Merge branch 'qt-master-from-4.7' of scm.dev.nokia.troll.no:qt/qt-integration into master-integration

* 'qt-master-from-4.7' of scm.dev.nokia.troll.no:qt/qt-integration:
  Add support for Qt::WA_TranslucentBackground with OpenVG on Symbian^3
  Crash fix when using the runtime graphics system on Symbian.

2 files changed, 13 insertions, 3 deletions

diff --git a/src/gui/painting/qwindowsurface_s60.cpp b/src/gui/painting/qwindowsurface_s60.cpp
index d4dcf7d..eb9eff2 100644
--- a/src/gui/painting/qwindowsurface_s60.cpp
+++ b/src/gui/painting/qwindowsurface_s60.cpp
@@ -102,9 +102,11 @@ QS60WindowSurface::~QS60WindowSurface()
             // Issue empty redraw to clear the UI surface
 
             QWidget *w = window();
-            RWindow *const window = static_cast<RWindow *>(w->winId()->DrawableWindow());
-            window->BeginRedraw();
-            window->EndRedraw();
+            if (w->testAttribute(Qt::WA_WState_Created)) {
+                RWindow *const window = static_cast<RWindow *>(w->winId()->DrawableWindow());
+                window->BeginRedraw();
+                window->EndRedraw();
+            }
         }
     }
 #endif
diff --git a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp
index 2c7c0b7..9674233 100644
--- a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp
+++ b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp
@@ -42,6 +42,9 @@
 #include "qgraphicssystem_vg_p.h"
 #include <QtOpenVG/private/qpixmapdata_vg_p.h>
 #include <QtOpenVG/private/qwindowsurface_vg_p.h>
+#if defined(Q_OS_SYMBIAN) && !defined(Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE)
+#include <QtGui/private/qwidget_p.h>
+#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -64,6 +67,11 @@ QPixmapData *QVGGraphicsSystem::createPixmapData(QPixmapData::PixelType type) co
 
 QWindowSurface *QVGGraphicsSystem::createWindowSurface(QWidget *widget) const
 {
+#if defined(Q_OS_SYMBIAN) && !defined(Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE)
+    QWidgetPrivate *d = qt_widget_private(widget);
+    if (!d->isOpaque && widget->testAttribute(Qt::WA_TranslucentBackground))
+        return d->createDefaultWindowSurface_sys();
+#endif
     return new QVGWindowSurface(widget);
 }