Merge branch '4.6' of git@scm.dev.nokia.troll.no:qt/qt into 4.6-s60

Conflicts:
	src/s60installs/bwins/QtGuiu.def

74 files changed, 648 insertions, 271 deletions

diff --git a/src/corelib/animation/qvariantanimation.cpp b/src/corelib/animation/qvariantanimation.cpp
index d529f67..bc0d35e 100644
--- a/src/corelib/animation/qvariantanimation.cpp
+++ b/src/corelib/animation/qvariantanimation.cpp
@@ -373,6 +373,13 @@ QVariantAnimation::~QVariantAnimation()
     Another example is QEasingCurve::InOutElastic, which provides an
     elastic effect on the values of the interpolated variant.
 
+    QVariantAnimation will use the QEasingCurve::valueForProgress() to
+    transform the "normalized progress" (currentTime / totalDuration)
+    of the animation into the effective progress actually
+    used by the animation. It is this effective progress that will be
+    the progress when interpolated() is called. Also, the steps in the
+    keyValues are referring to this effective progress.
+
     The easing curve is used with the interpolator, the interpolated()
     virtual function, the animation's duration, and iterationCount, to
     control how the current value changes as the animation progresses.
diff --git a/src/corelib/codecs/qtextcodec.h b/src/corelib/codecs/qtextcodec.h
index f831700..6170272 100644
--- a/src/corelib/codecs/qtextcodec.h
+++ b/src/corelib/codecs/qtextcodec.h
@@ -161,7 +161,7 @@ public:
     QByteArray fromUnicode(const QString& str);
     QByteArray fromUnicode(const QChar *uc, int len);
 #ifdef QT3_SUPPORT
-    QByteArray fromUnicode(const QString& uc, int& lenInOut);
+    QT3_SUPPORT QByteArray fromUnicode(const QString& uc, int& lenInOut);
 #endif
     bool hasFailure() const;
 private:
diff --git a/src/corelib/io/qfsfileengine.cpp b/src/corelib/io/qfsfileengine.cpp
index 37b0ea1..e4c4e3f 100644
--- a/src/corelib/io/qfsfileengine.cpp
+++ b/src/corelib/io/qfsfileengine.cpp
@@ -144,7 +144,7 @@ QString QFSFileEnginePrivate::canonicalized(const QString &path)
         return path;
 #endif
     // Mac OS X 10.5.x doesn't support the realpath(X,0) extenstion we use here.
-#if (defined(Q_OS_UNIX) && !defined(Q_OS_MAC)) || defined(Q_OS_SYMBIAN)
+#if defined(Q_OS_LINIX) || defined(Q_OS_SYMBIAN)
     char *ret = realpath(path.toLocal8Bit().constData(), (char*)0);
     if (ret) {
         QString canonicalPath = QDir::cleanPath(QString::fromLocal8Bit(ret));
diff --git a/src/corelib/io/qprocess.cpp b/src/corelib/io/qprocess.cpp
index 37161bc..c78af3c 100644
--- a/src/corelib/io/qprocess.cpp
+++ b/src/corelib/io/qprocess.cpp
@@ -275,7 +275,7 @@ QProcessEnvironment &QProcessEnvironment::operator=(const QProcessEnvironment &o
 */
 bool QProcessEnvironment::operator==(const QProcessEnvironment &other) const
 {
-    return d->hash == other.d->hash;
+    return d == other.d || (d && other.d && d->hash == other.d->hash);
 }
 
 /*!
@@ -334,6 +334,7 @@ bool QProcessEnvironment::contains(const QString &name) const
 */
 void QProcessEnvironment::insert(const QString &name, const QString &value)
 {
+    // d detaches from null
     d->hash.insert(prepareName(name), prepareValue(value));
 }
 
diff --git a/src/corelib/kernel/qcore_unix.cpp b/src/corelib/kernel/qcore_unix.cpp
index 5885591..d0dc7be 100644
--- a/src/corelib/kernel/qcore_unix.cpp
+++ b/src/corelib/kernel/qcore_unix.cpp
@@ -129,7 +129,7 @@ static inline bool time_update(struct timeval *tv, const struct timeval &start,
     // clock source is monotonic, so we can recalculate how much timeout is left
     struct timeval now = qt_gettime();
     *tv = timeout + start - now;
-    return true;
+    return tv->tv_sec >= 0;
 }
 
 int qt_safe_select(int nfds, fd_set *fdread, fd_set *fdwrite, fd_set *fdexcept,
@@ -154,7 +154,8 @@ int qt_safe_select(int nfds, fd_set *fdread, fd_set *fdwrite, fd_set *fdexcept,
 
         // recalculate the timeout
         if (!time_update(&timeout, start, *orig_timeout)) {
-            // clock reset, fake timeout error
+            // timeout during update
+            // or clock reset, fake timeout error
             return 0;
         }
     }
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 30cd011..85915c2 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -145,7 +145,7 @@ QObjectPrivate::QObjectPrivate(int version)
     receiveChildEvents = true;
     postedEvents = 0;
     extraData = 0;
-    connectedSignals = 0;
+    connectedSignals[0] = connectedSignals[1] = 0;
     inEventHandler = false;
     inThreadChangeEvent = false;
     deleteWatch = 0;
@@ -2924,9 +2924,9 @@ bool QMetaObjectPrivate::connect(const QObject *sender, int signal_index,
 
     QObjectPrivate *const sender_d = QObjectPrivate::get(s);
     if (signal_index < 0) {
-        sender_d->connectedSignals = ~ulong(0);
+        sender_d->connectedSignals[0] = sender_d->connectedSignals[1] = ~0;
     } else if (signal_index < (int)sizeof(sender_d->connectedSignals) * 8) {
-        sender_d->connectedSignals |= ulong(1) << signal_index;
+        sender_d->connectedSignals[signal_index >> 5] |= (1 << (signal_index & 0x1f));
     }
 
     return true;
diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h
index f899c78..d1841be 100644
--- a/src/corelib/kernel/qobject_p.h
+++ b/src/corelib/kernel/qobject_p.h
@@ -172,7 +172,7 @@ public:
     }
 
     int signalIndex(const char *signalName) const;
-    inline bool isSignalConnected(int signalIdx) const;
+    inline bool isSignalConnected(uint signalIdx) const;
 
 public:
     QString objectName;
@@ -183,7 +183,7 @@ public:
 
     Connection *senders;     // linked list of connections connected to this object
     Sender *currentSender;   // object currently activating the object
-    mutable ulong connectedSignals;
+    mutable quint32 connectedSignals[2];
 
 #ifdef QT3_SUPPORT
     QList<QObject *> pendingChildInsertedEvents;
@@ -205,6 +205,7 @@ public:
     int *deleteWatch;
 };
 
+
 /*! \internal
 
   Returns true if the signal with index \a signal_index from object \a sender is connected.
@@ -213,12 +214,12 @@ public:
 
   \a signal_index must be the index returned by QObjectPrivate::signalIndex;
 */
-inline bool QObjectPrivate::isSignalConnected(int signal_index) const
+inline bool QObjectPrivate::isSignalConnected(uint signal_index) const
 {
-    return signal_index >= (int)sizeof(connectedSignals) * 8
+    return signal_index >= sizeof(connectedSignals) * 8
         || qt_signal_spy_callback_set.signal_begin_callback
         || qt_signal_spy_callback_set.signal_end_callback
-        || (connectedSignals & (ulong(1) << signal_index));
+        || (connectedSignals[signal_index >> 5] & (1 << (signal_index & 0x1f)));
 }
 
 
diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h
index 3c10788..74ff17f 100644
--- a/src/corelib/kernel/qvariant.h
+++ b/src/corelib/kernel/qvariant.h
@@ -458,7 +458,7 @@ inline void qVariantSetValue(QVariant &v, const T &t)
     //if possible we reuse the current QVariant private
     const uint type = qMetaTypeId<T>(reinterpret_cast<T *>(0));
     QVariant::Private &d = v.data_ptr();
-    if (v.isDetached() && (type <= uint(QVariant::Char) || type == d.type)) {
+    if (v.isDetached() && (type == d.type || (type <= uint(QVariant::Char) && d.type <= uint(QVariant::Char)))) {
         d.type = type;
         d.is_null = false;
         T *old = reinterpret_cast<T*>(d.is_shared ? d.data.shared->ptr : &d.data.ptr);
diff --git a/src/corelib/tools/qcache.h b/src/corelib/tools/qcache.h
index 46e20b1..66f9f73 100644
--- a/src/corelib/tools/qcache.h
+++ b/src/corelib/tools/qcache.h
@@ -70,8 +70,9 @@ class QCache
         if (l == &n) l = n.p;
         if (f == &n) f = n.n;
         total -= n.c;
-        delete n.t;
+        T *obj = n.t;
         hash.remove(*n.keyPtr);
+        delete obj;
     }
     inline T *relink(const Key &key) {
         typename QHash<Key, Node>::iterator i = hash.find(key);
diff --git a/src/corelib/tools/qregexp.h b/src/corelib/tools/qregexp.h
index 2bad40e..8a46b98 100644
--- a/src/corelib/tools/qregexp.h
+++ b/src/corelib/tools/qregexp.h
@@ -119,7 +119,9 @@ public:
 #endif
     int matchedLength() const;
 #ifndef QT_NO_REGEXP_CAPTURE
+#ifdef QT_DEPRECATED
     QT_DEPRECATED int numCaptures() const;
+#endif
     int captureCount() const;
     QStringList capturedTexts() const;
     QStringList capturedTexts();
diff --git a/src/dbus/qdbusargument_p.h b/src/dbus/qdbusargument_p.h
index 47c5e62..17302b4 100644
--- a/src/dbus/qdbusargument_p.h
+++ b/src/dbus/qdbusargument_p.h
@@ -54,7 +54,7 @@
 //
 
 #include <qdbusargument.h>
-#include <qdbus_symbols_p.h>
+#include "qdbus_symbols_p.h"
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/dbus/qdbusconnection_p.h b/src/dbus/qdbusconnection_p.h
index b65e101..d6f7598 100644
--- a/src/dbus/qdbusconnection_p.h
+++ b/src/dbus/qdbusconnection_p.h
@@ -67,7 +67,7 @@
 #include <QtCore/qvarlengtharray.h>
 #include <QtCore/qvector.h>
 
-#include <qdbus_symbols_p.h>
+#include "qdbus_symbols_p.h"
 
 #include <qdbusmessage.h>
 
diff --git a/src/dbus/qdbusconnectioninterface.cpp b/src/dbus/qdbusconnectioninterface.cpp
index 0f9a67f..ec61859 100644
--- a/src/dbus/qdbusconnectioninterface.cpp
+++ b/src/dbus/qdbusconnectioninterface.cpp
@@ -49,7 +49,7 @@
 #include <QtCore/QVariant>
 #include <QtCore/QDebug>
 
-#include <qdbus_symbols_p.h>          // for the DBUS_* constants
+#include "qdbus_symbols_p.h"          // for the DBUS_* constants
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/dbus/qdbuserror.cpp b/src/dbus/qdbuserror.cpp
index 5c2fa2b..a48b878 100644
--- a/src/dbus/qdbuserror.cpp
+++ b/src/dbus/qdbuserror.cpp
@@ -44,7 +44,7 @@
 #include <qdebug.h>
 #include <qvarlengtharray.h>
 
-#include <qdbus_symbols_p.h>
+#include "qdbus_symbols_p.h"
 #include "qdbusmessage.h"
 #include "qdbusmessage_p.h"
 
diff --git a/src/dbus/qdbusintegrator_p.h b/src/dbus/qdbusintegrator_p.h
index 5b18aca..85c6cb2 100644
--- a/src/dbus/qdbusintegrator_p.h
+++ b/src/dbus/qdbusintegrator_p.h
@@ -54,7 +54,7 @@
 #ifndef QDBUSINTEGRATOR_P_H
 #define QDBUSINTEGRATOR_P_H
 
-#include <qdbus_symbols_p.h>
+#include "qdbus_symbols_p.h"
 
 #include "qcoreevent.h"
 #include "qeventloop.h"
diff --git a/src/dbus/qdbusinterface.cpp b/src/dbus/qdbusinterface.cpp
index d0a693f..c05e6a9 100644
--- a/src/dbus/qdbusinterface.cpp
+++ b/src/dbus/qdbusinterface.cpp
@@ -41,7 +41,7 @@
 
 #include "qdbusinterface.h"
 
-#include <qdbus_symbols_p.h>
+#include "qdbus_symbols_p.h"
 #include <QtCore/qpointer.h>
 #include <QtCore/qstringlist.h>
 
diff --git a/src/dbus/qdbusinterface_p.h b/src/dbus/qdbusinterface_p.h
index 3d11af1..a601608 100644
--- a/src/dbus/qdbusinterface_p.h
+++ b/src/dbus/qdbusinterface_p.h
@@ -54,8 +54,8 @@
 #ifndef QDBUSINTERFACEPRIVATE_H
 #define QDBUSINTERFACEPRIVATE_H
 
-#include <qdbusabstractinterface_p.h>
-#include <qdbusmetaobject_p.h>
+#include "qdbusabstractinterface_p.h"
+#include "qdbusmetaobject_p.h"
 #include <qdbusinterface.h>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/dbus/qdbusinternalfilters.cpp b/src/dbus/qdbusinternalfilters.cpp
index acd04d3..37110c5 100644
--- a/src/dbus/qdbusinternalfilters.cpp
+++ b/src/dbus/qdbusinternalfilters.cpp
@@ -41,7 +41,7 @@
 
 #include "qdbusconnection_p.h"
 
-#include <qdbus_symbols_p.h>
+#include "qdbus_symbols_p.h"
 #include <QtCore/qcoreapplication.h>
 #include <QtCore/qmetaobject.h>
 #include <QtCore/qstringlist.h>
diff --git a/src/dbus/qdbusmessage.cpp b/src/dbus/qdbusmessage.cpp
index 4f1950b..a37ba1f 100644
--- a/src/dbus/qdbusmessage.cpp
+++ b/src/dbus/qdbusmessage.cpp
@@ -44,7 +44,7 @@
 #include <qdebug.h>
 #include <qstringlist.h>
 
-#include <qdbus_symbols_p.h>
+#include "qdbus_symbols_p.h"
 
 #include "qdbusargument_p.h"
 #include "qdbuserror.h"
diff --git a/src/dbus/qdbusmetatype.cpp b/src/dbus/qdbusmetatype.cpp
index 237aea3..afa3bbf 100644
--- a/src/dbus/qdbusmetatype.cpp
+++ b/src/dbus/qdbusmetatype.cpp
@@ -42,7 +42,7 @@
 #include "qdbusmetatype.h"
 
 #include <string.h>
-#include <qdbus_symbols_p.h>
+#include "qdbus_symbols_p.h"
 
 #include <qbytearray.h>
 #include <qglobal.h>
diff --git a/src/dbus/qdbusutil.cpp b/src/dbus/qdbusutil.cpp
index bf5a739..01b1dbd 100644
--- a/src/dbus/qdbusutil.cpp
+++ b/src/dbus/qdbusutil.cpp
@@ -41,7 +41,7 @@
 
 #include "qdbusutil_p.h"
 
-#include <qdbus_symbols_p.h>
+#include "qdbus_symbols_p.h"
 
 #include <QtCore/qstringlist.h>
 
diff --git a/src/dbus/qdbusxmlparser_p.h b/src/dbus/qdbusxmlparser_p.h
index 3dbae1b..1a0523b 100644
--- a/src/dbus/qdbusxmlparser_p.h
+++ b/src/dbus/qdbusxmlparser_p.h
@@ -56,7 +56,7 @@
 #include <QtCore/qmap.h>
 #include <QtXml/qdom.h>
 #include <qdbusmacros.h>
-#include <qdbusintrospection_p.h>
+#include "qdbusintrospection_p.h"
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/gui/effects/qgraphicseffect.cpp b/src/gui/effects/qgraphicseffect.cpp
index 239e29c..d6cabaa 100644
--- a/src/gui/effects/qgraphicseffect.cpp
+++ b/src/gui/effects/qgraphicseffect.cpp
@@ -160,6 +160,10 @@ QRectF QGraphicsEffectSource::boundingRect(Qt::CoordinateSystem system) const
 /*!
     Returns the bounding rectangle of the source mapped to the given \a system.
 
+    Calling this function with Qt::DeviceCoordinates outside of
+    QGraphicsEffect::draw() will give undefined results, as there is no device
+    context available.
+
     \sa draw()
 */
 QRectF QGraphicsEffect::sourceBoundingRect(Qt::CoordinateSystem system) const
@@ -348,6 +352,10 @@ QPixmap QGraphicsEffectSource::pixmap(Qt::CoordinateSystem system, QPoint *offse
     The returned pixmap is clipped to the current painter's device rectangle when
     \a system is Qt::DeviceCoordinates.
 
+    Calling this function with Qt::DeviceCoordinates outside of
+    QGraphicsEffect::draw() will give undefined results, as there is no device
+    context available.
+
     \sa draw(), boundingRect()
 */
 QPixmap QGraphicsEffect::sourcePixmap(Qt::CoordinateSystem system, QPoint *offset, QGraphicsEffect::PixmapPadMode mode) const
@@ -398,8 +406,8 @@ QGraphicsEffect::~QGraphicsEffect()
 
 /*!
     Returns the effective bounding rectangle for this effect, i.e., the
-    bounding rectangle of the source, adjusted by any margins applied by
-    the effect itself.
+    bounding rectangle of the source in device coordinates, adjusted by
+    any margins applied by the effect itself.
 
     \sa boundingRectFor(), updateBoundingRect()
 */
@@ -413,7 +421,7 @@ QRectF QGraphicsEffect::boundingRect() const
 
 /*!
     Returns the effective bounding rectangle for this effect, given the
-    provided \a rect in the source's coordinate space. When writing
+    provided \a rect in the device coordinates. When writing
     you own custom effect, you must call updateBoundingRect() whenever any
     parameters are changed that may cause this this function to return a
     different value.
diff --git a/src/gui/embedded/qscreen_qws.h b/src/gui/embedded/qscreen_qws.h
index b3246f9..7ab49fb 100644
--- a/src/gui/embedded/qscreen_qws.h
+++ b/src/gui/embedded/qscreen_qws.h
@@ -243,7 +243,9 @@ public:
     int totalSize() const { return mapsize; }
 
     QRgb * clut() { return screenclut; }
+#ifdef QT_DEPRECATED
     QT_DEPRECATED int numCols() { return screencols; }
+#endif
     int colorCount() { return screencols; }
 
     virtual QSize mapToDevice(const QSize &) const;
diff --git a/src/gui/graphicsview/qgraphicsanchorlayout.cpp b/src/gui/graphicsview/qgraphicsanchorlayout.cpp
index 6718a28..f504c54 100644
--- a/src/gui/graphicsview/qgraphicsanchorlayout.cpp
+++ b/src/gui/graphicsview/qgraphicsanchorlayout.cpp
@@ -321,14 +321,14 @@ void QGraphicsAnchorLayout::addCornerAnchors(QGraphicsLayoutItem *firstItem,
     // Horizontal anchor
     Qt::AnchorPoint firstEdge = (firstCorner & 1 ? Qt::AnchorRight: Qt::AnchorLeft);
     Qt::AnchorPoint secondEdge = (secondCorner & 1 ? Qt::AnchorRight: Qt::AnchorLeft);
-    d->addAnchor(firstItem, firstEdge, secondItem, secondEdge);
+    if (d->addAnchor(firstItem, firstEdge, secondItem, secondEdge)) {
+        // Vertical anchor
+        firstEdge = (firstCorner & 2 ? Qt::AnchorBottom: Qt::AnchorTop);
+        secondEdge = (secondCorner & 2 ? Qt::AnchorBottom: Qt::AnchorTop);
+        d->addAnchor(firstItem, firstEdge, secondItem, secondEdge);
 
-    // Vertical anchor
-    firstEdge = (firstCorner & 2 ? Qt::AnchorBottom: Qt::AnchorTop);
-    secondEdge = (secondCorner & 2 ? Qt::AnchorBottom: Qt::AnchorTop);
-    d->addAnchor(firstItem, firstEdge, secondItem, secondEdge);
-
-    invalidate();
+        invalidate();
+    }
 }
 
 /*!
@@ -351,11 +351,14 @@ void QGraphicsAnchorLayout::addAnchors(QGraphicsLayoutItem *firstItem,
                                        QGraphicsLayoutItem *secondItem,
                                        Qt::Orientations orientations)
 {
+    bool ok = true;
     if (orientations & Qt::Horizontal) {
-        addAnchor(secondItem, Qt::AnchorLeft, firstItem, Qt::AnchorLeft);
-        addAnchor(firstItem, Qt::AnchorRight, secondItem, Qt::AnchorRight);
+        // Currently, if the first is ok, then the rest of the calls should be ok
+        ok = addAnchor(secondItem, Qt::AnchorLeft, firstItem, Qt::AnchorLeft) != 0;
+        if (ok)
+            addAnchor(firstItem, Qt::AnchorRight, secondItem, Qt::AnchorRight);
     }
-    if (orientations & Qt::Vertical) {
+    if (orientations & Qt::Vertical && ok) {
         addAnchor(secondItem, Qt::AnchorTop, firstItem, Qt::AnchorTop);
         addAnchor(firstItem, Qt::AnchorBottom, secondItem, Qt::AnchorBottom);
     }
diff --git a/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp b/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
index 03ed63d..1dc6873 100644
--- a/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
+++ b/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
@@ -1666,6 +1666,13 @@ QGraphicsAnchor *QGraphicsAnchorLayoutPrivate::addAnchor(QGraphicsLayoutItem *fi
         return 0;
     }
 
+    const QGraphicsLayoutItem *parentWidget = q->parentLayoutItem();
+    if (firstItem == parentWidget || secondItem == parentWidget) {
+        qWarning("QGraphicsAnchorLayout::addAnchor(): "
+                 "You cannot add the parent of the layout to the layout.");
+        return 0;
+    }
+
     // In QGraphicsAnchorLayout, items are represented in its internal
     // graph as four anchors that connect:
     //  - Left -> HCenter
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 90cc132..d955f16 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -2584,6 +2584,35 @@ void QGraphicsItem::setGraphicsEffect(QGraphicsEffect *effect)
 /*!
     \internal
     \since 4.6
+    Returns the effective bounding rect of the given item space rect.
+    If the item has no effect, the rect is returned unmodified.
+    If the item has an effect, the effective rect can be extend beyond the
+    item's bounding rect, depending on the effect.
+
+    \sa boundingRect()
+*/
+QRectF QGraphicsItemPrivate::effectiveBoundingRect(const QRectF &rect) const
+{
+#ifndef QT_NO_GRAPHICSEFFECT
+    Q_Q(const QGraphicsItem);
+    QGraphicsEffect *effect = graphicsEffect;
+    if (scene && effect && effect->isEnabled()) {
+        QRectF sceneRect = q->mapRectToScene(rect);
+        QRectF sceneEffectRect;
+        foreach (QGraphicsView *view, scene->views()) {
+            QRectF deviceRect = view->d_func()->mapRectFromScene(sceneRect);
+            QRect deviceEffectRect = effect->boundingRectFor(deviceRect).toAlignedRect();
+            sceneEffectRect |= view->d_func()->mapRectToScene(deviceEffectRect);
+        }
+        return q->mapRectFromScene(sceneEffectRect);
+    }
+#endif //QT_NO_GRAPHICSEFFECT
+    return rect;
+}
+
+/*!
+    \internal
+    \since 4.6
     Returns the effective bounding rect of the item.
     If the item has no effect, this is the same as the item's bounding rect.
     If the item has an effect, the effective rect can be larger than the item's
@@ -2594,16 +2623,19 @@ void QGraphicsItem::setGraphicsEffect(QGraphicsEffect *effect)
 QRectF QGraphicsItemPrivate::effectiveBoundingRect() const
 {
 #ifndef QT_NO_GRAPHICSEFFECT
-    QGraphicsEffect *effect = graphicsEffect;
-    QRectF brect = effect && effect->isEnabled() ? effect->boundingRect() : q_ptr->boundingRect();
+    Q_Q(const QGraphicsItem);
+    QRectF brect = effectiveBoundingRect(q_ptr->boundingRect());
     if (ancestorFlags & QGraphicsItemPrivate::AncestorClipsChildren)
         return brect;
 
     const QGraphicsItem *effectParent = parent;
     while (effectParent) {
-        effect = effectParent->d_ptr->graphicsEffect;
-        if (effect && effect->isEnabled())
-            brect = effect->boundingRectFor(brect);
+        QGraphicsEffect *effect = effectParent->d_ptr->graphicsEffect;
+        if (scene && effect && effect->isEnabled()) {
+            const QRectF brectInParentSpace = q->mapRectToItem(effectParent, brect);
+            const QRectF effectRectInParentSpace = effectParent->d_ptr->effectiveBoundingRect(brectInParentSpace);
+            brect = effectParent->mapRectToItem(q, effectRectInParentSpace);
+        }
         if (effectParent->d_ptr->ancestorFlags & QGraphicsItemPrivate::AncestorClipsChildren)
             return brect;
         effectParent = effectParent->d_ptr->parent;
@@ -10505,6 +10537,20 @@ void QGraphicsItemGroup::addToGroup(QGraphicsItem *item)
     if (!item->pos().isNull())
         newItemTransform *= QTransform::fromTranslate(-item->x(), -item->y());
 
+    // removing additional transformations properties applied with itemTransform()
+    QPointF origin = item->transformOriginPoint();
+    QMatrix4x4 m;
+    QList<QGraphicsTransform*> transformList = item->transformations();
+    for (int i = 0; i < transformList.size(); ++i)
+        transformList.at(i)->applyTo(&m);
+    newItemTransform *= m.toTransform().inverted();
+    newItemTransform.translate(origin.x(), origin.y());
+    newItemTransform.rotate(-item->rotation());
+    newItemTransform.scale(1/item->scale(), 1/item->scale());
+    newItemTransform.translate(-origin.x(), -origin.y());
+
+    // ### Expensive, we could maybe use dirtySceneTransform bit for optimization
+
     item->setTransform(newItemTransform);
     item->d_func()->setIsMemberOfGroup(true);
     prepareGeometryChange();
@@ -10529,11 +10575,39 @@ void QGraphicsItemGroup::removeFromGroup(QGraphicsItem *item)
     }
 
     QGraphicsItem *newParent = d_ptr->parent;
+
+    // COMBINE
+    bool ok;
+    QTransform itemTransform;
+    if (newParent)
+        itemTransform = item->itemTransform(newParent, &ok);
+    else
+        itemTransform = item->sceneTransform();
+
     QPointF oldPos = item->mapToItem(newParent, 0, 0);
     item->setParentItem(newParent);
-    // ### This function should remap the item's matrix to keep the item's
-    // transformation unchanged relative to the scene.
     item->setPos(oldPos);
+
+    // removing position from translation component of the new transform
+    if (!item->pos().isNull())
+        itemTransform *= QTransform::fromTranslate(-item->x(), -item->y());
+
+    // removing additional transformations properties applied
+    // with itemTransform() or sceneTransform()
+    QPointF origin = item->transformOriginPoint();
+    QMatrix4x4 m;
+    QList<QGraphicsTransform*> transformList = item->transformations();
+    for (int i = 0; i < transformList.size(); ++i)
+        transformList.at(i)->applyTo(&m);
+    itemTransform *= m.toTransform().inverted();
+    itemTransform.translate(origin.x(), origin.y());
+    itemTransform.rotate(-item->rotation());
+    itemTransform.scale(1 / item->scale(), 1 / item->scale());
+    itemTransform.translate(-origin.x(), -origin.y());
+
+    // ### Expensive, we could maybe use dirtySceneTransform bit for optimization
+
+    item->setTransform(itemTransform);
     item->d_func()->setIsMemberOfGroup(item->group() != 0);
 
     // ### Quite expensive. But removeFromGroup() isn't called very often.
@@ -10649,17 +10723,26 @@ QPixmap QGraphicsItemEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QP
     QGraphicsScenePrivate *scened = item->d_ptr->scene->d_func();
 
     const QRectF sourceRect = boundingRect(system);
-    QRect effectRect;
+    QRectF effectRectF;
 
     if (mode == QGraphicsEffect::PadToEffectiveBoundingRect) {
-        effectRect = item->graphicsEffect()->boundingRectFor(sourceRect).toAlignedRect();
+        if (info) {
+            effectRectF = item->graphicsEffect()->boundingRectFor(boundingRect(Qt::DeviceCoordinates));
+            if (info && system == Qt::LogicalCoordinates)
+                effectRectF = info->painter->worldTransform().inverted().mapRect(effectRectF);
+        } else {
+            // no choice but to send a logical coordinate bounding rect to boundingRectFor
+            effectRectF = item->graphicsEffect()->boundingRectFor(sourceRect);
+        }
     } else if (mode == QGraphicsEffect::PadToTransparentBorder) {
         // adjust by 1.5 to account for cosmetic pens
-        effectRect = sourceRect.adjusted(-1.5, -1.5, 1.5, 1.5).toAlignedRect();
+        effectRectF = sourceRect.adjusted(-1.5, -1.5, 1.5, 1.5);
     } else {
-        effectRect = sourceRect.toAlignedRect();
+        effectRectF = sourceRect;
     }
 
+    QRect effectRect = effectRectF.toAlignedRect();
+
     if (offset)
         *offset = effectRect.topLeft();
 
diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h
index 8f9fe54..2d8de65 100644
--- a/src/gui/graphicsview/qgraphicsitem_p.h
+++ b/src/gui/graphicsview/qgraphicsitem_p.h
@@ -236,6 +236,8 @@ public:
     QRectF effectiveBoundingRect() const;
     QRectF sceneEffectiveBoundingRect() const;
 
+    QRectF effectiveBoundingRect(const QRectF &rect) const;
+
     virtual void resolveFont(uint inheritedMask)
     {
         for (int i = 0; i < children.size(); ++i)
diff --git a/src/gui/graphicsview/qgraphicslayout.cpp b/src/gui/graphicsview/qgraphicslayout.cpp
index 2e9a30c..1e426c8 100644
--- a/src/gui/graphicsview/qgraphicslayout.cpp
+++ b/src/gui/graphicsview/qgraphicslayout.cpp
@@ -148,6 +148,10 @@ QT_BEGIN_NAMESPACE
     
     \a parent is passed to QGraphicsLayoutItem's constructor and the
     QGraphicsLayoutItem's isLayout argument is set to \e true.
+
+    If \a parent is a QGraphicsWidget the layout will be installed
+    on that widget. (Note that installing a layout will delete the old one
+    installed.)
 */
 QGraphicsLayout::QGraphicsLayout(QGraphicsLayoutItem *parent)
     : QGraphicsLayoutItem(*new QGraphicsLayoutPrivate)
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index 27ebb79..6176f2d 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -569,14 +569,10 @@ void QGraphicsScenePrivate::removeItemHelper(QGraphicsItem *item)
 
     item->d_ptr->clearSubFocus();
 
-    if (!item->d_ptr->inDestructor && item == tabFocusFirst) {
-        QGraphicsWidget *widget = static_cast<QGraphicsWidget *>(item);
-        widget->d_func()->fixFocusChainBeforeReparenting(0, 0);
-    }
-
     if (item->flags() & QGraphicsItem::ItemSendsScenePositionChanges)
         unregisterScenePosItem(item);
 
+    QGraphicsScene *oldScene = item->d_func()->scene;
     item->d_func()->scene = 0;
 
     //We need to remove all children first because they might use their parent
@@ -587,6 +583,11 @@ void QGraphicsScenePrivate::removeItemHelper(QGraphicsItem *item)
             q->removeItem(item->d_ptr->children.at(i));
     }
 
+    if (!item->d_ptr->inDestructor && item == tabFocusFirst) {
+        QGraphicsWidget *widget = static_cast<QGraphicsWidget *>(item);
+        widget->d_func()->fixFocusChainBeforeReparenting(0, oldScene, 0);
+    }
+
     // Unregister focus proxy.
     item->d_ptr->resetFocusProxy();
 
@@ -613,6 +614,19 @@ void QGraphicsScenePrivate::removeItemHelper(QGraphicsItem *item)
     if (item == lastActivePanel)
         lastActivePanel = 0;
 
+    // Cancel active touches
+    {
+        QMap<int, QGraphicsItem *>::iterator it = itemForTouchPointId.begin();
+        while (it != itemForTouchPointId.end()) {
+            if (it.value() == item) {
+                sceneCurrentTouchPoints.remove(it.key());
+                it = itemForTouchPointId.erase(it);
+            } else {
+                ++it;
+            }
+        }
+    }
+
     // Disable selectionChanged() for individual items
     ++selectionChanging;
     int oldSelectedItemsSize = selectedItems.size();
@@ -5679,17 +5693,22 @@ bool QGraphicsScenePrivate::sendTouchBeginEvent(QGraphicsItem *origin, QTouchEve
         touchEvent->setAccepted(acceptTouchEvents);
         res = acceptTouchEvents && sendEvent(item, touchEvent);
         eventAccepted = touchEvent->isAccepted();
-        item->d_ptr->acceptedTouchBeginEvent = (res && eventAccepted);
+        if (itemForTouchPointId.value(touchEvent->touchPoints().first().id()) == 0) {
+            // item was deleted
+            item = 0;
+        } else {
+            item->d_ptr->acceptedTouchBeginEvent = (res && eventAccepted);
+        }
         touchEvent->spont = false;
         if (res && eventAccepted) {
             // the first item to accept the TouchBegin gets an implicit grab.
             for (int i = 0; i < touchEvent->touchPoints().count(); ++i) {
                 const QTouchEvent::TouchPoint &touchPoint = touchEvent->touchPoints().at(i);
-                itemForTouchPointId[touchPoint.id()] = item;
+                itemForTouchPointId[touchPoint.id()] = item; // can be zero
             }
             break;
         }
-        if (item->isPanel())
+        if (item && item->isPanel())
             break;
     }
 
diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp
index 3f9f443..ffe64aa 100644
--- a/src/gui/graphicsview/qgraphicsview.cpp
+++ b/src/gui/graphicsview/qgraphicsview.cpp
@@ -545,6 +545,32 @@ qint64 QGraphicsViewPrivate::verticalScroll() const
 
 /*!
     \internal
+
+    Maps the given rectangle to the scene using QTransform::mapRect()
+*/
+QRectF QGraphicsViewPrivate::mapRectToScene(const QRect &rect) const
+{
+    if (dirtyScroll)
+        const_cast<QGraphicsViewPrivate *>(this)->updateScroll();
+    QRectF scrolled = QRectF(rect.translated(scrollX, scrollY));
+    return identityMatrix ? scrolled : matrix.inverted().mapRect(scrolled);
+}
+
+
+/*!
+    \internal
+
+    Maps the given rectangle from the scene using QTransform::mapRect()
+*/
+QRectF QGraphicsViewPrivate::mapRectFromScene(const QRectF &rect) const
+{
+    if (dirtyScroll)
+        const_cast<QGraphicsViewPrivate *>(this)->updateScroll();
+    return (identityMatrix ? rect : matrix.mapRect(rect)).translated(-scrollX, -scrollY);
+}
+
+/*!
+    \internal
 */
 void QGraphicsViewPrivate::updateScroll()
 {
diff --git a/src/gui/graphicsview/qgraphicsview.h b/src/gui/graphicsview/qgraphicsview.h
index 2aed0e6..90576e5 100644
--- a/src/gui/graphicsview/qgraphicsview.h
+++ b/src/gui/graphicsview/qgraphicsview.h
@@ -278,6 +278,7 @@ private:
     friend class QGraphicsSceneWidget;
     friend class QGraphicsScene;
     friend class QGraphicsScenePrivate;
+    friend class QGraphicsItemPrivate;
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QGraphicsView::CacheMode)
diff --git a/src/gui/graphicsview/qgraphicsview_p.h b/src/gui/graphicsview/qgraphicsview_p.h
index cd161ad..d4b718e 100644
--- a/src/gui/graphicsview/qgraphicsview_p.h
+++ b/src/gui/graphicsview/qgraphicsview_p.h
@@ -86,6 +86,9 @@ public:
     qint64 horizontalScroll() const;
     qint64 verticalScroll() const;
 
+    QRectF mapRectToScene(const QRect &rect) const;
+    QRectF mapRectFromScene(const QRectF &rect) const;
+
     QPointF mousePressItemPoint;
     QPointF mousePressScenePoint;
     QPoint mousePressViewPoint;
diff --git a/src/gui/graphicsview/qgraphicswidget.cpp b/src/gui/graphicsview/qgraphicswidget.cpp
index fe569f4..8de81c2 100644
--- a/src/gui/graphicsview/qgraphicswidget.cpp
+++ b/src/gui/graphicsview/qgraphicswidget.cpp
@@ -1054,7 +1054,7 @@ QVariant QGraphicsWidget::itemChange(GraphicsItemChange change, const QVariant &
         break;
     case ItemParentChange: {
         QGraphicsItem *parent = qVariantValue<QGraphicsItem *>(value);
-        d->fixFocusChainBeforeReparenting((parent && parent->isWidget()) ? static_cast<QGraphicsWidget *>(parent) : 0);
+        d->fixFocusChainBeforeReparenting((parent && parent->isWidget()) ? static_cast<QGraphicsWidget *>(parent) : 0, scene());
 
         // Deliver ParentAboutToChange.
         QEvent event(QEvent::ParentAboutToChange);
diff --git a/src/gui/graphicsview/qgraphicswidget_p.cpp b/src/gui/graphicsview/qgraphicswidget_p.cpp
index b747a30..5b6490f 100644
--- a/src/gui/graphicsview/qgraphicswidget_p.cpp
+++ b/src/gui/graphicsview/qgraphicswidget_p.cpp
@@ -743,7 +743,7 @@ bool QGraphicsWidgetPrivate::hasDecoration() const
 /**
  * is called after a reparent has taken place to fix up the focus chain(s)
  */
-void QGraphicsWidgetPrivate::fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *newScene)
+void QGraphicsWidgetPrivate::fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *oldScene, QGraphicsScene *newScene)
 {
     Q_Q(QGraphicsWidget);
 
@@ -789,7 +789,7 @@ void QGraphicsWidgetPrivate::fixFocusChainBeforeReparenting(QGraphicsWidget *new
     // update tabFocusFirst for oldScene if the item is going to be removed from oldScene
     if (newParent)
         newScene = newParent->scene();
-    QGraphicsScene *oldScene = q->scene();
+
     if (oldScene && newScene != oldScene)
         oldScene->d_func()->tabFocusFirst = firstOld;
 
diff --git a/src/gui/graphicsview/qgraphicswidget_p.h b/src/gui/graphicsview/qgraphicswidget_p.h
index eb53649..65e6962 100644
--- a/src/gui/graphicsview/qgraphicswidget_p.h
+++ b/src/gui/graphicsview/qgraphicswidget_p.h
@@ -98,7 +98,7 @@ public:
     mutable qreal *margins;
     void ensureMargins() const;
 
-    void fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *newScene = 0);
+    void fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *oldScene, QGraphicsScene *newScene = 0);
     void setLayout_helper(QGraphicsLayout *l);
 
     // Layouts
diff --git a/src/gui/image/qimage.h b/src/gui/image/qimage.h
index d8809ef..ce7f450 100644
--- a/src/gui/image/qimage.h
+++ b/src/gui/image/qimage.h
@@ -165,12 +165,16 @@ public:
     QRect rect() const;
 
     int depth() const;
+#ifdef QT_DEPRECATED
     QT_DEPRECATED int numColors() const;
+#endif
     int colorCount() const;
 
     QRgb color(int i) const;
     void setColor(int i, QRgb c);
+#ifdef QT_DEPRECATED
     QT_DEPRECATED void setNumColors(int);
+#endif
     void setColorCount(int);
 
     bool allGray() const;
@@ -178,7 +182,9 @@ public:
 
     uchar *bits();
     const uchar *bits() const;
+#ifdef QT_DEPRECATED
     QT_DEPRECATED int numBytes() const;
+#endif
     int byteCount() const;
 
     uchar *scanLine(int);
diff --git a/src/gui/image/qpixmap.h b/src/gui/image/qpixmap.h
index d95b4ee..e02b0d6 100644
--- a/src/gui/image/qpixmap.h
+++ b/src/gui/image/qpixmap.h
@@ -185,7 +185,9 @@ public:
     const uchar *qwsBits() const;
     int qwsBytesPerLine() const;
     QRgb *clut() const;
+#ifdef QT_DEPRECATED
     QT_DEPRECATED int numCols() const;
+#endif
     int colorCount() const;
 #elif defined(Q_WS_MAC)
     Qt::HANDLE macQDHandle() const;
diff --git a/src/gui/image/qpixmapcache.cpp b/src/gui/image/qpixmapcache.cpp
index b0b7d72..b7b29d7 100644
--- a/src/gui/image/qpixmapcache.cpp
+++ b/src/gui/image/qpixmapcache.cpp
@@ -424,6 +424,11 @@ QPixmapCache::KeyData* QPMCache::getKeyData(QPixmapCache::Key *key)
 
 Q_GLOBAL_STATIC(QPMCache, pm_cache)
 
+int Q_AUTOTEST_EXPORT q_QPixmapCache_keyHashSize()
+{
+    return pm_cache()->size();
+}
+
 QPixmapCacheEntry::~QPixmapCacheEntry()
 {
     pm_cache()->releaseKey(key);
diff --git a/src/gui/itemviews/qabstractitemview.cpp b/src/gui/itemviews/qabstractitemview.cpp
index d0aac2a..5ddba06 100644
--- a/src/gui/itemviews/qabstractitemview.cpp
+++ b/src/gui/itemviews/qabstractitemview.cpp
@@ -2882,6 +2882,8 @@ int QAbstractItemView::sizeHintForRow(int row) const
     if (row < 0 || row >= d->model->rowCount() || !model())
         return -1;
 
+    ensurePolished();
+
     QStyleOptionViewItemV4 option = d->viewOptionsV4();
     int height = 0;
     int colCount = d->model->columnCount(d->root);
@@ -2911,6 +2913,8 @@ int QAbstractItemView::sizeHintForColumn(int column) const
     if (column < 0 || column >= d->model->columnCount() || !model())
         return -1;
 
+    ensurePolished();
+
     QStyleOptionViewItemV4 option = d->viewOptionsV4();
     int width = 0;
     int rows = d->model->rowCount(d->root);
diff --git a/src/gui/itemviews/qlistwidget.cpp b/src/gui/itemviews/qlistwidget.cpp
index 929d688..0ce0e5e 100644
--- a/src/gui/itemviews/qlistwidget.cpp
+++ b/src/gui/itemviews/qlistwidget.cpp
@@ -173,7 +173,7 @@ void QListModel::move(int srcRow, int dstRow)
 {
     if (srcRow == dstRow
         || srcRow < 0 || srcRow >= items.count()
-        || dstRow < 0 || dstRow >= items.count())
+        || dstRow < 0 || dstRow > items.count())
         return;
 
     if (!beginMoveRows(QModelIndex(), srcRow, srcRow, QModelIndex(), dstRow))
diff --git a/src/gui/itemviews/qtreeview.cpp b/src/gui/itemviews/qtreeview.cpp
index 3ad9fbb..bcf9cfb 100644
--- a/src/gui/itemviews/qtreeview.cpp
+++ b/src/gui/itemviews/qtreeview.cpp
@@ -2774,6 +2774,7 @@ int QTreeView::sizeHintForColumn(int column) const
     d->executePostedLayout();
     if (d->viewItems.isEmpty())
         return -1;
+    ensurePolished();
     int w = 0;
     QStyleOptionViewItemV4 option = d->viewOptionsV4();
     const QVector<QTreeViewItem> viewItems = d->viewItems;
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index 9f4cd0c..8c63968 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -4092,9 +4092,15 @@ bool QApplication::notify(QObject *receiver, QEvent *e)
             bool acceptTouchEvents = widget->testAttribute(Qt::WA_AcceptTouchEvents);
             touchEvent->setWidget(widget);
             touchEvent->setAccepted(acceptTouchEvents);
+            QWeakPointer<QWidget> p = widget;
             res = acceptTouchEvents && d->notify_helper(widget, touchEvent);
             eventAccepted = touchEvent->isAccepted();
-            widget->setAttribute(Qt::WA_WState_AcceptedTouchBeginEvent, res && eventAccepted);
+            if (p.isNull()) {
+                // widget was deleted
+                widget = 0;
+            } else {
+                widget->setAttribute(Qt::WA_WState_AcceptedTouchBeginEvent, res && eventAccepted);
+            }
             touchEvent->spont = false;
             if (res && eventAccepted) {
                 // the first widget to accept the TouchBegin gets an implicit grab.
@@ -4103,7 +4109,7 @@ bool QApplication::notify(QObject *receiver, QEvent *e)
                     d->widgetForTouchPointId[touchPoint.id()] = widget;
                 }
                 break;
-            } else if (widget->isWindow() || widget->testAttribute(Qt::WA_NoMousePropagation)) {
+            } else if (p.isNull() || widget->isWindow() || widget->testAttribute(Qt::WA_NoMousePropagation)) {
                 break;
             }
             QPoint offset = widget->pos();
diff --git a/src/gui/painting/qbezier_p.h b/src/gui/painting/qbezier_p.h
index 7dbd0c2..c284871 100644
--- a/src/gui/painting/qbezier_p.h
+++ b/src/gui/painting/qbezier_p.h
@@ -166,8 +166,6 @@ inline void QBezier::coefficients(qreal t, qreal &a, qreal &b, qreal &c, qreal &
 
 inline QPointF QBezier::pointAt(qreal t) const
 {
-    Q_ASSERT(t >= 0);
-    Q_ASSERT(t <= 1);
 #if 1
     qreal a, b, c, d;
     coefficients(t, a, b, c, d);
diff --git a/src/gui/painting/qmatrix.h b/src/gui/painting/qmatrix.h
index 152b3c9..af48bcb 100644
--- a/src/gui/painting/qmatrix.h
+++ b/src/gui/painting/qmatrix.h
@@ -102,7 +102,9 @@ public:
 
     bool isInvertible() const { return !qFuzzyIsNull(_m11*_m22 - _m12*_m21); }
     qreal determinant() const { return _m11*_m22 - _m12*_m21; }
+#ifdef QT_DEPRECATED
     QT_DEPRECATED qreal det() const { return _m11*_m22 - _m12*_m21; }
+#endif
 
     QMatrix inverted(bool *invertible = 0) const;
 
diff --git a/src/gui/painting/qpaintdevice.h b/src/gui/painting/qpaintdevice.h
index 9148e4b..0f8191e 100644
--- a/src/gui/painting/qpaintdevice.h
+++ b/src/gui/painting/qpaintdevice.h
@@ -96,7 +96,9 @@ public:
     int logicalDpiY() const { return metric(PdmDpiY); }
     int physicalDpiX() const { return metric(PdmPhysicalDpiX); }
     int physicalDpiY() const { return metric(PdmPhysicalDpiY); }
+#ifdef QT_DEPRECATED
     QT_DEPRECATED int numColors() const { return metric(PdmNumColors); }
+#endif
     int colorCount() const { return metric(PdmNumColors); }
     int depth() const { return metric(PdmDepth); }
 
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index 4a72434..aa3b89e 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -3018,10 +3018,10 @@ void QRasterPaintEngine::drawCachedGlyphs(const QPointF &p, const QTextItemInt &
     QFontEngineGlyphCache::Type glyphType = ti.fontEngine->glyphFormat >= 0 ? QFontEngineGlyphCache::Type(ti.fontEngine->glyphFormat) : d->glyphCacheType;
 
     QImageTextureGlyphCache *cache =
-        (QImageTextureGlyphCache *) ti.fontEngine->glyphCache(glyphType, s->matrix);
+        (QImageTextureGlyphCache *) ti.fontEngine->glyphCache(0, glyphType, s->matrix);
     if (!cache) {
         cache = new QImageTextureGlyphCache(glyphType, s->matrix);
-        ti.fontEngine->setGlyphCache(glyphType, cache);
+        ti.fontEngine->setGlyphCache(0, cache);
     }
 
     cache->populate(ti, glyphs, positions);
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index 66bf4f7..8ed126f 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -1317,6 +1317,90 @@ void QPainterPrivate::updateState(QPainterState *newState)
     Another workaround is to convert the paths to polygons first and then draw the
     polygons instead.
 
+    \section1 Performance
+
+    QPainter is a rich framework that allows developers to do a great
+    variety of graphical operations, such as gradients, composition
+    modes and vector graphics. And QPainter can do this across a
+    variety of different hardware and software stacks. Naturally the
+    underlying combination of hardware and software has some
+    implications for performance, and ensuring that every single
+    operation is fast in combination with all the various combinations
+    of composition modes, brushes, clipping, transformation, etc, is
+    close to an impossible task because of the number of
+    permutations. As a compromise we have selected a subset of the
+    QPainter API and backends, were performance is guaranteed to be as
+    good as we can sensibly get it for the given combination of
+    hardware and software.
+
+    The backends we focus on as high-performance engines are:
+
+    \list
+
+    \o Raster - This backend implements all rendering in pure software
+    and is always used to render into QImages. For optimal performance
+    only use the format types QImage::Format_ARGB32_Premultiplied,
+    QImage::Format_RGB32 or QImage::Format_RGB16. Any other format,
+    including QImage::Format_ARGB32, has significantly worse
+    performance. This engine is also used by default on Windows and on
+    QWS. It can be used as default graphics system on any
+    OS/hardware/software combination by passing \c {-graphicssystem
+    raster} on the command line
+
+    \o OpenGL 2.0 (ES) - This backend is the primary backend for
+    hardware accelerated graphics. It can be run on desktop machines
+    and embedded devices supporting the OpenGL 2.0 or OpenGL/ES 2.0
+    specification. This includes most graphics chips produced in the
+    last couple of years. The engine can be enabled by using QPainter
+    onto a QGLWidget or by passing \c {-graphicssystem opengl} on the
+    command line when the underlying system supports it.
+
+    \o OpenVG - This backend implements the Khronos standard for 2D
+    and Vector Graphics. It is primarily for embedded devices with
+    hardware support for OpenVG.  The engine can be enabled by
+    passing \c {-graphicssystem openvg} on the command line when
+    the underlying system supports it.
+
+    \endlist
+
+    These operations are:
+
+    \list
+
+    \o Simple transformations, meaning translation and scaling, pluss
+    0, 90, 180, 270 degree rotations.
+
+    \o \c drawPixmap() in combination with simple transformations and
+    opacity with non-smooth transformation mode
+    (\c QPainter::SmoothPixmapTransform not enabled as a render hint).
+
+    \o Text drawing with regular font sizes with simple
+    transformations with solid colors using no or 8-bit antialiasing.
+
+    \o Rectangle fills with solid color, two-color linear gradients
+    and simple transforms.
+
+    \o Rectangular clipping with simple transformations and intersect
+    clip.
+
+    \o Composition Modes \c QPainter::CompositionMode_Source and
+    QPainter::CompositionMode_SourceOver
+
+    \o Rounded rectangle filling using solid color and two-color
+    linear gradients fills.
+
+    \o 3x3 patched pixmaps, via qDrawBorderPixmap.
+
+    \endlist
+
+    This list gives an indication of which features to safely use in
+    an application where performance is critical. For certain setups,
+    other operations may be fast too, but before making extensive use
+    of them, it is recommended to benchmark and verify them on the
+    system where the software will run in the end. There are also
+    cases where expensive operations are ok to use, for instance when
+    the result is cached in a QPixmap.
+
     \sa QPaintDevice, QPaintEngine, {QtSvg Module}, {Basic Drawing Example},
         {Drawing Utility Functions}
 */
diff --git a/src/gui/painting/qprinterinfo_unix.cpp b/src/gui/painting/qprinterinfo_unix.cpp
index 6684ff7..930785b 100644
--- a/src/gui/painting/qprinterinfo_unix.cpp
+++ b/src/gui/painting/qprinterinfo_unix.cpp
@@ -75,7 +75,9 @@ private:
     QString                     m_name;
     bool                        m_isNull;
     bool                        m_default;
-    QList<QPrinter::PaperSize>  m_paperSizes;
+    mutable bool                m_mustGetPaperSizes;
+    mutable QList<QPrinter::PaperSize> m_paperSizes;
+    int                         m_cupsPrinterIndex;
 
     QPrinterInfo*               q_ptr;
 };
@@ -838,16 +840,7 @@ QList<QPrinterInfo> QPrinterInfo::availablePrinters()
             list.append(QPrinterInfo(printerName));
             if (cupsPrinters[i].is_default)
                 list[i].d_ptr->m_default = true;
-            // Find paper sizes.
-            cups.setCurrentPrinter(i);
-            const ppd_option_t* sizes = cups.pageSizes();
-            if (sizes) {
-                for (int j = 0; j < sizes->num_choices; ++j) {
-                    list[i].d_ptr->m_paperSizes.append(
-                            QPrinterInfoPrivate::string2PaperSize(
-                            QLatin1String(sizes->choices[j].choice)));
-                }
-            }
+            list[i].d_ptr->m_cupsPrinterIndex = i;
         }
     } else {
 #endif
@@ -909,16 +902,7 @@ QPrinterInfo::QPrinterInfo(const QPrinter& printer)
             if (printerName == printer.printerName()) {
                 if (cupsPrinters[i].is_default)
                     d->m_default = true;
-                // Find paper sizes.
-                cups.setCurrentPrinter(i);
-                const ppd_option_t* sizes = cups.pageSizes();
-                if (sizes) {
-                    for (int j = 0; j < sizes->num_choices; ++j) {
-                        d->m_paperSizes.append(
-                                QPrinterInfoPrivate::string2PaperSize(
-                                QLatin1String(sizes->choices[j].choice)));
-                    }
-                }
+                d->m_cupsPrinterIndex = i;
                 return;
             }
         }
@@ -983,6 +967,26 @@ bool QPrinterInfo::isDefault() const
 QList< QPrinter::PaperSize> QPrinterInfo::supportedPaperSizes() const
 {
     const Q_D(QPrinterInfo);
+    if (d->m_mustGetPaperSizes) {
+        d->m_mustGetPaperSizes = false;
+
+#if !defined(QT_NO_CUPS) && !defined(QT_NO_LIBRARY)
+        QCUPSSupport cups;
+        if (QCUPSSupport::isAvailable()) {
+            // Find paper sizes from CUPS.
+            cups.setCurrentPrinter(d->m_cupsPrinterIndex);
+            const ppd_option_t* sizes = cups.pageSizes();
+            if (sizes) {
+                for (int j = 0; j < sizes->num_choices; ++j) {
+                    d->m_paperSizes.append(
+                        QPrinterInfoPrivate::string2PaperSize(
+                            QLatin1String(sizes->choices[j].choice)));
+                }
+            }
+        }
+#endif
+
+    }
     return d->m_paperSizes;
 }
 
@@ -993,6 +997,8 @@ QPrinterInfoPrivate::QPrinterInfoPrivate()
 {
     m_isNull = true;
     m_default = false;
+    m_mustGetPaperSizes = true;
+    m_cupsPrinterIndex = 0;
     q_ptr = 0;
 }
 
@@ -1001,6 +1007,8 @@ QPrinterInfoPrivate::QPrinterInfoPrivate(const QString& name)
     m_name = name;
     m_isNull = false;
     m_default = false;
+    m_mustGetPaperSizes = true;
+    m_cupsPrinterIndex = 0;
     q_ptr = 0;
 }
 
diff --git a/src/gui/painting/qregion.h b/src/gui/painting/qregion.h
index 2a1be86..f99fbf6 100644
--- a/src/gui/painting/qregion.h
+++ b/src/gui/painting/qregion.h
@@ -116,7 +116,9 @@ public:
     QRect boundingRect() const;
     QVector<QRect> rects() const;
     void setRects(const QRect *rect, int num);
+#ifdef QT_DEPRECATED
     QT_DEPRECATED int numRects() const;
+#endif
     int rectCount() const;
 
     const QRegion operator|(const QRegion &r) const;
diff --git a/src/gui/painting/qtextureglyphcache_p.h b/src/gui/painting/qtextureglyphcache_p.h
index 57473d1..bb0c630 100644
--- a/src/gui/painting/qtextureglyphcache_p.h
+++ b/src/gui/painting/qtextureglyphcache_p.h
@@ -76,7 +76,7 @@ class Q_GUI_EXPORT QTextureGlyphCache : public QFontEngineGlyphCache
 {
 public:
     QTextureGlyphCache(QFontEngineGlyphCache::Type type, const QTransform &matrix)
-        : QFontEngineGlyphCache(matrix), m_w(0), m_h(0), m_cx(0), m_cy(0), m_type(type) { }
+        : QFontEngineGlyphCache(matrix, type), m_w(0), m_h(0), m_cx(0), m_cy(0) { }
 
     virtual ~QTextureGlyphCache() { }
 
@@ -98,8 +98,6 @@ public:
     virtual void resizeTextureData(int width, int height) = 0;
     virtual int glyphMargin() const { return 0; }
 
-    QFontEngineGlyphCache::Type cacheType() const { return m_type; }
-
     virtual void fillTexture(const Coord &coord, glyph_t glyph) = 0;
 
     inline void createCache(int width, int height) {
@@ -121,7 +119,6 @@ protected:
     int m_h; // image height
     int m_cx; // current x
     int m_cy; // current y
-    QFontEngineGlyphCache::Type m_type;
 };
 
 
diff --git a/src/gui/text/qfontengine.cpp b/src/gui/text/qfontengine.cpp
index 27fc3c1..d364025 100644
--- a/src/gui/text/qfontengine.cpp
+++ b/src/gui/text/qfontengine.cpp
@@ -185,22 +185,11 @@ QFontEngine::QFontEngine()
 
 QFontEngine::~QFontEngine()
 {
-    for (GlyphPointerHash::const_iterator it = m_glyphPointerHash.constBegin(),
-            end = m_glyphPointerHash.constEnd(); it != end; ++it) {
-        for (QList<QFontEngineGlyphCache*>::const_iterator it2 = it.value().constBegin(),
-                end2 = it.value().constEnd(); it2 != end2; ++it2) {
-            delete *it2;
-        }
-    }
-    m_glyphPointerHash.clear();
-    for (GlyphIntHash::const_iterator it = m_glyphIntHash.constBegin(),
-            end = m_glyphIntHash.constEnd(); it != end; ++it) {
-        for (QList<QFontEngineGlyphCache*>::const_iterator it2 = it.value().constBegin(),
-                end2 = it.value().constEnd(); it2 != end2; ++it2) {
-            delete *it2;
-        }
+    for (QLinkedList<GlyphCacheEntry>::const_iterator it = m_glyphCaches.constBegin(),
+            end = m_glyphCaches.constEnd(); it != end; ++it) {
+        delete it->cache;
     }
-    m_glyphIntHash.clear();
+    m_glyphCaches.clear();
     qHBFreeFace(hbFace);
 }
 
@@ -713,103 +702,30 @@ QByteArray QFontEngine::getSfntTable(uint tag) const
     return table;
 }
 
-void QFontEngine::expireGlyphCache()
-{
-    if (m_glyphCacheQueue.count() > 10) { // hold only 10 caches in memory.
-        QFontEngineGlyphCache *old = m_glyphCacheQueue.takeFirst();
-        // remove the value from either of our hashes
-        for (GlyphPointerHash::iterator i = m_glyphPointerHash.begin(); i != m_glyphPointerHash.end(); ++i) {
-            QList<QFontEngineGlyphCache *> list = i.value();
-            if (list.removeAll(old)) {
-                if (list.isEmpty())
-                    m_glyphPointerHash.remove(i.key());
-                else
-                    m_glyphPointerHash.insert(i.key(), list);
-                break;
-            }
-        }
-        for (GlyphIntHash::iterator i = m_glyphIntHash.begin(); i != m_glyphIntHash.end(); ++i) {
-            QList<QFontEngineGlyphCache *> list = i.value();
-            if (list.removeAll(old)) {
-                if (list.isEmpty())
-                    m_glyphIntHash.remove(i.key());
-                else
-                    m_glyphIntHash.insert(i.key(), list);
-                break;
-            }
-        }
-        delete old;
-    }
-}
-
 void QFontEngine::setGlyphCache(void *key, QFontEngineGlyphCache *data)
 {
     Q_ASSERT(data);
-    QList<QFontEngineGlyphCache*> items = m_glyphPointerHash.value(key);
-
-    for (QList<QFontEngineGlyphCache*>::iterator it = items.begin(), end = items.end(); it != end; ++it) {
-        QFontEngineGlyphCache *c = *it;
-        if (qtransform_equals_no_translate(c->m_transform, data->m_transform)) {
-            if (c == data)
-                return;
-            items.removeAll(c);
-            delete c;
-            break;
-        }
-    }
-    items.append(data);
-    m_glyphPointerHash.insert(key, items);
 
-    m_glyphCacheQueue.append(data);
-    expireGlyphCache();
-}
+    GlyphCacheEntry entry = { key, data };
+    if (m_glyphCaches.contains(entry))
+        return;
 
-void QFontEngine::setGlyphCache(QFontEngineGlyphCache::Type key, QFontEngineGlyphCache *data)
-{
-    Q_ASSERT(data);
-    QList<QFontEngineGlyphCache*> items = m_glyphIntHash.value(key);
-
-    for (QList<QFontEngineGlyphCache*>::iterator it = items.begin(), end = items.end(); it != end; ++it) {
-        QFontEngineGlyphCache *c = *it;
-        if (qtransform_equals_no_translate(c->m_transform, data->m_transform)) {
-            if (c == data)
-                return;
-            items.removeAll(c);
-            delete c;
-            break;
-        }
-    }
-    items.append(data);
-    m_glyphIntHash.insert(key, items);
+    // Limit the glyph caches to 4. This covers all 90 degree rotations and limits
+    // memory use when there is continous or random rotation
+    if (m_glyphCaches.size() == 4)
+        delete m_glyphCaches.takeLast().cache;
 
-    m_glyphCacheQueue.append(data);
-    expireGlyphCache();
-}
+    m_glyphCaches.push_front(entry);
 
-QFontEngineGlyphCache *QFontEngine::glyphCache(void *key, const QTransform &transform) const
-{
-    QList<QFontEngineGlyphCache*> items = m_glyphPointerHash.value(key);
-
-    for (QList<QFontEngineGlyphCache*>::iterator it = items.begin(), end = items.end(); it != end; ++it) {
-        QFontEngineGlyphCache *c = *it;
-        if (qtransform_equals_no_translate(c->m_transform, transform)) {
-            m_glyphCacheQueue.removeAll(c); // last used, move it up
-            m_glyphCacheQueue.append(c);
-            return c;
-        }
-    }
-    return 0;
 }
 
-QFontEngineGlyphCache *QFontEngine::glyphCache(QFontEngineGlyphCache::Type key, const QTransform &transform) const
+QFontEngineGlyphCache *QFontEngine::glyphCache(void *key, QFontEngineGlyphCache::Type type, const QTransform &transform) const
 {
-    QList<QFontEngineGlyphCache*> items = m_glyphIntHash.value(key);
-
-    for (QList<QFontEngineGlyphCache*>::iterator it = items.begin(), end = items.end(); it != end; ++it) {
-        QFontEngineGlyphCache *c = *it;
-        if (qtransform_equals_no_translate(c->m_transform, transform)) {
-            m_glyphCacheQueue.removeAll(c); // last used, move it up
-            m_glyphCacheQueue.append(c);
+    for (QLinkedList<GlyphCacheEntry>::const_iterator it = m_glyphCaches.constBegin(), end = m_glyphCaches.constEnd(); it != end; ++it) {
+        QFontEngineGlyphCache *c = it->cache;
+        if (key == it->context
+            && type == c->cacheType()
+            && qtransform_equals_no_translate(c->m_transform, transform)) {
             return c;
         }
     }
diff --git a/src/gui/text/qfontengine_p.h b/src/gui/text/qfontengine_p.h
index 728c344..a9883b4 100644
--- a/src/gui/text/qfontengine_p.h
+++ b/src/gui/text/qfontengine_p.h
@@ -56,6 +56,7 @@
 #include "QtCore/qglobal.h"
 #include "QtCore/qatomic.h"
 #include <QtCore/qvarlengtharray.h>
+#include <QtCore/QLinkedList>
 #include "private/qtextengine_p.h"
 #include "private/qfont_p.h"
 
@@ -219,9 +220,7 @@ public:
     virtual HB_Error getPointInOutline(HB_Glyph glyph, int flags, hb_uint32 point, HB_Fixed *xpos, HB_Fixed *ypos, hb_uint32 *nPoints);
 
     void setGlyphCache(void *key, QFontEngineGlyphCache *data);
-    void setGlyphCache(QFontEngineGlyphCache::Type key, QFontEngineGlyphCache *data);
-    QFontEngineGlyphCache *glyphCache(void *key, const QTransform &transform) const;
-    QFontEngineGlyphCache *glyphCache(QFontEngineGlyphCache::Type key, const QTransform &transform) const;
+    QFontEngineGlyphCache *glyphCache(void *key, QFontEngineGlyphCache::Type type, const QTransform &transform) const;
 
     static const uchar *getCMap(const uchar *table, uint tableSize, bool *isSymbolFont, int *cmapSize);
     static quint32 getTrueTypeGlyphIndex(const uchar *cmap, uint unicode);
@@ -254,12 +253,13 @@ protected:
     static const QVector<QRgb> &grayPalette();
 
 private:
-    /// remove old entries from the glyph cache. Helper method for the setGlyphCache ones.
-    void expireGlyphCache();
+    struct GlyphCacheEntry {
+        void *context;
+        QFontEngineGlyphCache *cache;
+        bool operator==(const GlyphCacheEntry &other) { return context == other.context && cache == other.cache; }
+    };
 
-    GlyphPointerHash m_glyphPointerHash;
-    GlyphIntHash m_glyphIntHash;
-    mutable QList<QFontEngineGlyphCache*> m_glyphCacheQueue;
+    mutable QLinkedList<GlyphCacheEntry> m_glyphCaches;
 };
 
 inline bool operator ==(const QFontEngine::FaceId &f1, const QFontEngine::FaceId &f2)
diff --git a/src/gui/text/qfontengineglyphcache_p.h b/src/gui/text/qfontengineglyphcache_p.h
index e04f4ac..c6112ba 100644
--- a/src/gui/text/qfontengineglyphcache_p.h
+++ b/src/gui/text/qfontengineglyphcache_p.h
@@ -75,17 +75,20 @@ QT_BEGIN_NAMESPACE
 class QFontEngineGlyphCache
 {
 public:
-    QFontEngineGlyphCache(const QTransform &matrix) : m_transform(matrix) { }
-
     enum Type {
         Raster_RGBMask,
         Raster_A8,
         Raster_Mono
     };
 
+    QFontEngineGlyphCache(const QTransform &matrix, Type type) : m_transform(matrix), m_type(type) { }
+
     virtual ~QFontEngineGlyphCache() { }
 
+    Type cacheType() const { return m_type; }
+
     QTransform m_transform;
+    QFontEngineGlyphCache::Type m_type;
 };
 typedef QHash<void *, QList<QFontEngineGlyphCache *> > GlyphPointerHash;
 typedef QHash<int, QList<QFontEngineGlyphCache *> > GlyphIntHash;
diff --git a/src/gui/widgets/qabstractspinbox.cpp b/src/gui/widgets/qabstractspinbox.cpp
index 8257a16..c036c32 100644
--- a/src/gui/widgets/qabstractspinbox.cpp
+++ b/src/gui/widgets/qabstractspinbox.cpp
@@ -1901,8 +1901,10 @@ QValidator::State QSpinBoxValidator::validate(QString &input, int &pos) const
     if (dptr->specialValueText.size() > 0 && input == dptr->specialValueText)
         return QValidator::Acceptable;
 
-    if (!dptr->prefix.isEmpty() && !input.startsWith(dptr->prefix))
+    if (!dptr->prefix.isEmpty() && !input.startsWith(dptr->prefix)) {
         input.prepend(dptr->prefix);
+        pos += dptr->prefix.length();
+    }
 
     if (!dptr->suffix.isEmpty() && !input.endsWith(dptr->suffix))
         input.append(dptr->suffix);
diff --git a/src/gui/widgets/qdockarealayout.cpp b/src/gui/widgets/qdockarealayout.cpp
index 0a26a77..cf82da0 100644
--- a/src/gui/widgets/qdockarealayout.cpp
+++ b/src/gui/widgets/qdockarealayout.cpp
@@ -1303,9 +1303,9 @@ QDockAreaLayoutInfo *QDockAreaLayoutInfo::info(const QList<int> &path)
         index = -index - 1;
     if (index >= item_list.count())
         return this;
-    if (path.count() == 1 || item_list.at(index).subinfo == 0)
+    if (path.count() == 1 || item_list[index].subinfo == 0)
         return this;
-    return item_list.at(index).subinfo->info(path.mid(1));
+    return item_list[index].subinfo->info(path.mid(1));
 }
 
 QRect QDockAreaLayoutInfo::itemRect(int index) const
diff --git a/src/gui/widgets/qlcdnumber.h b/src/gui/widgets/qlcdnumber.h
index e65637d..b7162cd 100644
--- a/src/gui/widgets/qlcdnumber.h
+++ b/src/gui/widgets/qlcdnumber.h
@@ -82,9 +82,10 @@ public:
     };
 
     bool smallDecimalPoint() const;
-
+#ifdef QT_DEPRECATED
     QT_DEPRECATED int numDigits() const;
     QT_DEPRECATED void setNumDigits(int nDigits);
+#endif
     int digitCount() const;
     void setDigitCount(int nDigits);
 
diff --git a/src/gui/widgets/qlineedit.cpp b/src/gui/widgets/qlineedit.cpp
index 2c1acdb..15dcda2 100644
--- a/src/gui/widgets/qlineedit.cpp
+++ b/src/gui/widgets/qlineedit.cpp
@@ -1445,6 +1445,16 @@ bool QLineEdit::event(QEvent * e)
         d->control->processEvent(e);
     } else if (e->type() == QEvent::KeyRelease) {
         d->control->setCursorBlinkPeriod(QApplication::cursorFlashTime());
+    } else if (e->type() == QEvent::Show) {
+        //In order to get the cursor blinking if QComboBox::setEditable is called when the combobox has focus
+        if (hasFocus()) {
+            d->control->setCursorBlinkPeriod(QApplication::cursorFlashTime());
+            QStyleOptionFrameV2 opt;
+            initStyleOption(&opt);
+            if ((!hasSelectedText() && d->control->preeditAreaText().isEmpty())
+                || style()->styleHint(QStyle::SH_BlinkCursorWhenTextSelected, &opt, this))
+                d->setCursorVisible(true);
+        }
     }
 
 #ifdef QT_KEYPAD_NAVIGATION
diff --git a/src/gui/widgets/qprintpreviewwidget.h b/src/gui/widgets/qprintpreviewwidget.h
index 08e596d..d8504de 100644
--- a/src/gui/widgets/qprintpreviewwidget.h
+++ b/src/gui/widgets/qprintpreviewwidget.h
@@ -82,7 +82,9 @@ public:
     ViewMode viewMode() const;
     ZoomMode zoomMode() const;
     int currentPage() const;
+#ifdef QT_DEPRECATED
     QT_DEPRECATED int numPages() const;
+#endif
     int pageCount() const;
     void setVisible(bool visible);
 
diff --git a/src/multimedia/audio/audio.pri b/src/multimedia/audio/audio.pri
index c445941..625b871c 100644
--- a/src/multimedia/audio/audio.pri
+++ b/src/multimedia/audio/audio.pri
@@ -17,6 +17,8 @@ SOURCES += $$PWD/qaudio.cpp \
            $$PWD/qaudioengine.cpp \
            $$PWD/qaudiodevicefactory.cpp
 
+contains(QT_CONFIG, audio-backend) {
+
 mac {
     HEADERS +=  $$PWD/qaudioinput_mac_p.h \
                 $$PWD/qaudiooutput_mac_p.h \
@@ -51,3 +53,6 @@ mac {
         }
     }
 }
+} else {
+    DEFINES += QT_NO_AUDIO_BACKEND
+}
diff --git a/src/multimedia/audio/qaudiodevicefactory.cpp b/src/multimedia/audio/qaudiodevicefactory.cpp
index 89e4394..bc1656d 100644
--- a/src/multimedia/audio/qaudiodevicefactory.cpp
+++ b/src/multimedia/audio/qaudiodevicefactory.cpp
@@ -45,6 +45,7 @@
 #include <private/qfactoryloader_p.h>
 #include "qaudiodevicefactory_p.h"
 
+#ifndef QT_NO_AUDIO_BACKEND
 #if defined(Q_OS_WIN)
 #include "qaudiodeviceinfo_win32_p.h"
 #include "qaudiooutput_win32_p.h"
@@ -58,6 +59,7 @@
 #include "qaudiooutput_alsa_p.h"
 #include "qaudioinput_alsa_p.h"
 #endif
+#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -125,10 +127,12 @@ public:
 QList<QAudioDeviceInfo> QAudioDeviceFactory::availableDevices(QAudio::Mode mode)
 {
     QList<QAudioDeviceInfo> devices;
+#ifndef QT_NO_AUDIO_BACKEND
 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA))
     foreach (const QByteArray &handle, QAudioDeviceInfoInternal::availableDevices(mode))
         devices << QAudioDeviceInfo(QLatin1String("builtin"), handle, mode);
 #endif
+#endif
     QFactoryLoader* l = loader();
 
     foreach (QString const& key, l->keys()) {
@@ -153,9 +157,11 @@ QAudioDeviceInfo QAudioDeviceFactory::defaultInputDevice()
         if (list.size() > 0)
             return QAudioDeviceInfo(QLatin1String("default"), list.at(0), QAudio::AudioInput);
     }
+#ifndef QT_NO_AUDIO_BACKEND
 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA))
     return QAudioDeviceInfo(QLatin1String("builtin"), QAudioDeviceInfoInternal::defaultInputDevice(), QAudio::AudioInput);
 #endif
+#endif
     return QAudioDeviceInfo();
 }
 
@@ -168,9 +174,11 @@ QAudioDeviceInfo QAudioDeviceFactory::defaultOutputDevice()
         if (list.size() > 0)
             return QAudioDeviceInfo(QLatin1String("default"), list.at(0), QAudio::AudioOutput);
     }
+#ifndef QT_NO_AUDIO_BACKEND
 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA))
     return QAudioDeviceInfo(QLatin1String("builtin"), QAudioDeviceInfoInternal::defaultOutputDevice(), QAudio::AudioOutput);
 #endif
+#endif
     return QAudioDeviceInfo();
 }
 
@@ -178,10 +186,12 @@ QAbstractAudioDeviceInfo* QAudioDeviceFactory::audioDeviceInfo(const QString &re
 {
     QAbstractAudioDeviceInfo *rc = 0;
 
+#ifndef QT_NO_AUDIO_BACKEND
 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA))
     if (realm == QLatin1String("builtin"))
         return new QAudioDeviceInfoInternal(handle, mode);
 #endif
+#endif
     QAudioEngineFactoryInterface* plugin =
         qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(realm));
 
@@ -205,10 +215,12 @@ QAbstractAudioInput* QAudioDeviceFactory::createInputDevice(QAudioDeviceInfo con
 {
     if (deviceInfo.isNull())
         return new QNullInputDevice();
+#ifndef QT_NO_AUDIO_BACKEND
 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA))
     if (deviceInfo.realm() == QLatin1String("builtin"))
         return new QAudioInputPrivate(deviceInfo.handle(), format);
 #endif
+#endif
     QAudioEngineFactoryInterface* plugin =
         qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(deviceInfo.realm()));
 
@@ -222,10 +234,12 @@ QAbstractAudioOutput* QAudioDeviceFactory::createOutputDevice(QAudioDeviceInfo c
 {
     if (deviceInfo.isNull())
         return new QNullOutputDevice();
+#ifndef QT_NO_AUDIO_BACKEND
 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA))
     if (deviceInfo.realm() == QLatin1String("builtin"))
         return new QAudioOutputPrivate(deviceInfo.handle(), format);
 #endif
+#endif
     QAudioEngineFactoryInterface* plugin =
         qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(deviceInfo.realm()));
 
diff --git a/src/multimedia/audio/qaudioinput.cpp b/src/multimedia/audio/qaudioinput.cpp
index 8b368d5..d81df7a 100644
--- a/src/multimedia/audio/qaudioinput.cpp
+++ b/src/multimedia/audio/qaudioinput.cpp
@@ -77,8 +77,12 @@ QT_BEGIN_NAMESPACE
     file, you can:
 
     \code
+      QFile outputFile;   // class member.
+      QAudioInput* audio; // class member.
+    \endcode
+
+    \code
     {
-      QFile outputFile;
       outputFile.setFileName("/tmp/test.raw");
       outputFile.open( QIODevice::WriteOnly | QIODevice::Truncate );
 
@@ -91,7 +95,13 @@ QT_BEGIN_NAMESPACE
       format.setByteOrder(QAudioFormat::LittleEndian);
       format.setSampleType(QAudioFormat::UnSignedInt);
 
-      QAudioInput *audio = new QAudioInput(format, this);
+      if (QAudioDeviceInfo info(QAudioDeviceInfo::defaultInputDevice());
+      if (!info.isFormatSupported(format)) {
+          qWarning()<<"default format not supported try to use nearest";
+          format = info.nearestFormat(format);
+      }
+
+      audio = new QAudioInput(format, this);
       QTimer::singleShot(3000, this, SLOT(stopRecording()));
       audio->start(outputFile);
       // Records audio for 3000ms
@@ -109,6 +119,7 @@ QT_BEGIN_NAMESPACE
     {
       audio->stop();
       outputFile->close();
+      delete audio;
     }
     \endcode
 
diff --git a/src/multimedia/audio/qaudiooutput.cpp b/src/multimedia/audio/qaudiooutput.cpp
index f8f2fa1..1c7b617 100644
--- a/src/multimedia/audio/qaudiooutput.cpp
+++ b/src/multimedia/audio/qaudiooutput.cpp
@@ -73,7 +73,11 @@ QT_BEGIN_NAMESPACE
     simple as:
 
     \code
-      QFile inputFile;
+      QFile inputFile;     // class member.
+      QAudioOutput* audio; // class member.
+    \endcode
+
+    \code
       inputFile.setFileName("/tmp/test.raw");
       inputFile.open(QIODevice::ReadOnly);
 
@@ -86,7 +90,13 @@ QT_BEGIN_NAMESPACE
       format.setByteOrder(QAudioFormat::LittleEndian);
       format.setSampleType(QAudioFormat::UnSignedInt);
 
-      QAudioOutput *audio = new QAudioOutput(format, this);
+      QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());
+      if (!info.isFormatSupported(format)) {
+          qWarning()<<"raw audio format not supported by backend, cannot play audio.";
+          return;
+      }
+
+      audio = new QAudioOutput(format, this);
       connect(audio,SIGNAL(stateChanged(QAudio::State)),SLOT(finishedPlaying(QAudio::State)));
       audio->start(inputFile);
 
@@ -104,6 +114,7 @@ QT_BEGIN_NAMESPACE
         if(state == QAudio::IdleState) {
           audio->stop();
           inputFile.close();
+          delete audio;
         }
       }
     \endcode
diff --git a/src/network/access/qnetworkrequest.cpp b/src/network/access/qnetworkrequest.cpp
index c91c608..923f2e3 100644
--- a/src/network/access/qnetworkrequest.cpp
+++ b/src/network/access/qnetworkrequest.cpp
@@ -49,6 +49,9 @@
 #include "QtCore/qdatetime.h"
 
 #include <ctype.h>
+#ifndef QT_NO_DATESTRING
+# include <stdio.h>
+#endif
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index 17af9cb..fb9bcb4 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -1554,7 +1554,6 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(const QPointF &p, QFontEngineGly
                                                 const QTextItemInt &ti)
 {
     Q_Q(QGL2PaintEngineEx);
-    QOpenGL2PaintEngineState *s = q->state();
 
     QVarLengthArray<QFixedPoint> positions;
     QVarLengthArray<glyph_t> glyphs;
@@ -1562,7 +1561,7 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(const QPointF &p, QFontEngineGly
     ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions);
 
     QGLTextureGlyphCache *cache =
-        (QGLTextureGlyphCache *) ti.fontEngine->glyphCache(ctx, QTransform());
+            (QGLTextureGlyphCache *) ti.fontEngine->glyphCache(ctx, glyphType, QTransform());
 
     if (!cache || cache->cacheType() != glyphType) {
         cache = new QGLTextureGlyphCache(ctx, glyphType, QTransform());
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index 25285b5..b6f8919 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -397,8 +397,7 @@ static inline GLint qgluProject(GLdouble objx, GLdouble objy, GLdouble objz,
     \i \link setDirectRendering() Direct rendering:\endlink Enabled.
     \i \link setOverlay() Overlay:\endlink Disabled.
     \i \link setPlane() Plane:\endlink 0 (i.e., normal plane).
-    \i \link setSampleBuffers() Multisample buffers:\endlink Enabled on
-       OpenGL/ES 2.0, disabled on other platforms.
+    \i \link setSampleBuffers() Multisample buffers:\endlink Disabled.
     \endlist
 */
 
@@ -4823,38 +4822,39 @@ QGLWidget::QGLWidget(QGLContext *context, QWidget *parent,
 
 void QGLExtensions::init_extensions()
 {
-    QList<QByteArray> extensions = QByteArray(reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS))).split(' ');
-    if (extensions.contains("GL_ARB_texture_rectangle"))
+    QGLExtensionMatcher extensions(reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)));
+
+    if (extensions.match("GL_ARB_texture_rectangle"))
         glExtensions |= TextureRectangle;
-    if (extensions.contains("GL_ARB_multisample"))
+    if (extensions.match("GL_ARB_multisample"))
         glExtensions |= SampleBuffers;
-    if (extensions.contains("GL_SGIS_generate_mipmap"))
+    if (extensions.match("GL_SGIS_generate_mipmap"))
         glExtensions |= GenerateMipmap;
-    if (extensions.contains("GL_ARB_texture_compression"))
+    if (extensions.match("GL_ARB_texture_compression"))
         glExtensions |= TextureCompression;
-    if (extensions.contains("GL_EXT_texture_compression_s3tc"))
+    if (extensions.match("GL_EXT_texture_compression_s3tc"))
         glExtensions |= DDSTextureCompression;
-    if (extensions.contains("GL_OES_compressed_ETC1_RGB8_texture"))
+    if (extensions.match("GL_OES_compressed_ETC1_RGB8_texture"))
         glExtensions |= ETC1TextureCompression;
-    if (extensions.contains("GL_IMG_texture_compression_pvrtc"))
+    if (extensions.match("GL_IMG_texture_compression_pvrtc"))
         glExtensions |= PVRTCTextureCompression;
-    if (extensions.contains("GL_ARB_fragment_program"))
+    if (extensions.match("GL_ARB_fragment_program"))
         glExtensions |= FragmentProgram;
-    if (extensions.contains("GL_ARB_fragment_shader"))
+    if (extensions.match("GL_ARB_fragment_shader"))
         glExtensions |= FragmentShader;
-    if (extensions.contains("GL_ARB_texture_mirrored_repeat"))
+    if (extensions.match("GL_ARB_texture_mirrored_repeat"))
         glExtensions |= MirroredRepeat;
-    if (extensions.contains("GL_EXT_framebuffer_object"))
+    if (extensions.match("GL_EXT_framebuffer_object"))
         glExtensions |= FramebufferObject;
-    if (extensions.contains("GL_EXT_stencil_two_side"))
+    if (extensions.match("GL_EXT_stencil_two_side"))
         glExtensions |= StencilTwoSide;
-    if (extensions.contains("GL_EXT_stencil_wrap"))
+    if (extensions.match("GL_EXT_stencil_wrap"))
         glExtensions |= StencilWrap;
-    if (extensions.contains("GL_EXT_packed_depth_stencil"))
+    if (extensions.match("GL_EXT_packed_depth_stencil"))
         glExtensions |= PackedDepthStencil;
-    if (extensions.contains("GL_NV_float_buffer"))
+    if (extensions.match("GL_NV_float_buffer"))
         glExtensions |= NVFloatBuffer;
-    if (extensions.contains("GL_ARB_pixel_buffer_object"))
+    if (extensions.match("GL_ARB_pixel_buffer_object"))
         glExtensions |= PixelBufferObject;
 #if defined(QT_OPENGL_ES_2)
     glExtensions |= FramebufferObject;
@@ -4862,26 +4862,26 @@ void QGLExtensions::init_extensions()
     glExtensions |= FragmentShader;
 #endif
 #if defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_1_CL)
-    if (extensions.contains("GL_OES_framebuffer_object"))
+    if (extensions.match("GL_OES_framebuffer_object"))
         glExtensions |= FramebufferObject;
 #endif
 #if defined(QT_OPENGL_ES)
-    if (extensions.contains("GL_OES_packed_depth_stencil"))
+    if (extensions.match("GL_OES_packed_depth_stencil"))
         glExtensions |= PackedDepthStencil;
 #endif
-    if (extensions.contains("GL_ARB_framebuffer_object")) {
+    if (extensions.match("GL_ARB_framebuffer_object")) {
         // ARB_framebuffer_object also includes EXT_framebuffer_blit.
         glExtensions |= FramebufferObject;
         glExtensions |= FramebufferBlit;
     }
 
-    if (extensions.contains("GL_EXT_framebuffer_blit"))
+    if (extensions.match("GL_EXT_framebuffer_blit"))
         glExtensions |= FramebufferBlit;
 
-    if (extensions.contains("GL_ARB_texture_non_power_of_two"))
+    if (extensions.match("GL_ARB_texture_non_power_of_two"))
         glExtensions |= NPOTTextures;
 
-    if (extensions.contains("GL_EXT_bgra"))
+    if (extensions.match("GL_EXT_bgra"))
         glExtensions |= BGRATextureFormat;
 }
 
diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h
index 615fb60..11770d3 100644
--- a/src/opengl/qgl_p.h
+++ b/src/opengl/qgl_p.h
@@ -133,9 +133,6 @@ public:
         : ref(1)
     {
         opts = QGL::DoubleBuffer | QGL::DepthBuffer | QGL::Rgba | QGL::DirectRendering | QGL::StencilBuffer;
-#if defined(QT_OPENGL_ES_2)
-        opts |= QGL::SampleBuffers;
-#endif
         pln = 0;
         depthSize = accumSize = stencilSize = redSize = greenSize = blueSize = alphaSize = -1;
         numSamples = -1;
@@ -613,6 +610,49 @@ private:
     friend class QGLContextGroup;
 };
 
+
+// This class can be used to match GL extensions with doing any mallocs. The
+// class assumes that the GL extension string ends with a space character,
+// which it should do on all conformant platforms. Create the object and pass
+// in a pointer to the extension string, then call match() on each extension
+// that should be matched. The match() function takes the extension name
+// *without* the terminating space character as input.
+
+class QGLExtensionMatcher
+{
+public:
+    QGLExtensionMatcher(const char *str)
+        : gl_extensions(str), gl_extensions_length(qstrlen(str))
+    {}
+
+    bool match(const char *str) {
+        int str_length = qstrlen(str);
+        const char *extensions = gl_extensions;
+        int extensions_length = gl_extensions_length;
+
+        while (1) {
+            // the total length that needs to be matched is the str_length +
+            // the space character that terminates the extension name
+            if (extensions_length < str_length + 1)
+                return false;
+            if (qstrncmp(extensions, str, str_length) == 0 && extensions[str_length] == ' ')
+                return true;
+
+            int split_pos = 0;
+            while (split_pos < extensions_length && extensions[split_pos] != ' ')
+                ++split_pos;
+            ++split_pos; // added for the terminating space character
+            extensions += split_pos;
+            extensions_length -= split_pos;
+        }
+        return false;
+    }
+
+private:
+    const char *gl_extensions;
+    int gl_extensions_length;
+};
+
 QT_END_NAMESPACE
 
 #endif // QGL_P_H
diff --git a/src/opengl/qgl_x11.cpp b/src/opengl/qgl_x11.cpp
index a037282..9c3fc79 100644
--- a/src/opengl/qgl_x11.cpp
+++ b/src/opengl/qgl_x11.cpp
@@ -343,8 +343,8 @@ void* qglx_getProcAddress(const char* procName)
     static bool triedResolvingGlxGetProcAddress = false;
     if (!triedResolvingGlxGetProcAddress) {
         triedResolvingGlxGetProcAddress = true;
-        QList<QByteArray> glxExt = QByteArray(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS)).split(' ');
-        if (glxExt.contains("GLX_ARB_get_proc_address")) {
+        QGLExtensionMatcher extensions(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS));
+        if (extensions.match("GLX_ARB_get_proc_address")) {
 #if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
             void *handle = dlopen(NULL, RTLD_LAZY);
             if (handle) {
@@ -523,8 +523,8 @@ bool QGLContext::chooseContext(const QGLContext* shareContext)
         if (!d->gpm)
             return false;
     }
-    QList<QByteArray> glxExt = QByteArray(glXQueryExtensionsString(xinfo->display(), xinfo->screen())).split(' ');
-    if (glxExt.contains("GLX_SGI_video_sync")) {
+    QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen()));
+    if (extensions.match("GLX_SGI_video_sync")) {
         if (d->glFormat.swapInterval() == -1)
             d->glFormat.setSwapInterval(0);
     } else {
@@ -630,8 +630,8 @@ void *QGLContext::tryVisual(const QGLFormat& f, int bufDepth)
     static bool useTranspExt = false;
     static bool useTranspExtChecked = false;
     if (f.plane() && !useTranspExtChecked && d->paintDevice) {
-        QByteArray estr(glXQueryExtensionsString(xinfo->display(), xinfo->screen()));
-        useTranspExt = estr.contains("GLX_EXT_visual_info");
+        QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen()));
+        useTranspExt = extensions.match("GLX_EXT_visual_info");
         //# (A bit simplistic; that could theoretically be a substring)
         if (useTranspExt) {
             QByteArray cstr(glXGetClientString(xinfo->display(), GLX_VENDOR));
@@ -875,8 +875,8 @@ void QGLContext::swapBuffers() const
             static bool resolved = false;
             if (!resolved) {
                 const QX11Info *xinfo = qt_x11Info(d->paintDevice);
-                QList<QByteArray> glxExt = QByteArray(glXQueryExtensionsString(xinfo->display(), xinfo->screen())).split(' ');
-                if (glxExt.contains("GLX_SGI_video_sync")) {
+                QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen()));
+                if (extensions.match("GLX_SGI_video_sync")) {
                     glXGetVideoSyncSGI =  (qt_glXGetVideoSyncSGI)qglx_getProcAddress("glXGetVideoSyncSGI");
                     glXWaitVideoSyncSGI = (qt_glXWaitVideoSyncSGI)qglx_getProcAddress("glXWaitVideoSyncSGI");
                 }
@@ -1107,8 +1107,8 @@ void *QGLContext::getProcAddress(const QString &proc) const
     if (resolved && !glXGetProcAddressARB)
         return 0;
     if (!glXGetProcAddressARB) {
-        QList<QByteArray> glxExt = QByteArray(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS)).split(' ');
-        if (glxExt.contains("GLX_ARB_get_proc_address")) {
+        QGLExtensionMatcher extensions(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS));
+        if (extensions.match("GLX_ARB_get_proc_address")) {
 #if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
             void *handle = dlopen(NULL, RTLD_LAZY);
             if (handle) {
@@ -1609,8 +1609,8 @@ static bool qt_resolveTextureFromPixmap(QPaintDevice *paintDevice)
             return false; // Can't use TFP without NPOT
         }
         const QX11Info *xinfo = qt_x11Info(paintDevice);
-        QList<QByteArray> glxExt = QByteArray(glXQueryExtensionsString(xinfo->display(), xinfo->screen())).split(' ');
-        if (glxExt.contains("GLX_EXT_texture_from_pixmap")) {
+        QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen()));
+        if (extensions.match("GLX_EXT_texture_from_pixmap")) {
             glXBindTexImageEXT = (qt_glXBindTexImageEXT) qglx_getProcAddress("glXBindTexImageEXT");
             glXReleaseTexImageEXT = (qt_glXReleaseTexImageEXT) qglx_getProcAddress("glXReleaseTexImageEXT");
         }
diff --git a/src/openvg/qpixmapdata_vg.cpp b/src/openvg/qpixmapdata_vg.cpp
index 5d5fcbf..af6f0f0 100644
--- a/src/openvg/qpixmapdata_vg.cpp
+++ b/src/openvg/qpixmapdata_vg.cpp
@@ -250,6 +250,10 @@ VGImage QVGPixmapData::toVGImage()
     if (vgImage == VG_INVALID_HANDLE) {
         vgImage = vgCreateImage
             (VG_sARGB_8888_PRE, w, h, VG_IMAGE_QUALITY_FASTER);
+
+        // Bail out if we run out of GPU memory - try again next time.
+        if (vgImage == VG_INVALID_HANDLE)
+            return VG_INVALID_HANDLE;
     }
 
     if (!source.isNull() && recreate) {
@@ -280,6 +284,10 @@ VGImage QVGPixmapData::toVGImage(qreal opacity)
         if (vgImageOpacity == VG_INVALID_HANDLE) {
             vgImageOpacity = vgCreateImage
                 (VG_sARGB_8888_PRE, w, h, VG_IMAGE_QUALITY_FASTER);
+
+            // Bail out if we run out of GPU memory - try again next time.
+            if (vgImageOpacity == VG_INVALID_HANDLE)
+                return VG_INVALID_HANDLE;
         }
         VGfloat matrix[20] = {
             1.0f, 0.0f, 0.0f, 0.0f,
diff --git a/src/qt_install.pri b/src/qt_install.pri
index ebeac8d..5b29942 100644
--- a/src/qt_install.pri
+++ b/src/qt_install.pri
@@ -30,6 +30,12 @@ qt_install_headers {
     targ_headers.files = $$INSTALL_HEADERS
     targ_headers.path = $$[QT_INSTALL_HEADERS]/$$TARGET
     INSTALLS += targ_headers
+
+    contains(QT_CONFIG,private_tests) {
+        private_headers.files = $$SYNCQT.PRIVATE_HEADER_FILES
+        private_headers.path = $$[QT_INSTALL_HEADERS]/$$TARGET/private
+        INSTALLS += private_headers
+    }
 }
 
 embedded:equals(TARGET, QtGui) {
diff --git a/src/s60installs/bwins/QtCoreu.def b/src/s60installs/bwins/QtCoreu.def
index 49c4361..fe752c8 100644
--- a/src/s60installs/bwins/QtCoreu.def
+++ b/src/s60installs/bwins/QtCoreu.def
@@ -2264,7 +2264,7 @@ EXPORTS
 	?isSequential@QIODevice@@UBE_NXZ @ 2263 NONAME ; bool QIODevice::isSequential(void) const
 	?isSequential@QIODevicePrivate@@QBE_NXZ @ 2264 NONAME ; bool QIODevicePrivate::isSequential(void) const
 	?isSequential@QProcess@@UBE_NXZ @ 2265 NONAME ; bool QProcess::isSequential(void) const
-	?isSignalConnected@QObjectPrivate@@QBE_NH@Z @ 2266 NONAME ; bool QObjectPrivate::isSignalConnected(int) const
+	?isSignalConnected@QObjectPrivate@@QBE_NI@Z @ 2266 NONAME ; bool QObjectPrivate::isSignalConnected(unsigned int) const
 	?isSimpleText@QString@@QBE_NXZ @ 2267 NONAME ; bool QString::isSimpleText(void) const
 	?isSingleShot@QTimer@@QBE_NXZ @ 2268 NONAME ; bool QTimer::isSingleShot(void) const
 	?isSpace@QChar@@QBE_NXZ @ 2269 NONAME ; bool QChar::isSpace(void) const
diff --git a/src/s60installs/eabi/QtGuiu.def b/src/s60installs/eabi/QtGuiu.def
index 429ca79..b6862e5 100644
--- a/src/s60installs/eabi/QtGuiu.def
+++ b/src/s60installs/eabi/QtGuiu.def
@@ -698,13 +698,13 @@ EXPORTS
 	_ZN11QFontDialogD2Ev @ 697 NONAME
 	_ZN11QFontEngine11boundingBoxEjRK10QTransform @ 698 NONAME
 	_ZN11QFontEngine11grayPaletteEv @ 699 NONAME
-	_ZN11QFontEngine13setGlyphCacheEN21QFontEngineGlyphCache4TypeEPS0_ @ 700 NONAME
+	_ZN11QFontEngine13setGlyphCacheEN21QFontEngineGlyphCache4TypeEPS0_ @ 700 NONAME ABSENT
 	_ZN11QFontEngine13setGlyphCacheEPvP21QFontEngineGlyphCache @ 701 NONAME
 	_ZN11QFontEngine15addGlyphsToPathEPjP11QFixedPointiP12QPainterPath6QFlagsIN9QTextItem10RenderFlagEE @ 702 NONAME
 	_ZN11QFontEngine16addOutlineToPathEffRK12QGlyphLayoutP12QPainterPath6QFlagsIN9QTextItem10RenderFlagEE @ 703 NONAME
 	_ZN11QFontEngine16alphaMapForGlyphEj @ 704 NONAME
 	_ZN11QFontEngine16alphaMapForGlyphEjRK10QTransform @ 705 NONAME
-	_ZN11QFontEngine16expireGlyphCacheEv @ 706 NONAME
+	_ZN11QFontEngine16expireGlyphCacheEv @ 706 NONAME ABSENT
 	_ZN11QFontEngine16getUnscaledGlyphEjP12QPainterPathP15glyph_metrics_t @ 707 NONAME
 	_ZN11QFontEngine16loadKerningPairsE6QFixed @ 708 NONAME
 	_ZN11QFontEngine16tightBoundingBoxERK12QGlyphLayout @ 709 NONAME
@@ -7615,8 +7615,8 @@ EXPORTS
 	_ZNK11QFontDialog11currentFontEv @ 7614 NONAME
 	_ZNK11QFontDialog12selectedFontEv @ 7615 NONAME
 	_ZNK11QFontDialog7optionsEv @ 7616 NONAME
-	_ZNK11QFontEngine10glyphCacheEN21QFontEngineGlyphCache4TypeERK10QTransform @ 7617 NONAME
-	_ZNK11QFontEngine10glyphCacheEPvRK10QTransform @ 7618 NONAME
+	_ZNK11QFontEngine10glyphCacheEN21QFontEngineGlyphCache4TypeERK10QTransform @ 7617 NONAME ABSENT
+	_ZNK11QFontEngine10glyphCacheEPvRK10QTransform @ 7618 NONAME ABSENT
 	_ZNK11QFontEngine10glyphCountEv @ 7619 NONAME
 	_ZNK11QFontEngine10propertiesEv @ 7620 NONAME
 	_ZNK11QFontEngine12getSfntTableEj @ 7621 NONAME
@@ -11741,4 +11741,47 @@ EXPORTS
 	_ZN11QVectorPathD2Ev @ 11740 NONAME
 	_ZNK11QVectorPath12addCacheDataEP14QPaintEngineExPvPFvS1_S2_E @ 11741 NONAME
 	_ZNK20QGraphicsItemPrivate20discardUpdateRequestEbbb @ 11742 NONAME
+	_ZN11QEglContext10extensionsEv @ 11743 NONAME ABSENT
+	_ZN11QEglContext10getDisplayEP12QPaintDevice @ 11744 NONAME ABSENT
+	_ZN11QEglContext10waitClientEv @ 11745 NONAME ABSENT
+	_ZN11QEglContext10waitNativeEv @ 11746 NONAME ABSENT
+	_ZN11QEglContext11doneCurrentEv @ 11747 NONAME ABSENT
+	_ZN11QEglContext11errorStringEi @ 11748 NONAME ABSENT
+	_ZN11QEglContext11makeCurrentEi @ 11749 NONAME ABSENT
+	_ZN11QEglContext11openDisplayEP12QPaintDevice @ 11750 NONAME ABSENT
+	_ZN11QEglContext11swapBuffersEi @ 11751 NONAME ABSENT
+	_ZN11QEglContext12chooseConfigERK14QEglPropertiesN4QEgl16PixelFormatMatchE @ 11752 NONAME ABSENT
+	_ZN11QEglContext12hasExtensionEPKc @ 11753 NONAME ABSENT
+	_ZN11QEglContext13createContextEPS_PK14QEglProperties @ 11754 NONAME ABSENT
+	_ZN11QEglContext13createSurfaceEP12QPaintDevicePK14QEglProperties @ 11755 NONAME ABSENT
+	_ZN11QEglContext14currentContextEN4QEgl3APIE @ 11756 NONAME ABSENT
+	_ZN11QEglContext14defaultDisplayEP12QPaintDevice @ 11757 NONAME ABSENT
+	_ZN11QEglContext14destroySurfaceEi @ 11758 NONAME ABSENT
+	_ZN11QEglContext14dumpAllConfigsEv @ 11759 NONAME ABSENT
+	_ZN11QEglContext15lazyDoneCurrentEv @ 11760 NONAME ABSENT
+	_ZN11QEglContext17setCurrentContextEN4QEgl3APIEPS_ @ 11761 NONAME ABSENT
+	_ZN11QEglContext7destroyEv @ 11762 NONAME ABSENT
+	_ZN11QEglContextC1Ev @ 11763 NONAME ABSENT
+	_ZN11QEglContextC2Ev @ 11764 NONAME ABSENT
+	_ZN11QEglContextD1Ev @ 11765 NONAME ABSENT
+	_ZN11QEglContextD2Ev @ 11766 NONAME ABSENT
+	_ZN14QEglProperties11removeValueEi @ 11767 NONAME ABSENT
+	_ZN14QEglProperties14dumpAllConfigsEv @ 11768 NONAME ABSENT
+	_ZN14QEglProperties14setPixelFormatEN6QImage6FormatE @ 11769 NONAME ABSENT
+	_ZN14QEglProperties17setRenderableTypeEN4QEgl3APIE @ 11770 NONAME ABSENT
+	_ZN14QEglProperties19reduceConfigurationEv @ 11771 NONAME ABSENT
+	_ZN14QEglProperties20setPaintDeviceFormatEP12QPaintDevice @ 11772 NONAME ABSENT
+	_ZN14QEglProperties8setValueEii @ 11773 NONAME ABSENT
+	_ZN14QEglPropertiesC1Ei @ 11774 NONAME ABSENT
+	_ZN14QEglPropertiesC1Ev @ 11775 NONAME ABSENT
+	_ZN14QEglPropertiesC2Ei @ 11776 NONAME ABSENT
+	_ZN14QEglPropertiesC2Ev @ 11777 NONAME ABSENT
+	_ZNK11QEglContext12configAttribEiPi @ 11778 NONAME ABSENT
+	_ZNK11QEglContext16configPropertiesEi @ 11779 NONAME ABSENT
+	_ZNK11QEglContext7isValidEv @ 11780 NONAME ABSENT
+	_ZNK11QEglContext9isCurrentEv @ 11781 NONAME ABSENT
+	_ZNK14QEglProperties5valueEi @ 11782 NONAME ABSENT
+	_ZNK14QEglProperties8toStringEv @ 11783 NONAME ABSENT
+	_ZNK11QFontEngine10glyphCacheEPvN21QFontEngineGlyphCache4TypeERK10QTransform @ 11784 NONAME
+	_ZNK20QGraphicsItemPrivate21effectiveBoundingRectERK6QRectF @ 11785 NONAME
 
diff --git a/src/s60installs/eabi/QtOpenVGu.def b/src/s60installs/eabi/QtOpenVGu.def
index 8458983..7526632 100644
--- a/src/s60installs/eabi/QtOpenVGu.def
+++ b/src/s60installs/eabi/QtOpenVGu.def
@@ -1,8 +1,8 @@
 EXPORTS
 	_Z16qPixmapToVGImageRK7QPixmap @ 1 NONAME
-	_Z20qt_vg_create_contextP12QPaintDevice @ 2 NONAME
+	_Z20qt_vg_create_contextP12QPaintDevice @ 2 NONAME ABSENT
 	_Z20qt_vg_shared_surfacev @ 3 NONAME
-	_Z21qt_vg_destroy_contextP11QEglContext @ 4 NONAME
+	_Z21qt_vg_destroy_contextP11QEglContext @ 4 NONAME ABSENT
 	_Z24qt_vg_image_to_vg_formatN6QImage6FormatE @ 5 NONAME
 	_Z25qt_vg_config_to_vg_formatP11QEglContext @ 6 NONAME
 	_Z25qt_vg_create_paint_enginev @ 7 NONAME
@@ -169,4 +169,8 @@ EXPORTS
 	_ZThn8_NK16QVGWindowSurface6metricEN12QPaintDevice17PaintDeviceMetricE @ 168 NONAME
 	_ZN14QVGPaintEngine10fillRegionERK7QRegionRK6QColorRK5QSize @ 169 NONAME
 	_ZN20QVGCompositionHelper10blitWindowEmRK5QSizeRK5QRectRK6QPointi @ 170 NONAME
+	_Z20qt_vg_create_contextP12QPaintDevicei @ 171 NONAME
+	_Z21qt_vg_destroy_contextP11QEglContexti @ 172 NONAME
+	_ZN13QVGPixmapData22destroyImageAndContextEv @ 173 NONAME
+	_ZN13QVGPixmapData9hibernateEv @ 174 NONAME
 
diff --git a/src/sql/drivers/odbc/qsql_odbc.cpp b/src/sql/drivers/odbc/qsql_odbc.cpp
index e686873..fdf0c2c 100644
--- a/src/sql/drivers/odbc/qsql_odbc.cpp
+++ b/src/sql/drivers/odbc/qsql_odbc.cpp
@@ -172,28 +172,39 @@ static QString qWarnODBCHandle(int handleType, SQLHANDLE handle, int *nativeCode
     SQLSMALLINT msgLen = 0;
     SQLRETURN r = SQL_NO_DATA;
     SQLTCHAR state_[SQL_SQLSTATE_SIZE+1];
-    SQLTCHAR description_[SQL_MAX_MESSAGE_LENGTH];
+    QVarLengthArray<SQLTCHAR> description_(SQL_MAX_MESSAGE_LENGTH);
     QString result;
     int i = 1;
 
     description_[0] = 0;
+    r = SQLGetDiagRec(handleType,
+                      handle,
+                      i,
+                      state_,
+                      &nativeCode_,
+                      0,
+                      NULL,
+                      &msgLen);
+    if(r == SQL_NO_DATA)
+        return QString();
+    description_.resize(msgLen+1);
     do {
         r = SQLGetDiagRec(handleType,
                             handle,
                             i,
-                            (SQLTCHAR*)state_,
+                            state_,
                             &nativeCode_,
-                            (SQLTCHAR*)description_,
-                            SQL_MAX_MESSAGE_LENGTH, /* in bytes, not in characters */
+                            description_.data(),
+                            description_.size(),
                             &msgLen);
         if (r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO) {
             if (nativeCode)
                 *nativeCode = nativeCode_;
             QString tmpstore;
 #ifdef UNICODE
-            tmpstore = QString((const QChar*)description_, msgLen);
+            tmpstore = QString((const QChar*)description_.data(), msgLen);
 #else
-            tmpstore = QString::fromLocal8Bit((const char*)description_, msgLen);
+            tmpstore = QString::fromLocal8Bit((const char*)description_.data(), msgLen);
 #endif
             if(result != tmpstore) {
                 if(!result.isEmpty())