Merge commit 'qt/master-stable'

Conflicts:
	config.tests/unix/openssl/openssl.pri
	demos/embedded/embedded.pro
	examples/itemviews/chart/chart.pro
	examples/network/network.pro
	examples/painting/painterpaths/painterpaths.pro
	examples/threads/mandelbrot/mandelbrot.pro
	qmake/project.cpp
	src/3rdparty/libtiff/libtiff/tif_config.h
	src/corelib/arch/arch.pri
	src/corelib/global/qglobal.cpp
	src/corelib/kernel/kernel.pri
	src/corelib/kernel/qcore_unix_p.h
	src/corelib/kernel/qobject.cpp
	src/corelib/thread/qthread_unix.cpp
	src/corelib/tools/qsharedpointer_impl.h
	src/corelib/tools/tools.pri
	src/gui/kernel/qaction.h
	src/gui/kernel/qapplication.cpp
	src/gui/painting/qregion.h
	src/gui/widgets/qlineedit.cpp
	src/gui/widgets/qlineedit_p.h
	src/network/socket/qnativesocketengine_unix.cpp
	tests/auto/qdir/tst_qdir.cpp
	tests/auto/qdiriterator/tst_qdiriterator.cpp
	tests/auto/qhttp/qhttp.pro
	tests/auto/qline/qline.pro
	tests/auto/qnetworkreply/tst_qnetworkreply.cpp
	tests/auto/qresourceengine/qresourceengine.pro
	tests/auto/qsharedpointer/qsharedpointer.pro
	tests/auto/qstring/qstring.pro
	tests/auto/qtcpsocket/qtcpsocket.pro
	tests/auto/qtcpsocket/tst_qtcpsocket.cpp

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gui/painting/qwindowsurface_raster.cpp b/src/gui/painting/qwindowsurface_raster.cpp
index 63b39b2..863237b 100644
--- a/src/gui/painting/qwindowsurface_raster.cpp
+++ b/src/gui/painting/qwindowsurface_raster.cpp
@@ -116,7 +116,7 @@ QPaintDevice *QRasterWindowSurface::paintDevice()
 void QRasterWindowSurface::beginPaint(const QRegion &rgn)
 {
 #if (defined(Q_WS_X11) && !defined(QT_NO_XRENDER)) || (defined(Q_WS_WIN) && !defined(Q_WS_WINCE))
-    if (!qt_widget_private(window())->isOpaque) {
+    if (!qt_widget_private(window())->isOpaque && window()->testAttribute(Qt::WA_TranslucentBackground)) {
 #if defined(Q_WS_WIN) && !defined(Q_WS_WINCE)
         if (d_ptr->image->image.format() != QImage::Format_ARGB32_Premultiplied)
             prepareBuffer(QImage::Format_ARGB32_Premultiplied, window());
@@ -147,7 +147,7 @@ void QRasterWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoi
     QRect br = rgn.boundingRect();
 
 #ifndef Q_WS_WINCE
-    if (!qt_widget_private(window())->isOpaque) {
+    if (!qt_widget_private(window())->isOpaque && window()->testAttribute(Qt::WA_TranslucentBackground)) {
         QRect r = window()->frameGeometry();
         QPoint frameOffset = qt_widget_private(window())->frameStrut().topLeft();
         QRect dirtyRect = br.translated(offset + frameOffset);