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

25 files changed, 218 insertions, 128 deletions

diff --git a/src/3rdparty/phonon/phonon/objectdescriptionmodel.h b/src/3rdparty/phonon/phonon/objectdescriptionmodel.h
index ba3cb42..a3c72b2 100644
--- a/src/3rdparty/phonon/phonon/objectdescriptionmodel.h
+++ b/src/3rdparty/phonon/phonon/objectdescriptionmodel.h
@@ -139,6 +139,21 @@ namespace Phonon
             ObjectDescriptionModelDataPrivate *const d;
     };
 
+/* Required to ensure template class vtables are exported on both symbian
+and existing builds. */
+#if defined(Q_OS_SYMBIAN) && defined(Q_CC_RVCT)
+// RVCT compiler (2.2.686) requires the export declaration to be on the class to export vtables
+// MWC compiler works both ways
+// GCCE compiler is unknown (it can't compile QtCore yet)
+#define PHONON_TEMPLATE_CLASS_EXPORT PHONON_EXPORT
+#define PHONON_TEMPLATE_CLASS_MEMBER_EXPORT
+#else
+// Windows builds (at least) do not support export declaration on templated class
+// But if you export a member function, the vtable is implicitly exported
+#define PHONON_TEMPLATE_CLASS_EXPORT
+#define PHONON_TEMPLATE_CLASS_MEMBER_EXPORT PHONON_EXPORT
+#endif
+
     /** \class ObjectDescriptionModel objectdescriptionmodel.h Phonon/ObjectDescriptionModel
      * \short The ObjectDescriptionModel class provides a model from
      * a list of ObjectDescription objects.
@@ -175,7 +190,7 @@ namespace Phonon
      * \author Matthias Kretz <kretz@kde.org>
      */
     template<ObjectDescriptionType type>
-    class ObjectDescriptionModel : public QAbstractListModel
+    class PHONON_TEMPLATE_CLASS_EXPORT ObjectDescriptionModel : public QAbstractListModel
     {
         public:
             Q_OBJECT_CHECK
@@ -188,11 +203,11 @@ namespace Phonon
  */
 #if !defined(Q_CC_MINGW) || __MINGW32_MAJOR_VERSION >= 4
             /** \internal */
-            static PHONON_EXPORT const QMetaObject staticMetaObject;
+            static PHONON_TEMPLATE_CLASS_MEMBER_EXPORT const QMetaObject staticMetaObject;
             /** \internal */
-            PHONON_EXPORT const QMetaObject *metaObject() const;
+            PHONON_TEMPLATE_CLASS_MEMBER_EXPORT const QMetaObject *metaObject() const;
             /** \internal */
-            PHONON_EXPORT void *qt_metacast(const char *_clname);
+            PHONON_TEMPLATE_CLASS_MEMBER_EXPORT void *qt_metacast(const char *_clname);
             //int qt_metacall(QMetaObject::Call _c, int _id, void **_a);
 #endif
 
diff --git a/src/corelib/io/qfsfileengine_unix.cpp b/src/corelib/io/qfsfileengine_unix.cpp
index 114da3b..b0cddaa 100644
--- a/src/corelib/io/qfsfileengine_unix.cpp
+++ b/src/corelib/io/qfsfileengine_unix.cpp
@@ -1255,8 +1255,19 @@ uchar *QFSFileEnginePrivate::map(qint64 offset, qint64 size, QFile::MemoryMapFla
     int realOffset = offset / pagesSize;
     int extra = offset % pagesSize;
 
-    void *mapAddress = mmap((void*)0, (size_t)size + extra,
-                   access, MAP_SHARED, nativeHandle(), realOffset * pagesSize);
+#ifdef Q_OS_SYMBIAN
+    void *mapAddress;
+    TRAPD(err,     mapAddress = mmap((void*)0, (size_t)size + extra,
+                   access, MAP_SHARED, nativeHandle(), realOffset * pagesSize));
+    if (err != KErrNone) {
+        qWarning("OpenC bug: leave from mmap %d", err);
+        mapAddress = MAP_FAILED;
+        errno = EINVAL;
+    }
+#else
+     void *mapAddress = mmap((void*)0, (size_t)size + extra,
+                    access, MAP_SHARED, nativeHandle(), realOffset * pagesSize);
+#endif
     if (MAP_FAILED != mapAddress) {
         uchar *address = extra + static_cast<uchar*>(mapAddress);
         maps[address] = QPair<int,int>(extra, size);
diff --git a/src/gui/dialogs/qprintdialog_mac.mm b/src/gui/dialogs/qprintdialog_mac.mm
index a7587b1..667fc40 100644
--- a/src/gui/dialogs/qprintdialog_mac.mm
+++ b/src/gui/dialogs/qprintdialog_mac.mm
@@ -166,6 +166,12 @@ QT_USE_NAMESPACE
         }
         // Keep us in sync with file output
         PMDestinationType dest;
+
+        // If the user selected print to file, the session has been
+        // changed behind our back and our d->ep->session object is a
+        // dangling pointer. Update it based on the "current" session
+        d->ep->session = static_cast<PMPrintSession>([d->ep->printInfo PMPrintSession]);
+
         PMSessionGetDestinationType(d->ep->session, d->ep->settings, &dest);
         if (dest == kPMDestinationFile) {
             QCFType<CFURLRef> file;
diff --git a/src/gui/egl/qeglproperties.cpp b/src/gui/egl/qeglproperties.cpp
index 02ae729..c61e1d3 100644
--- a/src/gui/egl/qeglproperties.cpp
+++ b/src/gui/egl/qeglproperties.cpp
@@ -313,7 +313,7 @@ QString QEglProperties::toString() const
     int alpha = value(EGL_ALPHA_SIZE);
     int bufferSize = value(EGL_BUFFER_SIZE);
     if (bufferSize == (red + green + blue + alpha))
-        bufferSize = EGL_DONT_CARE;
+        bufferSize = 0;
     str += QLatin1String(" rgba=");
     str += QString::number(red);
     str += QLatin1Char(',');
@@ -322,7 +322,7 @@ QString QEglProperties::toString() const
     str += QString::number(blue);
     str += QLatin1Char(',');
     str += QString::number(alpha);
-    if (bufferSize != EGL_DONT_CARE) {
+    if (bufferSize != 0) {
         // Only report buffer size if different than r+g+b+a.
         str += QLatin1String(" buffer-size=");
         str += QString::number(bufferSize);
diff --git a/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp b/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
index e3cd4f9..f9b5c8c 100644
--- a/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
+++ b/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
@@ -275,8 +275,8 @@ static qreal getFactor(qreal value, qreal min, qreal pref, qreal max)
     }
 }
 
-static qreal getExpandingFactor(qreal expSize, qreal sizeAtPreferred,
-                                qreal sizeAtExpanding, qreal sizeAtMaximum)
+static qreal getExpandingFactor(const qreal &expSize, const qreal &sizeAtPreferred,
+                                const qreal &sizeAtExpanding, const qreal &sizeAtMaximum)
 {
     const qreal lower = qMin(sizeAtPreferred, sizeAtMaximum);
     const qreal upper = qMax(sizeAtPreferred, sizeAtMaximum);
@@ -1842,10 +1842,10 @@ void QGraphicsAnchorLayoutPrivate::findPaths(Orientation orientation)
         }
     }
 
-    // We will walk through every reachable items (non-float) and mark them
-    // by keeping their references on m_nonFloatItems. With this we can easily
-    // identify non-float and float items.
-    identifyNonFloatItems(visited, orientation);
+    // We will walk through every reachable items (non-float) store them in a temporary set.
+    // We them create a set of all items and subtract the non-floating items from the set in
+    // order to get the floating items. The floating items is then stored in m_floatItems
+    identifyFloatItems(visited, orientation);
 }
 
 /*!
@@ -2008,14 +2008,20 @@ QGraphicsAnchorLayoutPrivate::getGraphParts(Orientation orientation)
 
   Use all visited Anchors on findPaths() so we can identify non-float Items.
 */
-void QGraphicsAnchorLayoutPrivate::identifyNonFloatItems(QSet<AnchorData *> visited, Orientation orientation)
+void QGraphicsAnchorLayoutPrivate::identifyFloatItems(const QSet<AnchorData *> &visited, Orientation orientation)
 {
-    m_nonFloatItems[orientation].clear();
+    QSet<QGraphicsLayoutItem *> nonFloating;
 
     foreach (const AnchorData *ad, visited)
-        identifyNonFloatItems_helper(ad, orientation);
+        identifyNonFloatItems_helper(ad, &nonFloating);
+
+    QSet<QGraphicsLayoutItem *> allItems;
+    foreach (QGraphicsLayoutItem *item, items)
+        allItems.insert(item);
+    m_floatItems[orientation] = allItems - nonFloating;
 }
 
+
 /*!
  \internal
 
@@ -2023,22 +2029,22 @@ void QGraphicsAnchorLayoutPrivate::identifyNonFloatItems(QSet<AnchorData *> visi
   If the anchor is Sequential or Parallel, we must iterate on its children recursively until we reach
   internal anchors (items).
 */
-void QGraphicsAnchorLayoutPrivate::identifyNonFloatItems_helper(const AnchorData *ad, Orientation orientation)
+void QGraphicsAnchorLayoutPrivate::identifyNonFloatItems_helper(const AnchorData *ad, QSet<QGraphicsLayoutItem *> *nonFloatingItemsIdentifiedSoFar)
 {
     Q_Q(QGraphicsAnchorLayout);
 
     switch(ad->type) {
     case AnchorData::Normal:
         if (ad->from->m_item == ad->to->m_item && ad->to->m_item != q)
-            m_nonFloatItems[orientation].insert(ad->to->m_item);
+            nonFloatingItemsIdentifiedSoFar->insert(ad->to->m_item);
         break;
     case AnchorData::Sequential:
         foreach (const AnchorData *d, static_cast<const SequentialAnchorData *>(ad)->m_edges)
-            identifyNonFloatItems_helper(d, orientation);
+            identifyNonFloatItems_helper(d, nonFloatingItemsIdentifiedSoFar);
         break;
     case AnchorData::Parallel:
-        identifyNonFloatItems_helper(static_cast<const ParallelAnchorData *>(ad)->firstEdge, orientation);
-        identifyNonFloatItems_helper(static_cast<const ParallelAnchorData *>(ad)->secondEdge, orientation);
+        identifyNonFloatItems_helper(static_cast<const ParallelAnchorData *>(ad)->firstEdge, nonFloatingItemsIdentifiedSoFar);
+        identifyNonFloatItems_helper(static_cast<const ParallelAnchorData *>(ad)->secondEdge, nonFloatingItemsIdentifiedSoFar);
         break;
     }
 }
@@ -2070,7 +2076,10 @@ void QGraphicsAnchorLayoutPrivate::setItemsGeometries(const QRectF &geom)
     foreach (QGraphicsLayoutItem *item, items) {
         QRectF newGeom;
         QSizeF itemPreferredSize = item->effectiveSizeHint(Qt::PreferredSize);
-        if (m_nonFloatItems[Horizontal].contains(item)) {
+        if (m_floatItems[Horizontal].contains(item)) {
+            newGeom.setLeft(0);
+            newGeom.setRight(itemPreferredSize.width());
+        } else {
             firstH = internalVertex(item, Qt::AnchorLeft);
             secondH = internalVertex(item, Qt::AnchorRight);
 
@@ -2081,20 +2090,17 @@ void QGraphicsAnchorLayoutPrivate::setItemsGeometries(const QRectF &geom)
                 newGeom.setLeft(right - secondH->distance);
                 newGeom.setRight(right - firstH->distance);
             }
-        } else {
-            newGeom.setLeft(0);
-            newGeom.setRight(itemPreferredSize.width());
         }
 
-        if (m_nonFloatItems[Vertical].contains(item)) {
+        if (m_floatItems[Vertical].contains(item)) {
+            newGeom.setTop(0);
+            newGeom.setBottom(itemPreferredSize.height());
+        } else {
             firstV = internalVertex(item, Qt::AnchorTop);
             secondV = internalVertex(item, Qt::AnchorBottom);
 
             newGeom.setTop(top + firstV->distance);
             newGeom.setBottom(top + secondV->distance);
-        } else {
-            newGeom.setTop(0);
-            newGeom.setBottom(itemPreferredSize.height());
         }
 
         item->setGeometry(newGeom);
@@ -2554,8 +2560,7 @@ bool QGraphicsAnchorLayoutPrivate::hasConflicts() const
     QGraphicsAnchorLayoutPrivate *that = const_cast<QGraphicsAnchorLayoutPrivate*>(this);
     that->calculateGraphs();
 
-    bool floatConflict = (m_nonFloatItems[0].size() < items.size())
-                         || (m_nonFloatItems[1].size() < items.size());
+    bool floatConflict = !m_floatItems[0].isEmpty() || !m_floatItems[1].isEmpty();
 
     return graphHasConflicts[0] || graphHasConflicts[1] || floatConflict;
 }
diff --git a/src/gui/graphicsview/qgraphicsanchorlayout_p.h b/src/gui/graphicsview/qgraphicsanchorlayout_p.h
index 24b25de..9ac0e19 100644
--- a/src/gui/graphicsview/qgraphicsanchorlayout_p.h
+++ b/src/gui/graphicsview/qgraphicsanchorlayout_p.h
@@ -443,8 +443,8 @@ public:
     void constraintsFromPaths(Orientation orientation);
     QList<QSimplexConstraint *> constraintsFromSizeHints(const QList<AnchorData *> &anchors);
     QList<QList<QSimplexConstraint *> > getGraphParts(Orientation orientation);
-    void identifyNonFloatItems(QSet<AnchorData *> visited, Orientation orientation);
-    void identifyNonFloatItems_helper(const AnchorData *ad, Orientation orientation);
+    void identifyFloatItems(const QSet<AnchorData *> &visited, Orientation orientation);
+    void identifyNonFloatItems_helper(const AnchorData *ad, QSet<QGraphicsLayoutItem *> *nonFloatingItemsIdentifiedSoFar);
 
     inline AnchorVertex *internalVertex(const QPair<QGraphicsLayoutItem*, Qt::AnchorPoint> &itemEdge) const
     {
@@ -511,7 +511,7 @@ public:
     // ###
     bool graphSimplified[2];
     bool graphHasConflicts[2];
-    QSet<QGraphicsLayoutItem *> m_nonFloatItems[2];
+    QSet<QGraphicsLayoutItem *> m_floatItems[2];
 
     uint calculateGraphCacheDirty : 1;
 };
diff --git a/src/gui/itemviews/qheaderview.cpp b/src/gui/itemviews/qheaderview.cpp
index fc9820f..a754579 100644
--- a/src/gui/itemviews/qheaderview.cpp
+++ b/src/gui/itemviews/qheaderview.cpp
@@ -524,8 +524,10 @@ QSize QHeaderView::sizeHint() const
     Q_D(const QHeaderView);
     if (d->cachedSizeHint.isValid())
         return d->cachedSizeHint;
-    d->cachedSizeHint = QSize(0, 0); //reinitialize the cached size hint
+    int width = 0;
+    int height = 0;
     const int sectionCount = count();
+    d->executePostedLayout();
 
     // get size hint for the first n sections
     int i = 0;
diff --git a/src/gui/kernel/qapplication_mac.mm b/src/gui/kernel/qapplication_mac.mm
index a95ae9d..f9c8aa3 100644
--- a/src/gui/kernel/qapplication_mac.mm
+++ b/src/gui/kernel/qapplication_mac.mm
@@ -1708,12 +1708,30 @@ QApplicationPrivate::globalEventProcessor(EventHandlerCallRef er, EventRef event
                         sizeof(axis), 0, &axis);
 
                 // The 'new' event has acceleration applied by the OS, while the old (on
-                // Carbon only), has not. So we introduce acceleration here to be consistent:
-                int scrollFactor = 120 * qMin(5, qAbs(mdelt));
+                // Carbon only), has not. So we introduce acceleration here to be consistent.
+                // The acceleration is trying to respect both pixel based and line scrolling,
+                // which turns out to be rather difficult.
+                int linesToScroll = mdelt > 0 ? 1 : -1;
+                static QTime t;
+                int elapsed = t.elapsed();
+                t.restart();
+                if (elapsed < 20)
+                    linesToScroll *= 120;
+                else if (elapsed < 30)
+                    linesToScroll *= 60;
+                else if (elapsed < 50)
+                    linesToScroll *= 30;
+                else if (elapsed < 100)
+                    linesToScroll *= 6;
+                else if (elapsed < 200)
+                    linesToScroll *= 3;
+                else if (elapsed < 300)
+                    linesToScroll *= 2;
+
                 if (axis == kEventMouseWheelAxisX)
-                    wheel_deltaX = mdelt * scrollFactor;
+                    wheel_deltaX = linesToScroll * 120;
                 else
-                    wheel_deltaY = mdelt * scrollFactor;
+                    wheel_deltaY = linesToScroll * 120;
             }
         }
 
diff --git a/src/gui/kernel/qkeymapper_win.cpp b/src/gui/kernel/qkeymapper_win.cpp
index 10958f3..be207df 100644
--- a/src/gui/kernel/qkeymapper_win.cpp
+++ b/src/gui/kernel/qkeymapper_win.cpp
@@ -905,8 +905,8 @@ bool QKeyMapperPrivate::translateKeyEvent(QWidget *widget, const MSG &msg, bool
         if(msg.wParam == VK_PROCESSKEY)
             return true;
 
-        // Ignore invalid virtual keycode (see bug 127424)
-        if (msg.wParam == 0xFF)
+        // Ignore invalid virtual keycodes (see bugs 127424, QTBUG-3630)
+        if (msg.wParam == 0 || msg.wParam == 0xFF)
             return true;
 
         // Translate VK_* (native) -> Key_* (Qt) keys
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 4cbf762..56602f7 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -901,9 +901,8 @@ void QWidget::setAutoFillBackground(bool enabled)
     \sa QEvent, QPainter, QGridLayout, QBoxLayout
 
     \section1 Softkeys
-    \since 4.6
 
-    Softkeys are usually physical keys on a device that have a corresponding label or
+    Since Qt 4.6, Softkeys are usually physical keys on a device that have a corresponding label or
     other visual representation on the screen that is generally located next to its
     physical counterpart. They are most often found on mobile phone platforms. In
     modern touch based user interfaces it is also possible to have softkeys that do
diff --git a/src/gui/kernel/qwidget_s60.cpp b/src/gui/kernel/qwidget_s60.cpp
index 3328cee..b0d405a 100644
--- a/src/gui/kernel/qwidget_s60.cpp
+++ b/src/gui/kernel/qwidget_s60.cpp
@@ -434,7 +434,7 @@ void QWidgetPrivate::create_sys(WId window, bool /* initializeWindow */, bool de
 void QWidgetPrivate::show_sys()
 {
     Q_Q(QWidget);
-    
+
     if (q->testAttribute(Qt::WA_OutsideWSRange))
         return;
 
@@ -490,7 +490,12 @@ void QWidgetPrivate::hide_sys()
     QSymbianControl *id = static_cast<QSymbianControl *>(q->internalWinId());
 
     if (id) {
-        if(id->IsFocused()) // Avoid unnecessary calls to FocusChanged()
+        //Incorrect optimisation - for popup windows, Qt's focus is moved before
+        //hide_sys is called, resulting in the popup window keeping its elevated
+        //position in the CONE control stack.
+        //This can result in keyboard focus being in an invisible widget in some
+        //conditions - e.g. QTBUG-4733
+        //if(id->IsFocused()) // Avoid unnecessary calls to FocusChanged()
             id->setFocusSafely(false);
         id->MakeVisible(false);
         if (QWidgetBackingStore *bs = maybeBackingStore())
@@ -1253,7 +1258,7 @@ void QWidget::grabMouse()
         WId id = effectiveWinId();
         id->SetPointerCapture(true);
         QWidgetPrivate::mouseGrabber = this;
-        
+
 #ifndef QT_NO_CURSOR
         QApplication::setOverrideCursor(cursor());
 #endif
diff --git a/src/gui/painting/qpen.cpp b/src/gui/painting/qpen.cpp
index a050cb2..41efc80 100644
--- a/src/gui/painting/qpen.cpp
+++ b/src/gui/painting/qpen.cpp
@@ -411,6 +411,8 @@ Qt::PenStyle QPen::style() const
     pattern using the setDashPattern() function which implicitly
     converts the style of the pen to Qt::CustomDashLine.
 
+    \note This function resets the dash offset to zero.
+
     \sa style(), {QPen#Pen Style}{Pen Style}
 */
 
@@ -420,7 +422,9 @@ void QPen::setStyle(Qt::PenStyle s)
         return;
     detach();
     d->style = s;
-    static_cast<QPenData *>(d)->dashPattern.clear();
+    QPenData *dd = static_cast<QPenData *>(d);
+    dd->dashPattern.clear();
+    dd->dashOffset = 0;
 }
 
 /*!
@@ -538,8 +542,12 @@ void QPen::setDashOffset(qreal offset)
     if (qFuzzyCompare(offset, static_cast<QPenData *>(d)->dashOffset))
         return;
     detach();
-    static_cast<QPenData *>(d)->dashOffset = offset;
-    d->style = Qt::CustomDashLine;
+    QPenData *dd = static_cast<QPenData *>(d);
+    dd->dashOffset = offset;
+    if (d->style != Qt::CustomDashLine) {
+        dd->dashPattern = dashPattern();
+        d->style = Qt::CustomDashLine;
+    }
 }
 
 /*!
diff --git a/src/gui/styles/qplastiquestyle.cpp b/src/gui/styles/qplastiquestyle.cpp
index 5052755..ce2109a 100644
--- a/src/gui/styles/qplastiquestyle.cpp
+++ b/src/gui/styles/qplastiquestyle.cpp
@@ -3309,7 +3309,7 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
 
             // Draw the text centered
             QFont font = painter->font();
-            font.setPointSize(font.pointSize() - 1);
+            font.setPointSize(QFontInfo(font).pointSize() - 1);
             painter->setFont(font);
             painter->setPen(dockWidget->palette.windowText().color());
             painter->drawText(titleRect,
diff --git a/src/gui/styles/qs60style.cpp b/src/gui/styles/qs60style.cpp
index 6bdb79e..4fa1d03 100644
--- a/src/gui/styles/qs60style.cpp
+++ b/src/gui/styles/qs60style.cpp
@@ -706,11 +706,10 @@ void QS60StylePrivate::setThemePalette(QPalette *palette) const
     palette->setColor(QPalette::AlternateBase, Qt::transparent);
     palette->setBrush(QPalette::Base, Qt::transparent);
     // set button and tooltipbase based on pixel colors
-// After natitive pixmap support, colorFromFrameGraphics caused reproducable crashes on some setups.
-//    const QColor buttonColor = colorFromFrameGraphics(SF_ButtonNormal);
-//    palette->setColor(QPalette::Button, buttonColor);
-//    const QColor toolTipColor = colorFromFrameGraphics(SF_ToolTip);
-//    palette->setColor(QPalette::ToolTipBase, toolTipColor);
+    const QColor buttonColor = colorFromFrameGraphics(SF_ButtonNormal);
+    palette->setColor(QPalette::Button, buttonColor);
+    const QColor toolTipColor = colorFromFrameGraphics(SF_ToolTip);
+    palette->setColor(QPalette::ToolTipBase, toolTipColor);
     palette->setColor(QPalette::Light, palette->color(QPalette::Button).lighter());
     palette->setColor(QPalette::Dark, palette->color(QPalette::Button).darker());
     palette->setColor(QPalette::Midlight, palette->color(QPalette::Button).lighter(125));
@@ -1865,7 +1864,7 @@ void QS60Style::drawControl(ControlElement element, const QStyleOption *option,
             painter->save();
             painter->setRenderHint(QPainter::Antialiasing);
             painter->setOpacity(opacity);
-            painter->setPen(QPen(option->palette.color(QPalette::Highlight), penWidth));
+            painter->setPen(QPen(option->palette.color(QPalette::Text), penWidth));
             painter->drawRoundedRect(adjustedRect, roundRectRadius, roundRectRadius);
             painter->restore();
         }
diff --git a/src/gui/text/qfontengine_mac.mm b/src/gui/text/qfontengine_mac.mm
index 40db7b4..758d8af 100644
--- a/src/gui/text/qfontengine_mac.mm
+++ b/src/gui/text/qfontengine_mac.mm
@@ -138,9 +138,10 @@ QCoreTextFontEngineMulti::QCoreTextFontEngineMulti(const ATSFontFamilyRef &, con
 
     QCFString name;
     ATSFontGetName(atsFontRef, kATSOptionFlagsDefault, &name);
-    QCFType<CTFontDescriptorRef> descriptor = CTFontDescriptorCreateWithNameAndSize(name, fontDef.pointSize);
-    QCFType<CTFontRef> baseFont = CTFontCreateWithFontDescriptor(descriptor, fontDef.pointSize, 0);
-    ctfont = CTFontCreateCopyWithSymbolicTraits(baseFont, fontDef.pointSize, 0, symbolicTraits, symbolicTraits);
+
+    QCFType<CTFontDescriptorRef> descriptor = CTFontDescriptorCreateWithNameAndSize(name, fontDef.pixelSize);
+    QCFType<CTFontRef> baseFont = CTFontCreateWithFontDescriptor(descriptor, fontDef.pixelSize, 0);
+    ctfont = CTFontCreateCopyWithSymbolicTraits(baseFont, fontDef.pixelSize, 0, symbolicTraits, symbolicTraits);
 
     // CTFontCreateCopyWithSymbolicTraits returns NULL if we ask for a trait that does
     // not exist for the given font. (for example italic)
diff --git a/src/gui/widgets/qabstractslider.cpp b/src/gui/widgets/qabstractslider.cpp
index 19a8b63..588a48e 100644
--- a/src/gui/widgets/qabstractslider.cpp
+++ b/src/gui/widgets/qabstractslider.cpp
@@ -715,8 +715,7 @@ void QAbstractSlider::wheelEvent(QWheelEvent * e)
 #else
         stepsToScroll = int(d->offset_accumulated) * QApplication::wheelScrollLines() * d->singleStep;
 #endif
-        if (qAbs(stepsToScroll) > d->pageStep)
-            stepsToScroll = currentOffset > 0 ? d->pageStep : -d->pageStep;
+        stepsToScroll = qBound(-d->pageStep, stepsToScroll, d->pageStep);
     }
 
     if (d->invertedControls)
diff --git a/src/network/access/qnetworkrequest.cpp b/src/network/access/qnetworkrequest.cpp
index cde9858..33bc57b 100644
--- a/src/network/access/qnetworkrequest.cpp
+++ b/src/network/access/qnetworkrequest.cpp
@@ -481,6 +481,36 @@ void QNetworkRequest::setSslConfiguration(const QSslConfiguration &config)
 }
 #endif
 
+/*!
+    \since 4.6
+
+    Allows setting a reference to the \a object initiating
+    the request.
+
+    For example QtWebKit sets the originating object to the
+    QWebFrame that initiated the request.
+
+    \sa originatingObject()
+*/
+void QNetworkRequest::setOriginatingObject(QObject *object)
+{
+    d->originatingObject = object;
+}
+
+/*!
+    \since 4.6
+
+    Returns a reference to the object that initiated this
+    network request; returns 0 if not set or the object has
+    been destroyed.
+
+    \sa setOriginatingObject()
+*/
+QObject *QNetworkRequest::originatingObject() const
+{
+    return d->originatingObject.data();
+}
+
 static QByteArray headerName(QNetworkRequest::KnownHeaders header)
 {
     switch (header) {
diff --git a/src/network/access/qnetworkrequest.h b/src/network/access/qnetworkrequest.h
index 7b15237..62c6dda 100644
--- a/src/network/access/qnetworkrequest.h
+++ b/src/network/access/qnetworkrequest.h
@@ -120,6 +120,9 @@ public:
     void setSslConfiguration(const QSslConfiguration &configuration);
 #endif
 
+    void setOriginatingObject(QObject *object);
+    QObject *originatingObject() const;
+
 private:
     QSharedDataPointer<QNetworkRequestPrivate> d;
     friend class QNetworkRequestPrivate;
diff --git a/src/network/access/qnetworkrequest_p.h b/src/network/access/qnetworkrequest_p.h
index 22b239f..9b3632f 100644
--- a/src/network/access/qnetworkrequest_p.h
+++ b/src/network/access/qnetworkrequest_p.h
@@ -58,6 +58,7 @@
 #include "QtCore/qlist.h"
 #include "QtCore/qhash.h"
 #include "QtCore/qshareddata.h"
+#include "QtCore/qsharedpointer.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -73,6 +74,7 @@ public:
     RawHeadersList rawHeaders;
     CookedHeadersMap cookedHeaders;
     AttributesMap attributes;
+    QWeakPointer<QObject> originatingObject;
 
     RawHeadersList::ConstIterator findRawHeader(const QByteArray &key) const;
     QList<QByteArray> rawHeadersKeys() const;
diff --git a/src/network/kernel/qhostinfo_unix.cpp b/src/network/kernel/qhostinfo_unix.cpp
index b4ac3d2..7e6e522 100644
--- a/src/network/kernel/qhostinfo_unix.cpp
+++ b/src/network/kernel/qhostinfo_unix.cpp
@@ -173,38 +173,28 @@ QHostInfo QHostInfoAgent::fromName(const QString &hostName)
 #endif
 
         char hbuf[NI_MAXHOST];
-        if (!sa || getnameinfo(sa, saSize, hbuf, sizeof(hbuf), 0, 0, 0) != 0) {
-            results.setError(QHostInfo::HostNotFound);
-            results.setErrorString(tr("Host not found"));
-            return results;
-        }
-        results.setHostName(QString::fromLatin1(hbuf));
+        if (sa && getnameinfo(sa, saSize, hbuf, sizeof(hbuf), 0, 0, 0) == 0)
+            results.setHostName(QString::fromLatin1(hbuf));
 #else
         in_addr_t inetaddr = qt_safe_inet_addr(hostName.toLatin1().constData());
         struct hostent *ent = gethostbyaddr((const char *)&inetaddr, sizeof(inetaddr), AF_INET);
-        if (!ent) {
-            results.setError(QHostInfo::HostNotFound);
-            results.setErrorString(tr("Host not found"));
-            return results;
-        }
-        results.setHostName(QString::fromLatin1(ent->h_name));
+        if (ent)
+            results.setHostName(QString::fromLatin1(ent->h_name));
 #endif
+
+        if (results.hostName().isEmpty())
+            results.setHostName(address.toString());
+        results.setAddresses(QList<QHostAddress>() << address);
+        return results;
     }
 
     // IDN support
-    QByteArray aceHostname;
-    if (results.hostName().isEmpty()) {
-        // it's a hostname resolution
-        aceHostname = QUrl::toAce(hostName);
-        results.setHostName(hostName);
-        if (aceHostname.isEmpty()) {
-            results.setError(QHostInfo::HostNotFound);
-            results.setErrorString(hostName.isEmpty() ? QObject::tr("No host name given") : QObject::tr("Invalid hostname"));
-            return results;
-        }
-    } else {
-        // it's an IP reverse resolution
-        aceHostname = results.hostName().toLatin1();
+    QByteArray aceHostname = QUrl::toAce(hostName);
+    results.setHostName(hostName);
+    if (aceHostname.isEmpty()) {
+        results.setError(QHostInfo::HostNotFound);
+        results.setErrorString(hostName.isEmpty() ? QObject::tr("No host name given") : QObject::tr("Invalid hostname"));
+        return results;
     }
 
 #if !defined (QT_NO_GETADDRINFO)
diff --git a/src/network/kernel/qhostinfo_win.cpp b/src/network/kernel/qhostinfo_win.cpp
index d9d7234..720aaa5 100644
--- a/src/network/kernel/qhostinfo_win.cpp
+++ b/src/network/kernel/qhostinfo_win.cpp
@@ -160,38 +160,28 @@ QHostInfo QHostInfoAgent::fromName(const QString &hostName)
             }
 
             char hbuf[NI_MAXHOST];
-            if (local_getnameinfo(sa, saSize, hbuf, sizeof(hbuf), 0, 0, 0) != 0) {
-                results.setError(QHostInfo::HostNotFound);
-                results.setErrorString(tr("Host not found"));
-                return results;
-            }
-            results.setHostName(QString::fromLatin1(hbuf));
+            if (local_getnameinfo(sa, saSize, hbuf, sizeof(hbuf), 0, 0, 0) == 0)
+                results.setHostName(QString::fromLatin1(hbuf));
         } else {
             unsigned long addr = inet_addr(hostName.toLatin1().constData());
             struct hostent *ent = gethostbyaddr((const char*)&addr, sizeof(addr), AF_INET);
-            if (!ent) {
-                results.setError(QHostInfo::HostNotFound);
-                results.setErrorString(tr("Host not found"));
-                return results;
-            }
-            results.setHostName(QString::fromLatin1(ent->h_name));
+            if (ent)
+                results.setHostName(QString::fromLatin1(ent->h_name));
         }
+
+        if (results.hostName().isEmpty())
+            results.setHostName(address.toString());
+        results.setAddresses(QList<QHostAddress>() << address);
+        return results;
     }
 
     // IDN support
-    QByteArray aceHostname;
-    if (results.hostName().isEmpty()) {
-        // it's a hostname resolution
-        aceHostname = QUrl::toAce(hostName);
-        results.setHostName(hostName);
-        if (aceHostname.isEmpty()) {
-            results.setError(QHostInfo::HostNotFound);
-            results.setErrorString(hostName.isEmpty() ? tr("No host name given") : tr("Invalid hostname"));
-            return results;
-        }
-    } else {
-        // it's an IP reverse resolution
-        aceHostname = results.hostName().toLatin1();
+    QByteArray aceHostname = QUrl::toAce(hostName);
+    results.setHostName(hostName);
+    if (aceHostname.isEmpty()) {
+        results.setError(QHostInfo::HostNotFound);
+        results.setErrorString(hostName.isEmpty() ? tr("No host name given") : tr("Invalid hostname"));
+        return results;
     }
 
     if (local_getaddrinfo && local_freeaddrinfo) {
diff --git a/src/opengl/qgl_egl.cpp b/src/opengl/qgl_egl.cpp
index fa876c7..fbf0349 100644
--- a/src/opengl/qgl_egl.cpp
+++ b/src/opengl/qgl_egl.cpp
@@ -75,7 +75,7 @@ void qt_egl_set_format(QEglProperties& props, int deviceType, const QGLFormat& f
         props.setValue(EGL_STENCIL_SIZE, f.stencilBufferSize() == -1 ? 1 : f.stencilBufferSize());
     if (f.sampleBuffers()) {
         props.setValue(EGL_SAMPLE_BUFFERS, 1);
-        props.setValue(EGL_SAMPLES, f.samples());
+        props.setValue(EGL_SAMPLES, f.samples() == -1 ? 1 : f.samples());
     } else {
         props.setValue(EGL_SAMPLE_BUFFERS, 0);
     }
diff --git a/src/opengl/qglframebufferobject.cpp b/src/opengl/qglframebufferobject.cpp
index 3e54b35..5585208 100644
--- a/src/opengl/qglframebufferobject.cpp
+++ b/src/opengl/qglframebufferobject.cpp
@@ -988,7 +988,7 @@ QImage QGLFramebufferObject::toImage() const
     bool wasBound = isBound();
     if (!wasBound)
         const_cast<QGLFramebufferObject *>(this)->bind();
-    QImage image = qt_gl_read_framebuffer(d->size, format().textureTarget() != GL_RGB, true);
+    QImage image = qt_gl_read_framebuffer(d->size, format().internalTextureFormat() != GL_RGB, true);
     if (!wasBound)
         const_cast<QGLFramebufferObject *>(this)->release();
 
diff --git a/src/opengl/qglpixelbuffer_egl.cpp b/src/opengl/qglpixelbuffer_egl.cpp
index 4cba1bb..744fbd4 100644
--- a/src/opengl/qglpixelbuffer_egl.cpp
+++ b/src/opengl/qglpixelbuffer_egl.cpp
@@ -151,7 +151,7 @@ bool QGLPixelBufferPrivate::init(const QSize &size, const QGLFormat &f, QGLWidge
 
 bool QGLPixelBufferPrivate::cleanup()
 {
-    eglDestroySurface(QEglContext::defaultDisplay(0), pbuf);
+    // No need to destroy "pbuf" here - it is done in QGLContext::reset().
     return true;
 }
 
@@ -202,13 +202,20 @@ GLuint QGLPixelBuffer::generateDynamicTexture() const
 bool QGLPixelBuffer::hasOpenGLPbuffers()
 {
     // See if we have at least 1 configuration that matches the default format.
-    QEglContext ctx;
-    if (!ctx.openDisplay(0))
+    EGLDisplay dpy = QEglContext::defaultDisplay(0);
+    if (dpy == EGL_NO_DISPLAY)
         return false;
     QEglProperties configProps;
     qt_egl_set_format(configProps, QInternal::Pbuffer, QGLFormat::defaultFormat());
     configProps.setRenderableType(QEgl::OpenGL);
-    return ctx.chooseConfig(configProps);
+    do {
+        EGLConfig cfg = 0;
+        EGLint matching = 0;
+        if (eglChooseConfig(dpy, configProps.properties(),
+                            &cfg, 1, &matching) && matching > 0)
+            return true;
+    } while (configProps.reduceConfiguration());
+    return false;
 }
 
 QT_END_NAMESPACE
diff --git a/src/s60installs/eabi/phononu.def b/src/s60installs/eabi/phononu.def
index d407ba4..d70942c 100644
--- a/src/s60installs/eabi/phononu.def
+++ b/src/s60installs/eabi/phononu.def
@@ -495,11 +495,11 @@ EXPORTS
 	_ZTIN6Phonon19AbstractVideoOutputE @ 494 NONAME
 	_ZTIN6Phonon19BackendCapabilities8NotifierE @ 495 NONAME ABSENT
 	_ZTIN6Phonon22MediaControllerPrivateE @ 496 NONAME ABSENT
-	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE0EEE @ 497 NONAME ABSENT
-	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE1EEE @ 498 NONAME ABSENT
-	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE2EEE @ 499 NONAME ABSENT
-	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE3EEE @ 500 NONAME ABSENT
-	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE4EEE @ 501 NONAME ABSENT
+	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE0EEE @ 497 NONAME
+	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE1EEE @ 498 NONAME
+	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE2EEE @ 499 NONAME
+	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE3EEE @ 500 NONAME
+	_ZTIN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE4EEE @ 501 NONAME
 	_ZTIN6Phonon24VolumeFaderEffectPrivateE @ 502 NONAME ABSENT
 	_ZTIN6Phonon26AbstractAudioOutputPrivateE @ 503 NONAME ABSENT
 	_ZTIN6Phonon26AbstractMediaStreamPrivateE @ 504 NONAME
@@ -532,11 +532,11 @@ EXPORTS
 	_ZTVN6Phonon19AbstractVideoOutputE @ 531 NONAME
 	_ZTVN6Phonon19BackendCapabilities8NotifierE @ 532 NONAME ABSENT
 	_ZTVN6Phonon22MediaControllerPrivateE @ 533 NONAME ABSENT
-	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE0EEE @ 534 NONAME ABSENT
-	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE1EEE @ 535 NONAME ABSENT
-	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE2EEE @ 536 NONAME ABSENT
-	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE3EEE @ 537 NONAME ABSENT
-	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE4EEE @ 538 NONAME ABSENT
+	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE0EEE @ 534 NONAME
+	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE1EEE @ 535 NONAME
+	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE2EEE @ 536 NONAME
+	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE3EEE @ 537 NONAME
+	_ZTVN6Phonon22ObjectDescriptionModelILNS_21ObjectDescriptionTypeE4EEE @ 538 NONAME
 	_ZTVN6Phonon24VolumeFaderEffectPrivateE @ 539 NONAME ABSENT
 	_ZTVN6Phonon26AbstractAudioOutputPrivateE @ 540 NONAME ABSENT
 	_ZTVN6Phonon26AbstractMediaStreamPrivateE @ 541 NONAME