~voldyman/gala/scale-large-notification-icon

                 * Creates an actor showing the current contents of the given WindowActor.

                 *

                 * @param actor          The actor from which to create a shnapshot

                 * @param inner_rect The inner (actually visible) rectangle of the window

                 * @param outer_rect The outer (input region) rectangle of the window

                 *

                 * @return           A copy of the actor at that time or %NULL

                 */

                public static Clutter.Actor? get_window_actor_snapshot (Meta.WindowActor actor, Meta.Rectangle inner_rect, Meta.Rectangle outer_rect)

                {

                        var texture = actor.get_texture () as Meta.ShapedTexture;

 

                        if (texture == null)

                                return null;

 

                        var surface = texture.get_image ({

                                inner_rect.x - outer_rect.x,

                                inner_rect.y - outer_rect.y,

                                inner_rect.width,

                                inner_rect.height

                        });

 

                        if (surface == null)

                                return null;

 

                        var canvas = new Clutter.Canvas ();

                        var handler = canvas.draw.connect ((cr) => {

                                cr.set_source_surface (surface, 0, 0);

                                cr.paint ();

                                return false;

                        });

                        canvas.set_size (inner_rect.width, inner_rect.height);

                        SignalHandler.disconnect (canvas, handler);

 

                        var container = new Clutter.Actor ();

                        container.set_size (inner_rect.width, inner_rect.height);

                        container.content = canvas;

 

                        return container;

                }

 

                /**