static MetaScreenBackground *
meta_screen_background_get (MetaScreen *screen)
{
MetaScreenBackground *background;
background = g_object_get_data (G_OBJECT (screen), "meta-screen-background");
if (background == NULL)
{
ClutterActor *stage;
background = g_new0 (MetaScreenBackground, 1);
background->screen = screen;
g_object_set_data_full (G_OBJECT (screen), "meta-screen-background",
background, (GDestroyNotify) free_screen_background);
stage = meta_get_stage_for_screen (screen);
g_signal_connect (stage, "notify::color",
G_CALLBACK (on_notify_stage_color), background);
meta_background_actor_update (screen);
}
return background;
}
static void
process_property_notify (MetaCompositor *compositor,
XPropertyEvent *event,
MetaWindow *window)
{
MetaWindowActor *window_actor;
if (event->atom == compositor->atom_x_root_pixmap)
{
GSList *l;
for (l = meta_display_get_screens (compositor->display); l; l = l->next)
{
MetaScreen *screen = l->data;
if (event->window == meta_screen_get_xroot (screen))
{
meta_background_actor_update (screen);
return;
}
}
}
if (window == NULL)
return;
window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
if (window_actor == NULL)
return;
/* Check for the opacity changing */
if (event->atom == compositor->atom_net_wm_window_opacity)
{
meta_window_actor_update_opacity (window_actor);
DEBUG_TRACE ("process_property_notify: net_wm_window_opacity\n");
return;
}
DEBUG_TRACE ("process_property_notify: unknown\n");
}
