1 files changed, 19 insertions, 15 deletions

diff --git a/src/gui/graphicsview/qgraphicsview_p.h b/src/gui/graphicsview/qgraphicsview_p.h
index 7bd9ecb918..38c3bca75b 100644
--- a/src/gui/graphicsview/qgraphicsview_p.h
+++ b/src/gui/graphicsview/qgraphicsview_p.h
@@ -62,6 +62,7 @@
 #include "qgraphicssceneevent.h"
 #include <QtGui/qstyleoption.h>
 #include <private/qabstractscrollarea_p.h>
+#include <private/qapplication_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -180,21 +181,24 @@ public:
 
     inline void dispatchPendingUpdateRequests()
     {
-#ifndef Q_WS_MAC
-        // QWidget::update() works slightly different on the Mac; it's not part of
-        // our backing store so it needs special threatment.
-        if (qt_widget_private(viewport)->paintOnScreen())
-            QCoreApplication::sendPostedEvents(viewport, QEvent::UpdateRequest);
-        else
-            QCoreApplication::sendPostedEvents(viewport->window(), QEvent::UpdateRequest);
-#else
-        // At this point either HIViewSetNeedsDisplay (Carbon) or setNeedsDisplay: YES (Cocoa)
-        // is called, which means there's a pending update request. We want to dispatch it
-        // now because otherwise graphics view updates would require two
-        // round-trips in the event loop before the item is painted.
-        extern void qt_mac_dispatchPendingUpdateRequests(QWidget *);
-        qt_mac_dispatchPendingUpdateRequests(viewport->window());
-#endif
+#ifdef Q_WS_MAC
+        // QWidget::update() works slightly different on the Mac without the raster engine;
+        // it's not part of our backing store so it needs special threatment.
+        if (QApplicationPrivate::graphics_system_name != QLatin1String("raster")) {
+            // At this point either HIViewSetNeedsDisplay (Carbon) or setNeedsDisplay: YES (Cocoa)
+            // is called, which means there's a pending update request. We want to dispatch it
+            // now because otherwise graphics view updates would require two
+            // round-trips in the event loop before the item is painted.
+            extern void qt_mac_dispatchPendingUpdateRequests(QWidget *);
+            qt_mac_dispatchPendingUpdateRequests(viewport->window());
+        } else
+#endif // !Q_WS_MAC
+        {
+            if (qt_widget_private(viewport)->paintOnScreen())
+                QCoreApplication::sendPostedEvents(viewport, QEvent::UpdateRequest);
+            else
+                QCoreApplication::sendPostedEvents(viewport->window(), QEvent::UpdateRequest);
+        }
     }
 
     void setUpdateClip(QGraphicsItem *);