Merge branch 'master' of scm.dev.nokia.troll.no:qt/mobility-staging into master-integration

* 'master' of scm.dev.nokia.troll.no:qt/mobility-staging: (165 commits)
  Add 'We mean it.' header.
  Use provided typedef for QNetworkConfigurationPrivatePointer.
  Fix public includes.
  Document networkSessionOnline() signal and mark as internal.
  Tag new classes as since 4.7.
  Fix documentation.
  Remove debug.
  Update copyright year to 2010.
  We don't need to migrate cached replies.
  Fix after reworking to use signals/slots.
  Remove debug.
  Rename and remove unused private slots.
  Add comments to private state enums.
  Revert "(ODBC) Use wchar_t instead of assuming 2 bytes."
  Move check for range header support to before deleting backend.
  Don't try to migrate finished or aborted requests.
  Clarify TemporaryNetworkFailureError docs.
  Remove functions used for testing.
  Connect signals between QNAM and QNetworkReplyImpl.
  Fix networkAccessEnabled implementation.
  ...

33 files changed, 226 insertions, 91 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index b4e19d1..39c41c4 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -1392,7 +1392,8 @@ QGraphicsItem::~QGraphicsItem()
     }
     delete d_ptr->transformData;
 
-    qt_dataStore()->data.remove(this);
+    if (QGraphicsItemCustomDataStore *dataStore = qt_dataStore())
+        dataStore->data.remove(this);
 }
 
 /*!
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index ac1d303..bf6eb8d 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -104,6 +104,15 @@ QT_BEGIN_NAMESPACE
 
 static QBasicAtomicInt serialNumCounter = Q_BASIC_ATOMIC_INITIALIZER(1);
 
+static void qt_cleanup_icon_cache();
+typedef QCache<QString, QIcon> IconCache;
+Q_GLOBAL_STATIC_WITH_INITIALIZER(IconCache, qtIconCache, qAddPostRoutine(qt_cleanup_icon_cache))
+
+static void qt_cleanup_icon_cache()
+{
+    qtIconCache()->clear();
+}
+
 QIconPrivate::QIconPrivate()
     : engine(0), ref(1),
     serialNum(serialNumCounter.fetchAndAddRelaxed(1)),
@@ -963,15 +972,13 @@ QString QIcon::themeName()
 */
 QIcon QIcon::fromTheme(const QString &name, const QIcon &fallback)
 {
-    static QCache <QString, QIcon> iconCache;
-
     QIcon icon;
 
-    if (iconCache.contains(name)) {
-        icon = *iconCache.object(name);
+    if (qtIconCache()->contains(name)) {
+        icon = *qtIconCache()->object(name);
     } else {
         QIcon *cachedIcon  = new QIcon(new QIconLoaderEngine(name));
-        iconCache.insert(name, cachedIcon);
+        qtIconCache()->insert(name, cachedIcon);
         icon = *cachedIcon;
     }
 
diff --git a/src/gui/image/qimagereader.cpp b/src/gui/image/qimagereader.cpp
index c9e015c..9320cfc 100644
--- a/src/gui/image/qimagereader.cpp
+++ b/src/gui/image/qimagereader.cpp
@@ -263,25 +263,37 @@ static QImageIOHandler *createReadHandlerHelper(QIODevice *device,
             device->seek(pos);
     }
 
-    if (!handler && !testFormat.isEmpty() && autoDetectImageFormat && !ignoresFormatAndExtension) {
+    if (!handler && !testFormat.isEmpty() && !ignoresFormatAndExtension) {
         // check if any plugin supports the format (they are not allowed to
         // read from the device yet).
         const qint64 pos = device ? device->pos() : 0;
-        for (int i = 0; i < keys.size(); ++i) {
-            if (i != suffixPluginIndex) {
-                QImageIOPlugin *plugin = qobject_cast<QImageIOPlugin *>(l->instance(keys.at(i)));
-                if (plugin && plugin->capabilities(device, testFormat) & QImageIOPlugin::CanRead) {
+
+        if (autoDetectImageFormat) {
+            for (int i = 0; i < keys.size(); ++i) {
+                if (i != suffixPluginIndex) {
+                    QImageIOPlugin *plugin = qobject_cast<QImageIOPlugin *>(l->instance(keys.at(i)));
+                    if (plugin && plugin->capabilities(device, testFormat) & QImageIOPlugin::CanRead) {
 #ifdef QIMAGEREADER_DEBUG
-                    qDebug() << "QImageReader::createReadHandler: the" << keys.at(i) << "plugin can read this format";
+                        qDebug() << "QImageReader::createReadHandler: the" << keys.at(i) << "plugin can read this format";
 #endif
-                    handler = plugin->create(device, testFormat);
-                    break;
+                        handler = plugin->create(device, testFormat);
+                        break;
+                    }
                 }
             }
+        } else {
+            QImageIOPlugin *plugin = qobject_cast<QImageIOPlugin *>(l->instance(QLatin1String(testFormat)));
+            if (plugin && plugin->capabilities(device, testFormat) & QImageIOPlugin::CanRead) {
+#ifdef QIMAGEREADER_DEBUG
+                qDebug() << "QImageReader::createReadHandler: the" << testFormat << "plugin can read this format";
+#endif
+                handler = plugin->create(device, testFormat);
+            }
         }
         if (device && !device->isSequential())
             device->seek(pos);
     }
+
 #endif // QT_NO_LIBRARY
 
     // if we don't have a handler yet, check if we have built-in support for
diff --git a/src/gui/image/qpixmapfilter.cpp b/src/gui/image/qpixmapfilter.cpp
index 37a6a18..2792e45 100644
--- a/src/gui/image/qpixmapfilter.cpp
+++ b/src/gui/image/qpixmapfilter.cpp
@@ -422,6 +422,9 @@ void QPixmapConvolutionFilter::draw(QPainter *painter, const QPointF &p, const Q
     if(d->kernelWidth<=0 || d->kernelHeight <= 0)
         return;
 
+    if (src.isNull())
+        return;
+
     QPixmapFilter *filter = painter->paintEngine() && painter->paintEngine()->isExtended() ?
         static_cast<QPaintEngineEx *>(painter->paintEngine())->pixmapFilter(type(), this) : 0;
     QPixmapConvolutionFilter *convolutionFilter = static_cast<QPixmapConvolutionFilter*>(filter);
@@ -710,7 +713,8 @@ void expblur(QImage &img, qreal radius, bool improvedQuality = false, int transp
         radius *= qreal(0.5);
 
     Q_ASSERT(img.format() == QImage::Format_ARGB32_Premultiplied
-             || img.format() == QImage::Format_RGB32);
+             || img.format() == QImage::Format_RGB32
+             || img.format() == QImage::Format_Indexed8);
 
     // choose the alpha such that pixels at radius distance from a fully
     // saturated pixel will have an alpha component of no greater than
@@ -902,6 +906,9 @@ void QPixmapBlurFilter::draw(QPainter *painter, const QPointF &p, const QPixmap
     if (!painter->isActive())
         return;
 
+    if (src.isNull())
+        return;
+
     QRectF srcRect = rect;
     if (srcRect.isNull())
         srcRect = src.rect();
@@ -1082,6 +1089,10 @@ void QPixmapColorizeFilter::setStrength(qreal strength)
 void QPixmapColorizeFilter::draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect) const
 {
     Q_D(const QPixmapColorizeFilter);
+
+    if (src.isNull())
+        return;
+
     QPixmapFilter *filter = painter->paintEngine() && painter->paintEngine()->isExtended() ?
         static_cast<QPaintEngineEx *>(painter->paintEngine())->pixmapFilter(type(), this) : 0;
     QPixmapColorizeFilter *colorizeFilter = static_cast<QPixmapColorizeFilter*>(filter);
@@ -1312,6 +1323,10 @@ void QPixmapDropShadowFilter::draw(QPainter *p,
                                    const QRectF &src) const
 {
     Q_D(const QPixmapDropShadowFilter);
+
+    if (px.isNull())
+        return;
+
     QPixmapFilter *filter = p->paintEngine() && p->paintEngine()->isExtended() ?
         static_cast<QPaintEngineEx *>(p->paintEngine())->pixmapFilter(type(), this) : 0;
     QPixmapDropShadowFilter *dropShadowFilter = static_cast<QPixmapDropShadowFilter*>(filter);
diff --git a/src/gui/itemviews/qlistview.cpp b/src/gui/itemviews/qlistview.cpp
index 19b1e8c..b2def39 100644
--- a/src/gui/itemviews/qlistview.cpp
+++ b/src/gui/itemviews/qlistview.cpp
@@ -2160,7 +2160,7 @@ void QListModeViewBase::scrollContentsBy(int dx, int dy, bool scrollElasticBand)
     } else {
         if (flowPositions.isEmpty())
             return;
-        const int max = flowPositions.count() - 1;
+        const int max = scrollValueMap.count() - 1;
         if (vertical && flow() == QListView::TopToBottom && dy != 0) {
             int currentValue = qBound(0, verticalValue, max);
             int previousValue = qBound(0, currentValue + dy, max);
diff --git a/src/gui/kernel/qapplication_mac.mm b/src/gui/kernel/qapplication_mac.mm
index 3fba833..25c98c5 100644
--- a/src/gui/kernel/qapplication_mac.mm
+++ b/src/gui/kernel/qapplication_mac.mm
@@ -2168,6 +2168,7 @@ QApplicationPrivate::globalEventProcessor(EventHandlerCallRef er, EventRef event
             }
 
             if (wheel_deltaX || wheel_deltaY) {
+#ifndef QT_NO_WHEELEVENT
                 if (wheel_deltaX) {
                     QWheelEvent qwe(plocal, p, wheel_deltaX, buttons, modifiers, Qt::Horizontal);
                     QApplication::sendSpontaneousEvent(widget, &qwe);
@@ -2190,6 +2191,7 @@ QApplicationPrivate::globalEventProcessor(EventHandlerCallRef er, EventRef event
                             handled_event = false;
                     }
                 }
+#endif // QT_NO_WHEELEVENT
             } else {
 #ifdef QMAC_SPEAK_TO_ME
                 const int speak_keys = Qt::AltModifier | Qt::ShiftModifier;
@@ -2764,6 +2766,7 @@ int QApplication::keyboardInputInterval()
     return QApplicationPrivate::keyboard_input_time;
 }
 
+#ifndef QT_NO_WHEELEVENT
 void QApplication::setWheelScrollLines(int n)
 {
     QApplicationPrivate::wheel_scroll_lines = n;
@@ -2773,6 +2776,7 @@ int QApplication::wheelScrollLines()
 {
     return QApplicationPrivate::wheel_scroll_lines;
 }
+#endif
 
 void QApplication::setEffectEnabled(Qt::UIEffect effect, bool enable)
 {
@@ -2935,9 +2939,11 @@ bool QApplicationPrivate::qt_mac_apply_settings()
                             QApplication::cursorFlashTime()).toInt();
         QApplication::setCursorFlashTime(num);
 
+#ifndef QT_NO_WHEELEVENT
         num = settings.value(QLatin1String("wheelScrollLines"),
                             QApplication::wheelScrollLines()).toInt();
         QApplication::setWheelScrollLines(num);
+#endif
 
         QString colorspec = settings.value(QLatin1String("colorSpec"),
                                             QVariant(QLatin1String("default"))).toString();
diff --git a/src/gui/kernel/qapplication_p.h b/src/gui/kernel/qapplication_p.h
index d19d86e..e0a6103 100644
--- a/src/gui/kernel/qapplication_p.h
+++ b/src/gui/kernel/qapplication_p.h
@@ -427,7 +427,9 @@ public:
     static int  cursor_flash_time;
     static int  mouse_double_click_time;
     static int  keyboard_input_time;
+#ifndef QT_NO_WHEELEVENT
     static int  wheel_scroll_lines;
+#endif
 
     static bool animate_ui;
     static bool animate_menu;
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index 87de602..3e2e6f6 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -809,12 +809,15 @@ TCoeInputCapabilities QSymbianControl::InputCapabilities() const
 void QSymbianControl::Draw(const TRect& controlRect) const
 {
     // Set flag to avoid calling DrawNow in window surface
-    QWExtra *extra = qwidget->d_func()->extraData();
-    if (extra && !extra->inExpose) {
-        extra->inExpose = true;
+    QWidget *window = qwidget->window();
+    Q_ASSERT(window);
+    QTLWExtra *topExtra = window->d_func()->maybeTopData();
+    Q_ASSERT(topExtra);
+    if (!topExtra->inExpose) {
+        topExtra->inExpose = true;
         QRect exposeRect = qt_TRect2QRect(controlRect);
         qwidget->d_func()->syncBackingStore(exposeRect);
-        extra->inExpose = false;
+        topExtra->inExpose = false;
     }
 
     QWindowSurface *surface = qwidget->windowSurface();
diff --git a/src/gui/kernel/qapplication_win.cpp b/src/gui/kernel/qapplication_win.cpp
index 3355272..0a4869b 100644
--- a/src/gui/kernel/qapplication_win.cpp
+++ b/src/gui/kernel/qapplication_win.cpp
@@ -928,7 +928,11 @@ const QString qt_reg_winclass(QWidget *w)        // register window class
     uint style;
     bool icon;
     QString cname;
-    if (flags & Qt::MSWindowsOwnDC) {
+    if (qt_widget_private(w)->isGLWidget) {
+        cname = QLatin1String("QGLWidget");
+        style = CS_DBLCLKS;
+        icon  = true;
+    } else if (flags & Qt::MSWindowsOwnDC) {
         cname = QLatin1String("QWidgetOwnDC");
         style = CS_DBLCLKS;
 #ifndef Q_WS_WINCE
@@ -1021,7 +1025,7 @@ const QString qt_reg_winclass(QWidget *w)        // register window class
     }
     wc.hCursor      = 0;
 #ifndef Q_WS_WINCE
-    wc.hbrBackground = (HBRUSH)GetSysColorBrush(COLOR_WINDOW);
+    wc.hbrBackground = qt_widget_private(w)->isGLWidget ? 0 : (HBRUSH)GetSysColorBrush(COLOR_WINDOW);
 #else
     wc.hbrBackground = 0;
 #endif
@@ -3616,13 +3620,19 @@ bool QETWidget::translatePaintEvent(const MSG &msg)
         return true;
 
     setAttribute(Qt::WA_PendingUpdate, false);
-    const QRegion dirtyInBackingStore(qt_dirtyRegion(this));
-    // Make sure the invalidated region contains the region we're about to repaint.
-    // BeginPaint will set the clip to the invalidated region and it is impossible
-    // to enlarge it afterwards (only shrink it). Using GetDCEx is not suffient
-    // as it may return an invalid context (especially on Windows Vista).
-    if (!dirtyInBackingStore.isEmpty())
-        InvalidateRgn(internalWinId(), dirtyInBackingStore.handle(), false);
+
+    if (d_func()->isGLWidget) {
+        if (d_func()->usesDoubleBufferedGLContext)
+            InvalidateRect(internalWinId(), 0, false);
+    } else {
+        const QRegion dirtyInBackingStore(qt_dirtyRegion(this));
+        // Make sure the invalidated region contains the region we're about to repaint.
+        // BeginPaint will set the clip to the invalidated region and it is impossible
+        // to enlarge it afterwards (only shrink it). Using GetDCEx is not suffient
+        // as it may return an invalid context (especially on Windows Vista).
+        if (!dirtyInBackingStore.isEmpty())
+            InvalidateRgn(internalWinId(), dirtyInBackingStore.handle(), false);
+    }
     PAINTSTRUCT ps;
     d_func()->hd = BeginPaint(internalWinId(), &ps);
 
diff --git a/src/gui/kernel/qapplication_x11.cpp b/src/gui/kernel/qapplication_x11.cpp
index 667db39..34865b5 100644
--- a/src/gui/kernel/qapplication_x11.cpp
+++ b/src/gui/kernel/qapplication_x11.cpp
@@ -949,10 +949,12 @@ bool QApplicationPrivate::x11_apply_settings()
                        QApplication::cursorFlashTime()).toInt();
     QApplication::setCursorFlashTime(num);
 
+#ifndef QT_NO_WHEELEVENT
     num =
         settings.value(QLatin1String("wheelScrollLines"),
                        QApplication::wheelScrollLines()).toInt();
     QApplication::setWheelScrollLines(num);
+#endif
 
     QString colorspec = settings.value(QLatin1String("colorSpec"),
                                        QVariant(QLatin1String("default"))).toString();
@@ -4406,8 +4408,10 @@ bool QETWidget::translateWheelEvent(int global_x, int global_y, int delta,
         QWidget* popup = qApp->activePopupWidget();
         if (popup && window() != popup)
             popup->close();
+#ifndef QT_NO_WHEELEVENT
         QWheelEvent e(pos, globalPos, delta, buttons, modifiers, orient);
         if (QApplication::sendSpontaneousEvent(widget, &e))
+#endif
             return true;
     }
 
@@ -4418,8 +4422,10 @@ bool QETWidget::translateWheelEvent(int global_x, int global_y, int delta,
         QWidget* popup = qApp->activePopupWidget();
         if (popup && widget != popup)
             popup->hide();
+#ifndef QT_NO_WHEELEVENT
         QWheelEvent e(pos, globalPos, delta, buttons, modifiers, orient);
         if (QApplication::sendSpontaneousEvent(widget, &e))
+#endif
             return true;
     }
     return false;
@@ -5318,6 +5324,7 @@ int QApplication::keyboardInputInterval()
     return QApplicationPrivate::keyboard_input_time;
 }
 
+#ifndef QT_NO_WHEELEVENT
 void QApplication::setWheelScrollLines(int n)
 {
     QApplicationPrivate::wheel_scroll_lines = n;
@@ -5327,6 +5334,7 @@ int QApplication::wheelScrollLines()
 {
     return QApplicationPrivate::wheel_scroll_lines;
 }
+#endif
 
 void QApplication::setEffectEnabled(Qt::UIEffect effect, bool enable)
 {
diff --git a/src/gui/kernel/qclipboard_mac.cpp b/src/gui/kernel/qclipboard_mac.cpp
index f3a971d..49a6cc8 100644
--- a/src/gui/kernel/qclipboard_mac.cpp
+++ b/src/gui/kernel/qclipboard_mac.cpp
@@ -388,6 +388,18 @@ QMacPasteboard::setMimeData(QMimeData *mime_src)
         clear_helper();
         QStringList formats = mime_src->formats();
 
+#ifdef QT_MAC_USE_COCOA
+        // QMimeData sub classes reimplementing the formats() might not expose the
+        // temporary "application/x-qt-mime-type-name" mimetype. So check the existence
+        // of this mime type while doing drag and drop.
+        QString dummyMimeType(QLatin1String("application/x-qt-mime-type-name"));
+        if (!formats.contains(dummyMimeType)) {
+            QByteArray dummyType = mime_src->data(dummyMimeType);
+            if (!dummyType.isEmpty()) {
+                formats.append(dummyMimeType);
+            }
+        }
+#endif
         for(int f = 0; f < formats.size(); ++f) {
             QString mimeType = formats.at(f);
             for (QList<QMacPasteboardMime *>::Iterator it = availableConverters.begin(); it != availableConverters.end(); ++it) {
diff --git a/src/gui/kernel/qcocoaview_mac.mm b/src/gui/kernel/qcocoaview_mac.mm
index 70c78c8..873fb7e 100644
--- a/src/gui/kernel/qcocoaview_mac.mm
+++ b/src/gui/kernel/qcocoaview_mac.mm
@@ -786,6 +786,7 @@ extern "C" {
         deltaZ = qBound(-120, int([theEvent deltaZ] * 10000), 120);
     }
 
+#ifndef QT_NO_WHEELEVENT
     if (deltaX != 0) {
         QWheelEvent qwe(qlocal, qglobal, deltaX, buttons, keyMods, Qt::Horizontal);
         qt_sendSpontaneousEvent(widgetToGetMouse, &qwe);
@@ -826,6 +827,8 @@ extern "C" {
             wheelOK = qwe2.isAccepted();
         }
     }
+#endif //QT_NO_WHEELEVENT
+
     if (!wheelOK) {
         return [super scrollWheel:theEvent];
     }
@@ -1362,7 +1365,7 @@ Qt::DropAction QDragManager::drag(QDrag *o)
 
     // setup the data
     QMacPasteboard dragBoard((CFStringRef) NSDragPboard, QMacPasteboardMime::MIME_DND);
-    dragPrivate()->data->setData(QLatin1String("application/x-qt-mime-type-name"), QByteArray());
+    dragPrivate()->data->setData(QLatin1String("application/x-qt-mime-type-name"), QByteArray("dummy"));
     dragBoard.setMimeData(dragPrivate()->data);
 
     // create the image
diff --git a/src/gui/kernel/qkeymapper_x11.cpp b/src/gui/kernel/qkeymapper_x11.cpp
index 70574e7..4e6c847 100644
--- a/src/gui/kernel/qkeymapper_x11.cpp
+++ b/src/gui/kernel/qkeymapper_x11.cpp
@@ -360,6 +360,13 @@ QList<int> QKeyMapperPrivate::possibleKeysXKB(QKeyEvent *event)
 
         if (code && code < 0xfffe)
             code = QChar(code).toUpper().unicode();
+
+        if (code == Qt::Key_Tab && (baseModifiers & Qt::ShiftModifier)) {
+            // map shift+tab to shift+backtab
+            code = Qt::Key_Backtab;
+            text = QString();
+        }
+
         if (code == baseCode)
             continue;
 
@@ -448,6 +455,13 @@ QList<int> QKeyMapperPrivate::possibleKeysCore(QKeyEvent *event)
 
         if (code && code < 0xfffe)
             code = QChar(code).toUpper().unicode();
+
+        if (code == Qt::Key_Tab && (baseModifiers & Qt::ShiftModifier)) {
+            // map shift+tab to shift+backtab
+            code = Qt::Key_Backtab;
+            text = QString();
+        }
+
         if (code == baseCode)
             continue;
 
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 2e951b6..1e92507 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -192,6 +192,7 @@ QWidgetPrivate::QWidgetPrivate(int version)
       , inDirtyList(0)
       , isScrolled(0)
       , isMoved(0)
+      , isGLWidget(0)
       , usesDoubleBufferedGLContext(0)
 #if defined(Q_WS_X11)
       , picture(0)
@@ -200,7 +201,6 @@ QWidgetPrivate::QWidgetPrivate(int version)
       , nativeGesturePanEnabled(0)
 #elif defined(Q_WS_MAC)
       , needWindowChange(0)
-      , isGLWidget(0)
       , window_event(0)
       , qd_hd(0)
 #endif
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index ff8f276..75b4c12 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -174,6 +174,8 @@ struct QTLWExtra {
 #ifndef QT_NO_QWS_MANAGER
     QWSManager *qwsManager;
 #endif
+#elif defined(Q_OS_SYMBIAN)
+    uint inExpose : 1; // Prevents drawing recursion
 #endif
 };
 
@@ -230,7 +232,6 @@ struct QWExtra {
 #endif
 #elif defined(Q_OS_SYMBIAN) // <----------------------------------------------------- Symbian
     uint activated : 1; // RWindowBase::Activated has been called
-    uint inExpose : 1; // Prevents drawing recursion
 
     /**
      * Defines the behaviour of QSymbianControl::Draw.
@@ -685,6 +686,7 @@ public:
     uint inDirtyList : 1;
     uint isScrolled : 1;
     uint isMoved : 1;
+    uint isGLWidget : 1;
     uint usesDoubleBufferedGLContext : 1;
 
     // *************************** Platform specific ************************************
@@ -716,7 +718,6 @@ public:
 #elif defined(Q_WS_MAC) // <--------------------------------------------------------- MAC
     // This is new stuff
     uint needWindowChange : 1;
-    uint isGLWidget : 1;
 
     // Each wiget keeps a list of all its child and grandchild OpenGL widgets.
     // This list is used to update the gl context whenever a parent and a granparent
diff --git a/src/gui/kernel/qwidget_s60.cpp b/src/gui/kernel/qwidget_s60.cpp
index a844430..ebd289c 100644
--- a/src/gui/kernel/qwidget_s60.cpp
+++ b/src/gui/kernel/qwidget_s60.cpp
@@ -878,6 +878,7 @@ void QWidgetPrivate::registerDropSite(bool /* on */)
 void QWidgetPrivate::createTLSysExtra()
 {
     extra->topextra->backingStore = 0;
+    extra->topextra->inExpose = 0;
 }
 
 void QWidgetPrivate::deleteTLSysExtra()
@@ -891,7 +892,6 @@ void QWidgetPrivate::createSysExtra()
     extra->activated = 0;
     extra->nativePaintMode = QWExtra::Default;
     extra->receiveNativePaintEvents = 0;
-    extra->inExpose = 0;
 }
 
 void QWidgetPrivate::deleteSysExtra()
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp
index 660a2a8..7a3da20 100644
--- a/src/gui/painting/qdrawhelper.cpp
+++ b/src/gui/painting/qdrawhelper.cpp
@@ -1267,32 +1267,28 @@ static const uint L2CacheLineLengthInInts = L2CacheLineLength/sizeof(uint);
   result = 0
   d = d * cia
 */
+#define comp_func_Clear_impl(dest, length, const_alpha)\
+{\
+    if (const_alpha == 255) {\
+        QT_MEMFILL_UINT(dest, length, 0);\
+    } else {\
+        int ialpha = 255 - const_alpha;\
+        PRELOAD_INIT(dest)\
+        for (int i = 0; i < length; ++i) {\
+            PRELOAD_COND(dest)\
+            dest[i] = BYTE_MUL(dest[i], ialpha);\
+        }\
+    }\
+}
+
 static void QT_FASTCALL comp_func_solid_Clear(uint *dest, int length, uint, uint const_alpha)
 {
-    if (const_alpha == 255) {
-        QT_MEMFILL_UINT(dest, length, 0);
-    } else {
-        int ialpha = 255 - const_alpha;
-        PRELOAD_INIT(dest)
-        for (int i = 0; i < length; ++i) {
-            PRELOAD_COND(dest)
-            dest[i] = BYTE_MUL(dest[i], ialpha);
-        }
-    }
+    comp_func_Clear_impl(dest, length, const_alpha);
 }
 
 static void QT_FASTCALL comp_func_Clear(uint *dest, const uint *, int length, uint const_alpha)
 {
-    if (const_alpha == 255) {
-        QT_MEMFILL_UINT(dest, length, 0);
-    } else {
-        int ialpha = 255 - const_alpha;
-        PRELOAD_INIT(dest)
-        for (int i = 0; i < length; ++i) {
-            PRELOAD_COND(dest)
-            dest[i] = BYTE_MUL(dest[i], ialpha);
-        }
-    }
+    comp_func_Clear_impl(dest, length, const_alpha);
 }
 
 /*
diff --git a/src/gui/painting/qdrawhelper_mmx_p.h b/src/gui/painting/qdrawhelper_mmx_p.h
index 8482262..59b3804 100644
--- a/src/gui/painting/qdrawhelper_mmx_p.h
+++ b/src/gui/painting/qdrawhelper_mmx_p.h
@@ -146,36 +146,30 @@ struct QMMXCommonIntrinsics
   result = 0
   d = d * cia
 */
+#define comp_func_Clear_impl(dest, length, const_alpha)\
+{\
+    if (const_alpha == 255) {\
+        qt_memfill(static_cast<quint32*>(dest), quint32(0), length);\
+    } else {\
+        C_FF; C_80; C_00;\
+        m64 ia = MM::negate(MM::load_alpha(const_alpha));\
+        for (int i = 0; i < length; ++i) {\
+            dest[i] = MM::store(MM::byte_mul(MM::load(dest[i]), ia));\
+        }\
+        MM::end();\
+    }\
+}
+
 template <class MM>
 static void QT_FASTCALL comp_func_solid_Clear(uint *dest, int length, uint, uint const_alpha)
 {
-    if (!length)
-        return;
-
-    if (const_alpha == 255) {
-        qt_memfill(static_cast<quint32*>(dest), quint32(0), length);
-    } else {
-        C_FF; C_80; C_00;
-        m64 ia = MM::negate(MM::load_alpha(const_alpha));
-        for (int i = 0; i < length; ++i) {
-            dest[i] = MM::store(MM::byte_mul(MM::load(dest[i]), ia));
-        }
-    }
-    MM::end();
+    comp_func_Clear_impl(dest, length, const_alpha);
 }
 
 template <class MM>
 static void QT_FASTCALL comp_func_Clear(uint *dest, const uint *, int length, uint const_alpha)
 {
-    if (const_alpha == 255) {
-        qt_memfill(static_cast<quint32*>(dest), quint32(0), length);
-    } else {
-        C_FF; C_80; C_00;
-        m64 ia = MM::negate(MM::load_alpha(const_alpha));
-        for (int i = 0; i < length; ++i)
-            dest[i] = MM::store(MM::byte_mul(MM::load(dest[i]), ia));
-    }
-    MM::end();
+    comp_func_Clear_impl(dest, length, const_alpha);
 }
 
 /*
@@ -246,7 +240,10 @@ static void QT_FASTCALL comp_func_SourceOver(uint *dest, const uint *src, int le
     C_FF; C_80; C_00;
     if (const_alpha == 255) {
         for (int i = 0; i < length; ++i) {
-            if ((0xff000000 & src[i]) == 0xff000000) {
+            const uint alphaMaskedSource = 0xff000000 & src[i];
+            if (alphaMaskedSource == 0)
+                continue;
+            if (alphaMaskedSource == 0xff000000) {
                 dest[i] = src[i];
             } else {
                 m64 s = MM::load(src[i]);
@@ -257,6 +254,8 @@ static void QT_FASTCALL comp_func_SourceOver(uint *dest, const uint *src, int le
     } else {
         m64 ca = MM::load_alpha(const_alpha);
         for (int i = 0; i < length; ++i) {
+            if ((0xff000000 & src[i]) == 0)
+                continue;
             m64 s = MM::byte_mul(MM::load(src[i]), ca);
             m64 ia = MM::negate(MM::alpha(s));
             dest[i] = MM::store(MM::add(s, MM::byte_mul(MM::load(dest[i]), ia)));
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h
index 6c47aac..cb0db4f 100644
--- a/src/gui/painting/qdrawhelper_p.h
+++ b/src/gui/painting/qdrawhelper_p.h
@@ -1549,6 +1549,9 @@ template<> inline void qt_memfill(quint8 *dest, quint8 color, int count)
 template <class T>
 inline void qt_memfill(T *dest, T value, int count)
 {
+    if (!count)
+        return;
+
     int n = (count + 7) / 8;
     switch (count & 0x07)
     {
diff --git a/src/gui/painting/qpaintengine_x11.cpp b/src/gui/painting/qpaintengine_x11.cpp
index 147491e..da48fcb 100644
--- a/src/gui/painting/qpaintengine_x11.cpp
+++ b/src/gui/painting/qpaintengine_x11.cpp
@@ -1989,6 +1989,9 @@ void QX11PaintEngine::drawPixmap(const QRectF &r, const QPixmap &px, const QRect
         }
         XFillRectangle(d->dpy, d->hd, d->gc, x, y, sw, sh);
         restore_clip = true;
+    } else if (mono_dst && !mono_src) {
+        QBitmap bitmap(pixmap);
+        XCopyArea(d->dpy, bitmap.handle(), d->hd, d->gc, sx, sy, sw, sh, x, y);
     } else {
         XCopyArea(d->dpy, pixmap.handle(), d->hd, d->gc, sx, sy, sw, sh, x, y);
     }
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index bf12c6b..270144b 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -38,6 +38,7 @@
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
+
 // QtCore
 #include <qdebug.h>
 #include <qmath.h>
@@ -1986,12 +1987,25 @@ QPaintEngine *QPainter::paintEngine() const
     endNativePainting().
 
     Note that only the states the underlying paint engine changes will be reset
-    to their respective default states. If, for example, the OpenGL polygon
-    mode is changed by the user inside a beginNativePaint()/endNativePainting()
-    block, it will not be reset to the default state by endNativePainting().
+    to their respective default states. The states we reset may change from
+    release to release. The following states are currently reset in the OpenGL
+    2 engine:
+
+    \list
+    \i blending is disabled
+    \i the depth, stencil and scissor tests are disabled
+    \i the active texture unit is reset to 0
+    \i the depth mask, depth function and the clear depth are reset to their
+    default values
+    \i the stencil mask, stencil operation and stencil function are reset to
+    their default values
+     \i the current color is reset to solid white
+    \endlist
 
-    Here is an example that shows intermixing of painter commands
-    and raw OpenGL commands:
+    If, for example, the OpenGL polygon mode is changed by the user inside a
+    beginNativePaint()/endNativePainting() block, it will not be reset to the
+    default state by endNativePainting(). Here is an example that shows
+    intermixing of painter commands and raw OpenGL commands:
 
     \snippet doc/src/snippets/code/src_gui_painting_qpainter.cpp 21
 
diff --git a/src/gui/painting/qwindowsurface_s60.cpp b/src/gui/painting/qwindowsurface_s60.cpp
index b41dc2c..6cbf3d9 100644
--- a/src/gui/painting/qwindowsurface_s60.cpp
+++ b/src/gui/painting/qwindowsurface_s60.cpp
@@ -145,12 +145,15 @@ QImage* QS60WindowSurface::buffer(const QWidget *widget)
 
 void QS60WindowSurface::flush(QWidget *widget, const QRegion &region, const QPoint &)
 {
-    QWExtra *extra = widget->d_func()->extraData();
-    if (extra && !extra->inExpose) {
-        extra->inExpose = true; // Prevent DrawNow() from calling syncBackingStore() again
+    QWidget *window = widget->window();
+    Q_ASSERT(window);
+    QTLWExtra *topExtra = window->d_func()->maybeTopData();
+    Q_ASSERT(topExtra);
+    if (!topExtra->inExpose) {
+        topExtra->inExpose = true; // Prevent DrawNow() from calling syncBackingStore() again
         TRect tr = qt_QRect2TRect(region.boundingRect());
         widget->winId()->DrawNow(tr);
-        extra->inExpose = false;
+        topExtra->inExpose = false;
     }
 }
 
diff --git a/src/gui/text/qfont.cpp b/src/gui/text/qfont.cpp
index bbd35f1..dd9e69e 100644
--- a/src/gui/text/qfont.cpp
+++ b/src/gui/text/qfont.cpp
@@ -629,8 +629,9 @@ QFontEngineData::~QFontEngineData()
 
     Returns the name of the font within the underlying window system.
 
-    Only on X11 when Qt was built without FontConfig support the XLFD (X Logical Font Description)
-    is returned; otherwise an empty string.
+    On X11, this function will return an empty string if Qt is built with
+    FontConfig support; otherwise the XLFD (X Logical Font Description) is
+    returned.
 
     Using the return value of this function is usually \e not \e
     portable.
diff --git a/src/gui/text/qfontengine_s60.cpp b/src/gui/text/qfontengine_s60.cpp
index 9dd4af7..3ea084b 100644
--- a/src/gui/text/qfontengine_s60.cpp
+++ b/src/gui/text/qfontengine_s60.cpp
@@ -44,7 +44,7 @@
 #include "qglobal.h"
 #include <private/qapplication_p.h>
 #include "qimage.h"
-#include "qt_s60_p.h"
+#include <private/qt_s60_p.h>
 
 #include <e32base.h>
 #include <e32std.h>
diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp
index 26c7c1e..af91603 100644
--- a/src/gui/text/qtextlayout.cpp
+++ b/src/gui/text/qtextlayout.cpp
@@ -1331,7 +1331,7 @@ void QTextLayout::drawCursor(QPainter *p, const QPointF &pos, int cursorPosition
     QTextLine l(line, d);
     const QScriptLine &sl = d->lines[line];
 
-    const qreal x = position.x() + l.cursorToX(cursorPosition);
+    qreal x = position.x() + l.cursorToX(cursorPosition);
 
     int itm = d->findItem(cursorPosition - 1);
     QFixed base = sl.base();
@@ -1350,6 +1350,10 @@ void QTextLayout::drawCursor(QPainter *p, const QPointF &pos, int cursorPosition
                               && (p->transform().type() > QTransform::TxTranslate);
     if (toggleAntialiasing)
         p->setRenderHint(QPainter::Antialiasing);
+#if defined(QT_MAC_USE_COCOA)
+    // Always draw the cursor aligned to pixel boundary.
+    x = qRound(x);
+#endif
     p->fillRect(QRectF(x, y, qreal(width), (base + descent + 1).toReal()), p->pen().brush());
     if (toggleAntialiasing)
         p->setRenderHint(QPainter::Antialiasing, false);
diff --git a/src/gui/util/qsystemtrayicon_p.h b/src/gui/util/qsystemtrayicon_p.h
index b881f68..e8bf197 100644
--- a/src/gui/util/qsystemtrayicon_p.h
+++ b/src/gui/util/qsystemtrayicon_p.h
@@ -164,7 +164,9 @@ protected:
     bool x11Event(XEvent *event);
     void mousePressEvent(QMouseEvent *event);
     void mouseDoubleClickEvent(QMouseEvent *event);
+#ifndef QT_NO_WHEELEVENT
     void wheelEvent(QWheelEvent *event);
+#endif
     bool event(QEvent *e);
 
 private:
diff --git a/src/gui/util/qsystemtrayicon_x11.cpp b/src/gui/util/qsystemtrayicon_x11.cpp
index a645050..82b4325 100644
--- a/src/gui/util/qsystemtrayicon_x11.cpp
+++ b/src/gui/util/qsystemtrayicon_x11.cpp
@@ -308,10 +308,12 @@ void QSystemTrayIconSys::mouseDoubleClickEvent(QMouseEvent *ev)
         emit q->activated(QSystemTrayIcon::DoubleClick);
 }
 
+#ifndef QT_NO_WHEELEVENT
 void QSystemTrayIconSys::wheelEvent(QWheelEvent *e)
 {
     QApplication::sendEvent(q, e);
 }
+#endif
 
 bool QSystemTrayIconSys::event(QEvent *e)
 {
diff --git a/src/gui/widgets/qabstractslider.cpp b/src/gui/widgets/qabstractslider.cpp
index 73c17db..4bd7b5a 100644
--- a/src/gui/widgets/qabstractslider.cpp
+++ b/src/gui/widgets/qabstractslider.cpp
@@ -705,7 +705,11 @@ bool QAbstractSliderPrivate::scrollByDelta(Qt::Orientation orientation, Qt::Keyb
         // Calculate how many lines to scroll. Depending on what delta is (and 
         // offset), we might end up with a fraction (e.g. scroll 1.3 lines). We can
         // only scroll whole lines, so we keep the reminder until next event.
-        qreal stepsToScrollF = offset * QApplication::wheelScrollLines() * effectiveSingleStep();
+        qreal stepsToScrollF =
+#ifndef QT_NO_WHEELEVENT
+                QApplication::wheelScrollLines() *
+#endif
+                offset * effectiveSingleStep();
         // Check if wheel changed direction since last event:
         if (offset_accumulated != 0 && (offset / offset_accumulated) < 0)
             offset_accumulated = 0;
diff --git a/src/gui/widgets/qabstractspinbox.h b/src/gui/widgets/qabstractspinbox.h
index 059943a..6c062c0 100644
--- a/src/gui/widgets/qabstractspinbox.h
+++ b/src/gui/widgets/qabstractspinbox.h
@@ -137,7 +137,9 @@ protected:
     void resizeEvent(QResizeEvent *event);
     void keyPressEvent(QKeyEvent *event);
     void keyReleaseEvent(QKeyEvent *event);
+#ifndef QT_NO_WHEELEVENT
     void wheelEvent(QWheelEvent *event);
+#endif
     void focusInEvent(QFocusEvent *event);
     void focusOutEvent(QFocusEvent *event);
     void contextMenuEvent(QContextMenuEvent *event);
diff --git a/src/gui/widgets/qcombobox.h b/src/gui/widgets/qcombobox.h
index f332d31..9b19a66 100644
--- a/src/gui/widgets/qcombobox.h
+++ b/src/gui/widgets/qcombobox.h
@@ -245,7 +245,9 @@ protected:
     void mouseReleaseEvent(QMouseEvent *e);
     void keyPressEvent(QKeyEvent *e);
     void keyReleaseEvent(QKeyEvent *e);
+#ifndef QT_NO_WHEELEVENT
     void wheelEvent(QWheelEvent *e);
+#endif
     void contextMenuEvent(QContextMenuEvent *e);
     void inputMethodEvent(QInputMethodEvent *);
     QVariant inputMethodQuery(Qt::InputMethodQuery) const;
diff --git a/src/gui/widgets/qlinecontrol.cpp b/src/gui/widgets/qlinecontrol.cpp
index b0a64ea..db099e8 100644
--- a/src/gui/widgets/qlinecontrol.cpp
+++ b/src/gui/widgets/qlinecontrol.cpp
@@ -1371,6 +1371,8 @@ bool QLineControl::processEvent(QEvent* ev)
             processInputMethodEvent(static_cast<QInputMethodEvent*>(ev)); break;
 #ifndef QT_NO_SHORTCUT
         case QEvent::ShortcutOverride:{
+            if (isReadOnly())
+                return false;
             QKeyEvent* ke = static_cast<QKeyEvent*>(ev);
             if (ke == QKeySequence::Copy
                 || ke == QKeySequence::Paste
diff --git a/src/gui/widgets/qmenu.h b/src/gui/widgets/qmenu.h
index 28bd859..a040afa 100644
--- a/src/gui/widgets/qmenu.h
+++ b/src/gui/widgets/qmenu.h
@@ -162,7 +162,9 @@ protected:
     void mouseReleaseEvent(QMouseEvent *);
     void mousePressEvent(QMouseEvent *);
     void mouseMoveEvent(QMouseEvent *);
+#ifndef QT_NO_WHEELEVENT
     void wheelEvent(QWheelEvent *);
+#endif
     void enterEvent(QEvent *);
     void leaveEvent(QEvent *);
     void hideEvent(QHideEvent *);
diff --git a/src/gui/widgets/qscrollbar.cpp b/src/gui/widgets/qscrollbar.cpp
index 3eed3a9..4eff260 100644
--- a/src/gui/widgets/qscrollbar.cpp
+++ b/src/gui/widgets/qscrollbar.cpp
@@ -521,6 +521,7 @@ bool QScrollBar::event(QEvent *event)
     if (const QHoverEvent *he = static_cast<const QHoverEvent *>(event))
         d_func()->updateHoverControl(he->pos());
         break;
+#ifndef QT_NO_WHEELEVENT
     case QEvent::Wheel: {
         // override wheel event without adding virtual function override
         QWheelEvent *ev = static_cast<QWheelEvent *>(event);
@@ -537,6 +538,7 @@ bool QScrollBar::event(QEvent *event)
             event->accept();
         return true;
     }
+#endif
     default:
         break;
     }