieving revision 1.43
diff -u -u -r1.43 ev-sidebar-thumbnails.c
--- shell/ev-sidebar-thumbnails.c	29 May 2006 16:26:31 -0000	1.43
+++ shell/ev-sidebar-thumbnails.c	15 Aug 2006 15:14:18 -0000
@@ -59,6 +59,8 @@
 
 	int rotation;
 
+	gboolean visible;
+
 	/* Visible pages */
 	gint start_page, end_page;
 };
@@ -85,6 +87,7 @@
 static const gchar* ev_sidebar_thumbnails_get_label        (EvSidebarPage       *sidebar_page);
 static void         thumbnail_job_completed_callback       (EvJobThumbnail      *job,
 							    EvSidebarThumbnails *sidebar_thumbnails);
+static void         adjustment_changed_cb                  (EvSidebarThumbnails *sidebar_thumbnails);
 
 G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails, 
                         ev_sidebar_thumbnails, 
@@ -124,8 +127,7 @@
 {
 	EvSidebarThumbnails *sidebar = EV_SIDEBAR_THUMBNAILS (object);
 
-	switch (prop_id)
-	{
+	switch (prop_id) {
 	case PROP_WIDGET:
 		if (sidebar->priv->tree_view)
 			g_value_set_object (value, sidebar->priv->tree_view);
@@ -139,16 +141,46 @@
 }
 
 static void
+ev_sidebar_thumbnails_map (GtkWidget *widget)
+{
+	EvSidebarThumbnails *sidebar;
+
+	sidebar = EV_SIDEBAR_THUMBNAILS (widget);
+
+	sidebar->priv->visible = TRUE;
+	
+	GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->map (widget);
+	
+	adjustment_changed_cb (sidebar);
+}
+
+static void
+ev_sidebar_thumbnails_unmap (GtkWidget *widget)
+{
+	EvSidebarThumbnails *sidebar;
+
+	sidebar = EV_SIDEBAR_THUMBNAILS (widget);
+
+	sidebar->priv->visible = FALSE;
+	
+	GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->unmap (widget);
+}
+
+static void
 ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class)
 {
 	GObjectClass *g_object_class;
 	GtkObjectClass *gtk_object_class;
+	GtkWidgetClass *widget_class;
 
 	g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class);
 	gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_thumbnails_class);
+	widget_class = GTK_WIDGET_CLASS (ev_sidebar_thumbnails_class);
 
 	g_object_class->dispose = ev_sidebar_thumbnails_dispose;
 	g_object_class->get_property = ev_sidebar_thumbnails_get_property;
+	widget_class->map = ev_sidebar_thumbnails_map;
+	widget_class->unmap = ev_sidebar_thumbnails_unmap;
 
 	g_object_class_override_property (g_object_class,
 					  PROP_WIDGET,
@@ -290,6 +322,10 @@
 	gint wy1;
 	gint wy2;
 
+	/* Widget is not currently visible */
+	if (!priv->visible)
+		return;
+	
 	if (priv->tree_view) {
 		if (! GTK_WIDGET_REALIZED (priv->tree_view))
 			return;
@@ -449,6 +485,7 @@
 	GtkCellRenderer *renderer;
 
 	priv = ev_sidebar_thumbnails->priv;
+	priv->visible = FALSE;
 	priv->tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (priv->list_store));
 
 	selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));