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

Conflicts:
	src/gui/painting/qtextureglyphcache.cpp

45 files changed, 1232 insertions, 612 deletions

diff --git a/src/gui/accessible/qaccessible.h b/src/gui/accessible/qaccessible.h
index 96fe91c..8f6d9d9 100644
--- a/src/gui/accessible/qaccessible.h
+++ b/src/gui/accessible/qaccessible.h
@@ -310,7 +310,8 @@ namespace QAccessible2
         TextInterface,
         EditableTextInterface,
         ValueInterface,
-        TableInterface
+        TableInterface,
+        ActionInterface
     };
 }
 
@@ -319,6 +320,7 @@ class QAccessibleTextInterface;
 class QAccessibleEditableTextInterface;
 class QAccessibleValueInterface;
 class QAccessibleTableInterface;
+class QAccessibleActionInterface;
 
 class Q_GUI_EXPORT QAccessibleInterface : public QAccessible
 {
@@ -376,6 +378,9 @@ public:
     inline QAccessibleTableInterface *tableInterface()
     { return reinterpret_cast<QAccessibleTableInterface *>(cast_helper(QAccessible2::TableInterface)); }
 
+    inline QAccessibleActionInterface *actionInterface()
+    { return reinterpret_cast<QAccessibleActionInterface *>(cast_helper(QAccessible2::ActionInterface)); }
+
 private:
     QAccessible2Interface *cast_helper(QAccessible2::InterfaceType);
 };
diff --git a/src/gui/accessible/qaccessible2.cpp b/src/gui/accessible/qaccessible2.cpp
index f731962..0867368 100644
--- a/src/gui/accessible/qaccessible2.cpp
+++ b/src/gui/accessible/qaccessible2.cpp
@@ -108,6 +108,18 @@ QT_BEGIN_NAMESPACE
     \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
 */
 
+/*!
+    \class QAccessibleActionInterface
+    \ingroup accessibility
+    \internal
+    \preliminary
+
+    \brief The QAccessibleActionInterface class implements support for
+    the IAccessibleAction interface.
+
+    \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
+*/
+
 QAccessibleSimpleEditableTextInterface::QAccessibleSimpleEditableTextInterface(
                 QAccessibleInterface *accessibleInterface)
     : iface(accessibleInterface)
diff --git a/src/gui/accessible/qaccessible2.h b/src/gui/accessible/qaccessible2.h
index 3281509..435c640 100644
--- a/src/gui/accessible/qaccessible2.h
+++ b/src/gui/accessible/qaccessible2.h
@@ -81,6 +81,7 @@ inline QAccessible2Interface *qAccessibleValueCastHelper() { return 0; }
 inline QAccessible2Interface *qAccessibleTextCastHelper() { return 0; }
 inline QAccessible2Interface *qAccessibleEditableTextCastHelper() { return 0; }
 inline QAccessible2Interface *qAccessibleTableCastHelper() { return 0; }
+inline QAccessible2Interface *qAccessibleActionCastHelper() { return 0; }
 
 #define Q_ACCESSIBLE_OBJECT \
     public: \
@@ -95,6 +96,8 @@ inline QAccessible2Interface *qAccessibleTableCastHelper() { return 0; }
             return qAccessibleValueCastHelper(); \
         case QAccessible2::TableInterface: \
             return qAccessibleTableCastHelper(); \
+        case QAccessible2::ActionInterface: \
+            return qAccessibleActionCastHelper(); \
         } \
         return 0; \
     } \
@@ -208,6 +211,19 @@ public:
                              int *columnSpan, bool *isSelected) = 0;
 };
 
+class Q_GUI_EXPORT QAccessibleActionInterface : public QAccessible2Interface
+{
+public:
+    inline QAccessible2Interface *qAccessibleActionCastHelper() { return this; }
+
+    virtual int actionCount() = 0;
+    virtual void doAction(int actionIndex) = 0;
+    virtual QString description(int actionIndex) = 0;
+    virtual QString name(int actionIndex) = 0;
+    virtual QString localizedName(int actionIndex) = 0;
+    virtual QStringList keyBindings(int actionIndex) = 0;
+};
+
 #endif // QT_NO_ACCESSIBILITY
 
 QT_END_NAMESPACE
diff --git a/src/gui/dialogs/qfiledialog_win.cpp b/src/gui/dialogs/qfiledialog_win.cpp
index b59c28b..8089b43 100644
--- a/src/gui/dialogs/qfiledialog_win.cpp
+++ b/src/gui/dialogs/qfiledialog_win.cpp
@@ -251,10 +251,10 @@ static OPENFILENAME* qt_win_make_OFN(QWidget *parent,
     ofn->nMaxFile = maxLen;
     ofn->lpstrInitialDir = (wchar_t*)tInitDir.utf16();
     ofn->lpstrTitle = (wchar_t*)tTitle.utf16();
-    ofn->Flags = (OFN_NOCHANGEDIR | OFN_HIDEREADONLY | OFN_EXPLORER);
+    ofn->Flags = (OFN_NOCHANGEDIR | OFN_HIDEREADONLY | OFN_EXPLORER | OFN_PATHMUSTEXIST);
     if (mode == QFileDialog::ExistingFile ||
          mode == QFileDialog::ExistingFiles)
-        ofn->Flags |= (OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST);
+        ofn->Flags |= (OFN_FILEMUSTEXIST);
     if (mode == QFileDialog::ExistingFiles)
         ofn->Flags |= (OFN_ALLOWMULTISELECT);
     if (!(options & QFileDialog::DontConfirmOverwrite))
diff --git a/src/gui/graphicsview/qgraphicsanchorlayout.cpp b/src/gui/graphicsview/qgraphicsanchorlayout.cpp
index ffbb67c..c39e8a6 100644
--- a/src/gui/graphicsview/qgraphicsanchorlayout.cpp
+++ b/src/gui/graphicsview/qgraphicsanchorlayout.cpp
@@ -118,6 +118,23 @@ QGraphicsAnchor::~QGraphicsAnchor()
 }
 
 /*!
+    Sets the size policy of the anchor to \a policy.
+*/
+void QGraphicsAnchor::setSizePolicy(QSizePolicy::Policy policy)
+{
+    Q_D(QGraphicsAnchor);
+    d->setSizePolicy(policy);
+}
+/*!
+    Returns the size policy of the anchor. The default size policy is QSizePolicy::Fixed
+*/
+QSizePolicy::Policy QGraphicsAnchor::sizePolicy() const
+{
+    Q_D(const QGraphicsAnchor);
+    return d->sizePolicy;
+}
+
+/*!
     \property QGraphicsAnchor::spacing
     \brief the space between items in the QGraphicsAnchorLayout.
 
@@ -306,6 +323,13 @@ void QGraphicsAnchorLayout::addAnchors(QGraphicsLayoutItem *firstItem,
 void QGraphicsAnchorLayout::setHorizontalSpacing(qreal spacing)
 {
     Q_D(QGraphicsAnchorLayout);
+
+    // ### We don't support negative spacing yet
+    if (spacing < 0) {
+        spacing = 0;
+        qWarning() << "QGraphicsAnchorLayout does not support negative spacing.";
+    }
+
     d->spacings[0] = spacing;
     invalidate();
 }
@@ -318,6 +342,13 @@ void QGraphicsAnchorLayout::setHorizontalSpacing(qreal spacing)
 void QGraphicsAnchorLayout::setVerticalSpacing(qreal spacing)
 {
     Q_D(QGraphicsAnchorLayout);
+
+    // ### We don't support negative spacing yet
+    if (spacing < 0) {
+        spacing = 0;
+        qWarning() << "QGraphicsAnchorLayout does not support negative spacing.";
+    }
+
     d->spacings[1] = spacing;
     invalidate();
 }
@@ -327,11 +358,23 @@ void QGraphicsAnchorLayout::setVerticalSpacing(qreal spacing)
 
     If an item is anchored with no spacing associated with the anchor, it will use the default
     spacing.
+
+    Currently QGraphicsAnchorLayout does not support negative default spacings.
+
     \sa setHorizontalSpacing(), setVerticalSpacing()
 */
 void QGraphicsAnchorLayout::setSpacing(qreal spacing)
 {
     Q_D(QGraphicsAnchorLayout);
+
+    // ### Currently we do not support negative anchors inside the graph.
+    // To avoid those being created by a negative spacing, we must
+    // make this test.
+    if (spacing < 0) {
+        spacing = 0;
+        qWarning() << "QGraphicsAnchorLayout does not support negative spacing.";
+    }
+
     d->spacings[0] = d->spacings[1] = spacing;
     invalidate();
 }
diff --git a/src/gui/graphicsview/qgraphicsanchorlayout.h b/src/gui/graphicsview/qgraphicsanchorlayout.h
index 99dbf92..f09ac43 100644
--- a/src/gui/graphicsview/qgraphicsanchorlayout.h
+++ b/src/gui/graphicsview/qgraphicsanchorlayout.h
@@ -65,6 +65,8 @@ class Q_GUI_EXPORT QGraphicsAnchor : public QObject
 public:
     void setSpacing(qreal spacing);
     void unsetSpacing();
+    void setSizePolicy(QSizePolicy::Policy policy);
+    QSizePolicy::Policy sizePolicy() const;
     qreal spacing() const;
     ~QGraphicsAnchor();
 private:
diff --git a/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp b/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
index f9b5c8c..8c8c303 100644
--- a/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
+++ b/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
@@ -53,7 +53,8 @@ QT_BEGIN_NAMESPACE
 
 
 QGraphicsAnchorPrivate::QGraphicsAnchorPrivate(int version)
-    : QObjectPrivate(version), layoutPrivate(0), data(0)
+    : QObjectPrivate(version), layoutPrivate(0), data(0),
+      sizePolicy(QSizePolicy::Fixed)
 {
 }
 
@@ -62,6 +63,14 @@ QGraphicsAnchorPrivate::~QGraphicsAnchorPrivate()
     layoutPrivate->removeAnchor(data->from, data->to);
 }
 
+void QGraphicsAnchorPrivate::setSizePolicy(QSizePolicy::Policy policy)
+{
+    if (sizePolicy != policy) {
+        sizePolicy = policy;
+        layoutPrivate->q_func()->invalidate();
+    }
+}
+
 void QGraphicsAnchorPrivate::setSpacing(qreal value)
 {
     if (data) {
@@ -92,28 +101,11 @@ qreal QGraphicsAnchorPrivate::spacing() const
 }
 
 
-static void sizeHintsFromItem(QGraphicsLayoutItem *item,
-                             const QGraphicsAnchorLayoutPrivate::Orientation orient,
-                             qreal *minSize, qreal *prefSize,
-                             qreal *expSize, qreal *maxSize)
+static void internalSizeHints(QSizePolicy::Policy policy,
+                              qreal minSizeHint, qreal prefSizeHint, qreal maxSizeHint,
+                              qreal *minSize, qreal *prefSize,
+                              qreal *expSize, qreal *maxSize)
 {
-    QSizePolicy::Policy policy;
-    qreal minSizeHint;
-    qreal prefSizeHint;
-    qreal maxSizeHint;
-
-    if (orient == QGraphicsAnchorLayoutPrivate::Horizontal) {
-        policy = item->sizePolicy().horizontalPolicy();
-        minSizeHint = item->effectiveSizeHint(Qt::MinimumSize).width();
-        prefSizeHint = item->effectiveSizeHint(Qt::PreferredSize).width();
-        maxSizeHint = item->effectiveSizeHint(Qt::MaximumSize).width();
-    } else {
-        policy = item->sizePolicy().verticalPolicy();
-        minSizeHint = item->effectiveSizeHint(Qt::MinimumSize).height();
-        prefSizeHint = item->effectiveSizeHint(Qt::PreferredSize).height();
-        maxSizeHint = item->effectiveSizeHint(Qt::MaximumSize).height();
-    }
-
     // minSize, prefSize and maxSize are initialized
     // with item's preferred Size: this is QSizePolicy::Fixed.
     //
@@ -139,7 +131,7 @@ static void sizeHintsFromItem(QGraphicsLayoutItem *item,
 
     // Note that these two initializations are affected by the previous flags
     if (policy & QSizePolicy::IgnoreFlag)
-        *prefSize = *maxSize;
+        *prefSize = *minSize;
     else
         *prefSize = prefSizeHint;
 
@@ -153,38 +145,63 @@ void AnchorData::refreshSizeHints(qreal effectiveSpacing)
 {
     const bool isInternalAnchor = from->m_item == to->m_item;
 
+    QSizePolicy::Policy policy;
+    qreal minSizeHint;
+    qreal prefSizeHint;
+    qreal maxSizeHint;
+
     if (isInternalAnchor) {
         const QGraphicsAnchorLayoutPrivate::Orientation orient =
             QGraphicsAnchorLayoutPrivate::edgeOrientation(from->m_edge);
+        const Qt::AnchorPoint centerEdge =
+            QGraphicsAnchorLayoutPrivate::pickEdge(Qt::AnchorHorizontalCenter, orient);
+        bool hasCenter = (from->m_edge == centerEdge || to->m_edge == centerEdge);
 
         if (isLayoutAnchor) {
             minSize = 0;
             prefSize = 0;
             expSize = 0;
             maxSize = QWIDGETSIZE_MAX;
+            if (hasCenter)
+                maxSize /= 2;
+            return;
         } else {
-            QGraphicsLayoutItem *item = from->m_item;
-            sizeHintsFromItem(item, orient, &minSize, &prefSize, &expSize, &maxSize);
-        }
 
-        const Qt::AnchorPoint centerEdge =
-            QGraphicsAnchorLayoutPrivate::pickEdge(Qt::AnchorHorizontalCenter, orient);
-        bool hasCenter = (from->m_edge == centerEdge || to->m_edge == centerEdge);
+            QGraphicsLayoutItem *item = from->m_item;
+            if (orient == QGraphicsAnchorLayoutPrivate::Horizontal) {
+                policy = item->sizePolicy().horizontalPolicy();
+                minSizeHint = item->effectiveSizeHint(Qt::MinimumSize).width();
+                prefSizeHint = item->effectiveSizeHint(Qt::PreferredSize).width();
+                maxSizeHint = item->effectiveSizeHint(Qt::MaximumSize).width();
+            } else {
+                policy = item->sizePolicy().verticalPolicy();
+                minSizeHint = item->effectiveSizeHint(Qt::MinimumSize).height();
+                prefSizeHint = item->effectiveSizeHint(Qt::PreferredSize).height();
+                maxSizeHint = item->effectiveSizeHint(Qt::MaximumSize).height();
+            }
 
-        if (hasCenter) {
-            minSize /= 2;
-            prefSize /= 2;
-            expSize /= 2;
-            maxSize /= 2;
+            if (hasCenter) {
+                minSizeHint /= 2;
+                prefSizeHint /= 2;
+                maxSizeHint /= 2;
+            }
         }
-
-    } else if (!hasSize) {
-        // Anchor has no size defined, use given default information
-        minSize = effectiveSpacing;
-        prefSize = effectiveSpacing;
-        expSize = effectiveSpacing;
-        maxSize = effectiveSpacing;
+    } else {
+        Q_ASSERT(graphicsAnchor);
+        policy = graphicsAnchor->sizePolicy();
+        minSizeHint = 0;
+        if (hasSize) {
+            // One can only configure the preferred size of a normal anchor. Their minimum and
+            // maximum "size hints" are always 0 and QWIDGETSIZE_MAX, correspondingly. However,
+            // their effective size hints might be narrowed down due to their size policies.
+            prefSizeHint = prefSize;
+        } else {
+            prefSizeHint = effectiveSpacing;
+        }
+        maxSizeHint = QWIDGETSIZE_MAX;
     }
+    internalSizeHints(policy, minSizeHint, prefSizeHint, maxSizeHint, 
+                      &minSize, &prefSize, &expSize, &maxSize);
 
     // Set the anchor effective sizes to preferred.
     //
@@ -250,44 +267,61 @@ void ParallelAnchorData::refreshSizeHints_helper(qreal effectiveSpacing,
      0 is at Preferred
      1 is at Maximum
 */
-static qreal getFactor(qreal value, qreal min, qreal pref, qreal max)
-{
-    // ### Maybe remove some of the assertions? (since outside is asserting us)
-    Q_ASSERT(value > min || qFuzzyCompare(value, min));
-    Q_ASSERT(value < max || qFuzzyCompare(value, max));
-
-    if (qFuzzyCompare(value, min)) {
-        return -1.0;
-    } else if (qFuzzyCompare(value, pref)) {
-        return 0.0;
-    } else if (qFuzzyCompare(value, max)) {
-        return 1.0;
-    } else if (value < pref) {
-        // Since value < pref and value != pref and min <= value,
-        // we can assert that min < pref.
-        Q_ASSERT(min < pref);
-        return (value - min) / (pref - min) - 1;
+static QPair<QGraphicsAnchorLayoutPrivate::Interval, qreal> getFactor(qreal value, qreal min,
+                                                                      qreal pref, qreal exp,
+                                                                      qreal max)
+{
+    QGraphicsAnchorLayoutPrivate::Interval interval;
+    qreal lower;
+    qreal upper;
+
+    if (value < pref) {
+        interval = QGraphicsAnchorLayoutPrivate::MinToPreferred;
+        lower = min;
+        upper = pref;
+    } else if (value < exp) {
+        interval = QGraphicsAnchorLayoutPrivate::PreferredToExpanding;
+        lower = pref;
+        upper = exp;
     } else {
-        // Since value > pref and value != pref and max >= value,
-        // we can assert that max > pref.
-        Q_ASSERT(max > pref);
-        return (value - pref) / (max - pref);
+        interval = QGraphicsAnchorLayoutPrivate::ExpandingToMax;
+        lower = exp;
+        upper = max;
     }
+
+    qreal progress;
+    if (upper == lower) {
+        progress = 0;
+    } else {
+        progress = (value - lower) / (upper - lower);
+    }
+
+    return qMakePair(interval, progress);
 }
 
-static qreal getExpandingFactor(const qreal &expSize, const qreal &sizeAtPreferred,
-                                const qreal &sizeAtExpanding, const qreal &sizeAtMaximum)
+static qreal interpolate(const QPair<QGraphicsAnchorLayoutPrivate::Interval, qreal> &factor,
+                         qreal min, qreal pref,
+                         qreal exp, qreal max)
 {
-    const qreal lower = qMin(sizeAtPreferred, sizeAtMaximum);
-    const qreal upper = qMax(sizeAtPreferred, sizeAtMaximum);
-    const qreal boundedExpSize = qBound(lower, expSize, upper);
+    qreal lower;
+    qreal upper;
 
-    const qreal bandSize = sizeAtMaximum - boundedExpSize;
-    if (bandSize == 0) {
-        return 0;
-    } else {
-        return (sizeAtExpanding - boundedExpSize) / bandSize;
+    switch (factor.first) {
+    case QGraphicsAnchorLayoutPrivate::MinToPreferred:
+        lower = min;
+        upper = pref;
+        break;
+    case QGraphicsAnchorLayoutPrivate::PreferredToExpanding:
+        lower = pref;
+        upper = exp;
+        break;
+    case QGraphicsAnchorLayoutPrivate::ExpandingToMax:
+        lower = exp;
+        upper = max;
+        break;
     }
+
+    return lower + factor.second * (upper - lower);
 }
 
 void SequentialAnchorData::updateChildrenSizes()
@@ -307,27 +341,22 @@ void SequentialAnchorData::updateChildrenSizes()
     // Band here refers if the value is in the Minimum To Preferred
     // band (the lower band) or the Preferred To Maximum (the upper band).
 
-    const qreal minFactor = getFactor(sizeAtMinimum, minSize, prefSize, maxSize);
-    const qreal prefFactor = getFactor(sizeAtPreferred, minSize, prefSize, maxSize);
-    const qreal maxFactor = getFactor(sizeAtMaximum, minSize, prefSize, maxSize);
-    const qreal expFactor = getExpandingFactor(expSize, sizeAtPreferred, sizeAtExpanding, sizeAtMaximum);
+    const QPair<QGraphicsAnchorLayoutPrivate::Interval, qreal> minFactor =
+        getFactor(sizeAtMinimum, minSize, prefSize, expSize, maxSize);
+    const QPair<QGraphicsAnchorLayoutPrivate::Interval, qreal> prefFactor =
+        getFactor(sizeAtPreferred, minSize, prefSize, expSize, maxSize);
+    const QPair<QGraphicsAnchorLayoutPrivate::Interval, qreal> expFactor =
+        getFactor(sizeAtExpanding, minSize, prefSize, expSize, maxSize);
+    const QPair<QGraphicsAnchorLayoutPrivate::Interval, qreal> maxFactor =
+        getFactor(sizeAtMaximum, minSize, prefSize, expSize, maxSize);
 
     for (int i = 0; i < m_edges.count(); ++i) {
         AnchorData *e = m_edges.at(i);
 
-        qreal bandSize = minFactor > 0 ? e->maxSize - e->prefSize : e->prefSize - e->minSize;
-        e->sizeAtMinimum = e->prefSize + bandSize * minFactor;
-
-        bandSize = prefFactor > 0 ? e->maxSize - e->prefSize : e->prefSize - e->minSize;
-        e->sizeAtPreferred = e->prefSize + bandSize * prefFactor;
-
-        bandSize = maxFactor > 0 ? e->maxSize - e->prefSize : e->prefSize - e->minSize;
-        e->sizeAtMaximum = e->prefSize + bandSize * maxFactor;
-
-        const qreal lower = qMin(e->sizeAtPreferred, e->sizeAtMaximum);
-        const qreal upper = qMax(e->sizeAtPreferred, e->sizeAtMaximum);
-        const qreal edgeBoundedExpSize = qBound(lower, e->expSize, upper);
-        e->sizeAtExpanding = edgeBoundedExpSize + expFactor * (e->sizeAtMaximum - edgeBoundedExpSize);
+        e->sizeAtMinimum = interpolate(minFactor, e->minSize, e->prefSize, e->expSize, e->maxSize);
+        e->sizeAtPreferred = interpolate(prefFactor, e->minSize, e->prefSize, e->expSize, e->maxSize);
+        e->sizeAtExpanding = interpolate(expFactor, e->minSize, e->prefSize, e->expSize, e->maxSize);
+        e->sizeAtMaximum = interpolate(maxFactor, e->minSize, e->prefSize, e->expSize, e->maxSize);
 
         e->updateChildrenSizes();
     }
@@ -494,36 +523,46 @@ static bool simplifySequentialChunk(Graph<AnchorVertex, AnchorData> *graph,
                                     const QVector<AnchorVertex*> &vertices,
                                     AnchorVertex *after)
 {
-    int i;
+    AnchorData *data = graph->edgeData(before, vertices.first());
+    Q_ASSERT(data);
+
+    const bool forward = (before == data->from);
+    QVector<AnchorVertex *> orderedVertices;
+
+    if (forward) {
+        orderedVertices = vertices;
+    } else {
+        qSwap(before, after);
+        for (int i = vertices.count() - 1; i >= 0; --i)
+            orderedVertices.append(vertices.at(i));
+    }
+
 #if defined(QT_DEBUG) && 0
     QString strVertices;
-    for (i = 0; i < vertices.count(); ++i)
-        strVertices += QString::fromAscii("%1 - ").arg(vertices.at(i)->toString());
+    for (int i = 0; i < orderedVertices.count(); ++i) {
+        strVertices += QString::fromAscii("%1 - ").arg(orderedVertices.at(i)->toString());
+    }
     QString strPath = QString::fromAscii("%1 - %2%3").arg(before->toString(), strVertices, after->toString());
     qDebug("simplifying [%s] to [%s - %s]", qPrintable(strPath), qPrintable(before->toString()), qPrintable(after->toString()));
 #endif
 
     SequentialAnchorData *sequence = new SequentialAnchorData;
     AnchorVertex *prev = before;
-    AnchorData *data;
-    for (i = 0; i <= vertices.count(); ++i) {
-        AnchorVertex *next = (i < vertices.count()) ? vertices.at(i) : after;
-        data = graph->takeEdge(prev, next);
-        sequence->m_edges.append(data);
+
+    for (int i = 0; i <= orderedVertices.count(); ++i) {
+        AnchorVertex *next = (i < orderedVertices.count()) ? orderedVertices.at(i) : after;
+        AnchorData *ad = graph->takeEdge(prev, next);
+        Q_ASSERT(ad);
+        sequence->m_edges.append(ad);
         prev = next;
     }
-    sequence->setVertices(vertices);
+
+    sequence->setVertices(orderedVertices);
     sequence->from = before;
     sequence->to = after;
 
     sequence->refreshSizeHints_helper(0, false);
 
-    // data here is the last edge in the sequence
-    // ### this seems to be here for supporting reverse order sequences,
-    // but doesnt seem to be used right now
-    if (data->from != vertices.last())
-        qSwap(sequence->from, sequence->to);
-
     // Note that since layout 'edges' can't be simplified away from
     // the graph, it's safe to assume that if there's a layout
     // 'edge', it'll be in the boundaries of the sequence.
@@ -578,15 +617,6 @@ static bool simplifySequentialChunk(Graph<AnchorVertex, AnchorData> *graph,
    2. Go to (1)
    3. Done
 
-
-   * Gathering sequential anchors *
-   The algorithm walks the graph in depth-first order, and only collects vertices that has two
-   edges connected to it. If the vertex does not have two edges or if it is a layout edge,
-   it will take all the previously collected vertices and try to create a simplified sequential
-   anchor representing all the previously collected vertices.
-   Once the simplified anchor is inserted, the collected list is cleared in order to find the next
-   sequence to simplify.
-   Note that there are some catches to this that are not covered by the above explanation.
 */
 void QGraphicsAnchorLayoutPrivate::simplifyGraph(Orientation orientation)
 {
@@ -603,9 +633,7 @@ void QGraphicsAnchorLayoutPrivate::simplifyGraph(Orientation orientation)
            orientation == Horizontal ? "Horizontal" : "Vertical");
 #endif
 
-    AnchorVertex *rootVertex = graph[orientation].rootVertex();
-
-    if (!rootVertex)
+    if (!graph[orientation].rootVertex())
         return;
 
     bool dirty;
@@ -614,164 +642,171 @@ void QGraphicsAnchorLayoutPrivate::simplifyGraph(Orientation orientation)
     } while (dirty);
 }
 
+/*!
+    \internal
+
+    One iteration of the simplification algorithm. Returns true if another iteration is needed.
+
+    The algorithm walks the graph in depth-first order, and only collects vertices that has two
+    edges connected to it.  If the vertex does not have two edges or if it is a layout edge, it
+    will take all the previously collected vertices and try to create a simplified sequential
+    anchor representing all the previously collected vertices.  Once the simplified anchor is
+    inserted, the collected list is cleared in order to find the next sequence to simplify.
+
+    Note that there are some catches to this that are not covered by the above explanation, see
+    the function comments for more details.
+*/
 bool QGraphicsAnchorLayoutPrivate::simplifyGraphIteration(QGraphicsAnchorLayoutPrivate::Orientation orientation)
 {
     Q_Q(QGraphicsAnchorLayout);
     Graph<AnchorVertex, AnchorData> &g = graph[orientation];
-    AnchorVertex *v = g.rootVertex();
 
     QSet<AnchorVertex *> visited;
-    QStack<AnchorVertex *> stack;
-    stack.push(v);
+    QStack<QPair<AnchorVertex *, AnchorVertex *> > stack;
+    stack.push(qMakePair(static_cast<AnchorVertex *>(0), g.rootVertex()));
     QVector<AnchorVertex*> candidates;
+    bool candidatesForward;
 
     const Qt::AnchorPoint centerEdge = pickEdge(Qt::AnchorHorizontalCenter, orientation);
-    const Qt::AnchorPoint layoutEdge = oppositeEdge(v->m_edge);
 
-    bool dirty = false;
-
-    // walk depth-first.
+    // Walk depth-first, in the stack we store start of the candidate sequence (beforeSequence)
+    // and the vertex to be visited.
     while (!stack.isEmpty()) {
-        v = stack.pop();
-        QList<AnchorVertex *> vertices = g.adjacentVertices(v);
-        const int count = vertices.count();
-        bool endOfSequence = (v->m_item == q && v->m_edge == layoutEdge) || count != 2;
-        if (count == 2 && v->m_item != q) {
-            candidates.append(v);
-            if (visited.contains(vertices.first()) && visited.contains(vertices.last())) {
-                // in case of a cycle
-                endOfSequence = true;
+        QPair<AnchorVertex *, AnchorVertex *> pair = stack.pop();
+        AnchorVertex *beforeSequence = pair.first;
+        AnchorVertex *v = pair.second;
+
+        // The basic idea is to determine whether we found an end of sequence,
+        // if that's the case, we stop adding vertices to the candidate list
+        // and do a simplification step.
+        //
+        // A vertex can trigger an end of sequence if
+        // (a) it is a layout vertex, we don't simplify away the layout vertices;
+        // (b) it does not have exactly 2 adjacents;
+        // (c) it will change the direction of the sequence;
+        // (d) its next adjacent is already visited (a cycle in the graph).
+
+        const QList<AnchorVertex *> &adjacents = g.adjacentVertices(v);
+        const bool isLayoutVertex = v->m_item == q;
+        AnchorVertex *afterSequence = v;
+        bool endOfSequence = false;
+
+        //
+        // Identify the end cases.
+        //
+
+        // Identifies cases (a) and (b)
+        endOfSequence = isLayoutVertex || adjacents.count() != 2;
+
+        if (!endOfSequence) {
+            // If this is the first vertice, determine what is the direction to use for this
+            // sequence.
+            if (candidates.isEmpty()) {
+                const AnchorData *data = g.edgeData(beforeSequence, v);
+                Q_ASSERT(data);
+                candidatesForward = (beforeSequence == data->from);
             }
-        }
-        if (endOfSequence && candidates.count() >= 1) {
-            int i;
-            AnchorVertex *afterSequence= 0;
-            AnchorVertex *beforeSequence = 0;
-            // find the items before and after the valid sequence
-            if (candidates.count() == 1) {
-                QList<AnchorVertex *> beforeAndAfterVertices = g.adjacentVertices(candidates.at(0));
-                Q_ASSERT(beforeAndAfterVertices.count() == 2);
-                // Since we only have one vertex, we can pick
-                // any of the two vertices to become before/after.
-                afterSequence = beforeAndAfterVertices.last();
-                beforeSequence = beforeAndAfterVertices.first();
-            } else {
-                QList<AnchorVertex *> adjacentOfSecondLastVertex = g.adjacentVertices(candidates.last());
-                Q_ASSERT(adjacentOfSecondLastVertex.count() == 2);
-                if (adjacentOfSecondLastVertex.first() == candidates.at(candidates.count() - 2))
-                    afterSequence = adjacentOfSecondLastVertex.last();
-                else
-                    afterSequence = adjacentOfSecondLastVertex.first();
 
-                QList<AnchorVertex *> adjacentOfSecondVertex = g.adjacentVertices(candidates.first());
-                Q_ASSERT(adjacentOfSecondVertex.count() == 2);
-                if (adjacentOfSecondVertex.first() == candidates.at(1))
-                    beforeSequence = adjacentOfSecondVertex.last();
-                else
-                    beforeSequence = adjacentOfSecondVertex.first();
+            // This is a tricky part. We peek at the next vertex to find out
+            //
+            // - whether the edge from this vertex to the next vertex has the same direction;
+            // - whether we already visited the next vertex.
+            //
+            // Those are needed to identify (c) and (d). Note that unlike (a) and (b), we preempt
+            // the end of sequence by looking into the next vertex.
+
+            // Peek at the next vertex
+            AnchorVertex *after;
+            if (candidates.isEmpty())
+                after = (beforeSequence == adjacents.last() ? adjacents.first() : adjacents.last());
+            else
+                after = (candidates.last() == adjacents.last() ? adjacents.first() : adjacents.last());
+
+            // ### At this point we assumed that candidates will not contain 'after', this may not hold
+            // when simplifying FLOATing anchors.
+            Q_ASSERT(!candidates.contains(after));
+
+            const AnchorData *data = g.edgeData(v, after);
+            Q_ASSERT(data);
+            const bool willChangeDirection = (candidatesForward != (v == data->from));
+            const bool cycleFound = visited.contains(after);
+
+            // Now cases (c) and (d)...
+            endOfSequence = willChangeDirection || cycleFound;
+
+            if (endOfSequence) {
+                if (!willChangeDirection) {
+                    // If the direction will not change, we can add the current vertex to the
+                    // candidates list and we know that 'after' can be used as afterSequence.
+                    candidates.append(v);
+                    afterSequence = after;
+                }
+            } else {
+                // If it's not an end of sequence, then the vertex didn't trigger neither of the
+                // previously four cases, so it can be added to the candidates list.
+                candidates.append(v);
             }
-            // The complete path of the sequence to simplify is: beforeSequence, <candidates>, afterSequence
-            // where beforeSequence and afterSequence are the endpoints where the anchor is inserted
-            // between.
-#if defined(QT_DEBUG) && 0
-            // ### DEBUG
-            QString strCandidates;
-            for (i = 0; i < candidates.count(); ++i)
-                strCandidates += QString::fromAscii("%1 - ").arg(candidates.at(i)->toString());
-            QString strPath = QString::fromAscii("%1 - %2%3").arg(beforeSequence->toString(), strCandidates, afterSequence->toString());
-            qDebug("candidate list for sequential simplification:\n[%s]", qPrintable(strPath));
-#endif
+        }
 
-            bool forward = true;
-            AnchorVertex *prev = beforeSequence;
-            int intervalFrom = 0;
+        //
+        // Add next non-visited vertices to the stack.
+        //
+        for (int i = 0; i < adjacents.count(); ++i) {
+            AnchorVertex *next = adjacents.at(i);
+            if (visited.contains(next))
+                continue;
 
-            // Check for directionality (from). We don't want to destroy that information,
-            // thus we only combine anchors with the same direction.
+            // If current vertex is an end of sequence, and it'll reset the candidates list. So
+            // the next vertices will build candidates lists with the current vertex as 'before'
+            // vertex. If it's not an end of sequence, we keep the original 'before' vertex,
+            // since we are keeping the candidates list.
+            if (endOfSequence)
+                stack.push(qMakePair(v, next));
+            else
+                stack.push(qMakePair(beforeSequence, next));
+        }
 
-            // "i" is the index *including* the beforeSequence and afterSequence vertices.
-            for (i = 1; i <= candidates.count() + 1; ++i) {
-                bool atVertexAfter = i > candidates.count();
-                AnchorVertex *v1 = atVertexAfter ? afterSequence : candidates.at(i - 1);
-                AnchorData *data = g.edgeData(prev, v1);
-                Q_ASSERT(data);
-                if (i == 1) {
-                    forward = (prev == data->from ? true : false);
-                } else if (forward != (prev == data->from) || atVertexAfter) {
-                    int intervalTo = i;
-                    if (forward != (prev == data->from))
-                        --intervalTo;
-
-                    // intervalFrom and intervalTo should now be indices to the vertex before and
-                    // after the sequential anchor.
-                    if (intervalTo - intervalFrom >= 2) {
-                        // simplify in the range [intervalFrom, intervalTo]
-
-                        // Trim off internal center anchors (Left-Center/Center-Right) from the
-                        // start and the end of the sequence. We never want to simplify internal
-                        // center anchors where there is an external anchor connected to the center.
-                        AnchorVertex *intervalVertexFrom = intervalFrom == 0 ? beforeSequence : candidates.at(intervalFrom - 1);
-                        int effectiveIntervalFrom = intervalFrom;
-                        if (intervalVertexFrom->m_edge == centerEdge
-                            && intervalVertexFrom->m_item == candidates.at(effectiveIntervalFrom)->m_item) {
-                            ++effectiveIntervalFrom;
-                            intervalVertexFrom = candidates.at(effectiveIntervalFrom - 1);
-                        }
-                        AnchorVertex *intervalVertexTo = intervalTo <= candidates.count() ? candidates.at(intervalTo - 1) : afterSequence;
-                        int effectiveIntervalTo = intervalTo;
-                        if (intervalVertexTo->m_edge == centerEdge
-                            && intervalVertexTo->m_item == candidates.at(effectiveIntervalTo - 2)->m_item) {
-                            --effectiveIntervalTo;
-                            intervalVertexTo = candidates.at(effectiveIntervalTo - 1);
-                        }
-                        if (effectiveIntervalTo - effectiveIntervalFrom >= 2) {
-                            QVector<AnchorVertex*> subCandidates;
-                            if (forward) {
-                               subCandidates = candidates.mid(effectiveIntervalFrom, effectiveIntervalTo - effectiveIntervalFrom - 1);
-                            } else {
-                                // reverse the order of the candidates.
-                                qSwap(intervalVertexFrom, intervalVertexTo);
-                                do {
-                                    ++effectiveIntervalFrom;
-                                    subCandidates.prepend(candidates.at(effectiveIntervalFrom - 1));
-                                } while (effectiveIntervalFrom < effectiveIntervalTo - 1);
-                            }
-                            if (simplifySequentialChunk(&g, intervalVertexFrom, subCandidates, intervalVertexTo)) {
-                                dirty = true;
-                                break;
-                            }
-                            // finished simplification of chunk with same direction
-                        }
-                    }
-                    if (forward == (prev == data->from))
-                        --intervalTo;
-                    intervalFrom = intervalTo;
-
-                    forward = !forward;
-                }
-                prev = v1;
-            }
+        visited.insert(v);
 
-            if (dirty)
-                break;
-        }
+        if (!endOfSequence || candidates.isEmpty())
+            continue;
 
-        if (endOfSequence)
-            candidates.clear();
+        //
+        // Create a sequence for (beforeSequence, candidates, afterSequence).
+        //
 
-        for (int i = 0; i < count; ++i) {
-            AnchorVertex *next = vertices.at(i);
-            if (next->m_item == q && next->m_edge == centerEdge)
+        // One restriction we have is to not simplify half of an anchor and let the other half
+        // unsimplified. So we remove center edges before and after the sequence.
+        if (beforeSequence->m_edge == centerEdge && beforeSequence->m_item == candidates.first()->m_item) {
+            beforeSequence = candidates.first();
+            candidates.remove(0);
+
+            // If there's not candidates to be simplified, leave.
+            if (candidates.isEmpty())
                 continue;
-            if (visited.contains(next))
+        }
+
+        if (afterSequence->m_edge == centerEdge && afterSequence->m_item == candidates.last()->m_item) {
+            afterSequence = candidates.last();
+            candidates.remove(candidates.count() - 1);
+
+            if (candidates.isEmpty())
                 continue;
-            stack.push(next);
         }
 
-        visited.insert(v);
+        // This function will remove the candidates from the graph and create one edge between
+        // beforeSequence and afterSequence. This function returns true if the sequential
+        // simplification also caused a parallel simplification to be created. In this case we end
+        // the iteration and start again (since all the visited state we have may be outdated).
+        if (simplifySequentialChunk(&g, beforeSequence, candidates, afterSequence))
+            return true;
+
+        // If there was no parallel simplification, we'll keep walking the graph. So we clear the
+        // candidates list to start again.
+        candidates.clear();
     }
 
-    return dirty;
+    return false;
 }
 
 static void restoreSimplifiedAnchor(Graph<AnchorVertex, AnchorData> &g,
@@ -1173,18 +1208,18 @@ QGraphicsAnchor *QGraphicsAnchorLayoutPrivate::addAnchor(QGraphicsLayoutItem *fi
             || secondItem == q
             || pickEdge(firstEdge, Horizontal) == Qt::AnchorHorizontalCenter
             || oppositeEdge(firstEdge) != secondEdge) {
-            data->setFixedSize(0);
+            data->setPreferredSize(0);
         } else {
             data->unsetSize();
         }
         addAnchor_helper(firstItem, firstEdge, secondItem, secondEdge, data);
 
     } else if (*spacing >= 0) {
-        data->setFixedSize(*spacing);
+        data->setPreferredSize(*spacing);
         addAnchor_helper(firstItem, firstEdge, secondItem, secondEdge, data);
 
     } else {
-        data->setFixedSize(-*spacing);
+        data->setPreferredSize(-*spacing);
         addAnchor_helper(secondItem, secondEdge, firstItem, firstEdge, data);
     }
 
@@ -1371,9 +1406,9 @@ void QGraphicsAnchorLayoutPrivate::setAnchorSize(AnchorData *data, const qreal *
         // positive by definition.
         // "negative spacing" is handled by inverting the standard item order.
         if (*anchorSize >= 0) {
-            data->setFixedSize(*anchorSize);
+            data->setPreferredSize(*anchorSize);
         } else {
-            data->setFixedSize(-*anchorSize);
+            data->setPreferredSize(-*anchorSize);
             qSwap(data->from, data->to);
         }
     } else {
@@ -1550,6 +1585,13 @@ qreal QGraphicsAnchorLayoutPrivate::effectiveSpacing(Orientation orientation) co
             }
         }
     }
+
+    // ### Currently we do not support negative anchors inside the graph.
+    // To avoid those being created by a negative style spacing, we must
+    // make this test.
+    if (s < 0)
+        s = 0;
+
     return s;
 }
 
@@ -1565,13 +1607,24 @@ void QGraphicsAnchorLayoutPrivate::calculateGraphs()
     if (!calculateGraphCacheDirty)
         return;
 
+#if defined(QT_DEBUG) && 0
+    static int count = 0;
+    count++;
+    dumpGraph(QString::fromAscii("%1-before").arg(count));
+#endif
+
     calculateGraphs(Horizontal);
     calculateGraphs(Vertical);
 
+#if defined(QT_DEBUG) && 0
+    dumpGraph(QString::fromAscii("%1-after").arg(count));
+#endif
+
     calculateGraphCacheDirty = 0;
 }
 
-// ### remove me:
+// ### Maybe getGraphParts could return the variables when traversing, at least
+// for trunk...
 QList<AnchorData *> getVariables(QList<QSimplexConstraint *> constraints)
 {
     QSet<AnchorData *> variableSet;
@@ -1635,65 +1688,92 @@ void QGraphicsAnchorLayoutPrivate::calculateGraphs(
     //  2) The floating or semi-floating anchors (items) that are those which
     //     are connected to only one (or none) of the layout sides, thus are not
     //     influenced by the layout size.
-    QList<QList<QSimplexConstraint *> > parts;
-    parts = getGraphParts(orientation);
+    QList<QList<QSimplexConstraint *> > parts = getGraphParts(orientation);
 
     // Now run the simplex solver to calculate Minimum, Preferred and Maximum sizes
     // of the "trunk" set of constraints and variables.
     // ### does trunk always exist? empty = trunk is the layout left->center->right
     QList<QSimplexConstraint *> trunkConstraints = parts[0];
-    QList<QSimplexConstraint *> sizeHintConstraints;
-    sizeHintConstraints = constraintsFromSizeHints(getVariables(trunkConstraints));
-    trunkConstraints += sizeHintConstraints;
+    QList<AnchorData *> trunkVariables = getVariables(trunkConstraints);
 
     // For minimum and maximum, use the path between the two layout sides as the
     // objective function.
-
-    // Retrieve that path
     AnchorVertex *v = internalVertex(q, pickEdge(Qt::AnchorRight, orientation));
     GraphPath trunkPath = graphPaths[orientation].value(v);
 
+    bool feasible = calculateTrunk(orientation, trunkPath, trunkConstraints, trunkVariables);
+
+    // For the other parts that not the trunk, solve only for the preferred size
+    // that is the size they will remain at, since they are not stretched by the
+    // layout.
+
+    // Skipping the first (trunk)
+    for (int i = 1; i < parts.count(); ++i) {
+        if (!feasible)
+            break;
+
+        QList<QSimplexConstraint *> partConstraints = parts[i];
+        QList<AnchorData *> partVariables = getVariables(partConstraints);
+        Q_ASSERT(!partVariables.isEmpty());
+        feasible &= calculateNonTrunk(partConstraints, partVariables);
+    }
+
+    // Propagate the new sizes down the simplified graph, ie. tell the
+    // group anchors to set their children anchors sizes.
+    updateAnchorSizes(orientation);
+
+    graphHasConflicts[orientation] = !feasible;
+
+    // Clean up our data structures. They are not needed anymore since
+    // distribution uses just interpolation.
+    qDeleteAll(constraints[orientation]);
+    constraints[orientation].clear();
+    graphPaths[orientation].clear(); // ###
+}
+
+/*!
+    \internal
+
+    Calculate the sizes for all anchors which are part of the trunk. This works
+    on top of a (possibly) simplified graph.
+*/
+bool QGraphicsAnchorLayoutPrivate::calculateTrunk(Orientation orientation, const GraphPath &path,
+                                                  const QList<QSimplexConstraint *> &constraints,
+                                                  const QList<AnchorData *> &variables)
+{
     bool feasible = true;
-    if (!trunkConstraints.isEmpty()) {
+    bool needsSimplex = !constraints.isEmpty();
+
 #if 0
-        qDebug("Simplex used for trunk of %s",
-               orientation == Horizontal ? "Horizontal" : "Vertical");
+    qDebug("Simplex %s for trunk of %s", needsSimplex ? "used" : "NOT used",
+           orientation == Horizontal ? "Horizontal" : "Vertical");
 #endif
 
-        // Solve min and max size hints for trunk
-        qreal min, max;
-        feasible = solveMinMax(trunkConstraints, trunkPath, &min, &max);
+    if (needsSimplex) {
 
-        if (feasible) {
-            // Solve for preferred. The objective function is calculated from the constraints
-            // and variables internally.
-            solvePreferred(trunkConstraints);
+        QList<QSimplexConstraint *> sizeHintConstraints = constraintsFromSizeHints(variables);
+        QList<QSimplexConstraint *> allConstraints = constraints + sizeHintConstraints;
 
-            // remove sizeHintConstraints from trunkConstraints
-            trunkConstraints = parts[0];
-
-            // Solve for expanding. The objective function and the constraints from items
-            // are calculated internally.
-            solveExpanding(trunkConstraints);
-
-            // Propagate the new sizes down the simplified graph, ie. tell the
-            // group anchors to set their children anchors sizes.
+        // Solve min and max size hints
+        qreal min, max;
+        feasible = solveMinMax(allConstraints, path, &min, &max);
 
-            // ### we calculated variables already a few times, can't we reuse that?
-            QList<AnchorData *> trunkVariables = getVariables(trunkConstraints);
+        if (feasible) {
+            solvePreferred(allConstraints, variables);
 
-            for (int i = 0; i < trunkVariables.count(); ++i)
-                trunkVariables.at(i)->updateChildrenSizes();
+            // Note that we don't include the sizeHintConstraints, since they
+            // have a different logic for solveExpanding().
+            solveExpanding(constraints, variables);
 
             // Calculate and set the preferred and expanding sizes for the layout,
             // from the edge sizes that were calculated above.
             qreal pref(0.0);
             qreal expanding(0.0);
-            foreach (const AnchorData *ad, trunkPath.positives) {
+            foreach (const AnchorData *ad, path.positives) {
                 pref += ad->sizeAtPreferred;
                 expanding += ad->sizeAtExpanding;
             }
-            foreach (const AnchorData *ad, trunkPath.negatives) {
+            foreach (const AnchorData *ad, path.negatives) {
                 pref -= ad->sizeAtPreferred;
                 expanding -= ad->sizeAtExpanding;
             }
@@ -1703,76 +1783,57 @@ void QGraphicsAnchorLayoutPrivate::calculateGraphs(
             sizeHints[orientation][Qt::MaximumSize] = max;
             sizeAtExpanding[orientation] = expanding;
         }
-    } else {
-#if 0
-        qDebug("Simplex NOT used for trunk of %s",
-               orientation == Horizontal ? "Horizontal" : "Vertical");
-#endif
 
+        qDeleteAll(sizeHintConstraints);
+
+    } else {
         // No Simplex is necessary because the path was simplified all the way to a single
         // anchor.
-        Q_ASSERT(trunkPath.positives.count() == 1);
-        Q_ASSERT(trunkPath.negatives.count() == 0);
+        Q_ASSERT(path.positives.count() == 1);
+        Q_ASSERT(path.negatives.count() == 0);
 
-        AnchorData *ad = trunkPath.positives.toList()[0];
+        AnchorData *ad = path.positives.toList()[0];
         ad->sizeAtMinimum = ad->minSize;
         ad->sizeAtPreferred = ad->prefSize;
         ad->sizeAtExpanding = ad->expSize;
         ad->sizeAtMaximum = ad->maxSize;
 
-        // Propagate
-        ad->updateChildrenSizes();
-
         sizeHints[orientation][Qt::MinimumSize] = ad->sizeAtMinimum;
         sizeHints[orientation][Qt::PreferredSize] = ad->sizeAtPreferred;
         sizeHints[orientation][Qt::MaximumSize] = ad->sizeAtMaximum;
         sizeAtExpanding[orientation] = ad->sizeAtExpanding;
     }
 
-    // Delete the constraints, we won't use them anymore.
-    qDeleteAll(sizeHintConstraints);
-    sizeHintConstraints.clear();
+#if defined(QT_DEBUG) || defined(Q_AUTOTEST_EXPORT)
+    lastCalculationUsedSimplex[orientation] = needsSimplex;
+#endif
 
-    // For the other parts that not the trunk, solve only for the preferred size
-    // that is the size they will remain at, since they are not stretched by the
-    // layout.
+    return feasible;
+}
 
-    // Solve the other only for preferred, skip trunk
-    if (feasible) {
-        for (int i = 1; i < parts.count(); ++i) {
-            QList<QSimplexConstraint *> partConstraints = parts[i];
-            QList<AnchorData *> partVariables = getVariables(partConstraints);
-            Q_ASSERT(!partVariables.isEmpty());
-
-            sizeHintConstraints = constraintsFromSizeHints(partVariables);
-            partConstraints += sizeHintConstraints;
-            feasible &= solvePreferred(partConstraints);
-            if (!feasible)
-                break;
-
-            // Propagate size at preferred to other sizes. Semi-floats
-            // always will be in their sizeAtPreferred.
-            for (int j = 0; j < partVariables.count(); ++j) {
-                AnchorData *ad = partVariables[j];
-                Q_ASSERT(ad);
-                ad->sizeAtMinimum = ad->sizeAtPreferred;
-                ad->sizeAtExpanding = ad->sizeAtPreferred;
-                ad->sizeAtMaximum = ad->sizeAtPreferred;
-                ad->updateChildrenSizes();
-            }
+/*!
+    \internal
+*/
+bool QGraphicsAnchorLayoutPrivate::calculateNonTrunk(const QList<QSimplexConstraint *> &constraints,
+                                                     const QList<AnchorData *> &variables)
+{
+    QList<QSimplexConstraint *> sizeHintConstraints = constraintsFromSizeHints(variables);
+    bool feasible = solvePreferred(constraints + sizeHintConstraints, variables);
 
-            // Delete the constraints, we won't use them anymore.
-            qDeleteAll(sizeHintConstraints);
-            sizeHintConstraints.clear();
+    if (feasible) {
+        // Propagate size at preferred to other sizes. Semi-floats always will be
+        // in their sizeAtPreferred.
+        for (int j = 0; j < variables.count(); ++j) {
+            AnchorData *ad = variables[j];
+            Q_ASSERT(ad);
+            ad->sizeAtMinimum = ad->sizeAtPreferred;
+            ad->sizeAtExpanding = ad->sizeAtPreferred;
+            ad->sizeAtMaximum = ad->sizeAtPreferred;
         }
     }
-    graphHasConflicts[orientation] = !feasible;
 
-    // Clean up our data structures. They are not needed anymore since
-    // distribution uses just interpolation.
-    qDeleteAll(constraints[orientation]);
-    constraints[orientation].clear();
-    graphPaths[orientation].clear(); // ###
+    qDeleteAll(sizeHintConstraints);
+    return feasible;
 }
 
 /*!
@@ -1876,6 +1937,20 @@ void QGraphicsAnchorLayoutPrivate::constraintsFromPaths(Orientation orientation)
 
 /*!
   \internal
+*/
+void QGraphicsAnchorLayoutPrivate::updateAnchorSizes(Orientation orientation)
+{
+    Graph<AnchorVertex, AnchorData> &g = graph[orientation];
+    const QList<QPair<AnchorVertex *, AnchorVertex *> > &vertices = g.connections();
+
+    for (int i = 0; i < vertices.count(); ++i) {
+        AnchorData *ad = g.edgeData(vertices.at(i).first, vertices.at(i).second);
+        ad->updateChildrenSizes();
+    }
+}
+
+/*!
+  \internal
 
   Create LP constraints for each anchor based on its minimum and maximum
   sizes, as specified in its size hints
@@ -2160,39 +2235,26 @@ void QGraphicsAnchorLayoutPrivate::calculateVertexPositions(
   \internal
 
   Calculate interpolation parameters based on current Layout Size.
-  Must once before calling "interpolateEdgeSize()" for each edge.
+  Must be called once before calling "interpolateEdgeSize()" for
+  the edges.
 */
 void QGraphicsAnchorLayoutPrivate::setupEdgesInterpolation(
     Orientation orientation)
 {
     Q_Q(QGraphicsAnchorLayout);
-    qreal lower, upper, current;
 
-    if (orientation == Horizontal) {
-        current = q->contentsRect().width();
-    } else {
-        current = q->contentsRect().height();
-    }
+    qreal current;
+    current = (orientation == Horizontal) ? q->contentsRect().width() : q->contentsRect().height();
 
-    if (current < sizeHints[orientation][Qt::PreferredSize]) {
-        interpolationInterval[orientation] = MinToPreferred;
-        lower = sizeHints[orientation][Qt::MinimumSize];
-        upper = sizeHints[orientation][Qt::PreferredSize];
-    } else if (current < sizeAtExpanding[orientation]) {
-        interpolationInterval[orientation] = PreferredToExpanding;
-        lower = sizeHints[orientation][Qt::PreferredSize];
-        upper = sizeAtExpanding[orientation];
-    } else {
-        interpolationInterval[orientation] = ExpandingToMax;
-        lower = sizeAtExpanding[orientation];
-        upper = sizeHints[orientation][Qt::MaximumSize];
-    }
+    QPair<Interval, qreal> result;
+    result = getFactor(current,
+                       sizeHints[orientation][Qt::MinimumSize],
+                       sizeHints[orientation][Qt::PreferredSize],
+                       sizeAtExpanding[orientation],
+                       sizeHints[orientation][Qt::MaximumSize]);
 
-    if (upper == lower) {
-        interpolationProgress[orientation] = 0;
-    } else {
-        interpolationProgress[orientation] = (current - lower) / (upper - lower);
-    }
+    interpolationInterval[orientation] = result.first;
+    interpolationProgress[orientation] = result.second;
 }
 
 /*!
@@ -2219,20 +2281,11 @@ void QGraphicsAnchorLayoutPrivate::interpolateEdge(AnchorVertex *base,
                                                    AnchorData *edge,
                                                    Orientation orientation)
 {
-    qreal lower, upper;
+    const QPair<Interval, qreal> factor(interpolationInterval[orientation],
+                                        interpolationProgress[orientation]);
 
-    if (interpolationInterval[orientation] == MinToPreferred) {
-        lower = edge->sizeAtMinimum;
-        upper = edge->sizeAtPreferred;
-    } else if (interpolationInterval[orientation] == PreferredToExpanding) {
-        lower = edge->sizeAtPreferred;
-        upper = edge->sizeAtExpanding;
-    } else {
-        lower = edge->sizeAtExpanding;
-        upper = edge->sizeAtMaximum;
-    }
-
-    qreal edgeDistance = (interpolationProgress[orientation] * (upper - lower)) + lower;
+    qreal edgeDistance = interpolate(factor, edge->sizeAtMinimum, edge->sizeAtPreferred,
+                                     edge->sizeAtExpanding, edge->sizeAtMaximum);
 
     Q_ASSERT(edge->from == base || edge->to == base);
 
@@ -2303,7 +2356,7 @@ void QGraphicsAnchorLayoutPrivate::interpolateSequentialEdges(
         interpolateEdge(prev, data->m_edges.last(), orientation);
 }
 
-bool QGraphicsAnchorLayoutPrivate::solveMinMax(QList<QSimplexConstraint *> constraints,
+bool QGraphicsAnchorLayoutPrivate::solveMinMax(const QList<QSimplexConstraint *> &constraints,
                                                GraphPath path, qreal *min, qreal *max)
 {
     QSimplex simplex;
@@ -2344,9 +2397,9 @@ bool QGraphicsAnchorLayoutPrivate::solveMinMax(QList<QSimplexConstraint *> const
     return feasible;
 }
 
-bool QGraphicsAnchorLayoutPrivate::solvePreferred(QList<QSimplexConstraint *> constraints)
+bool QGraphicsAnchorLayoutPrivate::solvePreferred(const QList<QSimplexConstraint *> &constraints,
+                                                  const QList<AnchorData *> &variables)
 {
-    QList<AnchorData *> variables = getVariables(constraints);
     QList<QSimplexConstraint *> preferredConstraints;
     QList<QSimplexVariable *> preferredVariables;
     QSimplexConstraint objective;
@@ -2369,7 +2422,7 @@ bool QGraphicsAnchorLayoutPrivate::solvePreferred(QList<QSimplexConstraint *> co
     //      A + A_shrinker - A_grower = A_pref
     //
     for (int i = 0; i < variables.size(); ++i) {
-        AnchorData *ad = static_cast<AnchorData *>(variables[i]);
+        AnchorData *ad = variables[i];
         if (ad->skipInPreferred)
             continue;
 
@@ -2400,7 +2453,7 @@ bool QGraphicsAnchorLayoutPrivate::solvePreferred(QList<QSimplexConstraint *> co
 
         // Save sizeAtPreferred results
         for (int i = 0; i < variables.size(); ++i) {
-            AnchorData *ad = static_cast<AnchorData *>(variables[i]);
+            AnchorData *ad = variables[i];
             ad->sizeAtPreferred = ad->result;
         }
 
@@ -2461,9 +2514,9 @@ bool QGraphicsAnchorLayoutPrivate::solvePreferred(QList<QSimplexConstraint *> co
           expanding ones will shrink. Only after non-expanding anchors have
           shrinked all the way, the expanding anchors will start to shrink too.
 */
-void QGraphicsAnchorLayoutPrivate::solveExpanding(QList<QSimplexConstraint *> constraints)
+void QGraphicsAnchorLayoutPrivate::solveExpanding(const QList<QSimplexConstraint *> &constraints,
+                                                  const QList<AnchorData *> &variables)
 {
-    QList<AnchorData *> variables = getVariables(constraints);
     QList<QSimplexConstraint *> itemConstraints;
     QSimplexConstraint *objective = new QSimplexConstraint;
     bool hasExpanding = false;
@@ -2566,9 +2619,9 @@ bool QGraphicsAnchorLayoutPrivate::hasConflicts() const
 }
 
 #ifdef QT_DEBUG
-void QGraphicsAnchorLayoutPrivate::dumpGraph()
+void QGraphicsAnchorLayoutPrivate::dumpGraph(const QString &name)
 {
-    QFile file(QString::fromAscii("anchorlayout.dot"));
+    QFile file(QString::fromAscii("anchorlayout.%1.dot").arg(name));
     if (!file.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Truncate))
         qWarning("Could not write to %s", file.fileName().toLocal8Bit().constData());
 
diff --git a/src/gui/graphicsview/qgraphicsanchorlayout_p.h b/src/gui/graphicsview/qgraphicsanchorlayout_p.h
index 9ac0e19..d45c004 100644
--- a/src/gui/graphicsview/qgraphicsanchorlayout_p.h
+++ b/src/gui/graphicsview/qgraphicsanchorlayout_p.h
@@ -169,16 +169,9 @@ struct AnchorData : public QSimplexVariable {
     QString name;
 #endif
 
-    inline void setFixedSize(qreal size)
+    inline void setPreferredSize(qreal size)
     {
-        minSize = size;
         prefSize = size;
-        expSize = size;
-        maxSize = size;
-        sizeAtMinimum = size;
-        sizeAtPreferred = size;
-        sizeAtExpanding = size;
-        sizeAtMaximum = size;
         hasSize = true;
     }
 
@@ -316,8 +309,11 @@ public:
     void unsetSpacing();
     qreal spacing() const;
 
+    void setSizePolicy(QSizePolicy::Policy policy);
+
     QGraphicsAnchorLayoutPrivate *layoutPrivate;
     AnchorData *data;
+    QSizePolicy::Policy sizePolicy;
 };
 
 
@@ -438,9 +434,17 @@ public:
 
     void calculateGraphs();
     void calculateGraphs(Orientation orientation);
+
+    bool calculateTrunk(Orientation orientation, const GraphPath &trunkPath,
+                        const QList<QSimplexConstraint *> &constraints,
+                        const QList<AnchorData *> &variables);
+    bool calculateNonTrunk(const QList<QSimplexConstraint *> &constraints,
+                           const QList<AnchorData *> &variables);
+
     void setAnchorSizeHintsFromItems(Orientation orientation);
     void findPaths(Orientation orientation);
     void constraintsFromPaths(Orientation orientation);
+    void updateAnchorSizes(Orientation orientation);
     QList<QSimplexConstraint *> constraintsFromSizeHints(const QList<AnchorData *> &anchors);
     QList<QList<QSimplexConstraint *> > getGraphParts(Orientation orientation);
     void identifyFloatItems(const QSet<AnchorData *> &visited, Orientation orientation);
@@ -471,14 +475,16 @@ public:
                                   Orientation orientation);
 
     // Linear Programming solver methods
-    bool solveMinMax(QList<QSimplexConstraint *> constraints,
+    bool solveMinMax(const QList<QSimplexConstraint *> &constraints,
                      GraphPath path, qreal *min, qreal *max);
-    bool solvePreferred(QList<QSimplexConstraint *> constraints);
-    void solveExpanding(QList<QSimplexConstraint *> constraints);
+    bool solvePreferred(const QList<QSimplexConstraint *> &constraints,
+                        const QList<AnchorData *> &variables);
+    void solveExpanding(const QList<QSimplexConstraint *> &constraints,
+                        const QList<AnchorData *> &variables);
     bool hasConflicts() const;
 
 #ifdef QT_DEBUG
-    void dumpGraph();
+    void dumpGraph(const QString &name = QString());
 #endif
 
 
@@ -513,7 +519,13 @@ public:
     bool graphHasConflicts[2];
     QSet<QGraphicsLayoutItem *> m_floatItems[2];
 
+#if defined(QT_DEBUG) || defined(Q_AUTOTEST_EXPORT)
+    bool lastCalculationUsedSimplex[2];
+#endif
+
     uint calculateGraphCacheDirty : 1;
+
+    friend class QGraphicsAnchorPrivate;
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/graphicsview/qgraphicsgridlayout.cpp b/src/gui/graphicsview/qgraphicsgridlayout.cpp
index d1d91db..9a8dba0 100644
--- a/src/gui/graphicsview/qgraphicsgridlayout.cpp
+++ b/src/gui/graphicsview/qgraphicsgridlayout.cpp
@@ -63,7 +63,7 @@
     You can access each item in the layout by calling count() and itemAt(). Calling
     removeAt() will remove an item from the layout, without
     destroying it.
-    
+
     \sa QGraphicsLinearLayout, QGraphicsWidget
 */
 
@@ -89,7 +89,7 @@ public:
     QLayoutStyleInfo styleInfo() const;
 
     QGridLayoutEngine engine;
-#ifdef QT_DEBUG    
+#ifdef QT_DEBUG
     void dump(int indent) const;
 #endif
 };
@@ -121,7 +121,7 @@ QGraphicsGridLayout::~QGraphicsGridLayout()
     for (int i = count() - 1; i >= 0; --i) {
         QGraphicsLayoutItem *item = itemAt(i);
         // The following lines can be removed, but this removes the item
-        // from the layout more efficiently than the implementation of 
+        // from the layout more efficiently than the implementation of
         // ~QGraphicsLayoutItem.
         removeAt(i);
         if (item) {
@@ -141,18 +141,22 @@ void QGraphicsGridLayout::addItem(QGraphicsLayoutItem *item, int row, int column
 {
     Q_D(QGraphicsGridLayout);
     if (row < 0 || column < 0) {
-	qWarning("QGraphicsGridLayout::addItem: invalid row/column: %d",
-		 row < 0 ? row : column);
-	return;
+        qWarning("QGraphicsGridLayout::addItem: invalid row/column: %d",
+                 row < 0 ? row : column);
+        return;
     }
     if (columnSpan < 1 || rowSpan < 1) {
-	qWarning("QGraphicsGridLayout::addItem: invalid row span/column span: %d",
-		 rowSpan < 1 ? rowSpan : columnSpan);
-	return;
+        qWarning("QGraphicsGridLayout::addItem: invalid row span/column span: %d",
+                 rowSpan < 1 ? rowSpan : columnSpan);
+        return;
     }
     if (!item) {
-	qWarning("QGraphicsGridLayout::addItem: cannot add null item");
-	return;
+        qWarning("QGraphicsGridLayout::addItem: cannot add null item");
+        return;
+    }
+    if (item == this) {
+        qWarning("QGraphicsGridLayout::addItem: cannot insert itself");
+        return;
     }
 
     d->addChildLayoutItem(item);
@@ -647,5 +651,5 @@ QSizePolicy::ControlTypes QGraphicsGridLayout::controlTypes(LayoutSide side) con
 #endif
 
 QT_END_NAMESPACE
-        
-#endif //QT_NO_GRAPHICSVIEW        
+
+#endif //QT_NO_GRAPHICSVIEW
diff --git a/src/gui/graphicsview/qgraphicslinearlayout.cpp b/src/gui/graphicsview/qgraphicslinearlayout.cpp
index 0aa68df..7ff7c9b 100644
--- a/src/gui/graphicsview/qgraphicslinearlayout.cpp
+++ b/src/gui/graphicsview/qgraphicslinearlayout.cpp
@@ -272,6 +272,10 @@ void QGraphicsLinearLayout::insertItem(int index, QGraphicsLayoutItem *item)
         qWarning("QGraphicsLinearLayout::insertItem: cannot insert null item");
         return;
     }
+    if (item == this) {
+        qWarning("QGraphicsLinearLayout::insertItem: cannot insert itself");
+        return;
+    }
     d->addChildLayoutItem(item);
 
     Q_ASSERT(item);
diff --git a/src/gui/image/qpixmap_s60.cpp b/src/gui/image/qpixmap_s60.cpp
index 9ae8d72..666d608 100644
--- a/src/gui/image/qpixmap_s60.cpp
+++ b/src/gui/image/qpixmap_s60.cpp
@@ -496,11 +496,12 @@ void QS60PixmapData::fromImage(const QImage &img, Qt::ImageConversionFlags flags
         mode = EColor16MU;
         break;
     case QImage::Format_ARGB32_Premultiplied:
-#if !defined(__SERIES60_31__) && !defined(__S60_32__)
-        mode = EColor16MAP;
-        break;
-#endif
-        destFormat = QImage::Format_ARGB32;
+        if (S60->supportsPremultipliedAlpha) {
+            mode = Q_SYMBIAN_ECOLOR16MAP;
+            break;
+        } else {
+            destFormat = QImage::Format_ARGB32;
+        }
         // Fall through intended
     case QImage::Format_ARGB32:
         mode = EColor16MA;
@@ -690,6 +691,10 @@ void QS60PixmapData::beginDataAccess()
     bytes = newBytes;
     TDisplayMode mode = cfbsBitmap->DisplayMode();
     QImage::Format format = qt_TDisplayMode2Format(mode);
+    //on S60 3.1, premultiplied alpha pixels are stored in a bitmap with 16MA type
+    if (format == QImage::Format_ARGB32)
+        format = QImage::Format_ARGB32_Premultiplied; // pixel data is actually in premultiplied format
+
     TSize size = cfbsBitmap->SizeInPixels();
 
     QVector<QRgb> savedColorTable;
@@ -794,8 +799,8 @@ void* QS60PixmapData::toNativeType(NativeType type)
         bool needsCopy = false;
 
         QSysInfo::SymbianVersion symbianVersion = QSysInfo::symbianVersion();
-        if (symbianVersion == QSysInfo::SV_9_2 || symbianVersion == QSysInfo::SV_9_3) {
-            // Convert argb32_premultiplied to argb32 since Symbian 9.2 and Symbian 9.3 do
+        if (!(S60->supportsPremultipliedAlpha)) {
+            // Convert argb32_premultiplied to argb32 since Symbian 9.2 does
             // not support premultipied format.
 
             if (image.format() == QImage::Format_ARGB32_Premultiplied) {
diff --git a/src/gui/image/qpixmapcache.cpp b/src/gui/image/qpixmapcache.cpp
index f12d397..b0b7d72 100644
--- a/src/gui/image/qpixmapcache.cpp
+++ b/src/gui/image/qpixmapcache.cpp
@@ -221,6 +221,7 @@ QPMCache::QPMCache()
 }
 QPMCache::~QPMCache()
 {
+    clear();
     free(keyArray);
 }
 
diff --git a/src/gui/inputmethod/qinputcontext.cpp b/src/gui/inputmethod/qinputcontext.cpp
index 8ee417f..ea6ed35 100644
--- a/src/gui/inputmethod/qinputcontext.cpp
+++ b/src/gui/inputmethod/qinputcontext.cpp
@@ -467,32 +467,32 @@ bool QInputContext::x11FilterEvent(QWidget * /*keywidget*/, XEvent * /*event*/)
 }
 #endif // Q_WS_X11
 
-#ifdef Q_WS_S60
+#ifdef Q_OS_SYMBIAN
 /*!
     \since 4.6
 
     This function may be overridden only if input method is depending
-    on Symbian and you need raw TWsEvent. Otherwise, this function must not.
+    on Symbian and you need raw Symbian events. Otherwise, this function must not.
 
-    This function is designed to filter raw key events on S60, but
+    This function is designed to filter raw key events on Symbian, but
     other input methods may use this to implement some special
     features.
 
     Return true if the \a event has been consumed. Otherwise, the
     unfiltered \a event will be translated into QEvent and forwarded
-    to filterEvent(). Filtering at both s60FilterEvent() and
+    to filterEvent(). Filtering at both symbianFilterEvent() and
     filterEvent() in single input method is allowed.
 
     \a keywidget is a client widget into which a text is inputted. \a
-    event is inputted TWsEvent.
+    event is inputted QSymbianEvent.
 
     \sa filterEvent()
 */
-bool QInputContext::s60FilterEvent(QWidget * /*keywidget*/, TWsEvent * /*event*/)
+bool QInputContext::symbianFilterEvent(QWidget * /*keywidget*/, const QSymbianEvent * /*event*/)
 {
     return false;
 }
-#endif // Q_WS_S60
+#endif // Q_OS_SYMBIAN
 
 QT_END_NAMESPACE
 
diff --git a/src/gui/inputmethod/qinputcontext.h b/src/gui/inputmethod/qinputcontext.h
index 73b05d8..14096e3 100644
--- a/src/gui/inputmethod/qinputcontext.h
+++ b/src/gui/inputmethod/qinputcontext.h
@@ -67,10 +67,6 @@
 
 QT_BEGIN_HEADER
 
-#ifdef Q_WS_S60
-class TWsEvent;
-#endif
-
 QT_BEGIN_NAMESPACE
 
 QT_MODULE(Gui)
@@ -79,6 +75,9 @@ class QWidget;
 class QFont;
 class QPopupMenu;
 class QInputContextPrivate;
+#ifdef Q_OS_SYMBIAN
+class QSymbianEvent;
+#endif
 
 class Q_GUI_EXPORT QInputContext : public QObject
 {
@@ -108,9 +107,9 @@ public:
 #if defined(Q_WS_X11)
     virtual bool x11FilterEvent( QWidget *keywidget, XEvent *event );
 #endif // Q_WS_X11
-#if defined(Q_WS_S60)
-    virtual bool s60FilterEvent( QWidget *keywidget, TWsEvent *event );
-#endif // Q_WS_S60
+#if defined(Q_OS_SYMBIAN)
+    virtual bool symbianFilterEvent( QWidget *keywidget, const QSymbianEvent *event );
+#endif // Q_OS_SYMBIAN
     virtual bool filterEvent( const QEvent *event );
 
     void sendEvent(const QInputMethodEvent &event);
diff --git a/src/gui/inputmethod/qmacinputcontext_mac.cpp b/src/gui/inputmethod/qmacinputcontext_mac.cpp
index 116d233..994edb9 100644
--- a/src/gui/inputmethod/qmacinputcontext_mac.cpp
+++ b/src/gui/inputmethod/qmacinputcontext_mac.cpp
@@ -217,7 +217,11 @@ QMacInputContext::globalEventProcessor(EventHandlerCallRef, EventRef event, void
     case kEventClassTextInput: {
         handled_event = false;
         QWidget *widget = QApplicationPrivate::focus_widget;
-        if(!widget || (context && widget->inputContext() != context)) {
+        bool canCompose = widget && (!context || widget->inputContext() == context)
+                && !(widget->inputMethodHints() & Qt::ImhDigitsOnly
+                || widget->inputMethodHints() & Qt::ImhFormattedNumbersOnly
+                || widget->inputMethodHints() & Qt::ImhHiddenText);
+        if(!canCompose) {
             handled_event = false;
         } else if(ekind == kEventTextInputOffsetToPos) {
             if(!widget->testAttribute(Qt::WA_InputMethodEnabled)) {
diff --git a/src/gui/itemviews/qlistview.cpp b/src/gui/itemviews/qlistview.cpp
index 9b0b00f..1d9b6e0 100644
--- a/src/gui/itemviews/qlistview.cpp
+++ b/src/gui/itemviews/qlistview.cpp
@@ -1105,13 +1105,13 @@ QModelIndex QListView::moveCursor(CursorAction cursorAction, Qt::KeyboardModifie
             ++row;
         if (row >= rowCount)
             return QModelIndex();
-        return d->model->index(row, 0, d->root);
+        return d->model->index(row, d->column, d->root);
     }
 
     const QRect initialRect = rectForIndex(current);
     QRect rect = initialRect;
     if (rect.isEmpty()) {
-        return d->model->index(0, 0, d->root);
+        return d->model->index(0, d->column, d->root);
     }
     if (d->gridSize().isValid()) rect.setSize(d->gridSize());
 
@@ -2490,7 +2490,7 @@ bool QIconModeViewBase::filterDropEvent(QDropEvent *e)
     for (int i = 0; i < indexes.count(); ++i) {
         QModelIndex index = indexes.at(i);
         QRect rect = dd->rectForIndex(index);
-        viewport()->update(mapToViewport(rect));
+        viewport()->update(dd->mapToViewport(rect, false));
         QPoint dest = rect.topLeft() + delta;
         if (qq->isRightToLeft())
             dest.setX(dd->flipX(dest.x()) - rect.width());
diff --git a/src/gui/itemviews/qtableview.cpp b/src/gui/itemviews/qtableview.cpp
index a610b73..2a937f1 100644
--- a/src/gui/itemviews/qtableview.cpp
+++ b/src/gui/itemviews/qtableview.cpp
@@ -1599,7 +1599,7 @@ QModelIndex QTableView::moveCursor(CursorAction cursorAction, Qt::KeyboardModifi
                 break;
             visualColumn = right + 1;
             if (visualRow == 0) {
-                wrapped == true;
+                wrapped = true;
                 visualRow = bottom;
             } else {
                 --visualRow;
diff --git a/src/gui/kernel/qaction.cpp b/src/gui/kernel/qaction.cpp
index 6a6e549..5f5650f 100644
--- a/src/gui/kernel/qaction.cpp
+++ b/src/gui/kernel/qaction.cpp
@@ -276,7 +276,7 @@ void QActionPrivate::setShortcutEnabled(bool enable, QShortcutMap &map)
     This enum describes how an action should be placed in the softkey bar. Currently this enum only
     has an effect on the Symbian platform.
 
-    \value NoSoftKey This action should be used as a softkey
+    \value NoSoftKey This action should not be used as a softkey
     \value PositiveSoftKey This action is used to describe a softkey with a positive or non-destructive
            role such as Ok, Select, or Options.
     \value NegativeSoftKey This action is used to describe a soft ey with a negative or destructive role
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index 6f6d706..f48c551 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -68,9 +68,6 @@
 #include "private/qstylesheetstyle_p.h"
 #include "private/qstyle_p.h"
 #include "qmessagebox.h"
-#include "qlineedit.h"
-#include "qlistview.h"
-#include "qtextedit.h"
 #include <QtGui/qgraphicsproxywidget.h>
 
 #include "qinputcontext.h"
@@ -2501,6 +2498,8 @@ void QApplication::setActiveWindow(QWidget* act)
 */
 QWidget *QApplicationPrivate::focusNextPrevChild_helper(QWidget *toplevel, bool next)
 {
+    uint focus_flag = qt_tab_all_widgets ? Qt::TabFocus : Qt::StrongFocus;
+
     QWidget *f = toplevel->focusWidget();
     if (!f)
         f = toplevel;
@@ -2508,22 +2507,11 @@ QWidget *QApplicationPrivate::focusNextPrevChild_helper(QWidget *toplevel, bool
     QWidget *w = f;
     QWidget *test = f->d_func()->focus_next;
     while (test && test != f) {
-        if ((test->focusPolicy() & Qt::TabFocus)
+        if ((test->focusPolicy() & focus_flag) == focus_flag
             && !(test->d_func()->extra && test->d_func()->extra->focus_proxy)
             && test->isVisibleTo(toplevel) && test->isEnabled()
             && !(w->windowType() == Qt::SubWindow && !w->isAncestorOf(test))
-            && (toplevel->windowType() != Qt::SubWindow || toplevel->isAncestorOf(test))
-            && (qt_tab_all_widgets
-#ifndef QT_NO_LINEEDIT
-                || qobject_cast<QLineEdit*>(test)
-#endif
-#ifndef QT_NO_TEXTEDIT
-                || qobject_cast<QTextEdit*>(test)
-#endif
-#ifndef QT_NO_ITEMVIEWS
-                || qobject_cast<QListView*>(test)
-#endif
-                )) {
+            && (toplevel->windowType() != Qt::SubWindow || toplevel->isAncestorOf(test))) {
             w = test;
             if (next)
                 break;
@@ -2662,7 +2650,10 @@ void QApplicationPrivate::dispatchEnterLeave(QWidget* enter, QWidget* leave) {
         if (!isAlien(w))
             break;
         if (w->testAttribute(Qt::WA_SetCursor)) {
-            parentOfLeavingCursor = w->parentWidget();
+            QWidget *parent = w->parentWidget();
+            while (parent && parent->d_func()->data.in_destructor)
+                parent = parent->parentWidget();
+            parentOfLeavingCursor = parent;
             //continue looping, we need to find the downest alien widget with a cursor.
             // (downest on the screen)
         }
diff --git a/src/gui/kernel/qapplication.h b/src/gui/kernel/qapplication.h
index 12b398d..5a8e325 100644
--- a/src/gui/kernel/qapplication.h
+++ b/src/gui/kernel/qapplication.h
@@ -61,9 +61,6 @@
 
 QT_BEGIN_HEADER
 
-#if defined(Q_OS_SYMBIAN)
-class TWsEvent;
-#endif
 #if defined(Q_WS_S60)
 class CApaApplication;
 #endif
@@ -83,6 +80,9 @@ class QLocale;
 #if defined(Q_WS_QWS)
 class QDecoration;
 #endif
+#if defined(Q_OS_SYMBIAN)
+class QSymbianEvent;
+#endif
 
 class QApplication;
 class QApplicationPrivate;
@@ -241,10 +241,8 @@ public:
     int x11ProcessEvent(XEvent*);
 #endif
 #if defined(Q_OS_SYMBIAN)
-    int s60ProcessEvent(TWsEvent *event);
-    virtual bool s60EventFilter(TWsEvent *aEvent);
-    void symbianHandleCommand(int command);
-    void symbianResourceChange(int type);
+    int symbianProcessEvent(const QSymbianEvent *event);
+    virtual bool symbianEventFilter(const QSymbianEvent *event);
 #endif
 #if defined(Q_WS_QWS)
     virtual bool qwsEventFilter(QWSEvent *);
diff --git a/src/gui/kernel/qapplication_p.h b/src/gui/kernel/qapplication_p.h
index 2d3d18c..65f61e9 100644
--- a/src/gui/kernel/qapplication_p.h
+++ b/src/gui/kernel/qapplication_p.h
@@ -503,6 +503,11 @@ public:
     static void setNavigationMode(Qt::NavigationMode mode);
     static TUint resolveS60ScanCode(TInt scanCode, TUint keysym);
     QSet<WId> nativeWindows;
+
+    int symbianProcessWsEvent(const TWsEvent *event);
+    int symbianHandleCommand(int command);
+    int symbianResourceChange(int type);
+
 #endif
 #if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined (Q_WS_QWS)
     void sendSyntheticEnterLeave(QWidget *widget);
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index cb9dda4..689429e 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -42,6 +42,7 @@
 #include "qapplication_p.h"
 #include "qsessionmanager.h"
 #include "qevent.h"
+#include "qsymbianevent.h"
 #include "qeventdispatcher_s60_p.h"
 #include "qwidget.h"
 #include "qdesktopwidget.h"
@@ -1056,6 +1057,13 @@ void qt_init(QApplicationPrivate * /* priv */, int)
     TDisplayMode mode = S60->screenDevice()->DisplayMode();
     S60->screenDepth = TDisplayModeUtils::NumDisplayModeBitsPerPixel(mode);
 
+    //NB: RWsSession::GetColorModeList tells you what window modes are supported,
+    //not what bitmap formats.
+    if(QSysInfo::symbianVersion() == QSysInfo::SV_9_2)
+        S60->supportsPremultipliedAlpha = 0;
+    else
+        S60->supportsPremultipliedAlpha = 1;
+
     RProcess me;
     TSecureId securId = me.SecureId();
     S60->uid = securId.operator TUid();
@@ -1084,6 +1092,13 @@ void qt_init(QApplicationPrivate * /* priv */, int)
     err = HAL::Get(HALData::EPen, touch);
     if (err != KErrNone || touchIsUnsupportedOnSystem)
         touch = 0;
+#ifdef __WINS__
+    if(QSysInfo::symbianVersion() <= QSysInfo::SV_9_4) {
+        //for symbian SDK emulator, force values to match typical devices.
+        mouse = 0;
+        touch = touchIsUnsupportedOnSystem ? 0 : 1;
+    }
+#endif
     if (mouse || machineUID == KMachineUidSamsungI8510) {
         S60->hasTouchscreen = false;
         S60->virtualMouseRequired = false;
@@ -1419,43 +1434,47 @@ void QApplication::beep()
     \warning This function is only available on Symbian.
     \since 4.6
 
-    This function processes an individual Symbian window server
+    This function processes an individual Symbian event
     \a event. It returns 1 if the event was handled, 0 if
     the \a event was not handled, and -1 if the event was
-    not handled because the event handle (\c{TWsEvent::Handle()})
-    is not known to Qt.
+    not handled because the event is not known to Qt.
  */
-int QApplication::s60ProcessEvent(TWsEvent *event)
+
+int QApplication::symbianProcessEvent(const QSymbianEvent *event)
 {
-    bool handled = s60EventFilter(event);
-    if (handled)
+    Q_D(QApplication);
+
+    QScopedLoopLevelCounter counter(d->threadData);
+
+    QWidget *w = qApp ? qApp->focusWidget() : 0;
+    if (w) {
+        QInputContext *ic = w->inputContext();
+        if (ic && ic->symbianFilterEvent(w, event))
+            return 1;
+    }
+
+    if (symbianEventFilter(event))
         return 1;
 
+    switch (event->type()) {
+    case QSymbianEvent::WindowServerEvent:
+        return d->symbianProcessWsEvent(event->windowServerEvent());
+    case QSymbianEvent::CommandEvent:
+        return d->symbianHandleCommand(event->command());
+    case QSymbianEvent::ResourceChangeEvent:
+        return d->symbianResourceChange(event->resourceChangeType());
+    default:
+        return -1;
+    }
+}
+
+int QApplicationPrivate::symbianProcessWsEvent(const TWsEvent *event)
+{
     // Qt event handling. Handle some events regardless of if the handle is in our
     // widget map or not.
     CCoeControl* control = reinterpret_cast<CCoeControl*>(event->Handle());
     const bool controlInMap = QWidgetPrivate::mapper && QWidgetPrivate::mapper->contains(control);
     switch (event->Type()) {
-#if !defined(QT_NO_IM) && defined(Q_WS_S60)
-    case EEventKey:
-    case EEventKeyUp:
-    case EEventKeyDown:
-    {
-        // The control doesn't seem to be any of our widgets, so rely on the focused
-        // widget instead. If the user needs the control, it can be found inside the
-        // event structure.
-        QWidget *w = qApp ? qApp->focusWidget() : 0;
-        if (w) {
-            QInputContext *ic = w->inputContext();
-            if (ic && ic->s60FilterEvent(w, event)) {
-                return 1;
-            } else {
-                return 0;
-            }
-        }
-        break;
-    }
-#endif
     case EEventPointerEnter:
         if (controlInMap)
             return 1; // Qt::Enter will be generated in HandlePointerL
@@ -1544,15 +1563,15 @@ int QApplication::s60ProcessEvent(TWsEvent *event)
 
   If you create an application that inherits QApplication and reimplement
   this function, you get direct access to events that the are received
-  from the Symbian window server. The events are passed in the TWsEvent
-  \a aEvent parameter.
+  from Symbian. The events are passed in the \a event parameter.
 
   Return true if you want to stop the event from being processed. Return
-  false for normal event dispatching. The default implementation
-  false, and does nothing with \a aEvent.
+  false for normal event dispatching. The default implementation returns
+  false, and does nothing with \a event.
  */
-bool QApplication::s60EventFilter(TWsEvent * /* aEvent */)
+bool QApplication::symbianEventFilter(const QSymbianEvent *event)
 {
+    Q_UNUSED(event);
     return false;
 }
 
@@ -1567,32 +1586,39 @@ bool QApplication::s60EventFilter(TWsEvent * /* aEvent */)
 
   \sa s60EventFilter(), s60ProcessEvent()
 */
-void QApplication::symbianHandleCommand(int command)
+int QApplicationPrivate::symbianHandleCommand(int command)
 {
-    QScopedLoopLevelCounter counter(d_func()->threadData);
+    Q_Q(QApplication);
+    int ret = 0;
+
     switch (command) {
 #ifdef Q_WS_S60
     case EAknSoftkeyExit: {
         QCloseEvent ev;
-        QApplication::sendSpontaneousEvent(this, &ev);
-        if (ev.isAccepted())
-            quit();
+        QApplication::sendSpontaneousEvent(q, &ev);
+        if (ev.isAccepted()) {
+            q->quit();
+            ret = 1;
+        }
         break;
     }
 #endif
     case EEikCmdExit:
-        quit();
+        q->quit();
+        ret = 1;
         break;
     default:
         bool handled = QSoftKeyManager::handleCommand(command);
+        if (handled)
+            ret = 1;
 #ifdef Q_WS_S60
-        if (!handled)
-            QMenuBarPrivate::symbianCommands(command);
-#else
-        Q_UNUSED(handled);
+        else
+            ret = QMenuBarPrivate::symbianCommands(command);
 #endif
         break;
     }
+
+    return ret;
 }
 
 /*!
@@ -1604,8 +1630,10 @@ void QApplication::symbianHandleCommand(int command)
   Currently, KEikDynamicLayoutVariantSwitch and
   KAknsMessageSkinChange are handled.
  */
-void QApplication::symbianResourceChange(int type)
+int QApplicationPrivate::symbianResourceChange(int type)
 {
+    int ret = 0;
+
     switch (type) {
 #ifdef Q_WS_S60
     case KEikDynamicLayoutVariantSwitch:
@@ -1624,22 +1652,28 @@ void QApplication::symbianResourceChange(int type)
 #endif
             s60Style = qobject_cast<QS60Style*>(QApplication::style());
 
-        if (s60Style)
+        if (s60Style) {
             s60Style->d_func()->handleDynamicLayoutVariantSwitch();
+            ret = 1;
+        }
 #endif
         }
         break;
 
 #ifndef QT_NO_STYLE_S60
     case KAknsMessageSkinChange:
-        if (QS60Style *s60Style = qobject_cast<QS60Style*>(QApplication::style()))
+        if (QS60Style *s60Style = qobject_cast<QS60Style*>(QApplication::style())) {
             s60Style->d_func()->handleSkinChange();
+            ret = 1;
+        }
         break;
 #endif
 #endif // Q_WS_S60
     default:
         break;
     }
+
+    return ret;
 }
 
 #ifndef QT_NO_WHEELEVENT
diff --git a/src/gui/kernel/qkeymapper_win.cpp b/src/gui/kernel/qkeymapper_win.cpp
index be207df..f95efa2 100644
--- a/src/gui/kernel/qkeymapper_win.cpp
+++ b/src/gui/kernel/qkeymapper_win.cpp
@@ -438,10 +438,10 @@ static const Qt::KeyboardModifiers ModsTbl[] = {
 */
 inline int winceKeyBend(int keyCode)
 {
-#ifdef Q_OS_WINCE_WM
+#if defined(Q_OS_WINCE_WM) && defined(QT_KEYPAD_NAVIGATION)
     // remap return or action key to select key for windows mobile.
     // will be changed to a table remapping function in the next version (4.6/7).
-    if (keyCode == 13)
+    if (keyCode == VK_RETURN && QApplication::keypadNavigationEnabled())
         return Qt::Key_Select;
     else
         return KeyTbl[keyCode];
diff --git a/src/gui/kernel/qt_s60_p.h b/src/gui/kernel/qt_s60_p.h
index d33791b..e25bc81 100644
--- a/src/gui/kernel/qt_s60_p.h
+++ b/src/gui/kernel/qt_s60_p.h
@@ -81,6 +81,9 @@ QT_BEGIN_NAMESPACE
 // system events seems to start with 0x10
 const TInt KInternalStatusPaneChange = 0x50000000;
 
+//this macro exists because EColor16MAP enum value doesn't exist in Symbian OS 9.2
+#define Q_SYMBIAN_ECOLOR16MAP TDisplayMode(13)
+
 class QS60Data
 {
 public:
@@ -108,6 +111,7 @@ public:
     int mouseInteractionEnabled : 1;
     int virtualMouseRequired : 1;
     int qtOwnsS60Environment : 1;
+    int supportsPremultipliedAlpha : 1;
     QApplication::QS60MainApplicationFactory s60ApplicationFactory; // typedef'ed pointer type
     static inline void updateScreenSize();
 	static inline RWsSession& wsSession();
@@ -199,7 +203,7 @@ inline void QS60Data::updateScreenSize()
     S60->screenHeightInPixels = params.iPixelSize.iHeight;
     S60->screenWidthInTwips = params.iTwipsSize.iWidth;
     S60->screenHeightInTwips = params.iTwipsSize.iHeight;
-    
+
     S60->virtualMouseMaxAccel = qMax(S60->screenHeightInPixels, S60->screenWidthInPixels) / 20;
 
     TReal inches = S60->screenHeightInTwips / (TReal)KTwipsPerInch;
@@ -302,11 +306,9 @@ static inline QImage::Format qt_TDisplayMode2Format(TDisplayMode mode)
     case EColor16MA:
         format = QImage::Format_ARGB32;
         break;
-#if !defined(__SERIES60_31__) && !defined(__S60_32__)
-    case EColor16MAP:
+    case Q_SYMBIAN_ECOLOR16MAP:
         format = QImage::Format_ARGB32_Premultiplied;
         break;
-#endif
     default:
         format = QImage::Format_Invalid;
         break;
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index c966aa3..05c6a5b 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -305,6 +305,8 @@ bool qt_mac_insideKeyWindow(const QWidget *w)
 {
 #ifdef QT_MAC_USE_COCOA
     return [[reinterpret_cast<NSView *>(w->winId()) window] isKeyWindow];
+#else
+    Q_UNUSED(w);
 #endif
     return false;
 }
@@ -3301,7 +3303,11 @@ void QWidgetPrivate::show_sys()
             [window miniaturize:window];
 #endif
         } else if (!q->testAttribute(Qt::WA_ShowWithoutActivating)) {
+#ifndef QT_MAC_USE_COCOA
             qt_event_request_activate(q);
+#else
+            [qt_mac_window_for(q) makeKeyWindow];
+#endif
         }
     } else if(topData()->embedded || !q->parentWidget() || q->parentWidget()->isVisible()) {
 #ifndef QT_MAC_USE_COCOA
@@ -3404,8 +3410,13 @@ void QWidgetPrivate::hide_sys()
                 }
 #endif
             }
-            if(w && w->isVisible() && !w->isMinimized())
-                qt_event_request_activate(w);
+            if(w && w->isVisible() && !w->isMinimized()) {
+#ifndef QT_MAC_USE_COCOA
+            qt_event_request_activate(w);
+#else
+            [qt_mac_window_for(w) makeKeyWindow];
+#endif
+            }
         }
     } else {
          invalidateBuffer(q->rect());
diff --git a/src/gui/kernel/qwidget_s60.cpp b/src/gui/kernel/qwidget_s60.cpp
index 8ce5001..abf5ba5 100644
--- a/src/gui/kernel/qwidget_s60.cpp
+++ b/src/gui/kernel/qwidget_s60.cpp
@@ -550,8 +550,13 @@ void QWidgetPrivate::raise_sys()
     Q_Q(QWidget);
 
     Q_ASSERT(q->testAttribute(Qt::WA_WState_Created));
-    if (q->internalWinId())
+    if (q->internalWinId()) {
         q->internalWinId()->DrawableWindow()->SetOrdinalPosition(0);
+
+        // If toplevel widget, raise app to foreground
+        if (q->isWindow())
+            S60->wsSession().SetWindowGroupOrdinalPosition(S60->windowGroup().Identifier(), 0);
+    }
 }
 
 void QWidgetPrivate::lower_sys()
diff --git a/src/gui/kernel/qwidget_wince.cpp b/src/gui/kernel/qwidget_wince.cpp
index 4a0d30c..2fe69e4 100644
--- a/src/gui/kernel/qwidget_wince.cpp
+++ b/src/gui/kernel/qwidget_wince.cpp
@@ -474,7 +474,7 @@ void QWidget::setWindowState(Qt::WindowStates newstate)
     int normal = SW_SHOWNOACTIVATE;
 
     if ((oldstate & Qt::WindowMinimized) && !(newstate & Qt::WindowMinimized))
-       newstate |= Qt::WindowActive;
+        newstate |= Qt::WindowActive;
     if (newstate & Qt::WindowActive)
         normal = SW_SHOWNORMAL;
     if (isWindow()) {
@@ -490,13 +490,13 @@ void QWidget::setWindowState(Qt::WindowStates newstate)
                 d->topData()->normalGeometry = geometry();
         }
         if ((oldstate & Qt::WindowMaximized) != (newstate & Qt::WindowMaximized)) {
-             if (!(newstate & Qt::WindowMaximized)) {
+            if (!(newstate & Qt::WindowMaximized)) {
                 int style = GetWindowLong(internalWinId(), GWL_STYLE) | WS_BORDER | WS_POPUP | WS_CAPTION;
                 SetWindowLong(internalWinId(), GWL_STYLE, style);
                 SetWindowLong(internalWinId(), GWL_EXSTYLE, GetWindowLong (internalWinId(), GWL_EXSTYLE) & ~ WS_EX_NODRAG);
             }
-             if (isVisible() && newstate & Qt::WindowMaximized)
-                    qt_wince_maximize(this);
+            if (isVisible() && newstate & Qt::WindowMaximized)
+                qt_wince_maximize(this);
             if (isVisible() && !(newstate & Qt::WindowMinimized)) {
                 ShowWindow(internalWinId(), (newstate & Qt::WindowMaximized) ? max : normal);
                 if (!(newstate & Qt::WindowFullScreen)) {
@@ -558,18 +558,10 @@ void QWidget::setWindowState(Qt::WindowStates newstate)
             else if (newstate & Qt::WindowMaximized) {
                 ShowWindow(internalWinId(), max);
                 qt_wince_maximize(this);
+            } else {
+                ShowWindow(internalWinId(), normal);
             }
         }
-        if ((newstate & Qt::WindowMaximized) && !(newstate & Qt::WindowFullScreen)) {
-            QRect r = d->topData()->normalGeometry;
-#ifdef Q_WS_WINCE_WM
-            if (!inherits("QDialog") && !inherits("QMdiArea") && !isVisible()) {
-                d->data.crect.setRect(0, 0, -1, -1);
-            }
-#else
-            qt_wince_maximize(this);
-#endif
-        }
     }
     data->window_state = newstate;
     QWindowStateChangeEvent e(oldstate);
diff --git a/src/gui/kernel/symbian.pri b/src/gui/kernel/symbian.pri
index 5497ccb..69422dd 100644
--- a/src/gui/kernel/symbian.pri
+++ b/src/gui/kernel/symbian.pri
@@ -1,4 +1,7 @@
 symbian {
     contains(QT_CONFIG, s60): LIBS+= $$QMAKE_LIBS_S60
     RESOURCES += symbian/symbianresources.qrc
+
+    HEADERS += symbian/qsymbianevent.h
+    SOURCES += symbian/qsymbianevent.cpp
 }
diff --git a/src/gui/s60framework/qs60mainappui.cpp b/src/gui/s60framework/qs60mainappui.cpp
index e630253..4ad78f9 100644
--- a/src/gui/s60framework/qs60mainappui.cpp
+++ b/src/gui/s60framework/qs60mainappui.cpp
@@ -50,6 +50,7 @@
 
 #include "qs60mainappui.h"
 #include <QtGui/qapplication.h>
+#include <QtGui/qsymbianevent.h>
 #include <QtGui/qmenu.h>
 #include <private/qmenu_p.h>
 #include <private/qt_s60_p.h>
@@ -134,8 +135,10 @@ QS60MainAppUi::~QS60MainAppUi()
  */
 void QS60MainAppUi::HandleCommandL(TInt command)
 {
-    if (qApp)
-        QT_TRYCATCH_LEAVING(qApp->symbianHandleCommand(command));
+    if (qApp) {
+        QSymbianEvent event(QSymbianEvent::CommandEvent, command);
+        QT_TRYCATCH_LEAVING(qApp->symbianProcessEvent(&event));
+    }
 }
 
 /*!
@@ -151,8 +154,10 @@ void QS60MainAppUi::HandleResourceChangeL(TInt type)
 {
     CAknAppUi::HandleResourceChangeL(type);
 
-    if (qApp)
-        QT_TRYCATCH_LEAVING(qApp->symbianResourceChange(type));
+    if (qApp) {
+        QSymbianEvent event(QSymbianEvent::ResourceChangeEvent, type);
+        QT_TRYCATCH_LEAVING(qApp->symbianProcessEvent(&event));
+    }
 }
 
 /*!
@@ -164,16 +169,18 @@ void QS60MainAppUi::HandleResourceChangeL(TInt type)
  * If you override this function, you should call the base class implementation if you do not
  * handle the event.
  */
-void QS60MainAppUi::HandleWsEventL(const TWsEvent& event, CCoeControl *destination)
+void QS60MainAppUi::HandleWsEventL(const TWsEvent& wsEvent, CCoeControl *destination)
 {
     int result = 0;
-    if (qApp)
+    if (qApp) {
+        QSymbianEvent event(&wsEvent);
         QT_TRYCATCH_LEAVING(
-            result = qApp->s60ProcessEvent(const_cast<TWsEvent*>(&event))
+            result = qApp->symbianProcessEvent(&event)
         );
+    }
 
     if (result <= 0)
-        CAknAppUi::HandleWsEventL(event, destination);
+        CAknAppUi::HandleWsEventL(wsEvent, destination);
 }
 
 
diff --git a/src/gui/styles/qs60style.cpp b/src/gui/styles/qs60style.cpp
index 4fa1d03..4c6bc46 100644
--- a/src/gui/styles/qs60style.cpp
+++ b/src/gui/styles/qs60style.cpp
@@ -1313,7 +1313,7 @@ void QS60Style::drawControl(ControlElement element, const QStyleOption *option,
             painter->save();
 
             painter->setClipRect(voptAdj.rect);
-            const bool isSelected = (voptAdj.state & QStyle::State_HasFocus);
+            const bool isSelected = (vopt->state & QStyle::State_Selected);
 
             bool isVisible = false;
             int scrollBarWidth = 0;
@@ -1358,7 +1358,27 @@ void QS60Style::drawControl(ControlElement element, const QStyleOption *option,
 
             // draw the focus rect
             if (isSelected) {
-                const QRect highlightRect = option->rect.adjusted(1,1,-1,-1);
+                QRect highlightRect = option->rect.adjusted(1,1,-1,-1);
+                const QAbstractItemView *view = qobject_cast<const QAbstractItemView *>(widget);
+                if (view && view->selectionBehavior() != QAbstractItemView::SelectItems) {
+                    // set highlight rect so that it is continuous from cell to cell, yet sligthly
+                    // smaller than cell rect
+                    int xBeginning = 0, yBeginning = 0, xEnd = 0, yEnd = 0;
+                    if (view->selectionBehavior() == QAbstractItemView::SelectRows) {
+                        yBeginning = 1; yEnd = -1;
+                        if (vopt->viewItemPosition == QStyleOptionViewItemV4::Beginning)
+                            xBeginning = 1;
+                        else if (vopt->viewItemPosition == QStyleOptionViewItemV4::End)
+                            xEnd = -1;
+                    } else if (view->selectionBehavior() == QAbstractItemView::SelectColumns) {
+                        xBeginning = 1; xEnd = -1;
+                        if (vopt->viewItemPosition == QStyleOptionViewItemV4::Beginning)
+                            yBeginning = 1;
+                        else if (vopt->viewItemPosition == QStyleOptionViewItemV4::End)
+                            yEnd = -1;
+                    }
+                    highlightRect = option->rect.adjusted(xBeginning, yBeginning, xEnd, xBeginning);
+                }
                 QS60StylePrivate::drawSkinElement(QS60StylePrivate::SE_ListHighlight, painter, highlightRect, flags);
             }
 
@@ -1824,8 +1844,8 @@ void QS60Style::drawControl(ControlElement element, const QStyleOption *option,
                 //todo: update to horizontal table graphic
                 QS60StylePrivate::drawSkinElement(QS60StylePrivate::SE_TableHeaderItem, painter, option->rect, flags | QS60StylePrivate::SF_PointWest);
             }
-        } else if (qobject_cast<const QFrame *>(widget)) { 
-            QCommonStyle::drawControl(element, option, painter, widget); 
+        } else if (qobject_cast<const QFrame *>(widget)) {
+            QCommonStyle::drawControl(element, option, painter, widget);
         }
         break;
     case CE_MenuScroller:
@@ -2196,6 +2216,12 @@ QSize QS60Style::sizeFromContents(ContentsType ct, const QStyleOption *opt,
             if (const QStyleOptionFrame *f = qstyleoption_cast<const QStyleOptionFrame *>(opt))
                 sz += QSize(2*f->lineWidth, 4*f->lineWidth);
             break;
+        case CT_TabBarTab:
+            QSize naviPaneSize = QS60StylePrivate::naviPaneSize();
+            sz = QCommonStyle::sizeFromContents( ct, opt, csz, widget);
+            if (naviPaneSize.height() > sz.height())
+                sz.setHeight(naviPaneSize.height());
+            break;
         default:
             sz = QCommonStyle::sizeFromContents( ct, opt, csz, widget);
             break;
@@ -2405,8 +2431,8 @@ QRect QS60Style::subControlRect(ComplexControl control, const QStyleOptionComple
                 case SC_ComboBoxArrow:
                     ret.setRect(
                         ret.x() + ret.width() - buttonMargin - buttonWidth,
-                        ret.y() + buttonMargin, 
-                        buttonWidth, 
+                        ret.y() + buttonMargin,
+                        buttonWidth,
                         height - 2*buttonMargin);
                     break;
                 case SC_ComboBoxEditField: {
diff --git a/src/gui/styles/qs60style.h b/src/gui/styles/qs60style.h
index 6be3197..ab10792 100644
--- a/src/gui/styles/qs60style.h
+++ b/src/gui/styles/qs60style.h
@@ -101,7 +101,7 @@ protected Q_SLOTS:
 private:
     Q_DISABLE_COPY(QS60Style)
     friend class QStyleFactory;
-    friend class QApplication;
+    friend class QApplicationPrivate;
 };
 
 #endif // QT_NO_STYLE_S60
diff --git a/src/gui/styles/qs60style_p.h b/src/gui/styles/qs60style_p.h
index 5422ff6..8e53eee 100644
--- a/src/gui/styles/qs60style_p.h
+++ b/src/gui/styles/qs60style_p.h
@@ -460,6 +460,8 @@ public:
     void handleSkinChange();
 #endif // Q_WS_S60
 
+    static QSize naviPaneSize();
+
 private:
     static void drawPart(QS60StyleEnums::SkinParts part, QPainter *painter,
         const QRect &rect, SkinElementFlags flags = KDefaultSkinElementFlags);
diff --git a/src/gui/styles/qs60style_s60.cpp b/src/gui/styles/qs60style_s60.cpp
index cde48d8..9765066 100644
--- a/src/gui/styles/qs60style_s60.cpp
+++ b/src/gui/styles/qs60style_s60.cpp
@@ -61,6 +61,7 @@
 #include <AknFontAccess.h>
 #include <AknLayoutFont.h>
 #include <aknutils.h>
+#include <aknnavi.h>
 
 #if !defined(QT_NO_STYLE_S60) || defined(QT_PLUGIN)
 
@@ -104,6 +105,7 @@ public:
     static bool disabledPartGraphic(QS60StyleEnums::SkinParts &part);
     static bool disabledFrameGraphic(QS60StylePrivate::SkinFrameElements &frame);
     static QPixmap generateMissingThemeGraphic(QS60StyleEnums::SkinParts &part, const QSize &size, QS60StylePrivate::SkinElementFlags flags);
+    static QSize naviPaneSize();
 
 private:
     static QPixmap createSkinnedGraphicsLX(QS60StyleEnums::SkinParts part,
@@ -747,9 +749,8 @@ QPixmap QS60StyleModeSpecifics::createSkinnedGraphicsLX(QS60StylePrivate::SkinFr
     QPixmap result;
 
 //        QS60WindowSurface::unlockBitmapHeap();
-    static const bool canDoEColor16MAP = !(QSysInfo::s60Version() == QSysInfo::SV_S60_3_1 || QSysInfo::s60Version() == QSysInfo::SV_S60_3_2);
-    static const TDisplayMode displayMode = canDoEColor16MAP ? TDisplayMode(13) : EColor16MA; // 13 = EColor16MAP
-    static const TInt drawParam = canDoEColor16MAP ? KAknsDrawParamDefault : KAknsDrawParamNoClearUnderImage|KAknsDrawParamRGBOnly;
+    static const TDisplayMode displayMode = S60->supportsPremultipliedAlpha ? Q_SYMBIAN_ECOLOR16MAP : EColor16MA;
+    static const TInt drawParam = S60->supportsPremultipliedAlpha ? KAknsDrawParamDefault : KAknsDrawParamNoClearUnderImage|KAknsDrawParamRGBOnly;
 
     CFbsBitmap *frame = new (ELeave) CFbsBitmap(); //offscreen
     CleanupStack::PushL(frame);
@@ -776,7 +777,7 @@ QPixmap QS60StyleModeSpecifics::createSkinnedGraphicsLX(QS60StylePrivate::SkinFr
                            frameSkinID, centerSkinID,
                            drawParam );
 
-    if (canDoEColor16MAP) {
+    if (S60->supportsPremultipliedAlpha) {
         if (drawn)
             result = fromFbsBitmap(frame, NULL, flags, QImage::Format_ARGB32_Premultiplied);
     } else {
@@ -1389,6 +1390,24 @@ void QS60StylePrivate::handleSkinChange()
         topLevelWidget->ensurePolished();
     }
 }
+
+QSize QS60StylePrivate::naviPaneSize()
+{
+    return QS60StyleModeSpecifics::naviPaneSize();
+}
+
+QSize QS60StyleModeSpecifics::naviPaneSize()
+{
+    CAknNavigationControlContainer* naviContainer;
+    if (S60->statusPane())
+        naviContainer = static_cast<CAknNavigationControlContainer*>
+            (S60->statusPane()->ControlL(TUid::Uid(EEikStatusPaneUidNavi)));
+    if (naviContainer)
+        return QSize(naviContainer->Size().iWidth, naviContainer->Size().iHeight);
+    else
+        return QSize(0,0);
+}
+
 #endif // Q_WS_S60
 
 QT_END_NAMESPACE
diff --git a/src/gui/styles/qs60style_simulated.cpp b/src/gui/styles/qs60style_simulated.cpp
index 89a9158..8a2616d 100644
--- a/src/gui/styles/qs60style_simulated.cpp
+++ b/src/gui/styles/qs60style_simulated.cpp
@@ -326,6 +326,10 @@ QPixmap QS60StylePrivate::backgroundTexture()
     return *m_background;
 }
 
+QSize QS60StylePrivate::naviPaneSize()
+{
+    return QSize(0, 0);
+}
 
 bool QS60StylePrivate::isTouchSupported()
 {
diff --git a/src/gui/styles/qwindowsmobilestyle.cpp b/src/gui/styles/qwindowsmobilestyle.cpp
index d27b1ec..5fa6251 100644
--- a/src/gui/styles/qwindowsmobilestyle.cpp
+++ b/src/gui/styles/qwindowsmobilestyle.cpp
@@ -5592,8 +5592,43 @@ void QWindowsMobileStyle::drawControl(ControlElement element, const QStyleOption
                          painter->drawLine(rect.bottomLeft(), rect.bottomRight());
              }
 #endif // QT_NO_SCROLLAREA
-            break; }
-
+            break;
+        }
+#ifndef QT_NO_COMBOBOX
+    case CE_ComboBoxLabel:
+        // This is copied from qcommonstyle.cpp with the difference, that
+        // the editRect isn't adjusted when calling drawItemText.
+        if (const QStyleOptionComboBox *cb = qstyleoption_cast<const QStyleOptionComboBox *>(option)) {
+            QRect editRect = proxy()->subControlRect(CC_ComboBox, cb, SC_ComboBoxEditField, widget);
+            painter->save();
+            painter->setClipRect(editRect);
+            if (!cb->currentIcon.isNull()) {
+                QIcon::Mode mode = cb->state & State_Enabled ? QIcon::Normal
+                                                             : QIcon::Disabled;
+                QPixmap pixmap = cb->currentIcon.pixmap(cb->iconSize, mode);
+                QRect iconRect(editRect);
+                iconRect.setWidth(cb->iconSize.width() + 4);
+                iconRect = alignedRect(cb->direction,
+                                       Qt::AlignLeft | Qt::AlignVCenter,
+                                       iconRect.size(), editRect);
+                if (cb->editable)
+                    painter->fillRect(iconRect, option->palette.brush(QPalette::Base));
+                proxy()->drawItemPixmap(painter, iconRect, Qt::AlignCenter, pixmap);
+
+                if (cb->direction == Qt::RightToLeft)
+                    editRect.translate(-4 - cb->iconSize.width(), 0);
+                else
+                    editRect.translate(cb->iconSize.width() + 4, 0);
+            }
+            if (!cb->currentText.isEmpty() && !cb->editable) {
+                proxy()->drawItemText(painter, editRect,
+                             visualAlignment(cb->direction, Qt::AlignLeft | Qt::AlignVCenter),
+                             cb->palette, cb->state & State_Enabled, cb->currentText);
+            }
+            painter->restore();
+        }
+        break;
+#endif // QT_NO_COMBOBOX
 #ifndef QT_NO_DOCKWIDGET
     case CE_DockWidgetTitle:
         if (const QStyleOptionDockWidget *dwOpt = qstyleoption_cast<const QStyleOptionDockWidget *>(option)) {
@@ -6003,7 +6038,7 @@ void QWindowsMobileStyle::drawComplexControl(ComplexControl control, const QStyl
         }
         painter->restore();
         break;
-#endif // QT_NO_SLIDER
+#endif // QT_NO_SCROLLBAR
     case CC_ToolButton:
         if (const QStyleOptionToolButton *toolbutton
                 = qstyleoption_cast<const QStyleOptionToolButton *>(option)) {
@@ -6154,24 +6189,24 @@ void QWindowsMobileStyle::drawComplexControl(ComplexControl control, const QStyl
                 qDrawPlainRect(painter, option->rect, option->palette.shadow().color(), proxy()->pixelMetric(PM_ComboBoxFrameWidth, option, widget), &editBrush);
             else
                 painter->fillRect(option->rect, editBrush);
-                State flags = State_None;
-                QRect ar = proxy()->subControlRect(CC_ComboBox, cmb, SC_ComboBoxArrow, widget);
-                if ((option->state & State_On)) {
-                  painter->fillRect(ar.adjusted(0, 0, 1, 1),cmb->palette.brush(QPalette::Shadow));
-                }
-                if (d->doubleControls)
-                  ar.adjust(5, 0, 5, 0);
-                else
-                  ar.adjust(2, 0, -2, 0);
-                if (option->state & State_Enabled)
-                    flags |= State_Enabled;
-                if (option->state & State_On)
-                    flags |= State_Sunken;
-                QStyleOption arrowOpt(0);
-                arrowOpt.rect = ar;
-                arrowOpt.palette = cmb->palette;
-                arrowOpt.state = flags;
-                proxy()->drawPrimitive(PrimitiveElement(PE_IndicatorArrowDownBig), &arrowOpt, painter, widget);
+            State flags = State_None;
+            QRect ar = proxy()->subControlRect(CC_ComboBox, cmb, SC_ComboBoxArrow, widget);
+            if ((option->state & State_On)) {
+                painter->fillRect(ar.adjusted(0, 0, 1, 1),cmb->palette.brush(QPalette::Shadow));
+            }
+            if (d->doubleControls)
+                ar.adjust(5, 0, 5, 0);
+            else
+                ar.adjust(2, 0, -2, 0);
+            if (option->state & State_Enabled)
+                flags |= State_Enabled;
+            if (option->state & State_On)
+                flags |= State_Sunken;
+            QStyleOption arrowOpt(0);
+            arrowOpt.rect = ar;
+            arrowOpt.palette = cmb->palette;
+            arrowOpt.state = flags;
+            proxy()->drawPrimitive(PrimitiveElement(PE_IndicatorArrowDownBig), &arrowOpt, painter, widget);
             if (cmb->subControls & SC_ComboBoxEditField) {
                 QRect re = proxy()->subControlRect(CC_ComboBox, cmb, SC_ComboBoxEditField, widget);
                 if (cmb->state & State_HasFocus && !cmb->editable)
@@ -6335,7 +6370,7 @@ QSize QWindowsMobileStyle::sizeFromContents(ContentsType type, const QStyleOptio
     case CT_ComboBox:
         if (const QStyleOptionComboBox *comboBox = qstyleoption_cast<const QStyleOptionComboBox *>(option)) {
             int fw = comboBox->frame ? proxy()->pixelMetric(PM_ComboBoxFrameWidth, option, widget) * 2 : 0;
-            newSize = QSize(newSize.width() + fw + 9, newSize.height() + fw-4); //Nine is a magic Number - See CommonStyle for real magic (23)
+            newSize = QSize(newSize.width() + fw + 9, newSize.height() + fw); //Nine is a magic Number - See CommonStyle for real magic (23)
         }
         break;
 #endif
@@ -6618,14 +6653,21 @@ QRect QWindowsMobileStyle::subControlRect(ComplexControl control, const QStyleOp
         switch (subControl) {
         case SC_ComboBoxArrow:
             rect.setRect(xpos, y + bmarg, he - 2*bmarg, he - 2*bmarg);
-            rect.setRect(xpos, y + bmarg, int((he - 2*bmarg)), he - 2*bmarg);
             break;
-         case SC_ComboBoxEditField:
-             rect.setRect(x + margin+4, y + margin+2, wi - 4 * margin - int((he - 2*bmarg) * 0.84f) -2, he - 2 * margin-4);
-             break;
-          case SC_ComboBoxFrame:
-              rect = comboBox->rect;
-              break;
+        case SC_ComboBoxEditField:
+            rect.setRect(x + margin, y + margin, wi - 2 * margin - int((he - 2*bmarg) * 0.84f), he - 2 * margin);
+            if (d->doubleControls) {
+                if (comboBox->editable)
+                    rect.adjust(2, 0, 0, 0);
+                else
+                    rect.adjust(4, 2, 0, -2);
+            } else if (!comboBox->editable) {
+                rect.adjust(2, 1, 0, -1);
+            }
+            break;
+        case SC_ComboBoxFrame:
+            rect = comboBox->rect;
+            break;
         default:
         break;
         }
@@ -6999,7 +7041,7 @@ int QWindowsMobileStyle::pixelMetric(PixelMetric pm, const QStyleOption *opt, co
        } else {
            d->doubleControls ? ret = 36 : ret = 18;
        }
-        break;        
+        break;
    case PM_ScrollBarExtent: {
        
        if (d->smartphone)
@@ -7055,7 +7097,7 @@ int QWindowsMobileStyle::pixelMetric(PixelMetric pm, const QStyleOption *opt, co
         break;
     case PM_TextCursorWidth:
         ret = 2;
-        break;        
+        break;
     case PM_TabBar_ScrollButtonOverlap:
         ret = 0;
         break;
@@ -7089,7 +7131,7 @@ int QWindowsMobileStyle::styleHint(StyleHint hint, const QStyleOption *opt, cons
 #endif
     case SH_ToolBar_Movable:
         ret = false;
-        break;    
+        break;
     case SH_ScrollBar_ContextMenu:
         ret = false;
         break;
diff --git a/src/gui/symbian/qsymbianevent.cpp b/src/gui/symbian/qsymbianevent.cpp
new file mode 100644
index 0000000..af2c861
--- /dev/null
+++ b/src/gui/symbian/qsymbianevent.cpp
@@ -0,0 +1,143 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 "qsymbianevent.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QSymbianEvent
+    \brief The QSymbianEvent class contains a Symbian event of any type.
+    \since 4.6
+
+    The class is used as a generic container type for all types of Symbian
+    events.
+
+    \note This class is only available on Symbian.
+
+    \sa QApplication::symbianEventFilter()
+*/
+
+/*!
+    \enum QSymbianEvent::Type
+
+    \value InvalidEvent        The event is not valid.
+    \value WindowServerEvent   Indicates an event of type \c TWsEvent.
+    \value CommandEvent        Indicates that the event is a Symbian command.
+    \value ResourceChangeEvent Indicates that the event is a Symbian resource change type.
+*/
+
+/*!
+    \fn QSymbianEvent::type()
+
+    Returns the event type contained in the QSymbianEvent instance.
+*/
+
+/*!
+    \fn QSymbianEvent::isValid()
+
+    Returns whether this QSymbianEvent instance contains a valid event.
+*/
+
+/*!
+    Constructs a QSymbianEvent containing the given window server event
+    \a windowServerEvent.
+*/
+QSymbianEvent::QSymbianEvent(const TWsEvent *windowServerEvent)
+    : m_type(WindowServerEvent)
+    , m_eventPtr(windowServerEvent)
+{
+}
+
+/*!
+    Constructs a QSymbianEvent containing the given event value
+    \a value. The type of event is controlled by the \a eventType parameter.
+*/
+QSymbianEvent::QSymbianEvent(QSymbianEvent::Type eventType, int value)
+{
+    switch (eventType) {
+    case CommandEvent:
+    case ResourceChangeEvent:
+        m_type = eventType;
+        m_eventValue = value;
+        break;
+    default:
+        m_type = InvalidEvent;
+        m_eventValue = 0;
+        break;
+    }
+}
+
+/*!
+    Destroys the QSymbianEvent.
+*/
+QSymbianEvent::~QSymbianEvent()
+{
+}
+
+/*!
+    Returns the window server event contained in the class instance, or 0 if the event type
+    is not \c WindowServerEvent.
+*/
+const TWsEvent *QSymbianEvent::windowServerEvent() const
+{
+    return (m_type == WindowServerEvent) ? static_cast<const TWsEvent *>(m_eventPtr) : 0;
+}
+
+/*!
+    Returns the command contained in the class instance, or 0 if the event type
+    is not \c CommandEvent.
+*/
+int QSymbianEvent::command() const
+{
+    return (m_type == CommandEvent) ? m_eventValue : 0;
+}
+
+/*!
+    Returns the resource change type contained in the class instance, or 0 if the event type
+    is not \c ResourceChangeEvent.
+*/
+int QSymbianEvent::resourceChangeType() const
+{
+    return (m_type == ResourceChangeEvent) ? m_eventValue : 0;
+}
+
+QT_END_NAMESPACE
diff --git a/src/gui/symbian/qsymbianevent.h b/src/gui/symbian/qsymbianevent.h
new file mode 100644
index 0000000..74aa5d0
--- /dev/null
+++ b/src/gui/symbian/qsymbianevent.h
@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QSYMBIANEVENT_H
+#define QSYMBIANEVENT_H
+
+#include <QtCore/qglobal.h>
+
+#ifdef Q_OS_SYMBIAN
+
+class TWsEvent;
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class Q_GUI_EXPORT QSymbianEvent
+{
+public:
+    enum Type {
+        InvalidEvent,
+        WindowServerEvent,
+        CommandEvent,
+        ResourceChangeEvent
+    };
+
+    QSymbianEvent(const TWsEvent *windowServerEvent);
+    QSymbianEvent(Type eventType, int value);
+    ~QSymbianEvent();
+
+    Type type() const;
+    bool isValid() const;
+
+    const TWsEvent *windowServerEvent() const;
+    int command() const;
+    int resourceChangeType() const;
+
+private:
+    Type m_type;
+    union {
+        const void *m_eventPtr;
+        int m_eventValue;
+
+        qint64 m_reserved;
+    };
+};
+
+inline QSymbianEvent::Type QSymbianEvent::type() const
+{
+    return m_type;
+}
+
+inline bool QSymbianEvent::isValid() const
+{
+    return m_type != InvalidEvent;
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // Q_OS_SYMBIAN
+
+#endif // QSYMBIANEVENT_H
diff --git a/src/gui/text/qfontengine_mac.mm b/src/gui/text/qfontengine_mac.mm
index 758d8af..8ce437d 100644
--- a/src/gui/text/qfontengine_mac.mm
+++ b/src/gui/text/qfontengine_mac.mm
@@ -119,6 +119,28 @@ OSStatus QMacFontPath::closePath(void *data)
 }
 
 
+
+void qmacfontengine_gamma_correct(QImage *image)
+{
+    extern uchar qt_pow_rgb_gamma[256];
+
+    // gamma correct the pixels back to linear color space...
+    int h = image->height();
+    int w = image->width();
+
+    for (int y=0; y<h; ++y) {
+        uint *pixels = (uint *) image->scanLine(y);
+        for (int x=0; x<w; ++x) {
+            uint p = pixels[x];
+            uint r = qt_pow_rgb_gamma[qRed(p)];
+            uint g = qt_pow_rgb_gamma[qGreen(p)];
+            uint b = qt_pow_rgb_gamma[qBlue(p)];
+            pixels[x] = (r << 16) | (g << 8) | b | 0xff000000;
+        }
+    }
+}
+
+
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
 QCoreTextFontEngineMulti::QCoreTextFontEngineMulti(const ATSFontFamilyRef &, const ATSFontRef &atsFontRef, const QFontDef &fontDef, bool kerning)
     : QFontEngineMulti(0)
@@ -534,7 +556,7 @@ void QCoreTextFontEngine::addGlyphsToPath(glyph_t *glyphs, QFixedPoint *position
     }
 }
 
-QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
+QImage QCoreTextFontEngine::imageForGlyph(glyph_t glyph, int margin, bool aa)
 {
     const glyph_metrics_t br = boundingBox(glyph);
     QImage im(qRound(br.width)+2, qRound(br.height)+2, QImage::Format_RGB32);
@@ -549,9 +571,10 @@ QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
                                              8, im.bytesPerLine(), colorspace,
                                              cgflags);
     CGContextSetFontSize(ctx, fontDef.pixelSize);
-    CGContextSetShouldAntialias(ctx, fontDef.pointSize > qt_antialiasing_threshold
-				&& !(fontDef.styleStrategy & QFont::NoAntialias));
-    CGContextSetShouldSmoothFonts(ctx, false);
+    CGContextSetShouldAntialias(ctx, aa ||
+                                (fontDef.pointSize > qt_antialiasing_threshold
+                                 && !(fontDef.styleStrategy & QFont::NoAntialias)));
+    CGContextSetShouldSmoothFonts(ctx, aa);
     CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx);
     CGAffineTransform cgMatrix = CGAffineTransformMake(1, 0, 0, 1, 0, 0);
 
@@ -586,6 +609,13 @@ QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
 
     CGContextRelease(ctx);
 
+    return im;
+}
+
+QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
+{
+    QImage im = imageForGlyph(glyph, 0, false);
+
     QImage indexed(im.width(), im.height(), QImage::Format_Indexed8);
     QVector<QRgb> colors(256);
     for (int i=0; i<256; ++i)
@@ -605,6 +635,16 @@ QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
     return indexed;
 }
 
+QImage QCoreTextFontEngine::alphaRGBMapForGlyph(glyph_t glyph, int margin, const QTransform &x)
+{
+    if (x.type() >= QTransform::TxScale)
+        return QFontEngine::alphaRGBMapForGlyph(glyph, margin, x);
+
+    QImage im = imageForGlyph(glyph, margin, true);
+    qmacfontengine_gamma_correct(&im);
+    return im;
+}
+
 void QCoreTextFontEngine::recalcAdvances(int numGlyphs, QGlyphLayout *glyphs, QTextEngine::ShaperFlags flags) const
 {
     Q_ASSERT(false);
@@ -790,7 +830,6 @@ static OSStatus atsuPostLayoutCallback(ATSULayoutOperationSelector selector, ATS
             surrogates += (str[i].unicode() >= 0xd800 && str[i].unicode() < 0xdc00
                            && str[i+1].unicode() >= 0xdc00 && str[i+1].unicode() < 0xe000);
         }
-        Q_ASSERT(*nfo->numGlyphs == item->length - surrogates);
 #endif
         for (nextCharStop = item->from; nextCharStop < item->from + item->length; ++nextCharStop)
             if (item->charAttributes[nextCharStop].charStop)
@@ -816,10 +855,13 @@ static OSStatus atsuPostLayoutCallback(ATSULayoutOperationSelector selector, ATS
         QFixed xAdvance = FixedToQFixed(layoutData[glyphIdx + 1].realPos - layoutData[glyphIdx].realPos);
 
         if (glyphId != 0xffff || i == 0) {
-            nfo->glyphs->glyphs[i] = (glyphId & 0x00ffffff) | (fontIdx << 24);
+            if (i < nfo->glyphs->numGlyphs)
+            {
+                nfo->glyphs->glyphs[i] = (glyphId & 0x00ffffff) | (fontIdx << 24);
 
-            nfo->glyphs->advances_y[i] = yAdvance;
-            nfo->glyphs->advances_x[i] = xAdvance;
+                nfo->glyphs->advances_y[i] = yAdvance;
+                nfo->glyphs->advances_x[i] = xAdvance;
+            }
         } else {
             // ATSUI gives us 0xffff as glyph id at the index in the glyph array for
             // a character position that maps to a ligtature. Such a glyph id does not
@@ -989,6 +1031,8 @@ bool QFontEngineMacMulti::stringToCMapInternal(const QChar *str, int len, QGlyph
     nfo.flags = flags;
     nfo.shaperItem = shaperItem;
 
+    int prevNumGlyphs = *nglyphs;
+
     QVarLengthArray<int> mappedFonts(len);
     for (int i = 0; i < len; ++i)
         mappedFonts[i] = 0;
@@ -1100,6 +1144,8 @@ bool QFontEngineMacMulti::stringToCMapInternal(const QChar *str, int len, QGlyph
     }
 
     ATSUClearLayoutCache(textLayout, kATSUFromTextBeginning);
+    if (prevNumGlyphs < *nfo.numGlyphs)
+        return false;
     return true;
 }
 
@@ -1505,19 +1551,7 @@ QImage QFontEngineMac::alphaRGBMapForGlyph(glyph_t glyph, int margin, const QTra
         im = im.transformed(t);
     }
 
-    extern uchar qt_pow_rgb_gamma[256];
-
-    // gamma correct the pixels back to linear color space...
-    for (int y=0; y<im.height(); ++y) {
-        uint *pixels = (uint *) im.scanLine(y);
-        for (int x=0; x<im.width(); ++x) {
-            uint p = pixels[x];
-            uint r = qt_pow_rgb_gamma[qRed(p)];
-            uint g = qt_pow_rgb_gamma[qGreen(p)];
-            uint b = qt_pow_rgb_gamma[qBlue(p)];
-            pixels[x] = (r << 16) | (g << 8) | b | 0xff000000;
-        }
-    }
+    qmacfontengine_gamma_correct(&im);
 
     return im;
 }
diff --git a/src/gui/text/qfontengine_p.h b/src/gui/text/qfontengine_p.h
index 50124fa..728c344 100644
--- a/src/gui/text/qfontengine_p.h
+++ b/src/gui/text/qfontengine_p.h
@@ -448,12 +448,13 @@ public:
     virtual bool getSfntTableData(uint /*tag*/, uchar * /*buffer*/, uint * /*length*/) const;
     virtual void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics);
     virtual QImage alphaMapForGlyph(glyph_t);
+    virtual QImage alphaRGBMapForGlyph(glyph_t, int margin, const QTransform &t);
     virtual qreal minRightBearing() const;
     virtual qreal minLeftBearing() const;
 
 
-
 private:
+    QImage imageForGlyph(glyph_t glyph, int margin, bool colorful);
     CTFontRef ctfont;
     CGFontRef cgFont;
     QCoreTextFontEngineMulti *parentEngine;
diff --git a/src/gui/text/qtextengine_mac.cpp b/src/gui/text/qtextengine_mac.cpp
index 4f20094..e101830 100644
--- a/src/gui/text/qtextengine_mac.cpp
+++ b/src/gui/text/qtextengine_mac.cpp
@@ -50,7 +50,6 @@ static void heuristicSetGlyphAttributes(const QChar *uc, int length, QGlyphLayou
 {
     // ### zeroWidth and justification are missing here!!!!!
 
-    Q_ASSERT(num_glyphs <= length);
     Q_UNUSED(num_glyphs);
 
 //     qDebug("QScriptEngine::heuristicSetGlyphAttributes, num_glyphs=%d", item->num_glyphs);
@@ -596,7 +595,7 @@ void QTextEngine::shapeTextMac(int item) const
     }
 
     while (true) {
-	ensureSpace(num_glyphs);
+        ensureSpace(num_glyphs);
         num_glyphs = layoutData->glyphLayout.numGlyphs - layoutData->used;
 
         QGlyphLayout g = availableGlyphs(&si);
@@ -611,9 +610,9 @@ void QTextEngine::shapeTextMac(int item) const
                              log_clusters,
                              attributes())) {
 
-		heuristicSetGlyphAttributes(str, len, &g, log_clusters, num_glyphs);
-		break;
-	}
+            heuristicSetGlyphAttributes(str, len, &g, log_clusters, num_glyphs);
+            break;
+        }
     }
 
     si.num_glyphs = num_glyphs;
diff --git a/src/gui/widgets/qdialogbuttonbox.cpp b/src/gui/widgets/qdialogbuttonbox.cpp
index 10f8db8..2231b98 100644
--- a/src/gui/widgets/qdialogbuttonbox.cpp
+++ b/src/gui/widgets/qdialogbuttonbox.cpp
@@ -873,6 +873,11 @@ void QDialogButtonBox::setOrientation(Qt::Orientation orientation)
 void QDialogButtonBox::clear()
 {
     Q_D(QDialogButtonBox);
+#ifdef QT_SOFTKEYS_ENABLED
+    // Delete softkey actions as they have the buttons as parents
+    qDeleteAll(d->softKeyActions.values());
+    d->softKeyActions.clear();
+#endif
     // Remove the created standard buttons, they should be in the other lists, which will
     // do the deletion
     d->standardButtonHash.clear();
@@ -1025,6 +1030,11 @@ QPushButton *QDialogButtonBox::addButton(StandardButton button)
 void QDialogButtonBox::setStandardButtons(StandardButtons buttons)
 {
     Q_D(QDialogButtonBox);
+#ifdef QT_SOFTKEYS_ENABLED
+    // Delete softkey actions since they have the buttons as parents
+    qDeleteAll(d->softKeyActions.values());
+    d->softKeyActions.clear();
+#endif
     // Clear out all the old standard buttons, then recreate them.
     qDeleteAll(d->standardButtonHash.keys());
     d->standardButtonHash.clear();
diff --git a/src/gui/widgets/qmenu_mac.mm b/src/gui/widgets/qmenu_mac.mm
index cee38ee..b238faf 100644
--- a/src/gui/widgets/qmenu_mac.mm
+++ b/src/gui/widgets/qmenu_mac.mm
@@ -1771,6 +1771,16 @@ QMenuBarPrivate::QMacMenuBarPrivate::removeAction(QMacMenuAction *action)
     actionItems.removeAll(action);
 }
 
+bool QMenuBarPrivate::macWidgetHasNativeMenubar(QWidget *widget)
+{
+    // This function is different from q->isNativeMenuBar(), as
+    // it returns true only if a native menu bar is actually
+    // _created_.
+    if (!widget)
+        return false;
+    return menubars()->contains(widget->window());
+}
+
 void
 QMenuBarPrivate::macCreateMenuBar(QWidget *parent)
 {
@@ -1778,16 +1788,22 @@ QMenuBarPrivate::macCreateMenuBar(QWidget *parent)
     static int dontUseNativeMenuBar = -1;
     // We call the isNativeMenuBar function here
     // because that will make sure that local overrides
-    // are dealt with correctly.
+    // are dealt with correctly. q->isNativeMenuBar() will, if not
+    // overridden, depend on the attribute Qt::AA_DontUseNativeMenuBar:
     bool qt_mac_no_native_menubar = !q->isNativeMenuBar();
     if (qt_mac_no_native_menubar == false && dontUseNativeMenuBar < 0) {
+        // The menubar is set to be native. Let's check (one time only
+        // for all menubars) if this is OK with the rest of the environment.
+        // As a result, Qt::AA_DontUseNativeMenuBar is set. NB: the application
+        // might still choose to not respect, or change, this flag.
         bool isPlugin = QApplication::testAttribute(Qt::AA_MacPluginApplication);
         bool environmentSaysNo = !qgetenv("QT_MAC_NO_NATIVE_MENUBAR").isEmpty();
         dontUseNativeMenuBar = isPlugin || environmentSaysNo;
         QApplication::instance()->setAttribute(Qt::AA_DontUseNativeMenuBar, dontUseNativeMenuBar);
         qt_mac_no_native_menubar = !q->isNativeMenuBar();
     }
-    if (!qt_mac_no_native_menubar) {
+    if (qt_mac_no_native_menubar == false) {
+        // INVARIANT: Use native menubar.
         extern void qt_event_request_menubarupdate(); //qapplication_mac.cpp
         qt_event_request_menubarupdate();
         if (!parent && !fallback) {
diff --git a/src/gui/widgets/qmenu_symbian.cpp b/src/gui/widgets/qmenu_symbian.cpp
index d757f98..94c4177 100644
--- a/src/gui/widgets/qmenu_symbian.cpp
+++ b/src/gui/widgets/qmenu_symbian.cpp
@@ -243,11 +243,14 @@ void qt_symbian_show_submenu( CEikMenuPane* menuPane, int id)
 }
 #endif // Q_WS_S60
 
-void QMenuBarPrivate::symbianCommands(int command)
+int QMenuBarPrivate::symbianCommands(int command)
 {
+    int ret = 0;
+
     if (command == contexMenuCommand && !widgetWithContextMenu.isNull()) {
         QContextMenuEvent* event = new QContextMenuEvent(QContextMenuEvent::Keyboard, QPoint(0,0));
         QCoreApplication::postEvent(widgetWithContextMenu, event);
+        ret = 1;
     }
 
     int size = nativeMenuBars.size();
@@ -258,8 +261,11 @@ void QMenuBarPrivate::symbianCommands(int command)
 
         emit nativeMenuBars.at(i)->triggered(menu->action);
         menu->action->activate(QAction::Trigger);
+        ret = 1;
         break;
     }
+
+    return ret;
 }
 
 void QMenuBarPrivate::symbianCreateMenuBar(QWidget *parent)
diff --git a/src/gui/widgets/qmenubar.cpp b/src/gui/widgets/qmenubar.cpp
index 13e7de4..f2f0722 100644
--- a/src/gui/widgets/qmenubar.cpp
+++ b/src/gui/widgets/qmenubar.cpp
@@ -1370,8 +1370,13 @@ void QMenuBarPrivate::handleReparent()
     oldWindow = newWindow;
 
 #ifdef Q_WS_MAC
-    macDestroyMenuBar();
-    macCreateMenuBar(newParent);
+    if (q->isNativeMenuBar() && !macWidgetHasNativeMenubar(newParent)) {
+        // If the new parent got a native menubar from before, keep that
+        // menubar rather than replace it with this one (because a parents
+        // menubar has precedence over children menubars).
+        macDestroyMenuBar();
+        macCreateMenuBar(newParent);
+    }
 #endif
 
 #ifdef Q_WS_WINCE
diff --git a/src/gui/widgets/qmenubar_p.h b/src/gui/widgets/qmenubar_p.h
index 0b27b97..da2b8d7 100644
--- a/src/gui/widgets/qmenubar_p.h
+++ b/src/gui/widgets/qmenubar_p.h
@@ -196,6 +196,7 @@ public:
             return 0;
         }
     } *mac_menubar;
+    bool macWidgetHasNativeMenubar(QWidget *widget);
     void macCreateMenuBar(QWidget *);
     void macDestroyMenuBar();
     OSMenuRef macMenu();
@@ -265,7 +266,7 @@ public:
         void insertNativeMenuItems(const QList<QAction*> &actions);
 
     } *symbian_menubar;
-    static void symbianCommands(int command);
+    static int symbianCommands(int command);
 
 #endif
 };