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: (168 commits)
  Remove enums from bitfield, since all compilers do not support them.
  Don't circumvent onDestruction handlers when clearing expression in delegate cleanup
  Fix responseText to check the charset encoding field and also to not
  Re-insert and emit the correct NOTIFY signals following the removal
  Fix poor flicking behavior with slower flicks.
  Alignment of shadow for rich text is broken when using text styles
  typo
  Setting one dimension of the sourceSize should set the other dimension.
  Document calling QObject methods from QML in Extending QML in C++ docs.
  Stabilize tst_qgraphicsscene
  QDeclarativeDebug: send a message when new object are added
  QDeclarativeEngineDebugServer:  make it a singleton.
  Fixed compile error in runonphone.
  Fix mispositioned text with QStaticText and OpenVG graphics system
  Use binarysort to find items.
  Use QImage 'convertInPlace' versions in QVGPixmapData load functions.
  QGraphicsView: Fix assert that may occurs if there are 'empty' item to draw, and changed() signal connected
  Added an install target to runonphone.
  Fix tst_Collections::QTBUG13079_collectionInsideCollection
  Fix few declarative code issues discovered by static code analysis
  ...

33 files changed, 551 insertions, 200 deletions

diff --git a/src/gui/dialogs/qfiledialog_mac.mm b/src/gui/dialogs/qfiledialog_mac.mm
index 64fc0ee..87850a7 100644
--- a/src/gui/dialogs/qfiledialog_mac.mm
+++ b/src/gui/dialogs/qfiledialog_mac.mm
@@ -119,6 +119,7 @@ QT_USE_NAMESPACE
 - (QString)removeExtensions:(const QString &)filter;
 - (void)createTextField;
 - (void)createPopUpButton:(const QString &)selectedFilter hideDetails:(BOOL)hideDetails;
+- (QStringList)findStrippedFilterWithVisualFilterName:(QString)name;
 - (void)createAccessory;
 
 @end
@@ -127,8 +128,6 @@ QT_USE_NAMESPACE
 
 - (id)initWithAcceptMode:(QT_PREPEND_NAMESPACE(QFileDialog::AcceptMode))acceptMode
     title:(const QString &)title
-    nameFilters:(const QStringList &)nameFilters
-    selectedNameFilter:(const QString &)selectedNameFilter
     hideNameFilterDetails:(bool)hideNameFilterDetails
     qDirFilter:(QT_PREPEND_NAMESPACE(QDir::Filters))qDirFilter
     fileOptions:(QT_PREPEND_NAMESPACE(QFileDialog::Options))fileOptions
@@ -158,8 +157,10 @@ QT_USE_NAMESPACE
     mPriv = priv;
     mLastFilterCheckPath = new QString;
     mQDirFilterEntryList = new QStringList;
-    mNameFilterDropDownList = new QStringList(nameFilters);
-    mSelectedNameFilter = new QStringList(qt_clean_filter_list(selectedNameFilter));
+    mNameFilterDropDownList = new QStringList(priv->nameFilters);
+    QString selectedVisualNameFilter = priv->qFileDialogUi->fileTypeCombo->currentText();
+    mSelectedNameFilter = new QStringList([self findStrippedFilterWithVisualFilterName:selectedVisualNameFilter]);
+
     QFileInfo sel(selectFile);
     if (sel.isDir()){
         mCurrentDir = [qt_mac_QStringToNSString(sel.absoluteFilePath()) retain];
@@ -168,8 +169,9 @@ QT_USE_NAMESPACE
         mCurrentDir = [qt_mac_QStringToNSString(sel.absolutePath()) retain];
         mCurrentSelection = new QString(sel.absoluteFilePath());
     }
+
     [mSavePanel setTitle:qt_mac_QStringToNSString(title)];
-    [self createPopUpButton:selectedNameFilter hideDetails:hideNameFilterDetails];
+    [self createPopUpButton:selectedVisualNameFilter hideDetails:hideNameFilterDetails];
     [self createTextField];
     [self createAccessory];
     [mSavePanel setAccessoryView:mNameFilterDropDownList->size() > 1 ? mAccessoryView : nil];
@@ -350,7 +352,7 @@ QT_USE_NAMESPACE
     // This mDelegate function is called when the _name_ filter changes.
     Q_UNUSED(sender);
     QString selection = mNameFilterDropDownList->value([mPopUpButton indexOfSelectedItem]);
-    *mSelectedNameFilter = QT_PREPEND_NAMESPACE(qt_clean_filter_list)(selection);
+    *mSelectedNameFilter = [self findStrippedFilterWithVisualFilterName:selection];
     [mSavePanel validateVisibleColumns];
     [self updateProperties];
     if (mPriv)
@@ -499,6 +501,15 @@ QT_USE_NAMESPACE
     }
 }
 
+- (QStringList) findStrippedFilterWithVisualFilterName:(QString)name
+{
+    for (int i=0; i<mNameFilterDropDownList->size(); ++i) {
+        if (mNameFilterDropDownList->at(i).startsWith(name))
+            return qt_clean_filter_list(mNameFilterDropDownList->at(i));
+    }
+    return QStringList();
+}
+
 - (void)createAccessory
 {
     NSRect accessoryRect = { { 0.0, 0.0 }, { 450.0, 33.0 } };
@@ -1039,8 +1050,6 @@ void QFileDialogPrivate::createNSOpenSavePanelDelegate()
     QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *delegate = [[QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) alloc]
         initWithAcceptMode:acceptMode
         title:q->windowTitle()
-        nameFilters:q->nameFilters()
-        selectedNameFilter:q->selectedNameFilter()
         hideNameFilterDetails:q->testOption(QFileDialog::HideNameFilterDetails)
         qDirFilter:model->filter()
         fileOptions:opts
diff --git a/src/gui/egl/qegl_x11.cpp b/src/gui/egl/qegl_x11.cpp
index fea6e8d..15cc109 100644
--- a/src/gui/egl/qegl_x11.cpp
+++ b/src/gui/egl/qegl_x11.cpp
@@ -165,7 +165,7 @@ VisualID QEgl::getCompatibleVisualId(EGLConfig config)
         if (chosenVisualInfo) {
             // Skip size checks if implementation supports non-matching visual
             // and config (http://bugreports.qt.nokia.com/browse/QTBUG-9444).
-            if (QEgl::hasExtension("EGL_NV_post_convert_replication"))
+            if (QEgl::hasExtension("EGL_NV_post_convert_rounding"))
                 return visualId;
 
             int visualRedSize = countBits(chosenVisualInfo->red_mask);
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index 6d1bb44..995426f 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -5126,7 +5126,9 @@ void QGraphicsScenePrivate::processDirtyItemsRecursive(QGraphicsItem *item, bool
                 q->update(itemBoundingRect.translated(item->d_ptr->sceneTransform.dx(),
                                                       item->d_ptr->sceneTransform.dy()));
             } else {
-                q->update(item->d_ptr->sceneTransform.mapRect(itemBoundingRect));
+                QRectF rect = item->d_ptr->sceneTransform.mapRect(itemBoundingRect);
+                if (!rect.isEmpty())
+                    q->update(rect);
             }
         } else {
             QRectF dirtyRect;
diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp
index 32560be..d568c40 100644
--- a/src/gui/graphicsview/qgraphicsview.cpp
+++ b/src/gui/graphicsview/qgraphicsview.cpp
@@ -2596,9 +2596,11 @@ void QGraphicsView::updateScene(const QList<QRectF> &rects)
 
     // Convert scene rects to viewport rects.
     foreach (const QRectF &rect, rects) {
-        QRect xrect = transform.mapRect(rect).toRect();
+        QRect xrect = transform.mapRect(rect).toAlignedRect();
         if (!(d->optimizationFlags & DontAdjustForAntialiasing))
             xrect.adjust(-2, -2, 2, 2);
+        else
+            xrect.adjust(-1, -1, 1, 1);
         if (!viewportRect.intersects(xrect))
             continue;
         dirtyViewportRects << xrect;
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index 051aa45..d5db431 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -830,15 +830,17 @@ bool QPixmap::load(const QString &fileName, const char *format, Qt::ImageConvers
         return false;
 
     QFileInfo info(fileName);
-    if (!info.exists())
-        return false;
-
     QString key = QLatin1Literal("qt_pixmap")
                   % info.absoluteFilePath()
                   % HexString<uint>(info.lastModified().toTime_t())
                   % HexString<quint64>(info.size())
                   % HexString<uint>(data ? data->pixelType() : QPixmapData::PixmapType);
 
+    // Note: If no extension is provided, we try to match the 
+    // file against known plugin extensions
+    if (!info.completeSuffix().isEmpty() && !info.exists())
+        return false;
+
     if (QPixmapCache::find(key, *this))
         return true;
 
diff --git a/src/gui/itemviews/qabstractitemview.cpp b/src/gui/itemviews/qabstractitemview.cpp
index 214c31f..12add05 100644
--- a/src/gui/itemviews/qabstractitemview.cpp
+++ b/src/gui/itemviews/qabstractitemview.cpp
@@ -2271,9 +2271,11 @@ void QAbstractItemView::keyPressEvent(QKeyEvent *event)
             } else {
                 d->selectionModel->setCurrentIndex(newCurrent, command);
                 d->pressedPosition = visualRect(newCurrent).center() + d->offset();
-                // We copy the same behaviour as for mousePressEvent().
-                QRect rect(d->pressedPosition - d->offset(), QSize(1, 1));
-                setSelection(rect, command);
+                if (newCurrent.isValid()) {
+                    // We copy the same behaviour as for mousePressEvent().
+                    QRect rect(d->pressedPosition - d->offset(), QSize(1, 1));
+                    setSelection(rect, command);
+                }
             }
             event->accept();
             return;
diff --git a/src/gui/kernel/qaction_p.h b/src/gui/kernel/qaction_p.h
index 899b01b..5764318 100644
--- a/src/gui/kernel/qaction_p.h
+++ b/src/gui/kernel/qaction_p.h
@@ -112,12 +112,12 @@ public:
     //for soft keys management
     uint forceEnabledInSoftkeys : 1;
     uint menuActionSoftkeys : 1;
-
-    QAction::MenuRole menuRole : 3;
-    QAction::SoftKeyRole softKeyRole : 2;
-    QAction::Priority priority : 14;
     int iconVisibleInMenu : 3;  // Only has values -1, 0, and 1
 
+    QAction::MenuRole menuRole;
+    QAction::SoftKeyRole softKeyRole;
+    QAction::Priority priority;
+
     QList<QWidget *> widgets;
 #ifndef QT_NO_GRAPHICSVIEW
     QList<QGraphicsWidget *> graphicsWidgets;
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index 028e3aa..d9c3b6a 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -1053,6 +1053,18 @@ QApplication::~QApplication()
     QApplicationPrivate::is_app_closing = true;
     QApplicationPrivate::is_app_running = false;
 
+    // delete all widgets
+    if (QWidgetPrivate::allWidgets) {
+        QWidgetSet *mySet = QWidgetPrivate::allWidgets;
+        QWidgetPrivate::allWidgets = 0;
+        for (QWidgetSet::ConstIterator it = mySet->constBegin(); it != mySet->constEnd(); ++it) {
+            register QWidget *w = *it;
+            if (!w->parent())                        // window
+                w->destroy(true, true);
+        }
+        delete mySet;
+    }
+
     delete qt_desktopWidget;
     qt_desktopWidget = 0;
 
@@ -1073,18 +1085,6 @@ QApplication::~QApplication()
     delete QWidgetPrivate::mapper;
     QWidgetPrivate::mapper = 0;
 
-    // delete all widgets
-    if (QWidgetPrivate::allWidgets) {
-        QWidgetSet *mySet = QWidgetPrivate::allWidgets;
-        QWidgetPrivate::allWidgets = 0;
-        for (QWidgetSet::ConstIterator it = mySet->constBegin(); it != mySet->constEnd(); ++it) {
-            register QWidget *w = *it;
-            if (!w->parent())                        // window
-                w->destroy(true, true);
-        }
-        delete mySet;
-    }
-
     delete QApplicationPrivate::app_pal;
     QApplicationPrivate::app_pal = 0;
     delete QApplicationPrivate::sys_pal;
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index 4ed00f8..5c1f29e 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -135,6 +135,38 @@ void QS60Data::setStatusPaneAndButtonGroupVisibility(bool statusPaneVisible, boo
 }
 #endif
 
+void QS60Data::controlVisibilityChanged(CCoeControl *control, bool visible)
+{
+    if (QWidgetPrivate::mapper && QWidgetPrivate::mapper->contains(control)) {
+        QWidget *const widget = QWidgetPrivate::mapper->value(control);
+        QWidget *const window = widget->window();
+        if (QTLWExtra *topData = qt_widget_private(window)->maybeTopData()) {
+            QWidgetBackingStoreTracker &backingStore = topData->backingStore;
+            if (visible) {
+                if (backingStore.data()) {
+                    backingStore.registerWidget(widget);
+                } else {
+#ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+                    S60->wsSession().SendEffectCommand(ETfxCmdRestoreLayer);
+#endif
+                    backingStore.create(window);
+                    backingStore.registerWidget(widget);
+                    qt_widget_private(widget)->invalidateBuffer(widget->rect());
+                    widget->repaint();
+                }
+            } else {
+#ifdef  SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+                S60->wsSession().SendEffectCommand(ETfxCmdDeallocateLayer);
+#endif
+                backingStore.unregisterWidget(widget);
+                // In order to ensure that any resources used by the window surface
+                // are immediately freed, we flush the WSERV command buffer.
+                S60->wsSession().Flush();
+            }
+        }
+    }
+}
+
 bool qt_nograb()                                // application no-grab option
 {
 #if defined(QT_DEBUG)
@@ -1075,17 +1107,19 @@ void QSymbianControl::Draw(const TRect& controlRect) const
         CFbsBitmap *bitmap = s60Surface->symbianBitmap();
         CWindowGc &gc = SystemGc();
 
-        switch(qwidget->d_func()->extraData()->nativePaintMode) {
+        QWExtra::NativePaintMode nativePaintMode = qwidget->d_func()->extraData()->nativePaintMode;
+        if(qwidget->d_func()->paintOnScreen())
+            nativePaintMode = QWExtra::Disable;
+
+        switch(nativePaintMode) {
         case QWExtra::Disable:
             // Do nothing
             break;
-
         case QWExtra::Blit:
             if (qwidget->d_func()->isOpaque)
                 gc.SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha);
             gc.BitBlt(controlRect.iTl, bitmap, backingStoreRect);
             break;
-
         case QWExtra::ZeroFill:
             if (Window().DisplayMode() == EColor16MA
                 || Window().DisplayMode() == Q_SYMBIAN_ECOLOR16MAP) {
@@ -1098,7 +1132,6 @@ void QSymbianControl::Draw(const TRect& controlRect) const
                 gc.Clear(controlRect);
             };
             break;
-
         default:
             Q_ASSERT(false);
         }
@@ -1475,6 +1508,8 @@ void qt_init(QApplicationPrivate * /* priv */, int)
             S60->avkonComponentsSupportTransparency = (value==1) ? true : false;
         }
     }
+    delete repository;
+    repository = 0;
 #endif
 
 #ifdef QT_KEYPAD_NAVIGATION
@@ -1920,35 +1955,10 @@ int QApplicationPrivate::symbianProcessWsEvent(const QSymbianEvent *symbianEvent
             if (callSymbianEventFilters(symbianEvent))
                 return 1;
             const TWsVisibilityChangedEvent *visChangedEvent = event->VisibilityChanged();
-            QWidget *w = QWidgetPrivate::mapper->value(control);
-            QWidget *const window = w->window();
-            if (!window->d_func()->maybeTopData())
-                break;
-            QRefCountedWidgetBackingStore &backingStore = window->d_func()->maybeTopData()->backingStore;
-            if (visChangedEvent->iFlags & TWsVisibilityChangedEvent::ENotVisible) {
-#ifdef  SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
-                S60->wsSession().SendEffectCommand(ETfxCmdDeallocateLayer);
-#endif
-                // Decrement backing store reference count
-                backingStore.deref();
-                // In order to ensure that any resources used by the window surface
-                // are immediately freed, we flush the WSERV command buffer.
-                S60->wsSession().Flush();
-            } else if (visChangedEvent->iFlags & TWsVisibilityChangedEvent::EPartiallyVisible) {
-                if (backingStore.data()) {
-                    // Increment backing store reference count
-                    backingStore.ref();
-                } else {
-#ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
-                    S60->wsSession().SendEffectCommand(ETfxCmdRestoreLayer);
-#endif
-                    // Create backing store with an initial reference count of 1
-                    backingStore.create(window);
-                    backingStore.ref();
-                    w->d_func()->invalidateBuffer(w->rect());
-                    w->repaint();
-                }
-            }
+            if (visChangedEvent->iFlags & TWsVisibilityChangedEvent::ENotVisible)
+                S60->controlVisibilityChanged(control, false);
+            else if (visChangedEvent->iFlags & TWsVisibilityChangedEvent::EPartiallyVisible)
+                S60->controlVisibilityChanged(control, true);
             return 1;
         }
         break;
diff --git a/src/gui/kernel/qclipboard_x11.cpp b/src/gui/kernel/qclipboard_x11.cpp
index 9fcc718..4b75f0a 100644
--- a/src/gui/kernel/qclipboard_x11.cpp
+++ b/src/gui/kernel/qclipboard_x11.cpp
@@ -456,7 +456,8 @@ QClipboard::QClipboard(QObject *parent)
         XCheckIfEvent(X11->display, &ev, &qt_init_timestamp_scanner, (XPointer)&data);
         if (data.timestamp == CurrentTime) {
             setupOwner();
-            int dummy = 0;
+            // We need this value just for completeness, we don't use it.
+            long dummy = 0;
             Window ownerId = owner->internalWinId();
             XChangeProperty(X11->display, ownerId,
                             ATOM(CLIP_TEMPORARY), XA_INTEGER, 32,
diff --git a/src/gui/kernel/qcocoamenuloader_mac.mm b/src/gui/kernel/qcocoamenuloader_mac.mm
index 8d65aa1..8d38f45 100644
--- a/src/gui/kernel/qcocoamenuloader_mac.mm
+++ b/src/gui/kernel/qcocoamenuloader_mac.mm
@@ -255,5 +255,10 @@ QT_USE_NAMESPACE
         qApp->quit();
     }
 }
+
+ - (void)orderFrontCharacterPalette:(id)sender
+ {
+     [NSApp orderFrontCharacterPalette:sender];
+ }
 @end
 #endif // QT_MAC_USE_COCOA
diff --git a/src/gui/kernel/qcocoamenuloader_mac_p.h b/src/gui/kernel/qcocoamenuloader_mac_p.h
index a75ad0a..edacfa5 100644
--- a/src/gui/kernel/qcocoamenuloader_mac_p.h
+++ b/src/gui/kernel/qcocoamenuloader_mac_p.h
@@ -88,6 +88,7 @@
 - (IBAction)hide:(id)sender;
 - (IBAction)qtDispatcherToQAction:(id)sender;
 - (void)qtUpdateMenubar;
+- (void)orderFrontCharacterPalette:(id)sender;
 @end
 
 #endif // QT_MAC_USE_COCOA
diff --git a/src/gui/kernel/qeventdispatcher_mac.mm b/src/gui/kernel/qeventdispatcher_mac.mm
index e26fbde..89f01d8 100644
--- a/src/gui/kernel/qeventdispatcher_mac.mm
+++ b/src/gui/kernel/qeventdispatcher_mac.mm
@@ -785,7 +785,7 @@ void QEventDispatcherMacPrivate::temporarilyStopAllModalSessions()
     // the stacking order of the windows while doing so, we put
     // up a block that is used in QCocoaWindow and QCocoaPanel:
     int stackSize = cocoaModalSessionStack.size();
-    for (int i=stackSize-1; i>=0; --i) {
+    for (int i=0; i<stackSize; ++i) {
         QCocoaModalSessionInfo &info = cocoaModalSessionStack[i];
         if (info.session) {
             [NSApp endModalSession:info.session];
@@ -822,12 +822,12 @@ NSModalSession QEventDispatcherMacPrivate::currentModalSession()
             QBoolBlocker block1(blockSendPostedEvents, true);
             info.nswindow = window;
             [(NSWindow*) info.nswindow retain];
-            // When creating a modal session cocoa will rearrange the windows.
-            // In order to avoid windows to be put behind another we need to
-            // keep the window level.
-            int level = [window level];
+            int levelBeforeEnterModal = [window level];
             info.session = [NSApp beginModalSessionForWindow:window];
-            [window setLevel:level];
+            // Make sure we don't stack the window lower that it was before
+            // entering modal, in case it e.g. had the stays-on-top flag set:
+            if (levelBeforeEnterModal > [window level])
+                [window setLevel:levelBeforeEnterModal];
         }
         currentModalSessionCached = info.session;
     }
diff --git a/src/gui/kernel/qgesturemanager.cpp b/src/gui/kernel/qgesturemanager.cpp
index fe9dd8a..e768a21 100644
--- a/src/gui/kernel/qgesturemanager.cpp
+++ b/src/gui/kernel/qgesturemanager.cpp
@@ -129,7 +129,12 @@ Qt::GestureType QGestureManager::registerGestureRecognizer(QGestureRecognizer *r
 void QGestureManager::unregisterGestureRecognizer(Qt::GestureType type)
 {
     QList<QGestureRecognizer *> list = m_recognizers.values(type);
-    m_recognizers.remove(type);
+    while (QGestureRecognizer *recognizer = m_recognizers.take(type)) {
+        if (!m_obsoleteGestures.contains(recognizer)) {
+            // inserting even an empty QSet will cause the recognizer to be deleted on destruction of the manager
+            m_obsoleteGestures.insert(recognizer, QSet<QGesture *>());
+        }
+    }
     foreach (QGesture *g, m_gestureToRecognizer.keys()) {
         QGestureRecognizer *recognizer = m_gestureToRecognizer.value(g);
         if (list.contains(recognizer)) {
diff --git a/src/gui/kernel/qt_s60_p.h b/src/gui/kernel/qt_s60_p.h
index a18ea07..ad6a99a 100644
--- a/src/gui/kernel/qt_s60_p.h
+++ b/src/gui/kernel/qt_s60_p.h
@@ -164,6 +164,7 @@ public:
     static inline CEikButtonGroupContainer* buttonGroupContainer();
     static void setStatusPaneAndButtonGroupVisibility(bool statusPaneVisible, bool buttonGroupVisible);
 #endif
+    static void controlVisibilityChanged(CCoeControl *control, bool visible);
 
 #ifdef Q_OS_SYMBIAN
     TTrapHandler *s60InstalledTrapHandler;
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 22123a0..0baecce 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -162,47 +162,76 @@ static inline bool hasBackingStoreSupport()
 extern bool qt_sendSpontaneousEvent(QObject*, QEvent*); // qapplication.cpp
 extern QDesktopWidget *qt_desktopWidget; // qapplication.cpp
 
+/*!
+    \internal
+    \class QWidgetBackingStoreTracker
+    \brief Class which allows tracking of which widgets are using a given backing store
+
+    QWidgetBackingStoreTracker is a thin wrapper around a QWidgetBackingStore pointer,
+    which maintains a list of the QWidgets which are currently using the backing
+    store.  This list is modified via the registerWidget and unregisterWidget functions.
+ */
 
-QRefCountedWidgetBackingStore::QRefCountedWidgetBackingStore()
+QWidgetBackingStoreTracker::QWidgetBackingStoreTracker()
     :   m_ptr(0)
-    ,   m_count(0)
 {
 
 }
 
-QRefCountedWidgetBackingStore::~QRefCountedWidgetBackingStore()
+QWidgetBackingStoreTracker::~QWidgetBackingStoreTracker()
 {
     delete m_ptr;
 }
 
-void QRefCountedWidgetBackingStore::create(QWidget *widget)
+/*!
+    \internal
+    Destroy the contained QWidgetBackingStore, if not null, and clear the list of
+    widgets using the backing store, then create a new QWidgetBackingStore, providing
+    the QWidget.
+ */
+void QWidgetBackingStoreTracker::create(QWidget *widget)
 {
     destroy();
     m_ptr = new QWidgetBackingStore(widget);
-    m_count = 0;
 }
 
-void QRefCountedWidgetBackingStore::destroy()
+/*!
+    \internal
+    Destroy the contained QWidgetBackingStore, if not null, and clear the list of
+    widgets using the backing store.
+ */
+void QWidgetBackingStoreTracker::destroy()
 {
     delete m_ptr;
     m_ptr = 0;
-    m_count = 0;
+    m_widgets.clear();
 }
 
-void QRefCountedWidgetBackingStore::ref()
+/*!
+    \internal
+    Add the widget to the list of widgets currently using the backing store.
+    If the widget was already in the list, this function is a no-op.
+ */
+void QWidgetBackingStoreTracker::registerWidget(QWidget *w)
 {
     Q_ASSERT(m_ptr);
-    ++m_count;
+    Q_ASSERT(w->internalWinId());
+    Q_ASSERT(qt_widget_private(w)->maybeBackingStore() == m_ptr);
+    m_widgets.insert(w);
 }
 
-void QRefCountedWidgetBackingStore::deref()
+/*!
+    \internal
+    Remove the widget from the list of widgets currently using the backing store.
+    If the widget was in the list, and removing it causes the list to be empty,
+    the backing store is deleted.
+    If the widget was not in the list, this function is a no-op.
+ */
+void QWidgetBackingStoreTracker::unregisterWidget(QWidget *w)
 {
-    if (m_count) {
-        Q_ASSERT(m_ptr);
-        if (0 == --m_count) {
-            delete m_ptr;
-            m_ptr = 0;
-        }
+    if (m_widgets.remove(w) && m_widgets.isEmpty()) {
+        delete m_ptr;
+        m_ptr = 0;
     }
 }
 
@@ -1245,7 +1274,16 @@ void QWidgetPrivate::init(QWidget *parentWidget, Qt::WindowFlags f)
     q->setAttribute(Qt::WA_WState_Hidden);
 
     //give potential windows a bigger "pre-initial" size; create_sys() will give them a new size later
+#ifdef Q_OS_SYMBIAN
+    if (isGLWidget) {
+        // Don't waste GPU mem for unnecessary large egl surface
+        data.crect = QRect(0,0,2,2);
+    } else {
+        data.crect = parentWidget ? QRect(0,0,100,30) : QRect(0,0,360,640);
+    }
+#else
     data.crect = parentWidget ? QRect(0,0,100,30) : QRect(0,0,640,480);
+#endif
 
     focus_next = focus_prev = q;
 
@@ -9934,7 +9972,7 @@ void QWidget::setParent(QWidget *parent, Qt::WindowFlags f)
         desktopWidget = parent;
     bool newParent = (parent != parentWidget()) || !wasCreated || desktopWidget;
 
-#if defined(Q_WS_X11) || defined(Q_WS_WIN) || defined(Q_WS_MAC)
+#if defined(Q_WS_X11) || defined(Q_WS_WIN) || defined(Q_WS_MAC) || defined(Q_OS_SYMBIAN)
     if (newParent && parent && !desktopWidget) {
         if (testAttribute(Qt::WA_NativeWindow) && !qApp->testAttribute(Qt::AA_DontCreateNativeWidgetSiblings))
             parent->d_func()->enforceNativeChildren();
@@ -10588,7 +10626,7 @@ void QWidget::setAttribute(Qt::WidgetAttribute attribute, bool on)
     }
     case Qt::WA_PaintOnScreen:
         d->updateIsOpaque();
-#if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined(Q_WS_MAC)
+#if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_OS_SYMBIAN)
         // Recreate the widget if it's already created as an alien widget and
         // WA_PaintOnScreen is enabled. Paint on screen widgets must have win id.
         // So must their children.
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index c499d93..ef7e1d3 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -2796,10 +2796,14 @@ void QWidgetPrivate::setSubWindowStacking(bool set)
 
     if (QWidget *parent = q->parentWidget()) {
         if (parent->testAttribute(Qt::WA_WState_Created)) {
-            if (set)
-                [qt_mac_window_for(parent) addChildWindow:qt_mac_window_for(q) ordered:NSWindowAbove];
-            else
+            if (set) {
+                if (parent->isVisible()) {
+                    NSWindow *childwin = qt_mac_window_for(q);
+                    [qt_mac_window_for(parent) addChildWindow:childwin ordered:NSWindowAbove];
+                }
+            } else {
                 [qt_mac_window_for(parent) removeChildWindow:qt_mac_window_for(q)];
+            }
         }
     }
 
@@ -2807,10 +2811,12 @@ void QWidgetPrivate::setSubWindowStacking(bool set)
     for (int i=0; i<widgets.size(); ++i) {
         QWidget *child = widgets.at(i);
         if (child->isWindow() && child->testAttribute(Qt::WA_WState_Created) && child->isVisibleTo(q)) {
-            if (set)
-                [qt_mac_window_for(q) addChildWindow:qt_mac_window_for(child) ordered:NSWindowAbove];
-            else
+            if (set) {
+                NSWindow *childwin = qt_mac_window_for(child);
+                [qt_mac_window_for(q) addChildWindow:childwin ordered:NSWindowAbove];
+            } else {
                 [qt_mac_window_for(q) removeChildWindow:qt_mac_window_for(child)];
+            }
         }
     }
 }
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index 9118919..c943bd8 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -110,17 +110,18 @@ class QWidgetItemV2;
 
 class QStyle;
 
-class Q_AUTOTEST_EXPORT QRefCountedWidgetBackingStore
+class Q_AUTOTEST_EXPORT QWidgetBackingStoreTracker
 {
+
 public:
-    QRefCountedWidgetBackingStore();
-    ~QRefCountedWidgetBackingStore();
+    QWidgetBackingStoreTracker();
+    ~QWidgetBackingStoreTracker();
 
     void create(QWidget *tlw);
     void destroy();
 
-    void ref();
-    void deref();
+    void registerWidget(QWidget *w);
+    void unregisterWidget(QWidget *w);
 
     inline QWidgetBackingStore* data()
     {
@@ -143,11 +144,11 @@ public:
     }
 
 private:
-    Q_DISABLE_COPY(QRefCountedWidgetBackingStore)
+    Q_DISABLE_COPY(QWidgetBackingStoreTracker)
 
 private:
     QWidgetBackingStore* m_ptr;
-    int m_count;
+    QSet<QWidget *> m_widgets;
 };
 
 struct QTLWExtra {
@@ -156,7 +157,7 @@ struct QTLWExtra {
     // Regular pointers (keep them together to avoid gaps on 64 bits architectures).
     QIcon *icon; // widget icon
     QPixmap *iconPixmap;
-    QRefCountedWidgetBackingStore backingStore;
+    QWidgetBackingStoreTracker backingStore;
     QWindowSurface *windowSurface;
     QPainter *sharedPainter;
 
diff --git a/src/gui/kernel/qwidget_s60.cpp b/src/gui/kernel/qwidget_s60.cpp
index 5075803..222d707 100644
--- a/src/gui/kernel/qwidget_s60.cpp
+++ b/src/gui/kernel/qwidget_s60.cpp
@@ -486,14 +486,13 @@ void QWidgetPrivate::show_sys()
              activateSymbianWindow();
 
          QSymbianControl *id = static_cast<QSymbianControl *>(q->internalWinId());
+         const bool isFullscreen = q->windowState() & Qt::WindowFullScreen;
 
 #ifdef Q_WS_S60
         // Lazily initialize the S60 screen furniture when the first window is shown.
-        if (!QApplication::testAttribute(Qt::AA_S60DontConstructApplicationPanes)
+        if (q->isWindow() && !QApplication::testAttribute(Qt::AA_S60DontConstructApplicationPanes)
                 && !S60->buttonGroupContainer() && !S60->statusPane()) {
 
-            bool isFullscreen = q->windowState() & Qt::WindowFullScreen;
-
             if (!q->testAttribute(Qt::WA_DontShowOnScreen)) {
 
                 // Create the status pane and CBA here
@@ -508,23 +507,24 @@ void QWidgetPrivate::show_sys()
                     // Can't use AppUi directly because it privately inherits from MEikStatusPaneObserver.
                     QSymbianControl *desktopControl = static_cast<QSymbianControl *>(QApplication::desktop()->winId());
                     S60->statusPane()->SetObserver(desktopControl);
-
-                    // Hide the status pane if fullscreen OR
-                    // Fill client area if maximized OR
-                    // Put window below status pane unless the window has an explicit position.
-                    if (isFullscreen) {
+                    if (isFullscreen)
                         S60->statusPane()->MakeVisible(false);
-                    } else if (q->windowState() & Qt::WindowMaximized) {
-                        TRect r = static_cast<CEikAppUi*>(S60->appUi())->ClientRect();
-                        id->SetExtent(r.iTl, r.Size());
-                    } else if (!q->testAttribute(Qt::WA_Moved)) {
-                        id->SetPosition(static_cast<CEikAppUi*>(S60->appUi())->ClientRect().iTl);
-                    }
                 }
             }
         }
 #endif
 
+        // Fill client area if maximized OR
+        // Put window below status pane unless the window has an explicit position.
+        if (!isFullscreen) {
+            if (q->windowState() & Qt::WindowMaximized) {
+                TRect r = static_cast<CEikAppUi*>(S60->appUi())->ClientRect();
+                id->SetExtent(r.iTl, r.Size());
+            } else if (!q->testAttribute(Qt::WA_Moved)) {
+                id->SetPosition(static_cast<CEikAppUi*>(S60->appUi())->ClientRect().iTl);
+            }
+        }
+
         id->MakeVisible(true);
 
         if(q->isWindow())
@@ -688,6 +688,12 @@ void QWidgetPrivate::setParent_sys(QWidget *parent, Qt::WindowFlags f)
     QSymbianControl *old_winid = static_cast<QSymbianControl *>(wasCreated ? data.winid : 0);
     if ((q->windowType() == Qt::Desktop))
         old_winid = 0;
+
+    // old_winid may not have received a 'not visible' visibility
+    // changed event before being destroyed; make sure that it is
+    // removed from the backing store's list of visible windows.
+    S60->controlVisibilityChanged(old_winid, false);
+
     setWinId(0);
 
     // hide and reparent our own window away. Otherwise we might get
diff --git a/src/gui/painting/painting.pri b/src/gui/painting/painting.pri
index dfa4a48..793d380 100644
--- a/src/gui/painting/painting.pri
+++ b/src/gui/painting/painting.pri
@@ -212,6 +212,7 @@ if(mmx|3dnow|sse|sse2|iwmmxt) {
     SSE3DNOW_SOURCES += painting/qdrawhelper_sse3dnow.cpp
     SSE_SOURCES += painting/qdrawhelper_sse.cpp
     SSE2_SOURCES += painting/qdrawhelper_sse2.cpp
+    SSSE3_SOURCES += painting/qdrawhelper_ssse3.cpp
     IWMMXT_SOURCES += painting/qdrawhelper_iwmmxt.cpp
 }
 
diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp
index 83751ed..ac9b994 100644
--- a/src/gui/painting/qbackingstore.cpp
+++ b/src/gui/painting/qbackingstore.cpp
@@ -352,7 +352,7 @@ void QWidgetBackingStore::beginPaint(QRegion &toClean, QWidget *widget, QWindowS
     // Always flush repainted areas.
     dirtyOnScreen += toClean;
 
-#ifdef Q_WS_QWS
+#if defined(Q_WS_QWS) && !defined(Q_BACKINGSTORE_SUBSURFACES)
     toClean.translate(tlwOffset);
 #endif
 
@@ -1294,7 +1294,12 @@ void QWidgetBackingStore::sync()
 #ifdef Q_BACKINGSTORE_SUBSURFACES
         QWindowSurface *subSurface = w->windowSurface();
         BeginPaintInfo beginPaintInfo;
-        beginPaint(toBePainted, w, subSurface, &beginPaintInfo, false);
+
+        QPoint off = w->mapTo(tlw, QPoint());
+        toBePainted.translate(off);
+        beginPaint(toBePainted, w, subSurface, &beginPaintInfo, true);
+        toBePainted.translate(-off);
+
         if (beginPaintInfo.nothingToPaint)
             continue;
 
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp
index 2184fef..c5704fb 100644
--- a/src/gui/painting/qdrawhelper.cpp
+++ b/src/gui/painting/qdrawhelper.cpp
@@ -7959,6 +7959,17 @@ void qInitDrawhelperAsm()
             qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_sse2;
             qBlendFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_sse2;
             qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_sse2;
+
+#if defined(QT_HAVE_SSSE3)
+            if (features & SSSE3) {
+                extern void qt_blend_argb32_on_argb32_ssse3(uchar *destPixels, int dbpl,
+                                                            const uchar *srcPixels, int sbpl,
+                                                            int w, int h,
+                                                            int const_alpha);
+                qBlendFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_ssse3;
+                qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_ssse3;
+            }
+#endif // QT_HAVE_SSSE3
         } else
 #endif
         {
diff --git a/src/gui/painting/qdrawhelper_ssse3.cpp b/src/gui/painting/qdrawhelper_ssse3.cpp
new file mode 100644
index 0000000..9c02009
--- /dev/null
+++ b/src/gui/painting/qdrawhelper_ssse3.cpp
@@ -0,0 +1,253 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#ifdef QT_HAVE_SSSE3
+
+#include <private/qsimd_p.h>
+#include <private/qdrawhelper_x86_p.h>
+#include <private/qdrawingprimitive_sse2_p.h>
+
+QT_BEGIN_NAMESPACE
+
+inline static void blend_pixel(quint32 &dst, const quint32 src)
+{
+    if (src >= 0xff000000)
+        dst = src;
+    else if (src != 0)
+        dst = src + BYTE_MUL(dst, qAlpha(~src));
+}
+
+
+/* The instruction palignr uses direct arguments, so we have to generate the code fo the different
+   shift (4, 8, 12). Checking the alignment inside the loop is unfortunatelly way too slow.
+ */
+#define BLENDING_LOOP(palignrOffset, length)\
+    for (; x < length-3; x += 4) { \
+        const __m128i srcVectorLastLoaded = _mm_load_si128((__m128i *)&src[x - minusOffsetToAlignSrcOn16Bytes + 4]);\
+        const __m128i srcVector = _mm_alignr_epi8(srcVectorLastLoaded, srcVectorPrevLoaded, palignrOffset); \
+        const __m128i srcVectorAlpha = _mm_and_si128(srcVector, alphaMask); \
+        if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, alphaMask)) == 0xffff) { \
+            _mm_store_si128((__m128i *)&dst[x], srcVector); \
+        } else if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, nullVector)) != 0xffff) { \
+            __m128i alphaChannel = _mm_shuffle_epi8(srcVector, alphaShuffleMask); \
+            alphaChannel = _mm_sub_epi16(one, alphaChannel); \
+            const __m128i dstVector = _mm_load_si128((__m128i *)&dst[x]); \
+            __m128i destMultipliedByOneMinusAlpha; \
+            BYTE_MUL_SSE2(destMultipliedByOneMinusAlpha, dstVector, alphaChannel, colorMask, half); \
+            const __m128i result = _mm_add_epi8(srcVector, destMultipliedByOneMinusAlpha); \
+            _mm_store_si128((__m128i *)&dst[x], result); \
+        } \
+        srcVectorPrevLoaded = srcVectorLastLoaded;\
+    }
+
+
+#define BLEND_SOURCE_OVER_ARGB32_FIRST_ROW_SSSE3(dst, src, length, nullVector, half, one, colorMask, alphaMask) { \
+    int x = 0; \
+\
+    /* First, get dst aligned. */ \
+    const int offsetToAlignOn16Bytes = (4 - ((reinterpret_cast<quintptr>(dst) >> 2) & 0x3)) & 0x3;\
+    const int prologLength = qMin(length, offsetToAlignOn16Bytes);\
+\
+    for (; x < prologLength; ++x) {\
+        blend_pixel(dst[x], src[x]); \
+    } \
+\
+    const int minusOffsetToAlignSrcOn16Bytes = (reinterpret_cast<quintptr>(&(src[x])) >> 2) & 0x3;\
+\
+    if (!minusOffsetToAlignSrcOn16Bytes) {\
+        /* src is aligned, usual algorithm but with aligned operations.\
+           See the SSE2 version for more documentation on the algorithm itself. */\
+        const __m128i alphaShuffleMask = _mm_set_epi8(0xff,15,0xff,15,0xff,11,0xff,11,0xff,7,0xff,7,0xff,3,0xff,3);\
+        for (; x < length-3; x += 4) { \
+            const __m128i srcVector = _mm_load_si128((__m128i *)&src[x]); \
+            const __m128i srcVectorAlpha = _mm_and_si128(srcVector, alphaMask); \
+            if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, alphaMask)) == 0xffff) { \
+                _mm_store_si128((__m128i *)&dst[x], srcVector); \
+            } else if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, nullVector)) != 0xffff) { \
+                __m128i alphaChannel = _mm_shuffle_epi8(srcVector, alphaShuffleMask); \
+                alphaChannel = _mm_sub_epi16(one, alphaChannel); \
+                const __m128i dstVector = _mm_load_si128((__m128i *)&dst[x]); \
+                __m128i destMultipliedByOneMinusAlpha; \
+                BYTE_MUL_SSE2(destMultipliedByOneMinusAlpha, dstVector, alphaChannel, colorMask, half); \
+                const __m128i result = _mm_add_epi8(srcVector, destMultipliedByOneMinusAlpha); \
+                _mm_store_si128((__m128i *)&dst[x], result); \
+            } \
+        } /* end for() */\
+    } else if ((length - x) >= 8) {\
+        /* We are at the first line, so "x - minusOffsetToAlignSrcOn16Bytes" could go before src, and\
+           generate an invalid access. */\
+\
+        /* We use two vectors to extract the src: prevLoaded for the first pixels, lastLoaded for the current pixels. */\
+        __m128i srcVectorPrevLoaded;\
+        if (minusOffsetToAlignSrcOn16Bytes > prologLength) {\
+            /* We go forward 4 pixels to avoid reading before src. */\
+            for (; x < prologLength + 4; ++x)\
+                blend_pixel(dst[x], src[x]); \
+        }\
+        srcVectorPrevLoaded = _mm_load_si128((__m128i *)&src[x - minusOffsetToAlignSrcOn16Bytes]);\
+        const int palignrOffset = minusOffsetToAlignSrcOn16Bytes << 2;\
+\
+        const __m128i alphaShuffleMask = _mm_set_epi8(0xff,15,0xff,15,0xff,11,0xff,11,0xff,7,0xff,7,0xff,3,0xff,3);\
+        switch (palignrOffset) {\
+        case 4:\
+            BLENDING_LOOP(4, length)\
+            break;\
+        case 8:\
+            BLENDING_LOOP(8, length)\
+            break;\
+        case 12:\
+            BLENDING_LOOP(12, length)\
+            break;\
+        }\
+    }\
+    for (; x < length; ++x) \
+        blend_pixel(dst[x], src[x]); \
+}
+
+// Basically blend src over dst with the const alpha defined as constAlphaVector.
+// nullVector, half, one, colorMask are constant accross the whole image/texture, and should be defined as:
+//const __m128i nullVector = _mm_set1_epi32(0);
+//const __m128i half = _mm_set1_epi16(0x80);
+//const __m128i one = _mm_set1_epi16(0xff);
+//const __m128i colorMask = _mm_set1_epi32(0x00ff00ff);
+//const __m128i alphaMask = _mm_set1_epi32(0xff000000);
+//
+// The computation being done is:
+// result = s + d * (1-alpha)
+// with shortcuts if fully opaque or fully transparent.
+#define BLEND_SOURCE_OVER_ARGB32_MAIN_SSSE3(dst, src, length, nullVector, half, one, colorMask, alphaMask) { \
+    int x = 0; \
+\
+    /* First, get dst aligned. */ \
+    ALIGNMENT_PROLOGUE_16BYTES(dst, x, length) { \
+        blend_pixel(dst[x], src[x]); \
+    } \
+\
+    const int minusOffsetToAlignSrcOn16Bytes = (reinterpret_cast<quintptr>(&(src[x])) >> 2) & 0x3;\
+\
+    if (!minusOffsetToAlignSrcOn16Bytes) {\
+        /* src is aligned, usual algorithm but with aligned operations.\
+           See the SSE2 version for more documentation on the algorithm itself. */\
+        const __m128i alphaShuffleMask = _mm_set_epi8(0xff,15,0xff,15,0xff,11,0xff,11,0xff,7,0xff,7,0xff,3,0xff,3);\
+        for (; x < length-3; x += 4) { \
+            const __m128i srcVector = _mm_load_si128((__m128i *)&src[x]); \
+            const __m128i srcVectorAlpha = _mm_and_si128(srcVector, alphaMask); \
+            if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, alphaMask)) == 0xffff) { \
+                _mm_store_si128((__m128i *)&dst[x], srcVector); \
+            } else if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, nullVector)) != 0xffff) { \
+                __m128i alphaChannel = _mm_shuffle_epi8(srcVector, alphaShuffleMask); \
+                alphaChannel = _mm_sub_epi16(one, alphaChannel); \
+                const __m128i dstVector = _mm_load_si128((__m128i *)&dst[x]); \
+                __m128i destMultipliedByOneMinusAlpha; \
+                BYTE_MUL_SSE2(destMultipliedByOneMinusAlpha, dstVector, alphaChannel, colorMask, half); \
+                const __m128i result = _mm_add_epi8(srcVector, destMultipliedByOneMinusAlpha); \
+                _mm_store_si128((__m128i *)&dst[x], result); \
+            } \
+        } /* end for() */\
+    } else if ((length - x) >= 8) {\
+        /* We use two vectors to extract the src: prevLoaded for the first pixels, lastLoaded for the current pixels. */\
+        __m128i srcVectorPrevLoaded = _mm_load_si128((__m128i *)&src[x - minusOffsetToAlignSrcOn16Bytes]);\
+        const int palignrOffset = minusOffsetToAlignSrcOn16Bytes << 2;\
+\
+        const __m128i alphaShuffleMask = _mm_set_epi8(0xff,15,0xff,15,0xff,11,0xff,11,0xff,7,0xff,7,0xff,3,0xff,3);\
+        switch (palignrOffset) {\
+        case 4:\
+            BLENDING_LOOP(4, length)\
+            break;\
+        case 8:\
+            BLENDING_LOOP(8, length)\
+            break;\
+        case 12:\
+            BLENDING_LOOP(12, length)\
+            break;\
+        }\
+    }\
+    for (; x < length; ++x) \
+        blend_pixel(dst[x], src[x]); \
+}
+
+void qt_blend_argb32_on_argb32_ssse3(uchar *destPixels, int dbpl,
+                                     const uchar *srcPixels, int sbpl,
+                                     int w, int h,
+                                     int const_alpha)
+{
+    const quint32 *src = (const quint32 *) srcPixels;
+    quint32 *dst = (quint32 *) destPixels;
+    if (const_alpha == 256) {
+        const __m128i alphaMask = _mm_set1_epi32(0xff000000);
+        const __m128i nullVector = _mm_setzero_si128();
+        const __m128i half = _mm_set1_epi16(0x80);
+        const __m128i one = _mm_set1_epi16(0xff);
+        const __m128i colorMask = _mm_set1_epi32(0x00ff00ff);
+
+        // We have to unrol the first row in order to deal with the load on unaligned data
+        // prior to the src pointer.
+        BLEND_SOURCE_OVER_ARGB32_FIRST_ROW_SSSE3(dst, src, w, nullVector, half, one, colorMask, alphaMask);
+        dst = (quint32 *)(((uchar *) dst) + dbpl);
+        src = (const quint32 *)(((const uchar *) src) + sbpl);
+
+        for (int y = 1; y < h; ++y) {
+            BLEND_SOURCE_OVER_ARGB32_MAIN_SSSE3(dst, src, w, nullVector, half, one, colorMask, alphaMask);
+            dst = (quint32 *)(((uchar *) dst) + dbpl);
+            src = (const quint32 *)(((const uchar *) src) + sbpl);
+        }
+    } else if (const_alpha != 0) {
+        // dest = (s + d * sia) * ca + d * cia
+        //      = s * ca + d * (sia * ca + cia)
+        //      = s * ca + d * (1 - sa*ca)
+        const_alpha = (const_alpha * 255) >> 8;
+        const __m128i nullVector = _mm_setzero_si128();
+        const __m128i half = _mm_set1_epi16(0x80);
+        const __m128i one = _mm_set1_epi16(0xff);
+        const __m128i colorMask = _mm_set1_epi32(0x00ff00ff);
+        const __m128i constAlphaVector = _mm_set1_epi16(const_alpha);
+        for (int y = 0; y < h; ++y) {
+            BLEND_SOURCE_OVER_ARGB32_WITH_CONST_ALPHA_SSE2(dst, src, w, nullVector, half, one, colorMask, constAlphaVector)
+            dst = (quint32 *)(((uchar *) dst) + dbpl);
+            src = (const quint32 *)(((const uchar *) src) + sbpl);
+        }
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_HAVE_SSSE3
diff --git a/src/gui/painting/qgrayraster.c b/src/gui/painting/qgrayraster.c
index 5e7c67a..94039fb 100644
--- a/src/gui/painting/qgrayraster.c
+++ b/src/gui/painting/qgrayraster.c
@@ -956,53 +956,49 @@
                               const QT_FT_Vector*  control2,
                               const QT_FT_Vector*  to )
   {
-    TPos        dx, dy, da, db;
     int         top, level;
     int*        levels;
     QT_FT_Vector*  arc;
+    int         mid_x = ( DOWNSCALE( ras.x ) + to->x +
+                          3 * (control1->x + control2->x ) ) / 8;
+    int         mid_y = ( DOWNSCALE( ras.y ) + to->y +
+                          3 * (control1->y + control2->y ) ) / 8;
+    TPos        dx = DOWNSCALE( ras.x ) + to->x - ( mid_x << 1 );
+    TPos        dy = DOWNSCALE( ras.y ) + to->y - ( mid_y << 1 );
 
 
-    dx = DOWNSCALE( ras.x ) + to->x - ( control1->x << 1 );
     if ( dx < 0 )
       dx = -dx;
-    dy = DOWNSCALE( ras.y ) + to->y - ( control1->y << 1 );
     if ( dy < 0 )
       dy = -dy;
     if ( dx < dy )
       dx = dy;
-    da = dx;
-
-    dx = DOWNSCALE( ras.x ) + to->x - 3 * ( control1->x + control2->x );
-    if ( dx < 0 )
-      dx = -dx;
-    dy = DOWNSCALE( ras.y ) + to->y - 3 * ( control1->x + control2->y );
-    if ( dy < 0 )
-      dy = -dy;
-    if ( dx < dy )
-      dx = dy;
-    db = dx;
 
     level = 1;
-    da    = da / ras.cubic_level;
-    db    = db / ras.conic_level;
-    while ( da > 0 || db > 0 )
+    dx /= ras.cubic_level;
+    while ( dx > 0 )
     {
-      da >>= 2;
-      db >>= 3;
+      dx >>= 2;
       level++;
     }
 
     if ( level <= 1 )
     {
-      TPos   to_x, to_y, mid_x, mid_y;
+      TPos   to_x, to_y;
 
 
       to_x  = UPSCALE( to->x );
       to_y  = UPSCALE( to->y );
+
+      /* Recalculation of midpoint is needed only if */
+      /* UPSCALE and DOWNSCALE have any effect.      */
+
+#if ( PIXEL_BITS != 6 )
       mid_x = ( ras.x + to_x +
                 3 * UPSCALE( control1->x + control2->x ) ) / 8;
       mid_y = ( ras.y + to_y +
                 3 * UPSCALE( control1->y + control2->y ) ) / 8;
+#endif
 
       gray_render_line( RAS_VAR_ mid_x, mid_y );
       gray_render_line( RAS_VAR_ to_x, to_y );
@@ -1359,10 +1355,6 @@
   /* <Input>                                                               */
   /*    outline        :: A pointer to the source target.                  */
   /*                                                                       */
-  /*    func_interface :: A table of `emitters', i.e,. function pointers   */
-  /*                      called during decomposition to indicate path     */
-  /*                      operations.                                      */
-  /*                                                                       */
   /*    user           :: A typeless pointer which is passed to each       */
   /*                      emitter during the decomposition.  It can be     */
   /*                      used to store the state during the               */
@@ -1373,15 +1365,10 @@
   /*                                                                       */
   static
   int  QT_FT_Outline_Decompose( const QT_FT_Outline*        outline,
-                             const QT_FT_Outline_Funcs*  func_interface,
                              void*                    user )
   {
 #undef SCALED
-#if 0
-#define SCALED( x )  ( ( (x) << shift ) - delta )
-#else
 #define SCALED( x )  (x)
-#endif
 
     QT_FT_Vector   v_last;
     QT_FT_Vector   v_control;
@@ -1396,12 +1383,6 @@
     int   error;
     char  tag;       /* current point's state           */
 
-#if 0
-    int   shift = func_interface->shift;
-    TPos  delta = func_interface->delta;
-#endif
-
-
     first = 0;
 
     for ( n = 0; n < outline->n_contours; n++ )
@@ -1455,7 +1436,7 @@
         tags--;
       }
 
-      error = func_interface->move_to( &v_start, user );
+      error = gray_move_to( &v_start, user );
       if ( error )
         goto Exit;
 
@@ -1475,7 +1456,7 @@
             vec.x = SCALED( point->x );
             vec.y = SCALED( point->y );
 
-            error = func_interface->line_to( &vec, user );
+            error = gray_line_to( &vec, user );
             if ( error )
               goto Exit;
             continue;
@@ -1502,7 +1483,7 @@
 
               if ( tag == QT_FT_CURVE_TAG_ON )
               {
-                error = func_interface->conic_to( &v_control, &vec,
+                error = gray_conic_to( &v_control, &vec,
                                                   user );
                 if ( error )
                   goto Exit;
@@ -1515,7 +1496,7 @@
               v_middle.x = ( v_control.x + vec.x ) / 2;
               v_middle.y = ( v_control.y + vec.y ) / 2;
 
-              error = func_interface->conic_to( &v_control, &v_middle,
+              error = gray_conic_to( &v_control, &v_middle,
                                                 user );
               if ( error )
                 goto Exit;
@@ -1524,7 +1505,7 @@
               goto Do_Conic;
             }
 
-            error = func_interface->conic_to( &v_control, &v_start,
+            error = gray_conic_to( &v_control, &v_start,
                                               user );
             goto Close;
           }
@@ -1555,20 +1536,20 @@
               vec.x = SCALED( point->x );
               vec.y = SCALED( point->y );
 
-              error = func_interface->cubic_to( &vec1, &vec2, &vec, user );
+              error = gray_cubic_to( &vec1, &vec2, &vec, user );
               if ( error )
                 goto Exit;
               continue;
             }
 
-            error = func_interface->cubic_to( &vec1, &vec2, &v_start, user );
+            error = gray_cubic_to( &vec1, &vec2, &v_start, user );
             goto Close;
           }
         }
       }
 
       /* close the contour with a line segment */
-      error = func_interface->line_to( &v_start, user );
+      error = gray_line_to( &v_start, user );
 
    Close:
       if ( error )
@@ -1596,22 +1577,11 @@
   static int
   gray_convert_glyph_inner( RAS_ARG )
   {
-    static
-    const QT_FT_Outline_Funcs  func_interface =
-    {
-      (QT_FT_Outline_MoveTo_Func) gray_move_to,
-      (QT_FT_Outline_LineTo_Func) gray_line_to,
-      (QT_FT_Outline_ConicTo_Func)gray_conic_to,
-      (QT_FT_Outline_CubicTo_Func)gray_cubic_to,
-      0,
-      0
-    };
-
     volatile int  error = 0;
 
     if ( qt_ft_setjmp( ras.jump_buffer ) == 0 )
     {
-      error = QT_FT_Outline_Decompose( &ras.outline, &func_interface, &ras );
+      error = QT_FT_Outline_Decompose( &ras.outline, &ras );
       gray_record_cell( RAS_VAR );
     }
     else
diff --git a/src/gui/painting/qpaintengine_x11.cpp b/src/gui/painting/qpaintengine_x11.cpp
index e521e01..fecf25f 100644
--- a/src/gui/painting/qpaintengine_x11.cpp
+++ b/src/gui/painting/qpaintengine_x11.cpp
@@ -696,10 +696,11 @@ void QX11PaintEngine::drawLines(const QLine *lines, int lineCount)
                 linef = d->matrix.map(QLineF(lines[i]));
             }
             if (clipLine(&linef, d->polygonClipper.boundingRect())) {
-                int x1 = qFloor(linef.x1() + aliasedCoordinateDelta);
-                int y1 = qFloor(linef.y1() + aliasedCoordinateDelta);
-                int x2 = qFloor(linef.x2() + aliasedCoordinateDelta);
-                int y2 = qFloor(linef.y2() + aliasedCoordinateDelta);
+                int x1 = qRound(linef.x1() + aliasedCoordinateDelta);
+                int y1 = qRound(linef.y1() + aliasedCoordinateDelta);
+                int x2 = qRound(linef.x2() + aliasedCoordinateDelta);
+                int y2 = qRound(linef.y2() + aliasedCoordinateDelta);
+
                 XDrawLine(d->dpy, d->hd, d->gc, x1, y1, x2, y2);
             }
         }
@@ -729,10 +730,11 @@ void QX11PaintEngine::drawLines(const QLineF *lines, int lineCount)
         for (int i = 0; i < lineCount; ++i) {
             QLineF linef = d->matrix.map(lines[i]);
             if (clipLine(&linef, d->polygonClipper.boundingRect())) {
-                int x1 = qFloor(linef.x1() + aliasedCoordinateDelta);
-                int y1 = qFloor(linef.y1() + aliasedCoordinateDelta);
-                int x2 = qFloor(linef.x2() + aliasedCoordinateDelta);
-                int y2 = qFloor(linef.y2() + aliasedCoordinateDelta);
+                int x1 = qRound(linef.x1() + aliasedCoordinateDelta);
+                int y1 = qRound(linef.y1() + aliasedCoordinateDelta);
+                int x2 = qRound(linef.x2() + aliasedCoordinateDelta);
+                int y2 = qRound(linef.y2() + aliasedCoordinateDelta);
+
                 XDrawLine(d->dpy, d->hd, d->gc, x1, y1, x2, y2);
             }
         }
@@ -1688,8 +1690,8 @@ void QX11PaintEnginePrivate::strokePolygon_dev(const QPointF *polygonPoints, int
     if (clippedCount > 0) {
         QVarLengthArray<XPoint> xpoints(clippedCount);
         for (int i = 0; i < clippedCount; ++i) {
-            xpoints[i].x = qFloor(clippedPoints[i].x + aliasedCoordinateDelta);
-            xpoints[i].y = qFloor(clippedPoints[i].y + aliasedCoordinateDelta);
+            xpoints[i].x = qRound(clippedPoints[i].x + aliasedCoordinateDelta);
+            xpoints[i].y = qRound(clippedPoints[i].y + aliasedCoordinateDelta);
         }
         uint numberPoints = qMin(clippedCount, xlibMaxLinePoints);
         XPoint *pts = xpoints.data();
@@ -1914,6 +1916,8 @@ void QX11PaintEngine::drawPixmap(const QRectF &r, const QPixmap &px, const QRect
     int sh = qRound(sr.height());
 
     QPixmap pixmap = qt_toX11Pixmap(px);
+    if(pixmap.isNull())
+        return;
 
     if ((d->xinfo && d->xinfo->screen() != pixmap.x11Info().screen())
         || (pixmap.x11Info().screen() != DefaultScreen(X11->display))) {
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index c0f195a..84befcf 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -5986,10 +5986,13 @@ void QPainter::drawStaticText(const QPointF &topLeftPosition, const QStaticText
         return;
     }
 
-    if (d->extended->type() == QPaintEngine::OpenGL2 && !staticText_d->untransformedCoordinates) {
+    bool paintEngineSupportsTransformations = d->extended->type() == QPaintEngine::OpenGL2
+                                           || d->extended->type() == QPaintEngine::OpenVG;
+
+    if (paintEngineSupportsTransformations && !staticText_d->untransformedCoordinates) {
         staticText_d->untransformedCoordinates = true;
         staticText_d->needsRelayout = true;
-    } else if (d->extended->type() != QPaintEngine::OpenGL2 && staticText_d->untransformedCoordinates) {
+    } else if (!paintEngineSupportsTransformations && staticText_d->untransformedCoordinates) {
         staticText_d->untransformedCoordinates = false;
         staticText_d->needsRelayout = true;
     }
diff --git a/src/gui/painting/qwindowsurface_qws.cpp b/src/gui/painting/qwindowsurface_qws.cpp
index a816ed2..170668b 100644
--- a/src/gui/painting/qwindowsurface_qws.cpp
+++ b/src/gui/painting/qwindowsurface_qws.cpp
@@ -882,7 +882,11 @@ void QWSMemorySurface::beginPaint(const QRegion &rgn)
         const QVector<QRect> rects = rgn.rects();
         const QColor blank = Qt::transparent;
         for (QVector<QRect>::const_iterator it = rects.begin(); it != rects.end(); ++it) {
-            p.fillRect(*it, blank);
+            QRect r = *it;
+#ifdef Q_BACKINGSTORE_SUBSURFACES
+            r.translate(painterOffset());
+#endif
+            p.fillRect(r, blank);
         }
     }
     QWSWindowSurface::beginPaint(rgn);
diff --git a/src/gui/text/qtextcontrol.cpp b/src/gui/text/qtextcontrol.cpp
index 32b1df9..441a8c8 100644
--- a/src/gui/text/qtextcontrol.cpp
+++ b/src/gui/text/qtextcontrol.cpp
@@ -1101,14 +1101,6 @@ void QTextControl::processEvent(QEvent *e, const QMatrix &matrix, QWidget *conte
                 }
             }
             break;
-        case QEvent::LayoutDirectionChange: {
-            if (contextWidget) {
-                QTextOption opt = document()->defaultTextOption();
-                opt.setTextDirection(contextWidget->layoutDirection());
-                document()->setDefaultTextOption(opt);
-            }
-        }
-            // FALL THROUGH
         default:
             break;
     }
diff --git a/src/gui/text/qtextobject.cpp b/src/gui/text/qtextobject.cpp
index e366f77..12a8924 100644
--- a/src/gui/text/qtextobject.cpp
+++ b/src/gui/text/qtextobject.cpp
@@ -1156,6 +1156,10 @@ Qt::LayoutDirection QTextBlock::textDirection() const
     if (dir != Qt::LayoutDirectionAuto)
         return dir;
 
+    dir = p->defaultTextOption.textDirection();
+    if (dir != Qt::LayoutDirectionAuto)
+        return dir;
+
     const QString buffer = p->buffer();
 
     const int pos = position();
diff --git a/src/gui/util/qcompleter.cpp b/src/gui/util/qcompleter.cpp
index 04d6de9..e718212 100644
--- a/src/gui/util/qcompleter.cpp
+++ b/src/gui/util/qcompleter.cpp
@@ -921,10 +921,12 @@ void QCompleterPrivate::showPopup(const QRect& rect)
 void QCompleterPrivate::_q_fileSystemModelDirectoryLoaded(const QString &path)
 {
     Q_Q(QCompleter);
+#ifndef QT_NO_LINEEDIT
     QLineEdit *lineEdit = qobject_cast<QLineEdit *>(widget);
     //the path given by QFileSystemModel does not end with /
     if (lineEdit && !lineEdit->text().isEmpty() && !q->completionPrefix().isEmpty() && q->completionPrefix() != path + QLatin1Char('/'))
         q->complete();
+#endif
 }
 
 /*!
diff --git a/src/gui/widgets/qcocoamenu_mac.mm b/src/gui/widgets/qcocoamenu_mac.mm
index ce85919..15fae23 100644
--- a/src/gui/widgets/qcocoamenu_mac.mm
+++ b/src/gui/widgets/qcocoamenu_mac.mm
@@ -188,6 +188,18 @@ QT_USE_NAMESPACE
     return NO;
 }
 
+- (NSInteger)indexOfItemWithTarget:(id)anObject andAction:(SEL)actionSelector
+{
+     NSInteger index = [super indexOfItemWithTarget:anObject andAction:actionSelector];
+     static SEL selForOFCP = NSSelectorFromString(@"orderFrontCharacterPalette:");
+     if (index == -1 && selForOFCP == actionSelector) {
+         // Check if the 'orderFrontCharacterPalette' SEL exists for QCocoaMenuLoader object
+         QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *loader = [NSApp QT_MANGLE_NAMESPACE(qt_qcocoamenuLoader)];
+         return [super indexOfItemWithTarget:loader andAction:actionSelector];
+     }
+     return index;
+}
+
 @end
 
 QT_BEGIN_NAMESPACE
diff --git a/src/gui/widgets/qcocoamenu_mac_p.h b/src/gui/widgets/qcocoamenu_mac_p.h
index d6ac8c5..1a42642 100644
--- a/src/gui/widgets/qcocoamenu_mac_p.h
+++ b/src/gui/widgets/qcocoamenu_mac_p.h
@@ -76,6 +76,7 @@ QT_FORWARD_DECLARE_CLASS(QAction)
 }
 - (id)initWithQMenu:(QMenu*)menu;
 - (BOOL)menuHasKeyEquivalent:(NSMenu *)menu forEvent:(NSEvent *)event target:(id *)target action:(SEL *)action;
+- (NSInteger)indexOfItemWithTarget:(id)anObject andAction:(SEL)actionSelector;
 @end
 #endif
 
diff --git a/src/gui/widgets/qdatetimeedit.h b/src/gui/widgets/qdatetimeedit.h
index 81bbdb9..d2f315a 100644
--- a/src/gui/widgets/qdatetimeedit.h
+++ b/src/gui/widgets/qdatetimeedit.h
@@ -206,7 +206,6 @@ private:
 class Q_GUI_EXPORT QTimeEdit : public QDateTimeEdit
 {
     Q_OBJECT
-    Q_PROPERTY(QTime time READ time WRITE setTime NOTIFY timeChanged USER true)
 public:
     QTimeEdit(QWidget *parent = 0);
     QTimeEdit(const QTime &time, QWidget *parent = 0);
@@ -215,7 +214,6 @@ public:
 class Q_GUI_EXPORT QDateEdit : public QDateTimeEdit
 {
     Q_OBJECT
-    Q_PROPERTY(QDate date READ date WRITE setDate NOTIFY dateChanged USER true)
 public:
     QDateEdit(QWidget *parent = 0);
     QDateEdit(const QDate &date, QWidget *parent = 0);