Banshee.Widgets.SearchEntry.FramelessEntry.OnExposeEvent C# (CSharp) Метод

            protected override bool OnExposeEvent(Gdk.EventExpose evnt)
            {
                // The Entry's GdkWindow is the top level window onto which
                // the frame is drawn; the actual text entry is drawn into a
                // separate window, so we can ensure that for themes that don't
                // respect HasFrame, we never ever allow the base frame drawing
                // to happen
                if(evnt.Window == GdkWindow) {
                    return true;
                }

                bool ret = base.OnExposeEvent(evnt);

                if(text_gc == null || evnt.Window != text_window) {
                    text_window = evnt.Window;
                    RefreshGC();
                }

                if(Text.Length > 0 || HasFocus || parent.EmptyMessage == null) {
                    return ret;
                }

                int width, height;
                layout.SetMarkup(parent.EmptyMessage);
                layout.GetPixelSize(out width, out height);
                evnt.Window.DrawLayout(text_gc, 2, (SizeRequest().Height - height) / 2, layout);

                return ret;
            }