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

22 files changed, 724 insertions, 1103 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index e63acac..2b6aaf5 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -3706,6 +3706,8 @@ void QGraphicsItem::setPos(const QPointF &pos)
         d_ptr->setPosHelper(pos);
         if (d_ptr->isWidget)
             static_cast<QGraphicsWidget *>(this)->d_func()->setGeometryFromSetPos();
+        if (d_ptr->scenePosDescendants)
+            d_ptr->sendScenePosChange();
         return;
     }
 
@@ -4388,8 +4390,10 @@ void QGraphicsItem::setTransform(const QTransform &matrix, bool combine)
         return;
 
     // Update and set the new transformation.
-    if (!(d_ptr->flags & ItemSendsGeometryChanges)) {
+    if (!(d_ptr->flags & (ItemSendsGeometryChanges | ItemSendsScenePositionChanges))) {
         d_ptr->setTransformHelper(newTransform);
+        if (d_ptr->scenePosDescendants)
+            d_ptr->sendScenePosChange();
         return;
     }
 
diff --git a/src/gui/graphicsview/qgraphicslayoutitem.cpp b/src/gui/graphicsview/qgraphicslayoutitem.cpp
index ad4b2b5..e43f7fa 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>
 
@@ -259,6 +260,52 @@ 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/qgridlayoutengine.cpp b/src/gui/graphicsview/qgridlayoutengine.cpp
index ae5bf90..e486b4d 100644
--- a/src/gui/graphicsview/qgridlayoutengine.cpp
+++ b/src/gui/graphicsview/qgridlayoutengine.cpp
@@ -545,6 +545,24 @@ 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 +631,17 @@ QRectF QGridLayoutItem::geometryWithin(qreal x, qreal y, qreal width, qreal heig
         qreal cellWidth = width;
         qreal cellHeight = height;
 
-        QSizeF size = effectiveMaxSize().boundedTo(QSizeF(cellWidth, cellHeight));
+
+        QSizeF size = effectiveMaxSize(QSizeF(-1,-1));
+        if (hasDynamicConstraint()) {
+            if (dynamicConstraintOrientation() == Qt::Vertical) {
+               if (size.width() > cellWidth)
+                   size = effectiveMaxSize(QSizeF(cellWidth, -1));
+            } else if(size.height() > cellHeight) {
+                size = effectiveMaxSize(QSizeF(-1, cellHeight));
+            }
+        }
+        size = size.boundedTo(QSizeF(cellWidth, cellHeight));
         width = size.width();
         height = size.height();
 
@@ -675,13 +703,13 @@ 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 +717,7 @@ QSizeF QGridLayoutItem::effectiveMaxSize() const
     }
 
     if (!size.isValid()) {
-        QSizeF maxSize = layoutItem()->effectiveSizeHint(Qt::MaximumSize);
+        QSizeF maxSize = layoutItem()->effectiveSizeHint(Qt::MaximumSize, size);
         if (size.width() == -1)
             size.setWidth(maxSize.width());
         if (size.height() == -1)
@@ -1010,6 +1038,7 @@ 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)
@@ -1074,19 +1103,78 @@ 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);
+    QGridLayoutBox sizehint_totalBoxes[NOrientations];
+
+    if(rowCount() < 1 || columnCount() < 1 || !hasDynamicConstraint()) {
+        //No items with height for width, so it doesn't matter which order we do these in
+        if(q_cachedDataForStyleInfo != styleInfo) {
+            ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], styleInfo, NULL, NULL, Qt::Horizontal);
+            ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], styleInfo, NULL, NULL, Qt::Vertical);
+        } else {
+            sizehint_totalBoxes[Hor] = q_totalBoxes[Hor];
+            sizehint_totalBoxes[Ver] = q_totalBoxes[Ver];
+        }
+    } else if(constraintOrientation() == Qt::Vertical) {
+        //We have items whose width depends on their height
+        if(q_cachedDataForStyleInfo != styleInfo)
+            ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], styleInfo, NULL, NULL, Qt::Horizontal);
+        else
+            sizehint_totalBoxes[Hor] = q_totalBoxes[Hor];
+        QVector<qreal> sizehint_xx;
+        QVector<qreal> sizehint_widths;
+
+        sizehint_xx.resize(columnCount());
+        sizehint_widths.resize(columnCount());
+        qreal width = constraint.width();
+        if(width < 0) {
+            /* It's not obvious what the behaviour should be. */
+/*            if(which == Qt::MaximumSize)
+                width = sizehint_totalBoxes[Hor].q_maximumSize;
+            else if(which == Qt::MinimumSize)
+                width = sizehint_totalBoxes[Hor].q_minimumSize;
+            else*/
+                width = sizehint_totalBoxes[Hor].q_preferredSize;
+        }
+        //Calculate column widths and positions, and put results in q_xx.data() and q_widths.data() so that we can use this information as
+        //constraints to find the row heights
+        q_columnData.calculateGeometries(0, columnCount(), width, sizehint_xx.data(), sizehint_widths.data(),
+                0, sizehint_totalBoxes[Hor]);
+        ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], styleInfo, sizehint_xx.data(), sizehint_widths.data(), Qt::Vertical);
+    } else {
+        //We have items whose height depends on their width
+        ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], styleInfo, NULL, NULL, Qt::Vertical);
+        QVector<qreal> sizehint_yy;
+        QVector<qreal> sizehint_heights;
+
+        sizehint_yy.resize(rowCount());
+        sizehint_heights.resize(rowCount());
+        qreal height = constraint.height();
+        if(height < 0) {
+/*            if(which == Qt::MaximumSize)
+                height = sizehint_totalBoxes[Ver].q_maximumSize;
+            else if(which == Qt::MinimumSize)
+                height = sizehint_totalBoxes[Ver].q_minimumSize;
+            else*/
+                height = sizehint_totalBoxes[Ver].q_preferredSize;
+        }
+        //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data() so that we can use this information as
+        //constraints to find the column widths
+        q_rowData.calculateGeometries(0, rowCount(), height, sizehint_yy.data(), sizehint_heights.data(),
+                0, sizehint_totalBoxes[Ver]);
+        ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], styleInfo, sizehint_yy.data(), sizehint_heights.data(), Qt::Vertical);
+    }
 
     switch (which) {
     case Qt::MinimumSize:
-        return QSizeF(q_totalBoxes[Hor].q_minimumSize, q_totalBoxes[Ver].q_minimumSize);
+        return QSizeF(sizehint_totalBoxes[Hor].q_minimumSize, sizehint_totalBoxes[Ver].q_minimumSize);
     case Qt::PreferredSize:
-        return QSizeF(q_totalBoxes[Hor].q_preferredSize, q_totalBoxes[Ver].q_preferredSize);
+        return QSizeF(sizehint_totalBoxes[Hor].q_preferredSize, sizehint_totalBoxes[Ver].q_preferredSize);
     case Qt::MaximumSize:
-        return QSizeF(q_totalBoxes[Hor].q_maximumSize, q_totalBoxes[Ver].q_maximumSize);
+        return QSizeF(sizehint_totalBoxes[Hor].q_maximumSize, sizehint_totalBoxes[Ver].q_maximumSize);
     case Qt::MinimumDescent:
-        return QSizeF(-1.0, q_totalBoxes[Hor].q_minimumDescent);    // ### doesn't work
+        return QSizeF(-1.0, sizehint_totalBoxes[Hor].q_minimumDescent);    // ### doesn't work
     default:
         break;
     }
@@ -1262,6 +1350,7 @@ void QGridLayoutEngine::insertOrRemoveRows(int row, int delta, Qt::Orientation o
 }
 
 void QGridLayoutEngine::fillRowData(QGridLayoutRowData *rowData, const QLayoutStyleInfo &styleInfo,
+                                    qreal *colPositions, qreal *colSizes,
                                     Qt::Orientation orientation) const
 {
     const int ButtonMask = QSizePolicy::ButtonBox | QSizePolicy::PushButton;
@@ -1375,7 +1464,21 @@ void QGridLayoutEngine::fillRowData(QGridLayoutRowData *rowData, const QLayoutSt
                         box = &multiCell.q_box;
                         multiCell.q_stretch = itemStretch;
                     }
-                    box->combine(item->box(orientation));
+                    // Items with constraints need to be passed the constraint
+                    if (colSizes && colPositions && item->hasDynamicConstraint() && orientation == item->dynamicConstraintOrientation()) {
+                        /* Get the width of the item by summing up the widths of the columns that it spans.
+                         * We need to have already calculated the widths of the columns by calling
+                         * q_columns->calculateGeometries() before hand and passing the value in the colSizes
+                         * and colPositions parameters.
+                         * The variable name is still colSizes even when it actually has the row sizes
+                         */
+                        qreal length = colSizes[item->lastColumn(orientation)];
+                        if (item->columnSpan(orientation) != 1)
+                            length += colPositions[item->lastColumn(orientation)] - colPositions[item->firstColumn(orientation)];
+                        box->combine(item->box(orientation, length));
+                    } else {
+                        box->combine(item->box(orientation));
+                    }
 
                     if (effectiveRowSpan == 1) {
                         QSizePolicy::ControlTypes controls = item->controlTypes(top);
@@ -1512,44 +1615,99 @@ void QGridLayoutEngine::ensureEffectiveFirstAndLastRows() const
     }
 }
 
-void QGridLayoutEngine::ensureColumnAndRowData(const QLayoutStyleInfo &styleInfo) const
+void QGridLayoutEngine::ensureColumnAndRowData(QGridLayoutRowData *rowData, QGridLayoutBox *totalBox,
+                                            const QLayoutStyleInfo &styleInfo,
+                                            qreal *colPositions, qreal *colSizes,
+                                            Qt::Orientation orientation) const
 {
-    if (q_cachedDataForStyleInfo == styleInfo)
-        return;
-
-    q_columnData.reset(columnCount());
-    q_rowData.reset(rowCount());
-
-    fillRowData(&q_columnData, styleInfo, Qt::Horizontal);
-    fillRowData(&q_rowData, styleInfo, Qt::Vertical);
+    rowData->reset(rowCount(orientation));
+    fillRowData(rowData, styleInfo, colPositions, colSizes, orientation);
+    rowData->distributeMultiCells();
+    *totalBox = rowData->totalBox(0, rowCount(orientation));
+        //We have items whose width depends on their height
+}
 
-    q_columnData.distributeMultiCells();
-    q_rowData.distributeMultiCells();
+/**
+   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;
+}
 
-    q_totalBoxes[Hor] = q_columnData.totalBox(0, columnCount());
-    q_totalBoxes[Ver] = q_rowData.totalBox(0, rowCount());
+bool QGridLayoutEngine::hasDynamicConstraint() const
+{
+    if (!ensureDynamicConstraint())
+        return false;
+    return q_cachedConstraintOrientation != NoConstraint;
+}
 
-    q_cachedDataForStyleInfo = styleInfo;
+/*
+ * 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
 {
-    ensureColumnAndRowData(styleInfo);
-    if (q_cachedSize == size)
+    if (q_cachedDataForStyleInfo == styleInfo && q_cachedSize == size)
         return;
 
+    q_cachedDataForStyleInfo = styleInfo;
+    q_cachedSize = size;
+
     q_xx.resize(columnCount());
-    q_yy.resize(rowCount());
     q_widths.resize(columnCount());
+    q_yy.resize(rowCount());
     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]);
 
-    q_cachedSize = size;
+    if(constraintOrientation() != Qt::Horizontal) {
+        //We might have items whose width depends on their height
+        ensureColumnAndRowData(&q_columnData, &q_totalBoxes[Hor], styleInfo, NULL, NULL, Qt::Horizontal);
+        //Calculate column widths and positions, and put results in q_xx.data() and q_widths.data() so that we can use this information as
+        //constraints to find the row heights
+        q_columnData.calculateGeometries(0, columnCount(), size.width(), q_xx.data(), q_widths.data(),
+                0, q_totalBoxes[Hor]);
+        ensureColumnAndRowData(&q_rowData, &q_totalBoxes[Ver], styleInfo, q_xx.data(), q_widths.data(), Qt::Vertical);
+        //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data()
+        q_rowData.calculateGeometries(0, rowCount(), size.height(), q_yy.data(), q_heights.data(),
+                q_descents.data(), q_totalBoxes[Ver]);
+    } else {
+        //We have items whose height depends on their width
+        ensureColumnAndRowData(&q_rowData, &q_totalBoxes[Ver], styleInfo, NULL, NULL, Qt::Vertical);
+        //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data() so that we can use this information as
+        //constraints to find the column widths
+        q_rowData.calculateGeometries(0, rowCount(), size.height(), q_yy.data(), q_heights.data(),
+                q_descents.data(), q_totalBoxes[Ver]);
+        ensureColumnAndRowData(&q_columnData, &q_totalBoxes[Hor], styleInfo, q_yy.data(), q_heights.data(), Qt::Horizontal);
+        //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data()
+        q_columnData.calculateGeometries(0, columnCount(), size.width(), q_xx.data(), q_widths.data(),
+                0, q_totalBoxes[Hor]);
+    }
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/graphicsview/qgridlayoutengine_p.h b/src/gui/graphicsview/qgridlayoutengine_p.h
index 9ac9a8e..02c74b0 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,   // Width depends on the height
+    VerticalConstraint,     // Height depends on the width
+    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);
@@ -390,9 +410,14 @@ private:
     void setItemAt(int row, int column, QGridLayoutItem *item);
     void insertOrRemoveRows(int row, int delta, Qt::Orientation orientation = Qt::Vertical);
     void fillRowData(QGridLayoutRowData *rowData, const QLayoutStyleInfo &styleInfo,
-                     Qt::Orientation orientation = Qt::Vertical) const;
+                                    qreal *colPositions, qreal *colSizes,
+                                    Qt::Orientation orientation = Qt::Vertical) const;
     void ensureEffectiveFirstAndLastRows() const;
-    void ensureColumnAndRowData(const QLayoutStyleInfo &styleInfo) const;
+    void ensureColumnAndRowData(QGridLayoutRowData *rowData, QGridLayoutBox *totalBox,
+                                            const QLayoutStyleInfo &styleInfo,
+                                            qreal *colPositions, qreal *colSizes,
+                                            Qt::Orientation orientation) const;
+
     void ensureGeometries(const QLayoutStyleInfo &styleInfo, const QSizeF &size) const;
 
     // User input
@@ -405,6 +430,7 @@ 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/image/qtiffhandler.cpp b/src/gui/image/qtiffhandler.cpp
index de4f680..1627917 100644
--- a/src/gui/image/qtiffhandler.cpp
+++ b/src/gui/image/qtiffhandler.cpp
@@ -608,6 +608,7 @@ QVariant QTiffHandler::option(ImageOption option) const
             TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &width);
             TIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &height);
             imageSize = QSize(width, height);
+            TIFFClose(tiff);
         }
         device()->seek(pos);
         if (imageSize.isValid())
diff --git a/src/gui/kernel/qcocoaview_mac.mm b/src/gui/kernel/qcocoaview_mac.mm
index a552ce7..f759fe0 100644
--- a/src/gui/kernel/qcocoaview_mac.mm
+++ b/src/gui/kernel/qcocoaview_mac.mm
@@ -939,10 +939,6 @@ static int qCocoaViewCount = 0;
         }
     }
 #endif //QT_NO_WHEELEVENT
-
-    if (!wheelOK) {
-        return [super scrollWheel:theEvent];
-    }
 }
 
 - (void)tabletProximity:(NSEvent *)tabletEvent
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index f7c795e..9b44f15 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -68,6 +68,7 @@
 # include "qt_cocoa_helpers_mac_p.h"
 # include "qmainwindow.h"
 # include "qtoolbar.h"
+# include <private/qmainwindowlayout_p.h>
 #endif
 #if defined(Q_WS_QWS)
 # include "qwsdisplay_qws.h"
@@ -3002,6 +3003,15 @@ bool QWidget::isFullScreen() const
 */
 void QWidget::showFullScreen()
 {
+#ifdef Q_WS_MAC
+    // If the unified toolbar is enabled, we have to disable it before going fullscreen.
+    QMainWindow *mainWindow = qobject_cast<QMainWindow*>(this);
+    if (mainWindow && mainWindow->unifiedTitleAndToolBarOnMac()) {
+        mainWindow->setUnifiedTitleAndToolBarOnMac(false);
+        QMainWindowLayout *mainLayout = qobject_cast<QMainWindowLayout*>(mainWindow->layout());
+        mainLayout->activateUnifiedToolbarAfterFullScreen = true;
+    }
+#endif // Q_WS_MAC
     ensurePolished();
 #ifdef QT3_SUPPORT
     if (parent())
@@ -3034,6 +3044,18 @@ void QWidget::showMaximized()
 
     setWindowState((windowState() & ~(Qt::WindowMinimized | Qt::WindowFullScreen))
                    | Qt::WindowMaximized);
+#ifdef Q_WS_MAC
+    // If the unified toolbar was enabled before going fullscreen, we have to enable it back.
+    QMainWindow *mainWindow = qobject_cast<QMainWindow*>(this);
+    if (mainWindow)
+    {
+        QMainWindowLayout *mainLayout = qobject_cast<QMainWindowLayout*>(mainWindow->layout());
+        if (mainLayout->activateUnifiedToolbarAfterFullScreen) {
+            mainWindow->setUnifiedTitleAndToolBarOnMac(true);
+            mainLayout->activateUnifiedToolbarAfterFullScreen = false;
+        }
+    }
+#endif // Q_WS_MAC
     show();
 }
 
@@ -3055,6 +3077,18 @@ void QWidget::showNormal()
     setWindowState(windowState() & ~(Qt::WindowMinimized
                                      | Qt::WindowMaximized
                                      | Qt::WindowFullScreen));
+#ifdef Q_WS_MAC
+    // If the unified toolbar was enabled before going fullscreen, we have to enable it back.
+    QMainWindow *mainWindow = qobject_cast<QMainWindow*>(this);
+    if (mainWindow)
+    {
+        QMainWindowLayout *mainLayout = qobject_cast<QMainWindowLayout*>(mainWindow->layout());
+        if (mainLayout->activateUnifiedToolbarAfterFullScreen) {
+            mainWindow->setUnifiedTitleAndToolBarOnMac(true);
+            mainLayout->activateUnifiedToolbarAfterFullScreen = false;
+        }
+    }
+#endif // Q_WS_MAC
     show();
 }
 
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index 1e2aa9f..997419b 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -2794,19 +2794,38 @@ void QWidgetPrivate::transferChildren()
 #ifdef QT_MAC_USE_COCOA
 void QWidgetPrivate::setSubWindowStacking(bool set)
 {
+    // This will set/remove a visual relationship between parent and child on screen.
+    // The reason for doing this is to ensure that a child always stacks infront of
+    // its parent. Unfortunatly is turns out that [NSWindow addChildWindow] has
+    // several unwanted side-effects, one of them being the moving of a child when
+    // moving the parent, which we choose to accept. A way tougher side-effect is
+    // that Cocoa will hide the parent if you hide the child. And in the case of
+    // a tool window, since it will normally hide when you deactivate the
+    // application, Cocoa will hide the parent upon deactivate as well. The result often
+    // being no more visible windows on screen. So, to make a long story short, we only
+    // allow parent-child relationships between windows that both are either a plain window
+    // or a dialog.
+
     Q_Q(QWidget);
-    if (!q->isWindow() || !q->testAttribute(Qt::WA_WState_Created))
+    if (!q->isWindow())
+        return;
+    NSWindow *qwin = [qt_mac_nativeview_for(q) window];
+    if (!qwin)
+        return;
+    Qt::WindowType qtype = q->windowType();
+    if (set && !(qtype == Qt::Window || qtype == Qt::Dialog))
+        return;
+    if (set && ![qwin isVisible])
         return;
 
     if (QWidget *parent = q->parentWidget()) {
-        if (parent->testAttribute(Qt::WA_WState_Created)) {
+        if (NSWindow *pwin = [qt_mac_nativeview_for(parent) window]) {
             if (set) {
-                if (parent->isVisible()) {
-                    NSWindow *childwin = qt_mac_window_for(q);
-                    [qt_mac_window_for(parent) addChildWindow:childwin ordered:NSWindowAbove];
-                }
+                Qt::WindowType ptype = parent->window()->windowType();
+                if ([pwin isVisible] && (ptype == Qt::Window || ptype == Qt::Dialog) && ![qwin parentWindow])
+                    [pwin addChildWindow:qwin ordered:NSWindowAbove];
             } else {
-                [qt_mac_window_for(parent) removeChildWindow:qt_mac_window_for(q)];
+                [pwin removeChildWindow:qwin];
             }
         }
     }
@@ -2814,12 +2833,15 @@ void QWidgetPrivate::setSubWindowStacking(bool set)
     QList<QWidget *> widgets = q->findChildren<QWidget *>();
     for (int i=0; i<widgets.size(); ++i) {
         QWidget *child = widgets.at(i);
-        if (child->isWindow() && child->testAttribute(Qt::WA_WState_Created) && child->isVisibleTo(q)) {
-            if (set) {
-                NSWindow *childwin = qt_mac_window_for(child);
-                [qt_mac_window_for(q) addChildWindow:childwin ordered:NSWindowAbove];
-            } else {
-                [qt_mac_window_for(q) removeChildWindow:qt_mac_window_for(child)];
+        if (child && child->isWindow()) {
+            if (NSWindow *cwin = [qt_mac_nativeview_for(child) window]) {
+                if (set) {
+                    Qt::WindowType ctype = child->window()->windowType();
+                    if ([cwin isVisible] && (ctype == Qt::Window || ctype == Qt::Dialog) && ![cwin parentWindow])
+                        [qwin addChildWindow:cwin ordered:NSWindowAbove];
+                } else {
+                    [qwin removeChildWindow:qt_mac_window_for(child)];
+                }
             }
         }
     }
@@ -3442,7 +3464,6 @@ void QWidgetPrivate::show_sys()
 #else
             // sync the opacity value back (in case of a fade).
             [window setAlphaValue:q->windowOpacity()];
-            setSubWindowStacking(true);
 
             QWidget *top = 0;
             if (QApplicationPrivate::tryModalHelper(q, &top)) {
@@ -3461,6 +3482,7 @@ void QWidgetPrivate::show_sys()
                         [modalWin orderFront:window];
                 }
             }
+            setSubWindowStacking(true);
 #endif
             if (q->windowType() == Qt::Popup) {
 			    if (q->focusWidget())
diff --git a/src/gui/kernel/qwidget_s60.cpp b/src/gui/kernel/qwidget_s60.cpp
index 9a451ce..5df5e19 100644
--- a/src/gui/kernel/qwidget_s60.cpp
+++ b/src/gui/kernel/qwidget_s60.cpp
@@ -544,7 +544,7 @@ void QWidgetPrivate::show_sys()
 
         id->MakeVisible(true);
 
-        if(q->isWindow())
+        if(q->isWindow()&&!q->testAttribute(Qt::WA_ShowWithoutActivating))
             id->setFocusSafely(true);
     }
 
diff --git a/src/gui/painting/painting.pri b/src/gui/painting/painting.pri
index 793d380..bd37d9f 100644
--- a/src/gui/painting/painting.pri
+++ b/src/gui/painting/painting.pri
@@ -234,13 +234,14 @@ embedded {
 
 
 symbian {
-        HEADERS += painting/qwindowsurface_s60_p.h
+        HEADERS += painting/qwindowsurface_s60_p.h \
+                    painting/qdrawhelper_arm_simd_p.h
         SOURCES += painting/qwindowsurface_s60.cpp
         armccIfdefBlock = \
         "$${LITERAL_HASH}if defined(ARMV6)" \
+        "MACRO QT_HAVE_ARM_SIMD" \
         "SOURCEPATH 	painting" \
-        "SOURCE			qblendfunctions_armv6_rvct.s" \
-        "SOURCE			qdrawhelper_armv6_rvct.s" \
+        "SOURCE			qdrawhelper_arm_simd.cpp" \
         "$${LITERAL_HASH}endif"
 
         MMP_RULES += armccIfdefBlock
diff --git a/src/gui/painting/qblendfunctions_armv6_rvct.s b/src/gui/painting/qblendfunctions_armv6_rvct.s
deleted file mode 100644
index 1e3faa9..0000000
--- a/src/gui/painting/qblendfunctions_armv6_rvct.s
+++ /dev/null
@@ -1,222 +0,0 @@
-;****************************************************************************
-;**
-;** 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.
-;**
-;**
-;**
-;**
-;**
-;**
-;**
-;**
-;** $QT_END_LICENSE$
-;**
-;****************************************************************************
-
-;
-;  W A R N I N G
-;  -------------
-;
-; This file is not part of the Qt API.  It exists purely as an
-; implementation detail.  This header file may change from version to
-; version without notice, or even be removed.
-;
-; We mean it.
-;
-
-
-		ARM
-		PRESERVE8
-
-		INCLUDE		qdrawhelper_armv6_rvct.inc
-
-
-;-----------------------------------------------------------------------------
-; qt_blend_rgb32_on_rgb32_arm
-;
-; @brief
-;
-; @param dest			Destination	pixels						(r0)
-; @param dbpl			Destination bytes per line				(r1)
-; @param src			Source pixels							(r2)
-; @param sbpl			Source bytes per line					(r3)
-; @param w				Width							  (s0 -> r4)
-; @param h				Height							  (s1 -> r5)
-; @param const_alpha	Constant alpha					  (s2 -> r6)
-;
-;---------------------------------------------------------------------------
-qt_blend_rgb32_on_rgb32_armv6 Function
-		stmfd	sp!, {r4-r12, r14}
-
-		; read arguments off the stack
-		add		r8, sp, #10 * 4
-		ldmia	r8, {r9-r11}
-
-		; Reorganize registers
-
-		mov		r4, r10
-		mov		r5, r1
-		mov		r6, r3
-
-		mov		r1, r2
-		mov		r2, r9
-		mov		r3, r11
-
-		; Now we have registers
-		; @param dest			Destination	pixels						(r0)
-		; @param src			Source pixels							(r1)
-		; @param w				Width							  		(r2)
-		; @param const_alpha	Constant alpha					  		(r3)
-		; @param h				Height							  		(r4)
-		; @param dbpl			Destination bytes per line				(r5)
-		; @param sbpl			Source bytes per line					(r6)
-
-		cmp		r3, #256 ; test if we have fully opaque constant alpha value
-		bne		rgb32_blend_const_alpha ; branch if not
-
-rgb32_blend_loop
-
-		subs	r4, r4, #1
-		bmi		rgb32_blend_exit	; while(h--)
-
-rgb321	PixCpySafe r0, r1, r2
-
-		add		r0, r0, r5 ; dest = dest + dbpl
-		add		r1, r1, r6 ; src = src + sbpl
-
-		b		rgb32_blend_loop
-
-
-rgb32_blend_const_alpha
-
-		;ldr		r14, =ComponentHalf ; load 0x800080 to r14
-		mov		r14, #0x800000
-		add		r14, r14, #0x80
-
-		sub		r3, r3, #1	; const_alpha -= 1;
-
-rgb32_blend_loop_const_alpha
-
-		subs	r4, r4, #1
-		bmi		rgb32_blend_exit	; while(h--)
-
-rgb322	BlendRowSafe PixelSourceOverConstAlpha
-
-		add		r0, r0, r5 ; dest = dest + dbpl
-		add		r1, r1, r6 ; src = src + sbpl
-
-		b		rgb32_blend_loop_const_alpha
-
-rgb32_blend_exit
-
-		ldmfd	sp!, {r4-r12, pc}		; pop and return
-
-
-
-;-----------------------------------------------------------------------------
-; qt_blend_argb32_on_argb32_arm
-;
-; @brief
-;
-; @param dest			Destination	pixels						(r0)
-; @param dbpl			Destination bytes per line				(r1)
-; @param src			Source pixels							(r2)
-; @param sbpl			Source bytes per line					(r3)
-; @param w				Width							  (s0 -> r4)
-; @param h				Height							  (s1 -> r5)
-; @param const_alpha	Constant alpha					  (s2 -> r6)
-;
-;---------------------------------------------------------------------------
-qt_blend_argb32_on_argb32_armv6 Function
-		stmfd	sp!, {r4-r12, r14}
-
-	 	; read arguments off the stack
-		add		r8, sp, #10 * 4
-		ldmia	r8, {r9-r11}
-
-		; Reorganize registers
-
-		mov		r4, r10
-		mov		r5, r1
-		mov		r6, r3
-
-		mov		r1, r2
-		mov		r2, r9
-		mov		r3, r11
-
-		; Now we have registers
-		; @param dest			Destination	pixels						(r0)
-		; @param src			Source pixels							(r1)
-		; @param w				Width							  		(r2)
-		; @param const_alpha	Constant alpha					  		(r3)
-		; @param h				Height							  		(r4)
-		; @param dbpl			Destination bytes per line				(r5)
-		; @param sbpl			Source bytes per line					(r6)
-
-		;ldr		r14, =ComponentHalf ; load 0x800080 to r14
-		mov		r14, #0x800000
-		add		r14, r14, #0x80
-
-		cmp		r3, #256 ; test if we have fully opaque constant alpha value
-		bne		argb32_blend_const_alpha ; branch if not
-
-argb32_blend_loop
-
-		subs	r4, r4, #1
-		bmi		argb32_blend_exit	; while(h--)
-
-argb321	 BlendRowSafe PixelSourceOver
-
-		add		r0, r0, r5 ; dest = dest + dbpl
-		add		r1, r1, r6 ; src = src + sbpl
-
-		b		argb32_blend_loop
-
-argb32_blend_const_alpha
-
-		sub		r3, r3, #1	; const_alpha -= 1;
-
-argb32_blend_loop_const_alpha
-
-		subs	r4, r4, #1
-		bmi		argb32_blend_exit	; while(h--)
-
-argb322	 BlendRowSafe PixelSourceOverConstAlpha
-
-		add		r0, r0, r5 ; dest = dest + dbpl
-		add		r1, r1, r6 ; src = src + sbpl
-
-		b		argb32_blend_loop_const_alpha
-
-argb32_blend_exit
-
-		ldmfd	sp!, {r4-r12, pc}		; pop and return
-
-
-		END ; File end
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp
index 5f190ba..a4ab278 100644
--- a/src/gui/painting/qdrawhelper.cpp
+++ b/src/gui/painting/qdrawhelper.cpp
@@ -43,7 +43,7 @@
 #include <private/qpaintengine_raster_p.h>
 #include <private/qpainter_p.h>
 #include <private/qdrawhelper_x86_p.h>
-#include <private/qdrawhelper_armv6_p.h>
+#include <private/qdrawhelper_arm_simd_p.h>
 #include <private/qdrawhelper_neon_p.h>
 #include <private/qmath_p.h>
 #include <qmath.h>
@@ -7678,96 +7678,6 @@ static void qt_memfill16_setup(quint16 *dest, quint16 value, int count);
 qt_memfill32_func qt_memfill32 = qt_memfill32_setup;
 qt_memfill16_func qt_memfill16 = qt_memfill16_setup;
 
-#if defined(Q_CC_RVCT) && defined(QT_HAVE_ARMV6)
-// Move these to qdrawhelper_arm.c when all
-// functions are implemented using arm assembly.
-static CompositionFunctionSolid qt_functionForModeSolid_ARMv6[numCompositionFunctions] = {
-        comp_func_solid_SourceOver,
-        comp_func_solid_DestinationOver,
-        comp_func_solid_Clear,
-        comp_func_solid_Source,
-        comp_func_solid_Destination,
-        comp_func_solid_SourceIn,
-        comp_func_solid_DestinationIn,
-        comp_func_solid_SourceOut,
-        comp_func_solid_DestinationOut,
-        comp_func_solid_SourceAtop,
-        comp_func_solid_DestinationAtop,
-        comp_func_solid_XOR,
-        comp_func_solid_Plus,
-        comp_func_solid_Multiply,
-        comp_func_solid_Screen,
-        comp_func_solid_Overlay,
-        comp_func_solid_Darken,
-        comp_func_solid_Lighten,
-        comp_func_solid_ColorDodge,
-        comp_func_solid_ColorBurn,
-        comp_func_solid_HardLight,
-        comp_func_solid_SoftLight,
-        comp_func_solid_Difference,
-        comp_func_solid_Exclusion,
-        rasterop_solid_SourceOrDestination,
-        rasterop_solid_SourceAndDestination,
-        rasterop_solid_SourceXorDestination,
-        rasterop_solid_NotSourceAndNotDestination,
-        rasterop_solid_NotSourceOrNotDestination,
-        rasterop_solid_NotSourceXorDestination,
-        rasterop_solid_NotSource,
-        rasterop_solid_NotSourceAndDestination,
-        rasterop_solid_SourceAndNotDestination
-};
-
-static CompositionFunction qt_functionForMode_ARMv6[numCompositionFunctions] = {
-        comp_func_SourceOver_armv6,
-        comp_func_DestinationOver,
-        comp_func_Clear,
-        comp_func_Source_armv6,
-        comp_func_Destination,
-        comp_func_SourceIn,
-        comp_func_DestinationIn,
-        comp_func_SourceOut,
-        comp_func_DestinationOut,
-        comp_func_SourceAtop,
-        comp_func_DestinationAtop,
-        comp_func_XOR,
-        comp_func_Plus,
-        comp_func_Multiply,
-        comp_func_Screen,
-        comp_func_Overlay,
-        comp_func_Darken,
-        comp_func_Lighten,
-        comp_func_ColorDodge,
-        comp_func_ColorBurn,
-        comp_func_HardLight,
-        comp_func_SoftLight,
-        comp_func_Difference,
-        comp_func_Exclusion,
-        rasterop_SourceOrDestination,
-        rasterop_SourceAndDestination,
-        rasterop_SourceXorDestination,
-        rasterop_NotSourceAndNotDestination,
-        rasterop_NotSourceOrNotDestination,
-        rasterop_NotSourceXorDestination,
-        rasterop_NotSource,
-        rasterop_NotSourceAndDestination,
-        rasterop_SourceAndNotDestination
-};
-
-static void qt_blend_color_argb_armv6(int count, const QSpan *spans, void *userData)
-{
-    QSpanData *data = reinterpret_cast<QSpanData *>(userData);
-
-    CompositionFunctionSolid func = qt_functionForModeSolid_ARMv6[data->rasterBuffer->compositionMode];
-    while (count--) {
-        uint *target = ((uint *)data->rasterBuffer->scanLine(spans->y)) + spans->x;
-        func(target, spans->len, data->solid.color, spans->coverage);
-        ++spans;
-    }
-}
-
-#endif // Q_CC_RVCT && QT_HAVE_ARMV6
-
-
 void qInitDrawhelperAsm()
 {
 
@@ -7938,46 +7848,39 @@ void qInitDrawhelperAsm()
     }
 #endif // IWMMXT
 
-#if defined(Q_CC_RVCT) && defined(QT_HAVE_ARMV6)
-        functionForModeAsm = qt_functionForMode_ARMv6;
-        functionForModeSolidAsm = qt_functionForModeSolid_ARMv6;
+#if defined(QT_HAVE_ARM_SIMD)
+    qBlendFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_arm_simd;
+    qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_arm_simd;
+    qBlendFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_arm_simd;
+    qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_arm_simd;
+#elif defined(QT_HAVE_NEON)
+    if (features & NEON) {
+        qBlendFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_neon;
+        qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_neon;
+        qBlendFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_neon;
+        qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_neon;
+        qBlendFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_rgb16_neon;
+        qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB16] = qt_blend_rgb16_on_argb32_neon;
+        qBlendFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_blend_rgb16_on_rgb16_neon;
+
+        qScaleFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_scale_image_argb32_on_rgb16_neon;
+        qScaleFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_scale_image_rgb16_on_rgb16_neon;
 
-        qt_memfill32 = qt_memfill32_armv6;
+        qTransformFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_transform_image_argb32_on_rgb16_neon;
+        qTransformFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_transform_image_rgb16_on_rgb16_neon;
 
-        qDrawHelper[QImage::Format_ARGB32_Premultiplied].blendColor = qt_blend_color_argb_armv6;
+        qDrawHelper[QImage::Format_RGB16].alphamapBlit = qt_alphamapblit_quint16_neon;
 
-        qBlendFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_armv6;
-        qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_armv6;
-        qBlendFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_armv6;
-        qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_armv6;
-#elif defined(QT_HAVE_NEON)
-        if (features & NEON) {
-            qBlendFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_neon;
-            qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_neon;
-            qBlendFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_neon;
-            qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_neon;
-            qBlendFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_rgb16_neon;
-            qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB16] = qt_blend_rgb16_on_argb32_neon;
-            qBlendFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_blend_rgb16_on_rgb16_neon;
-
-            qScaleFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_scale_image_argb32_on_rgb16_neon;
-            qScaleFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_scale_image_rgb16_on_rgb16_neon;
-
-            qTransformFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_transform_image_argb32_on_rgb16_neon;
-            qTransformFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_transform_image_rgb16_on_rgb16_neon;
-
-            qDrawHelper[QImage::Format_RGB16].alphamapBlit = qt_alphamapblit_quint16_neon;
-
-            functionForMode_C[QPainter::CompositionMode_SourceOver] = qt_blend_argb32_on_argb32_scanline_neon;
-            functionForModeSolid_C[QPainter::CompositionMode_SourceOver] = comp_func_solid_SourceOver_neon;
-            functionForMode_C[QPainter::CompositionMode_Plus] = comp_func_Plus_neon;
-            destFetchProc[QImage::Format_RGB16] = qt_destFetchRGB16_neon;
-            destStoreProc[QImage::Format_RGB16] = qt_destStoreRGB16_neon;
-
-            qMemRotateFunctions[QImage::Format_RGB16][0] = qt_memrotate90_16_neon;
-            qMemRotateFunctions[QImage::Format_RGB16][2] = qt_memrotate270_16_neon;
-            qt_memfill32 = qt_memfill32_neon;
-        }
+        functionForMode_C[QPainter::CompositionMode_SourceOver] = qt_blend_argb32_on_argb32_scanline_neon;
+        functionForModeSolid_C[QPainter::CompositionMode_SourceOver] = comp_func_solid_SourceOver_neon;
+        functionForMode_C[QPainter::CompositionMode_Plus] = comp_func_Plus_neon;
+        destFetchProc[QImage::Format_RGB16] = qt_destFetchRGB16_neon;
+        destStoreProc[QImage::Format_RGB16] = qt_destStoreRGB16_neon;
+
+        qMemRotateFunctions[QImage::Format_RGB16][0] = qt_memrotate90_16_neon;
+        qMemRotateFunctions[QImage::Format_RGB16][2] = qt_memrotate270_16_neon;
+        qt_memfill32 = qt_memfill32_neon;
+    }
 #endif
 
     if (functionForModeSolidAsm) {
diff --git a/src/gui/painting/qdrawhelper_arm_simd.cpp b/src/gui/painting/qdrawhelper_arm_simd.cpp
new file mode 100644
index 0000000..61dac5e
--- /dev/null
+++ b/src/gui/painting/qdrawhelper_arm_simd.cpp
@@ -0,0 +1,313 @@
+/****************************************************************************
+**
+** 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 "qdrawhelper_arm_simd_p.h"
+
+#include <private/qpaintengine_raster_p.h>
+#include <private/qblendfunctions_p.h>
+
+#ifdef QT_HAVE_ARM_SIMD
+
+#if defined(Q_OS_SYMBIAN)
+#include <u32std.h>
+#endif
+
+#if defined(Q_OS_SYMBIAN) && defined(Q_CC_RVCT)
+__asm void qt_blend_argb32_on_argb32_arm_simd(uchar *destPixels, int dbpl,
+                                        const uchar *srcPixels, int sbpl,
+                                        int w, int h,
+                                        int const_alpha)
+{
+#ifndef __ARMCC__
+    __SWITCH_TO_ARM;
+#else
+    CODE32
+#endif // __ARMCC__
+
+    stmfd   sp!, {r4-r12, r14}
+
+    // read arguments off the stack
+    add     r8, sp, #10 * 4
+    ldmia   r8, {r4-r6}
+
+    // adjust dbpl and sbpl
+    mov     r14, #4
+    mul     r14, r4, r14
+    sub     r1, r1, r14
+    sub     r3, r3, r14
+
+    // load 0xFF00FF00 to r12
+    mov     r12, #0xFF000000
+    add     r12, r12, #0xFF00
+
+    // load 0x800080 to r14
+    mov     r14, #0x800000
+    add     r14, r14, #0x80
+
+    /*
+      Registers:
+       r0 dst
+       r1 dbpl
+       r2 src
+       r3 sbpl
+       r4 w
+       r5 h
+       r6 const_alpha
+       r12 0xFF0000
+       r14 0x800080
+    */
+
+    cmp     r6, #256 //test if we have fully opaque constant alpha value
+    bne     argb32constalpha // branch if not
+
+argb32_next_row
+
+    mov     r7, r4
+
+argb32_next_pixel
+
+    ldr     r8, [r2], #4 // load src pixel
+
+    // Negate r8 and extract src alpha
+    mvn     r11, r8 // bitwise not
+    uxtb    r11, r11, ror #24
+
+    cmp     r11, #0 // test for full src opacity (negated)
+    beq     argb32_no_blend
+
+    cmp     r11, #255 // test for full src transparency (negated)
+    addeq   r0, #4
+    beq     argb32_nop
+
+    ldr     r9, [r0] // load dst pixel
+
+    // blend
+    uxtb16  r10, r9
+    uxtb16  r6, r9, ror #8
+    mla     r10, r11, r10, r14
+    mla     r9, r6, r11, r14
+    uxtab16 r10, r10, r10, ror #8
+    uxtab16 r9, r9, r9, ror #8
+    and     r9, r9, r12
+    uxtab16 r10, r9, r10, ror #8
+
+    uqadd8  r8, r10, r8
+
+argb32_no_blend
+
+    str     r8, [r0], #4
+
+argb32_nop
+
+    subs    r7, r7, #1
+    bgt     argb32_next_pixel
+
+    add     r0, r0, r1 // dest = dest + dbpl
+    add     r2, r2, r3 // src = src + sbpl
+
+    subs    r5, r5, #1
+    bgt     argb32_next_row
+
+    b       argb32_blend_exit
+
+argb32constalpha
+
+    cmp     r6, #0
+    beq     argb32_blend_exit
+
+    ; const_alpha = (const_alpha * 255) >> 8;
+    mov     r11, #255
+    mul     r6, r6, r11
+    mov     r11, r6, lsr #8
+
+argb32constalpha_next_row
+
+    mov     r7, r4
+
+argb32constalpha_next_pixel
+
+    ldr     r9, [r2], #4 // load src pixel
+
+    // blend
+    uxtb16  r10, r9
+    uxtb16  r6, r9, ror #8
+    mla     r10, r11, r10, r14
+    mla     r9, r6, r11, r14
+    uxtab16 r10, r10, r10, ror #8
+    uxtab16 r9, r9, r9, ror #8
+    and     r9, r9, r12
+    uxtab16 r8, r9, r10, ror #8
+
+    ldr     r9, [r0] // load dst pixel
+
+    // blend
+    uxtb16  r10, r9
+    uxtb16  r6, r9, ror #8
+
+    // Negate r11 and extract src alpha
+    mvn     r9, r11 // bitwise not
+    uxtb    r9, r9, ror #24
+
+    mla     r10, r9, r10, r14
+    mla     r9, r6, r9, r14
+    uxtab16 r10, r10, r10, ror #8
+    uxtab16 r9, r9, r9, ror #8
+    and     r9, r9, r12
+    uxtab16 r10, r9, r10, ror #8
+
+    uqadd8  r8, r10, r8
+
+    str     r8, [r0], #4
+
+    subs    r7, r7, #1
+    bgt     argb32constalpha_next_pixel
+
+    add     r0, r0, r1 // dest = dest + dbpl
+    add     r2, r2, r3 // src = src + sbpl
+
+    subs    r5, r5, #1
+    bgt     argb32constalpha_next_row
+
+argb32_blend_exit
+
+    // Restore registers
+    ldmfd   sp!, {r4-r12, lr}
+    bx      lr
+
+    __END_ARM
+}
+
+void qt_blend_rgb32_on_rgb32_arm_simd(uchar *destPixels, int dbpl,
+                             const uchar *srcPixels, int sbpl,
+                             int w, int h,
+                             int const_alpha)
+{
+    if (const_alpha != 256) {
+        qt_blend_argb32_on_argb32_arm_simd(destPixels, dbpl, srcPixels, sbpl, w, h, const_alpha);
+        return;
+    }
+
+    const uint *src = (const uint *) srcPixels;
+    uint *dst = (uint *) destPixels;
+    if (w <= 64) {
+        for (int y=0; y<h; ++y) {
+            qt_memconvert(dst, src, w);
+            dst = (quint32 *)(((uchar *) dst) + dbpl);
+            src = (const quint32 *)(((const uchar *) src) + sbpl);
+        }
+    } else {
+        int len = w * 4;
+        for (int y=0; y<h; ++y) {
+            memcpy(dst, src, len);
+            dst = (quint32 *)(((uchar *) dst) + dbpl);
+            src = (const quint32 *)(((const uchar *) src) + sbpl);
+        }
+    }
+}
+
+#else // defined(Q_OS_SYMBIAN) && defined(Q_CC_RVCT)
+
+// TODO: add GNU assembler instructions and support for other platforms.
+//       Default to C code for now
+
+void qt_blend_argb32_on_argb32_arm_simd(uchar *destPixels, int dbpl,
+                                        const uchar *srcPixels, int sbpl,
+                                        int w, int h,
+                                        int const_alpha)
+{
+    const uint *src = (const uint *) srcPixels;
+    uint *dst = (uint *) destPixels;
+    if (const_alpha == 256) {
+        for (int y=0; y<h; ++y) {
+            for (int x=0; x<w; ++x) {
+                uint s = src[x];
+                if (s >= 0xff000000)
+                    dst[x] = s;
+                else if (s != 0)
+                    dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s));
+            }
+            dst = (quint32 *)(((uchar *) dst) + dbpl);
+            src = (const quint32 *)(((const uchar *) src) + sbpl);
+        }
+    } else if (const_alpha != 0) {
+        const_alpha = (const_alpha * 255) >> 8;
+        for (int y=0; y<h; ++y) {
+            for (int x=0; x<w; ++x) {
+                uint s = BYTE_MUL(src[x], const_alpha);
+                dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s));
+            }
+            dst = (quint32 *)(((uchar *) dst) + dbpl);
+            src = (const quint32 *)(((const uchar *) src) + sbpl);
+        }
+    }
+}
+
+void qt_blend_rgb32_on_rgb32_arm_simd(uchar *destPixels, int dbpl,
+                             const uchar *srcPixels, int sbpl,
+                             int w, int h,
+                             int const_alpha)
+{
+    if (const_alpha != 256) {
+        qt_blend_argb32_on_argb32_arm_simd(destPixels, dbpl, srcPixels, sbpl, w, h, const_alpha);
+        return;
+    }
+
+    const uint *src = (const uint *) srcPixels;
+    uint *dst = (uint *) destPixels;
+    if (w <= 64) {
+        for (int y=0; y<h; ++y) {
+            qt_memconvert(dst, src, w);
+            dst = (quint32 *)(((uchar *) dst) + dbpl);
+            src = (const quint32 *)(((const uchar *) src) + sbpl);
+        }
+    } else {
+        int len = w * 4;
+        for (int y=0; y<h; ++y) {
+            memcpy(dst, src, len);
+            dst = (quint32 *)(((uchar *) dst) + dbpl);
+            src = (const quint32 *)(((const uchar *) src) + sbpl);
+        }
+    }
+}
+
+#endif
+
+#endif // QT_HAVE_ARMV_SIMD
diff --git a/src/gui/painting/qdrawhelper_armv6_p.h b/src/gui/painting/qdrawhelper_arm_simd_p.h
index e58f8bb..6c96a84 100644
--- a/src/gui/painting/qdrawhelper_armv6_p.h
+++ b/src/gui/painting/qdrawhelper_arm_simd_p.h
@@ -39,8 +39,8 @@
 **
 ****************************************************************************/
 
-#ifndef QDRAWHELPER_ARMV6_P_H
-#define QDRAWHELPER_ARMV6_P_H
+#ifndef QDRAWHELPER_ARM_SIMD_P_H
+#define QDRAWHELPER_ARM_SIMD_P_H
 
 //
 //  W A R N I N G
@@ -57,25 +57,20 @@
 
 QT_BEGIN_NAMESPACE
 
-#if defined(Q_CC_RVCT) && defined(QT_HAVE_ARMV6)
+#if defined(QT_HAVE_ARM_SIMD)
 
-extern "C" void qt_blend_rgb32_on_rgb32_armv6(uchar *destPixels, int dbpl,
+void qt_blend_argb32_on_argb32_arm_simd(uchar *destPixels, int dbpl,
                                             const uchar *srcPixels, int sbpl,
                                             int w, int h,
                                             int const_alpha);
 
-extern "C" void qt_blend_argb32_on_argb32_armv6(uchar *destPixels, int dbpl,
+void qt_blend_rgb32_on_rgb32_arm_simd(uchar *destPixels, int dbpl,
                                             const uchar *srcPixels, int sbpl,
                                             int w, int h,
                                             int const_alpha);
 
-extern "C" void qt_memfill32_armv6(quint32 *dest, quint32 value, int count);
-
-extern "C" void comp_func_Source_armv6(uint *dest, const uint *src, int length, uint const_alpha);
-extern "C" void comp_func_SourceOver_armv6(uint *dest, const uint *src, int length, uint const_alpha);
-
-#endif // QT_HAVE_ARMV6
+#endif // QT_HAVE_ARM_SIMD
 
 QT_END_NAMESPACE
 
-#endif // QDRAWHELPER_ARMV6_P_H
+#endif // QDRAWHELPER_ARM_SIMD_P_H
diff --git a/src/gui/painting/qdrawhelper_armv6_rvct.inc b/src/gui/painting/qdrawhelper_armv6_rvct.inc
deleted file mode 100644
index 8c6d803..0000000
--- a/src/gui/painting/qdrawhelper_armv6_rvct.inc
+++ /dev/null
@@ -1,496 +0,0 @@
-;****************************************************************************
-;**
-;** 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.
-;**
-;**
-;**
-;**
-;**
-;**
-;**
-;**
-;** $QT_END_LICENSE$
-;**
-;****************************************************************************
-
-;
-;  W A R N I N G
-;  -------------
-;
-; This file is not part of the Qt API.  It exists purely as an
-; implementation detail.  This header file may change from version to
-; version without notice, or even be removed.
-;
-; We mean it.
-;
-
-;-----------------------------------------------------------------------------
-; Globals.
-; Earch marcro expects that caller has loaded 0x800080 to r14.
-;-----------------------------------------------------------------------------
-
-ComponentHalf	EQU	0x800080
-
-;-----------------------------------------------------------------------------
-; ARM assembly implementations of accelerated graphics operations.
-;
-; Conventions:
-;
-; 	- r0 = Target buffer pointer
-;	- r1 = Source buffer pointer
-; 	- r2 = Length of the buffer to blend
-;	- r3 = Constant alpha for source buffer
-;
-;-----------------------------------------------------------------------------
-
-; A macro for transparently defining ARM functions
-		MACRO
-$func	Function
-		AREA Function_$func, CODE
-		GLOBAL $func
-		ALIGN 4
-		CODE32
-$func
-		MEND
-
-
-;-----------------------------------------------------------------------------
-; Armv6 boosted implementation of BYTE_MUL(...) function found in qdrawhelper_p.h.
-;
-;  @param dst	Destination register where to store the result
-;  @param x     Value to multiply
-;  @param a     Multiplicator byte
-;  @param r14   Component half 0x800080
-;
-;  @note Trashes x, r8
-;-----------------------------------------------------------------------------
-		MACRO
-		ByteMul $dst, $x, $a
-
-		; static inline uint BYTE_MUL(uint x, uint a)
-
-		; uint r8 = (x & 0xff00ff) * a + 0x800080
-		uxtb16	r8, $x	; r8 = r8 & 0x00FF00FF
-		mla		r8, r8, $a, r14
-
-		; x = ((r >> 8) & 0xff00ff) * a + 0x800080
-		uxtb16	$x, $x, ror #8
-		mla		$x, $x, $a, r14
-
-
-		; r8 = (r8 + ((r8 >> 8) & 0xff00ff) ) >> 8
-		; r8 &= 0xff00ff
-		uxtab16	r8, r8, r8, ror #8
-		uxtb16	r8, r8, ror #8
-
-		; x = x + ((x >>8) & 0xff00ff)
-		uxtab16	$x, $x, $x, ror #8
-
-		; x &= 0xff00ff00
-		; x |= r8
-		uxtb16	$x, $x, ror #8
-		orr		$dst, r8, $x, lsl #8
-
-		MEND
-
-;-----------------------------------------------------------------------------
-; Armv6 boosted implementation of INTERPOLATE_PIXEL_255(...) function found in
-; qdrawhelper_p.h.
-;
-;  @param dst	Destination register where to store the result
-;  @param x     First value to multiply
-;  @param a		Multiplicator byte for first value
-;  @param y     Second value to multiply
-;  @param b     Multiplicator byte for second value
-;  @param r14   Component half 0x800080
-;
-;
-;  @note Trashes x, r8, r14
-;-----------------------------------------------------------------------------
-		MACRO
-		InterpolatePixel255 $dst, $x, $a, $y, $b
-
-		; static inline uint INTERPOLATE_PIXEL_255(uint x, uint a, uint y, uint b)
-
-		; First calculate the parts where we need 0x800080
-
-		; uint r8 = (((x & 0xff00ff) * a) + 0x800080)
-		uxtb16	r8, $x	; r8 = r8 & 0x00FF00FF
-		mla		r8, r8, $a, r14
-
-		; x = ((((x >> 8) & 0xff00ff) * a) + 0x800080)
-		uxtb16	$x, $x, ror #8
-		mla		$x, $x, $a, r14
-
-		; Now we are trashing r14 to free it for other purposes
-
-		; uint r14 = (y & 0xff00ff) * b
-		uxtb16	r14, $y	; r14 = y & 0x00FF00FF
-		mul		r14, r14, $b
-
-		; r8 = r8 + r14
-		add		r8, r8, r14
-
-		; r8 = (r8 + ((r8 >> 8) & 0xff00ff) ) >> 8
-		; r8 &= 0xff00ff
-		uxtab16	r8, r8, r8, ror #8
-		uxtb16	r8, r8, ror #8
-
-		; r14 = ((y >> 8) & 0xff00ff) * b
-		uxtb16	r14, $y, ror #8	; r14 = ((y >> 8) & 0xFF00FF)
-		mul		r14, r14, $b
-
-		; x = x + r14
-		add		$x, $x, r14
-
-		; x = x + ((x >>8) & 0xff00ff)
-		uxtab16	$x, $x, $x, ror #8
-
-		; x &= 0xff00ff00
-		; x |= r8
-		uxtb16	$x, $x, ror #8
-		orr		$dst, r8, $x, lsl #8
-
-		MEND
-
-;-----------------------------------------------------------------------------
-;
-;-----------------------------------------------------------------------------
-		MACRO
-$label	Blend4Pixels $BlendPixel
-
-		; Blend first 4 pixels
-
-		ldmia	r1!, {r4-r7}
-		ldm		r0, {r9-r12}
-
-b4p1_$label	$BlendPixel r9, r4, r3
-b4p2_$label	$BlendPixel r10, r5, r3
-b4p3_$label	$BlendPixel r11, r6, r3
-b4p4_$label	$BlendPixel r12, r7, r3
-
-		stmia 	r0!, {r9-r12}
-
-		MEND
-
-;-----------------------------------------------------------------------------
-;
-;-----------------------------------------------------------------------------
-		MACRO
-$label	Blend8Pixels $BlendPixel
-
-b8p1_$label Blend4Pixels $BlendPixel
-b8p2_$label Blend4Pixels $BlendPixel
-
-		MEND
-
-;-----------------------------------------------------------------------------
-;
-;-----------------------------------------------------------------------------
-		MACRO
-$label	Blend16Pixels $BlendPixel
-
-b16p1_$label Blend8Pixels $BlendPixel
-b16p2_$label Blend8Pixels $BlendPixel
-
-		MEND
-
-;-----------------------------------------------------------------------------
-;
-;-----------------------------------------------------------------------------
-		MACRO
-$label	Blend32Pixels $BlendPixel
-
-b32p1_$label Blend16Pixels $BlendPixel
-b32p2_$label Blend16Pixels $BlendPixel
-
-		MEND
-
-;-----------------------------------------------------------------------------
-; A macro for source over compositing one row of pixels and saving the results
-; to destination buffer.
-;
-; @param dest			Destination	buffer						(r0)
-; @param src			Source buffer							(r1)
-; @param length			Length									(r2)
-; @param const_alpha	Constant alpha					  		(r3)
-; @param r14 			Component Half (0x800080)		  		(r14)
-;
-;  @note Advances r0, r1
-;  @note Trashes r2, r4-r12
-;-----------------------------------------------------------------------------
-		MACRO
-$label	BlendRow $BlendPixel
-
-		pld		[r1]
-
-bloop_$label
-		; Blend 32 pixels per loop iteration
-		subs	r2, r2, #32
-		bmi		b_remaining_$label
-
-brp1_$label	Blend32Pixels $BlendPixel
-
-		b		bloop_$label
-
-b_remaining_$label
-
-		; Remaining 31 pixels
-
-		addmi	r2, r2, #32
-
-		; Blend 16 pixels
-		tst		r2, #16
-		beq		b_remaining8_$label
-
-brp2_$label Blend16Pixels $BlendPixel
-
-b_remaining8_$label
-
-		; Blend 8 pixels
-		tst		r2, #8
-		beq		b_remaining4_$label
-
-brp3_$label Blend8Pixels $BlendPixel
-
-b_remaining4_$label
-
-		; Blend 4 pixels
-		tst		r2, #4
-		beq		b_remaining3_$label
-
-brp4_$label Blend4Pixels $BlendPixel
-
-b_remaining3_$label
-
-		; Remaining 3 pixels
-
-		tst		r2, #2
-		beq		b_last_$label
-
-		ldmia 	r1!, {r4-r5}
-		ldm	  	r0,  {r9-r10}
-
-brp5_$label	$BlendPixel r9, r4, r3
-brp6_$label	$BlendPixel r10, r5, r3
-
-		stmia 	r0!, {r9-r10}
-
-b_last_$label
-
-		tst		r2, #1
-		beq		bexit_$label
-
-		ldr		r4, [r1]
-		ldr		r9, [r0]
-
-bpl_$label	$BlendPixel r9, r4, r3
-
-		str 	r9, [r0]
-
-bexit_$label
-
-		MEND
-
-;-----------------------------------------------------------------------------
-; A macro for source over compositing one row of pixels and saving the results
-; to destination buffer. Restores all registers.
-;
-; @param dest			Destination	buffer						(r0)
-; @param src			Source buffer							(r1)
-; @param length			Length									(r2)
-; @param const_alpha	Constant alpha					  		(r3)
-; @param r14 			Component Half (0x800080)		  		(r14)
-;
-;  @note Advances r0, r1
-;  @note Trashes r2, r4-r12
-;-----------------------------------------------------------------------------
-		MACRO
-$label	BlendRowSafe $BlendPixel
-
-		stmfd	sp!, {r0-r6} ; Preserves registers only up to r6
-
-brs_$label  BlendRow $BlendPixel
-
-		ldmfd	sp!, {r0-r6}
-
-		MEND
-
-
-;-----------------------------------------------------------------------------
-; Pix Copy.
-; NOTE! Cache line size of ARM1136JF-S and ARM1136J-S is 32 bytes (8 pixels).
-;
-; @param dst			Destination	pixels						(r0)
-; @param src			Source pixels							(r1)
-; @param len			Length									(r2)
-;
-;  @note Trashes r3-r10
-;-----------------------------------------------------------------------------
-		MACRO
-$label	PixCpy $dst, $src, $len
-
-		pld		[$src]
-
-pcpy_loop_$label
-		; Copy 8 pixels per loop iteration
-		pld		[$src, #96]
-		subs	$len, $len, #8
-		ldmgeia	$src!, {r3-r10}
-		stmgeia	$dst!, {r3-r10}
-		bgt		pcpy_loop_$label
-
-pcpy_remaining_$label
-
-		; Copy up to 7 remaining pixels
-
-		; Copy 4 pixels
-		tst		$len, #4
-		ldmneia	$src!, {r3-r6}
-		stmneia	$dst!, {r3-r6}
-
-		tst		$len, #2
-		ldmneia	$src!, {r3-r4}
-		stmneia	$dst!, {r3-r4}
-
-		tst		$len, #1
-		ldrne	r3, [$src]
-		strne 	r3, [$dst]
-
-		MEND
-
-;-----------------------------------------------------------------------------
-; General Pix Copy. Maximum 8 pixels at time. Restores all registers.
-;
-; @param dst			Destination	pixels						(r0)
-; @param src			Source pixels							(r1)
-; @param len			Length									(r2)
-;
-;  @note Trashes r3-r10
-;-----------------------------------------------------------------------------
-		MACRO
-$label	PixCpySafe $dst, $src, $len
-
-		stmfd	sp!, {r0-r6} ; Preserves registers only up to r6
-
-pcs_$label  PixCpy $dst, $src, $len
-
-		ldmfd	sp!, {r0-r6}		; pop
-
-		MEND
-
-
-;-----------------------------------------------------------------------------
-; A macro for source over compositing one pixel and saving the result to
-; dst register.
-;
-;  @param dst      Destination register, must contain destination pixel upon entry
-;  @param src 	   Source register, must contain source pixel upon entry
-;  @param const_alpha Constant source alpha
-;  @param r14	   Component half 0x800080
-;
-;  @note Trashes const_alpha, r8
-;-----------------------------------------------------------------------------
-		MACRO
-$label	PixelSourceOver $dst, $src, $const_alpha
-
-		; Negate src and extract alpha
-		mvn		$const_alpha, $src ; bitwise not
-		uxtb	$const_alpha, $const_alpha, ror #24	; r3 = ((r3 & 0xFF000000) >> 24);
-
-		;cmp		$const_alpha, #255	; test for full transparency ( negated )
-		;beq		exit_$label
-		cmp     $const_alpha, #0	            ; test for full opacity ( negated )
-		moveq	$dst, $src
-		beq		exit_$label
-
-		ByteMul	$dst, $dst, $const_alpha
-		add		$dst, $src, $dst
-
-exit_$label
-		MEND
-
-;-----------------------------------------------------------------------------
-; A macro for source over compositing one pixel and saving the result to
-; dst register.
-;
-;  @param dst      Destination register, must contain destination pixel upon entry
-;  @param src 	   Source register, must contain source pixel upon entry
-;  @param const_alpha Constant source alpha
-;  @param r14	   Component half 0x800080
-;
-;  @note Trashes src, const_alpha, r8
-;-----------------------------------------------------------------------------
-		MACRO
-$label	PixelSourceOverConstAlpha $dst, $src, $const_alpha
-
-		; store alpha because we are going to trash it
-		stmfd	sp!, {$const_alpha}
-
-		ByteMul	$src, $src, $const_alpha
-
-		; Negate src and extract alpha
-		mvn		$const_alpha, $src ; bitwise not
-		uxtb	$const_alpha, $const_alpha, ror #24	; r3 = ((r3 & 0xFF000000) >> 24);
-
-		ByteMul	$dst, $dst, $const_alpha
-
-		add		$dst, $src, $dst
-
-		; recover alpha
-		ldmfd	sp!, {$const_alpha}
-
-		MEND
-
-;-----------------------------------------------------------------------------
-; A macro for source over compositing one pixel and saving the result to
-; a register.
-;
-;  @param dst      Destination register, must contain destination pixel upon entry
-;  @param src 	   Source register, must contain source pixel upon entry
-;  @param const_alpha Constant source alpha
-;  @param r14	   Component half 0x800080
-;
-;  @note Trashes src, r8
-;-----------------------------------------------------------------------------
-		MACRO
-$label	PixelSourceConstAlpha $dst, $src, $const_alpha
-
-		; store r2 and r14 because we are going to trash them
-		stmfd	sp!, {r2, r14}
-
-		rsb		r2, $const_alpha, #255
-		InterpolatePixel255 $dst, $src, $const_alpha, $dst, r2
-
-		; recover r2 and r14
-		ldmfd	sp!, {r2, r14}
-
-		MEND
-
-		END ; File end
diff --git a/src/gui/painting/qdrawhelper_armv6_rvct.s b/src/gui/painting/qdrawhelper_armv6_rvct.s
deleted file mode 100644
index 180980a..0000000
--- a/src/gui/painting/qdrawhelper_armv6_rvct.s
+++ /dev/null
@@ -1,177 +0,0 @@
-;****************************************************************************
-;**
-;** 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.
-;**
-;**
-;**
-;**
-;**
-;**
-;**
-;**
-;** $QT_END_LICENSE$
-;**
-;****************************************************************************
-
-;
-;  W A R N I N G
-;  -------------
-;
-; This file is not part of the Qt API.  It exists purely as an
-; implementation detail.  This header file may change from version to
-; version without notice, or even be removed.
-;
-; We mean it.
-;
-
-		ARM
-		PRESERVE8
-
-		INCLUDE		qdrawhelper_armv6_rvct.inc
-
-;-----------------------------------------------------------------------------
-; qt_memfill32_armv6
-;
-; @brief Not yet in use!
-;
-; @param dest			Destination	buffer						(r0)
-; @param value			Value									(r1)
-; @param count			Count									(r2)
-;
-;---------------------------------------------------------------------------
-qt_memfill32_armv6 Function
-		stmfd	sp!, {r4-r12, r14}
-
-		mov		r3, r1
-		mov		r4, r1
-		mov		r5, r1
-		mov		r6, r1
-		mov		r7, r1
-		mov		r8, r1
-		mov		r9, r1
-
-mfill_loop
-		; Fill 32 pixels per loop iteration
-		subs	r2, r2, #32
-		stmgeia	r0!, {r1, r3, r4, r5, r6, r7, r8, r9}
-		stmgeia	r0!, {r1, r3, r4, r5, r6, r7, r8, r9}
-		stmgeia	r0!, {r1, r3, r4, r5, r6, r7, r8, r9}
-		stmgeia	r0!, {r1, r3, r4, r5, r6, r7, r8, r9}
-		bgt		mfill_loop
-
-mfill_remaining
-
-		; Fill up to 31 remaining pixels
-
-		; Fill 16 pixels
-		tst		r2, #16
-		stmneia	r0!, {r1, r3, r4, r5, r6, r7, r8, r9}
-		stmneia	r0!, {r1, r3, r4, r5, r6, r7, r8, r9}
-
-		; Fill 8 pixels
-		tst		r2, #8
-		stmneia	r0!, {r1, r3, r4, r5, r6, r7, r8, r9}
-
-		; Fill 4 pixels
-		tst		r2, #4
-		stmneia	r0!, {r1, r3, r4, r5}
-
-		; Fill 2 pixels
-		tst		r2, #2
-		stmneia	r0!, {r1, r3}
-
-		; Fill last one
-		tst		r2, #1
-		strne 	r1, [r0]
-
-		ldmfd	sp!, {r4-r12, pc}		; pop and return
-
-;-----------------------------------------------------------------------------
-; comp_func_Source_arm
-;
-; @brief
-;
-; @param dest			Destination	buffer						(r0)
-; @param src			Source buffer							(r1)
-; @param length			Length									(r2)
-; @param const_alpha	Constant alpha							(r3)
-;
-;---------------------------------------------------------------------------
-comp_func_Source_armv6 Function
-		stmfd	sp!, {r4-r12, r14}
-
-		cmp		r3, #255 ; if(r3 == 255)
-		bne		src2 ; branch if not
-
-src1	PixCpy	r0, r1, r2
-
-		ldmfd	sp!, {r4-r12, pc}		; pop and return
-
-src2
-		;ldr		r14, =ComponentHalf ; load 0x800080 to r14
-		mov		r14, #0x800000
-		add		r14, r14, #0x80
-
-src22   BlendRow PixelSourceConstAlpha
-
-		ldmfd	sp!, {r4-r12, pc}		; pop and return
-
-;-----------------------------------------------------------------------------
-; comp_func_SourceOver_arm
-;
-; @brief
-;
-; @param dest			Destination	buffer						(r0)
-; @param src			Source buffer							(r1)
-; @param length			Length									(r2)
-; @param const_alpha	Constant alpha							(r3)
-;
-;---------------------------------------------------------------------------
-comp_func_SourceOver_armv6 Function
-		stmfd	sp!, {r4-r12, r14}
-
-		;ldr		r14, =ComponentHalf ; load 0x800080 to r14
-		mov		r14, #0x800000
-		add		r14, r14, #0x80
-
-		cmp		r3, #255 ; if(r3 == 255)
-		bne		srcovr2 ; branch if not
-
-srcovr1	 BlendRow PixelSourceOver
-
-		ldmfd	sp!, {r4-r12, pc}		; pop and return
-
-srcovr2
-
-srcovr22  BlendRow PixelSourceOverConstAlpha
-
-		ldmfd	sp!, {r4-r12, pc}		; pop and return
-
-
-		END	; File end
diff --git a/src/gui/styles/qs60style.cpp b/src/gui/styles/qs60style.cpp
index 1e32bd8..50e8a5b 100644
--- a/src/gui/styles/qs60style.cpp
+++ b/src/gui/styles/qs60style.cpp
@@ -2620,6 +2620,8 @@ QSize QS60Style::sizeFromContents(ContentsType ct, const QStyleOption *opt,
             sz = QCommonStyle::sizeFromContents( ct, opt, csz, widget);
             break;
     }
+    if (!sz.isValid())
+        sz = QCommonStyle::sizeFromContents(ct, opt, csz, widget);
     return sz;
 }
 
diff --git a/src/gui/util/qcompleter.cpp b/src/gui/util/qcompleter.cpp
index e718212..bcd601b 100644
--- a/src/gui/util/qcompleter.cpp
+++ b/src/gui/util/qcompleter.cpp
@@ -782,7 +782,8 @@ QMatchData QUnsortedModelEngine::filter(const QString& part, const QModelIndex&
 ///////////////////////////////////////////////////////////////////////////////
 QCompleterPrivate::QCompleterPrivate()
 : widget(0), proxy(0), popup(0), cs(Qt::CaseSensitive), role(Qt::EditRole), column(0),
-  maxVisibleItems(7), sorting(QCompleter::UnsortedModel), wrap(true), eatFocusOut(true)
+  maxVisibleItems(7), sorting(QCompleter::UnsortedModel), wrap(true), eatFocusOut(true),
+  hiddenBecauseNoMatch(false)
 {
 }
 
@@ -921,12 +922,14 @@ void QCompleterPrivate::showPopup(const QRect& rect)
 void QCompleterPrivate::_q_fileSystemModelDirectoryLoaded(const QString &path)
 {
     Q_Q(QCompleter);
-#ifndef QT_NO_LINEEDIT
-    QLineEdit *lineEdit = qobject_cast<QLineEdit *>(widget);
-    //the path given by QFileSystemModel does not end with /
-    if (lineEdit && !lineEdit->text().isEmpty() && !q->completionPrefix().isEmpty() && q->completionPrefix() != path + QLatin1Char('/'))
+    // Slot called when QFileSystemModel has finished loading.
+    // If we hide the popup because there was no match because the model was not loaded yet,
+    // we re-start the completion when we get the results
+    if (hiddenBecauseNoMatch
+        && prefix.startsWith(path) && prefix != (path + '/')
+        && widget) {
         q->complete();
-#endif
+    }
 }
 
 /*!
@@ -1200,6 +1203,7 @@ bool QCompleter::eventFilter(QObject *o, QEvent *e)
     Q_D(QCompleter);
 
     if (d->eatFocusOut && o == d->widget && e->type() == QEvent::FocusOut) {
+        d->hiddenBecauseNoMatch = false;
         if (d->popup && d->popup->isVisible())
             return true;
     }
@@ -1378,6 +1382,7 @@ void QCompleter::complete(const QRect& rect)
 {
     Q_D(QCompleter);
     QModelIndex idx = d->proxy->currentIndex(false);
+    d->hiddenBecauseNoMatch = false;
     if (d->mode == QCompleter::InlineCompletion) {
         if (idx.isValid())
             d->_q_complete(idx, true);
@@ -1389,6 +1394,7 @@ void QCompleter::complete(const QRect& rect)
         || (d->mode == QCompleter::UnfilteredPopupCompletion && d->proxy->rowCount() == 0)) {
         if (d->popup)
             d->popup->hide(); // no suggestion, hide
+        d->hiddenBecauseNoMatch = true;
         return;
     }
 
diff --git a/src/gui/util/qcompleter_p.h b/src/gui/util/qcompleter_p.h
index 8f00793..19b76e5 100644
--- a/src/gui/util/qcompleter_p.h
+++ b/src/gui/util/qcompleter_p.h
@@ -93,6 +93,7 @@ public:
 
     bool eatFocusOut;
     QRect popupRect;
+    bool hiddenBecauseNoMatch;
 
     void showPopup(const QRect&);
     void _q_complete(QModelIndex, bool = false);
diff --git a/src/gui/widgets/qmainwindow.cpp b/src/gui/widgets/qmainwindow.cpp
index 1183be6..d971f61 100644
--- a/src/gui/widgets/qmainwindow.cpp
+++ b/src/gui/widgets/qmainwindow.cpp
@@ -78,6 +78,7 @@ public:
         : layout(0), explicitIconSize(false), toolButtonStyle(Qt::ToolButtonIconOnly)
 #ifdef Q_WS_MAC
             , useHIToolBar(false)
+            , activateUnifiedToolbarAfterFullScreen(false)
 #endif
 #if !defined(QT_NO_DOCKWIDGET) && !defined(QT_NO_CURSOR)
             , hasOldCursor(false) , cursorAdjusted(false)
@@ -89,6 +90,7 @@ public:
     Qt::ToolButtonStyle toolButtonStyle;
 #ifdef Q_WS_MAC
     bool useHIToolBar;
+    bool activateUnifiedToolbarAfterFullScreen;
 #endif
     void init();
     QList<int> hoverSeparator;
@@ -1501,8 +1503,6 @@ bool QMainWindow::event(QEvent *event)
     \i Before Qt 4.5, if you called showFullScreen() on the main window, the QToolbar would
         disappear since it is considered to be part of the title bar. Qt 4.5 and up will now work around this by pulling
         the toolbars out and back into the regular toolbar and vice versa when you swap out.
-        However, a good practice would be that turning off the unified toolbar before you call
-        showFullScreen() and restoring it after you call showNormal().
     \endlist
 
     Setting this back to false will remove these restrictions.
diff --git a/src/gui/widgets/qmainwindowlayout_p.h b/src/gui/widgets/qmainwindowlayout_p.h
index e1b981c..3e1a95d 100644
--- a/src/gui/widgets/qmainwindowlayout_p.h
+++ b/src/gui/widgets/qmainwindowlayout_p.h
@@ -335,6 +335,7 @@ public:
     void cleanUpMacToolbarItems();
     void fixSizeInUnifiedToolbar(QToolBar *tb) const;
     bool useHIToolBar;
+    bool activateUnifiedToolbarAfterFullScreen;
     void syncUnifiedToolbarVisibility();
     bool blockVisiblityCheck;
 #endif