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

49 files changed, 978 insertions, 271 deletions

diff --git a/src/gui/embedded/qkbdlinuxinput_qws.cpp b/src/gui/embedded/qkbdlinuxinput_qws.cpp
index 6c91a08..f53c444 100644
--- a/src/gui/embedded/qkbdlinuxinput_qws.cpp
+++ b/src/gui/embedded/qkbdlinuxinput_qws.cpp
@@ -138,7 +138,7 @@ QWSLinuxInputKbPrivate::QWSLinuxInputKbPrivate(QWSLinuxInputKeyboardHandler *h,
             // record the original mode so we can restore it again in the destructor.
             ::ioctl(m_tty_fd, KDGKBMODE, &m_orig_kbmode);
 
-            // setting this tranlation mode is even needed in INPUT mode to prevent
+            // setting this translation mode is even needed in INPUT mode to prevent
             // the shell from also interpreting codes, if the process has a tty
             // attached: e.g. Ctrl+C wouldn't copy, but kill the application.
             ::ioctl(m_tty_fd, KDSKBMODE, K_MEDIUMRAW);
diff --git a/src/gui/embedded/qkbdqnx_qws.cpp b/src/gui/embedded/qkbdqnx_qws.cpp
index fbc683e..72d1cb5 100644
--- a/src/gui/embedded/qkbdqnx_qws.cpp
+++ b/src/gui/embedded/qkbdqnx_qws.cpp
@@ -150,7 +150,7 @@ void QWSQnxKeyboardHandler::socketActivated()
 
     // figure out whether it's a press
     bool isPress = packet.data.key_cap & KEY_DOWN;
-    // figure out wheter the key is still pressed and the key event is repeated
+    // figure out whether the key is still pressed and the key event is repeated
     bool isRepeat = packet.data.key_cap & KEY_REPEAT;
 
     Qt::Key key = Qt::Key_unknown;
diff --git a/src/gui/graphicsview/qgraphicsgridlayout.cpp b/src/gui/graphicsview/qgraphicsgridlayout.cpp
index 062b5ac..3fc7f10 100644
--- a/src/gui/graphicsview/qgraphicsgridlayout.cpp
+++ b/src/gui/graphicsview/qgraphicsgridlayout.cpp
@@ -641,7 +641,8 @@ QSizeF QGraphicsGridLayout::sizeHint(Qt::SizeHint which, const QSizeF &constrain
     Q_D(const QGraphicsGridLayout);
     qreal left, top, right, bottom;
     getContentsMargins(&left, &top, &right, &bottom);
-    return d->engine.sizeHint(d->styleInfo(), which , constraint) + QSizeF(left + right, top + bottom);
+    const QSizeF extraMargins(left + right, top + bottom);
+    return d->engine.sizeHint(d->styleInfo(), which , constraint - extraMargins) + extraMargins;
 }
 
 
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 1626d83..0b3b164 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -3259,8 +3259,12 @@ void QGraphicsItemPrivate::setFocusHelper(Qt::FocusReason focusReason, bool clim
     QGraphicsItem *p = parent;
     while (p) {
         if (p->flags() & QGraphicsItem::ItemIsFocusScope) {
+            QGraphicsItem *oldFocusScopeItem = p->d_ptr->focusScopeItem;
             p->d_ptr->focusScopeItem = q_ptr;
             if (!p->focusItem() && !focusFromShow) {
+                if (oldFocusScopeItem)
+                    oldFocusScopeItem->d_ptr->focusScopeItemChange(false);
+                focusScopeItemChange(true);
                 // If you call setFocus on a child of a focus scope that
                 // doesn't currently have a focus item, then stop.
                 return;
@@ -5595,6 +5599,7 @@ void QGraphicsItemPrivate::subFocusItemChange()
 */
 void QGraphicsItemPrivate::focusScopeItemChange(bool isSubFocusItem)
 {
+    Q_UNUSED(isSubFocusItem);
 }
 
 /*!
@@ -7753,6 +7758,21 @@ void QGraphicsItemPrivate::resetHeight()
 }
 
 /*!
+  \property QGraphicsObject::children
+  \internal
+*/
+
+/*!
+  \property QGraphicsObject::width
+  \internal
+*/
+
+/*!
+  \property QGraphicsObject::height
+  \internal
+*/
+
+/*!
   \property QGraphicsObject::parent
   \brief the parent of the item
 
@@ -7965,6 +7985,24 @@ void QGraphicsItemPrivate::resetHeight()
 */
 
 /*!
+    \property QGraphicsObject::children
+    \since 4.7
+    \internal
+*/
+
+/*!
+    \property QGraphicsObject::width
+    \since 4.7
+    \internal
+*/
+
+/*!
+    \property QGraphicsObject::height
+    \since 4.7
+    \internal
+*/
+
+/*!
     \class QAbstractGraphicsShapeItem
     \brief The QAbstractGraphicsShapeItem class provides a common base for
     all path items.
diff --git a/src/gui/graphicsview/qgraphicslayoutitem.cpp b/src/gui/graphicsview/qgraphicslayoutitem.cpp
index 5a7f1af..3707591 100644
--- a/src/gui/graphicsview/qgraphicslayoutitem.cpp
+++ b/src/gui/graphicsview/qgraphicslayoutitem.cpp
@@ -48,6 +48,7 @@
 #include "qgraphicslayoutitem.h"
 #include "qgraphicslayoutitem_p.h"
 #include "qwidget.h"
+#include "qgraphicswidget.h"
 
 #include <QtDebug>
 
@@ -139,9 +140,11 @@ QSizeF *QGraphicsLayoutItemPrivate::effectiveSizeHints(const QSizeF &constraint)
     if (!sizeHintCacheDirty && cachedConstraint == constraint)
         return cachedSizeHints;
 
+    const bool hasConstraint = constraint.width() >= 0 || constraint.height() >= 0;
+
     for (int i = 0; i < Qt::NSizeHints; ++i) {
         cachedSizeHints[i] = constraint;
-        if (userSizeHints)
+        if (userSizeHints && !hasConstraint)
             combineSize(cachedSizeHints[i], userSizeHints[i]);
     }
 
@@ -259,6 +262,52 @@ void QGraphicsLayoutItemPrivate::setSizeComponent(
     q->updateGeometry();
 }
 
+
+bool QGraphicsLayoutItemPrivate::hasHeightForWidth() const
+{
+    Q_Q(const QGraphicsLayoutItem);
+    if (isLayout) {
+        const QGraphicsLayout *l = static_cast<const QGraphicsLayout *>(q);
+        for (int i = l->count() - 1; i >= 0; --i) {
+            if (QGraphicsLayoutItemPrivate::get(l->itemAt(i))->hasHeightForWidth())
+                return true;
+        }
+    } else if (QGraphicsItem *item = q->graphicsItem()) {
+        if (item->isWidget()) {
+            QGraphicsWidget *w = static_cast<QGraphicsWidget *>(item);
+            if (w->layout()) {
+                return QGraphicsLayoutItemPrivate::get(w->layout())->hasHeightForWidth();
+            }
+        }
+    }
+    return q->sizePolicy().hasHeightForWidth();
+}
+
+bool QGraphicsLayoutItemPrivate::hasWidthForHeight() const
+{
+    // enable this code when we add QSizePolicy::hasWidthForHeight() (For 4.8)
+#if 1
+    return false;
+#else
+    Q_Q(const QGraphicsLayoutItem);
+    if (isLayout) {
+        const QGraphicsLayout *l = static_cast<const QGraphicsLayout *>(q);
+        for (int i = l->count() - 1; i >= 0; --i) {
+            if (QGraphicsLayoutItemPrivate::get(l->itemAt(i))->hasWidthForHeight())
+                return true;
+        }
+    } else if (QGraphicsItem *item = q->graphicsItem()) {
+        if (item->isWidget()) {
+            QGraphicsWidget *w = static_cast<QGraphicsWidget *>(item);
+            if (w->layout()) {
+                return QGraphicsLayoutItemPrivate::get(w->layout())->hasWidthForHeight();
+            }
+        }
+    }
+    return q->sizePolicy().hasWidthForHeight();
+#endif
+}
+
 /*!
     \class QGraphicsLayoutItem
     \brief The QGraphicsLayoutItem class can be inherited to allow your custom
diff --git a/src/gui/graphicsview/qgraphicslayoutitem_p.h b/src/gui/graphicsview/qgraphicslayoutitem_p.h
index 15cc7a5..b752e03 100644
--- a/src/gui/graphicsview/qgraphicslayoutitem_p.h
+++ b/src/gui/graphicsview/qgraphicslayoutitem_p.h
@@ -65,6 +65,9 @@ class Q_AUTOTEST_EXPORT QGraphicsLayoutItemPrivate
 public:
     virtual ~QGraphicsLayoutItemPrivate();
     QGraphicsLayoutItemPrivate(QGraphicsLayoutItem *parent, bool isLayout);
+    static QGraphicsLayoutItemPrivate *get(QGraphicsLayoutItem *q) { return q->d_func();}
+    static const QGraphicsLayoutItemPrivate *get(const QGraphicsLayoutItem *q) { return q->d_func();}
+
     void init();
     QSizeF *effectiveSizeHints(const QSizeF &constraint) const;
     QGraphicsItem *parentItem() const;
@@ -73,6 +76,9 @@ public:
     enum SizeComponent { Width, Height };
     void setSizeComponent(Qt::SizeHint which, SizeComponent component, qreal value);
 
+    bool hasHeightForWidth() const;
+    bool hasWidthForHeight() const;
+
     QSizePolicy sizePolicy;
     QGraphicsLayoutItem *parent;
 
diff --git a/src/gui/graphicsview/qgraphicslinearlayout.cpp b/src/gui/graphicsview/qgraphicslinearlayout.cpp
index 37408ef..1588364 100644
--- a/src/gui/graphicsview/qgraphicslinearlayout.cpp
+++ b/src/gui/graphicsview/qgraphicslinearlayout.cpp
@@ -528,7 +528,8 @@ QSizeF QGraphicsLinearLayout::sizeHint(Qt::SizeHint which, const QSizeF &constra
     Q_D(const QGraphicsLinearLayout);
     qreal left, top, right, bottom;
     getContentsMargins(&left, &top, &right, &bottom);
-    return d->engine.sizeHint(d->styleInfo(), which , constraint) + QSizeF(left + right, top + bottom);
+    const QSizeF extraMargins(left + right, top + bottom);
+    return d->engine.sizeHint(d->styleInfo(), which , constraint - extraMargins) + extraMargins;
 }
 
 /*!
diff --git a/src/gui/graphicsview/qgraphicstransform.cpp b/src/gui/graphicsview/qgraphicstransform.cpp
index 986bee6..bd3f2ef 100644
--- a/src/gui/graphicsview/qgraphicstransform.cpp
+++ b/src/gui/graphicsview/qgraphicstransform.cpp
@@ -345,6 +345,24 @@ void QGraphicsScale::applyTo(QMatrix4x4 *matrix) const
 */
 
 /*!
+    \fn QGraphicsScale::xScaleChanged()
+
+    QGraphicsScale emits this signal when its xScale changes.
+*/
+
+/*!
+    \fn QGraphicsScale::yScaleChanged()
+
+    QGraphicsScale emits this signal when its yScale changes.
+*/
+
+/*!
+    \fn QGraphicsScale::zScaleChanged()
+
+    QGraphicsScale emits this signal when its zScale changes.
+*/    
+
+/*!
     \fn QGraphicsScale::scaleChanged()
 
     This signal is emitted whenever the xScale, yScale, or zScale
@@ -565,6 +583,27 @@ void QGraphicsRotation::applyTo(QMatrix4x4 *matrix) const
     \sa QGraphicsRotation::axis
 */
 
+/*!
+    \fn QGraphicsScale::xScaleChanged()
+    \since 4.7
+
+    This signal is emitted whenever the \l xScale property changes.
+*/
+
+/*!
+    \fn QGraphicsScale::yScaleChanged()
+    \since 4.7
+
+    This signal is emitted whenever the \l yScale property changes.
+*/
+
+/*!
+    \fn QGraphicsScale::zScaleChanged()
+    \since 4.7
+
+    This signal is emitted whenever the \l zScale property changes.
+*/
+
 #include "moc_qgraphicstransform.cpp"
 
 QT_END_NAMESPACE
diff --git a/src/gui/graphicsview/qgridlayoutengine.cpp b/src/gui/graphicsview/qgridlayoutengine.cpp
index a084647..f3b2026 100644
--- a/src/gui/graphicsview/qgridlayoutengine.cpp
+++ b/src/gui/graphicsview/qgridlayoutengine.cpp
@@ -250,6 +250,7 @@ void QGridLayoutRowData::calculateGeometries(int start, int end, qreal targetSiz
 
         sumAvailable = targetSize - totalBox.q_preferredSize;
         if (sumAvailable > 0.0) {
+            qreal sumCurrentAvailable = sumAvailable;
             bool somethingHasAMaximumSize = false;
 
             qreal sumPreferredSizes = 0.0;
@@ -308,12 +309,12 @@ void QGridLayoutRowData::calculateGeometries(int start, int end, qreal targetSiz
                         qreal ultimateFactor = (stretch * ultimateSumPreferredSizes
                                                 / sumStretches)
                                                - (box.q_preferredSize);
-                        qreal transitionalFactor = sumAvailable
+                        qreal transitionalFactor = sumCurrentAvailable
                                                    * (ultimatePreferredSize - box.q_preferredSize)
                                                    / (ultimateSumPreferredSizes
                                                       - sumPreferredSizes);
 
-                        qreal alpha = qMin(sumAvailable,
+                        qreal alpha = qMin(sumCurrentAvailable,
                                            ultimateSumPreferredSizes - sumPreferredSizes);
                         qreal beta = ultimateSumPreferredSizes - sumPreferredSizes;
 
@@ -321,7 +322,7 @@ void QGridLayoutRowData::calculateGeometries(int start, int end, qreal targetSiz
                                       + ((beta - alpha) * transitionalFactor)) / beta;
                     }
                     sumFactors += factors[i];
-                    if (desired < sumAvailable)
+                    if (desired < sumCurrentAvailable)
                         somethingHasAMaximumSize = true;
 
                     newSizes[i] = -1.0;
@@ -337,12 +338,12 @@ void QGridLayoutRowData::calculateGeometries(int start, int end, qreal targetSiz
                         continue;
 
                     const QGridLayoutBox &box = boxes.at(start + i);
-                    qreal avail = sumAvailable * factors[i] / sumFactors;
+                    qreal avail = sumCurrentAvailable * factors[i] / sumFactors;
                     if (sizes[i] + avail >= box.q_maximumSize) {
                         newSizes[i] = box.q_maximumSize;
-                        sumAvailable -= box.q_maximumSize - sizes[i];
+                        sumCurrentAvailable -= box.q_maximumSize - sizes[i];
                         sumFactors -= factors[i];
-                        keepGoing = (sumAvailable > 0.0);
+                        keepGoing = (sumCurrentAvailable > 0.0);
                         if (!keepGoing)
                             break;
                     }
@@ -352,7 +353,7 @@ void QGridLayoutRowData::calculateGeometries(int start, int end, qreal targetSiz
             for (int i = 0; i < n; ++i) {
                 if (newSizes[i] < 0.0) {
                     qreal delta = (sumFactors == 0.0) ? 0.0
-                                                      : sumAvailable * factors[i] / sumFactors;
+                                                      : sumCurrentAvailable * factors[i] / sumFactors;
                     newSizes[i] = sizes[i] + delta;
                 }
             }
@@ -545,6 +546,24 @@ QSizePolicy::Policy QGridLayoutItem::sizePolicy(Qt::Orientation orientation) con
                                            : sizePolicy.verticalPolicy();
 }
 
+/*
+  returns true if the size policy returns true for either hasHeightForWidth()
+  or hasWidthForHeight()
+ */
+bool QGridLayoutItem::hasDynamicConstraint() const
+{
+    return QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth()
+        || QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight();
+}
+
+Qt::Orientation QGridLayoutItem::dynamicConstraintOrientation() const
+{
+    if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth())
+        return Qt::Vertical;
+    else //if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight())
+        return Qt::Horizontal;
+}
+
 QSizePolicy::ControlTypes QGridLayoutItem::controlTypes(LayoutSide /* side */) const
 {
     return q_layoutItem->sizePolicy().controlType();
@@ -613,7 +632,14 @@ QRectF QGridLayoutItem::geometryWithin(qreal x, qreal y, qreal width, qreal heig
         qreal cellWidth = width;
         qreal cellHeight = height;
 
-        QSizeF size = effectiveMaxSize().boundedTo(QSizeF(cellWidth, cellHeight));
+        QSize constraint;
+        if (hasDynamicConstraint()) {
+            if (dynamicConstraintOrientation() == Qt::Vertical)
+                constraint.setWidth(cellWidth);
+            else
+                constraint.setHeight(cellHeight);
+        }
+        QSizeF size = effectiveMaxSize(constraint).boundedTo(QSizeF(cellWidth, cellHeight));
         width = size.width();
         height = size.height();
 
@@ -675,13 +701,13 @@ void QGridLayoutItem::insertOrRemoveRows(int row, int delta, Qt::Orientation ori
     Note that effectiveSizeHint does not take sizePolicy into consideration,
     (since it only evaluates the hints, as the name implies)
 */
-QSizeF QGridLayoutItem::effectiveMaxSize() const
+QSizeF QGridLayoutItem::effectiveMaxSize(const QSizeF &constraint) const
 {
-    QSizeF size;
+    QSizeF size = constraint;
     bool vGrow = (sizePolicy(Qt::Vertical) & QSizePolicy::GrowFlag) == QSizePolicy::GrowFlag;
     bool hGrow = (sizePolicy(Qt::Horizontal) & QSizePolicy::GrowFlag) == QSizePolicy::GrowFlag;
     if (!vGrow || !hGrow) {
-        QSizeF pref = layoutItem()->effectiveSizeHint(Qt::PreferredSize);
+        QSizeF pref = layoutItem()->effectiveSizeHint(Qt::PreferredSize, constraint);
         if (!vGrow)
             size.setHeight(pref.height());
         if (!hGrow)
@@ -689,7 +715,7 @@ QSizeF QGridLayoutItem::effectiveMaxSize() const
     }
 
     if (!size.isValid()) {
-        QSizeF maxSize = layoutItem()->effectiveSizeHint(Qt::MaximumSize);
+        QSizeF maxSize = layoutItem()->effectiveSizeHint(Qt::MaximumSize, constraint);
         if (size.width() == -1)
             size.setWidth(maxSize.width());
         if (size.height() == -1)
@@ -1010,6 +1036,7 @@ void QGridLayoutEngine::invalidate()
     q_cachedEffectiveLastRows[Ver] = -1;
     q_cachedDataForStyleInfo.invalidate();
     q_cachedSize = QSizeF();
+    q_cachedConstraintOrientation = UnknownConstraint;
 }
 
 static void visualRect(QRectF *geom, Qt::LayoutDirection dir, const QRectF &contentsRect)
@@ -1074,10 +1101,13 @@ QRectF QGridLayoutEngine::cellRect(const QLayoutStyleInfo &styleInfo,
 }
 
 QSizeF QGridLayoutEngine::sizeHint(const QLayoutStyleInfo &styleInfo, Qt::SizeHint which,
-                                   const QSizeF & /* constraint */) const
+                                   const QSizeF &constraint) const
 {
     ensureColumnAndRowData(styleInfo);
 
+    if (hasDynamicConstraint())
+        return dynamicallyConstrainedSizeHint(which, constraint);
+
     switch (which) {
     case Qt::MinimumSize:
         return QSizeF(q_totalBoxes[Hor].q_minimumSize, q_totalBoxes[Ver].q_minimumSize);
@@ -1375,7 +1405,11 @@ void QGridLayoutEngine::fillRowData(QGridLayoutRowData *rowData, const QLayoutSt
                         box = &multiCell.q_box;
                         multiCell.q_stretch = itemStretch;
                     }
-                    box->combine(item->box(orientation));
+                    // Items with constraints are not included in the orientation that
+                    // they are constrained (since it depends on the hfw/constraint function).
+                    // They must be combined at a later stage.
+                    if (!item->hasDynamicConstraint() || orientation != item->dynamicConstraintOrientation())
+                        box->combine(item->box(orientation));
 
                     if (effectiveRowSpan == 1) {
                         QSizePolicy::ControlTypes controls = item->controlTypes(top);
@@ -1532,6 +1566,138 @@ void QGridLayoutEngine::ensureColumnAndRowData(const QLayoutStyleInfo &styleInfo
     q_cachedDataForStyleInfo = styleInfo;
 }
 
+QSizeF QGridLayoutEngine::dynamicallyConstrainedSizeHint(Qt::SizeHint which,
+                                                         const QSizeF &constraint) const
+{
+    Q_ASSERT(hasDynamicConstraint());
+    if (constraint.width() < 0 && constraint.height() < 0) {
+        // Process the hfw / wfh items that we did not process in fillRowData()
+        const Qt::Orientation constraintOrient = constraintOrientation();
+
+        QGridLayoutRowData rowData = constraintOrient == Qt::Vertical ? q_rowData : q_columnData;
+        for (int i = q_items.count() - 1; i >= 0; --i) {
+            QGridLayoutItem *item = q_items.at(i);
+            if (item->hasDynamicConstraint()) {
+                QGridLayoutBox box = item->box(constraintOrient);
+                QGridLayoutBox &rowBox = rowData.boxes[item->firstRow(constraintOrient)];
+                rowBox.combine(box);
+            }
+        }
+
+        QGridLayoutBox totalBoxes[2];
+        if (constraintOrient == Qt::Vertical) {
+            totalBoxes[Hor] = q_columnData.totalBox(0, columnCount());
+            totalBoxes[Ver] = rowData.totalBox(0, rowCount());
+        } else {
+            totalBoxes[Hor] = rowData.totalBox(0, columnCount());
+            totalBoxes[Ver] = q_rowData.totalBox(0, rowCount());
+        }
+        return QSizeF(totalBoxes[Hor].q_sizes(which), totalBoxes[Ver].q_sizes(which));
+    }
+
+
+    Q_ASSERT(constraint.width() >= 0 || constraint.height() >= 0);
+    q_xx.resize(columnCount());
+    q_yy.resize(rowCount());
+    q_widths.resize(columnCount());
+    q_heights.resize(rowCount());
+    q_descents.resize(rowCount());
+
+
+    const Qt::Orientation orientation = constraintOrientation();
+    QGridLayoutRowData *colData;
+    QGridLayoutRowData constrainedRowData;
+    QGridLayoutBox *totalBox;
+    qreal *sizes;
+    qreal *pos;
+    qreal *descents;
+    qreal targetSize;
+    qreal cCount;
+    qreal rCount;
+
+    if (orientation == Qt::Vertical) {
+        // height for width
+        colData = &q_columnData;
+        totalBox = &q_totalBoxes[Hor];
+        sizes = q_widths.data();
+        pos = q_xx.data();
+        descents = 0;
+        targetSize = constraint.width();
+        cCount = columnCount();
+        rCount = rowCount();
+        constrainedRowData = q_rowData;
+    } else {
+        // width for height
+        colData = &q_rowData;
+        totalBox = &q_totalBoxes[Ver];
+        sizes = q_heights.data();
+        pos = q_yy.data();
+        descents = q_descents.data();
+        targetSize = constraint.height();
+        cCount = rowCount();
+        rCount = columnCount();
+        constrainedRowData = q_columnData;
+    }
+    colData->calculateGeometries(0, cCount, targetSize, pos, sizes, descents, *totalBox);
+    for (int i = q_items.count() - 1; i >= 0; --i) {
+        QGridLayoutItem *item = q_items.at(i);
+
+        if (item->hasDynamicConstraint()) {
+            const qreal size = sizes[item->firstColumn(orientation)];
+            QGridLayoutBox box = item->box(orientation, size);
+            QGridLayoutBox &rowBox = constrainedRowData.boxes[item->firstRow(orientation)];
+            rowBox.combine(box);
+        }
+    }
+    const qreal newSize = constrainedRowData.totalBox(0, rCount).q_sizes(which);
+
+    return (orientation == Qt::Vertical) ? QSizeF(targetSize, newSize) : QSizeF(newSize, targetSize);
+}
+
+
+/**
+   returns false if the layout has contradicting constraints (i.e. some items with a horizontal
+   constraint and other items with a vertical constraint)
+ */
+bool QGridLayoutEngine::ensureDynamicConstraint() const
+{
+    if (q_cachedConstraintOrientation == UnknownConstraint) {
+        for (int i = q_items.count() - 1; i >= 0; --i) {
+            QGridLayoutItem *item = q_items.at(i);
+            if (item->hasDynamicConstraint()) {
+                Qt::Orientation itemConstraintOrientation = item->dynamicConstraintOrientation();
+                if (q_cachedConstraintOrientation == UnknownConstraint) {
+                    q_cachedConstraintOrientation = itemConstraintOrientation;
+                } else if (q_cachedConstraintOrientation != itemConstraintOrientation) {
+                    q_cachedConstraintOrientation = UnfeasibleConstraint;
+                    qWarning("QGridLayoutEngine: Unfeasible, cannot mix horizontal and"
+                             " vertical constraint in the same layout");
+                    return false;
+                }
+            }
+        }
+        if (q_cachedConstraintOrientation == UnknownConstraint)
+            q_cachedConstraintOrientation = NoConstraint;
+    }
+    return true;
+}
+
+bool QGridLayoutEngine::hasDynamicConstraint() const
+{
+    if (!ensureDynamicConstraint())
+        return false;
+    return q_cachedConstraintOrientation != NoConstraint;
+}
+
+/*
+ * return value is only valid if hasConstraint() returns true
+ */
+Qt::Orientation QGridLayoutEngine::constraintOrientation() const
+{
+    (void)ensureDynamicConstraint();
+    return (Qt::Orientation)q_cachedConstraintOrientation;
+}
+
 void QGridLayoutEngine::ensureGeometries(const QLayoutStyleInfo &styleInfo,
                                          const QSizeF &size) const
 {
@@ -1544,10 +1710,74 @@ void QGridLayoutEngine::ensureGeometries(const QLayoutStyleInfo &styleInfo,
     q_widths.resize(columnCount());
     q_heights.resize(rowCount());
     q_descents.resize(rowCount());
-    q_columnData.calculateGeometries(0, columnCount(), size.width(), q_xx.data(), q_widths.data(),
-                                     0, q_totalBoxes[Hor]);
-    q_rowData.calculateGeometries(0, rowCount(), size.height(), q_yy.data(), q_heights.data(),
-                                  q_descents.data(), q_totalBoxes[Ver]);
+
+
+    Qt::Orientation orientation = Qt::Vertical;
+    if (hasDynamicConstraint())
+        orientation = constraintOrientation();
+
+    /*
+      In order to do hfw we need to first distribute the columns, then the rows.
+      In order to do wfh we need to first distribute the rows, then the columns.
+
+      If there is no constraint, the order of distributing the rows or columns first is irrelevant.
+      We choose horizontal just to keep the same behaviour as before (however, there shouldn't
+      be any behaviour difference).
+ */
+
+    QGridLayoutRowData *colData;
+    QGridLayoutRowData rowData;
+    qreal *widths;
+    qreal *heights;
+    qreal *xx;
+    qreal *yy;
+    qreal *xdescents = 0;
+    qreal *ydescents = 0;
+    qreal cCount;
+    qreal rCount;
+    QSizeF oSize = size;
+    if (orientation == Qt::Vertical) {
+        // height for width
+        colData = &q_columnData;
+        rowData = q_rowData;
+        widths = q_widths.data();
+        heights = q_heights.data();
+        xx = q_xx.data();
+        yy = q_yy.data();
+        cCount = columnCount();
+        rCount = rowCount();
+        ydescents = q_descents.data();
+    } else {
+        // width for height
+        colData = &q_rowData;
+        rowData = q_columnData;
+        widths = q_heights.data();
+        heights = q_widths.data();
+        xx = q_yy.data();
+        yy = q_xx.data();
+        cCount = rowCount();
+        rCount = columnCount();
+        xdescents = q_descents.data();
+        oSize.transpose();
+    }
+
+    colData->calculateGeometries(0, cCount, oSize.width(), xx, widths,
+                                 xdescents, q_totalBoxes[orientation == Qt::Horizontal]);
+    for (int i = q_items.count() - 1; i >= 0; --i) {
+        QGridLayoutItem *item = q_items.at(i);
+        const int col = item->firstColumn(orientation);
+        const int row = item->firstRow(orientation);
+        if (item->hasDynamicConstraint()) {
+            const qreal sz = widths[col];
+            QGridLayoutBox box = item->box(orientation, sz);
+            rowData.boxes[row].combine(box);
+        }
+    }
+
+    QGridLayoutBox &totalBox = q_totalBoxes[orientation == Qt::Vertical];
+    totalBox = rowData.totalBox(0, rCount);
+    rowData.calculateGeometries(0, rCount, oSize.height(), yy, heights,
+                                 ydescents, totalBox);
 
     q_cachedSize = size;
 }
diff --git a/src/gui/graphicsview/qgridlayoutengine_p.h b/src/gui/graphicsview/qgridlayoutengine_p.h
index 9ac9a8e..580af7e 100644
--- a/src/gui/graphicsview/qgridlayoutengine_p.h
+++ b/src/gui/graphicsview/qgridlayoutengine_p.h
@@ -91,6 +91,14 @@ enum LayoutSide {
     Bottom
 };
 
+enum {
+    NoConstraint,
+    HorizontalConstraint,
+    VerticalConstraint,
+    UnknownConstraint,      // need to update cache
+    UnfeasibleConstraint    // not feasible, it be has some items with Vertical and others with Horizontal constraints
+};
+
 template <typename T>
 class QLayoutParameter
 {
@@ -270,6 +278,10 @@ public:
     inline void setAlignment(Qt::Alignment alignment) { q_alignment = alignment; }
 
     QSizePolicy::Policy sizePolicy(Qt::Orientation orientation) const;
+
+    bool hasDynamicConstraint() const;
+    Qt::Orientation dynamicConstraintOrientation() const;
+
     QSizePolicy::ControlTypes controlTypes(LayoutSide side) const;
     QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
     QGridLayoutBox box(Qt::Orientation orientation, qreal constraint = -1.0) const;
@@ -280,7 +292,7 @@ public:
     void setGeometry(const QRectF &rect);
     void transpose();
     void insertOrRemoveRows(int row, int delta, Qt::Orientation orientation = Qt::Vertical);
-    QSizeF effectiveMaxSize() const;
+    QSizeF effectiveMaxSize(const QSizeF &constraint) const;
 
 #ifdef QT_DEBUG
     void dump(int indent = 0) const;
@@ -372,6 +384,14 @@ public:
                     int column, int rowSpan, int columnSpan) const;
     QSizeF sizeHint(const QLayoutStyleInfo &styleInfo, Qt::SizeHint which,
                     const QSizeF &constraint) const;
+
+    // heightForWidth / widthForHeight support
+    QSizeF dynamicallyConstrainedSizeHint(Qt::SizeHint which, const QSizeF &constraint) const;
+    bool ensureDynamicConstraint() const;
+    bool hasDynamicConstraint() const;
+    Qt::Orientation constraintOrientation() const;
+
+
     QSizePolicy::ControlTypes controlTypes(LayoutSide side) const;
     void transpose();
     void setVisualDirection(Qt::LayoutDirection direction);
@@ -405,6 +425,7 @@ private:
     // Lazily computed from the above user input
     mutable int q_cachedEffectiveFirstRows[NOrientations];
     mutable int q_cachedEffectiveLastRows[NOrientations];
+    mutable quint8 q_cachedConstraintOrientation : 2;
 
     // Layout item input
     mutable QLayoutStyleInfo q_cachedDataForStyleInfo;
diff --git a/src/gui/gui.pro b/src/gui/gui.pro
index 28440cc..3943e26 100644
--- a/src/gui/gui.pro
+++ b/src/gui/gui.pro
@@ -77,6 +77,25 @@ symbian {
     DEPLOYMENT = partial_upgrade $$DEPLOYMENT
 }
 
+neon:*-g++* {
+    DEFINES += QT_HAVE_NEON
+    QMAKE_CXXFLAGS *= -mfpu=neon
+    HEADERS += $$NEON_HEADERS
+    SOURCES += $$NEON_SOURCES
+
+    DRAWHELPER_NEON_ASM_FILES = $$NEON_ASM
+
+    neon_compiler.commands = $$QMAKE_CXX -c
+    neon_compiler.commands += $(CXXFLAGS) $(INCPATH) ${QMAKE_FILE_IN} -o ${QMAKE_FILE_OUT}
+    neon_compiler.dependency_type = TYPE_C
+    neon_compiler.output = ${QMAKE_VAR_OBJECTS_DIR}${QMAKE_FILE_BASE}$${first(QMAKE_EXT_OBJ)}
+    neon_compiler.input = DRAWHELPER_NEON_ASM_FILES
+    neon_compiler.variable_out = OBJECTS
+    neon_compiler.name = compiling[neon] ${QMAKE_FILE_IN}
+    silent:neon_compiler.commands = @echo compiling[neon] ${QMAKE_FILE_IN} && $$neon_compiler.commands
+    QMAKE_EXTRA_COMPILERS += neon_compiler
+}
+
 contains(QMAKE_MAC_XARCH, no) {
     DEFINES += QT_NO_MAC_XARCH
 } else {
diff --git a/src/gui/image/image.pri b/src/gui/image/image.pri
index b20a04f..f89706c 100644
--- a/src/gui/image/image.pri
+++ b/src/gui/image/image.pri
@@ -94,5 +94,6 @@ contains(QT_CONFIG, tiff):include($$PWD/qtiffhandler.pri)
 contains(QT_CONFIG, gif):include($$PWD/qgifhandler.pri)
 
 # SIMD
+NEON_SOURCES += image/qimage_neon.cpp
 SSE2_SOURCES += image/qimage_sse2.cpp
 SSSE3_SOURCES += image/qimage_ssse3.cpp
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index cb834c0..ac148ee 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -3769,6 +3769,14 @@ void qInitImageConversions()
         converter_map[QImage::Format_RGB888][QImage::Format_ARGB32_Premultiplied] = convert_RGB888_to_RGB32_ssse3;
     }
 #endif
+#ifdef QT_HAVE_NEON
+    if (features & NEON) {
+        extern void convert_RGB888_to_RGB32_neon(QImageData *dest, const QImageData *src, Qt::ImageConversionFlags);
+        converter_map[QImage::Format_RGB888][QImage::Format_RGB32] = convert_RGB888_to_RGB32_neon;
+        converter_map[QImage::Format_RGB888][QImage::Format_ARGB32] = convert_RGB888_to_RGB32_neon;
+        converter_map[QImage::Format_RGB888][QImage::Format_ARGB32_Premultiplied] = convert_RGB888_to_RGB32_neon;
+    }
+#endif
 }
 
 /*!
diff --git a/src/gui/image/qimage_neon.cpp b/src/gui/image/qimage_neon.cpp
new file mode 100644
index 0000000..15bf472
--- /dev/null
+++ b/src/gui/image/qimage_neon.cpp
@@ -0,0 +1,114 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qimage.h>
+#include <private/qimage_p.h>
+#include <private/qsimd_p.h>
+
+#ifdef QT_HAVE_NEON
+
+QT_BEGIN_NAMESPACE
+
+Q_GUI_EXPORT void QT_FASTCALL qt_convert_rgb888_to_rgb32_neon(quint32 *dst, const uchar *src, int len)
+{
+    if (!len)
+        return;
+
+    const quint32 *const end = dst + len;
+
+    // align dst on 64 bits
+    const int offsetToAlignOn8Bytes = (reinterpret_cast<quintptr>(dst) >> 2) & 0x1;
+    for (int i = 0; i < offsetToAlignOn8Bytes; ++i) {
+        *dst++ = qRgb(src[0], src[1], src[2]);
+        src += 3;
+    }
+
+    if ((len - offsetToAlignOn8Bytes) >= 8) {
+        const quint32 *const simdEnd = end - 7;
+        register uint8x8_t fullVector asm ("d3") = vdup_n_u8(0xff);
+        do {
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+            asm volatile (
+                "vld3.8     { d4, d5, d6 }, [%[SRC]] !\n\t"
+                "vst4.8     { d3, d4, d5, d6 }, [%[DST],:64] !\n\t"
+                : [DST]"+r" (dst), [SRC]"+r" (src)
+                : "w"(fullVector)
+                : "memory", "d4", "d5", "d6"
+            );
+#else
+            asm volatile (
+                "vld3.8     { d0, d1, d2 }, [%[SRC]] !\n\t"
+                "vswp d0, d2\n\t"
+                "vst4.8     { d0, d1, d2, d3 }, [%[DST],:64] !\n\t"
+                : [DST]"+r" (dst), [SRC]"+r" (src)
+                : "w"(fullVector)
+                : "memory", "d0", "d1", "d2"
+            );
+#endif
+        } while (dst < simdEnd);
+    }
+
+    while (dst != end) {
+        *dst++ = qRgb(src[0], src[1], src[2]);
+        src += 3;
+    }
+}
+
+void convert_RGB888_to_RGB32_neon(QImageData *dest, const QImageData *src, Qt::ImageConversionFlags)
+{
+    Q_ASSERT(src->format == QImage::Format_RGB888);
+    Q_ASSERT(dest->format == QImage::Format_RGB32 || dest->format == QImage::Format_ARGB32 || dest->format == QImage::Format_ARGB32_Premultiplied);
+    Q_ASSERT(src->width == dest->width);
+    Q_ASSERT(src->height == dest->height);
+
+    const uchar *src_data = (uchar *) src->data;
+    quint32 *dest_data = (quint32 *) dest->data;
+
+    for (int i = 0; i < src->height; ++i) {
+        qt_convert_rgb888_to_rgb32_neon(dest_data, src_data, src->width);
+        src_data += src->bytes_per_line;
+        dest_data = (quint32 *)((uchar*)dest_data + dest->bytes_per_line);
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_HAVE_NEON
diff --git a/src/gui/image/qjpeghandler.cpp b/src/gui/image/qjpeghandler.cpp
index d358a5e..eda5efb 100644
--- a/src/gui/image/qjpeghandler.cpp
+++ b/src/gui/image/qjpeghandler.cpp
@@ -803,9 +803,16 @@ bool QJpegHandlerPrivate::read(QImage *image)
 QJpegHandler::QJpegHandler()
     : d(new QJpegHandlerPrivate(this))
 {
-#if defined(QT_HAVE_SSSE3)
     const uint features = qDetectCPUFeatures();
-
+    Q_UNUSED(features);
+#if defined(QT_HAVE_NEON)
+    // from qimage_neon.cpp
+    Q_GUI_EXPORT void QT_FASTCALL qt_convert_rgb888_to_rgb32_neon(quint32 *dst, const uchar *src, int len);
+
+    if (features & NEON)
+        rgb888ToRgb32ConverterPtr = qt_convert_rgb888_to_rgb32_neon;
+#endif // QT_HAVE_NEON
+#if defined(QT_HAVE_SSSE3)
     // from qimage_ssse3.cpp
     Q_GUI_EXPORT void QT_FASTCALL qt_convert_rgb888_to_rgb32_ssse3(quint32 *dst, const uchar *src, int len);
 
diff --git a/src/gui/inputmethod/qcoefepinputcontext_s60.cpp b/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
index 394d374..c4d60a5 100644
--- a/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
+++ b/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
@@ -364,10 +364,10 @@ void QCoeFepInputContext::applyHints(Qt::InputMethodHints hints)
 
     commitTemporaryPreeditString();
 
-    bool numbersOnly = hints & ImhDigitsOnly || hints & ImhFormattedNumbersOnly
-            || hints & ImhDialableCharactersOnly;
-    bool noOnlys = !(numbersOnly || hints & ImhUppercaseOnly
-            || hints & ImhLowercaseOnly);
+    const bool anynumbermodes = hints & (ImhDigitsOnly | ImhFormattedNumbersOnly | ImhDialableCharactersOnly);
+    const bool anytextmodes = hints & (ImhUppercaseOnly | ImhLowercaseOnly | ImhEmailCharactersOnly | ImhUrlCharactersOnly);
+    const bool numbersOnly = anynumbermodes && !anytextmodes;
+    const bool noOnlys = !(hints & ImhExclusiveInputMask);
     TInt flags;
     Qt::InputMethodHints oldHints = hints;
 
@@ -379,8 +379,7 @@ void QCoeFepInputContext::applyHints(Qt::InputMethodHints hints)
     }
     if (!noOnlys) {
         // Make sure that the preference is within the permitted set.
-        if (hints & ImhPreferNumbers && !(hints & ImhDigitsOnly || hints & ImhFormattedNumbersOnly
-                || hints & ImhDialableCharactersOnly)) {
+        if (hints & ImhPreferNumbers && !anynumbermodes) {
             hints &= ~ImhPreferNumbers;
         } else if (hints & ImhPreferUppercase && !(hints & ImhUppercaseOnly)) {
             hints &= ~ImhPreferUppercase;
@@ -393,8 +392,7 @@ void QCoeFepInputContext::applyHints(Qt::InputMethodHints hints)
                 hints |= ImhPreferLowercase;
             } else if (hints & ImhUppercaseOnly) {
                 hints |= ImhPreferUppercase;
-            } else if (hints & ImhDigitsOnly || hints & ImhFormattedNumbersOnly
-                    || hints & ImhDialableCharactersOnly) {
+            } else if (numbersOnly) {
                 hints |= ImhPreferNumbers;
             }
         }
@@ -408,13 +406,21 @@ void QCoeFepInputContext::applyHints(Qt::InputMethodHints hints)
         m_fepState->SetCurrentInputMode(EAknEditorTextInputMode);
     }
     flags = 0;
-    if (numbersOnly) {
+    if (noOnlys || (anynumbermodes && anytextmodes)) {
+        flags = EAknEditorAllInputModes;
+    }
+    else if (anynumbermodes) {
         flags |= EAknEditorNumericInputMode;
+        if (QSysInfo::s60Version() > QSysInfo::SV_S60_5_0
+            && ((hints & ImhFormattedNumbersOnly) || (hints & ImhDialableCharactersOnly))) {
+            //workaround - the * key does not launch the symbols menu, making it impossible to use these modes unless text mode is enabled.
+            flags |= EAknEditorTextInputMode;
+        }
     }
-    if (hints & ImhUppercaseOnly || hints & ImhLowercaseOnly) {
+    else if (anytextmodes) {
         flags |= EAknEditorTextInputMode;
     }
-    if (flags == 0) {
+    else {
         flags = EAknEditorAllInputModes;
     }
     m_fepState->SetPermittedInputModes(flags);
@@ -461,24 +467,33 @@ void QCoeFepInputContext::applyHints(Qt::InputMethodHints hints)
     if (hints & ImhNoPredictiveText || hints & ImhHiddenText) {
         flags |= EAknEditorFlagNoT9;
     }
+    // if alphanumeric input, or if multiple incompatible number modes are selected;
+    // then make all symbols available in numeric mode too.
+    if (!numbersOnly || ((hints & ImhFormattedNumbersOnly) && (hints & ImhDialableCharactersOnly)))
+        flags |= EAknEditorFlagUseSCTNumericCharmap;
     m_fepState->SetFlags(flags);
     ReportAknEdStateEvent(MAknEdStateObserver::EAknEdwinStateFlagsUpdate);
 
-    if (hints & ImhFormattedNumbersOnly) {
+    if (hints & ImhDialableCharactersOnly) {
+        // This is first, because if (ImhDialableCharactersOnly | ImhFormattedNumbersOnly)
+        // is specified, this one is more natural (# key enters a #)
+        flags = EAknEditorStandardNumberModeKeymap;
+    } else if (hints & ImhFormattedNumbersOnly) {
+        // # key enters decimal point
         flags = EAknEditorCalculatorNumberModeKeymap;
     } else if (hints & ImhDigitsOnly) {
+        // This is last, because it is most restrictive (# key is inactive)
         flags = EAknEditorPlainNumberModeKeymap;
     } else {
-        // ImhDialableCharactersOnly is the fallback as well, so we don't need to check for
-        // that flag.
         flags = EAknEditorStandardNumberModeKeymap;
     }
     m_fepState->SetNumericKeymap(static_cast<TAknEditorNumericKeymap>(flags));
 
-    if (hints & ImhEmailCharactersOnly) {
-        m_fepState->SetSpecialCharacterTableResourceId(R_AVKON_EMAIL_ADDR_SPECIAL_CHARACTER_TABLE_DIALOG);
-    } else if (hints & ImhUrlCharactersOnly) {
+    if (hints & ImhUrlCharactersOnly) {
+        // URL characters is everything except space, so a superset of the other restrictions
         m_fepState->SetSpecialCharacterTableResourceId(R_AVKON_URL_SPECIAL_CHARACTER_TABLE_DIALOG);
+    } else if (hints & ImhEmailCharactersOnly) {
+        m_fepState->SetSpecialCharacterTableResourceId(R_AVKON_EMAIL_ADDR_SPECIAL_CHARACTER_TABLE_DIALOG);
     } else {
         m_fepState->SetSpecialCharacterTableResourceId(R_AVKON_SPECIAL_CHARACTER_TABLE_DIALOG);
     }
diff --git a/src/gui/itemviews/qsortfilterproxymodel.cpp b/src/gui/itemviews/qsortfilterproxymodel.cpp
index f9b6b94..953a7f1 100644
--- a/src/gui/itemviews/qsortfilterproxymodel.cpp
+++ b/src/gui/itemviews/qsortfilterproxymodel.cpp
@@ -774,7 +774,7 @@ void QSortFilterProxyModelPrivate::source_items_inserted(
     if (model->rowCount(source_parent) == delta_item_count) {
         // Items were inserted where there were none before.
         // If it was new rows make sure to create mappings for columns so that a
-        // valid mapping can be retreived later and vice-versa.
+        // valid mapping can be retrieved later and vice-versa.
 
         QVector<int> &orthogonal_proxy_to_source = (orient == Qt::Horizontal) ? m->source_rows : m->source_columns;
         QVector<int> &orthogonal_source_to_proxy = (orient == Qt::Horizontal) ? m->proxy_rows : m->proxy_columns;
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index 3303800..e164baf 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -474,7 +474,7 @@ int qt_antialiasing_threshold = -1;
 static int drag_time = 500;
 #ifdef Q_OS_SYMBIAN
 // The screens are a bit too small to for your thumb when using only 4 pixels drag distance.
-static int drag_distance = 8;
+static int drag_distance = 12;
 #else
 static int drag_distance = 4;
 #endif
diff --git a/src/gui/kernel/qapplication.h b/src/gui/kernel/qapplication.h
index 799d4c2..0242582 100644
--- a/src/gui/kernel/qapplication.h
+++ b/src/gui/kernel/qapplication.h
@@ -412,6 +412,9 @@ private:
 #if defined(QT_RX71_MULTITOUCH)
     Q_PRIVATE_SLOT(d_func(), void _q_readRX71MultiTouchEvents())
 #endif
+#if defined(Q_OS_SYMBIAN)
+    Q_PRIVATE_SLOT(d_func(), void _q_aboutToQuit())
+#endif
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/kernel/qapplication_p.h b/src/gui/kernel/qapplication_p.h
index 53205b5..8dc16e0 100644
--- a/src/gui/kernel/qapplication_p.h
+++ b/src/gui/kernel/qapplication_p.h
@@ -519,6 +519,7 @@ public:
     int symbianHandleCommand(const QSymbianEvent *symbianEvent);
     int symbianResourceChange(const QSymbianEvent *symbianEvent);
 
+    void _q_aboutToQuit();
 #endif
 #if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined (Q_WS_QWS) || defined(Q_WS_MAC)
     void sendSyntheticEnterLeave(QWidget *widget);
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index f8734b2..e64ebb1 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -87,6 +87,10 @@
 #include <hal.h>
 #include <hal_data.h>
 
+#ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+#include <graphics/wstfxconst.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 
 // Goom Events through Window Server
@@ -372,7 +376,7 @@ void QSymbianControl::ConstructL(bool isWindowOwning, bool desktop)
 {
     if (!desktop)
     {
-        if (isWindowOwning or !qwidget->parentWidget())
+        if (isWindowOwning || !qwidget->parentWidget())
             CreateWindowL(S60->windowGroup());
         else
             /**
@@ -395,6 +399,34 @@ void QSymbianControl::ConstructL(bool isWindowOwning, bool desktop)
 
         DrawableWindow()->SetPointerGrab(ETrue);
     }
+
+#ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+    if (OwnsWindow()) {
+        TTfxWindowPurpose windowPurpose(ETfxPurposeNone);
+        switch (qwidget->windowType()) {
+        case Qt::Dialog:
+            windowPurpose = ETfxPurposeDialogWindow;
+            break;
+        case Qt::Popup:
+            windowPurpose = ETfxPurposePopupWindow;
+            break;
+        case Qt::Tool:
+            windowPurpose = ETfxPurposeToolWindow;
+            break;
+        case Qt::ToolTip:
+            windowPurpose = ETfxPurposeToolTipWindow;
+            break;
+        case Qt::SplashScreen:
+            windowPurpose = ETfxPurposeSplashScreenWindow;
+            break;
+        default:
+            windowPurpose = (isWindowOwning || !qwidget->parentWidget())
+                            ? ETfxPurposeWindow : ETfxPurposeChildWindow;
+            break;
+        }
+        Window().SetPurpose(windowPurpose);
+    }
+#endif
 }
 
 QSymbianControl::~QSymbianControl()
@@ -1035,7 +1067,7 @@ void QSymbianControl::Draw(const TRect& controlRect) const
         if (QApplicationPrivate::runtime_graphics_system) {
             QRuntimeWindowSurface *rtSurface =
                     static_cast<QRuntimeWindowSurface*>(qwidget->windowSurface());
-            s60Surface = static_cast<QS60WindowSurface *>(rtSurface->m_windowSurface);
+            s60Surface = static_cast<QS60WindowSurface *>(rtSurface->m_windowSurface.data());
         } else
 #endif
             s60Surface = static_cast<QS60WindowSurface *>(qwidget->windowSurface());
@@ -1055,7 +1087,8 @@ void QSymbianControl::Draw(const TRect& controlRect) const
             break;
 
         case QWExtra::ZeroFill:
-            if (Window().DisplayMode() == EColor16MA) {
+            if (Window().DisplayMode() == EColor16MA
+                || Window().DisplayMode() == Q_SYMBIAN_ECOLOR16MAP) {
                 gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
                 gc.SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha);
                 gc.SetBrushColor(TRgb::Color16MA(0));
@@ -1328,7 +1361,7 @@ void qt_init(QApplicationPrivate * /* priv */, int)
         // framework destruction.
         TTrapHandler *origTrapHandler = User::TrapHandler();
 
-        // The S60 framework has not been initalized. We need to do it.
+        // The S60 framework has not been initialized. We need to do it.
         TApaApplicationFactory factory(S60->s60ApplicationFactory ?
                 S60->s60ApplicationFactory : newS60Application);
         CApaCommandLine* commandLine = 0;
@@ -1483,6 +1516,10 @@ void qt_init(QApplicationPrivate * /* priv */, int)
     systemFont.setFamily(systemFont.defaultFamily());
     QApplicationPrivate::setSystemFont(systemFont);
 
+#ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+    QObject::connect(qApp, SIGNAL(aboutToQuit()), qApp, SLOT(_q_aboutToQuit()));
+#endif
+
 /*
  ### Commented out for now as parameter handling not needed in SOS(yet). Code below will break testlib with -o flag
     int argc = priv->argc;
@@ -1506,7 +1543,7 @@ void qt_init(QApplicationPrivate * /* priv */, int)
 */
 
     // Register WId with the metatype system.  This is to enable
-    // QWidgetPrivate::create_sys to used delayed slot invokation in order
+    // QWidgetPrivate::create_sys to used delayed slot invocation in order
     // to destroy WId objects during reparenting.
     qRegisterMetaType<WId>("WId");
 }
@@ -1572,6 +1609,9 @@ bool QApplicationPrivate::modalState()
 
 void QApplicationPrivate::enterModal_sys(QWidget *widget)
 {
+#ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+    S60->wsSession().SendEffectCommand(ETfxCmdAppModalModeEnter);
+#endif
     if (widget) {
         static_cast<QSymbianControl *>(widget->effectiveWinId())->FadeBehindPopup(ETrue);
         // Modal partial screen dialogs (like queries) capture pointer events.
@@ -1587,6 +1627,9 @@ void QApplicationPrivate::enterModal_sys(QWidget *widget)
 
 void QApplicationPrivate::leaveModal_sys(QWidget *widget)
 {
+#ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+    S60->wsSession().SendEffectCommand(ETfxCmdAppModalModeExit);
+#endif
     if (widget) {
         static_cast<QSymbianControl *>(widget->effectiveWinId())->FadeBehindPopup(EFalse);
         // ### FixMe: Add specialized behaviour for fullscreen modal dialogs
@@ -1883,6 +1926,9 @@ int QApplicationPrivate::symbianProcessWsEvent(const QSymbianEvent *symbianEvent
                 break;
             QRefCountedWidgetBackingStore &backingStore = window->d_func()->maybeTopData()->backingStore;
             if (visChangedEvent->iFlags & TWsVisibilityChangedEvent::ENotVisible) {
+#ifdef  SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+                S60->wsSession().SendEffectCommand(ETfxCmdDeallocateLayer);
+#endif
                 // Decrement backing store reference count
                 backingStore.deref();
                 // In order to ensure that any resources used by the window surface
@@ -1893,6 +1939,9 @@ int QApplicationPrivate::symbianProcessWsEvent(const QSymbianEvent *symbianEvent
                     // Increment backing store reference count
                     backingStore.ref();
                 } else {
+#ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+                    S60->wsSession().SendEffectCommand(ETfxCmdRestoreLayer);
+#endif
                     // Create backing store with an initial reference count of 1
                     backingStore.create(window);
                     backingStore.ref();
@@ -1953,13 +2002,6 @@ int QApplicationPrivate::symbianProcessWsEvent(const QSymbianEvent *symbianEvent
             if (switchToSwRendering) {
                 QRuntimeGraphicsSystem *gs =
                    static_cast<QRuntimeGraphicsSystem*>(QApplicationPrivate::graphics_system);
-
-                uint memoryUsage = gs->memoryUsage();
-                uint memoryForFullscreen = ( S60->screenDepth / 8 )
-                                           * S60->screenWidthInPixels
-                                           * S60->screenHeightInPixels;
-
-                S60->memoryLimitForHwRendering = memoryUsage - memoryForFullscreen;
                 gs->setGraphicsSystem(QLatin1String("raster"));
             }
         }
@@ -1975,8 +2017,7 @@ int QApplicationPrivate::symbianProcessWsEvent(const QSymbianEvent *symbianEvent
         if(QApplicationPrivate::runtime_graphics_system) {
             QRuntimeGraphicsSystem *gs =
                    static_cast<QRuntimeGraphicsSystem*>(QApplicationPrivate::graphics_system);
-            gs->setGraphicsSystem(QLatin1String("openvg"), S60->memoryLimitForHwRendering);
-            S60->memoryLimitForHwRendering = 0;
+            gs->setGraphicsSystem(QLatin1String("openvg"));
         }
 #endif
         break;
@@ -2276,6 +2317,14 @@ void QApplication::restoreOverrideCursor()
 
 #endif // QT_NO_CURSOR
 
+void QApplicationPrivate::_q_aboutToQuit()
+{
+#ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
+    // Send the shutdown tfx command
+    S60->wsSession().SendEffectCommand(ETfxCmdAppShutDown);
+#endif
+}
+
 QS60ThreadLocalData::QS60ThreadLocalData()
 {
     CCoeEnv *env = CCoeEnv::Static();
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp
index bbc9e0b..eade02e 100644
--- a/src/gui/kernel/qevent.cpp
+++ b/src/gui/kernel/qevent.cpp
@@ -4281,6 +4281,11 @@ QTouchEvent::TouchPoint &QTouchEvent::TouchPoint::operator=(const QTouchEvent::T
     QGestureEvent::accept() for each of them, or an event filter consumes the
     event.
 
+    \section1 Further Reading
+
+    For an overview of gesture handling in Qt and information on using gestures
+    in your applications, see the \l{Gestures Programming} document.
+
     \sa QGesture, QGestureRecognizer,
         QWidget::grabGesture(), QGraphicsObject::grabGesture()
 */
diff --git a/src/gui/kernel/qgesture.cpp b/src/gui/kernel/qgesture.cpp
index 4a4452a..13274c4 100644
--- a/src/gui/kernel/qgesture.cpp
+++ b/src/gui/kernel/qgesture.cpp
@@ -59,6 +59,9 @@ QT_BEGIN_NAMESPACE
     the QGestureRecognizer object that is registered with the application; see
     QGestureRecognizer::registerRecognizer().
 
+    For an overview of gesture handling in Qt and information on using gestures
+    in your applications, see the \l{Gestures Programming} document.
+
     \section1 Gesture Properties
 
     The class has a list of properties that can be queried by the user to get
@@ -219,7 +222,10 @@ QGesture::GestureCancelPolicy QGesture::gestureCancelPolicy() const
 
     \image pangesture.png
 
-    \sa {Gestures Programming}, QPinchGesture, QSwipeGesture
+    For an overview of gesture handling in Qt and information on using gestures
+    in your applications, see the \l{Gestures Programming} document.
+
+    \sa QPinchGesture, QSwipeGesture
 */
 
 /*!
@@ -314,6 +320,9 @@ void QPanGesture::setAcceleration(qreal value)
     them closer together or further apart to change the scale factor, zoom, or level
     of detail of the user interface.
 
+    For an overview of gesture handling in Qt and information on using gestures
+    in your applications, see the \l{Gestures Programming} document.
+
     \image pinchgesture.png
 
     Instead of repeatedly applying the same pinching gesture, the user may
@@ -322,7 +331,7 @@ void QPanGesture::setAcceleration(qreal value)
     will continue to be delivered to the target object, containing an instance
     of QPinchGesture in the Qt::GestureUpdated state.
 
-    \sa {Gestures Programming}, QPanGesture, QSwipeGesture
+    \sa QPanGesture, QSwipeGesture
 */
 
 /*!
@@ -572,7 +581,10 @@ void QPinchGesture::setRotationAngle(qreal value)
 
     \image swipegesture.png
 
-    \sa {Gestures Programming}, QPanGesture, QPinchGesture
+    For an overview of gesture handling in Qt and information on using gestures
+    in your applications, see the \l{Gestures Programming} document.
+
+    \sa QPanGesture, QPinchGesture
 */
 
 /*!
@@ -667,7 +679,10 @@ void QSwipeGesture::setSwipeAngle(qreal value)
     \brief The QTapGesture class describes a tap gesture made by the user.
     \ingroup gestures
 
-    \sa {Gestures Programming}, QPanGesture, QPinchGesture
+    For an overview of gesture handling in Qt and information on using gestures
+    in your applications, see the \l{Gestures Programming} document.
+
+    \sa QPanGesture, QPinchGesture
 */
 
 /*!
@@ -700,7 +715,10 @@ void QTapGesture::setPosition(const QPointF &value)
     gesture made by the user.
     \ingroup gestures
 
-    \sa {Gestures Programming}, QPanGesture, QPinchGesture
+    For an overview of gesture handling in Qt and information on using gestures
+    in your applications, see the \l{Gestures Programming} document.
+
+    \sa QPanGesture, QPinchGesture
 */
 
 /*!
diff --git a/src/gui/kernel/qgesturerecognizer.cpp b/src/gui/kernel/qgesturerecognizer.cpp
index 3e23bbf..e0e7784 100644
--- a/src/gui/kernel/qgesturerecognizer.cpp
+++ b/src/gui/kernel/qgesturerecognizer.cpp
@@ -62,6 +62,9 @@ QT_BEGIN_NAMESPACE
    need to use this class directly. Instances will be created behind the scenes by the
    framework.
 
+   For an overview of gesture handling in Qt and information on using gestures
+   in your applications, see the \l{Gestures Programming} document.
+
    \section1 Recognizing Gestures
 
    The process of recognizing gestures involves filtering input events sent to specific
diff --git a/src/gui/kernel/qt_s60_p.h b/src/gui/kernel/qt_s60_p.h
index 7f0c99e..a18ea07 100644
--- a/src/gui/kernel/qt_s60_p.h
+++ b/src/gui/kernel/qt_s60_p.h
@@ -141,7 +141,6 @@ public:
     int supportsPremultipliedAlpha : 1;
     int avkonComponentsSupportTransparency : 1;
     int menuBeingConstructed : 1;
-    int memoryLimitForHwRendering;
     QApplication::QS60MainApplicationFactory s60ApplicationFactory; // typedef'ed pointer type
 
     enum ScanCodeState {
@@ -291,7 +290,6 @@ inline QS60Data::QS60Data()
   supportsPremultipliedAlpha(0),
   avkonComponentsSupportTransparency(0),
   menuBeingConstructed(0),
-  memoryLimitForHwRendering(0),
   s60ApplicationFactory(0)
 #ifdef Q_OS_SYMBIAN
   ,s60InstalledTrapHandler(0)
diff --git a/src/gui/kernel/qwidget_win.cpp b/src/gui/kernel/qwidget_win.cpp
index 23f57da..59035b1 100644
--- a/src/gui/kernel/qwidget_win.cpp
+++ b/src/gui/kernel/qwidget_win.cpp
@@ -166,7 +166,7 @@ static void qt_tablet_init()
     qt_tablet_widget = new QWidget(0);
     qt_tablet_widget->createWinId();
     qt_tablet_widget->setObjectName(QLatin1String("Qt internal tablet widget"));
-    // We dont need this internal widget to appear in QApplication::topLevelWidgets()
+    // We don't need this internal widget to appear in QApplication::topLevelWidgets()
     if (QWidgetPrivate::allWidgets)
         QWidgetPrivate::allWidgets->remove(qt_tablet_widget);
     LOGCONTEXT lcMine;
@@ -1547,7 +1547,7 @@ bool QWidgetPrivate::shouldShowMaximizeButton()
 {
     if (data.window_flags & Qt::MSWindowsFixedSizeDialogHint)
         return false;
-    // if the user explicitely asked for the maximize button, we try to add
+    // if the user explicitly asked for the maximize button, we try to add
     // it even if the window has fixed size.
     if (data.window_flags & Qt::CustomizeWindowHint &&
         data.window_flags & Qt::WindowMaximizeButtonHint)
diff --git a/src/gui/painting/painting.pri b/src/gui/painting/painting.pri
index 4023f65..dfa4a48 100644
--- a/src/gui/painting/painting.pri
+++ b/src/gui/painting/painting.pri
@@ -246,23 +246,8 @@ symbian {
         QMAKE_CXXFLAGS.ARMCC *= -O3
 }
 
-neon:*-g++* {
-    DEFINES += QT_HAVE_NEON
-    HEADERS += painting/qdrawhelper_neon_p.h
-    SOURCES += painting/qdrawhelper_neon.cpp
-    QMAKE_CXXFLAGS *= -mfpu=neon
-
-    DRAWHELPER_NEON_ASM_FILES = ../3rdparty/pixman/pixman-arm-neon-asm.S painting/qdrawhelper_neon_asm.S
-
-    neon_compiler.commands = $$QMAKE_CXX -c
-    neon_compiler.commands += $(CXXFLAGS) $(INCPATH) ${QMAKE_FILE_IN} -o ${QMAKE_FILE_OUT}
-    neon_compiler.dependency_type = TYPE_C
-    neon_compiler.output = ${QMAKE_VAR_OBJECTS_DIR}${QMAKE_FILE_BASE}$${first(QMAKE_EXT_OBJ)}
-    neon_compiler.input = DRAWHELPER_NEON_ASM_FILES
-    neon_compiler.variable_out = OBJECTS
-    neon_compiler.name = compiling[neon] ${QMAKE_FILE_IN}
-    silent:neon_compiler.commands = @echo compiling[neon] ${QMAKE_FILE_IN} && $$neon_compiler.commands
-    QMAKE_EXTRA_COMPILERS += neon_compiler
-}
+NEON_SOURCES += painting/qdrawhelper_neon.cpp
+NEON_HEADERS += painting/qdrawhelper_neon_p.h
+NEON_ASM += ../3rdparty/pixman/pixman-arm-neon-asm.S painting/qdrawhelper_neon_asm.S
 
 include($$PWD/../../3rdparty/zlib_dependency.pri)
diff --git a/src/gui/painting/qdrawhelper_sse2.cpp b/src/gui/painting/qdrawhelper_sse2.cpp
index 7ab9eda..22c0384 100644
--- a/src/gui/painting/qdrawhelper_sse2.cpp
+++ b/src/gui/painting/qdrawhelper_sse2.cpp
@@ -112,9 +112,7 @@ void qt_blend_rgb32_on_rgb32_sse2(uchar *destPixels, int dbpl,
                 int x = 0;
 
                 // First, align dest to 16 bytes:
-                const int offsetToAlignOn16Bytes = (4 - ((reinterpret_cast<quintptr>(dst) >> 2) & 0x3)) & 0x3;
-                const int prologLength = qMin(w, offsetToAlignOn16Bytes);
-                for (; x < prologLength; ++x) {
+                ALIGNMENT_PROLOGUE_16BYTES(dst, x, w) {
                     quint32 s = src[x];
                     s = BYTE_MUL(s, const_alpha);
                     dst[x] = INTERPOLATE_PIXEL_255(src[x], const_alpha, dst[x], one_minus_const_alpha);
@@ -182,12 +180,10 @@ inline int comp_func_Plus_one_pixel(uint d, const uint s)
 void QT_FASTCALL comp_func_Plus_sse2(uint *dst, const uint *src, int length, uint const_alpha)
 {
     int x = 0;
-    const int offsetToAlignOn16Bytes = (4 - ((reinterpret_cast<quintptr>(dst) >> 2) & 0x3)) & 0x3;
-    const int prologLength = qMin(length, offsetToAlignOn16Bytes);
 
     if (const_alpha == 255) {
         // 1) Prologue: align destination on 16 bytes
-        for (; x < prologLength; ++x)
+        ALIGNMENT_PROLOGUE_16BYTES(dst, x, length)
             dst[x] = comp_func_Plus_one_pixel(dst[x], src[x]);
 
         // 2) composition with SSE2
@@ -208,7 +204,7 @@ void QT_FASTCALL comp_func_Plus_sse2(uint *dst, const uint *src, int length, uin
         const __m128i oneMinusConstAlpha =  _mm_set1_epi16(one_minus_const_alpha);
 
         // 1) Prologue: align destination on 16 bytes
-        for (; x < prologLength; ++x)
+        ALIGNMENT_PROLOGUE_16BYTES(dst, x, length)
             dst[x] = comp_func_Plus_one_pixel_const_alpha(dst[x], src[x], const_alpha, one_minus_const_alpha);
 
         const __m128i half = _mm_set1_epi16(0x80);
@@ -239,9 +235,7 @@ void QT_FASTCALL comp_func_Source_sse2(uint *dst, const uint *src, int length, u
         int x = 0;
 
         // 1) prologue, align on 16 bytes
-        const int offsetToAlignOn16Bytes = (4 - ((reinterpret_cast<quintptr>(dst) >> 2) & 0x3)) & 0x3;
-        const int prologLength = qMin(length, offsetToAlignOn16Bytes);
-        for (; x < prologLength; ++x)
+        ALIGNMENT_PROLOGUE_16BYTES(dst, x, length)
             dst[x] = INTERPOLATE_PIXEL_255(src[x], const_alpha, dst[x], ialpha);
 
         // 2) interpolate pixels with SSE2
diff --git a/src/gui/painting/qdrawingprimitive_sse2_p.h b/src/gui/painting/qdrawingprimitive_sse2_p.h
index 18355c2..d8f6bf5 100644
--- a/src/gui/painting/qdrawingprimitive_sse2_p.h
+++ b/src/gui/painting/qdrawingprimitive_sse2_p.h
@@ -143,9 +143,7 @@ QT_BEGIN_NAMESPACE
     int x = 0; \
 \
     /* First, get dst aligned. */ \
-    const int offsetToAlignOn16Bytes = (4 - ((reinterpret_cast<quintptr>(dst) >> 2) & 0x3)) & 0x3;\
-    const int prologLength = qMin(length, offsetToAlignOn16Bytes);\
-    for (; x < prologLength; ++x) { \
+    ALIGNMENT_PROLOGUE_16BYTES(dst, x, length) { \
         uint s = src[x]; \
         if (s >= 0xff000000) \
             dst[x] = s; \
@@ -202,9 +200,7 @@ QT_BEGIN_NAMESPACE
 { \
     int x = 0; \
 \
-    const int offsetToAlignOn16Bytes = (4 - ((reinterpret_cast<quintptr>(dst) >> 2) & 0x3)) & 0x3;\
-    const int prologLength = qMin(length, offsetToAlignOn16Bytes);\
-    for (; x < prologLength; ++x) { \
+    ALIGNMENT_PROLOGUE_16BYTES(dst, x, length) { \
         quint32 s = src[x]; \
         if (s != 0) { \
             s = BYTE_MUL(s, const_alpha); \
diff --git a/src/gui/painting/qgraphicssystem_runtime.cpp b/src/gui/painting/qgraphicssystem_runtime.cpp
index 568f4d7..e1e0ad0 100644
--- a/src/gui/painting/qgraphicssystem_runtime.cpp
+++ b/src/gui/painting/qgraphicssystem_runtime.cpp
@@ -53,10 +53,8 @@ QT_BEGIN_NAMESPACE
 static int qt_pixmap_serial = 0;
 
 #define READBACK(f)                                         \
-    m_graphicsSystem->decreaseMemoryUsage(memoryUsage());   \
     f                                                       \
-    readBackInfo();                                         \
-    m_graphicsSystem->increaseMemoryUsage(memoryUsage());   \
+    readBackInfo();
 
 
 class QDeferredGraphicsSystemChange : public QObject
@@ -252,16 +250,8 @@ QPixmapData* QRuntimePixmapData::runtimeData() const
     return m_data;
 }
 
-uint QRuntimePixmapData::memoryUsage() const
-{
-    if(is_null || d == 0)
-        return 0;
-    return w * h * (d / 8);
-}
-
-
 QRuntimeWindowSurface::QRuntimeWindowSurface(const QRuntimeGraphicsSystem *gs, QWidget *window)
-    : QWindowSurface(window), m_windowSurface(0), m_pendingWindowSurface(0), m_graphicsSystem(gs)
+    : QWindowSurface(window), m_graphicsSystem(gs)
 {
 
 }
@@ -269,7 +259,6 @@ QRuntimeWindowSurface::QRuntimeWindowSurface(const QRuntimeGraphicsSystem *gs, Q
 QRuntimeWindowSurface::~QRuntimeWindowSurface()
 {
     m_graphicsSystem->removeWindowSurface(this);
-    delete m_windowSurface;
 }
 
 QPaintDevice *QRuntimeWindowSurface::paintDevice()
@@ -288,16 +277,13 @@ void QRuntimeWindowSurface::flush(QWidget *widget, const QRegion &region,
 #ifdef QT_DEBUG
         qDebug() << "QRuntimeWindowSurface::flush() - destroy pending window surface";
 #endif
-        delete m_pendingWindowSurface;
-        m_pendingWindowSurface = 0;
+        m_pendingWindowSurface.reset();
     }
 }
 
 void QRuntimeWindowSurface::setGeometry(const QRect &rect)
 {
-    m_graphicsSystem->decreaseMemoryUsage(memoryUsage());
     m_windowSurface->setGeometry(rect);
-    m_graphicsSystem->increaseMemoryUsage(memoryUsage());
 }
 
 bool QRuntimeWindowSurface::scroll(const QRegion &area, int dx, int dy)
@@ -330,18 +316,9 @@ QPoint QRuntimeWindowSurface::offset(const QWidget *widget) const
     return m_windowSurface->offset(widget);
 }
 
-uint QRuntimeWindowSurface::memoryUsage() const
-{
-    QPaintDevice *pdev = m_windowSurface->paintDevice();
-    if (pdev && pdev->depth() != 0)
-        return pdev->width() * pdev->height() * (pdev->depth()/8);
-
-    return 0;
-}
-
 QRuntimeGraphicsSystem::QRuntimeGraphicsSystem()
-    : m_memoryUsage(0), m_windowSurfaceDestroyPolicy(DestroyImmediately),
-	m_graphicsSystem(0), m_graphicsSystemChangeMemoryLimit(0)
+    : m_windowSurfaceDestroyPolicy(DestroyImmediately),
+      m_graphicsSystem(0)
 {
     QApplicationPrivate::graphics_system_name = QLatin1String("runtime");
     QApplicationPrivate::runtime_graphics_system = true;
@@ -376,37 +353,18 @@ QWindowSurface *QRuntimeGraphicsSystem::createWindowSurface(QWidget *widget) con
 {
     Q_ASSERT(m_graphicsSystem);
     QRuntimeWindowSurface *rtSurface = new QRuntimeWindowSurface(this, widget);
-    rtSurface->m_windowSurface = m_graphicsSystem->createWindowSurface(widget);
+    rtSurface->m_windowSurface.reset(m_graphicsSystem->createWindowSurface(widget));
     widget->setWindowSurface(rtSurface);
     m_windowSurfaces << rtSurface;
-    increaseMemoryUsage(rtSurface->memoryUsage());
     return rtSurface;
 }
 
-/*!
-    Sets graphics system when resource memory consumption is under /a memoryUsageLimit.
-*/
-void QRuntimeGraphicsSystem::setGraphicsSystem(const QString &name, uint memoryUsageLimit)
-{
-#ifdef QT_DEBUG
-    qDebug() << "QRuntimeGraphicsSystem::setGraphicsSystem( "<< name <<", " << memoryUsageLimit << ")";
-    qDebug() << "        current approximated graphics system memory usage " << memoryUsage() << " bytes";
-#endif
-    if (memoryUsage() >= memoryUsageLimit) {
-        m_graphicsSystemChangeMemoryLimit = memoryUsageLimit;
-        m_pendingGraphicsSystemName = name;
-    } else {
-        setGraphicsSystem(name);
-    }
-}
-
 void QRuntimeGraphicsSystem::setGraphicsSystem(const QString &name)
 {
     if (m_graphicsSystemName == name)
         return;
 #ifdef QT_DEBUG
     qDebug() << "QRuntimeGraphicsSystem::setGraphicsSystem( " << name << " )";
-    qDebug() << "        current approximated graphics system memory usage "<< memoryUsage() << " bytes";
 #endif
     delete m_graphicsSystem;
     m_graphicsSystem = QGraphicsSystemFactory::create(name);
@@ -414,13 +372,11 @@ void QRuntimeGraphicsSystem::setGraphicsSystem(const QString &name)
 
     Q_ASSERT(m_graphicsSystem);
 
-    m_graphicsSystemChangeMemoryLimit = 0;
     m_pendingGraphicsSystemName = QString();
 
     for (int i = 0; i < m_pixmapDatas.size(); ++i) {
         QRuntimePixmapData *proxy = m_pixmapDatas.at(i);
         QPixmapData *newData = m_graphicsSystem->createPixmapData(proxy->m_data);
-        // ### TODO Optimize. Openvg and s60raster graphics systems could switch internal ARGB32_PRE QImage buffers.
         newData->fromImage(proxy->m_data->toImage(), Qt::NoOpaqueDetection);
         delete proxy->m_data;
         proxy->m_data = newData;
@@ -431,14 +387,10 @@ void QRuntimeGraphicsSystem::setGraphicsSystem(const QString &name)
         QRuntimeWindowSurface *proxy = m_windowSurfaces.at(i);
         QWidget *widget = proxy->m_windowSurface->window();
 
-        if(m_windowSurfaceDestroyPolicy == DestroyImmediately) {
-            delete proxy->m_windowSurface;
-            proxy->m_pendingWindowSurface = 0;
-        } else {
-            proxy->m_pendingWindowSurface = proxy->m_windowSurface;
-        }
+        if(m_windowSurfaceDestroyPolicy == DestroyAfterFirstFlush)
+            proxy->m_pendingWindowSurface.reset(proxy->m_windowSurface.take());
 
-        proxy->m_windowSurface = m_graphicsSystem->createWindowSurface(widget);
+        proxy->m_windowSurface.reset(m_graphicsSystem->createWindowSurface(widget));
         qt_widget_private(widget)->invalidateBuffer(widget->rect());
     }
 }
@@ -447,42 +399,12 @@ void QRuntimeGraphicsSystem::removePixmapData(QRuntimePixmapData *pixmapData) co
 {
     int index = m_pixmapDatas.lastIndexOf(pixmapData);
     m_pixmapDatas.removeAt(index);
-    decreaseMemoryUsage(pixmapData->memoryUsage(), true);
 }
 
 void QRuntimeGraphicsSystem::removeWindowSurface(QRuntimeWindowSurface *windowSurface) const
 {
     int index = m_windowSurfaces.lastIndexOf(windowSurface);
     m_windowSurfaces.removeAt(index);
-    decreaseMemoryUsage(windowSurface->memoryUsage(), true);
-}
-
-void QRuntimeGraphicsSystem::increaseMemoryUsage(uint amount) const
-{
-    m_memoryUsage += amount;
-
-    if (m_graphicsSystemChangeMemoryLimit &&
-        m_memoryUsage < m_graphicsSystemChangeMemoryLimit) {
-
-        QRuntimeGraphicsSystem *gs = const_cast<QRuntimeGraphicsSystem*>(this);
-        QDeferredGraphicsSystemChange *deferredChange =
-                    new QDeferredGraphicsSystemChange(gs, m_pendingGraphicsSystemName);
-        deferredChange->launch();
-    }
-}
-
-void QRuntimeGraphicsSystem::decreaseMemoryUsage(uint amount, bool persistent) const
-{
-    m_memoryUsage -= amount;
-
-    if (persistent && m_graphicsSystemChangeMemoryLimit &&
-        m_memoryUsage < m_graphicsSystemChangeMemoryLimit) {
-
-        QRuntimeGraphicsSystem *gs = const_cast<QRuntimeGraphicsSystem*>(this);
-        QDeferredGraphicsSystemChange *deferredChange =
-                    new QDeferredGraphicsSystemChange(gs, m_pendingGraphicsSystemName);
-        deferredChange->launch();
-    }
 }
 
 #include "qgraphicssystem_runtime.moc"
diff --git a/src/gui/painting/qgraphicssystem_runtime_p.h b/src/gui/painting/qgraphicssystem_runtime_p.h
index 7aab89c..0232241 100644
--- a/src/gui/painting/qgraphicssystem_runtime_p.h
+++ b/src/gui/painting/qgraphicssystem_runtime_p.h
@@ -104,8 +104,6 @@ public:
 
     virtual QPixmapData *runtimeData() const;
 
-    virtual uint memoryUsage() const;
-
 private:
     const QRuntimeGraphicsSystem *m_graphicsSystem;
 
@@ -131,10 +129,8 @@ public:
 
     virtual QPoint offset(const QWidget *widget) const;
 
-    virtual uint memoryUsage() const;
-
-    QWindowSurface *m_windowSurface;
-    QWindowSurface *m_pendingWindowSurface;
+    QScopedPointer<QWindowSurface> m_windowSurface;
+    QScopedPointer<QWindowSurface> m_pendingWindowSurface;
 
 private:
     const QRuntimeGraphicsSystem *m_graphicsSystem;
@@ -159,7 +155,6 @@ public:
     void removePixmapData(QRuntimePixmapData *pixmapData) const;
     void removeWindowSurface(QRuntimeWindowSurface *windowSurface) const;
 
-    void setGraphicsSystem(const QString &name, uint memoryUsageLimit);
     void setGraphicsSystem(const QString &name);
     QString graphicsSystemName() const { return m_graphicsSystemName; }
 
@@ -170,22 +165,14 @@ public:
 
     int windowSurfaceDestroyPolicy() const { return m_windowSurfaceDestroyPolicy; }
 
-    uint memoryUsage() const { return m_memoryUsage; }
-
-private:
-
-    void increaseMemoryUsage(uint amount) const;
-    void decreaseMemoryUsage(uint amount, bool persistent = false) const;
 
 private:
-    mutable uint m_memoryUsage;
     int m_windowSurfaceDestroyPolicy;
     QGraphicsSystem *m_graphicsSystem;
     mutable QList<QRuntimePixmapData *> m_pixmapDatas;
     mutable QList<QRuntimeWindowSurface *> m_windowSurfaces;
     QString m_graphicsSystemName;
 
-    uint m_graphicsSystemChangeMemoryLimit;
     QString m_pendingGraphicsSystemName;
 
     friend class QRuntimePixmapData;
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index 9dadbd5..b694d9c 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -90,6 +90,15 @@ void qt_format_text(const QFont &font,
                     const QRectF &_r, int tf, const QTextOption *option, const QString& str, QRectF *brect,
                     int tabstops, int* tabarray, int tabarraylen,
                     QPainter *painter);
+static void drawTextItemDecoration(QPainter *painter, const QPointF &pos, const QFontEngine *fe,
+                                   QTextCharFormat::UnderlineStyle underlineStyle,
+                                   const QTextItem::RenderFlags flags, qreal width,
+                                   const QTextCharFormat &charFormat);
+// Helper function to calculate left most position, width and flags for decoration drawing
+static void drawDecorationForGlyphs(QPainter *painter, const glyph_t *glyphArray,
+                                    const QFixedPoint *positions, int glyphCount,
+                                    QFontEngine *fontEngine, const QFont &font,
+                                    const QTextCharFormat &charFormat);
 
 static inline QGradient::CoordinateMode coordinateMode(const QBrush &brush)
 {
@@ -5923,6 +5932,10 @@ void QPainter::drawStaticText(const QPointF &topLeftPosition, const QStaticText
             currentColor = item->color;
         }
         d->extended->drawStaticTextItem(item);
+
+        drawDecorationForGlyphs(this, item->glyphs, item->glyphPositions,
+                                item->numGlyphs, item->fontEngine, staticText_d->font,
+                                QTextCharFormat());
     }
     if (currentColor != oldPen.color())
         setPen(oldPen);
@@ -6290,15 +6303,15 @@ static QPixmap generateWavyPixmap(qreal maxRadius, const QPen &pen)
     return pixmap;
 }
 
-static void drawTextItemDecoration(QPainter *painter, const QPointF &pos, const QTextItemInt &ti)
+static void drawTextItemDecoration(QPainter *painter, const QPointF &pos, const QFontEngine *fe,
+                                   QTextCharFormat::UnderlineStyle underlineStyle,
+                                   const QTextItem::RenderFlags flags, qreal width,
+                                   const QTextCharFormat &charFormat)
 {
-    QTextCharFormat::UnderlineStyle underlineStyle = ti.underlineStyle;
     if (underlineStyle == QTextCharFormat::NoUnderline
-        && !(ti.flags & (QTextItem::StrikeOut | QTextItem::Overline)))
+        && !(flags & (QTextItem::StrikeOut | QTextItem::Overline)))
         return;
 
-    QFontEngine *fe = ti.fontEngine;
-
     const QPen oldPen = painter->pen();
     const QBrush oldBrush = painter->brush();
     painter->setBrush(Qt::NoBrush);
@@ -6307,7 +6320,7 @@ static void drawTextItemDecoration(QPainter *painter, const QPointF &pos, const
     pen.setWidthF(fe->lineThickness().toReal());
     pen.setCapStyle(Qt::FlatCap);
 
-    QLineF line(pos.x(), pos.y(), pos.x() + ti.width.toReal(), pos.y());
+    QLineF line(pos.x(), pos.y(), pos.x() + width, pos.y());
 
     const qreal underlineOffset = fe->underlinePosition().toReal();
     // deliberately ceil the offset to avoid the underline coming too close to
@@ -6322,21 +6335,21 @@ static void drawTextItemDecoration(QPainter *painter, const QPointF &pos, const
         painter->save();
         painter->translate(0, pos.y() + 1);
 
-        QColor uc = ti.charFormat.underlineColor();
+        QColor uc = charFormat.underlineColor();
         if (uc.isValid())
             pen.setColor(uc);
 
         // Adapt wave to underlineOffset or pen width, whatever is larger, to make it work on all platforms
         const QPixmap wave = generateWavyPixmap(qMax(underlineOffset, pen.widthF()), pen);
-        const int descent = (int) ti.descent.toReal();
+        const int descent = (int) fe->descent().toReal();
 
         painter->setBrushOrigin(painter->brushOrigin().x(), 0);
-        painter->fillRect(pos.x(), 0, qCeil(ti.width.toReal()), qMin(wave.height(), descent), wave);
+        painter->fillRect(pos.x(), 0, qCeil(width), qMin(wave.height(), descent), wave);
         painter->restore();
     } else if (underlineStyle != QTextCharFormat::NoUnderline) {
         QLineF underLine(line.x1(), underlinePos, line.x2(), underlinePos);
 
-        QColor uc = ti.charFormat.underlineColor();
+        QColor uc = charFormat.underlineColor();
         if (uc.isValid())
             pen.setColor(uc);
 
@@ -6348,14 +6361,14 @@ static void drawTextItemDecoration(QPainter *painter, const QPointF &pos, const
     pen.setStyle(Qt::SolidLine);
     pen.setColor(oldPen.color());
 
-    if (ti.flags & QTextItem::StrikeOut) {
+    if (flags & QTextItem::StrikeOut) {
         QLineF strikeOutLine = line;
         strikeOutLine.translate(0., - fe->ascent().toReal() / 3.);
         painter->setPen(pen);
         painter->drawLine(strikeOutLine);
     }
 
-    if (ti.flags & QTextItem::Overline) {
+    if (flags & QTextItem::Overline) {
         QLineF overLine = line;
         overLine.translate(0., - fe->ascent().toReal());
         painter->setPen(pen);
@@ -6366,6 +6379,50 @@ static void drawTextItemDecoration(QPainter *painter, const QPointF &pos, const
     painter->setBrush(oldBrush);
 }
 
+static void drawDecorationForGlyphs(QPainter *painter, const glyph_t *glyphArray,
+                                    const QFixedPoint *positions, int glyphCount,
+                                    QFontEngine *fontEngine, const QFont &font,
+                                    const QTextCharFormat &charFormat)
+{
+    if (!(font.underline() || font.strikeOut() || font.overline()))
+        return;
+
+    QFixed leftMost;
+    QFixed rightMost;
+    QFixed baseLine;
+    for (int i=0; i<glyphCount; ++i) {
+        glyph_metrics_t gm = fontEngine->boundingBox(glyphArray[i]);
+        if (i == 0 || leftMost > positions[i].x)
+            leftMost = positions[i].x;
+
+        // We don't support glyphs that do not share a common baseline. If this turns out to
+        // be a relevant use case, then we need to find clusters of glyphs that share a baseline
+        // and do a drawTextItemDecorations call per cluster.
+        if (i == 0 || baseLine < positions[i].y)
+            baseLine = positions[i].y;
+
+        // We use the advance rather than the actual bounds to match the algorithm in drawText()
+        if (i == 0 || rightMost < positions[i].x + gm.xoff)
+            rightMost = positions[i].x + gm.xoff;
+    }
+
+    QFixed width = rightMost - leftMost;
+    QTextItem::RenderFlags flags = 0;
+
+    if (font.underline())
+        flags |= QTextItem::Underline;
+    if (font.overline())
+        flags |= QTextItem::Overline;
+    if (font.strikeOut())
+        flags |= QTextItem::StrikeOut;
+
+    drawTextItemDecoration(painter, QPointF(leftMost.toReal(), baseLine.toReal()),
+                           fontEngine,
+                           font.underline() ? QTextCharFormat::SingleUnderline
+                                            : QTextCharFormat::NoUnderline, flags,
+                           width.toReal(), charFormat);
+}
+
 void QPainter::drawTextItem(const QPointF &p, const QTextItem &_ti)
 {
 #ifdef QT_DEBUG_DRAW
@@ -6496,7 +6553,8 @@ void QPainter::drawTextItem(const QPointF &p, const QTextItem &_ti)
         else
             d->engine->drawTextItem(p, ti);
     }
-    drawTextItemDecoration(this, p, ti);
+    drawTextItemDecoration(this, p, ti.fontEngine, ti.underlineStyle, ti.flags, ti.width.toReal(),
+                           ti.charFormat);
 
     if (d->state->renderHints != oldRenderHints) {
         d->state->renderHints = oldRenderHints;
diff --git a/src/gui/painting/qwindowsurface_s60.cpp b/src/gui/painting/qwindowsurface_s60.cpp
index 477bd93..8bac1f5 100644
--- a/src/gui/painting/qwindowsurface_s60.cpp
+++ b/src/gui/painting/qwindowsurface_s60.cpp
@@ -67,10 +67,14 @@ QS60WindowSurface::QS60WindowSurface(QWidget* widget)
 
     TDisplayMode mode = S60->screenDevice()->DisplayMode();
     bool isOpaque = qt_widget_private(widget)->isOpaque;
-    if (mode == EColor16MA && isOpaque)
-        mode = EColor16MU; // Faster since 16MU -> 16MA is typically accelerated
-    else if (mode == EColor16MU && !isOpaque)
-        mode = EColor16MA; // Try for transparency anyway
+    if (isOpaque) {
+        mode = EColor16MU;
+    } else  {
+        if (QSysInfo::symbianVersion() >= QSysInfo::SV_SF_3)
+            mode = Q_SYMBIAN_ECOLOR16MAP; // Symbian^3 WServ has support for ARGB32_PRE
+        else
+            mode = EColor16MA; // Symbian prior to Symbian^3 sw accelerates EColor16MA
+    }
 
     // We create empty CFbsBitmap here -> it will be resized in setGeometry
     CFbsBitmap *bitmap = q_check_ptr(new CFbsBitmap);	// CBase derived object needs check on new
diff --git a/src/gui/s60framework/qs60mainapplication.cpp b/src/gui/s60framework/qs60mainapplication.cpp
index 0f9367e..5d4c54e 100644
--- a/src/gui/s60framework/qs60mainapplication.cpp
+++ b/src/gui/s60framework/qs60mainapplication.cpp
@@ -136,16 +136,25 @@ TFileName QS60MainApplication::ResourceFileName() const
     return KNullDesC();
 }
 
+/*!
+  \internal
+*/
 void QS60MainApplication::PreDocConstructL()
 {
     QS60MainApplicationBase::PreDocConstructL();
 }
 
+/*!
+  \internal
+*/
 CDictionaryStore *QS60MainApplication::OpenIniFileLC(RFs &aFs) const
 {
     return QS60MainApplicationBase::OpenIniFileLC(aFs);
 }
 
+/*!
+  \internal
+*/
 void QS60MainApplication::NewAppServerL(CApaAppServer *&aAppServer)
 {
     QS60MainApplicationBase::NewAppServerL(aAppServer);
diff --git a/src/gui/s60framework/qs60mainappui.cpp b/src/gui/s60framework/qs60mainappui.cpp
index 40c2d03..ea9dbb3 100644
--- a/src/gui/s60framework/qs60mainappui.cpp
+++ b/src/gui/s60framework/qs60mainappui.cpp
@@ -281,76 +281,121 @@ void QS60MainAppUi::RestoreMenuL(CCoeControl *menuWindow, TInt resourceId, TMenu
     }
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::Exit()
 {
     QS60MainAppUiBase::Exit();
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::SetFadedL(TBool aFaded)
 {
     QS60MainAppUiBase::SetFadedL(aFaded);
 }
 
+/*!
+  \internal
+*/
 TRect QS60MainAppUi::ApplicationRect() const
 {
     return QS60MainAppUiBase::ApplicationRect();
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::HandleScreenDeviceChangedL()
 {
     QS60MainAppUiBase::HandleScreenDeviceChangedL();
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::HandleApplicationSpecificEventL(TInt aType, const TWsEvent &aEvent)
 {
     QS60MainAppUiBase::HandleApplicationSpecificEventL(aType, aEvent);
 }
 
+/*!
+  \internal
+*/
 TTypeUid::Ptr QS60MainAppUi::MopSupplyObject(TTypeUid aId)
 {
     return QS60MainAppUiBase::MopSupplyObject(aId);
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::ProcessCommandL(TInt aCommand)
 {
     QS60MainAppUiBase::ProcessCommandL(aCommand);
 }
 
+/*!
+  \internal
+*/
 TErrorHandlerResponse QS60MainAppUi::HandleError (TInt aError, const SExtendedError &aExtErr, TDes &aErrorText, TDes &aContextText)
 {
     return QS60MainAppUiBase::HandleError(aError, aExtErr, aErrorText, aContextText);
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::HandleViewDeactivation(const TVwsViewId &aViewIdToBeDeactivated, const TVwsViewId &aNewlyActivatedViewId)
 {
     QS60MainAppUiBase::HandleViewDeactivation(aViewIdToBeDeactivated, aNewlyActivatedViewId);
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::PrepareToExit()
 {
     QS60MainAppUiBase::PrepareToExit();
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::HandleTouchPaneSizeChange()
 {
     QS60MainAppUiBase::HandleTouchPaneSizeChange();
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::HandleSystemEventL(const TWsEvent &aEvent)
 {
     QS60MainAppUiBase::HandleSystemEventL(aEvent);
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::Reserved_MtsmPosition()
 {
     QS60MainAppUiBase::Reserved_MtsmPosition();
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::Reserved_MtsmObject()
 {
     QS60MainAppUiBase::Reserved_MtsmObject();
 }
 
+/*!
+  \internal
+*/
 void QS60MainAppUi::HandleForegroundEventL(TBool aForeground)
 {
     QS60MainAppUiBase::HandleForegroundEventL(aForeground);
diff --git a/src/gui/styles/qmacstyle_mac.mm b/src/gui/styles/qmacstyle_mac.mm
index ae90d26..671a888 100644
--- a/src/gui/styles/qmacstyle_mac.mm
+++ b/src/gui/styles/qmacstyle_mac.mm
@@ -1440,6 +1440,9 @@ QMacStylePrivate::QMacStylePrivate(QMacStyle *style)
 
 bool QMacStylePrivate::animatable(QMacStylePrivate::Animates as, const QWidget *w) const
 {
+    if (!w)
+        return false;
+
     if (as == AquaPushButton) {
         QPushButton *pb = const_cast<QPushButton *>(static_cast<const QPushButton *>(w));
         if (w->window()->isActiveWindow() && pb && !mouseDown) {
diff --git a/src/gui/styles/qstyle.cpp b/src/gui/styles/qstyle.cpp
index 687e587..0a75492 100644
--- a/src/gui/styles/qstyle.cpp
+++ b/src/gui/styles/qstyle.cpp
@@ -325,7 +325,7 @@ static int unpackControlTypes(QSizePolicy::ControlTypes controls, QSizePolicy::C
     control over size of header items and row and column sizes.
 
     \sa QStyleOption, QStylePainter, {Styles Example},
-        {Styles &amp Style Aware Widgets}, QStyledItemDelegate
+        {Styles and Style Aware Widgets}, QStyledItemDelegate
 */
 
 /*!
diff --git a/src/gui/text/qstatictext.cpp b/src/gui/text/qstatictext.cpp
index 7396bcd..21c2e02 100644
--- a/src/gui/text/qstatictext.cpp
+++ b/src/gui/text/qstatictext.cpp
@@ -109,10 +109,18 @@ QT_BEGIN_NAMESPACE
     QPainter::drawStaticText() and can change from call to call with a minimal impact on
     performance.
 
-    QStaticText will attempt to guess the format of the input text using Qt::mightBeRichText().
-    To force QStaticText to display its contents as either plain text or rich text, use the
-    function QStaticText::setTextFormat() and pass in, respectively, Qt::PlainText and
-    Qt::RichText.
+    For extra convenience, it is possible to apply formatting to the text using the HTML subset
+    supported by QTextDocument. QStaticText will attempt to guess the format of the input text using
+    Qt::mightBeRichText(), and interpret it as rich text if this function returns true. To force
+    QStaticText to display its contents as either plain text or rich text, use the function
+    QStaticText::setTextFormat() and pass in, respectively, Qt::PlainText and Qt::RichText.
+
+    QStaticText can only represent text, so only HTML tags which alter the layout or appearance of
+    the text will be respected. Adding an image to the input HTML, for instance, will cause the
+    image to be included as part of the layout, affecting the positions of the text glyphs, but it
+    will not be displayed. The result will be an empty area the size of the image in the output.
+    Similarly, using tables will cause the text to be laid out in table format, but the borders
+    will not be drawn.
 
     If it's the first time the static text is drawn, or if the static text, or the painter's font
     has been altered since the last time it was drawn, the text's layout has to be
diff --git a/src/gui/text/qtextengine.cpp b/src/gui/text/qtextengine.cpp
index 439f2a4..5670e29 100644
--- a/src/gui/text/qtextengine.cpp
+++ b/src/gui/text/qtextengine.cpp
@@ -923,6 +923,13 @@ void QTextEngine::shapeText(int item) const
         si.width += glyphs.advances_x[i];
 }
 
+static inline bool hasCaseChange(const QScriptItem &si)
+{
+    return si.analysis.flags == QScriptAnalysis::SmallCaps ||
+           si.analysis.flags == QScriptAnalysis::Uppercase ||
+           si.analysis.flags == QScriptAnalysis::Lowercase;
+}
+
 #if defined(Q_WS_WINCE) //TODO
 // set the glyph attributes heuristically. Assumes a 1 to 1 relationship between chars and glyphs
 // and no reordering.
@@ -1050,14 +1057,15 @@ void QTextEngine::shapeTextWithCE(int item) const
     if (option.useDesignMetrics())
 	flags |= DesignMetrics;
 
-    attributes(); // pre-initialize char attributes
+    // pre-initialize char attributes
+    if (! attributes())
+        return;
 
     const int len = length(item);
     int num_glyphs = length(item);
     const QChar *str = layoutData->string.unicode() + si.position;
     ushort upperCased[256];
-    if (si.analysis.flags == QScriptAnalysis::SmallCaps || si.analysis.flags == QScriptAnalysis::Uppercase
-            || si.analysis.flags == QScriptAnalysis::Lowercase) {
+    if (hasCaseChange(si)) {
         ushort *uc = upperCased;
         if (len > 256)
             uc = new ushort[len];
@@ -1071,7 +1079,14 @@ void QTextEngine::shapeTextWithCE(int item) const
     }
 
     while (true) {
-        ensureSpace(num_glyphs);
+        if (! ensureSpace(num_glyphs)) {
+            // If str is converted to uppercase/lowercase form with a new buffer,
+            // we need to delete that buffer before return for error
+            const ushort *uc = reinterpret_cast<const ushort *>(str);
+            if (hasCaseChange(si) && uc != upperCased)
+                delete [] uc;
+            return;
+        }
         num_glyphs = layoutData->glyphLayout.numGlyphs - layoutData->used;
 
         QGlyphLayout g = availableGlyphs(&si);
@@ -1092,9 +1107,7 @@ void QTextEngine::shapeTextWithCE(int item) const
     layoutData->used += si.num_glyphs;
 
     const ushort *uc = reinterpret_cast<const ushort *>(str);
-    if ((si.analysis.flags == QScriptAnalysis::SmallCaps || si.analysis.flags == QScriptAnalysis::Uppercase
-         || si.analysis.flags == QScriptAnalysis::Lowercase)
-        && uc != upperCased)
+    if (hasCaseChange(si) && uc != upperCased)
         delete [] uc;
 }
 #endif
@@ -1133,8 +1146,7 @@ void QTextEngine::shapeTextWithHarfbuzz(int item) const
     entire_shaper_item.item.bidiLevel = si.analysis.bidiLevel;
 
     HB_UChar16 upperCased[256]; // XXX what about making this 4096, so we don't have to extend it ever.
-    if (si.analysis.flags == QScriptAnalysis::SmallCaps || si.analysis.flags == QScriptAnalysis::Uppercase
-            || si.analysis.flags == QScriptAnalysis::Lowercase) {
+    if (hasCaseChange(si)) {
         HB_UChar16 *uc = upperCased;
         if (entire_shaper_item.item.length > 256)
             uc = new HB_UChar16[entire_shaper_item.item.length];
@@ -1156,17 +1168,24 @@ void QTextEngine::shapeTextWithHarfbuzz(int item) const
         entire_shaper_item.shaperFlags |= HB_ShaperFlag_UseDesignMetrics;
 
     entire_shaper_item.num_glyphs = qMax(layoutData->glyphLayout.numGlyphs - layoutData->used, int(entire_shaper_item.item.length));
-    ensureSpace(entire_shaper_item.num_glyphs);
+    if (! ensureSpace(entire_shaper_item.num_glyphs)) {
+        if (hasCaseChange(si))
+            delete [] const_cast<HB_UChar16 *>(entire_shaper_item.string);
+        return;
+    }
     QGlyphLayout initialGlyphs = availableGlyphs(&si).mid(0, entire_shaper_item.num_glyphs);
 
     if (!stringToGlyphs(&entire_shaper_item, &initialGlyphs, font)) {
-        ensureSpace(entire_shaper_item.num_glyphs);
+        if (! ensureSpace(entire_shaper_item.num_glyphs)) {
+            if (hasCaseChange(si))
+                delete [] const_cast<HB_UChar16 *>(entire_shaper_item.string);
+            return;
+        }
         initialGlyphs = availableGlyphs(&si).mid(0, entire_shaper_item.num_glyphs);
 
         if (!stringToGlyphs(&entire_shaper_item, &initialGlyphs, font)) {
             // ############ if this happens there's a bug in the fontengine
-            if ((si.analysis.flags == QScriptAnalysis::SmallCaps || si.analysis.flags == QScriptAnalysis::Uppercase
-                    || si.analysis.flags == QScriptAnalysis::Lowercase) && entire_shaper_item.string != upperCased)
+            if (hasCaseChange(si) && entire_shaper_item.string != upperCased)
                 delete [] const_cast<HB_UChar16 *>(entire_shaper_item.string);
             return;
         }
@@ -1231,7 +1250,11 @@ void QTextEngine::shapeTextWithHarfbuzz(int item) const
         remaining_glyphs -= shaper_item.initialGlyphCount;
 
         do {
-            ensureSpace(glyph_pos + shaper_item.num_glyphs + remaining_glyphs);
+            if (! ensureSpace(glyph_pos + shaper_item.num_glyphs + remaining_glyphs)) {
+                if (hasCaseChange(si))
+                    delete [] const_cast<HB_UChar16 *>(entire_shaper_item.string);
+                return;
+            }
 
             const QGlyphLayout g = availableGlyphs(&si).mid(glyph_pos);
             moveGlyphData(g.mid(shaper_item.num_glyphs), g.mid(shaper_item.initialGlyphCount), remaining_glyphs);
@@ -1271,8 +1294,7 @@ void QTextEngine::shapeTextWithHarfbuzz(int item) const
 
     layoutData->used += si.num_glyphs;
 
-    if ((si.analysis.flags == QScriptAnalysis::SmallCaps || si.analysis.flags == QScriptAnalysis::Uppercase)
-        && entire_shaper_item.string != upperCased)
+    if (hasCaseChange(si) && entire_shaper_item.string != upperCased)
         delete [] const_cast<HB_UChar16 *>(entire_shaper_item.string);
 }
 
@@ -1317,7 +1339,8 @@ const HB_CharAttributes *QTextEngine::attributes() const
         return (HB_CharAttributes *) layoutData->memory;
 
     itemize();
-    ensureSpace(layoutData->string.length());
+    if (! ensureSpace(layoutData->string.length()))
+        return NULL;
 
     QVarLengthArray<HB_ScriptItem> hbScriptItems(layoutData->items.size());
 
@@ -1864,7 +1887,10 @@ void QTextEngine::justify(const QScriptLine &line)
 
     // don't include trailing white spaces when doing justification
     int line_length = line.length;
-    const HB_CharAttributes *a = attributes()+line.from;
+    const HB_CharAttributes *a = attributes();
+    if (! a)
+        return;
+    a += line.from;
     while (line_length && a[line_length-1].whiteSpace)
         --line_length;
     // subtract one char more, as we can't justfy after the last character
@@ -2045,7 +2071,7 @@ QTextEngine::LayoutData::LayoutData()
     memory_on_stack = false;
     used = 0;
     hasBidi = false;
-    inLayout = false;
+    layoutState = LayoutEmpty;
     haveCharAttributes = false;
     logClustersPtr = 0;
     available_glyphs = 0;
@@ -2079,7 +2105,7 @@ QTextEngine::LayoutData::LayoutData(const QString &str, void **stack_memory, int
     }
     used = 0;
     hasBidi = false;
-    inLayout = false;
+    layoutState = LayoutEmpty;
     haveCharAttributes = false;
 }
 
@@ -2090,12 +2116,12 @@ QTextEngine::LayoutData::~LayoutData()
     memory = 0;
 }
 
-void QTextEngine::LayoutData::reallocate(int totalGlyphs)
+bool QTextEngine::LayoutData::reallocate(int totalGlyphs)
 {
     Q_ASSERT(totalGlyphs >= glyphLayout.numGlyphs);
     if (memory_on_stack && available_glyphs >= totalGlyphs) {
         glyphLayout.grow(glyphLayout.data(), totalGlyphs);
-        return;
+        return true;
     }
 
     int space_charAttributes = sizeof(HB_CharAttributes)*string.length()/sizeof(void*) + 1;
@@ -2103,7 +2129,14 @@ void QTextEngine::LayoutData::reallocate(int totalGlyphs)
     int space_glyphs = QGlyphLayout::spaceNeededForGlyphLayout(totalGlyphs)/sizeof(void*) + 2;
 
     int newAllocated = space_charAttributes + space_glyphs + space_logClusters;
-    Q_ASSERT(newAllocated >= allocated);
+    // These values can be negative if the length of string/glyphs causes overflow,
+    // we can't layout such a long string all at once, so return false here to
+    // indicate there is a failure
+    if (space_charAttributes < 0 || space_logClusters < 0 || space_glyphs < 0 || newAllocated < allocated) {
+        layoutState = LayoutFailed;
+        return false;
+    }
+
     void **newMem = memory;
     newMem = (void **)::realloc(memory_on_stack ? 0 : memory, newAllocated*sizeof(void *));
     Q_CHECK_PTR(newMem);
@@ -2124,6 +2157,7 @@ void QTextEngine::LayoutData::reallocate(int totalGlyphs)
     glyphLayout.grow(reinterpret_cast<char *>(m), totalGlyphs);
 
     allocated = newAllocated;
+    return true;
 }
 
 // grow to the new size, copying the existing data to the new layout
@@ -2155,7 +2189,7 @@ void QTextEngine::freeMemory()
     } else {
         layoutData->used = 0;
         layoutData->hasBidi = false;
-        layoutData->inLayout = false;
+        layoutData->layoutState = LayoutEmpty;
         layoutData->haveCharAttributes = false;
     }
     for (int i = 0; i < lines.size(); ++i) {
@@ -2314,6 +2348,9 @@ QString QTextEngine::elidedText(Qt::TextElideMode mode, const QFixed &width, int
                 shape(i);
 
             HB_CharAttributes *attributes = const_cast<HB_CharAttributes *>(this->attributes());
+            if (!attributes)
+                return QString();
+
             unsigned short *logClusters = this->logClusters(&si);
             QGlyphLayout glyphs = shapedGlyphs(&si);
 
@@ -2385,6 +2422,8 @@ QString QTextEngine::elidedText(Qt::TextElideMode mode, const QFixed &width, int
         return QString();
 
     const HB_CharAttributes *attributes = this->attributes();
+    if (!attributes)
+        return QString();
 
     if (mode == Qt::ElideRight) {
         QFixed currentWidth;
diff --git a/src/gui/text/qtextengine_p.h b/src/gui/text/qtextengine_p.h
index e623fa5..4cbe81f 100644
--- a/src/gui/text/qtextengine_p.h
+++ b/src/gui/text/qtextengine_p.h
@@ -416,6 +416,11 @@ class QTextFormatCollection;
 
 class Q_GUI_EXPORT QTextEngine {
 public:
+    enum LayoutState {
+        LayoutEmpty,
+        InLayout,
+        LayoutFailed,
+    };
     struct LayoutData {
         LayoutData(const QString &str, void **stack_memory, int mem_size);
         LayoutData();
@@ -428,11 +433,11 @@ public:
         QGlyphLayout glyphLayout;
         mutable int used;
         uint hasBidi : 1;
-        uint inLayout : 1;
+        uint layoutState : 2;
         uint memory_on_stack : 1;
         bool haveCharAttributes;
         QString string;
-        void reallocate(int totalGlyphs);
+        bool reallocate(int totalGlyphs);
     };
 
     QTextEngine(LayoutData *data);
@@ -520,9 +525,10 @@ public:
         return layoutData->glyphLayout.mid(si->glyph_data_offset, si->num_glyphs);
     }
 
-    inline void ensureSpace(int nGlyphs) const {
+    inline bool ensureSpace(int nGlyphs) const {
         if (layoutData->glyphLayout.numGlyphs - layoutData->used < nGlyphs)
-            layoutData->reallocate((((layoutData->used + nGlyphs)*3/2 + 15) >> 4) << 4);
+            return layoutData->reallocate((((layoutData->used + nGlyphs)*3/2 + 15) >> 4) << 4);
+        return true;
     }
 
     void freeMemory();
diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp
index 674064e..7d5fa43 100644
--- a/src/gui/text/qtextlayout.cpp
+++ b/src/gui/text/qtextlayout.cpp
@@ -74,6 +74,8 @@ static inline QFixed leadingSpaceWidth(QTextEngine *eng, const QScriptLine &line
 
     int pos = line.length;
     const HB_CharAttributes *attributes = eng->attributes();
+    if (!attributes)
+        return QFixed();
     while (pos > 0 && attributes[line.from + pos - 1].whiteSpace)
         --pos;
     return eng->width(line.from + pos, line.length - pos);
@@ -601,7 +603,7 @@ bool QTextLayout::cacheEnabled() const
 void QTextLayout::beginLayout()
 {
 #ifndef QT_NO_DEBUG
-    if (d->layoutData && d->layoutData->inLayout) {
+    if (d->layoutData && d->layoutData->layoutState == QTextEngine::InLayout) {
         qWarning("QTextLayout::beginLayout: Called while already doing layout");
         return;
     }
@@ -609,7 +611,7 @@ void QTextLayout::beginLayout()
     d->invalidate();
     d->clearLineData();
     d->itemize();
-    d->layoutData->inLayout = true;
+    d->layoutData->layoutState = QTextEngine::InLayout;
 }
 
 /*!
@@ -618,7 +620,7 @@ void QTextLayout::beginLayout()
 void QTextLayout::endLayout()
 {
 #ifndef QT_NO_DEBUG
-    if (!d->layoutData || !d->layoutData->inLayout) {
+    if (!d->layoutData || d->layoutData->layoutState == QTextEngine::LayoutEmpty) {
         qWarning("QTextLayout::endLayout: Called without beginLayout()");
         return;
     }
@@ -627,7 +629,7 @@ void QTextLayout::endLayout()
     if (l && d->lines.at(l-1).length < 0) {
         QTextLine(l-1, d).setNumColumns(INT_MAX);
     }
-    d->layoutData->inLayout = false;
+    d->layoutData->layoutState = QTextEngine::LayoutEmpty;
     if (!d->cacheGlyphs)
         d->freeMemory();
 }
@@ -757,11 +759,14 @@ bool QTextLayout::isValidCursorPosition(int pos) const
 QTextLine QTextLayout::createLine()
 {
 #ifndef QT_NO_DEBUG
-    if (!d->layoutData || !d->layoutData->inLayout) {
+    if (!d->layoutData || d->layoutData->layoutState == QTextEngine::LayoutEmpty) {
         qWarning("QTextLayout::createLine: Called without layouting");
         return QTextLine();
     }
 #endif
+    if (d->layoutData->layoutState == QTextEngine::LayoutFailed)
+        return QTextLine();
+
     int l = d->lines.size();
     if (l && d->lines.at(l-1).length < 0) {
         QTextLine(l-1, d).setNumColumns(INT_MAX);
@@ -1704,14 +1709,18 @@ namespace {
             return glyphs.glyphs[logClusters[currentPosition - 1]];
         }
 
+        inline void adjustRightBearing(glyph_t glyph)
+        {
+            qreal rb;
+            fontEngine->getGlyphBearings(glyph, 0, &rb);
+            rightBearing = qMin(QFixed(), QFixed::fromReal(rb));
+        }
+
         inline void adjustRightBearing()
         {
             if (currentPosition <= 0)
                 return;
-
-            qreal rb;
-            fontEngine->getGlyphBearings(currentGlyph(), 0, &rb);
-            rightBearing = qMin(QFixed(), QFixed::fromReal(rb));
+            adjustRightBearing(currentGlyph());
         }
 
         inline void resetRightBearing()
@@ -1801,6 +1810,8 @@ void QTextLine::layout_helper(int maxGlyphs)
     Qt::Alignment alignment = eng->option.alignment();
 
     const HB_CharAttributes *attributes = eng->attributes();
+    if (!attributes)
+        return;
     lbh.currentPosition = line.from;
     int end = 0;
     lbh.logClusters = eng->layoutData->logClustersPtr;
@@ -1814,6 +1825,8 @@ void QTextLine::layout_helper(int maxGlyphs)
             if (!current.num_glyphs) {
                 eng->shape(item);
                 attributes = eng->attributes();
+                if (!attributes)
+                    return;
                 lbh.logClusters = eng->layoutData->logClustersPtr;
             }
             lbh.currentPosition = qMax(line.from, current.position);
@@ -1892,6 +1905,9 @@ void QTextLine::layout_helper(int maxGlyphs)
         } else {
             lbh.whiteSpaceOrObject = false;
             bool sb_or_ws = false;
+            glyph_t previousGlyph = 0;
+            if (lbh.currentPosition > 0 && lbh.logClusters[lbh.currentPosition - 1] <lbh.glyphs.numGlyphs)
+                previousGlyph = lbh.currentGlyph(); // needed to calculate right bearing later
             do {
                 addNextCluster(lbh.currentPosition, end, lbh.tmpData, lbh.glyphCount,
                                current, lbh.logClusters, lbh.glyphs);
@@ -1935,9 +1951,17 @@ void QTextLine::layout_helper(int maxGlyphs)
             // We ignore the right bearing if the minimum negative bearing is too little to
             // expand the text beyond the edge.
             if (sb_or_ws|breakany) {
+                QFixed rightBearing = lbh.rightBearing; // store previous right bearing
+#if !defined(Q_WS_MAC)
                 if (lbh.calculateNewWidth(line) - lbh.minimumRightBearing > line.width)
+#endif
                     lbh.adjustRightBearing();
                 if (lbh.checkFullOtherwiseExtend(line)) {
+                    // we are too wide, fix right bearing
+                    if (rightBearing <= 0)
+                        lbh.rightBearing = rightBearing; // take from cache
+                    else if (previousGlyph > 0)
+                        lbh.adjustRightBearing(previousGlyph);
                     if (!breakany) {
                         line.textWidth += lbh.softHyphenWidth;
                     }
diff --git a/src/gui/widgets/qcombobox.cpp b/src/gui/widgets/qcombobox.cpp
index dcc328f..917a325 100644
--- a/src/gui/widgets/qcombobox.cpp
+++ b/src/gui/widgets/qcombobox.cpp
@@ -910,7 +910,7 @@ QComboBox::QComboBox(bool rw, QWidget *parent, const char *name)
     interaction. The highlighted() signal is emitted when the user
     highlights an item in the combobox popup list. All three signals
     exist in two versions, one with a QString argument and one with an
-    \c int argument. If the user selectes or highlights a pixmap, only
+    \c int argument. If the user selects or highlights a pixmap, only
     the \c int signals are emitted. Whenever the text of an editable
     combobox is changed the editTextChanged() signal is emitted.
 
diff --git a/src/gui/widgets/qcommandlinkbutton.cpp b/src/gui/widgets/qcommandlinkbutton.cpp
index d3b5869..a6f5f7d 100644
--- a/src/gui/widgets/qcommandlinkbutton.cpp
+++ b/src/gui/widgets/qcommandlinkbutton.cpp
@@ -349,7 +349,7 @@ void QCommandLinkButton::paintEvent(QPaintEvent *)
     QStyleOptionButton option;
     initStyleOption(&option);
 
-    //Enable command link appearence on Vista
+    //Enable command link appearance on Vista
     option.features |= QStyleOptionButton::CommandLinkButton;
     option.text = QString();
     option.icon = QIcon(); //we draw this ourselves
diff --git a/src/gui/widgets/qdatetimeedit.cpp b/src/gui/widgets/qdatetimeedit.cpp
index 50fa9c9..7a61dc7 100644
--- a/src/gui/widgets/qdatetimeedit.cpp
+++ b/src/gui/widgets/qdatetimeedit.cpp
@@ -754,6 +754,7 @@ QCalendarWidget *QDateTimeEdit::calendarWidget() const
   Sets the given \a calendarWidget as the widget to be used for the calendar
   pop-up. The editor does not automatically take ownership of the calendar widget.
 
+  \note calendarPopup must be set to true before setting the calendar widget.
   \sa calendarPopup
 */
 void QDateTimeEdit::setCalendarWidget(QCalendarWidget *calendarWidget)
diff --git a/src/gui/widgets/qmainwindowlayout.cpp b/src/gui/widgets/qmainwindowlayout.cpp
index 593e391..62ee398 100644
--- a/src/gui/widgets/qmainwindowlayout.cpp
+++ b/src/gui/widgets/qmainwindowlayout.cpp
@@ -943,7 +943,7 @@ void QMainWindowLayout::toggleToolBarsVisible()
 #ifdef Q_WS_MAC
     if (layoutState.mainWindow->unifiedTitleAndToolBarOnMac()) {
         // If we hit this case, someone has pressed the "toolbar button" which will
-        // toggle the unified toolbar visiblity, because that's what the user wants.
+        // toggle the unified toolbar visibility, because that's what the user wants.
         // We might be in a situation where someone has hidden all the toolbars
         // beforehand (maybe in construction), but now they've hit this button and
         // and are expecting the items to show. What do we do?
diff --git a/src/gui/widgets/qmenu.cpp b/src/gui/widgets/qmenu.cpp
index 7941c4e..4bea6de 100644
--- a/src/gui/widgets/qmenu.cpp
+++ b/src/gui/widgets/qmenu.cpp
@@ -262,7 +262,7 @@ void QMenuPrivate::updateActionRects() const
     const int deskFw = style->pixelMetric(QStyle::PM_MenuDesktopFrameWidth, &opt, q);
     const int tearoffHeight = tearoff ? style->pixelMetric(QStyle::PM_MenuTearoffHeight, &opt, q) : 0;
 
-    //for compatability now - will have to refactor this away..
+    //for compatibility now - will have to refactor this away
     tabWidth = 0;
     maxIconWidth = 0;
     hasCheckableItems = false;
@@ -1154,7 +1154,7 @@ void QMenuPrivate::_q_actionHovered()
 
 bool QMenuPrivate::hasMouseMoved(const QPoint &globalPos)
 {
-    //determines if the mouse has moved (ie its intial position has
+    //determines if the mouse has moved (ie its initial position has
     //changed by more than QApplication::startDragDistance()
     //or if there were at least 6 mouse motions)
     return motions > 6 ||
diff --git a/src/gui/widgets/qmenubar.cpp b/src/gui/widgets/qmenubar.cpp
index e8e80b7..df16f7f 100644
--- a/src/gui/widgets/qmenubar.cpp
+++ b/src/gui/widgets/qmenubar.cpp
@@ -102,7 +102,7 @@ void QMenuBarExtension::paintEvent(QPaintEvent *)
     QStylePainter p(this);
     QStyleOptionToolButton opt;
     initStyleOption(&opt);
-    // We do not need to draw both extention arrows
+    // We do not need to draw both extension arrows
     opt.features &= ~QStyleOptionToolButton::HasMenu;
     p.drawComplexControl(QStyle::CC_ToolButton, opt);
 }
diff --git a/src/gui/widgets/qprintpreviewwidget.cpp b/src/gui/widgets/qprintpreviewwidget.cpp
index 45b15ef..ea311d3 100644
--- a/src/gui/widgets/qprintpreviewwidget.cpp
+++ b/src/gui/widgets/qprintpreviewwidget.cpp
@@ -469,7 +469,7 @@ void QPrintPreviewWidgetPrivate::setZoomFactor(qreal _zoomFactor)
     \o Create the QPrintPreviewWidget
 
     Construct the QPrintPreviewWidget either by passing in an
-    exisiting QPrinter object, or have QPrintPreviewWidget create a
+    existing QPrinter object, or have QPrintPreviewWidget create a
     default constructed QPrinter object for you.
 
     \o Connect the paintRequested() signal to a slot.
diff --git a/src/gui/widgets/qtoolbarextension.cpp b/src/gui/widgets/qtoolbarextension.cpp
index 032c6f0..574a775 100644
--- a/src/gui/widgets/qtoolbarextension.cpp
+++ b/src/gui/widgets/qtoolbarextension.cpp
@@ -75,7 +75,7 @@ void QToolBarExtension::paintEvent(QPaintEvent *)
     QStylePainter p(this);
     QStyleOptionToolButton opt;
     initStyleOption(&opt);
-    // We do not need to draw both extention arrows
+    // We do not need to draw both extension arrows
     opt.features &= ~QStyleOptionToolButton::HasMenu;
     p.drawComplexControl(QStyle::CC_ToolButton, opt);
 }