Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-doc-team into 4.7

47 files changed, 2130 insertions, 197 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 265029b..a36a276 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -417,6 +417,11 @@
     click focus to items underneath when being clicked on. This flag
     allows you create a non-focusable item that can be clicked on without
     changing the focus. \endomit
+
+    \omitvalue ItemStopsFocusHandling \omit Same as
+    ItemStopsClickFocusPropagation, but also suppresses focus-out. This flag
+    allows you to completely take over focus handling.
+    This flag was introduced in Qt 4.7.
 */
 
 /*!
@@ -5579,8 +5584,10 @@ void QGraphicsItemPrivate::setSubFocus(QGraphicsItem *rootItem, QGraphicsItem *s
         parent->d_ptr->subFocusItemChange();
     } while (!parent->isPanel() && (parent = parent->d_ptr->parent) && (visible || !parent->d_ptr->visible));
 
-    if (scene && !scene->isActive())
+    if (scene && !scene->isActive()) {
+        scene->d_func()->passiveFocusItem = subFocusItem;
         scene->d_func()->lastFocusItem = subFocusItem;
+    }
 }
 
 /*!
@@ -11551,6 +11558,9 @@ QDebug operator<<(QDebug debug, QGraphicsItem::GraphicsItemFlag flag)
     case QGraphicsItem::ItemStopsClickFocusPropagation:
         str = "ItemStopsClickFocusPropagation";
         break;
+    case QGraphicsItem::ItemStopsFocusHandling:
+        str = "ItemStopsFocusHandling";
+        break;
     }
     debug << str;
     return debug;
diff --git a/src/gui/graphicsview/qgraphicsitem.h b/src/gui/graphicsview/qgraphicsitem.h
index e59a7c9..67c9cd3 100644
--- a/src/gui/graphicsview/qgraphicsitem.h
+++ b/src/gui/graphicsview/qgraphicsitem.h
@@ -107,7 +107,8 @@ public:
         ItemIsPanel = 0x4000,
         ItemIsFocusScope = 0x8000, // internal
         ItemSendsScenePositionChanges = 0x10000,
-        ItemStopsClickFocusPropagation = 0x20000
+        ItemStopsClickFocusPropagation = 0x20000,
+        ItemStopsFocusHandling = 0x40000
         // NB! Don't forget to increase the d_ptr->flags bit field by 1 when adding a new flag.
     };
     Q_DECLARE_FLAGS(GraphicsItemFlags, GraphicsItemFlag)
diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h
index 5c82116..90ff43f 100644
--- a/src/gui/graphicsview/qgraphicsitem_p.h
+++ b/src/gui/graphicsview/qgraphicsitem_p.h
@@ -559,7 +559,7 @@ public:
     quint32 dirtyChildrenBoundingRect : 1;
 
     // Packed 32 bits
-    quint32 flags : 18;
+    quint32 flags : 19;
     quint32 paintedViewBoundingRectsNeedRepaint : 1;
     quint32 dirtySceneTransform : 1;
     quint32 geometryChanged : 1;
@@ -573,9 +573,9 @@ public:
     quint32 sceneTransformTranslateOnly : 1;
     quint32 notifyBoundingRectChanged : 1;
     quint32 notifyInvalidated : 1;
-    quint32 mouseSetsFocus : 1;
 
     // New 32 bits
+    quint32 mouseSetsFocus : 1;
     quint32 explicitActivate : 1;
     quint32 wantsActive : 1;
     quint32 holesInSiblingIndex : 1;
@@ -586,7 +586,7 @@ public:
     quint32 mayHaveChildWithGraphicsEffect : 1;
     quint32 isDeclarativeItem : 1;
     quint32 sendParentChangeNotification : 1;
-    quint32 padding : 22;
+    quint32 padding : 21;
 
     // Optional stacking order
     int globalStackingOrder;
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index f997fc2..85a4e16 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -306,6 +306,7 @@ QGraphicsScenePrivate::QGraphicsScenePrivate()
       rectAdjust(2),
       focusItem(0),
       lastFocusItem(0),
+      passiveFocusItem(0),
       tabFocusFirst(0),
       activePanel(0),
       lastActivePanel(0),
@@ -630,6 +631,8 @@ void QGraphicsScenePrivate::removeItemHelper(QGraphicsItem *item)
         focusItem = 0;
     if (item == lastFocusItem)
         lastFocusItem = 0;
+    if (item == passiveFocusItem)
+        passiveFocusItem = 0;
     if (item == activePanel) {
         // ### deactivate...
         activePanel = 0;
@@ -1317,8 +1320,10 @@ void QGraphicsScenePrivate::mousePressEventHandler(QGraphicsSceneMouseEvent *mou
 
     // Set focus on the topmost enabled item that can take focus.
     bool setFocus = false;
+
     foreach (QGraphicsItem *item, cachedItemsUnderMouse) {
-        if (item->isBlockedByModalPanel()) {
+        if (item->isBlockedByModalPanel()
+            || (item->d_ptr->flags & QGraphicsItem::ItemStopsFocusHandling)) {
             // Make sure we don't clear focus.
             setFocus = true;
             break;
@@ -1331,10 +1336,10 @@ void QGraphicsScenePrivate::mousePressEventHandler(QGraphicsSceneMouseEvent *mou
                 break;
             }
         }
-        if (item->d_ptr->flags & QGraphicsItem::ItemStopsClickFocusPropagation)
-            break;
         if (item->isPanel())
             break;
+        if (item->d_ptr->flags & QGraphicsItem::ItemStopsClickFocusPropagation)
+            break;
     }
 
     // Check for scene modality.
@@ -2980,7 +2985,7 @@ void QGraphicsScene::removeItem(QGraphicsItem *item)
 QGraphicsItem *QGraphicsScene::focusItem() const
 {
     Q_D(const QGraphicsScene);
-    return isActive() ? d->focusItem : d->lastFocusItem;
+    return isActive() ? d->focusItem : d->passiveFocusItem;
 }
 
 /*!
@@ -3054,6 +3059,7 @@ void QGraphicsScene::clearFocus()
     Q_D(QGraphicsScene);
     if (d->hasFocus) {
         d->hasFocus = false;
+        d->passiveFocusItem = d->focusItem;
         setFocusItem(0, Qt::OtherFocusReason);
     }
 }
@@ -3756,9 +3762,9 @@ void QGraphicsScene::focusInEvent(QFocusEvent *focusEvent)
             focusEvent->ignore();
         break;
     default:
-        if (d->lastFocusItem) {
+        if (d->passiveFocusItem) {
             // Set focus on the last focus item
-            setFocusItem(d->lastFocusItem, focusEvent->reason());
+            setFocusItem(d->passiveFocusItem, focusEvent->reason());
         }
         break;
     }
@@ -3777,6 +3783,7 @@ void QGraphicsScene::focusOutEvent(QFocusEvent *focusEvent)
 {
     Q_D(QGraphicsScene);
     d->hasFocus = false;
+    d->passiveFocusItem = d->focusItem;
     setFocusItem(0, focusEvent->reason());
 
     // Remove all popups when the scene loses focus.
@@ -5925,6 +5932,7 @@ bool QGraphicsScenePrivate::sendTouchBeginEvent(QGraphicsItem *origin, QTouchEve
 
     // Set focus on the topmost enabled item that can take focus.
     bool setFocus = false;
+
     foreach (QGraphicsItem *item, cachedItemsUnderMouse) {
         if (item->isEnabled() && ((item->flags() & QGraphicsItem::ItemIsFocusable) && item->d_ptr->mouseSetsFocus)) {
             if (!item->isWidget() || ((QGraphicsWidget *)item)->focusPolicy() & Qt::ClickFocus) {
@@ -5938,6 +5946,11 @@ bool QGraphicsScenePrivate::sendTouchBeginEvent(QGraphicsItem *origin, QTouchEve
             break;
         if (item->d_ptr->flags & QGraphicsItem::ItemStopsClickFocusPropagation)
             break;
+        if (item->d_ptr->flags & QGraphicsItem::ItemStopsFocusHandling) {
+            // Make sure we don't clear focus.
+            setFocus = true;
+            break;
+        }
     }
 
     // If nobody could take focus, clear it.
@@ -5970,7 +5983,8 @@ bool QGraphicsScenePrivate::sendTouchBeginEvent(QGraphicsItem *origin, QTouchEve
         }
         if (item && item->isPanel())
             break;
-        if (item && (item->d_ptr->flags & QGraphicsItem::ItemStopsClickFocusPropagation))
+        if (item && (item->d_ptr->flags
+                     & (QGraphicsItem::ItemStopsClickFocusPropagation | QGraphicsItem::ItemStopsFocusHandling)))
             break;
     }
 
diff --git a/src/gui/graphicsview/qgraphicsscene_p.h b/src/gui/graphicsview/qgraphicsscene_p.h
index 815c70b..2b47105 100644
--- a/src/gui/graphicsview/qgraphicsscene_p.h
+++ b/src/gui/graphicsview/qgraphicsscene_p.h
@@ -150,6 +150,7 @@ public:
     quint32 rectAdjust;
     QGraphicsItem *focusItem;
     QGraphicsItem *lastFocusItem;
+    QGraphicsItem *passiveFocusItem;
     QGraphicsWidget *tabFocusFirst;
     QGraphicsItem *activePanel;
     QGraphicsItem *lastActivePanel;
diff --git a/src/gui/image/image.pri b/src/gui/image/image.pri
index f89706c..00dccbe 100644
--- a/src/gui/image/image.pri
+++ b/src/gui/image/image.pri
@@ -28,7 +28,10 @@ HEADERS += \
         image/qpixmapdata_p.h \
         image/qpixmapdatafactory_p.h \
         image/qpixmapfilter_p.h \
-        image/qimagepixmapcleanuphooks_p.h
+        image/qimagepixmapcleanuphooks_p.h \
+        image/qvolatileimage_p.h \
+        image/qvolatileimagedata_p.h \
+        image/qnativeimagehandleprovider_p.h
 
 SOURCES += \
         image/qbitmap.cpp \
@@ -51,7 +54,8 @@ SOURCES += \
         image/qmovie.cpp \
         image/qpixmap_raster.cpp \
         image/qnativeimage.cpp \
-        image/qimagepixmapcleanuphooks.cpp
+        image/qimagepixmapcleanuphooks.cpp \
+        image/qvolatileimage.cpp
 
 win32 {
     SOURCES += image/qpixmap_win.cpp
@@ -72,6 +76,13 @@ else:symbian {
     SOURCES += image/qpixmap_s60.cpp
 }
 
+!symbian|contains(S60_VERSION, 3.1)|contains(S60_VERSION, 3.2) {
+    SOURCES += image/qvolatileimagedata.cpp
+}
+else {
+    SOURCES += image/qvolatileimagedata_symbian.cpp
+}
+
 # Built-in image format support
 HEADERS += \
         image/qbmphandler_p.h \
diff --git a/src/gui/image/qnativeimagehandleprovider_p.h b/src/gui/image/qnativeimagehandleprovider_p.h
new file mode 100644
index 0000000..4e6ed38
--- /dev/null
+++ b/src/gui/image/qnativeimagehandleprovider_p.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QNATIVEIMAGEHANDLEPROVIDER_P_H
+#define QNATIVEIMAGEHANDLEPROVIDER_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qstring.h>
+
+QT_BEGIN_NAMESPACE
+
+class QNativeImageHandleProvider
+{
+public:
+    virtual void get(void **handle, QString *type) = 0;
+    virtual void release(void *handle, const QString &type) = 0;
+};
+
+QT_END_NAMESPACE
+
+#endif // QNATIVEIMAGEHANDLEPROVIDER_P_H
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index 0aefafb..1a83318 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -1997,7 +1997,7 @@ void QPixmap::detach()
     }
 
     if (data->is_cached && data->ref == 1)
-        QImagePixmapCleanupHooks::executePixmapDataModificationHooks(pd);
+        QImagePixmapCleanupHooks::executePixmapDataModificationHooks(data.data());
 
 #if defined(Q_WS_MAC)
     QMacPixmapData *macData = id == QPixmapData::MacClass ? static_cast<QMacPixmapData*>(pd) : 0;
diff --git a/src/gui/image/qpixmap_raster.cpp b/src/gui/image/qpixmap_raster.cpp
index 368600f..5e0ffa8 100644
--- a/src/gui/image/qpixmap_raster.cpp
+++ b/src/gui/image/qpixmap_raster.cpp
@@ -380,6 +380,9 @@ int QRasterPixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const
 void QRasterPixmapData::createPixmapForImage(QImage &sourceImage, Qt::ImageConversionFlags flags, bool inPlace)
 {
     QImage::Format format;
+    if (flags & Qt::NoFormatConversion)
+        format = sourceImage.format();
+    else
 #ifdef Q_WS_QWS
     if (pixelType() == BitmapType) {
         format = QImage::Format_Mono;
diff --git a/src/gui/image/qpixmap_s60.cpp b/src/gui/image/qpixmap_s60.cpp
index ca5f133..32d8dd7 100644
--- a/src/gui/image/qpixmap_s60.cpp
+++ b/src/gui/image/qpixmap_s60.cpp
@@ -374,6 +374,8 @@ CFbsBitmap *QPixmap::toSymbianCFbsBitmap() const
     To be sure that QPixmap does not modify your original instance, you should
     make a copy of your \c CFbsBitmap before calling this function.
     If the CFbsBitmap is not valid this function will return a null QPixmap.
+    For performance reasons it is recommended to use a \a bitmap with a display
+    mode of EColor16MAP or EColor16MU whenever possible.
 
     \warning This function is only available on Symbian OS.
 
@@ -599,6 +601,9 @@ bool QS60PixmapData::scroll(int dx, int dy, const QRect &rect)
     return res;
 }
 
+Q_GUI_EXPORT int qt_defaultDpiX();
+Q_GUI_EXPORT int qt_defaultDpiY();
+
 int QS60PixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const
 {
     if (!cfbsBitmap)
@@ -609,28 +614,18 @@ int QS60PixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const
         return cfbsBitmap->SizeInPixels().iWidth;
     case QPaintDevice::PdmHeight:
         return cfbsBitmap->SizeInPixels().iHeight;
-    case QPaintDevice::PdmWidthMM: {
-        TInt twips = cfbsBitmap->SizeInTwips().iWidth;
-        return (int)(twips * (25.4/KTwipsPerInch));
-    }
-    case QPaintDevice::PdmHeightMM: {
-        TInt twips = cfbsBitmap->SizeInTwips().iHeight;
-        return (int)(twips * (25.4/KTwipsPerInch));
-    }
+    case QPaintDevice::PdmWidthMM:
+        return qRound(cfbsBitmap->SizeInPixels().iWidth * 25.4 / qt_defaultDpiX());
+    case QPaintDevice::PdmHeightMM:
+        return qRound(cfbsBitmap->SizeInPixels().iHeight * 25.4 / qt_defaultDpiY());
     case QPaintDevice::PdmNumColors:
         return TDisplayModeUtils::NumDisplayModeColors(cfbsBitmap->DisplayMode());
     case QPaintDevice::PdmDpiX:
-    case QPaintDevice::PdmPhysicalDpiX: {
-        TReal inches = cfbsBitmap->SizeInTwips().iWidth / (TReal)KTwipsPerInch;
-        TInt pixels = cfbsBitmap->SizeInPixels().iWidth;
-        return pixels / inches;
-    }
+    case QPaintDevice::PdmPhysicalDpiX:
+        return qt_defaultDpiX();
     case QPaintDevice::PdmDpiY:
-    case QPaintDevice::PdmPhysicalDpiY: {
-        TReal inches = cfbsBitmap->SizeInTwips().iHeight / (TReal)KTwipsPerInch;
-        TInt pixels = cfbsBitmap->SizeInPixels().iHeight;
-        return pixels / inches;
-    }
+    case QPaintDevice::PdmPhysicalDpiY:
+        return qt_defaultDpiY();
     case QPaintDevice::PdmDepth:
         return TDisplayModeUtils::NumDisplayModeBitsPerPixel(cfbsBitmap->DisplayMode());
     default:
diff --git a/src/gui/image/qpixmapdata_p.h b/src/gui/image/qpixmapdata_p.h
index 7699344..0d0d417 100644
--- a/src/gui/image/qpixmapdata_p.h
+++ b/src/gui/image/qpixmapdata_p.h
@@ -71,7 +71,9 @@ public:
 #if defined(Q_OS_SYMBIAN)
     enum NativeType {
         FbsBitmap,
-        SgImage
+        SgImage,
+        VolatileImage,
+        NativeImageHandleProvider
     };
 #endif
     enum ClassId { RasterClass, X11Class, MacClass, DirectFBClass,
diff --git a/src/gui/image/qvolatileimage.cpp b/src/gui/image/qvolatileimage.cpp
new file mode 100644
index 0000000..098e9a1
--- /dev/null
+++ b/src/gui/image/qvolatileimage.cpp
@@ -0,0 +1,318 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvolatileimage_p.h"
+#include "qvolatileimagedata_p.h"
+#include <QtGui/private/qpaintengine_raster_p.h>
+#include <QtGui/private/qpixmapdata_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QVolatileImagePaintEnginePrivate : public QRasterPaintEnginePrivate
+{
+public:
+    QVolatileImagePaintEnginePrivate() { }
+    QVolatileImage *img;
+};
+
+class QVolatileImagePaintEngine : public QRasterPaintEngine
+{
+    Q_DECLARE_PRIVATE(QVolatileImagePaintEngine)
+
+public:
+    QVolatileImagePaintEngine(QPaintDevice *device, QVolatileImage *img);
+    bool begin(QPaintDevice *device);
+    bool end();
+    void drawPixmap(const QPointF &p, const QPixmap &pm);
+    void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr);
+};
+
+QVolatileImage::QVolatileImage()
+    : d(new QVolatileImageData)
+{
+}
+
+QVolatileImage::QVolatileImage(int w, int h, QImage::Format format)
+    : d(new QVolatileImageData(w, h, format))
+{
+}
+
+QVolatileImage::QVolatileImage(const QImage &sourceImage)
+    : d(new QVolatileImageData(sourceImage))
+{
+}
+
+QVolatileImage::QVolatileImage(void *nativeImage, void *nativeMask)
+    : d(new QVolatileImageData(nativeImage, nativeMask))
+{
+}
+
+// Need non-inline, non-autogenerated copy ctor, dtor, op= to keep the
+// fwd declared QSharedData working.
+
+QVolatileImage::QVolatileImage(const QVolatileImage &other)
+    : d(other.d)
+{
+}
+
+QVolatileImage::~QVolatileImage()
+{
+}
+
+QVolatileImage &QVolatileImage::operator=(const QVolatileImage &rhs)
+{
+    d = rhs.d;
+    return *this;
+}
+
+bool QVolatileImage::isNull() const
+{
+    return d->image.isNull();
+}
+
+QImage::Format QVolatileImage::format() const
+{
+    return d->image.format();
+}
+
+int QVolatileImage::width() const
+{
+    return d->image.width();
+}
+
+int QVolatileImage::height() const
+{
+    return d->image.height();
+}
+
+int QVolatileImage::bytesPerLine() const
+{
+    return d->image.bytesPerLine();
+}
+
+int QVolatileImage::byteCount() const
+{
+    return d->image.byteCount();
+}
+
+int QVolatileImage::depth() const
+{
+    return d->image.depth();
+}
+
+bool QVolatileImage::hasAlphaChannel() const
+{
+    return d->image.hasAlphaChannel();
+}
+
+void QVolatileImage::beginDataAccess() const
+{
+    d->beginDataAccess();
+}
+
+void QVolatileImage::endDataAccess(bool readOnly) const
+{
+    d->endDataAccess(readOnly);
+}
+
+/*!
+  Access to pixel data via bits() or constBits() should be guarded by
+  begin/endDataAccess().
+ */
+uchar *QVolatileImage::bits()
+{
+    return d->image.bits();
+}
+
+const uchar *QVolatileImage::constBits() const
+{
+    return d->image.constBits();
+}
+
+bool QVolatileImage::ensureFormat(QImage::Format format)
+{
+    return d->ensureFormat(format);
+}
+
+/*!
+  This will always perform a copy of the pixel data.
+ */
+QImage QVolatileImage::toImage() const
+{
+    d->beginDataAccess();
+    QImage newImage = d->image.copy(); // no sharing allowed
+    d->endDataAccess(true);
+    return newImage;
+}
+
+/*!
+  Returns a reference to the image that is potentially using some native
+  buffer internally. Access to the image's pixel data should be guarded by
+  begin/endDataAccess(). Use it when there is a need for QImage APIs not provided
+  by this class. The returned QImage must never be shared or assigned to.
+  */
+QImage &QVolatileImage::imageRef() // non-const, in order to cause a detach
+{
+    d->ensureImage();
+    return d->image;
+}
+
+void *QVolatileImage::duplicateNativeImage() const
+{
+    return d->duplicateNativeImage();
+}
+
+void QVolatileImage::setAlphaChannel(const QPixmap &alphaChannel)
+{
+    ensureFormat(QImage::Format_ARGB32_Premultiplied);
+    beginDataAccess();
+    imageRef().setAlphaChannel(alphaChannel.toImage());
+    endDataAccess();
+    d->ensureImage();
+}
+
+void QVolatileImage::fill(uint pixelValue)
+{
+    beginDataAccess();
+    imageRef().fill(pixelValue);
+    endDataAccess();
+    d->ensureImage();
+}
+
+void QVolatileImage::copyFrom(QVolatileImage *source, const QRect &rect)
+{
+    if (source->isNull()) {
+        return;
+    }
+    QRect r = rect;
+    if (rect.isNull()) {
+        r = QRect(0, 0, source->width(), source->height());
+    }
+    source->beginDataAccess();
+    QImage &srcImgRef(source->imageRef());
+    int srcbpl = srcImgRef.bytesPerLine();
+    int srcbpp = srcImgRef.depth() / 8;
+    const uchar *sptr = srcImgRef.constBits() + r.y() * srcbpl;
+    beginDataAccess();
+    QImage &dstImgRef(imageRef());
+    int dstbpl = dstImgRef.bytesPerLine();
+    uchar *dptr = dstImgRef.bits();
+    for (int y = 0; y < r.height(); ++y) {
+        qMemCopy(dptr, sptr + r.x() * srcbpp, r.width() * srcbpp);
+        sptr += srcbpl;
+        dptr += dstbpl;
+    }
+    endDataAccess();
+    source->endDataAccess(true);
+}
+
+/*!
+    To be called from the PixmapData's paintEngine().
+  */
+QPaintEngine *QVolatileImage::paintEngine()
+{
+    if (!d->pengine) {
+        d->pengine = new QVolatileImagePaintEngine(&imageRef(), this);
+    }
+    return d->pengine;
+}
+
+QVolatileImagePaintEngine::QVolatileImagePaintEngine(QPaintDevice *device,
+                                                             QVolatileImage *img)
+    : QRasterPaintEngine(*(new QVolatileImagePaintEnginePrivate), device)
+{
+    Q_D(QVolatileImagePaintEngine);
+    d->img = img;
+}
+
+bool QVolatileImagePaintEngine::begin(QPaintDevice *device)
+{
+    Q_D(QVolatileImagePaintEngine);
+    d->img->beginDataAccess();
+    return QRasterPaintEngine::begin(device);
+}
+
+bool QVolatileImagePaintEngine::end()
+{
+    Q_D(QVolatileImagePaintEngine);
+    bool ret = QRasterPaintEngine::end();
+    d->img->endDataAccess();
+    return ret;
+}
+
+// For non-RasterClass pixmaps drawPixmap() would call toImage() which is slow in
+// our case. Therefore drawPixmap() is rerouted to drawImage().
+
+void QVolatileImagePaintEngine::drawPixmap(const QPointF &p, const QPixmap &pm)
+{
+#ifdef Q_OS_SYMBIAN
+    void *nativeData = pm.pixmapData()->toNativeType(QPixmapData::VolatileImage);
+    if (nativeData) {
+        QVolatileImage *img = static_cast<QVolatileImage *>(nativeData);
+        img->beginDataAccess();
+        QRasterPaintEngine::drawImage(p, img->imageRef());
+        img->endDataAccess(true);
+    } else {
+        QRasterPaintEngine::drawPixmap(p, pm);
+    }
+#else
+    QRasterPaintEngine::drawPixmap(p, pm);
+#endif
+}
+
+void QVolatileImagePaintEngine::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr)
+{
+#ifdef Q_OS_SYMBIAN
+    void *nativeData = pm.pixmapData()->toNativeType(QPixmapData::VolatileImage);
+    if (nativeData) {
+        QVolatileImage *img = static_cast<QVolatileImage *>(nativeData);
+        img->beginDataAccess();
+        QRasterPaintEngine::drawImage(r, img->imageRef(), sr);
+        img->endDataAccess(true);
+    } else {
+        QRasterPaintEngine::drawPixmap(r, pm, sr);
+    }
+#else
+    QRasterPaintEngine::drawPixmap(r, pm, sr);
+#endif
+}
+
+QT_END_NAMESPACE
diff --git a/src/gui/image/qvolatileimage_p.h b/src/gui/image/qvolatileimage_p.h
new file mode 100644
index 0000000..fc5d6b1
--- /dev/null
+++ b/src/gui/image/qvolatileimage_p.h
@@ -0,0 +1,101 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QVOLATILEIMAGE_P_H
+#define QVOLATILEIMAGE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/qimage.h>
+#include <QtCore/qshareddata.h>
+
+QT_BEGIN_NAMESPACE
+
+class QVolatileImageData;
+
+class Q_GUI_EXPORT QVolatileImage
+{
+public:
+    QVolatileImage();
+    QVolatileImage(int w, int h, QImage::Format format);
+    explicit QVolatileImage(const QImage &sourceImage);
+    explicit QVolatileImage(void *nativeImage, void *nativeMask = 0);
+    QVolatileImage(const QVolatileImage &other);
+    ~QVolatileImage();
+    QVolatileImage &operator=(const QVolatileImage &rhs);
+
+    bool isNull() const;
+    QImage::Format format() const;
+    int width() const;
+    int height() const;
+    int bytesPerLine() const;
+    int byteCount() const;
+    int depth() const;
+    bool hasAlphaChannel() const;
+    void beginDataAccess() const;
+    void endDataAccess(bool readOnly = false) const;
+    uchar *bits();
+    const uchar *constBits() const;
+    bool ensureFormat(QImage::Format format);
+    QImage toImage() const;
+    QImage &imageRef();
+    QPaintEngine *paintEngine();
+    void setAlphaChannel(const QPixmap &alphaChannel);
+    void fill(uint pixelValue);
+    void *duplicateNativeImage() const;
+    void copyFrom(QVolatileImage *source, const QRect &rect);
+
+private:
+    QSharedDataPointer<QVolatileImageData> d;
+};
+
+QT_END_NAMESPACE
+
+#endif // QVOLATILEIMAGE_P_H
diff --git a/src/gui/image/qvolatileimagedata.cpp b/src/gui/image/qvolatileimagedata.cpp
new file mode 100644
index 0000000..51b5995
--- /dev/null
+++ b/src/gui/image/qvolatileimagedata.cpp
@@ -0,0 +1,113 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvolatileimagedata_p.h"
+#include <QtGui/qpaintengine.h>
+
+QT_BEGIN_NAMESPACE
+
+QVolatileImageData::QVolatileImageData()
+    : pengine(0)
+{
+}
+
+QVolatileImageData::QVolatileImageData(int w, int h, QImage::Format format)
+    : pengine(0)
+{
+    image = QImage(w, h, format);
+}
+
+QVolatileImageData::QVolatileImageData(const QImage &sourceImage)
+    : pengine(0)
+{
+    image = sourceImage;
+}
+
+QVolatileImageData::QVolatileImageData(void *, void *)
+    : pengine(0)
+{
+    // Not supported.
+}
+
+QVolatileImageData::QVolatileImageData(const QVolatileImageData &other)
+{
+    image = other.image;
+    // The detach is not mandatory here but we do it nonetheless in order to
+    // keep the behavior consistent with other platforms.
+    image.detach();
+    pengine = 0;
+}
+
+QVolatileImageData::~QVolatileImageData()
+{
+    delete pengine;
+}
+
+void QVolatileImageData::beginDataAccess() const
+{
+    // nothing to do here
+}
+
+void QVolatileImageData::endDataAccess(bool readOnly) const
+{
+    Q_UNUSED(readOnly);
+    // nothing to do here
+}
+
+bool QVolatileImageData::ensureFormat(QImage::Format format)
+{
+    if (image.format() != format) {
+        image = image.convertToFormat(format);
+    }
+    return true;
+}
+
+void *QVolatileImageData::duplicateNativeImage() const
+{
+    return 0;
+}
+
+void QVolatileImageData::ensureImage()
+{
+    // nothing to do here
+}
+
+QT_END_NAMESPACE
diff --git a/src/gui/image/qvolatileimagedata_p.h b/src/gui/image/qvolatileimagedata_p.h
new file mode 100644
index 0000000..dab1685
--- /dev/null
+++ b/src/gui/image/qvolatileimagedata_p.h
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QVOLATILEIMAGEDATA_P_H
+#define QVOLATILEIMAGEDATA_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/qimage.h>
+#include <QtCore/qshareddata.h>
+
+#ifdef Q_OS_SYMBIAN
+class CFbsBitmap;
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QVolatileImageData : public QSharedData
+{
+public:
+    QVolatileImageData();
+    QVolatileImageData(int w, int h, QImage::Format format);
+    QVolatileImageData(const QImage &sourceImage);
+    QVolatileImageData(void *nativeImage, void *nativeMask);
+    QVolatileImageData(const QVolatileImageData &other);
+    ~QVolatileImageData();
+
+    void beginDataAccess() const;
+    void endDataAccess(bool readOnly = false) const;
+    bool ensureFormat(QImage::Format format);
+    void *duplicateNativeImage() const;
+    void ensureImage();
+
+#ifdef Q_OS_SYMBIAN
+    void updateImage();
+    void initWithBitmap(CFbsBitmap *source);
+    void applyMask(CFbsBitmap *mask);
+    void ensureBitmap();
+    void release();
+    QVolatileImageData *next;
+    QVolatileImageData *prev;
+    CFbsBitmap *bitmap;
+#endif
+    QImage image;
+    QPaintEngine *pengine;
+};
+
+QT_END_NAMESPACE
+
+#endif // QVOLATILEIMAGEDATA_P_H
diff --git a/src/gui/image/qvolatileimagedata_symbian.cpp b/src/gui/image/qvolatileimagedata_symbian.cpp
new file mode 100644
index 0000000..6e2909b
--- /dev/null
+++ b/src/gui/image/qvolatileimagedata_symbian.cpp
@@ -0,0 +1,474 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvolatileimagedata_p.h"
+#include <fbs.h>
+#include <QtGui/private/qt_s60_p.h>
+#include <QtGui/qpaintengine.h>
+#include <QtGui/private/qimage_p.h>
+
+QT_BEGIN_NAMESPACE
+
+static CFbsBitmap *rasterizeBitmap(CFbsBitmap *bitmap, TDisplayMode newMode)
+{
+    if (!bitmap) {
+        return 0;
+    }
+    QScopedPointer<CFbsBitmap> newBitmap(new CFbsBitmap);
+    if (newBitmap->Create(bitmap->SizeInPixels(), newMode) != KErrNone) {
+        qWarning("QVolatileImage: Failed to create new bitmap");
+        return 0;
+    }
+    CFbsBitmapDevice *bitmapDevice = 0;
+    CFbsBitGc *bitmapGc = 0;
+    QT_TRAP_THROWING(bitmapDevice = CFbsBitmapDevice::NewL(newBitmap.data()));
+    QScopedPointer<CFbsBitmapDevice> bitmapDevicePtr(bitmapDevice);
+    QT_TRAP_THROWING(bitmapGc = CFbsBitGc::NewL());
+    bitmapGc->Activate(bitmapDevice);
+    bitmapGc->BitBlt(TPoint(), bitmap);
+    delete bitmapGc;
+    return newBitmap.take();
+}
+
+static inline TDisplayMode format2TDisplayMode(QImage::Format format)
+{
+    TDisplayMode mode;
+    switch (format) {
+    case QImage::Format_MonoLSB:
+        mode = EGray2;
+        break;
+    case QImage::Format_Indexed8:
+        mode = EColor256;
+        break;
+    case QImage::Format_RGB444:
+        mode = EColor4K;
+        break;
+    case QImage::Format_RGB16:
+        mode = EColor64K;
+        break;
+    case QImage::Format_RGB888:
+        mode = EColor16M;
+        break;
+    case QImage::Format_RGB32:
+        mode = EColor16MU;
+        break;
+    case QImage::Format_ARGB32:
+        mode = EColor16MA;
+        break;
+    case QImage::Format_ARGB32_Premultiplied:
+        mode = Q_SYMBIAN_ECOLOR16MAP;
+        break;
+    default:
+        mode = ENone;
+        break;
+    }
+    return mode;
+}
+
+static CFbsBitmap *imageToBitmap(const QImage &image)
+{
+    if (image.isNull()) {
+        return 0;
+    }
+    CFbsBitmap *bitmap = new CFbsBitmap;
+    if (bitmap->Create(TSize(image.width(), image.height()),
+                       format2TDisplayMode(image.format())) == KErrNone) {
+        bitmap->BeginDataAccess();
+        uchar *dptr = reinterpret_cast<uchar *>(bitmap->DataAddress());
+        int bmpLineLen = bitmap->DataStride();
+        int imgLineLen = image.bytesPerLine();
+        if (bmpLineLen == imgLineLen) {
+            qMemCopy(dptr, image.constBits(), image.byteCount());
+        } else {
+            int len = qMin(bmpLineLen, imgLineLen);
+            const uchar *sptr = image.constBits();
+            for (int y = 0; y < image.height(); ++y) {
+                qMemCopy(dptr, sptr, len);
+                dptr += bmpLineLen;
+                sptr += imgLineLen;
+            }
+        }
+        bitmap->EndDataAccess();
+    } else {
+        qWarning("QVolatileImage: Failed to create source bitmap");
+        delete bitmap;
+        bitmap = 0;
+    }
+    return bitmap;
+}
+
+static CFbsBitmap *copyData(const QVolatileImageData &source)
+{
+    source.beginDataAccess();
+    CFbsBitmap *bmp = imageToBitmap(source.image);
+    source.endDataAccess();
+    return bmp;
+}
+
+static CFbsBitmap *convertData(const QVolatileImageData &source, QImage::Format newFormat)
+{
+    source.beginDataAccess();
+    QImage img = source.image.convertToFormat(newFormat);
+    CFbsBitmap *bmp = imageToBitmap(img);
+    source.endDataAccess();
+    return bmp;
+}
+
+static CFbsBitmap *duplicateBitmap(const CFbsBitmap &sourceBitmap)
+{
+    CFbsBitmap *bitmap = new CFbsBitmap;
+    if (bitmap->Duplicate(sourceBitmap.Handle()) != KErrNone) {
+        qWarning("QVolatileImage: Failed to duplicate source bitmap");
+        delete bitmap;
+        bitmap = 0;
+    }
+    return bitmap;
+}
+
+static CFbsBitmap *createBitmap(int w, int h, QImage::Format format)
+{
+    CFbsBitmap *bitmap = new CFbsBitmap;
+    if (bitmap->Create(TSize(w, h), format2TDisplayMode(format)) != KErrNone) {
+        qWarning("QVolatileImage: Failed to create source bitmap %d,%d (%d)", w, h, format);
+        delete bitmap;
+        bitmap = 0;
+    }
+    return bitmap;
+}
+
+static inline bool bitmapNeedsCopy(CFbsBitmap *bitmap)
+{
+    bool needsCopy = bitmap->IsCompressedInRAM();
+#ifdef Q_SYMBIAN_HAS_EXTENDED_BITMAP_TYPE
+    needsCopy |= (bitmap->ExtendedBitmapType() != KNullUid);
+#endif
+    return needsCopy;
+}
+
+static bool cleanup_function_registered = false;
+static QVolatileImageData *firstImageData = 0;
+
+static void cleanup()
+{
+    if (RFbsSession::GetSession()) {
+        QVolatileImageData *imageData = firstImageData;
+        while (imageData) {
+            imageData->release();
+            imageData = imageData->next;
+        }
+    }
+}
+
+static void ensureCleanup()
+{
+    // Destroy all underlying bitmaps in a post routine to prevent panics.
+    // This is a must because CFbsBitmap destructor needs the fbs session,
+    // that was used to create the bitmap, to be open still.
+    if (!cleanup_function_registered) {
+        qAddPostRoutine(cleanup);
+        cleanup_function_registered = true;
+    }
+}
+
+static void registerImageData(QVolatileImageData *imageData)
+{
+    ensureCleanup();
+    imageData->next = firstImageData;
+    if (firstImageData) {
+        firstImageData->prev = imageData;
+    }
+    firstImageData = imageData;
+}
+
+static void unregisterImageData(QVolatileImageData *imageData)
+{
+    if (imageData->prev) {
+        imageData->prev->next = imageData->next;
+    } else {
+        firstImageData = imageData->next;
+    }
+    if (imageData->next) {
+        imageData->next->prev = imageData->prev;
+    }
+}
+
+QVolatileImageData::QVolatileImageData()
+    : next(0), prev(0), bitmap(0), pengine(0)
+{
+    registerImageData(this);
+}
+
+QVolatileImageData::QVolatileImageData(int w, int h, QImage::Format format)
+    : next(0), prev(0), bitmap(0), pengine(0)
+{
+    registerImageData(this);
+    bitmap = createBitmap(w, h, format);
+    updateImage();
+}
+
+QVolatileImageData::QVolatileImageData(const QImage &sourceImage)
+    : next(0), prev(0), bitmap(0), pengine(0)
+{
+    registerImageData(this);
+    image = sourceImage;
+    // The following is not mandatory, but we do it here to have a bitmap
+    // created always in order to reduce local heap usage.
+    ensureBitmap();
+}
+
+QVolatileImageData::QVolatileImageData(void *nativeImage, void *nativeMask)
+    : next(0), prev(0), bitmap(0), pengine(0)
+{
+    registerImageData(this);
+    if (nativeImage) {
+        CFbsBitmap *source = static_cast<CFbsBitmap *>(nativeImage);
+        CFbsBitmap *mask = static_cast<CFbsBitmap *>(nativeMask);
+        initWithBitmap(source);
+        if (mask) {
+            applyMask(mask);
+        }
+    }
+}
+
+QVolatileImageData::QVolatileImageData(const QVolatileImageData &other)
+{
+    bitmap = 0;
+    pengine = 0;
+    next = prev = 0;
+    registerImageData(this);
+    if (!other.image.isNull()) {
+        bitmap = copyData(other);
+        updateImage();
+    }
+}
+
+QVolatileImageData::~QVolatileImageData()
+{
+    release();
+    unregisterImageData(this);
+}
+
+void QVolatileImageData::release()
+{
+    delete bitmap;
+    bitmap = 0;
+    delete pengine;
+    pengine = 0;
+}
+
+void QVolatileImageData::beginDataAccess() const
+{
+    if (bitmap) {
+        bitmap->BeginDataAccess();
+    }
+}
+
+void QVolatileImageData::endDataAccess(bool readOnly) const
+{
+    if (bitmap) {
+        bitmap->EndDataAccess(readOnly);
+    }
+}
+
+bool QVolatileImageData::ensureFormat(QImage::Format format)
+{
+    if (image.isNull()) {
+        return false;
+    }
+    if (image.format() != format) {
+        CFbsBitmap *newBitmap = convertData(*this, format);
+        if (newBitmap && newBitmap != bitmap) {
+            delete bitmap;
+            bitmap = newBitmap;
+            updateImage();
+        } else {
+            return false;
+        }
+    }
+    return true;
+}
+
+void *QVolatileImageData::duplicateNativeImage() const
+{
+    const_cast<QVolatileImageData *>(this)->ensureBitmap();
+    if (bitmap) {
+        if (bitmap->DisplayMode() == EColor16M) {
+            // slow path: needs rgb swapping
+            beginDataAccess();
+            QImage tmp = image.rgbSwapped();
+            endDataAccess(true);
+            return imageToBitmap(tmp);
+        } else if (bitmap->DisplayMode() == EGray2) {
+            // slow path: needs inverting pixels
+            beginDataAccess();
+            QImage tmp = image.copy();
+            endDataAccess(true);
+            tmp.invertPixels();
+            return imageToBitmap(tmp);
+        } else {
+            // fast path: just duplicate the bitmap
+            return duplicateBitmap(*bitmap);
+        }
+    }
+    return 0;
+}
+
+void QVolatileImageData::updateImage()
+{
+    if (bitmap) {
+        TSize size = bitmap->SizeInPixels();
+        beginDataAccess();
+        // Use existing buffer, no copy.  The data address never changes so it
+        // is enough to do this whenever we have a new CFbsBitmap.  N.B. never
+        // use const uchar* here, that would create a read-only image data which
+        // would make a copy in detach() even when refcount is 1.
+        image = QImage(reinterpret_cast<uchar *>(bitmap->DataAddress()),
+                       size.iWidth, size.iHeight, bitmap->DataStride(),
+                       qt_TDisplayMode2Format(bitmap->DisplayMode()));
+        endDataAccess(true);
+    } else {
+        image = QImage();
+    }
+}
+
+void QVolatileImageData::initWithBitmap(CFbsBitmap *source)
+{
+    bool needsCopy = bitmapNeedsCopy(source);
+    if (source->DisplayMode() == EColor16M) {
+        // EColor16M is BGR
+        CFbsBitmap *unswappedBmp = source;
+        if (needsCopy) {
+            unswappedBmp = rasterizeBitmap(source, source->DisplayMode());
+        }
+        unswappedBmp->BeginDataAccess();
+        TSize sourceSize = unswappedBmp->SizeInPixels();
+        QImage img((uchar *) unswappedBmp->DataAddress(),
+                   sourceSize.iWidth, sourceSize.iHeight, unswappedBmp->DataStride(),
+                   qt_TDisplayMode2Format(unswappedBmp->DisplayMode()));
+        img = img.rgbSwapped();
+        unswappedBmp->EndDataAccess(true);
+        bitmap = imageToBitmap(img);
+        if (needsCopy) {
+            delete unswappedBmp;
+        }
+    } else if (needsCopy) {
+        // Rasterize extended and compressed bitmaps.
+        bitmap = rasterizeBitmap(source, EColor16MAP);
+    } else if (source->DisplayMode() == EGray2) {
+        // The pixels will be inverted, must make a copy.
+        bitmap = rasterizeBitmap(source, source->DisplayMode());
+    } else {
+        // Efficient path: no pixel data copying. Just duplicate. This of course
+        // means the original bitmap's data may get modified, but that's fine
+        // and is in accordance with the QPixmap::fromSymbianCFbsBitmap() docs.
+        bitmap = duplicateBitmap(*source);
+    }
+    updateImage();
+    if (bitmap && bitmap->DisplayMode() == EGray2) {
+        // Symbian thinks set pixels are white/transparent, Qt thinks they are
+        // foreground/solid. Invert mono bitmaps so that masks work correctly.
+        beginDataAccess();
+        image.invertPixels();
+        endDataAccess();
+    }
+}
+
+void QVolatileImageData::applyMask(CFbsBitmap *mask)
+{
+    ensureFormat(QImage::Format_ARGB32_Premultiplied);
+    bool destroyMask = false;
+    if (bitmapNeedsCopy(mask)) {
+        mask = rasterizeBitmap(mask, EColor16MU);
+        if (!mask) {
+            return;
+        }
+        destroyMask = true;
+    }
+    mask->BeginDataAccess();
+    TSize maskSize = mask->SizeInPixels();
+    QImage maskImg((const uchar *) mask->DataAddress(), maskSize.iWidth, maskSize.iHeight,
+                   mask->DataStride(), qt_TDisplayMode2Format(mask->DisplayMode()));
+    if (mask->DisplayMode() == EGray2) {
+        maskImg = maskImg.copy();
+        maskImg.invertPixels();
+    }
+    beginDataAccess();
+    image.setAlphaChannel(maskImg);
+    endDataAccess();
+    mask->EndDataAccess(true);
+    ensureImage();
+    if (destroyMask) {
+        delete mask;
+    }
+}
+
+void QVolatileImageData::ensureImage()
+{
+    if (bitmap && !image.isNull()) {
+        QImageData *imaged = image.data_ptr();
+        if (imaged->ref != 1 || imaged->ro_data) {
+            // This is bad, the imagedata got shared somehow. Detach, in order to
+            // have the next check fail and thus have 'image' recreated.
+            beginDataAccess();
+            image.detach();
+            endDataAccess(true);
+        }
+    }
+    if (bitmap && image.constBits() != reinterpret_cast<const uchar *>(bitmap->DataAddress())) {
+        // Should not ever get here. If we do it means that either 'image' has
+        // been replaced with a copy (e.g. because some QImage API assigned a
+        // new, regular QImage to *this) or the bitmap's data address changed
+        // unexpectedly.
+        qWarning("QVolatileImageData: Ptr mismatch");
+        // Recover by recreating the image so that it uses the bitmap as its buffer.
+        updateImage();
+    }
+}
+
+void QVolatileImageData::ensureBitmap()
+{
+    if (!bitmap && !image.isNull()) {
+        bitmap = imageToBitmap(image);
+        updateImage();
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/src/gui/inputmethod/qcoefepinputcontext_p.h b/src/gui/inputmethod/qcoefepinputcontext_p.h
index 8c8ffd4..de3577f 100644
--- a/src/gui/inputmethod/qcoefepinputcontext_p.h
+++ b/src/gui/inputmethod/qcoefepinputcontext_p.h
@@ -93,6 +93,9 @@ public:
 
     TCoeInputCapabilities inputCapabilities();
 
+    void resetSplitViewWidget(bool keepInputWidget = false);
+    void ensureFocusWidgetVisible(QWidget *widget);
+
 protected:
     void timerEvent(QTimerEvent *timerEvent);
 
@@ -104,9 +107,11 @@ private:
     void queueInputCapabilitiesChanged();
     bool needsInputPanel();
     void commitTemporaryPreeditString();
+    bool isWidgetVisible(QWidget *widget, int offset = 0);
 
 private Q_SLOTS:
     void ensureInputCapabilitiesChanged();
+    void translateInputWidget();
 
     // From MCoeFepAwareTextEditor
 public:
@@ -155,9 +160,15 @@ private:
     QBasicTimer m_tempPreeditStringTimeout;
     bool m_hasTempPreeditString;
 
+    int m_splitViewResizeBy;
+    Qt::WindowStates m_splitViewPreviousWindowStates;
+    QRectF m_transformation;
+
     friend class tst_QInputContext;
 };
 
+Q_GUI_EXPORT void qt_s60_setPartialScreenInputMode(bool enable);
+
 QT_END_NAMESPACE
 
 #endif // QT_NO_IM
diff --git a/src/gui/inputmethod/qcoefepinputcontext_s60.cpp b/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
index 1bef64d..9d8dd41 100644
--- a/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
+++ b/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
@@ -48,6 +48,8 @@
 #include <qgraphicsscene.h>
 #include <qgraphicswidget.h>
 #include <qsymbianevent.h>
+#include <qlayout.h>
+#include <qdesktopwidget.h>
 #include <private/qcore_symbian_p.h>
 
 #include <fepitfr.h>
@@ -67,8 +69,16 @@
 // that support text selection.
 #define QT_EAknEditorFlagSelectionVisible 0x100000
 
+// EAknEditorFlagEnablePartialScreen is only valid from Sym^3 onwards.
+#define QT_EAknEditorFlagEnablePartialScreen 0x200000
+
 QT_BEGIN_NAMESPACE
 
+Q_GUI_EXPORT void qt_s60_setPartialScreenInputMode(bool enable)
+{
+    S60->partial_keyboard = enable;
+}
+
 QCoeFepInputContext::QCoeFepInputContext(QObject *parent)
     : QInputContext(parent),
       m_fepState(q_check_ptr(new CAknEdwinState)),		// CBase derived object needs check on new
@@ -80,13 +90,19 @@ QCoeFepInputContext::QCoeFepInputContext(QObject *parent)
       m_inlinePosition(0),
       m_formatRetriever(0),
       m_pointerHandler(0),
-      m_hasTempPreeditString(false)
+      m_hasTempPreeditString(false),
+      m_splitViewResizeBy(0),
+      m_splitViewPreviousWindowStates(Qt::WindowNoState)
 {
     m_fepState->SetObjectProvider(this);
-    if (QSysInfo::s60Version() > QSysInfo::SV_S60_5_0)
-        m_fepState->SetFlags(EAknEditorFlagDefault | QT_EAknEditorFlagSelectionVisible);
-    else
-        m_fepState->SetFlags(EAknEditorFlagDefault);
+    int defaultFlags = EAknEditorFlagDefault;
+    if (QSysInfo::s60Version() > QSysInfo::SV_S60_5_0) {
+        if (S60->partial_keyboard) {
+            defaultFlags |= QT_EAknEditorFlagEnablePartialScreen;
+        }
+        defaultFlags |= QT_EAknEditorFlagSelectionVisible;
+    }
+    m_fepState->SetFlags(defaultFlags);
     m_fepState->SetDefaultInputMode( EAknEditorTextInputMode );
     m_fepState->SetPermittedInputModes( EAknEditorAllInputModes );
     m_fepState->SetDefaultCase( EAknEditorTextCase );
@@ -210,6 +226,21 @@ bool QCoeFepInputContext::filterEvent(const QEvent *event)
         return false;
 
     switch (event->type()) {
+    case QEvent::MouseButtonPress:
+        // Alphanumeric keypad doesn't like it when we click and text is still getting displayed
+        // It ignores the mouse event, so we need to commit and send a selection event (which will get triggered
+        // after the commit)
+        if (!m_preeditString.isEmpty()) {
+            commitCurrentString(false);
+
+            int pos = focusWidget()->inputMethodQuery(Qt::ImCursorPosition).toInt();
+
+            QList<QInputMethodEvent::Attribute> selectAttributes;
+            selectAttributes << QInputMethodEvent::Attribute(QInputMethodEvent::Selection, pos, 0, QVariant());
+            QInputMethodEvent selectEvent(QLatin1String(""), selectAttributes);
+            sendEvent(selectEvent);
+    }
+        break;
     case QEvent::KeyPress:
         commitTemporaryPreeditString();
         // fall through intended
@@ -343,6 +374,165 @@ TCoeInputCapabilities QCoeFepInputContext::inputCapabilities()
     return TCoeInputCapabilities(m_textCapabilities, this, 0);
 }
 
+void QCoeFepInputContext::resetSplitViewWidget(bool keepInputWidget)
+{
+    QGraphicsView *gv = qobject_cast<QGraphicsView*>(S60->splitViewLastWidget);
+
+    if (!gv) {
+        return;
+    }
+
+    QSymbianControl *symControl = static_cast<QSymbianControl*>(gv->effectiveWinId());
+    symControl->CancelLongTapTimer();
+
+    const bool alwaysResize = (gv->verticalScrollBarPolicy() != Qt::ScrollBarAlwaysOff);
+    QWidget *windowToMove = gv->window();
+
+    bool userResize = gv->testAttribute(Qt::WA_Resized);
+
+    windowToMove->setUpdatesEnabled(false);
+
+    if (!alwaysResize) {
+        if (gv->scene()) {
+            if (gv->scene()->focusItem())
+                disconnect(gv->scene()->focusItem()->toGraphicsObject(), SIGNAL(cursorPositionChanged()), this, SLOT(translateInputWidget()));
+            QGraphicsItem *rootItem;
+            foreach (QGraphicsItem *item, gv->scene()->items()) {
+                if (!item->parentItem()) {
+                    rootItem = item;
+                    break;
+                }
+            }
+            if (rootItem)
+                rootItem->resetTransform();
+        }
+    } else {
+        if (m_splitViewResizeBy)
+            gv->resize(gv->rect().width(), m_splitViewResizeBy);
+    }
+    // Resizing might have led to widget losing its original windowstate.
+    // Restore previous window state.
+
+    if (m_splitViewPreviousWindowStates != windowToMove->windowState())
+        windowToMove->setWindowState(m_splitViewPreviousWindowStates);
+
+    windowToMove->setUpdatesEnabled(true);
+
+    gv->setAttribute(Qt::WA_Resized, userResize); //not a user resize
+
+    m_splitViewResizeBy = 0;
+    if (!keepInputWidget) {
+        m_splitViewPreviousWindowStates = Qt::WindowNoState;
+        S60->splitViewLastWidget = 0;
+    }
+}
+
+// Checks if a given widget is visible in the splitview rect. The offset
+// parameter can be used to validate if moving widget upwards or downwards
+// by the offset would make a difference for the visibility.
+
+bool QCoeFepInputContext::isWidgetVisible(QWidget *widget, int offset)
+{
+    bool visible = false;
+    if (widget) {
+        QRect splitViewRect = qt_TRect2QRect(static_cast<CEikAppUi*>(S60->appUi())->ClientRect());
+        QWidget *window = QApplication::activeWindow();
+        QGraphicsView *gv = qobject_cast<QGraphicsView*>(widget);
+        if (gv && window) {
+            if (QGraphicsScene *scene = gv->scene()) {
+                if (QGraphicsItem *focusItem = scene->focusItem()) {
+                    QPoint cursorPos = window->mapToGlobal(focusItem->cursor().pos());
+                    cursorPos.setY(cursorPos.y() + offset);
+                    if (splitViewRect.contains(cursorPos)) {
+                        visible = true;
+                    }
+                }
+            }
+        }
+    }
+    return visible;
+}
+
+// Ensure that the input widget is visible in the splitview rect.
+
+void QCoeFepInputContext::ensureFocusWidgetVisible(QWidget *widget)
+{
+    // Native side opening and closing its virtual keyboard when it changes the keyboard layout,
+    // has an adverse impact on long tap timer. Cancel the timer when splitview opens to avoid this.
+    QSymbianControl *symControl = static_cast<QSymbianControl*>(widget->effectiveWinId());
+    symControl->CancelLongTapTimer();
+
+    // Graphicsviews that have vertical scrollbars should always be resized to the splitview area.
+    // Graphicsviews without scrollbars should be translated.
+
+    QGraphicsView *gv = qobject_cast<QGraphicsView*>(widget);
+    if (!gv)
+        return;
+
+    const bool alwaysResize = (gv && gv->verticalScrollBarPolicy() != Qt::ScrollBarAlwaysOff);
+    const bool moveWithinVisibleArea = (S60->splitViewLastWidget != 0);
+
+    QWidget *windowToMove = gv ? gv : symControl->widget();
+    if (!windowToMove->isWindow())
+        windowToMove = windowToMove->window();
+    if (!windowToMove) {
+        return;
+    }
+
+    // When opening the keyboard (not moving within the splitview area), save the original
+    // window state. In some cases, ensuring input widget visibility might lead to window
+    // states getting changed.
+
+    if (!moveWithinVisibleArea) {
+        S60->splitViewLastWidget = widget;
+        m_splitViewPreviousWindowStates = windowToMove->windowState();
+    }
+
+    int windowTop = widget->window()->pos().y();
+
+    const bool userResize = widget->testAttribute(Qt::WA_Resized);
+
+    QRect splitViewRect = qt_TRect2QRect(static_cast<CEikAppUi*>(S60->appUi())->ClientRect());
+
+
+    // When resizing a window widget, it will lose its maximized window state.
+    // Native applications hide statuspane in splitview state, so lets move to
+    // fullscreen mode. This makes available area slightly bigger, which helps usability
+    // and greatly reduces event passing in orientation switch cases,
+    // as the statuspane size is not changing.
+
+    if (!(windowToMove->windowState() & Qt::WindowFullScreen)) {
+        windowToMove->setWindowState(
+            (windowToMove->windowState() & ~(Qt::WindowMinimized | Qt::WindowFullScreen)) | Qt::WindowFullScreen);
+    }
+
+    if (alwaysResize) {
+        windowToMove->setUpdatesEnabled(false);
+        if (!moveWithinVisibleArea)
+            m_splitViewResizeBy = widget->height();
+
+        windowTop = widget->geometry().top();
+        widget->resize(widget->width(), splitViewRect.height() - windowTop);
+
+        if (gv->scene()) {
+            const QRectF microFocusRect = gv->scene()->inputMethodQuery(Qt::ImMicroFocus).toRectF();
+            gv->ensureVisible(microFocusRect);
+        }
+        windowToMove->setUpdatesEnabled(true);
+    } else {
+        if (!moveWithinVisibleArea) {
+            // Check if the widget contains cursorPositionChanged signal and connect to it.
+            const char *signal = QMetaObject::normalizedSignature(SIGNAL(cursorPositionChanged())).constData();
+            int index = gv->scene()->focusItem()->toGraphicsObject()->metaObject()->indexOfSignal(signal + 1);
+            if (index != -1)
+                connect(gv->scene()->focusItem()->toGraphicsObject(), SIGNAL(cursorPositionChanged()), this, SLOT(translateInputWidget()));
+        }
+        translateInputWidget();
+    }
+
+    widget->setAttribute(Qt::WA_Resized, userResize); //not a user resize
+}
+
 static QTextCharFormat qt_TCharFormat2QTextCharFormat(const TCharFormat &cFormat, bool validStyleColor)
 {
     QTextCharFormat qFormat;
@@ -474,10 +664,12 @@ void QCoeFepInputContext::applyHints(Qt::InputMethodHints hints)
     m_fepState->SetPermittedCases(flags);
     ReportAknEdStateEvent(MAknEdStateObserver::EAknEdwinStateCaseModeUpdate);
 
-    if (QSysInfo::s60Version() > QSysInfo::SV_S60_5_0)
-        flags = QT_EAknEditorFlagSelectionVisible;
-    else 
-        flags = 0;
+    flags = 0;
+    if (QSysInfo::s60Version() > QSysInfo::SV_S60_5_0) {
+        if (S60->partial_keyboard)
+            flags |= QT_EAknEditorFlagEnablePartialScreen;
+        flags |= QT_EAknEditorFlagSelectionVisible;
+    }
     if (hints & ImhUppercaseOnly && !(hints & ImhLowercaseOnly)
             || hints & ImhLowercaseOnly && !(hints & ImhUppercaseOnly)) {
         flags |= EAknEditorFlagFixedCase;
@@ -604,6 +796,47 @@ void QCoeFepInputContext::ensureInputCapabilitiesChanged()
     m_pendingInputCapabilitiesChanged = false;
 }
 
+void QCoeFepInputContext::translateInputWidget()
+{
+    QGraphicsView *gv = qobject_cast<QGraphicsView *>(S60->splitViewLastWidget);
+    QRect splitViewRect = qt_TRect2QRect(static_cast<CEikAppUi*>(S60->appUi())->ClientRect());
+
+    QRectF cursor = gv->scene()->inputMethodQuery(Qt::ImMicroFocus).toRectF();
+    QPolygon cursorP = gv->mapFromScene(cursor);
+    QRectF vkbRect = QRectF(splitViewRect.bottomLeft(), qApp->desktop()->rect().bottomRight());
+    if (cursor.isEmpty() || vkbRect.isEmpty())
+        return;
+
+    // Fetch root item (i.e. graphicsitem with no parent)
+    QGraphicsItem *rootItem;
+    foreach (QGraphicsItem *item, gv->scene()->items()) {
+        if (!item->parentItem()) {
+            rootItem = item;
+            break;
+        }
+    }
+    if (!rootItem)
+        return;
+
+    m_transformation = (rootItem->transform().isTranslating()) ? QRectF(0,0, gv->width(), rootItem->transform().dy()) : QRectF();
+
+    // Do nothing if the cursor is visible in the splitview area.
+    if (splitViewRect.contains(cursorP.boundingRect()))
+        return;
+
+    // New Y position should be ideally at the center of the splitview area.
+    // If that would expose unpainted canvas, limit the tranformation to the visible scene bottom.
+
+    const qreal maxY = gv->sceneRect().bottom() - splitViewRect.bottom() + m_transformation.height();
+    qreal dy = -(qMin(maxY, (cursor.bottom() - vkbRect.top() / 2)));
+
+    // Do not allow transform above screen top.
+    if (m_transformation.height() + dy > 0)
+        return;
+
+    rootItem->setTransform(QTransform::fromTranslate(0, dy), true);
+}
+
 void QCoeFepInputContext::StartFepInlineEditL(const TDesC& aInitialInlineText,
         TInt aPositionOfInsertionPointInInlineText, TBool aCursorVisibility, const MFormCustomDraw* /*aCustomDraw*/,
         MFepInlineTextFormatRetriever& aInlineTextFormatRetriever,
diff --git a/src/gui/kernel/qapplication_p.h b/src/gui/kernel/qapplication_p.h
index 43634ef..3d2c9d6 100644
--- a/src/gui/kernel/qapplication_p.h
+++ b/src/gui/kernel/qapplication_p.h
@@ -599,6 +599,8 @@ public:
     int pressureSupported;
     int maxTouchPressure;
     QList<QTouchEvent::TouchPoint> appAllTouchPoints;
+
+    bool useTranslucentEGLSurfaces;
 #endif
 
 private:
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index fb0c6b8..2b10d63 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -96,6 +96,9 @@ QT_BEGIN_NAMESPACE
 // Goom Events through Window Server
 static const int KGoomMemoryLowEvent = 0x10282DBF;
 static const int KGoomMemoryGoodEvent = 0x20026790;
+// Split view open/close events from AVKON
+static const int KSplitViewOpenEvent = 0x2001E2C0;
+static const int KSplitViewCloseEvent = 0x2001E2C1;
 
 #if defined(QT_DEBUG)
 static bool        appNoGrab        = false;        // Grabbing enabled
@@ -401,6 +404,7 @@ QSymbianControl::QSymbianControl(QWidget *w)
     , m_longTapDetector(0)
     , m_ignoreFocusChanged(0)
     , m_symbianPopupIsOpen(0)
+    , m_inExternalScreenOverride(false)
 {
 }
 
@@ -408,9 +412,11 @@ void QSymbianControl::ConstructL(bool isWindowOwning, bool desktop)
 {
     if (!desktop)
     {
-        if (isWindowOwning || !qwidget->parentWidget())
-            CreateWindowL(S60->windowGroup());
-        else
+        if (isWindowOwning || !qwidget->parentWidget()
+            || qwidget->parentWidget()->windowType() == Qt::Desktop) {
+            RWindowGroup &wg(S60->windowGroup(qwidget));
+            CreateWindowL(wg);
+        } else {
             /**
              * TODO: in order to avoid creating windows for all ancestors of
              * this widget up to the root window, the parameter passed to
@@ -420,6 +426,7 @@ void QSymbianControl::ConstructL(bool isWindowOwning, bool desktop)
              * is created for a widget between this one and the root window.
              */
             CreateWindowL(qwidget->parentWidget()->winId());
+        }
 
         // Necessary in order to be able to track the activation status of
         // the control's window
@@ -452,7 +459,7 @@ void QSymbianControl::ConstructL(bool isWindowOwning, bool desktop)
             windowPurpose = ETfxPurposeSplashScreenWindow;
             break;
         default:
-            windowPurpose = (isWindowOwning || !qwidget->parentWidget())
+            windowPurpose = (isWindowOwning || !qwidget->parentWidget() || qwidget->parentWidget()->windowType() == Qt::Desktop)
                             ? ETfxPurposeWindow : ETfxPurposeChildWindow;
             break;
         }
@@ -983,14 +990,15 @@ TKeyResponse QSymbianControl::handleVirtualMouse(const TKeyEvent& keyEvent,TEven
                 }
             }
             //clip to screen size (window server allows a sprite hotspot to be outside the screen)
+            int screenNumber = S60->screenNumberForWidget(qwidget);
             if (x < 0)
                 x = 0;
-            else if (x >= S60->screenWidthInPixels)
-                x = S60->screenWidthInPixels - 1;
+            else if (x >= S60->screenWidthInPixelsForScreen[screenNumber])
+                x = S60->screenWidthInPixelsForScreen[screenNumber] - 1;
             if (y < 0)
                 y = 0;
-            else if (y >= S60->screenHeightInPixels)
-                y = S60->screenHeightInPixels - 1;
+            else if (y >= S60->screenHeightInPixelsForScreen[screenNumber])
+                y = S60->screenHeightInPixelsForScreen[screenNumber] - 1;
             TPoint epos(x, y);
             TPoint cpos = epos - PositionRelativeToScreen();
             fakeEvent.iPosition = cpos;
@@ -1124,7 +1132,8 @@ void QSymbianControl::Draw(const TRect& controlRect) const
             // Do nothing
             break;
         case QWExtra::Blit:
-            if (qwidget->d_func()->isOpaque)
+        case QWExtra::BlitWriteAlpha:
+            if (qwidget->d_func()->isOpaque || nativePaintMode == QWExtra::BlitWriteAlpha)
                 gc.SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha);
             gc.BitBlt(controlRect.iTl, bitmap, backingStoreRect);
             break;
@@ -1167,6 +1176,18 @@ void QSymbianControl::SizeChanged()
     QSize newSize(Size().iWidth, Size().iHeight);
 
     if (oldSize != newSize) {
+        const bool isFullscreen = qwidget->windowState() & Qt::WindowFullScreen;
+        const int screenNumber = S60->screenNumberForWidget(qwidget);
+        if (!m_inExternalScreenOverride && isFullscreen && screenNumber > 0) {
+            int screenWidth = S60->screenWidthInPixelsForScreen[screenNumber];
+            int screenHeight = S60->screenHeightInPixelsForScreen[screenNumber];
+            TSize screenSize(screenWidth, screenHeight);
+            if (screenWidth > 0 && screenHeight > 0 && screenSize != Size()) {
+                m_inExternalScreenOverride = true;
+                SetExtent(TPoint(0, 0), screenSize);
+                return;
+            }
+        }
         QRect cr = qwidget->geometry();
         cr.setSize(newSize);
         qwidget->data->crect = cr;
@@ -1189,6 +1210,8 @@ void QSymbianControl::SizeChanged()
         }
     }
 
+    m_inExternalScreenOverride = false;
+
     // CCoeControl::SetExtent calls SizeChanged, but does not call
     // PositionChanged, so we call it here to ensure that the widget's
     // position is updated.
@@ -1224,6 +1247,11 @@ void QSymbianControl::FocusChanged(TDrawNow /* aDrawNow */)
     if (m_ignoreFocusChanged || (qwidget->windowType() & Qt::WindowType_Mask) == Qt::Desktop)
         return;
 
+#ifdef Q_WS_S60
+    if (S60->splitViewLastWidget)
+        return;
+#endif
+
     // Popups never get focused, but still receive the FocusChanged when they are hidden.
     if (QApplicationPrivate::popupWidgets != 0
             || (qwidget->windowType() & Qt::Popup) == Qt::Popup)
@@ -1302,9 +1330,56 @@ void QSymbianControl::handleClientAreaChange()
     }
 }
 
+bool QSymbianControl::isSplitViewWidget(QWidget *widget) {
+    bool returnValue = true;
+    //Ignore events sent to non-active windows, not visible widgets and not parents of input widget.
+    if (!qwidget->isActiveWindow()
+        || !qwidget->isVisible()
+        || !qwidget->isAncestorOf(widget)) {
+
+        returnValue = false;
+    }
+    return returnValue;
+}
+
 void QSymbianControl::HandleResourceChange(int resourceType)
 {
     switch (resourceType) {
+    case KSplitViewCloseEvent: //intentional fall-through
+    case KSplitViewOpenEvent: {
+#if !defined(QT_NO_IM) && defined(Q_WS_S60)
+
+        //Fetch widget getting the text input
+        QWidget *widget = QWidget::keyboardGrabber();
+        if (!widget) {
+            if (QApplicationPrivate::popupWidgets) {
+                widget = QApplication::activePopupWidget()->focusWidget();
+                if (!widget) {
+                    widget = QApplication::activePopupWidget();
+                }
+            } else {
+                widget = QApplicationPrivate::focus_widget;
+                if (!widget) {
+                    widget = qwidget;
+                }
+            }
+        }
+        if (widget) {
+            QCoeFepInputContext *ic = qobject_cast<QCoeFepInputContext *>(widget->inputContext());
+            if (!ic) {
+                ic = qobject_cast<QCoeFepInputContext *>(qApp->inputContext());
+            }
+            if (ic && isSplitViewWidget(widget)) {
+                if (resourceType == KSplitViewCloseEvent) {
+                    ic->resetSplitViewWidget();
+                } else {
+                    ic->ensureFocusWidgetVisible(widget);
+                }
+            }
+        }
+#endif // !defined(QT_NO_IM) && defined(Q_WS_S60)
+    }
+    break;
     case KInternalStatusPaneChange:
         handleClientAreaChange();
         if (IsFocused() && IsVisible()) {
@@ -1590,6 +1665,32 @@ void qt_init(QApplicationPrivate * /* priv */, int)
     QObject::connect(qApp, SIGNAL(aboutToQuit()), qApp, SLOT(_q_aboutToQuit()));
 #endif
 
+#ifdef Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE
+    QApplicationPrivate::instance()->useTranslucentEGLSurfaces = true;
+
+    const TUid KIvePropertyCat = {0x2726beef};
+    enum TIvePropertyChipType {
+        EVCBCM2727B1 = 0x00000000,
+        EVCBCM2763A0 = 0x04000100,
+        EVCBCM2763B0 = 0x04000102,
+        EVCBCM2763C0 = 0x04000103,
+        EVCBCM2763C1 = 0x04000104,
+        EVCBCMUnknown = 0x7fffffff
+    };
+
+    TInt chipType = EVCBCMUnknown;
+    if (RProperty::Get(KIvePropertyCat, 0 /*chip type*/, chipType) == KErrNone) {
+        if (chipType == EVCBCM2727B1) {
+            // We have only 32MB GPU memory. Use raster surfaces
+            // for transparent TLWs.
+            QApplicationPrivate::instance()->useTranslucentEGLSurfaces = false;
+        }
+    } else {
+        QApplicationPrivate::instance()->useTranslucentEGLSurfaces = false;
+    }
+#else
+    QApplicationPrivate::instance()->useTranslucentEGLSurfaces = false;
+#endif
 /*
  ### Commented out for now as parameter handling not needed in SOS(yet). Code below will break testlib with -o flag
     int argc = priv->argc;
@@ -1979,7 +2080,10 @@ int QApplicationPrivate::symbianProcessWsEvent(const QSymbianEvent *symbianEvent
             return 1;
         }
         break;
-    case EEventScreenDeviceChanged:
+    case EEventScreenDeviceChanged: // fallthrough
+#if defined(Q_SYMBIAN_SUPPORTS_MULTIPLE_SCREENS)
+    case EEventDisplayChanged:
+#endif
         if (callSymbianEventFilters(symbianEvent))
             return 1;
         if (S60)
diff --git a/src/gui/kernel/qclipboard_win.cpp b/src/gui/kernel/qclipboard_win.cpp
index 52b9663..ea41165 100644
--- a/src/gui/kernel/qclipboard_win.cpp
+++ b/src/gui/kernel/qclipboard_win.cpp
@@ -52,6 +52,7 @@
 #include "qt_windows.h"
 #include "qdnd_p.h"
 #include <private/qwidget_p.h>
+#include <private/qsystemlibrary_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -70,6 +71,9 @@ void QtCeFlushClipboard();
 
 #endif
 
+typedef BOOL (WINAPI *PtrIsHungAppWindow)(HWND);
+
+static PtrIsHungAppWindow ptrIsHungAppWindow = 0;
 
 class QClipboardWatcher : public QInternalMimeData {
 public:
@@ -327,9 +331,16 @@ bool QClipboard::event(QEvent *e)
             d->releaseIData();
         propagate = true;
     }
-
     if (propagate && d->nextClipboardViewer) {
-        SendMessage(d->nextClipboardViewer, m->message, m->wParam, m->lParam);
+        if (ptrIsHungAppWindow == 0) {
+            QSystemLibrary library(QLatin1String("User32"));
+            ptrIsHungAppWindow = (PtrIsHungAppWindow)library.resolve("IsHungAppWindow");
+        }
+        if (ptrIsHungAppWindow && ptrIsHungAppWindow(d->nextClipboardViewer)) {
+            qWarning("%s: Cowardly refusing to send clipboard message to hung application...", Q_FUNC_INFO);
+        } else {
+            SendMessage(d->nextClipboardViewer, m->message, m->wParam, m->lParam);
+        }
     }
 
     return true;
diff --git a/src/gui/kernel/qdesktopwidget_s60.cpp b/src/gui/kernel/qdesktopwidget_s60.cpp
index 3653ae2..62a4d40 100644
--- a/src/gui/kernel/qdesktopwidget_s60.cpp
+++ b/src/gui/kernel/qdesktopwidget_s60.cpp
@@ -44,36 +44,67 @@
 #include "qwidget_p.h"
 #include "qt_s60_p.h"
 #include <w32std.h>
-
-#include "hal.h"
-#include "hal_data.h"
+#if defined(Q_SYMBIAN_SUPPORTS_MULTIPLE_SCREENS)
+#include <graphics/displaycontrol.h>
+#endif
 
 QT_BEGIN_NAMESPACE
 
-class QDesktopWidgetPrivate : public QWidgetPrivate
+extern int qt_symbian_create_desktop_on_screen;
+
+class QSingleDesktopWidget : public QWidget
+{
+public:
+    QSingleDesktopWidget();
+    ~QSingleDesktopWidget();
+};
+
+QSingleDesktopWidget::QSingleDesktopWidget()
+    : QWidget(0, Qt::Desktop)
+{
+}
+
+QSingleDesktopWidget::~QSingleDesktopWidget()
 {
+    const QObjectList &childList = children();
+    for (int i = childList.size(); i > 0 ;) {
+        --i;
+        childList.at(i)->setParent(0);
+    }
+}
 
+class QDesktopWidgetPrivate : public QWidgetPrivate
+{
 public:
     QDesktopWidgetPrivate();
     ~QDesktopWidgetPrivate();
-
     static void init(QDesktopWidget *that);
     static void cleanup();
+    static void init_sys();
 
     static int screenCount;
     static int primaryScreen;
 
     static QVector<QRect> *rects;
     static QVector<QRect> *workrects;
+    static QVector<QWidget *> *screens;
 
     static int refcount;
+
+#if defined(Q_SYMBIAN_SUPPORTS_MULTIPLE_SCREENS)
+    static MDisplayControl *displayControl;
+#endif
 };
 
 int QDesktopWidgetPrivate::screenCount = 1;
 int QDesktopWidgetPrivate::primaryScreen = 0;
 QVector<QRect> *QDesktopWidgetPrivate::rects = 0;
 QVector<QRect> *QDesktopWidgetPrivate::workrects = 0;
+QVector<QWidget *> *QDesktopWidgetPrivate::screens = 0;
 int QDesktopWidgetPrivate::refcount = 0;
+#if defined(Q_SYMBIAN_SUPPORTS_MULTIPLE_SCREENS)
+MDisplayControl *QDesktopWidgetPrivate::displayControl = 0;
+#endif
 
 QDesktopWidgetPrivate::QDesktopWidgetPrivate()
 {
@@ -88,25 +119,55 @@ QDesktopWidgetPrivate::~QDesktopWidgetPrivate()
 
 void QDesktopWidgetPrivate::init(QDesktopWidget *that)
 {
-    Q_UNUSED(that);
-//    int screenCount=0;
-
-    // ### TODO: Implement proper multi-display support
-	QDesktopWidgetPrivate::screenCount = 1;
-//    if (HAL::Get(0, HALData::EDisplayNumberOfScreens, screenCount) == KErrNone)
-//        QDesktopWidgetPrivate::screenCount = screenCount;
-//    else
-//        QDesktopWidgetPrivate::screenCount = 0;
+    // Note that on S^3 devices the screen count retrieved via RWsSession
+    // will always be 2 but the width and height for screen number 1 will
+    // be 0 as long as TV-out is not connected.
+    //
+    // On the other hand a valid size for screen 1 will be reported even
+    // after the cable is disconnected. In order to overcome this, we use
+    // MDisplayControl::NumberOfResolutions() to check if the display is
+    // valid or not.
+
+    screenCount = S60->screenCount();
+#if defined(Q_SYMBIAN_SUPPORTS_MULTIPLE_SCREENS)
+    if (displayControl) {
+        if (displayControl->NumberOfResolutions() < 1)
+            screenCount = 1;
+    }
+#endif
+    if (screenCount < 1) {
+        qWarning("No screen available");
+        screenCount = 1;
+    }
 
     rects = new QVector<QRect>();
     workrects = new QVector<QRect>();
-
-    rects->resize(QDesktopWidgetPrivate::screenCount);
-    workrects->resize(QDesktopWidgetPrivate::screenCount);
-
-    (*rects)[0].setRect(0, 0, S60->screenWidthInPixels, S60->screenHeightInPixels);
-    QRect wr = qt_TRect2QRect(static_cast<CEikAppUi*>(S60->appUi())->ClientRect());
-    (*workrects)[0].setRect(wr.x(), wr.y(), wr.width(), wr.height());
+    screens = new QVector<QWidget *>();
+
+    rects->resize(screenCount);
+    workrects->resize(screenCount);
+    screens->resize(screenCount);
+
+    for (int i = 0; i < screenCount; ++i) {
+        // All screens will have a position of (0, 0) as there is no true virtual desktop
+        // or pointer event support for multiple screens on Symbian.
+        QRect r(0, 0,
+            S60->screenWidthInPixelsForScreen[i], S60->screenHeightInPixelsForScreen[i]);
+        // Stop here if empty and ignore this screen.
+        if (r.isEmpty()) {
+            screenCount = i;
+            break;
+        }
+        (*rects)[i] = r;
+        QRect wr;
+        if (i == 0)
+            wr = qt_TRect2QRect(static_cast<CEikAppUi*>(S60->appUi())->ClientRect());
+        else
+            wr = rects->at(i);
+        (*workrects)[i].setRect(wr.x(), wr.y(), wr.width(), wr.height());
+        (*screens)[i] = 0;
+    }
+    (*screens)[0] = that;
 }
 
 void QDesktopWidgetPrivate::cleanup()
@@ -115,6 +176,29 @@ void QDesktopWidgetPrivate::cleanup()
     rects = 0;
     delete workrects;
     workrects = 0;
+    if (screens) {
+        // First item is the QDesktopWidget so skip it.
+        for (int i = 1; i < screens->count(); ++i)
+            delete screens->at(i);
+    }
+    delete screens;
+    screens = 0;
+}
+
+void QDesktopWidgetPrivate::init_sys()
+{
+#if defined(Q_SYMBIAN_SUPPORTS_MULTIPLE_SCREENS)
+    if (S60->screenCount() > 1) {
+        CWsScreenDevice *dev = S60->screenDevice(1);
+        if (dev) {
+            displayControl = static_cast<MDisplayControl *>(
+                        dev->GetInterface(MDisplayControl::ETypeId));
+            if (displayControl) {
+                displayControl->EnableDisplayChangeEvents(ETrue);
+            }
+        }
+    }
+#endif
 }
 
 
@@ -122,6 +206,7 @@ QDesktopWidget::QDesktopWidget()
     : QWidget(*new QDesktopWidgetPrivate, 0, Qt::Desktop)
 {
     setObjectName(QLatin1String("desktop"));
+    QDesktopWidgetPrivate::init_sys();
     QDesktopWidgetPrivate::init(this);
 }
 
@@ -131,7 +216,7 @@ QDesktopWidget::~QDesktopWidget()
 
 bool QDesktopWidget::isVirtualDesktop() const
 {
-    return true;
+    return false;
 }
 
 int QDesktopWidget::primaryScreen() const
@@ -145,9 +230,23 @@ int QDesktopWidget::numScreens() const
     return QDesktopWidgetPrivate::screenCount;
 }
 
-QWidget *QDesktopWidget::screen(int /* screen */)
+static inline QWidget *newSingleDesktopWidget(int screen)
 {
-    return this;
+    qt_symbian_create_desktop_on_screen = screen;
+    QWidget *w = new QSingleDesktopWidget;
+    qt_symbian_create_desktop_on_screen = -1;
+    return w;
+}
+
+QWidget *QDesktopWidget::screen(int screen)
+{
+    Q_D(QDesktopWidget);
+    if (screen < 0 || screen >= d->screenCount)
+        screen = d->primaryScreen;
+    if (!d->screens->at(screen)
+        || d->screens->at(screen)->windowType() != Qt::Desktop)
+        (*d->screens)[screen] = newSingleDesktopWidget(screen);
+    return (*d->screens)[screen];
 }
 
 const QRect QDesktopWidget::availableGeometry(int screen) const
@@ -168,14 +267,19 @@ const QRect QDesktopWidget::screenGeometry(int screen) const
     return d->rects->at(screen);
 }
 
-int QDesktopWidget::screenNumber(const QWidget * /* widget */) const
+int QDesktopWidget::screenNumber(const QWidget *widget) const
 {
-    return QDesktopWidgetPrivate::primaryScreen;
+    Q_D(const QDesktopWidget);
+    return widget
+        ? S60->screenNumberForWidget(widget)
+        : d->primaryScreen;
 }
 
-int QDesktopWidget::screenNumber(const QPoint & /* point */) const
+int QDesktopWidget::screenNumber(const QPoint &point) const
 {
-    return QDesktopWidgetPrivate::primaryScreen;
+    Q_UNUSED(point);
+    Q_D(const QDesktopWidget);
+    return d->primaryScreen;
 }
 
 void QDesktopWidget::resizeEvent(QResizeEvent *)
@@ -203,6 +307,10 @@ void QDesktopWidget::resizeEvent(QResizeEvent *)
         if (oldrect != newrect)
             emit workAreaResized(j);
     }
+
+    if (oldscreencount != d->screenCount) {
+        emit screenCountChanged(d->screenCount);
+    }
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/kernel/qt_s60_p.h b/src/gui/kernel/qt_s60_p.h
index 40697bf..3bb27c3 100644
--- a/src/gui/kernel/qt_s60_p.h
+++ b/src/gui/kernel/qt_s60_p.h
@@ -64,6 +64,7 @@
 #include "qapplication.h"
 #include "qelapsedtimer.h"
 #include "QtCore/qthreadstorage.h"
+#include "qwidget_p.h"
 #include <w32std.h>
 #include <coecntrl.h>
 #include <eikenv.h>
@@ -84,6 +85,8 @@ QT_BEGIN_NAMESPACE
 // system events seems to start with 0x10
 const TInt KInternalStatusPaneChange = 0x50000000;
 
+static const int qt_symbian_max_screens = 4;
+
 //this macro exists because EColor16MAP enum value doesn't exist in Symbian OS 9.2
 #define Q_SYMBIAN_ECOLOR16MAP TDisplayMode(13)
 
@@ -142,7 +145,10 @@ public:
     int avkonComponentsSupportTransparency : 1;
     int menuBeingConstructed : 1;
     int orientationSet : 1;
+    int partial_keyboard : 1;
     QApplication::QS60MainApplicationFactory s60ApplicationFactory; // typedef'ed pointer type
+    QPointer<QWidget> splitViewLastWidget;
+
     static CEikButtonGroupContainer *cba;
 
     enum ScanCodeState {
@@ -154,8 +160,14 @@ public:
 
     static inline void updateScreenSize();
     inline RWsSession& wsSession();
+    static inline int screenCount();
     static inline RWindowGroup& windowGroup();
+    static inline RWindowGroup& windowGroup(const QWidget *widget);
+    static inline RWindowGroup& windowGroup(int screenNumber);
     inline CWsScreenDevice* screenDevice();
+    inline CWsScreenDevice* screenDevice(const QWidget *widget);
+    inline CWsScreenDevice* screenDevice(int screenNumber);
+    static inline int screenNumberForWidget(const QWidget *widget);
     static inline CCoeAppUi* appUi();
     static inline CEikMenuBar* menuBar();
 #ifdef Q_WS_S60
@@ -172,6 +184,11 @@ public:
 #ifdef Q_OS_SYMBIAN
     TTrapHandler *s60InstalledTrapHandler;
 #endif
+
+    int screenWidthInPixelsForScreen[qt_symbian_max_screens];
+    int screenHeightInPixelsForScreen[qt_symbian_max_screens];
+    int screenWidthInTwipsForScreen[qt_symbian_max_screens];
+    int screenHeightInTwipsForScreen[qt_symbian_max_screens];
 };
 
 Q_AUTOTEST_EXPORT QS60Data* qGlobalS60Data();
@@ -252,6 +269,7 @@ private:
 #ifdef QT_SYMBIAN_SUPPORTS_ADVANCED_POINTER
     void translateAdvancedPointerEvent(const TAdvancedPointerEvent *event);
 #endif
+    bool isSplitViewWidget(QWidget *widget);
 
 public:
     void handleClientAreaChange();
@@ -270,6 +288,8 @@ private:
     // Fader object used to fade everything except this menu and the CBA.
     TAknPopupFader popupFader;
 #endif
+
+    bool m_inExternalScreenOverride : 1;
 };
 
 inline QS60Data::QS60Data()
@@ -297,6 +317,7 @@ inline QS60Data::QS60Data()
   avkonComponentsSupportTransparency(0),
   menuBeingConstructed(0),
   orientationSet(0),
+  partial_keyboard(0),
   s60ApplicationFactory(0)
 #ifdef Q_OS_SYMBIAN
   ,s60InstalledTrapHandler(0)
@@ -320,6 +341,17 @@ inline void QS60Data::updateScreenSize()
     S60->defaultDpiY = S60->screenHeightInPixels / inches;
     inches = S60->screenWidthInTwips / (TReal)KTwipsPerInch;
     S60->defaultDpiX = S60->screenWidthInPixels / inches;
+
+    int screens = S60->screenCount();
+    for (int i = 0; i < screens; ++i) {
+        CWsScreenDevice *dev = S60->screenDevice(i);
+        mode = dev->CurrentScreenMode();
+        dev->GetScreenModeSizeAndRotation(mode, params);
+        S60->screenWidthInPixelsForScreen[i] = params.iPixelSize.iWidth;
+        S60->screenHeightInPixelsForScreen[i] = params.iPixelSize.iHeight;
+        S60->screenWidthInTwipsForScreen[i] = params.iTwipsSize.iWidth;
+        S60->screenHeightInTwipsForScreen[i] = params.iTwipsSize.iHeight;
+    }
 }
 
 inline RWsSession& QS60Data::wsSession()
@@ -330,11 +362,38 @@ inline RWsSession& QS60Data::wsSession()
     return tls.localData()->wsSession;
 }
 
+inline int QS60Data::screenCount()
+{
+#if defined(Q_SYMBIAN_SUPPORTS_MULTIPLE_SCREENS)
+    CCoeEnv *env = CCoeEnv::Static();
+    if (env) {
+        return qMin(env->WsSession().NumberOfScreens(), qt_symbian_max_screens);
+    }
+#endif
+    return 1;
+}
+
 inline RWindowGroup& QS60Data::windowGroup()
 {
     return CCoeEnv::Static()->RootWin();
 }
 
+inline RWindowGroup& QS60Data::windowGroup(const QWidget *widget)
+{
+    return windowGroup(screenNumberForWidget(widget));
+}
+
+inline RWindowGroup& QS60Data::windowGroup(int screenNumber)
+{
+#if defined(Q_SYMBIAN_SUPPORTS_MULTIPLE_SCREENS)
+    RWindowGroup *wg = CCoeEnv::Static()->RootWin(screenNumber);
+    return wg ? *wg : windowGroup();
+#else
+    Q_UNUSED(screenNumber);
+    return windowGroup();
+#endif
+}
+
 inline CWsScreenDevice* QS60Data::screenDevice()
 {
     if(!tls.hasLocalData()) {
@@ -343,6 +402,36 @@ inline CWsScreenDevice* QS60Data::screenDevice()
     return tls.localData()->screenDevice;
 }
 
+inline CWsScreenDevice* QS60Data::screenDevice(const QWidget *widget)
+{
+    return screenDevice(screenNumberForWidget(widget));
+}
+
+inline CWsScreenDevice* QS60Data::screenDevice(int screenNumber)
+{
+#if defined(Q_SYMBIAN_SUPPORTS_MULTIPLE_SCREENS)
+    CCoeEnv *env = CCoeEnv::Static();
+    if (env) {
+        CWsScreenDevice *dev = env->ScreenDevice(screenNumber);
+        return dev ? dev : screenDevice();
+    } else {
+        return screenDevice();
+    }
+#else
+    return screenDevice();
+#endif
+}
+
+inline int QS60Data::screenNumberForWidget(const QWidget *widget)
+{
+    if (!widget)
+        return 0;
+    const QWidget *w = widget;
+    while (w->parentWidget())
+        w = w->parentWidget();
+    return qt_widget_private(const_cast<QWidget *>(w))->symbianScreenNumber;
+}
+
 inline CCoeAppUi* QS60Data::appUi()
 {
     return CCoeEnv::Static()-> AppUi();
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 7065e85..e8d9efd 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -304,6 +304,8 @@ QWidgetPrivate::QWidgetPrivate(int version)
       , hasAlienChildren(0)
       , window_event(0)
       , qd_hd(0)
+#elif defined(Q_OS_SYMBIAN)
+      , symbianScreenNumber(0)
 #endif
 {
     if (!qApp) {
@@ -1284,6 +1286,10 @@ void QWidgetPrivate::init(QWidget *parentWidget, Qt::WindowFlags f)
         // programmer specified desktop widget
         xinfo = desktopWidget->d_func()->xinfo;
     }
+#elif defined(Q_OS_SYMBIAN)
+    if (desktopWidget) {
+        symbianScreenNumber = qt_widget_private(desktopWidget)->symbianScreenNumber;
+    }
 #else
     Q_UNUSED(desktopWidget);
 #endif
@@ -1320,8 +1326,8 @@ void QWidgetPrivate::init(QWidget *parentWidget, Qt::WindowFlags f)
     //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);
+        // Don't waste GPU mem for unnecessary large egl surface until resized by application
+        data.crect = QRect(0,0,1,1);
     } else {
         data.crect = parentWidget ? QRect(0,0,100,30) : QRect(0,0,360,640);
     }
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index 9f6ba6f..13e2349 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -315,6 +315,11 @@ struct QWExtra {
          */
         ZeroFill,
 
+        /**
+         * Blit backing store, propagating alpha channel into the framebuffer.
+         */
+        BlitWriteAlpha,
+
         Default = Blit
     };
 
@@ -877,6 +882,7 @@ public:
 #elif defined(Q_OS_SYMBIAN) // <--------------------------------------------------------- SYMBIAN
     static QWidget *mouseGrabber;
     static QWidget *keyboardGrabber;
+    int symbianScreenNumber; // only valid for desktop widget and top-levels
     void s60UpdateIsOpaque();
     void reparentChildren();
     void registerTouchWindow();
diff --git a/src/gui/kernel/qwidget_s60.cpp b/src/gui/kernel/qwidget_s60.cpp
index af9ae47..b65ae4d 100644
--- a/src/gui/kernel/qwidget_s60.cpp
+++ b/src/gui/kernel/qwidget_s60.cpp
@@ -84,6 +84,8 @@ QWidget *QWidgetPrivate::mouseGrabber = 0;
 QWidget *QWidgetPrivate::keyboardGrabber = 0;
 CEikButtonGroupContainer *QS60Data::cba = 0;
 
+int qt_symbian_create_desktop_on_screen = -1;
+
 static bool isEqual(const QList<QAction*>& a, const QList<QAction*>& b)
 {
     if ( a.count() != b.count())
@@ -349,12 +351,18 @@ void QWidgetPrivate::create_sys(WId window, bool /* initializeWindow */, bool de
     int sh = clientRect.Height();
 
     if (desktop) {
-        TSize screenSize = S60->screenDevice()->SizeInPixels();
+        symbianScreenNumber = qMax(qt_symbian_create_desktop_on_screen, 0);
+        TSize screenSize = S60->screenDevice(symbianScreenNumber)->SizeInPixels();
         data.crect.setRect(0, 0, screenSize.iWidth, screenSize.iHeight);
         q->setAttribute(Qt::WA_DontShowOnScreen);
     } else if (topLevel && !q->testAttribute(Qt::WA_Resized)){
         int width = sw;
         int height = sh;
+        if (symbianScreenNumber > 0) {
+            TSize screenSize = S60->screenDevice(symbianScreenNumber)->SizeInPixels();
+            width = screenSize.iWidth;
+            height = screenSize.iHeight;
+        }
         if (extra) {
             width = qMax(qMin(width, extra->maxw), extra->minw);
             height = qMax(qMin(height, extra->maxh), extra->minh);
@@ -640,7 +648,7 @@ void QWidgetPrivate::raise_sys()
 
         // If toplevel widget, raise app to foreground
         if (q->isWindow())
-            S60->wsSession().SetWindowGroupOrdinalPosition(S60->windowGroup().Identifier(), 0);
+            S60->wsSession().SetWindowGroupOrdinalPosition(S60->windowGroup(q).Identifier(), 0);
     }
 }
 
@@ -652,7 +660,7 @@ void QWidgetPrivate::lower_sys()
     if (q->internalWinId()) {
         // If toplevel widget, lower app to background
         if (q->isWindow())
-            S60->wsSession().SetWindowGroupOrdinalPosition(S60->windowGroup().Identifier(), -1);
+            S60->wsSession().SetWindowGroupOrdinalPosition(S60->windowGroup(q).Identifier(), -1);
         else
             q->internalWinId()->DrawableWindow()->SetOrdinalPosition(-1);
     }
@@ -722,6 +730,11 @@ void QWidgetPrivate::setParent_sys(QWidget *parent, Qt::WindowFlags f)
 {
     Q_Q(QWidget);
 
+    if (parent && parent->windowType() == Qt::Desktop) {
+        symbianScreenNumber = qt_widget_private(parent)->symbianScreenNumber;
+        parent = 0;
+    }
+
     bool wasCreated = q->testAttribute(Qt::WA_WState_Created);
 
     if (q->isVisible() && q->parentWidget() && parent != q->parentWidget())
@@ -792,25 +805,33 @@ void QWidgetPrivate::s60UpdateIsOpaque()
 {
     Q_Q(QWidget);
 
-    if (!q->testAttribute(Qt::WA_WState_Created) || !q->testAttribute(Qt::WA_TranslucentBackground))
+    if (!q->testAttribute(Qt::WA_WState_Created))
         return;
 
+    const bool writeAlpha = extraData()->nativePaintMode == QWExtra::BlitWriteAlpha;
+    if (!q->testAttribute(Qt::WA_TranslucentBackground) && !writeAlpha)
+        return;
+    const bool requireAlphaChannel = !isOpaque || writeAlpha;
+
     createTLExtra();
 
     RWindow *const window = static_cast<RWindow *>(q->effectiveWinId()->DrawableWindow());
 
 #ifdef Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE
-    window->SetSurfaceTransparency(!isOpaque);
-    extra->topextra->nativeWindowTransparencyEnabled = !isOpaque;
-#else
-    if (!isOpaque) {
+    if (QApplicationPrivate::instance()->useTranslucentEGLSurfaces) {
+        window->SetSurfaceTransparency(!isOpaque);
+        extra->topextra->nativeWindowTransparencyEnabled = !isOpaque;
+        return;
+    }
+#endif
+    if (requireAlphaChannel) {
         const TDisplayMode displayMode = static_cast<TDisplayMode>(window->SetRequiredDisplayMode(EColor16MA));
         if (window->SetTransparencyAlphaChannel() == KErrNone) {
             window->SetBackgroundColor(TRgb(255, 255, 255, 0));
             extra->topextra->nativeWindowTransparencyEnabled = 1;
-
-            if (extra->topextra->backingStore.data() &&
-                    QApplicationPrivate::graphics_system_name == QLatin1String("openvg")) {
+            if (extra->topextra->backingStore.data() && (
+                    QApplicationPrivate::graphics_system_name == QLatin1String("openvg")
+                    || QApplicationPrivate::graphics_system_name == QLatin1String("opengl"))) {
                 // Semi-transparent EGL surfaces aren't supported. We need to
                 // recreate backing store to get translucent surface (raster surface).
                 extra->topextra->backingStore.create(q);
@@ -821,7 +842,6 @@ void QWidgetPrivate::s60UpdateIsOpaque()
         window->SetTransparentRegion(TRegionFix<1>());
         extra->topextra->nativeWindowTransparencyEnabled = 0;
     }
-#endif
 }
 
 void QWidgetPrivate::setWindowIcon_sys(bool forceReset)
@@ -1037,7 +1057,7 @@ int QWidget::metric(PaintDeviceMetric m) const
     } else if (m == PdmHeight) {
         val = data->crect.height();
     } else {
-        CWsScreenDevice *scr = S60->screenDevice();
+        CWsScreenDevice *scr = S60->screenDevice(this);
         switch(m) {
         case PdmDpiX:
         case PdmPhysicalDpiX:
@@ -1207,7 +1227,16 @@ void QWidget::setWindowState(Qt::WindowStates newstate)
         const bool cbaVisibilityHint = windowFlags() & Qt::WindowSoftkeysVisibleHint;
         if (newstate & Qt::WindowFullScreen && !cbaVisibilityHint) {
             setAttribute(Qt::WA_OutsideWSRange, false);
-            window->SetExtentToWholeScreen();
+            if (d->symbianScreenNumber > 0) {
+                int w = S60->screenWidthInPixelsForScreen[d->symbianScreenNumber];
+                int h = S60->screenHeightInPixelsForScreen[d->symbianScreenNumber];
+                if (w <= 0 || h <= 0)
+                    window->SetExtentToWholeScreen();
+                else
+                    window->SetExtent(TPoint(0, 0), TSize(w, h));
+            } else {
+                window->SetExtentToWholeScreen();
+            }
         } else if (newstate & Qt::WindowMaximized || ((newstate & Qt::WindowFullScreen) && cbaVisibilityHint)) {
             setAttribute(Qt::WA_OutsideWSRange, false);
             TRect maxExtent = qt_QRect2TRect(qApp->desktop()->availableGeometry(this));
diff --git a/src/gui/math3d/qvector2d.cpp b/src/gui/math3d/qvector2d.cpp
index 7f5a937..1fccfc9 100644
--- a/src/gui/math3d/qvector2d.cpp
+++ b/src/gui/math3d/qvector2d.cpp
@@ -60,6 +60,11 @@ QT_BEGIN_NAMESPACE
     The QVector2D class can also be used to represent vertices in 2D space.
     We therefore do not need to provide a separate vertex class.
 
+    \bold{Note:} By design values in the QVector2D instance are stored as \c float.
+    This means that on platforms where the \c qreal arguments to QVector2D
+    functions are represented by \c double values, it is possible to
+    lose precision.
+
     \sa QVector3D, QVector4D, QQuaternion
 */
 
diff --git a/src/gui/math3d/qvector3d.cpp b/src/gui/math3d/qvector3d.cpp
index 2414b5f..7bf0400 100644
--- a/src/gui/math3d/qvector3d.cpp
+++ b/src/gui/math3d/qvector3d.cpp
@@ -63,6 +63,11 @@ QT_BEGIN_NAMESPACE
     The QVector3D class can also be used to represent vertices in 3D space.
     We therefore do not need to provide a separate vertex class.
 
+    \bold{Note:} By design values in the QVector3D instance are stored as \c float.
+    This means that on platforms where the \c qreal arguments to QVector3D
+    functions are represented by \c double values, it is possible to
+    lose precision.
+
     \sa QVector2D, QVector4D, QQuaternion
 */
 
diff --git a/src/gui/math3d/qvector4d.cpp b/src/gui/math3d/qvector4d.cpp
index 74dedc4..23befc0 100644
--- a/src/gui/math3d/qvector4d.cpp
+++ b/src/gui/math3d/qvector4d.cpp
@@ -59,6 +59,11 @@ QT_BEGIN_NAMESPACE
     The QVector4D class can also be used to represent vertices in 4D space.
     We therefore do not need to provide a separate vertex class.
 
+    \bold{Note:} By design values in the QVector4D instance are stored as \c float.
+    This means that on platforms where the \c qreal arguments to QVector4D
+    functions are represented by \c double values, it is possible to
+    lose precision.
+
     \sa QQuaternion, QVector2D, QVector3D
 */
 
diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp
index 83c58c4..4fcff1d 100644
--- a/src/gui/painting/qbackingstore.cpp
+++ b/src/gui/painting/qbackingstore.cpp
@@ -1117,6 +1117,11 @@ void QWidgetBackingStore::sync(QWidget *exposedWidget, const QRegion &exposedReg
         return;
     }
 
+    // If there's no partial update support we always need
+    // to do a full repaint before flushing
+    if (!windowSurface->hasPartialUpdateSupport())
+        fullUpdatePending = true;
+
     // Nothing to repaint.
     if (!isDirty()) {
         qt_flush(exposedWidget, exposedRegion, windowSurface, tlw, tlwOffset);
diff --git a/src/gui/painting/qgraphicssystem.cpp b/src/gui/painting/qgraphicssystem.cpp
index 770d947..5112019 100644
--- a/src/gui/painting/qgraphicssystem.cpp
+++ b/src/gui/painting/qgraphicssystem.cpp
@@ -84,4 +84,9 @@ QPixmapData *QGraphicsSystem::createPixmapData(QPixmapData *origin)
     return createPixmapData(origin->pixelType());
 }
 
+void QGraphicsSystem::releaseCachedResources()
+{
+    // Do nothing here
+}
+
 QT_END_NAMESPACE
diff --git a/src/gui/painting/qgraphicssystem_p.h b/src/gui/painting/qgraphicssystem_p.h
index 76e9a8e..80e8959 100644
--- a/src/gui/painting/qgraphicssystem_p.h
+++ b/src/gui/painting/qgraphicssystem_p.h
@@ -72,6 +72,8 @@ public:
     //### Remove this & change qpixmap.cpp & qbitmap.cpp once every platform is gaurenteed
     //    to have a graphics system.
     static QPixmapData *createDefaultPixmapData(QPixmapData::PixelType type);
+
+    virtual void releaseCachedResources();
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/painting/qgraphicssystem_runtime.cpp b/src/gui/painting/qgraphicssystem_runtime.cpp
index 5841d40..33652ee 100644
--- a/src/gui/painting/qgraphicssystem_runtime.cpp
+++ b/src/gui/painting/qgraphicssystem_runtime.cpp
@@ -394,7 +394,10 @@ void QRuntimeGraphicsSystem::setGraphicsSystem(const QString &name)
         if(m_windowSurfaceDestroyPolicy == DestroyAfterFirstFlush)
             proxy->m_pendingWindowSurface.reset(proxy->m_windowSurface.take());
 
-        proxy->m_windowSurface.reset(m_graphicsSystem->createWindowSurface(widget));
+        QWindowSurface *newWindowSurface = m_graphicsSystem->createWindowSurface(widget);
+        newWindowSurface->setGeometry(proxy->geometry());
+
+        proxy->m_windowSurface.reset(newWindowSurface);
         qt_widget_private(widget)->invalidateBuffer(widget->rect());
     }
 
diff --git a/src/gui/painting/qpaintengine_s60.cpp b/src/gui/painting/qpaintengine_s60.cpp
index 1bc7799..ca303be 100644
--- a/src/gui/painting/qpaintengine_s60.cpp
+++ b/src/gui/painting/qpaintengine_s60.cpp
@@ -41,6 +41,7 @@
 #include <private/qpaintengine_s60_p.h>
 #include <private/qpixmap_s60_p.h>
 #include <private/qt_s60_p.h>
+#include <private/qvolatileimage_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -90,7 +91,15 @@ void QS60PaintEngine::drawPixmap(const QPointF &p, const QPixmap &pm)
         QRasterPaintEngine::drawPixmap(p, pm);
         srcData->endDataAccess();
     } else {
-        QRasterPaintEngine::drawPixmap(p, pm);
+        void *nativeData = pm.pixmapData()->toNativeType(QPixmapData::VolatileImage);
+        if (nativeData) {
+            QVolatileImage *img = static_cast<QVolatileImage *>(nativeData);
+            img->beginDataAccess();
+            QRasterPaintEngine::drawImage(p, img->imageRef());
+            img->endDataAccess(true);
+        } else {
+            QRasterPaintEngine::drawPixmap(p, pm);
+        }
     }
 }
 
@@ -102,7 +111,15 @@ void QS60PaintEngine::drawPixmap(const QRectF &r, const QPixmap &pm, const QRect
         QRasterPaintEngine::drawPixmap(r, pm, sr);
         srcData->endDataAccess();
     } else {
-        QRasterPaintEngine::drawPixmap(r, pm, sr);
+        void *nativeData = pm.pixmapData()->toNativeType(QPixmapData::VolatileImage);
+        if (nativeData) {
+            QVolatileImage *img = static_cast<QVolatileImage *>(nativeData);
+            img->beginDataAccess();
+            QRasterPaintEngine::drawImage(r, img->imageRef(), sr);
+            img->endDataAccess(true);
+        } else {
+            QRasterPaintEngine::drawPixmap(r, pm, sr);
+        }
     }
 }
 
diff --git a/src/gui/painting/qpainterpath.cpp b/src/gui/painting/qpainterpath.cpp
index 9ef6955..0948a64 100644
--- a/src/gui/painting/qpainterpath.cpp
+++ b/src/gui/painting/qpainterpath.cpp
@@ -1690,7 +1690,7 @@ static void qt_painterpath_isect_line(const QPointF &p1,
 }
 
 static void qt_painterpath_isect_curve(const QBezier &bezier, const QPointF &pt,
-                                       int *winding)
+                                       int *winding, int depth = 0)
 {
     qreal y = pt.y();
     qreal x = pt.x();
@@ -1705,7 +1705,7 @@ static void qt_painterpath_isect_curve(const QBezier &bezier, const QPointF &pt,
         // hit lower limit... This is a rough threshold, but its a
         // tradeoff between speed and precision.
         const qreal lower_bound = qreal(.001);
-        if (bounds.width() < lower_bound && bounds.height() < lower_bound) {
+        if (depth == 32 || (bounds.width() < lower_bound && bounds.height() < lower_bound)) {
             // We make the assumption here that the curve starts to
             // approximate a line after while (i.e. that it doesn't
             // change direction drastically during its slope)
@@ -1718,8 +1718,8 @@ static void qt_painterpath_isect_curve(const QBezier &bezier, const QPointF &pt,
         // split curve and try again...
         QBezier first_half, second_half;
         bezier.split(&first_half, &second_half);
-        qt_painterpath_isect_curve(first_half, pt, winding);
-        qt_painterpath_isect_curve(second_half, pt, winding);
+        qt_painterpath_isect_curve(first_half, pt, winding, depth + 1);
+        qt_painterpath_isect_curve(second_half, pt, winding, depth + 1);
     }
 }
 
diff --git a/src/gui/painting/qwindowsurface_s60.cpp b/src/gui/painting/qwindowsurface_s60.cpp
index 9f371a8..cb53ea0 100644
--- a/src/gui/painting/qwindowsurface_s60.cpp
+++ b/src/gui/painting/qwindowsurface_s60.cpp
@@ -63,7 +63,6 @@ struct QS60WindowSurfacePrivate
 
 TDisplayMode displayMode(bool opaque)
 {
-
     TDisplayMode mode = S60->screenDevice()->DisplayMode();
     if (opaque) {
         mode = EColor16MU;
@@ -76,10 +75,18 @@ TDisplayMode displayMode(bool opaque)
     return mode;
 }
 
+bool blitWriteAlpha(QWidgetPrivate *widgetPrivate)
+{
+    QWExtra *extra = widgetPrivate->extraData();
+    return extra ? extra->nativePaintMode == QWExtra::BlitWriteAlpha : false;
+}
+
 QS60WindowSurface::QS60WindowSurface(QWidget* widget)
     : QWindowSurface(widget), d_ptr(new QS60WindowSurfacePrivate)
 {
-    TDisplayMode mode = displayMode(qt_widget_private(widget)->isOpaque);
+    QWidgetPrivate *widgetPrivate = qt_widget_private(widget);
+    const bool opaque = widgetPrivate->isOpaque && !blitWriteAlpha(widgetPrivate);
+    TDisplayMode mode = displayMode(opaque);
     // We create empty CFbsBitmap here -> it will be resized in setGeometry
     CFbsBitmap *bitmap = q_check_ptr(new CFbsBitmap);	// CBase derived object needs check on new
     qt_symbian_throwIfError( bitmap->Create( TSize(0, 0), mode ) );
@@ -123,7 +130,8 @@ void QS60WindowSurface::beginPaint(const QRegion &rgn)
     S60->wsSession().Finish();
 #endif
 
-    if (!qt_widget_private(window())->isOpaque) {
+    QWidgetPrivate *windowPrivate = qt_widget_private(window());
+    if (!windowPrivate->isOpaque || blitWriteAlpha(windowPrivate)) {
         QS60PixmapData *pixmapData = static_cast<QS60PixmapData *>(d_ptr->device.data_ptr().data());
 
         TDisplayMode mode = displayMode(false);
@@ -132,12 +140,14 @@ void QS60WindowSurface::beginPaint(const QRegion &rgn)
 
         pixmapData->beginDataAccess();
 
-        QPainter p(&pixmapData->image);
-        p.setCompositionMode(QPainter::CompositionMode_Source);
-        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);
+        if (!windowPrivate->isOpaque) {
+            QPainter p(&pixmapData->image);
+            p.setCompositionMode(QPainter::CompositionMode_Source);
+            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);
+            }
         }
 
         pixmapData->endDataAccess();
diff --git a/src/gui/styles/qs60style.cpp b/src/gui/styles/qs60style.cpp
index 38a4b7c..a9e10a3 100644
--- a/src/gui/styles/qs60style.cpp
+++ b/src/gui/styles/qs60style.cpp
@@ -118,6 +118,7 @@ const short *QS60StylePrivate::m_pmPointer = QS60StylePrivate::data[0];
 
 // theme background texture
 QPixmap *QS60StylePrivate::m_background = 0;
+QPixmap *QS60StylePrivate::m_placeHolderTexture = 0;
 
 // theme palette
 QPalette *QS60StylePrivate::m_themePalette = 0;
@@ -155,6 +156,10 @@ const double KTabFontMul = 0.72;
 QS60StylePrivate::~QS60StylePrivate()
 {
     clearCaches(); //deletes also background image
+    if (m_placeHolderTexture) {
+        delete m_placeHolderTexture;
+        m_placeHolderTexture = 0;
+    }
     deleteThemePalette();
 #ifdef Q_WS_S60
     removeAnimations();
@@ -505,7 +510,10 @@ void QS60StylePrivate::setBackgroundTexture(QApplication *app) const
 {
     Q_UNUSED(app)
     QPalette applicationPalette = QApplication::palette();
-    applicationPalette.setBrush(QPalette::Window, backgroundTexture());
+    // The initial QPalette::Window is just a placeHolder QPixmap to save RAM
+    // if the actual texture is not needed. The real texture is created just before
+    // painting it in qt_s60_fill_background().
+    applicationPalette.setBrush(QPalette::Window, placeHolderTexture());
     setThemePalette(&applicationPalette);
 }
 
@@ -630,25 +638,6 @@ QPixmap QS60StylePrivate::cachedFrame(SkinFrameElements frame, const QSize &size
     return result;
 }
 
-void QS60StylePrivate::refreshUI()
-{
-    QList<QWidget *> widgets = QApplication::allWidgets();
-
-    for (int i = 0; i < widgets.size(); ++i) {
-        QWidget *widget = widgets.at(i);
-        if (widget == 0)
-            continue;
-
-        if (widget->style()) {
-            widget->style()->polish(widget);
-            QEvent event(QEvent::StyleChange);
-            qApp->sendEvent(widget, &event);
-        }
-        widget->update();
-        widget->updateGeometry();
-    }
-}
-
 void QS60StylePrivate::setFont(QWidget *widget) const
 {
     QS60StyleEnums::FontCategories fontCategory = QS60StyleEnums::FC_Undefined;
@@ -678,7 +667,7 @@ void QS60StylePrivate::setFont(QWidget *widget) const
     }
 }
 
-void QS60StylePrivate::setThemePalette(QWidget *widget) const
+void QS60StylePrivate::setThemePalette(QWidget *widget)
 {
     if(!widget)
         return;
@@ -719,8 +708,10 @@ void QS60StylePrivate::setThemePalette(QPalette *palette) const
     palette->setColor(QPalette::LinkVisited, palette->color(QPalette::Link).darker());
     palette->setColor(QPalette::Highlight,
         s60Color(QS60StyleEnums::CL_QsnHighlightColors, 2, 0));
-    // set background image as a texture brush
-    palette->setBrush(QPalette::Window, backgroundTexture());
+    // The initial QPalette::Window is just a placeHolder QPixmap to save RAM
+    // if the actual texture is not needed. The real texture is created just before
+    // painting it in qt_s60_fill_background().
+    palette->setBrush(QPalette::Window, placeHolderTexture());
     // set as transparent so that styled full screen theme background is visible
     palette->setBrush(QPalette::Base, Qt::transparent);
     // set button color based on pixel colors
@@ -761,7 +752,7 @@ void QS60StylePrivate::storeThemePalette(QPalette *palette)
 }
 
 // set widget specific palettes
-void QS60StylePrivate::setThemePaletteHash(QPalette *palette) const
+void QS60StylePrivate::setThemePaletteHash(QPalette *palette)
 {
     if (!palette)
         return;
@@ -2643,10 +2634,13 @@ QSize QS60Style::sizeFromContents(ContentsType ct, const QStyleOption *opt,
             sz = QCommonStyle::sizeFromContents( ct, opt, csz, widget);
             //native items have small empty areas at the beginning and end of menu item
             sz.setWidth(sz.width() + 2 * pixelMetric(PM_MenuHMargin) + 2 * QS60StylePrivate::pixelMetric(PM_FrameCornerWidth));
-            if (QS60StylePrivate::isTouchSupported())
+            if (QS60StylePrivate::isTouchSupported()) {
                 //Make itemview easier to use in touch devices
+                sz.setHeight(sz.height() + 2 * pixelMetric(PM_FocusFrameVMargin));
                 //QCommonStyle does not adjust height with horizontal margin, it only adjusts width
-                sz.setHeight(sz.height() + 2 * pixelMetric(PM_FocusFrameVMargin) - 8); //QCommonstyle adds 8 to height that this style handles through PM values
+                if (ct == CT_MenuItem)
+                    sz.setHeight(sz.height() - 8); //QCommonstyle adds 8 to height that this style handles through PM values
+            }
             break;
 #ifndef QT_NO_COMBOBOX
         case CT_ComboBox: {
@@ -3545,10 +3539,18 @@ extern QPoint qt_s60_fill_background_offset(const QWidget *targetWidget);
 
 bool qt_s60_fill_background(QPainter *painter, const QRegion &rgn, const QBrush &brush)
 {
-    const QPixmap backgroundTexture(QS60StylePrivate::backgroundTexture());
-    if (backgroundTexture.cacheKey() != brush.texture().cacheKey())
+    // Check if the widget's palette matches placeholder or actual background texture.
+    // When accessing backgroundTexture, use parameter value 'true' to avoid creating
+    // the texture, if it is not already created.
+
+    const QPixmap placeHolder(QS60StylePrivate::placeHolderTexture());
+    const QPixmap bg(QS60StylePrivate::backgroundTexture(true));
+    if (placeHolder.cacheKey() != brush.texture().cacheKey()
+        && bg.cacheKey() != brush.texture().cacheKey())
         return false;
 
+    const QPixmap backgroundTexture(QS60StylePrivate::backgroundTexture());
+
     const QPaintDevice *target = painter->device();
     if (target->devType() == QInternal::Widget) {
         const QWidget *widget = static_cast<const QWidget *>(target);
diff --git a/src/gui/styles/qs60style_p.h b/src/gui/styles/qs60style_p.h
index 242c451..3628b27 100644
--- a/src/gui/styles/qs60style_p.h
+++ b/src/gui/styles/qs60style_p.h
@@ -554,7 +554,8 @@ public:
 
     static QPixmap frame(SkinFrameElements frame, const QSize &size,
         SkinElementFlags flags = KDefaultSkinElementFlags);
-    static QPixmap backgroundTexture();
+    static QPixmap backgroundTexture(bool skipCreation = false);
+    static QPixmap placeHolderTexture();
 
 #ifdef Q_WS_S60
     void handleDynamicLayoutVariantSwitch();
@@ -592,13 +593,11 @@ private:
     static QPixmap cachedFrame(SkinFrameElements frame, const QSize &size,
         SkinElementFlags flags = KDefaultSkinElementFlags);
 
-    static void refreshUI();
-
     // set S60 font for widget
     void setFont(QWidget *widget) const;
-    void setThemePalette(QWidget *widget) const;
+    static void setThemePalette(QWidget *widget);
     void setThemePalette(QPalette *palette) const;
-    void setThemePaletteHash(QPalette *palette) const;
+    static void setThemePaletteHash(QPalette *palette);
     static void storeThemePalette(QPalette *palette);
     static void deleteThemePalette();
     static bool equalToThemePalette(QColor color, QPalette::ColorRole role);
@@ -616,6 +615,9 @@ private:
 
     // Contains background texture.
     static QPixmap *m_background;
+    // Placeholder pixmap for the real background texture.
+    static QPixmap *m_placeHolderTexture;
+
     const static SkinElementFlags KDefaultSkinElementFlags;
     // defined theme palette
     static QPalette *m_themePalette;
diff --git a/src/gui/styles/qs60style_s60.cpp b/src/gui/styles/qs60style_s60.cpp
index 605872e..c5149a3 100644
--- a/src/gui/styles/qs60style_s60.cpp
+++ b/src/gui/styles/qs60style_s60.cpp
@@ -47,6 +47,7 @@
 #include "private/qt_s60_p.h"
 #include "private/qpixmap_s60_p.h"
 #include "private/qcore_symbian_p.h"
+#include "private/qvolatileimage_p.h"
 #include "qapplication.h"
 #include "qsettings.h"
 
@@ -65,7 +66,6 @@
 #include <aknnavi.h>
 #include <gulicon.h>
 #include <AknBitmapAnimation.h>
-
 #include <centralrepository.h>
 
 #if !defined(QT_NO_STYLE_S60) || defined(QT_PLUGIN)
@@ -637,9 +637,23 @@ QPixmap QS60StyleModeSpecifics::fromFbsBitmap(CFbsBitmap *icon, CFbsBitmap *mask
     if (error)
         return QPixmap();
 
-    QPixmap pixmap = QPixmap::fromSymbianCFbsBitmap(icon);
-    if (mask)
-        pixmap.setAlphaChannel(QPixmap::fromSymbianCFbsBitmap(mask));
+    QPixmap pixmap;
+    QScopedPointer<QPixmapData> pd(QPixmapData::create(0, 0, QPixmapData::PixmapType));
+    if (mask) {
+        // Try the efficient path with less copying and conversion.
+        QVolatileImage img(icon, mask);
+        pd->fromNativeType(&img, QPixmapData::VolatileImage);
+        if (!pd->isNull())
+            pixmap = QPixmap(pd.take());
+    }
+    if (pixmap.isNull()) {
+        // Potentially more expensive path.
+        pd->fromNativeType(icon, QPixmapData::FbsBitmap);
+        pixmap = QPixmap(pd.take());
+        if (mask) {
+            pixmap.setAlphaChannel(QPixmap::fromSymbianCFbsBitmap(mask));
+        }
+    }
 
     if ((flags & QS60StylePrivate::SF_PointEast) ||
         (flags & QS60StylePrivate::SF_PointSouth) ||
@@ -795,6 +809,8 @@ QPixmap QS60StyleModeSpecifics::createSkinnedGraphicsLX(
         rotatedBy90or270 ? TSize(size.height(), size.width()) : qt_QSize2TSize(size);
 
     MAknsSkinInstance* skinInstance = AknsUtils::SkinInstance();
+    static const TDisplayMode displayMode = S60->supportsPremultipliedAlpha ? Q_SYMBIAN_ECOLOR16MAP : EColor16MA;
+    static const TInt drawParam = S60->supportsPremultipliedAlpha ? KAknsDrawParamDefault : KAknsDrawParamRGBOnly;
 
     QPixmap result;
 
@@ -833,7 +849,7 @@ QPixmap QS60StyleModeSpecifics::createSkinnedGraphicsLX(
     //        QS60WindowSurface::unlockBitmapHeap();
             CFbsBitmap *background = new (ELeave) CFbsBitmap(); //offscreen
             CleanupStack::PushL(background);
-            User::LeaveIfError(background->Create(targetSize, EColor16MA));
+            User::LeaveIfError(background->Create(targetSize, displayMode));
 
             CFbsBitmapDevice *dev = CFbsBitmapDevice::NewL(background);
             CleanupStack::PushL(dev);
@@ -854,7 +870,7 @@ QPixmap QS60StyleModeSpecifics::createSkinnedGraphicsLX(
                 *gc,
                 TPoint(),
                 targetSize,
-                KAknsDrawParamDefault | KAknsDrawParamRGBOnly);
+                drawParam);
 
             if (drawn)
                 result = fromFbsBitmap(background, NULL, flags, targetSize);
@@ -1375,7 +1391,7 @@ QPixmap QS60StylePrivate::frame(SkinFrameElements frame, const QSize &size, Skin
     return result;
 }
 
-QPixmap QS60StylePrivate::backgroundTexture()
+QPixmap QS60StylePrivate::backgroundTexture(bool skipCreation)
 {
     bool createNewBackground = false;
     TRect applicationRect = (static_cast<CEikAppUi*>(S60->appUi())->ApplicationRect());
@@ -1390,14 +1406,40 @@ QPixmap QS60StylePrivate::backgroundTexture()
         }
     }
 
-    if (createNewBackground) {
+    if (createNewBackground && !skipCreation) {
         QPixmap background = part(QS60StyleEnums::SP_QsnBgScreen,
-                QSize(applicationRect.Width(), applicationRect.Height()), 0, SkinElementFlags());
+            QSize(applicationRect.Width(), applicationRect.Height()), 0, SkinElementFlags());
         m_background = new QPixmap(background);
+
+        // Notify all widgets that palette is updated with the actual background texture.
+        QPalette pal = QApplication::palette();
+        pal.setBrush(QPalette::Window, *m_background);
+        QApplication::setPalette(pal);
+        setThemePaletteHash(&pal);
+        storeThemePalette(&pal);
+        foreach (QWidget *widget, QApplication::allWidgets()){
+            QEvent e(QEvent::PaletteChange);
+            QApplication::sendEvent(widget, &e);
+            setThemePalette(widget);
+            widget->ensurePolished();
+        }
     }
+    if (!m_background)
+        return QPixmap();
     return *m_background;
 }
 
+// Generates 1*1 white pixmap as a placeholder for real texture.
+// The actual theme texture is drawn in qt_s60_fill_background().
+QPixmap QS60StylePrivate::placeHolderTexture()
+{
+    if (!m_placeHolderTexture) {
+        m_placeHolderTexture = new QPixmap(1,1);
+        m_placeHolderTexture->fill(Qt::white);
+    }
+    return *m_placeHolderTexture;
+}
+
 QSize QS60StylePrivate::screenSize()
 {
     return QSize(S60->screenWidthInPixels, S60->screenHeightInPixels);
@@ -1412,8 +1454,8 @@ QS60Style::QS60Style()
 void QS60StylePrivate::handleDynamicLayoutVariantSwitch()
 {
     clearCaches(QS60StylePrivate::CC_LayoutChange);
+    setBackgroundTexture(qApp);
     setActiveLayout();
-    refreshUI();
     foreach (QWidget *widget, QApplication::allWidgets())
         widget->ensurePolished();
 }
diff --git a/src/gui/styles/qs60style_simulated.cpp b/src/gui/styles/qs60style_simulated.cpp
index 77e0d0e..7223c6b 100644
--- a/src/gui/styles/qs60style_simulated.cpp
+++ b/src/gui/styles/qs60style_simulated.cpp
@@ -308,7 +308,7 @@ QPixmap QS60StylePrivate::frame(SkinFrameElements frame, const QSize &size,
     return result;
 }
 
-QPixmap QS60StylePrivate::backgroundTexture()
+QPixmap QS60StylePrivate::backgroundTexture(bool /*skipCreation*/)
 {
     if (!m_background) {
         const QSize size = QApplication::desktop()->screen()->size();
diff --git a/src/gui/text/qfontengine_mac.mm b/src/gui/text/qfontengine_mac.mm
index 1c21f91..42b9402 100644
--- a/src/gui/text/qfontengine_mac.mm
+++ b/src/gui/text/qfontengine_mac.mm
@@ -59,6 +59,8 @@
 
 QT_BEGIN_NAMESPACE
 
+static float SYNTHETIC_ITALIC_SKEW = tanf(14 * acosf(0) / 90);
+
 /*****************************************************************************
   QFontEngine debug facilities
  *****************************************************************************/
@@ -467,6 +469,9 @@ glyph_metrics_t QCoreTextFontEngine::boundingBox(glyph_t glyph)
     glyph_metrics_t ret;
     CGGlyph g = glyph;
     CGRect rect = CTFontGetBoundingRectsForGlyphs(ctfont, kCTFontHorizontalOrientation, &g, 0, 1);
+    if (synthesisFlags & QFontEngine::SynthesizedItalic) {
+        rect.size.width += rect.size.height * SYNTHETIC_ITALIC_SKEW;
+    }
     ret.width = QFixed::fromReal(rect.size.width);
     ret.height = QFixed::fromReal(rect.size.height);
     ret.x = QFixed::fromReal(rect.origin.x);
@@ -558,7 +563,7 @@ void QCoreTextFontEngine::draw(CGContextRef ctx, qreal x, qreal y, const QTextIt
     CGAffineTransformConcat(cgMatrix, oldTextMatrix);
 
     if (synthesisFlags & QFontEngine::SynthesizedItalic)
-        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, -tanf(14 * acosf(0) / 90), 1, 0, 0));
+        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, -SYNTHETIC_ITALIC_SKEW, 1, 0, 0));
 
     cgMatrix = CGAffineTransformConcat(cgMatrix, transform);
 
@@ -646,7 +651,7 @@ void QCoreTextFontEngine::addGlyphsToPath(glyph_t *glyphs, QFixedPoint *position
     cgMatrix = CGAffineTransformScale(cgMatrix, 1, -1);
 
     if (synthesisFlags & QFontEngine::SynthesizedItalic)
-        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, -tanf(14 * acosf(0) / 90), 1, 0, 0));
+        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, -SYNTHETIC_ITALIC_SKEW, 1, 0, 0));
 
 
     for (int i = 0; i < nGlyphs; ++i) {
@@ -681,7 +686,7 @@ QImage QCoreTextFontEngine::imageForGlyph(glyph_t glyph, int margin, bool aa)
     CGAffineTransformConcat(cgMatrix, oldTextMatrix);
 
     if (synthesisFlags & QFontEngine::SynthesizedItalic)
-        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, tanf(14 * acosf(0) / 90), 1, 0, 0));
+        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, SYNTHETIC_ITALIC_SKEW, 1, 0, 0));
 
     cgMatrix = CGAffineTransformConcat(cgMatrix, transform);
 
@@ -1625,7 +1630,7 @@ QImage QFontEngineMac::imageForGlyph(glyph_t glyph, int margin, bool colorful)
     CGAffineTransformConcat(cgMatrix, oldTextMatrix);
 
     if (synthesisFlags & QFontEngine::SynthesizedItalic)
-        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, tanf(14 * acosf(0) / 90), 1, 0, 0));
+        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, SYNTHETIC_ITALIC_SKEW, 1, 0, 0));
 
     cgMatrix = CGAffineTransformConcat(cgMatrix, transform);
 
@@ -1718,7 +1723,7 @@ void QFontEngineMac::draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt
     CGAffineTransformConcat(cgMatrix, oldTextMatrix);
 
     if (synthesisFlags & QFontEngine::SynthesizedItalic)
-        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, -tanf(14 * acosf(0) / 90), 1, 0, 0));
+        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, -SYNTHETIC_ITALIC_SKEW, 1, 0, 0));
 
     cgMatrix = CGAffineTransformConcat(cgMatrix, transform);
 
diff --git a/src/gui/text/qtextcontrol.cpp b/src/gui/text/qtextcontrol.cpp
index b25588d..6babca1 100644
--- a/src/gui/text/qtextcontrol.cpp
+++ b/src/gui/text/qtextcontrol.cpp
@@ -284,7 +284,7 @@ bool QTextControlPrivate::cursorMoveKeyEvent(QKeyEvent *e)
         if (cursor.position() != oldCursorPos)
             emit q->cursorPositionChanged();
         emit q->microFocusChanged();
-    } else if (ignoreNavigationEvents && isNavigationEvent) {
+    } else if (ignoreNavigationEvents && isNavigationEvent && oldSelection.anchor() == cursor.anchor()) {
         return false;
     }
 
@@ -1607,7 +1607,10 @@ void QTextControlPrivate::mouseMoveEvent(QEvent *e, Qt::MouseButton button, cons
     if (!(buttons & Qt::LeftButton))
         return;
 
-    if (!((interactionFlags & Qt::TextSelectableByMouse) || (interactionFlags & Qt::TextEditable)))
+    const bool selectable = interactionFlags & Qt::TextSelectableByMouse;
+    const bool editable = interactionFlags & Qt::TextEditable;
+
+    if (!selectable && !editable)
         return;
 
     if (!(mousePressed
@@ -1623,6 +1626,10 @@ void QTextControlPrivate::mouseMoveEvent(QEvent *e, Qt::MouseButton button, cons
             startDrag();
         return;
     }
+
+    if (!selectable)
+        return;
+
     const qreal mouseX = qreal(mousePos.x());
 
     int newCursorPos = q->hitTest(mousePos, Qt::FuzzyHit);
@@ -1638,7 +1645,7 @@ void QTextControlPrivate::mouseMoveEvent(QEvent *e, Qt::MouseButton button, cons
         extendBlockwiseSelection(newCursorPos);
     else if (selectedWordOnDoubleClick.hasSelection())
         extendWordwiseSelection(newCursorPos, mouseX);
-    else if (interactionFlags & Qt::TextSelectableByMouse)
+    else
         setCursorPosition(newCursorPos, QTextCursor::KeepAnchor);
 
     if (interactionFlags & Qt::TextEditable) {
@@ -1649,8 +1656,10 @@ void QTextControlPrivate::mouseMoveEvent(QEvent *e, Qt::MouseButton button, cons
             emit q->cursorPositionChanged();
         _q_updateCurrentCharFormatAndSelection();
 #ifndef QT_NO_IM
-        if (QInputContext *ic = inputContext()) {
-            ic->update();
+        if (contextWidget) {
+            if (QInputContext *ic = inputContext()) {
+                ic->update();
+            }
         }
 #endif //QT_NO_IM
     } else {
diff --git a/src/gui/text/qtextdocumentlayout.cpp b/src/gui/text/qtextdocumentlayout.cpp
index a1dcb63..5e59341 100644
--- a/src/gui/text/qtextdocumentlayout.cpp
+++ b/src/gui/text/qtextdocumentlayout.cpp
@@ -3148,7 +3148,7 @@ QRectF QTextDocumentLayoutPrivate::frameBoundingRectInternal(QTextFrame *frame)
 QRectF QTextDocumentLayout::blockBoundingRect(const QTextBlock &block) const
 {
     Q_D(const QTextDocumentLayout);
-    if (d->docPrivate->pageSize.isNull())
+    if (d->docPrivate->pageSize.isNull() || !block.isValid())
         return QRectF();
     d->ensureLayoutedByPosition(block.position() + block.length());
     QTextFrame *frame = d->document->frameAt(block.position());
diff --git a/src/gui/text/qtextengine_mac.cpp b/src/gui/text/qtextengine_mac.cpp
index ce42241..c34bdb3 100644
--- a/src/gui/text/qtextengine_mac.cpp
+++ b/src/gui/text/qtextengine_mac.cpp
@@ -604,8 +604,9 @@ void QTextEngine::shapeTextMac(int item) const
     bool stringToCMapFailed = false;
     if (!fe->stringToCMap(str, len, &g, &num_glyphs, flags, log_clusters, attributes())) {
         ensureSpace(num_glyphs);
-        stringToCMapFailed = fe->stringToCMap(str, len, &g, &num_glyphs, flags, log_clusters,
-                                              attributes());
+        g = availableGlyphs(&si);
+        stringToCMapFailed = !fe->stringToCMap(str, len, &g, &num_glyphs, flags, log_clusters,
+                                               attributes());
     }
 
     if (!stringToCMapFailed) {
diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp
index a996f59..905f81b 100644
--- a/src/gui/text/qtextlayout.cpp
+++ b/src/gui/text/qtextlayout.cpp
@@ -1682,6 +1682,7 @@ namespace {
         int glyphCount;
         int maxGlyphs;
         int currentPosition;
+        glyph_t previousGlyph;
 
         QFixed minw;
         QFixed softHyphenWidth;
@@ -1709,6 +1710,15 @@ namespace {
             return glyphs.glyphs[logClusters[currentPosition - 1]];
         }
 
+        inline void saveCurrentGlyph()
+        {
+            previousGlyph = 0;
+            if (currentPosition > 0 &&
+                logClusters[currentPosition - 1] < glyphs.numGlyphs) {
+                previousGlyph = currentGlyph(); // needed to calculate right bearing later
+            }
+        }
+
         inline void adjustRightBearing(glyph_t glyph)
         {
             qreal rb;
@@ -1723,6 +1733,12 @@ namespace {
             adjustRightBearing(currentGlyph());
         }
 
+        inline void adjustPreviousRightBearing()
+        {
+            if (previousGlyph > 0)
+                adjustRightBearing(previousGlyph);
+        }
+
         inline void resetRightBearing()
         {
             rightBearing = QFixed(1); // Any positive number is defined as invalid since only
@@ -1798,22 +1814,7 @@ void QTextLine::layout_helper(int maxGlyphs)
     lbh.manualWrap = (wrapMode == QTextOption::ManualWrap || wrapMode == QTextOption::NoWrap);
 
     int item = -1;
-    int newItem = -1;
-    int left = 0;
-    int right = eng->layoutData->items.size()-1;
-    while(left <= right) {
-        int middle = ((right-left)/2)+left;
-        if (line.from > eng->layoutData->items[middle].position)
-            left = middle+1;
-        else if(line.from < eng->layoutData->items[middle].position)
-            right = middle-1;
-        else {
-            newItem = middle;
-            break;
-        }
-    }
-    if (newItem == -1)
-        newItem = right;
+    int newItem = eng->findItem(line.from);
 
     LB_DEBUG("from: %d: item=%d, total %d, width available %f", line.from, newItem, eng->layoutData->items.size(), line.width.toReal());
 
@@ -1825,6 +1826,7 @@ void QTextLine::layout_helper(int maxGlyphs)
     lbh.currentPosition = line.from;
     int end = 0;
     lbh.logClusters = eng->layoutData->logClustersPtr;
+    lbh.previousGlyph = 0;
 
     while (newItem < eng->layoutData->items.size()) {
         lbh.resetRightBearing();
@@ -1885,6 +1887,7 @@ void QTextLine::layout_helper(int maxGlyphs)
                                current, lbh.logClusters, lbh.glyphs);
             } else {
                 lbh.tmpData.length++;
+                lbh.adjustPreviousRightBearing();
             }
             line += lbh.tmpData;
             goto found;
@@ -1915,9 +1918,7 @@ void QTextLine::layout_helper(int maxGlyphs)
         } else {
             lbh.whiteSpaceOrObject = false;
             bool sb_or_ws = false;
-            glyph_t previousGlyph = 0;
-            if (lbh.currentPosition > 0 && lbh.logClusters[lbh.currentPosition - 1] <lbh.glyphs.numGlyphs)
-                previousGlyph = lbh.currentGlyph(); // needed to calculate right bearing later
+            lbh.saveCurrentGlyph();
             do {
                 addNextCluster(lbh.currentPosition, end, lbh.tmpData, lbh.glyphCount,
                                current, lbh.logClusters, lbh.glyphs);
@@ -1942,7 +1943,7 @@ void QTextLine::layout_helper(int maxGlyphs)
                 //  b) if we are so short of available width that the
                 //     soft hyphen is the first breakable position, then
                 //     we don't want to show it. However we initially
-                //     have to take the width for it into accoun so that
+                //     have to take the width for it into account so that
                 //     the text document layout sees the overflow and
                 //     switch to break-anywhere mode, in which we
                 //     want the soft-hyphen to slip into the next line
@@ -1970,8 +1971,9 @@ void QTextLine::layout_helper(int maxGlyphs)
                     // we are too wide, fix right bearing
                     if (rightBearing <= 0)
                         lbh.rightBearing = rightBearing; // take from cache
-                    else if (previousGlyph > 0)
-                        lbh.adjustRightBearing(previousGlyph);
+                    else
+                        lbh.adjustPreviousRightBearing();
+
                     if (!breakany) {
                         line.textWidth += lbh.softHyphenWidth;
                     }
@@ -1979,6 +1981,7 @@ void QTextLine::layout_helper(int maxGlyphs)
                     goto found;
                 }
             }
+            lbh.saveCurrentGlyph();
         }
         if (lbh.currentPosition == end)
             newItem = item + 1;
diff --git a/src/gui/text/qtextobject.cpp b/src/gui/text/qtextobject.cpp
index e323fd0..94f2fc7 100644
--- a/src/gui/text/qtextobject.cpp
+++ b/src/gui/text/qtextobject.cpp
@@ -1504,7 +1504,7 @@ QTextBlock QTextBlock::next() const
 */
 QTextBlock QTextBlock::previous() const
 {
-    if (!isValid())
+    if (!p)
         return QTextBlock();
 
     return QTextBlock(p, p->blockMap().previous(n));
diff --git a/src/gui/widgets/qlinecontrol.cpp b/src/gui/widgets/qlinecontrol.cpp
index d108ad9..5a281ad 100644
--- a/src/gui/widgets/qlinecontrol.cpp
+++ b/src/gui/widgets/qlinecontrol.cpp
@@ -414,13 +414,17 @@ void QLineControl::processInputMethodEvent(QInputMethodEvent *event)
     if (isGettingInput) {
         // If any text is being input, remove selected text.
         priorState = m_undoState;
+        if (echoMode() == QLineEdit::PasswordEchoOnEdit && !passwordEchoEditing()) {
+            updatePasswordEchoEditing(true);
+            m_selstart = 0;
+            m_selend = m_text.length();
+        }
         removeSelectedText();
     }
 
-
     int c = m_cursor; // cursor position after insertion of commit string
     if (event->replacementStart() <= 0)
-        c += event->commitString().length() + qMin(-event->replacementStart(), event->replacementLength());
+        c += event->commitString().length() - qMin(-event->replacementStart(), event->replacementLength());
 
     m_cursor += event->replacementStart();