--- a/src/gui/painting/qgraphicssystem_p.h	Tue Jul 06 15:10:48 2010 +0300
+++ b/src/gui/painting/qgraphicssystem_p.h	Wed Aug 18 10:37:55 2010 +0300
@@ -64,6 +64,7 @@
 {
 public:
     virtual QPixmapData *createPixmapData(QPixmapData::PixelType type) const = 0;
+    virtual QPixmapData *createPixmapData(QPixmapData *origin);
     virtual QWindowSurface *createWindowSurface(QWidget *widget) const = 0;
 
     virtual ~QGraphicsSystem() = 0;