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

Conflicts:
	src/gui/graphicsview/qgraphicsitem_p.h

81 files changed, 989 insertions, 821 deletions

diff --git a/src/gui/accessible/qaccessible_win.cpp b/src/gui/accessible/qaccessible_win.cpp
index f287874..6195451 100644
--- a/src/gui/accessible/qaccessible_win.cpp
+++ b/src/gui/accessible/qaccessible_win.cpp
@@ -270,9 +270,9 @@ void QAccessible::updateAccessibility(QObject *o, int who, Event reason)
     if (!w) {
         if (reason != QAccessible::ContextHelpStart &&
              reason != QAccessible::ContextHelpEnd)
-            w = qApp->focusWidget();
+            w = QApplication::focusWidget();
         if (!w) {
-            w = qApp->activeWindow();
+            w = QApplication::activeWindow();
 
             if (!w)
                 return;
diff --git a/src/gui/accessible/qaccessibleobject.cpp b/src/gui/accessible/qaccessibleobject.cpp
index 7df097b..0c710f0 100644
--- a/src/gui/accessible/qaccessibleobject.cpp
+++ b/src/gui/accessible/qaccessibleobject.cpp
@@ -212,7 +212,7 @@ QAccessibleApplication::QAccessibleApplication()
 static QWidgetList topLevelWidgets()
 {
     QWidgetList list;
-    const QWidgetList tlw(qApp->topLevelWidgets());
+    const QWidgetList tlw(QApplication::topLevelWidgets());
     for (int i = 0; i < tlw.count(); ++i) {
         QWidget *w = tlw.at(i);
         if (!(w->windowType() == Qt::Popup) && !(w->windowType() == Qt::Desktop))
@@ -308,7 +308,7 @@ int QAccessibleApplication::navigate(RelationFlag relation, int entry,
         }
         break;
     case FocusChild:
-        targetObject = qApp->activeWindow();
+        targetObject = QApplication::activeWindow();
         break;
     default:
         break;
@@ -322,11 +322,11 @@ QString QAccessibleApplication::text(Text t, int) const
 {
     switch (t) {
     case Name:
-        if (qApp->activeWindow())
-            return qApp->activeWindow()->windowTitle();
+        if (QApplication::activeWindow())
+            return QApplication::activeWindow()->windowTitle();
         break;
     case Description:
-        return qApp->applicationFilePath();
+        return QApplication::applicationFilePath();
     default:
         break;
     }
@@ -342,7 +342,7 @@ QAccessible::Role QAccessibleApplication::role(int) const
 /*! \reimp */
 QAccessible::State QAccessibleApplication::state(int) const
 {
-    return qApp->activeWindow() ? Focused : Normal;
+    return QApplication::activeWindow() ? Focused : Normal;
 }
 
 /*! \reimp */
@@ -356,7 +356,7 @@ bool QAccessibleApplication::doAction(int action, int child, const QVariantList
 {
     if (action == 0 || action == 1) {
         QWidget *w = 0;
-        w = qApp->activeWindow();
+        w = QApplication::activeWindow();
         if (!w)
             w = topLevelWidgets().at(0);
         if (!w)
diff --git a/src/gui/dialogs/qcolordialog.cpp b/src/gui/dialogs/qcolordialog.cpp
index dc7e3cc..8299381 100644
--- a/src/gui/dialogs/qcolordialog.cpp
+++ b/src/gui/dialogs/qcolordialog.cpp
@@ -1375,7 +1375,7 @@ void QColorDialogPrivate::init(const QColor &initial)
 #else
     // small displays (e.g. PDAs) cannot fit the full color dialog,
     // so just use the color picker.
-    smallDisplay = (qApp->desktop()->width() < 480 || qApp->desktop()->height() < 350);
+    smallDisplay = (QApplication::desktop()->width() < 480 || QApplication::desktop()->height() < 350);
     const int lumSpace = topLay->spacing() / 2;
 #endif
 
diff --git a/src/gui/dialogs/qerrormessage.cpp b/src/gui/dialogs/qerrormessage.cpp
index ca39d31..d24d348 100644
--- a/src/gui/dialogs/qerrormessage.cpp
+++ b/src/gui/dialogs/qerrormessage.cpp
@@ -300,7 +300,7 @@ QErrorMessage * QErrorMessage::qtHandler()
     if (!qtMessageHandler) {
         qtMessageHandler = new QErrorMessage(0);
         qAddPostRoutine(deleteStaticcQErrorMessage); // clean up
-        qtMessageHandler->setWindowTitle(qApp->applicationName());
+        qtMessageHandler->setWindowTitle(QApplication::applicationName());
         qInstallMsgHandler(jump);
     }
     return qtMessageHandler;
diff --git a/src/gui/dialogs/qfiledialog_win.cpp b/src/gui/dialogs/qfiledialog_win.cpp
index 75a1820..4e818be 100644
--- a/src/gui/dialogs/qfiledialog_win.cpp
+++ b/src/gui/dialogs/qfiledialog_win.cpp
@@ -206,7 +206,7 @@ static OPENFILENAMEA *qt_win_make_OFNA(QWidget *parent,
     if (parent)
         parent = parent->window();
     else
-        parent = qApp->activeWindow();
+        parent = QApplication::activeWindow();
 
     aTitle = title.toLocal8Bit();
     aInitDir = QDir::toNativeSeparators(initialDirectory).toLocal8Bit();
@@ -279,7 +279,7 @@ static OPENFILENAME* qt_win_make_OFN(QWidget *parent,
     if (parent)
         parent = parent->window();
     else
-        parent = qApp->activeWindow();
+        parent = QApplication::activeWindow();
 
     tInitDir = QDir::toNativeSeparators(initialDirectory);
     tFilters = filters;
@@ -692,7 +692,7 @@ QString qt_win_get_existing_directory(const QFileDialogArgs &args)
     if (parent)
         parent = parent->window();
     else
-        parent = qApp->activeWindow();
+        parent = QApplication::activeWindow();
     if (parent)
         parent->createWinId();
 
diff --git a/src/gui/dialogs/qfilesystemmodel.cpp b/src/gui/dialogs/qfilesystemmodel.cpp
index 2c47116..603789e 100644
--- a/src/gui/dialogs/qfilesystemmodel.cpp
+++ b/src/gui/dialogs/qfilesystemmodel.cpp
@@ -1407,7 +1407,7 @@ void QFileSystemModel::setIconProvider(QFileIconProvider *provider)
 {
     Q_D(QFileSystemModel);
     d->fileInfoGatherer.setIconProvider(provider);
-    qApp->processEvents();
+    QApplication::processEvents();
     d->root.updateIcon(provider, QString());
 }
 
diff --git a/src/gui/dialogs/qmessagebox.cpp b/src/gui/dialogs/qmessagebox.cpp
index 648cda8..1fefb67 100644
--- a/src/gui/dialogs/qmessagebox.cpp
+++ b/src/gui/dialogs/qmessagebox.cpp
@@ -258,10 +258,8 @@ void QMessageBoxPrivate::init(const QString &title, const QString &text)
 
 int QMessageBoxPrivate::layoutMinimumWidth()
 {
-    Q_Q(QMessageBox);
-
-    q->layout()->activate();
-    return q->layout()->totalMinimumSize().width();
+    layout->activate();
+    return layout->totalMinimumSize().width();
 }
 
 void QMessageBoxPrivate::updateSize()
@@ -334,15 +332,15 @@ void QMessageBoxPrivate::updateSize()
         label->setSizePolicy(policy);
     }
 
-    QFontMetrics fm(qApp->font("QWorkspaceTitleBar"));
+    QFontMetrics fm(QApplication::font("QWorkspaceTitleBar"));
     int windowTitleWidth = qMin(fm.width(q->windowTitle()) + 50, hardLimit);
     if (windowTitleWidth > width)
         width = windowTitleWidth;
 
-    q->layout()->activate();
-    int height = (q->layout()->hasHeightForWidth())
-                     ? q->layout()->totalHeightForWidth(width)
-                     : q->layout()->totalMinimumSize().height();
+    layout->activate();
+    int height = (layout->hasHeightForWidth())
+                     ? layout->totalHeightForWidth(width)
+                     : layout->totalMinimumSize().height();
     q->setFixedSize(width, height);
     QCoreApplication::removePostedEvents(q, QEvent::LayoutRequest);
 }
@@ -363,7 +361,7 @@ void QMessageBoxPrivate::hideSpecial()
             QPushButton *pb = list.at(i);
             QString text = pb->text();
             text.remove(QChar::fromLatin1('&'));
-            if (text == qApp->translate("QMessageBox", "OK" ))
+            if (text == QApplication::translate("QMessageBox", "OK" ))
                 pb->setFixedSize(0,0);
         }
 }
@@ -1210,8 +1208,8 @@ bool QMessageBox::event(QEvent *e)
         case QEvent::HelpRequest: {
           QString bName =
               (e->type() == QEvent::OkRequest)
-              ? qApp->translate("QMessageBox", "OK")
-              : qApp->translate("QMessageBox", "Help");
+              ? QApplication::translate("QMessageBox", "OK")
+              : QApplication::translate("QMessageBox", "Help");
           QList<QPushButton*> list = qFindChildren<QPushButton*>(this);
           for (int i=0; i<list.size(); ++i) {
               QPushButton *pb = list.at(i);
@@ -1324,7 +1322,7 @@ void QMessageBox::keyPressEvent(QKeyEvent *e)
             }
             textToCopy += buttonTexts + separator;
 
-            qApp->clipboard()->setText(textToCopy);
+            QApplication::clipboard()->setText(textToCopy);
             return;
         }
 #endif //QT_NO_SHORTCUT QT_NO_CLIPBOARD Q_OS_WIN
diff --git a/src/gui/dialogs/qpagesetupdialog_win.cpp b/src/gui/dialogs/qpagesetupdialog_win.cpp
index 4bb571c..2c74ed2 100644
--- a/src/gui/dialogs/qpagesetupdialog_win.cpp
+++ b/src/gui/dialogs/qpagesetupdialog_win.cpp
@@ -98,7 +98,7 @@ int QPageSetupDialog::exec()
     psd.hDevNames = tempDevNames;
 
     QWidget *parent = parentWidget();
-    parent = parent ? parent->window() : qApp->activeWindow();
+    parent = parent ? parent->window() : QApplication::activeWindow();
     Q_ASSERT(!parent ||parent->testAttribute(Qt::WA_WState_Created));
     psd.hwndOwner = parent ? parent->winId() : 0;
 
diff --git a/src/gui/dialogs/qprintdialog_win.cpp b/src/gui/dialogs/qprintdialog_win.cpp
index 936d1ed..2561227 100644
--- a/src/gui/dialogs/qprintdialog_win.cpp
+++ b/src/gui/dialogs/qprintdialog_win.cpp
@@ -225,7 +225,7 @@ int QPrintDialogPrivate::openWindowsPrintDialogModally()
     if (parent)
         parent = parent->window();
     else
-        parent = qApp->activeWindow();
+        parent = QApplication::activeWindow();
 
     QWidget modal_widget;
     modal_widget.setAttribute(Qt::WA_NoChildEventsForParent, true);
diff --git a/src/gui/dialogs/qprogressdialog.cpp b/src/gui/dialogs/qprogressdialog.cpp
index 66a1285..b68a0a72 100644
--- a/src/gui/dialogs/qprogressdialog.cpp
+++ b/src/gui/dialogs/qprogressdialog.cpp
@@ -643,7 +643,7 @@ void QProgressDialog::setValue(int progress)
 
     if (d->shown_once) {
         if (isModal())
-            qApp->processEvents();
+            QApplication::processEvents();
     } else {
         if (progress == 0) {
             d->starttime.start();
diff --git a/src/gui/dialogs/qwizard.cpp b/src/gui/dialogs/qwizard.cpp
index b2ed983..7fc8a63 100644
--- a/src/gui/dialogs/qwizard.cpp
+++ b/src/gui/dialogs/qwizard.cpp
@@ -377,7 +377,7 @@ void QWizardHeader::setup(const QWizardLayoutInfo &info, const QString &title,
         /*
             There is no widthForHeight() function, so we simulate it with a loop.
         */
-        int candidateSubTitleWidth = qMin(512, 2 * qApp->desktop()->width() / 3);
+        int candidateSubTitleWidth = qMin(512, 2 * QApplication::desktop()->width() / 3);
         int delta = candidateSubTitleWidth >> 1;
         while (delta > 0) {
             if (subTitleLabel->heightForWidth(candidateSubTitleWidth - delta)
diff --git a/src/gui/dialogs/qwizard_win.cpp b/src/gui/dialogs/qwizard_win.cpp
index 8aad4af..e0aaa19 100644
--- a/src/gui/dialogs/qwizard_win.cpp
+++ b/src/gui/dialogs/qwizard_win.cpp
@@ -279,7 +279,7 @@ QVistaHelper::VistaState QVistaHelper::vistaState()
 QColor QVistaHelper::basicWindowFrameColor()
 {
     DWORD rgb;
-    HANDLE hTheme = pOpenThemeData(qApp->desktop()->winId(), L"WINDOW");
+    HANDLE hTheme = pOpenThemeData(QApplication::desktop()->winId(), L"WINDOW");
     pGetThemeColor(
         hTheme, WIZ_WP_CAPTION, WIZ_CS_ACTIVE,
         wizard->isActiveWindow() ? WIZ_TMT_FILLCOLORHINT : WIZ_TMT_BORDERCOLORHINT,
@@ -611,7 +611,7 @@ bool QVistaHelper::drawTitleText(QPainter *painter, const QString &text, const Q
 {
     bool value = false;
     if (vistaState() == VistaAero) {
-        HANDLE hTheme = pOpenThemeData(qApp->desktop()->winId(), L"WINDOW");
+        HANDLE hTheme = pOpenThemeData(QApplication::desktop()->winId(), L"WINDOW");
         if (!hTheme) return false;
         // Set up a memory DC and bitmap that we'll draw into
         HDC dcMem;
diff --git a/src/gui/graphicsview/graphicsview.pri b/src/gui/graphicsview/graphicsview.pri
index 02d9bb1..4cee6d6 100644
--- a/src/gui/graphicsview/graphicsview.pri
+++ b/src/gui/graphicsview/graphicsview.pri
@@ -1,46 +1,37 @@
 # Qt graphicsview module
-
-HEADERS += \
-        graphicsview/qgraphicsitem.h \
-        graphicsview/qgraphicsitem_p.h \
-        graphicsview/qgraphicsitemanimation.h \
-        graphicsview/qgraphicsscene.h \
-        graphicsview/qgraphicsscene_p.h \
-        graphicsview/qgraphicsscene_bsp_p.h \
-        graphicsview/qgraphicssceneevent.h \
-        graphicsview/qgraphicsview_p.h \
-        graphicsview/qgraphicsview.h
-
-SOURCES += \
-        graphicsview/qgraphicsitem.cpp \
-        graphicsview/qgraphicsitemanimation.cpp \
-        graphicsview/qgraphicsscene.cpp \
-        graphicsview/qgraphicsscene_bsp.cpp \
-        graphicsview/qgraphicssceneevent.cpp \
-        graphicsview/qgraphicsview.cpp
+HEADERS += graphicsview/qgraphicsitem.h \
+    graphicsview/qgraphicsitem_p.h \
+    graphicsview/qgraphicsitemanimation.h \
+    graphicsview/qgraphicsscene.h \
+    graphicsview/qgraphicsscene_p.h \
+    graphicsview/qgraphicsscene_bsp_p.h \
+    graphicsview/qgraphicssceneevent.h \
+    graphicsview/qgraphicsview_p.h \
+    graphicsview/qgraphicsview.h
+SOURCES += graphicsview/qgraphicsitem.cpp \
+    graphicsview/qgraphicsitemanimation.cpp \
+    graphicsview/qgraphicsscene.cpp \
+    graphicsview/qgraphicsscene_bsp.cpp \
+    graphicsview/qgraphicssceneevent.cpp \
+    graphicsview/qgraphicsview.cpp
 
 # Widgets on the canvas
-
-HEADERS += \
-        graphicsview/qgraphicslayout.h \
-        graphicsview/qgraphicslayout_p.h \
-        graphicsview/qgraphicslayoutitem.h \
-        graphicsview/qgraphicslayoutitem_p.h \
-        graphicsview/qgraphicslinearlayout.h \
-        graphicsview/qgraphicswidget.h \
-        graphicsview/qgraphicswidget_p.h \
-        graphicsview/qgridlayoutengine_p.h \
-        graphicsview/qgraphicsproxywidget.h \
-        graphicsview/qgraphicsgridlayout.h
-                                       
-SOURCES += \
-        graphicsview/qgraphicslayout.cpp \
-        graphicsview/qgraphicslayout_p.cpp \
-        graphicsview/qgraphicslayoutitem.cpp \
-        graphicsview/qgraphicslinearlayout.cpp \
-        graphicsview/qgraphicswidget.cpp \
-        graphicsview/qgraphicswidget_p.cpp \
-        graphicsview/qgridlayoutengine.cpp \
-        graphicsview/qgraphicsproxywidget.cpp \
-        graphicsview/qgraphicsgridlayout.cpp
-
+HEADERS += graphicsview/qgraphicslayout.h \
+    graphicsview/qgraphicslayout_p.h \
+    graphicsview/qgraphicslayoutitem.h \
+    graphicsview/qgraphicslayoutitem_p.h \
+    graphicsview/qgraphicslinearlayout.h \
+    graphicsview/qgraphicswidget.h \
+    graphicsview/qgraphicswidget_p.h \
+    graphicsview/qgridlayoutengine_p.h \
+    graphicsview/qgraphicsproxywidget.h \
+    graphicsview/qgraphicsgridlayout.h
+SOURCES += graphicsview/qgraphicslayout.cpp \
+    graphicsview/qgraphicslayout_p.cpp \
+    graphicsview/qgraphicslayoutitem.cpp \
+    graphicsview/qgraphicslinearlayout.cpp \
+    graphicsview/qgraphicswidget.cpp \
+    graphicsview/qgraphicswidget_p.cpp \
+    graphicsview/qgridlayoutengine.cpp \
+    graphicsview/qgraphicsproxywidget.cpp \
+    graphicsview/qgraphicsgridlayout.cpp
diff --git a/src/gui/graphicsview/qgraphicsgridlayout.cpp b/src/gui/graphicsview/qgraphicsgridlayout.cpp
index 1e21b54..36281f8 100644
--- a/src/gui/graphicsview/qgraphicsgridlayout.cpp
+++ b/src/gui/graphicsview/qgraphicsgridlayout.cpp
@@ -100,7 +100,7 @@ QLayoutStyleInfo QGraphicsGridLayoutPrivate::styleInfo() const
     if (!wid)
         wid = new QWidget;
     QGraphicsItem *item = parentItem();
-    QStyle *style = (item && item->isWidget()) ? static_cast<QGraphicsWidget*>(item)->style() : qApp->style();
+    QStyle *style = (item && item->isWidget()) ? static_cast<QGraphicsWidget*>(item)->style() : QApplication::style();
     return QLayoutStyleInfo(style, wid);
 }
 
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 1bf73a6..9fc3fa1 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -962,6 +962,9 @@ void QGraphicsItemPrivate::setParentItemHelper(QGraphicsItem *newParent)
 
     // Deliver post-change notification
     q->itemChange(QGraphicsItem::ItemParentHasChanged, newParentVariant);
+
+    if (isObject)
+        emit static_cast<QGraphicsObject *>(q)->parentChanged();
 }
 
 /*!
@@ -1217,6 +1220,20 @@ QGraphicsItem *QGraphicsItem::topLevelItem() const
 /*!
     \since 4.4
 
+    Returns a pointer to the item's parent, cast to a QGraphicsObject. returns 0 if the parent item
+    is not a QGraphicsObject.
+
+    \sa parentItem(), childItems()
+*/
+QGraphicsObject *QGraphicsItem::parentObject() const
+{
+    QGraphicsItem *p = d_ptr->parent;
+    return (p && p->d_ptr->isObject) ? static_cast<QGraphicsObject *>(p) : 0;
+}
+
+/*!
+    \since 4.4
+
     Returns a pointer to the item's parent widget. The item's parent widget is
     the closest parent item that is a widget.
 
@@ -1264,6 +1281,28 @@ QGraphicsWidget *QGraphicsItem::window() const
 }
 
 /*!
+  \since 4.6
+
+  Return the graphics item cast to a QGraphicsObject, if the class is actually a
+  graphics object, 0 otherwise.
+*/
+QGraphicsObject *QGraphicsItem::toGraphicsObject()
+{
+    return d_ptr->isObject ? static_cast<QGraphicsObject *>(this) : 0;
+}
+
+/*!
+  \since 4.6
+
+  Return the graphics item cast to a QGraphicsObject, if the class is actually a
+  graphics object, 0 otherwise.
+*/
+const QGraphicsObject *QGraphicsItem::toGraphicsObject() const
+{
+    return d_ptr->isObject ? static_cast<const QGraphicsObject *>(this) : 0;
+}
+
+/*!
     Sets this item's parent item to \a parent. If this item already has a
     parent, it is first removed from the previous parent. If \a parent is 0,
     this item will become a top-level item.
@@ -1771,6 +1810,9 @@ void QGraphicsItemPrivate::setVisibleHelper(bool newVisible, bool explicitly, bo
 
     // Deliver post-change notification.
     q_ptr->itemChange(QGraphicsItem::ItemVisibleHasChanged, newVisibleVariant);
+
+    if (isObject)
+        emit static_cast<QGraphicsObject *>(q_ptr)->visibleChanged();
 }
 
 /*!
@@ -1891,6 +1933,9 @@ void QGraphicsItemPrivate::setEnabledHelper(bool newEnabled, bool explicitly, bo
 
     // Deliver post-change notification.
     q_ptr->itemChange(QGraphicsItem::ItemEnabledHasChanged, newEnabledVariant);
+
+    if (isObject)
+        emit static_cast<QGraphicsObject *>(q_ptr)->enabledChanged();
 }
 
 /*!
@@ -2086,6 +2131,9 @@ void QGraphicsItem::setOpacity(qreal opacity)
                                           /*maybeDirtyClipPath=*/false,
                                           /*force=*/false,
                                           /*ignoreOpacity=*/true);
+
+    if (d_ptr->isObject)
+        emit static_cast<QGraphicsObject *>(this)->opacityChanged();
 }
 
 /*!
@@ -2524,6 +2572,17 @@ QPointF QGraphicsItem::pos() const
     \sa y()
 */
 
+/*
+  Set's the x coordinate of the item's position. Equivalent to
+  calling setPos(x, y()).
+
+  \sa x(), setPos()
+*/
+void QGraphicsItem::setX(qreal x)
+{
+    d_ptr->setPosHelper(QPointF(x, d_ptr->pos.y()));
+}
+
 /*!
     \fn QGraphicsItem::y() const
 
@@ -2532,6 +2591,17 @@ QPointF QGraphicsItem::pos() const
     \sa x()
 */
 
+/*
+  Set's the y coordinate of the item's position. Equivalent to
+  calling setPos(x(), y).
+
+  \sa x(), setPos()
+*/
+void QGraphicsItem::setY(qreal y)
+{
+    d_ptr->setPosHelper(QPointF(d_ptr->pos.x(), y));
+}
+
 /*!
     Returns the item's position in scene coordinates. This is
     equivalent to calling \c mapToScene(0, 0).
@@ -2555,9 +2625,16 @@ void QGraphicsItemPrivate::setPosHelper(const QPointF &pos)
     updateCachedClipPathFromSetPosHelper(pos);
     if (scene)
         q->prepareGeometryChange();
+    QPointF oldPos = this->pos;
     this->pos = pos;
     dirtySceneTransform = 1;
     inSetPosHelper = 0;
+    if (isObject) {
+        if (pos.x() != oldPos.x())
+            emit static_cast<QGraphicsObject *>(q_ptr)->xChanged();
+        if (pos.y() != oldPos.y())
+            emit static_cast<QGraphicsObject *>(q_ptr)->yChanged();
+    }
 }
 
 /*!
@@ -3021,7 +3098,7 @@ QPointF QGraphicsItem::transformOrigin() const
 /*!
     \since 4.6
 
-    Sets the origin for transformation in item coordinate
+    Sets the \a origin for transformation in item coordinate
 
     \sa transformOrigin(), {Transformations}
 */
@@ -3036,11 +3113,14 @@ void QGraphicsItem::setTransformOrigin(const QPointF &origin)
 }
 
 /*!
-    \fn inline void setTransformOrigin(qreal x, qreal y)
+    \fn void QGraphicsItem::setTransformOrigin(qreal x, qreal y)
 
     \since 4.6
     \overload
 
+    Sets the origin for the transformation to the point
+    composed of \a x and \a y.
+    
     \sa setTransformOrigin(), {Transformations}
 */
 
@@ -3537,6 +3617,9 @@ void QGraphicsItem::setZValue(qreal z)
     }
 
     itemChange(ItemZValueHasChanged, newZVariant);
+
+    if (d_ptr->isObject)
+        emit static_cast<QGraphicsObject *>(this)->zChanged();
 }
 
 /*!
@@ -4315,7 +4398,9 @@ void QGraphicsItemPrivate::updateCachedClipPathFromSetPosHelper(const QPointF &n
     // Find closest clip ancestor and transform.
     Q_Q(QGraphicsItem);
     // COMBINE
-    QTransform thisToParentTransform = transformToParent();
+    QTransform thisToParentTransform = transformData
+        ? transformData->computedFullTransform() * QTransform::fromTranslate(newPos.x(), newPos.y())
+        : QTransform::fromTranslate(newPos.x(), newPos.y());
     QGraphicsItem *clipParent = parent;
     while (clipParent && !(clipParent->d_ptr->flags & QGraphicsItem::ItemClipsChildrenToShape)) {
         thisToParentTransform *= clipParent->d_ptr->transformToParent();
@@ -6469,6 +6554,160 @@ static void qt_graphicsItem_highlightSelected(
 }
 
 /*!
+    \class QGraphicsObject
+    \brief The QGraphicsObject class provides a base class for all graphics items that
+    require signals, slots and properties.
+    \since 4.6
+    \ingroup graphicsview-api
+
+    The class extends a QGraphicsItem with QObject's signal/slot and property mechanisms.
+    It maps many of QGraphicsItem's basic setters and getters to properties and adds notification
+    signals for many of them.
+*/
+
+/*!
+    Constructs a QGraphicsObject with \a parent.
+*/
+QGraphicsObject::QGraphicsObject(QGraphicsItem *parent)
+        : QGraphicsItem(parent)
+{
+    QGraphicsItem::d_ptr->isObject = true;
+}
+
+/*!
+  \internal
+*/
+QGraphicsObject::QGraphicsObject(QGraphicsItemPrivate &dd, QGraphicsItem *parent, QGraphicsScene *scene)
+    : QGraphicsItem(dd, parent, scene)
+{
+    QGraphicsItem::d_ptr->isObject = true;
+}
+
+/*!
+  \property QGraphicsObject::parent
+  \brief the parent of the item
+
+  \sa QGraphicsItem::setParentItem, QGraphicsItem::parentObject
+*/
+
+
+/*!
+  \property QGraphicsObject::opacity
+  \brief the opacity of the item
+
+  \sa QGraphicsItem::setOpacity, QGraphicsItem::opacity
+*/
+
+/*!
+  \fn QGraphicsObject::opacityChanged()
+
+  This signal gets emitted whenever the opacity of the item changes
+
+  \sa opacity
+*/
+
+/*!
+  \property QGraphicsObject::pos
+  \brief the position of the item
+
+  Describes the items position.
+
+  \sa QGraphicsItem::setPos, QGraphicsItem::pos, positionChanged
+*/
+
+/*!
+  \property QGraphicsObject::x
+  \brief the x position of the item
+
+  Describes the items x position.
+
+  \sa QGraphicsItem::setX, setPos, xChanged
+*/
+
+/*!
+  \fn QGraphicsObject::xChanged()
+
+  This signal gets emitted whenever the x position of the item changes
+
+  \sa pos
+*/
+
+/*!
+  \property QGraphicsObject::y
+  \brief the y position of the item
+
+  Describes the items y position.
+
+  \sa QGraphicsItem::setY, setPos, yChanged
+*/
+
+/*!
+  \fn QGraphicsObject::yChanged()
+
+  This signal gets emitted whenever the y position of the item changes
+
+  \sa pos
+*/
+
+/*!
+  \property QGraphicsObject::z
+  \brief the z value of the item
+
+  Describes the items z value.
+
+  \sa QGraphicsItem::setZValue, zValue, zChanged
+*/
+
+/*!
+  \fn QGraphicsObject::zChanged()
+
+  This signal gets emitted whenever the z value of the item changes
+
+  \sa pos
+*/
+
+
+/*!
+  \property QGraphicsObject::enabled
+  \brief whether the item is enabled or not
+
+  This property is declared in QGraphicsItem.
+
+  By default, this property is true.
+
+  \sa QGraphicsItem::isEnabled(), QGraphicsItem::setEnabled(), enabledChanged()
+*/
+
+/*!
+  \fn QGraphicsObject::enabledChanged()
+
+  This signal gets emitted whenever the item get's enabled or disabled.
+
+  \sa enabled
+*/
+
+/*!
+  \property QGraphicsObject::visible
+  \brief whether the item is visible or not
+
+  This property is declared in QGraphicsItem.
+
+  By default, this property is true.
+
+  \sa QGraphicsItem::isVisible(), QGraphicsItem::setVisible(), visibleChanged()
+*/
+
+/*!
+  \fn QGraphicsObject::visibleChanged()
+
+  This signal gets emitted whenever the visibility of the item changes
+
+  \sa visible
+*/
+
+
+
+/*!
     \class QAbstractGraphicsShapeItem
     \brief The QAbstractGraphicsShapeItem class provides a common base for
     all path items.
@@ -8292,6 +8531,7 @@ public:
     QGraphicsTextItem *qq;
 };
 
+
 /*!
     Constructs a QGraphicsTextItem, using \a text as the default plain
     text. \a parent is passed to QGraphicsItem's constructor.
@@ -8304,7 +8544,7 @@ QGraphicsTextItem::QGraphicsTextItem(const QString &text, QGraphicsItem *parent
                                      , QGraphicsScene *scene
 #endif
     )
-    : QGraphicsItem(parent, scene), dd(new QGraphicsTextItemPrivate)
+    : QGraphicsObject(*new QGraphicsItemPrivate, parent, scene), dd(new QGraphicsTextItemPrivate)
 {
     dd->qq = this;
     if (!text.isEmpty())
@@ -8326,7 +8566,7 @@ QGraphicsTextItem::QGraphicsTextItem(QGraphicsItem *parent
                                      , QGraphicsScene *scene
 #endif
     )
-    : QGraphicsItem(parent, scene), dd(new QGraphicsTextItemPrivate)
+    : QGraphicsObject(*new QGraphicsItemPrivate, parent, scene), dd(new QGraphicsTextItemPrivate)
 {
     dd->qq = this;
     setAcceptDrops(true);
diff --git a/src/gui/graphicsview/qgraphicsitem.h b/src/gui/graphicsview/qgraphicsitem.h
index 7c46b87..79cbfd9 100644
--- a/src/gui/graphicsview/qgraphicsitem.h
+++ b/src/gui/graphicsview/qgraphicsitem.h
@@ -63,6 +63,7 @@ class QBrush;
 class QCursor;
 class QFocusEvent;
 class QGraphicsItemGroup;
+class QGraphicsObject;
 class QGraphicsSceneContextMenuEvent;
 class QGraphicsSceneDragDropEvent;
 class QGraphicsSceneEvent;
@@ -150,6 +151,7 @@ public:
 
     QGraphicsItem *parentItem() const;
     QGraphicsItem *topLevelItem() const;
+    QGraphicsObject *parentObject() const;
     QGraphicsWidget *parentWidget() const;
     QGraphicsWidget *topLevelWidget() const;
     QGraphicsWidget *window() const;
@@ -159,6 +161,9 @@ public:
     bool isWidget() const;
     bool isWindow() const;
 
+    QGraphicsObject *toGraphicsObject();
+    const QGraphicsObject *toGraphicsObject() const;
+
     QGraphicsItemGroup *group() const;
     void setGroup(QGraphicsItemGroup *group);
 
@@ -225,7 +230,9 @@ public:
     // Positioning in scene coordinates
     QPointF pos() const;
     inline qreal x() const { return pos().x(); }
+    void setX(qreal x);
     inline qreal y() const { return pos().y(); }
+    void setY(qreal y);
     QPointF scenePos() const;
     void setPos(const QPointF &pos);
     inline void setPos(qreal x, qreal y);
@@ -491,6 +498,39 @@ inline QRectF QGraphicsItem::mapRectFromParent(qreal ax, qreal ay, qreal w, qrea
 inline QRectF QGraphicsItem::mapRectFromScene(qreal ax, qreal ay, qreal w, qreal h) const
 { return mapRectFromScene(QRectF(ax, ay, w, h)); }
 
+
+class Q_GUI_EXPORT QGraphicsObject : public QObject, public QGraphicsItem
+{
+    Q_OBJECT
+    Q_PROPERTY(QGraphicsObject * parent READ parentObject WRITE setParentItem NOTIFY parentChanged DESIGNABLE false)
+    Q_PROPERTY(QString id READ objectName WRITE setObjectName)
+    Q_PROPERTY(qreal opacity READ opacity WRITE setOpacity NOTIFY opacityChanged)
+    Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged)
+    Q_PROPERTY(bool visible READ isVisible WRITE setVisible NOTIFY visibleChanged)
+    Q_PROPERTY(QPointF pos READ pos WRITE setPos)
+    Q_PROPERTY(qreal x READ x WRITE setX NOTIFY xChanged)
+    Q_PROPERTY(qreal y READ y WRITE setY NOTIFY yChanged)
+    Q_PROPERTY(qreal z READ zValue WRITE setZValue NOTIFY zChanged)
+public:
+    QGraphicsObject(QGraphicsItem *parent = 0);
+
+Q_SIGNALS:
+    void parentChanged();
+    void opacityChanged();
+    void visibleChanged();
+    void enabledChanged();
+    void xChanged();
+    void yChanged();
+    void zChanged();
+
+protected:
+    QGraphicsObject(QGraphicsItemPrivate &dd, QGraphicsItem *parent, QGraphicsScene *scene);
+private:
+    friend class QGraphicsItem;
+    friend class QGraphicsItemPrivate;
+};
+
+
 class QAbstractGraphicsShapeItemPrivate;
 class Q_GUI_EXPORT QAbstractGraphicsShapeItem : public QGraphicsItem
 {
@@ -842,7 +882,7 @@ inline void QGraphicsPixmapItem::setOffset(qreal ax, qreal ay)
 class QGraphicsTextItemPrivate;
 class QTextDocument;
 class QTextCursor;
-class Q_GUI_EXPORT QGraphicsTextItem : public QObject, public QGraphicsItem
+class Q_GUI_EXPORT QGraphicsTextItem : public QGraphicsObject
 {
     Q_OBJECT
     QDOC_PROPERTY(bool openExternalLinks READ openExternalLinks WRITE setOpenExternalLinks)
diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h
index 7501aa8..b8b947d 100644
--- a/src/gui/graphicsview/qgraphicsitem_p.h
+++ b/src/gui/graphicsview/qgraphicsitem_p.h
@@ -157,6 +157,7 @@ public:
         dirtySceneTransform(1),
         geometryChanged(0),
         inDestructor(0),
+        isObject(0),
         acceptTouchEvents(0),
         acceptedTouchBeginEvent(0),
         globalStackingOrder(-1),
@@ -375,7 +376,7 @@ public:
     QGraphicsScene *scene;
     QGraphicsItem *parent;
     QList<QGraphicsItem *> children;
-    class TransformData;
+    struct TransformData;
     TransformData *transformData;
     QTransform sceneTransform;
     int index;
@@ -439,9 +440,10 @@ public:
     quint32 dirtySceneTransform  : 1;
     quint32 geometryChanged : 1;
     quint32 inDestructor : 1;
+    quint32 isObject : 1;
     quint32 acceptTouchEvents : 1;
     quint32 acceptedTouchBeginEvent : 1;
-    quint32 unused : 13; // feel free to use
+    quint32 unused : 12; // feel free to use
 
     // Optional stacking order
     int globalStackingOrder;
diff --git a/src/gui/graphicsview/qgraphicslinearlayout.cpp b/src/gui/graphicsview/qgraphicslinearlayout.cpp
index 6a2d456..2f32950 100644
--- a/src/gui/graphicsview/qgraphicslinearlayout.cpp
+++ b/src/gui/graphicsview/qgraphicslinearlayout.cpp
@@ -178,7 +178,7 @@ QLayoutStyleInfo QGraphicsLinearLayoutPrivate::styleInfo() const
     if (!wid)
         wid = new QWidget;
     QGraphicsItem *item = parentItem();
-    QStyle *style = (item && item->isWidget()) ? static_cast<QGraphicsWidget*>(item)->style() : qApp->style();
+    QStyle *style = (item && item->isWidget()) ? static_cast<QGraphicsWidget*>(item)->style() : QApplication::style();
     return QLayoutStyleInfo(style, wid);
 }
 
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index a8abfea..c142dfc 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -2165,7 +2165,7 @@ void QGraphicsScenePrivate::setFont_helper(const QFont &font)
 */
 void QGraphicsScenePrivate::resolveFont()
 {
-    QFont naturalFont = qApp->font();
+    QFont naturalFont = QApplication::font();
     naturalFont.resolve(0);
     QFont resolvedFont = font.resolve(naturalFont);
     updateFont(resolvedFont);
@@ -2221,7 +2221,7 @@ void QGraphicsScenePrivate::setPalette_helper(const QPalette &palette)
 */
 void QGraphicsScenePrivate::resolvePalette()
 {
-    QPalette naturalPalette = qApp->palette();
+    QPalette naturalPalette = QApplication::palette();
     naturalPalette.resolve(0);
     QPalette resolvedPalette = palette.resolve(naturalPalette);
     updatePalette(resolvedPalette);
@@ -4099,10 +4099,10 @@ bool QGraphicsScene::eventFilter(QObject *watched, QEvent *event)
 
     switch (event->type()) {
     case QEvent::ApplicationPaletteChange:
-        qApp->postEvent(this, new QEvent(QEvent::ApplicationPaletteChange));
+        QApplication::postEvent(this, new QEvent(QEvent::ApplicationPaletteChange));
         break;
     case QEvent::ApplicationFontChange:
-        qApp->postEvent(this, new QEvent(QEvent::ApplicationFontChange));
+        QApplication::postEvent(this, new QEvent(QEvent::ApplicationFontChange));
         break;
     default:
         break;
@@ -5042,7 +5042,7 @@ void QGraphicsScenePrivate::drawItemHelper(QGraphicsItem *item, QPainter *painte
         bool allowPartialCacheExposure = !viewRect.contains(deviceRect);
 #else
         // Only if deviceRect is 20% taller or wider than the desktop.
-        QRect desktopRect = qApp->desktop()->availableGeometry(widget);
+        QRect desktopRect = QApplication::desktop()->availableGeometry(widget);
         bool allowPartialCacheExposure = (desktopRect.width() * 1.2 < deviceRect.width()
                                           || desktopRect.height() * 1.2 < deviceRect.height());
 #endif
@@ -5393,7 +5393,9 @@ void QGraphicsScenePrivate::markDirty(QGraphicsItem *item, const QRectF &rect, b
 
         for (int i = 0; i < views.size(); ++i) {
             QGraphicsViewPrivate *viewPrivate = views.at(i)->d_func();
-            viewPrivate->updateRect(item->d_ptr->paintedViewBoundingRects.value(viewPrivate->viewport));
+            QRect rect = item->d_ptr->paintedViewBoundingRects.value(viewPrivate->viewport);
+            rect.translate(viewPrivate->dirtyScrollOffset);
+            viewPrivate->updateRect(rect);
         }
         return;
     }
@@ -5474,7 +5476,9 @@ void QGraphicsScenePrivate::processDirtyItemsRecursive(QGraphicsItem *item, bool
 
                 if (item->d_ptr->paintedViewBoundingRectsNeedRepaint) {
                     wasDirtyParentViewBoundingRects = true;
-                    viewPrivate->updateRect(item->d_ptr->paintedViewBoundingRects.value(viewPrivate->viewport));
+                    QRect rect = item->d_ptr->paintedViewBoundingRects.value(viewPrivate->viewport);
+                    rect.translate(viewPrivate->dirtyScrollOffset);
+                    viewPrivate->updateRect(rect);
                 }
 
                 if (!item->d_ptr->dirty)
@@ -5730,7 +5734,7 @@ QStyle *QGraphicsScene::style() const
 {
     Q_D(const QGraphicsScene);
     // ### This function, and the use of styles in general, is non-reentrant.
-    return d->style ? d->style : qApp->style();
+    return d->style ? d->style : QApplication::style();
 }
 
 /*!
@@ -5807,7 +5811,7 @@ QFont QGraphicsScene::font() const
 void QGraphicsScene::setFont(const QFont &font)
 {
     Q_D(QGraphicsScene);
-    QFont naturalFont = qApp->font();
+    QFont naturalFont = QApplication::font();
     naturalFont.resolve(0);
     QFont resolvedFont = font.resolve(naturalFont);
     d->setFont_helper(resolvedFont);
@@ -5844,7 +5848,7 @@ QPalette QGraphicsScene::palette() const
 void QGraphicsScene::setPalette(const QPalette &palette)
 {
     Q_D(QGraphicsScene);
-    QPalette naturalPalette = qApp->palette();
+    QPalette naturalPalette = QApplication::palette();
     naturalPalette.resolve(0);
     QPalette resolvedPalette = palette.resolve(naturalPalette);
     d->setPalette_helper(resolvedPalette);
diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp
index cc16ebc..0abfb56 100644
--- a/src/gui/graphicsview/qgraphicsview.cpp
+++ b/src/gui/graphicsview/qgraphicsview.cpp
@@ -408,7 +408,7 @@ void QGraphicsViewPrivate::recalculateContentSize()
     int left =  q_round_bound(viewRect.left());
     int right = q_round_bound(viewRect.right() - width);
     if (left >= right) {
-        q->horizontalScrollBar()->setRange(0, 0);
+        hbar->setRange(0, 0);
 
         switch (alignment & Qt::AlignHorizontal_Mask) {
         case Qt::AlignLeft:
@@ -423,9 +423,9 @@ void QGraphicsViewPrivate::recalculateContentSize()
             break;
         }
     } else {
-        q->horizontalScrollBar()->setRange(left, right);
-        q->horizontalScrollBar()->setPageStep(width);
-        q->horizontalScrollBar()->setSingleStep(width / 20);
+        hbar->setRange(left, right);
+        hbar->setPageStep(width);
+        hbar->setSingleStep(width / 20);
         leftIndent = 0;
     }
 
@@ -434,7 +434,7 @@ void QGraphicsViewPrivate::recalculateContentSize()
     int top = q_round_bound(viewRect.top());
     int bottom = q_round_bound(viewRect.bottom()  - height);
     if (top >= bottom) {
-        q->verticalScrollBar()->setRange(0, 0);
+        vbar->setRange(0, 0);
 
         switch (alignment & Qt::AlignVertical_Mask) {
         case Qt::AlignTop:
@@ -449,9 +449,9 @@ void QGraphicsViewPrivate::recalculateContentSize()
             break;
         }
     } else {
-        q->verticalScrollBar()->setRange(top, bottom);
-        q->verticalScrollBar()->setPageStep(height);
-        q->verticalScrollBar()->setSingleStep(height / 20);
+        vbar->setRange(top, bottom);
+        vbar->setPageStep(height);
+        vbar->setSingleStep(height / 20);
         topIndent = 0;
     }
 
@@ -463,7 +463,7 @@ void QGraphicsViewPrivate::recalculateContentSize()
     // scroll instead.
     if (oldLeftIndent != leftIndent || oldTopIndent != topIndent) {
         dirtyScroll = true;
-        q->viewport()->update();
+        updateAll();
     } else if (q->isRightToLeft() && !leftIndent) {
         // In reverse mode, the horizontal scroll always changes after the content
         // size has changed, as the scroll is calculated by summing the min and
@@ -489,7 +489,7 @@ void QGraphicsViewPrivate::centerView(QGraphicsView::ViewportAnchor anchor)
         if (q->underMouse()) {
             // Last scene pos: lastMouseMoveScenePoint
             // Current mouse pos:
-            QPointF transformationDiff = q->mapToScene(q->viewport()->rect().center())
+            QPointF transformationDiff = q->mapToScene(viewport->rect().center())
                                          - q->mapToScene(q->mapFromGlobal(QCursor::pos()));
             q->centerOn(lastMouseMoveScenePoint + transformationDiff);;
         } else {
@@ -511,7 +511,7 @@ void QGraphicsViewPrivate::centerView(QGraphicsView::ViewportAnchor anchor)
 void QGraphicsViewPrivate::updateLastCenterPoint()
 {
     Q_Q(QGraphicsView);
-    lastCenterPoint = q->mapToScene(q->viewport()->rect().center());
+    lastCenterPoint = q->mapToScene(viewport->rect().center());
 }
 
 /*!
@@ -549,15 +549,15 @@ void QGraphicsViewPrivate::updateScroll()
     scrollX = qint64(-leftIndent);
     if (q->isRightToLeft()) {
         if (!leftIndent) {
-            scrollX += q->horizontalScrollBar()->minimum();
-            scrollX += q->horizontalScrollBar()->maximum();
-            scrollX -= q->horizontalScrollBar()->value();
+            scrollX += hbar->minimum();
+            scrollX += hbar->maximum();
+            scrollX -= hbar->value();
         }
     } else {
-        scrollX += q->horizontalScrollBar()->value();
+        scrollX += hbar->value();
     }
 
-    scrollY = qint64(q->verticalScrollBar()->value() - topIndent);
+    scrollY = qint64(vbar->value() - topIndent);
 
     dirtyScroll = false;
 }
@@ -597,7 +597,7 @@ void QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent *event)
         return;
 
     QGraphicsSceneMouseEvent mouseEvent(QEvent::GraphicsSceneMouseMove);
-    mouseEvent.setWidget(q->viewport());
+    mouseEvent.setWidget(viewport);
     mouseEvent.setButtonDownScenePos(mousePressButton, mousePressScenePoint);
     mouseEvent.setButtonDownScreenPos(mousePressButton, mousePressScreenPoint);
     mouseEvent.setScenePos(q->mapToScene(event->pos()));
@@ -644,7 +644,7 @@ void QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent *event)
     if (hasStoredOriginalCursor) {
         // Restore the original viewport cursor.
         hasStoredOriginalCursor = false;
-        q->viewport()->setCursor(originalCursor);
+        viewport->setCursor(originalCursor);
     }
 #endif
 }
@@ -676,8 +676,6 @@ QRegion QGraphicsViewPrivate::rubberBandRegion(const QWidget *widget, const QRec
 #ifndef QT_NO_CURSOR
 void QGraphicsViewPrivate::_q_setViewportCursor(const QCursor &cursor)
 {
-    Q_Q(QGraphicsView);
-    QWidget *viewport = q->viewport();
     if (!hasStoredOriginalCursor) {
         hasStoredOriginalCursor = true;
         originalCursor = viewport->cursor();
@@ -703,9 +701,9 @@ void QGraphicsViewPrivate::_q_unsetViewportCursor()
     // Restore the original viewport cursor.
     hasStoredOriginalCursor = false;
     if (dragMode == QGraphicsView::ScrollHandDrag)
-        q->viewport()->setCursor(Qt::OpenHandCursor);
+        viewport->setCursor(Qt::OpenHandCursor);
     else
-        q->viewport()->setCursor(originalCursor);
+        viewport->setCursor(originalCursor);
 }
 #endif
 
@@ -744,7 +742,7 @@ void QGraphicsViewPrivate::populateSceneDragDropEvent(QGraphicsSceneDragDropEven
     dest->setProposedAction(source->proposedAction());
     dest->setDropAction(source->dropAction());
     dest->setMimeData(source->mimeData());
-    dest->setWidget(q->viewport());
+    dest->setWidget(viewport);
     dest->setSource(source->source());
 #else
     Q_UNUSED(dest)
@@ -835,7 +833,7 @@ void QGraphicsViewPrivate::processPendingUpdates()
 
     if (viewportUpdateMode == QGraphicsView::BoundingRectViewportUpdate) {
         if (optimizationFlags & QGraphicsView::DontAdjustForAntialiasing)
-            viewport->update(dirtyBoundingRect);
+            viewport->update(dirtyBoundingRect.adjusted(-1, -1, 1, 1));
         else
             viewport->update(dirtyBoundingRect.adjusted(-2, -2, 2, 2));
     } else {
@@ -846,45 +844,36 @@ void QGraphicsViewPrivate::processPendingUpdates()
     dirtyRegion = QRegion();
 }
 
-void QGraphicsViewPrivate::updateAll()
-{
-    Q_Q(QGraphicsView);
-    q->viewport()->update();
-    fullUpdatePending = true;
-    dirtyBoundingRect = QRect();
-    dirtyRegion = QRegion();
-}
-
 void QGraphicsViewPrivate::updateRegion(const QRegion &r)
 {
     if (r.isEmpty() || fullUpdatePending)
         return;
 
-    Q_Q(QGraphicsView);
-
     // Rect intersects viewport - update everything?
     switch (viewportUpdateMode) {
     case QGraphicsView::FullViewportUpdate:
         fullUpdatePending = true;
-        q->viewport()->update();
+        viewport->update();
         break;
     case QGraphicsView::BoundingRectViewportUpdate:
         dirtyBoundingRect |= r.boundingRect();
-        if (dirtyBoundingRect.contains(q->viewport()->rect())) {
+        if (dirtyBoundingRect.contains(viewport->rect())) {
             fullUpdatePending = true;
-            q->viewport()->update();
+            viewport->update();
         }
         break;
     case QGraphicsView::SmartViewportUpdate: // ### DEPRECATE
     case QGraphicsView::MinimalViewportUpdate:
-        if (optimizationFlags & QGraphicsView::DontAdjustForAntialiasing) {
-            dirtyRegion += r;
-        } else {
-            const QVector<QRect> &rects = r.rects();
-            for (int i = 0; i < rects.size(); ++i)
+    {
+        const QVector<QRect> &rects = r.rects();
+        for (int i = 0; i < rects.size(); ++i) {
+            if (optimizationFlags & QGraphicsView::DontAdjustForAntialiasing)
+                dirtyRegion += rects.at(i).adjusted(-1, -1, 1, 1);
+            else
                 dirtyRegion += rects.at(i).adjusted(-2, -2, 2, 2);
         }
         break;
+    }
     case QGraphicsView::NoViewportUpdate:
         // Unreachable
         break;
@@ -896,25 +885,23 @@ void QGraphicsViewPrivate::updateRect(const QRect &r)
     if (r.isEmpty() || fullUpdatePending)
         return;
 
-    Q_Q(QGraphicsView);
-
     // Rect intersects viewport - update everything?
     switch (viewportUpdateMode) {
     case QGraphicsView::FullViewportUpdate:
         fullUpdatePending = true;
-        q->viewport()->update();
+        viewport->update();
         break;
     case QGraphicsView::BoundingRectViewportUpdate:
         dirtyBoundingRect |= r;
-        if (dirtyBoundingRect.contains(q->viewport()->rect())) {
+        if (dirtyBoundingRect.contains(viewport->rect())) {
             fullUpdatePending = true;
-            q->viewport()->update();
+            viewport->update();
         }
         break;
     case QGraphicsView::SmartViewportUpdate: // ### DEPRECATE
     case QGraphicsView::MinimalViewportUpdate:
         if (optimizationFlags & QGraphicsView::DontAdjustForAntialiasing)
-            dirtyRegion += r;
+            dirtyRegion += r.adjusted(-1, -1, 1, 1);
         else
             dirtyRegion += r.adjusted(-2, -2, 2, 2);
         break;
@@ -1112,7 +1099,7 @@ void QGraphicsView::setRenderHints(QPainter::RenderHints hints)
     if (hints == d->renderHints)
         return;
     d->renderHints = hints;
-    viewport()->update();
+    d->updateAll();
 }
 
 /*!
@@ -1130,7 +1117,7 @@ void QGraphicsView::setRenderHint(QPainter::RenderHint hint, bool enabled)
     else
         d->renderHints &= ~hint;
     if (oldHints != d->renderHints)
-        viewport()->update();
+        d->updateAll();
 }
 
 /*!
@@ -1417,7 +1404,7 @@ void QGraphicsView::resetCachedContent()
     if (d->cacheMode & CacheBackground) {
         // Background caching is enabled.
         d->mustResizeBackgroundPixmap = true;
-        viewport()->update();
+        d->updateAll();
     } else if (d->mustResizeBackgroundPixmap) {
         // Background caching is disabled.
         // Cleanup, free some resources.
@@ -1506,7 +1493,7 @@ void QGraphicsView::setScene(QGraphicsScene *scene)
         return;
 
     // Always update the viewport when the scene changes.
-    viewport()->update();
+    d->updateAll();
 
     // Remove the previously assigned scene.
     if (d->scene) {
@@ -2466,7 +2453,7 @@ void QGraphicsView::setBackgroundBrush(const QBrush &brush)
 {
     Q_D(QGraphicsView);
     d->backgroundBrush = brush;
-    viewport()->update();
+    d->updateAll();
 
     if (d->cacheMode & CacheBackground) {
         // Invalidate the background pixmap
@@ -2496,7 +2483,7 @@ void QGraphicsView::setForegroundBrush(const QBrush &brush)
 {
     Q_D(QGraphicsView);
     d->foregroundBrush = brush;
-    viewport()->update();
+    d->updateAll();
 }
 
 /*!
@@ -2726,6 +2713,7 @@ bool QGraphicsView::viewportEvent(QEvent *event)
     case QEvent::Paint:
         // Reset full update
         d->fullUpdatePending = false;
+        d->dirtyScrollOffset = QPoint();
         if (d->scene) {
             // Check if this view reimplements the updateScene slot; if it
             // does, we can't do direct update delivery and have to fall back
@@ -3130,7 +3118,7 @@ void QGraphicsView::mouseMoveEvent(QMouseEvent *event)
                 if (d->viewportUpdateMode != FullViewportUpdate)
                     viewport()->update(d->rubberBandRegion(viewport(), d->rubberBandRect));
                 else
-                    viewport()->update();
+                    d->updateAll();
             }
 
             // Stop rubber banding if the user has let go of all buttons (even
@@ -3152,7 +3140,7 @@ void QGraphicsView::mouseMoveEvent(QMouseEvent *event)
                 if (d->viewportUpdateMode != FullViewportUpdate)
                     viewport()->update(d->rubberBandRegion(viewport(), d->rubberBandRect));
                 else
-                    viewport()->update();
+                    d->updateAll();
             }
             // Set the new selection area
             QPainterPath selectionArea;
@@ -3195,7 +3183,7 @@ void QGraphicsView::mouseReleaseEvent(QMouseEvent *event)
                 if (d->viewportUpdateMode != FullViewportUpdate)
                     viewport()->update(d->rubberBandRegion(viewport(), d->rubberBandRect));
                 else
-                    viewport()->update();
+                    d->updateAll();
             }
             d->rubberBanding = false;
             d->rubberBandRect = QRect();
@@ -3306,7 +3294,6 @@ void QGraphicsView::paintEvent(QPaintEvent *event)
 
     // Set up the painter
     QPainter painter(viewport());
-    QTransform original = painter.worldTransform();
 #ifndef QT_NO_RUBBERBAND
     if (d->rubberBanding && !d->rubberBandRect.isEmpty())
         painter.save();
@@ -3317,7 +3304,7 @@ void QGraphicsView::paintEvent(QPaintEvent *event)
 
     // Set up viewport transform
     const QTransform viewTransform = viewportTransform();
-    painter.setTransform(viewTransform, true);
+    painter.setWorldTransform(viewTransform);
 
     // Draw background
     if ((d->cacheMode & CacheBackground)
@@ -3349,10 +3336,9 @@ void QGraphicsView::paintEvent(QPaintEvent *event)
         }
 
         // Blit the background from the background pixmap
-        QTransform oldMatrix = painter.worldTransform();
-        painter.setWorldTransform(original);
+        painter.setWorldTransform(QTransform());
         painter.drawPixmap(QPoint(), d->backgroundPixmap);
-        painter.setWorldTransform(oldMatrix);
+        painter.setWorldTransform(viewTransform);
     } else {
         if (!(d->optimizationFlags & DontSavePainterState))
             painter.save();
@@ -3453,7 +3439,6 @@ void QGraphicsView::scrollContentsBy(int dx, int dy)
 
     if (d->viewportUpdateMode != QGraphicsView::NoViewportUpdate) {
         if (d->viewportUpdateMode != QGraphicsView::FullViewportUpdate) {
-            d->dirtyRegion.translate(dx, dy);
             if (d->accelerateScrolling) {
 #ifndef QT_NO_RUBBERBAND
                 // Update new and old rubberband regions
@@ -3463,12 +3448,15 @@ void QGraphicsView::scrollContentsBy(int dx, int dy)
                     viewport()->update(rubberBandRegion);
                 }
 #endif
+                d->dirtyScrollOffset.rx() += dx;
+                d->dirtyScrollOffset.ry() += dy;
+                d->dirtyRegion.translate(dx, dy);
                 viewport()->scroll(dx, dy);
             } else {
-                viewport()->update();
+                d->updateAll();
             }
         } else {
-            viewport()->update();
+            d->updateAll();
         }
     }
 
@@ -3681,7 +3669,7 @@ void QGraphicsView::setTransform(const QTransform &matrix, bool combine )
     d->transforming = false;
 
     // Any matrix operation requires a full update.
-    viewport()->update();
+    d->updateAll();
 }
 
 /*!
diff --git a/src/gui/graphicsview/qgraphicsview_p.h b/src/gui/graphicsview/qgraphicsview_p.h
index 6138d0a..880aeef 100644
--- a/src/gui/graphicsview/qgraphicsview_p.h
+++ b/src/gui/graphicsview/qgraphicsview_p.h
@@ -94,6 +94,7 @@ public:
     QPoint mousePressScreenPoint;
     QPointF lastMouseMoveScenePoint;
     QPoint lastMouseMoveScreenPoint;
+    QPoint dirtyScrollOffset;
     Qt::MouseButton mousePressButton;
     QTransform matrix;
     bool identityMatrix;
@@ -163,7 +164,13 @@ public:
     QRegion dirtyRegion;
     QRect dirtyBoundingRect;
     void processPendingUpdates();
-    void updateAll();
+    inline void updateAll()
+    {
+        viewport->update();
+        fullUpdatePending = true;
+        dirtyBoundingRect = QRect();
+        dirtyRegion = QRegion();
+    }
     void updateRect(const QRect &rect);
     void updateRegion(const QRegion &region);
     bool updateSceneSlotReimplementedChecked;
diff --git a/src/gui/graphicsview/qgraphicswidget.cpp b/src/gui/graphicsview/qgraphicswidget.cpp
index 7314167..419277d 100644
--- a/src/gui/graphicsview/qgraphicswidget.cpp
+++ b/src/gui/graphicsview/qgraphicswidget.cpp
@@ -170,94 +170,13 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
-    \property QGraphicsWidget::enabled
-    \brief whether the item is enabled or not
-
-    This property is declared in QGraphicsItem.
-
-    By default, this property is true.
-
-    \sa QGraphicsItem::isEnabled(), QGraphicsItem::setEnabled()
-*/
-
-/*!
-    \property QGraphicsWidget::visible
-    \brief whether the item is visible or not
-
-    This property is declared in QGraphicsItem.
-
-    By default, this property is true.
-
-    \sa QGraphicsItem::isVisible(), QGraphicsItem::setVisible(), show(),
-    hide()
-*/
-
-/*!
-    \property QGraphicsWidget::opacity
-    \brief the opacity of the widget
-*/    
-
-/*!
-    \property QGraphicsWidget::pos
-    \brief the position of the widget
-*/
-
-/*!
-    \property QGraphicsWidget::xRotation
-    \since 4.6
-    \brief the rotation angle in degrees around the X axis
-*/
-
-/*!
-    \property QGraphicsWidget::yRotation
-    \since 4.6
-    \brief the rotation angle in degrees around the Y axis
-*/
-
-/*!
-    \property QGraphicsWidget::zRotation
-    \since 4.6
-    \brief the rotation angle in degrees around the Z axis
-*/
-
-/*!
-    \property QGraphicsWidget::xScale
-    \since 4.6
-    \brief the scale factor on the X axis.
-*/
-
-/*!
-    \property QGraphicsWidget::yScale
-    \since 4.6
-    \brief the scale factor on the Y axis.
-*/
-
-/*!
-    \property QGraphicsWidget::horizontalShear
-    \since 4.6
-    \brief the horizontal shear.
-*/
-
-/*!
-    \property QGraphicsWidget::verticalShear
-    \since 4.6
-    \brief the vertical shear.
-*/
-
-/*!
-    \property QGraphicsWidget::transformOrigin
-    \since 4.6
-    \brief the transformation origin for the transformation properties.
-*/
-
-/*!
     Constructs a QGraphicsWidget instance. The optional \a parent argument is
     passed to QGraphicsItem's constructor. The optional \a wFlags argument
     specifies the widget's window flags (e.g., whether the widget should be a
     window, a tool, a popup, etc).
 */
 QGraphicsWidget::QGraphicsWidget(QGraphicsItem *parent, Qt::WindowFlags wFlags)
-    : QGraphicsItem(*new QGraphicsWidgetPrivate, 0, 0), QGraphicsLayoutItem(0, false)
+    : QGraphicsObject(*new QGraphicsWidgetPrivate, 0, 0), QGraphicsLayoutItem(0, false)
 {
     Q_D(QGraphicsWidget);
     d->init(parent, wFlags);
@@ -269,7 +188,7 @@ QGraphicsWidget::QGraphicsWidget(QGraphicsItem *parent, Qt::WindowFlags wFlags)
     Constructs a new QGraphicsWidget, using \a dd as parent.
 */
 QGraphicsWidget::QGraphicsWidget(QGraphicsWidgetPrivate &dd, QGraphicsItem *parent, QGraphicsScene *scene, Qt::WindowFlags wFlags)
-    : QGraphicsItem(dd, 0, scene), QGraphicsLayoutItem(0, false)
+    : QGraphicsObject(dd, 0, scene), QGraphicsLayoutItem(0, false)
 {
     Q_D(QGraphicsWidget);
     d->init(parent, wFlags);
diff --git a/src/gui/graphicsview/qgraphicswidget.h b/src/gui/graphicsview/qgraphicswidget.h
index a5c9068..337490c 100644
--- a/src/gui/graphicsview/qgraphicswidget.h
+++ b/src/gui/graphicsview/qgraphicswidget.h
@@ -66,7 +66,7 @@ class QStyleOption;
 
 class QGraphicsWidgetPrivate;
 
-class Q_GUI_EXPORT QGraphicsWidget : public QObject, public QGraphicsItem, public QGraphicsLayoutItem
+class Q_GUI_EXPORT QGraphicsWidget : public QGraphicsObject, public QGraphicsLayoutItem
 {
     Q_OBJECT
     Q_PROPERTY(QPalette palette READ palette WRITE setPalette)
@@ -74,12 +74,8 @@ class Q_GUI_EXPORT QGraphicsWidget : public QObject, public QGraphicsItem, publi
     Q_PROPERTY(Qt::LayoutDirection layoutDirection READ layoutDirection WRITE setLayoutDirection RESET unsetLayoutDirection)
     Q_PROPERTY(QSizeF size READ size WRITE resize)
     Q_PROPERTY(Qt::FocusPolicy focusPolicy READ focusPolicy WRITE setFocusPolicy)
-    Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled)
-    Q_PROPERTY(bool visible READ isVisible WRITE setVisible)
     Q_PROPERTY(Qt::WindowFlags windowFlags READ windowFlags WRITE setWindowFlags)
     Q_PROPERTY(QString windowTitle READ windowTitle WRITE setWindowTitle)
-    Q_PROPERTY(qreal opacity READ opacity WRITE setOpacity)
-    Q_PROPERTY(QPointF pos READ pos WRITE setPos)
     Q_PROPERTY(QRectF geometry READ geometry WRITE setGeometry)
     Q_PROPERTY(QPointF transformOrigin READ transformOrigin WRITE setTransformOrigin)
     Q_PROPERTY(qreal xRotation READ xRotation WRITE setXRotation)
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index f24aeff..7e262b1 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -304,7 +304,7 @@ QPixmap QPixmapIconEngine::pixmap(const QSize &size, QIcon::Mode mode, QIcon::St
     QString key = QLatin1String("$qt_icon_")
                   + QString::number(pm.cacheKey())
                   + QString::number(pe->mode)
-                  + QString::number(qApp->palette().cacheKey())
+                  + QString::number(QApplication::palette().cacheKey())
                   + QLatin1Char('_')
                   + QString::number(actualSize.width())
                   + QLatin1Char('_')
diff --git a/src/gui/inputmethod/qinputcontext.cpp b/src/gui/inputmethod/qinputcontext.cpp
index f78b86a..8db326b 100644
--- a/src/gui/inputmethod/qinputcontext.cpp
+++ b/src/gui/inputmethod/qinputcontext.cpp
@@ -262,7 +262,7 @@ void QInputContext::sendEvent(const QInputMethodEvent &event)
 	return;
 
     QInputMethodEvent e(event);
-    qApp->sendEvent(focus, &e);
+    QApplication::sendEvent(focus, &e);
 }
 
 
@@ -408,7 +408,7 @@ QList<QAction *> QInputContext::actions()
 QTextFormat QInputContext::standardFormat(StandardFormat s) const
 {
     QWidget *focus = focusWidget();
-    const QPalette &pal = focus ? focus->palette() : qApp->palette();
+    const QPalette &pal = focus ? focus->palette() : QApplication::palette();
 
     QTextCharFormat fmt;
     QColor bg;
diff --git a/src/gui/inputmethod/qwininputcontext_win.cpp b/src/gui/inputmethod/qwininputcontext_win.cpp
index dd966d5..b94c604 100644
--- a/src/gui/inputmethod/qwininputcontext_win.cpp
+++ b/src/gui/inputmethod/qwininputcontext_win.cpp
@@ -539,7 +539,7 @@ bool QWinInputContext::endComposition()
     }
 
     if (!fw)
-        fw = qApp->focusWidget();
+        fw = QApplication::focusWidget();
 
     if (fw) {
         QInputMethodEvent e;
@@ -637,7 +637,7 @@ bool QWinInputContext::composition(LPARAM lParam)
         // bogus event
         return true;
 
-    QWidget *fw = qApp->focusWidget();
+    QWidget *fw = QApplication::focusWidget();
     if (fw) {
         Q_ASSERT(fw->testAttribute(Qt::WA_WState_Created));
         HIMC imc = getContext(fw->effectiveWinId());
diff --git a/src/gui/itemviews/qabstractitemview.cpp b/src/gui/itemviews/qabstractitemview.cpp
index d353c2d..9effc70 100644
--- a/src/gui/itemviews/qabstractitemview.cpp
+++ b/src/gui/itemviews/qabstractitemview.cpp
@@ -108,16 +108,16 @@ void QAbstractItemViewPrivate::init()
     Q_Q(QAbstractItemView);
     q->setItemDelegate(new QStyledItemDelegate(q));
 
-    q->verticalScrollBar()->setRange(0, 0);
-    q->horizontalScrollBar()->setRange(0, 0);
+    vbar->setRange(0, 0);
+    hbar->setRange(0, 0);
 
-    QObject::connect(q->verticalScrollBar(), SIGNAL(actionTriggered(int)),
+    QObject::connect(vbar, SIGNAL(actionTriggered(int)),
                      q, SLOT(verticalScrollbarAction(int)));
-    QObject::connect(q->horizontalScrollBar(), SIGNAL(actionTriggered(int)),
+    QObject::connect(hbar, SIGNAL(actionTriggered(int)),
                      q, SLOT(horizontalScrollbarAction(int)));
-    QObject::connect(q->verticalScrollBar(), SIGNAL(valueChanged(int)),
+    QObject::connect(vbar, SIGNAL(valueChanged(int)),
                      q, SLOT(verticalScrollbarValueChanged(int)));
-    QObject::connect(q->horizontalScrollBar(), SIGNAL(valueChanged(int)),
+    QObject::connect(hbar, SIGNAL(valueChanged(int)),
                      q, SLOT(horizontalScrollbarValueChanged(int)));
 
     viewport->setBackgroundRole(QPalette::Base);
@@ -3784,7 +3784,7 @@ void QAbstractItemViewPrivate::clearOrRemove()
 void QAbstractItemViewPrivate::checkPersistentEditorFocus()
 {
     Q_Q(QAbstractItemView);
-    if (QWidget *widget = qApp->focusWidget()) {
+    if (QWidget *widget = QApplication::focusWidget()) {
         if (persistent.contains(widget)) {
             //a persistent editor has gained the focus
             QModelIndex index = indexForEditor(widget);
diff --git a/src/gui/itemviews/qabstractitemview_p.h b/src/gui/itemviews/qabstractitemview_p.h
index 139d0b7..8594ad7 100644
--- a/src/gui/itemviews/qabstractitemview_p.h
+++ b/src/gui/itemviews/qabstractitemview_p.h
@@ -99,7 +99,7 @@ public:
     QVariant data(const QModelIndex &, int) const { return QVariant(); }
 };
 
-class QAbstractItemViewPrivate : public QAbstractScrollAreaPrivate
+class Q_AUTOTEST_EXPORT QAbstractItemViewPrivate : public QAbstractScrollAreaPrivate
 {
     Q_DECLARE_PUBLIC(QAbstractItemView)
 
diff --git a/src/gui/itemviews/qcolumnview.cpp b/src/gui/itemviews/qcolumnview.cpp
index 4fb08bb..16ae8e9 100644
--- a/src/gui/itemviews/qcolumnview.cpp
+++ b/src/gui/itemviews/qcolumnview.cpp
@@ -108,9 +108,9 @@ void QColumnViewPrivate::initialize()
 {
     Q_Q(QColumnView);
     q->setTextElideMode(Qt::ElideMiddle);
-    q->connect(&currentAnimation, SIGNAL(frameChanged(int)),
-            q->horizontalScrollBar(), SLOT(setValue(int)));
-    q->connect(&currentAnimation, SIGNAL(finished()), q, SLOT(_q_changeCurrentColumn()));
+    QObject::connect(&currentAnimation, SIGNAL(frameChanged(int)),
+            hbar, SLOT(setValue(int)));
+    QObject::connect(&currentAnimation, SIGNAL(finished()), q, SLOT(_q_changeCurrentColumn()));
     delete itemDelegate;
     q->setItemDelegate(new QColumnViewDelegate(q));
 }
@@ -421,23 +421,23 @@ void QColumnViewPrivate::updateScrollbars()
             horizontalLength = (columns.first()->x() + columns.first()->width()) - columns.last()->x();
     }
 
-    QSize viewportSize = q->viewport()->size();
-    if (horizontalLength < viewportSize.width() && q->horizontalScrollBar()->value() == 0) {
-        q->horizontalScrollBar()->setRange(0, 0);
+    QSize viewportSize = viewport->size();
+    if (horizontalLength < viewportSize.width() && hbar->value() == 0) {
+        hbar->setRange(0, 0);
     } else {
         int visibleLength = qMin(horizontalLength + q->horizontalOffset(), viewportSize.width());
         int hiddenLength = horizontalLength - visibleLength;
-        if (hiddenLength != q->horizontalScrollBar()->maximum())
-            q->horizontalScrollBar()->setRange(0, hiddenLength);
+        if (hiddenLength != hbar->maximum())
+            hbar->setRange(0, hiddenLength);
     }
     if (!columns.isEmpty()) {
         int pageStepSize = columns.at(0)->width();
-        if (pageStepSize != q->horizontalScrollBar()->pageStep())
-            q->horizontalScrollBar()->setPageStep(pageStepSize);
+        if (pageStepSize != hbar->pageStep())
+            hbar->setPageStep(pageStepSize);
     }
-    bool visible = (q->horizontalScrollBar()->maximum() > 0);
-    if (visible != q->horizontalScrollBar()->isVisible())
-        q->horizontalScrollBar()->setVisible(visible);
+    bool visible = (hbar->maximum() > 0);
+    if (visible != hbar->isVisible())
+        hbar->setVisible(visible);
 }
 
 /*!
@@ -696,7 +696,7 @@ QAbstractItemView *QColumnViewPrivate::createColumn(const QModelIndex &index, bo
             q, SIGNAL(pressed(const QModelIndex &)));
 
     view->setFocusPolicy(Qt::NoFocus);
-    view->setParent(q->viewport());
+    view->setParent(viewport);
     Q_ASSERT(view);
 
     // Setup corner grip
@@ -707,13 +707,13 @@ QAbstractItemView *QColumnViewPrivate::createColumn(const QModelIndex &index, bo
     }
 
     if (columnSizes.count() > columns.count()) {
-        view->setGeometry(0, 0, columnSizes.at(columns.count()), q->viewport()->height());
+        view->setGeometry(0, 0, columnSizes.at(columns.count()), viewport->height());
     } else {
         int initialWidth = view->sizeHint().width();
         if (q->isRightToLeft())
-            view->setGeometry(q->viewport()->width() - initialWidth, 0, initialWidth, q->viewport()->height());
+            view->setGeometry(viewport->width() - initialWidth, 0, initialWidth, viewport->height());
         else
-            view->setGeometry(0, 0, initialWidth, q->viewport()->height());
+            view->setGeometry(0, 0, initialWidth, viewport->height());
         columnSizes.resize(qMax(columnSizes.count(), columns.count() + 1));
         columnSizes[columns.count()] = initialWidth;
     }
@@ -1056,11 +1056,11 @@ void QColumnViewPrivate::doLayout()
     if (!model || columns.isEmpty())
         return;
 
-    int viewportHeight = q->viewport()->height();
+    int viewportHeight = viewport->height();
     int x = columns.at(0)->x();
 
     if (q->isRightToLeft()) {
-        x = q->viewport()->width() + q->horizontalOffset();
+        x = viewport->width() + q->horizontalOffset();
         for (int i = 0; i < columns.size(); ++i) {
             QAbstractItemView *view = columns.at(i);
             x -= view->width();
@@ -1116,7 +1116,7 @@ void QColumnViewDelegate::paint(QPainter *painter,
     // Draw >
     if (index.model()->hasChildren(index)) {
         const QWidget *view = opt.widget;
-        QStyle *style = view ? view->style() : qApp->style();
+        QStyle *style = view ? view->style() : QApplication::style();
         style->drawPrimitive(QStyle::PE_IndicatorColumnViewArrow, &opt, painter, view);
     }
 }
diff --git a/src/gui/itemviews/qheaderview.cpp b/src/gui/itemviews/qheaderview.cpp
index 7ad825a..d0321d8 100644
--- a/src/gui/itemviews/qheaderview.cpp
+++ b/src/gui/itemviews/qheaderview.cpp
@@ -3474,11 +3474,10 @@ void QHeaderViewPrivate::setGlobalHeaderResizeMode(QHeaderView::ResizeMode mode)
 
 int QHeaderViewPrivate::viewSectionSizeHint(int logical) const
 {
-    Q_Q(const QHeaderView);
-    if (QAbstractItemView *parent = qobject_cast<QAbstractItemView*>(q->parent())) {
+    if (QAbstractItemView *view = qobject_cast<QAbstractItemView*>(parent)) {
         return (orientation == Qt::Horizontal
-                ? parent->sizeHintForColumn(logical)
-                : parent->sizeHintForRow(logical));
+                ? view->sizeHintForColumn(logical)
+                : view->sizeHintForRow(logical));
     }
     return 0;
 }
diff --git a/src/gui/itemviews/qlistview.cpp b/src/gui/itemviews/qlistview.cpp
index 03ba641..fe7916c 100644
--- a/src/gui/itemviews/qlistview.cpp
+++ b/src/gui/itemviews/qlistview.cpp
@@ -610,7 +610,7 @@ int QListViewPrivate::horizontalScrollToValue(const QModelIndex &index, const QR
     const bool rightOf = q->isRightToLeft()
                          ? rect.right() > area.right()
                          : (rect.right() > area.right()) && (rect.left() > area.left());
-    int horizontalValue = q->horizontalScrollBar()->value();
+    int horizontalValue = hbar->value();
 
     // ScrollPerItem
     if (q->horizontalScrollMode() == QAbstractItemView::ScrollPerItem && viewMode == QListView::ListMode) {
@@ -652,10 +652,10 @@ int QListViewPrivate::verticalScrollToValue(const QModelIndex &index, const QRec
     const bool above = (hint == QListView::EnsureVisible && rect.top() < area.top());
     const bool below = (hint == QListView::EnsureVisible && rect.bottom() > area.bottom());
 
-    int verticalValue = q->verticalScrollBar()->value();
+    int verticalValue = vbar->value();
 
     // ScrollPerItem
-    if (q->verticalScrollMode() == QAbstractItemView::ScrollPerItem && viewMode == QListView::ListMode) {
+    if (verticalScrollMode == QAbstractItemView::ScrollPerItem && viewMode == QListView::ListMode) {
         const QListViewItem item = indexToListViewItem(index);
         const QRect rect = q->visualRect(index);
         verticalValue = staticListView->verticalPerItemValue(itemIndex(item),
@@ -1972,10 +1972,10 @@ void QListViewPrivate::prepareItemsLayout()
     // Qt::ScrollBarAlwaysOn but scrollbar extent must be deduced if policy
     // is Qt::ScrollBarAsNeeded
     int verticalMargin = vbarpolicy==Qt::ScrollBarAsNeeded
-        ? q->style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, q->verticalScrollBar()) + frameAroundContents
+        ? q->style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, vbar) + frameAroundContents
         : 0;
     int horizontalMargin =  hbarpolicy==Qt::ScrollBarAsNeeded
-        ? q->style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, q->horizontalScrollBar()) + frameAroundContents
+        ? q->style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, hbar) + frameAroundContents
         : 0;
 
     layoutBounds.adjust(0, 0, -verticalMargin, -horizontalMargin);
diff --git a/src/gui/itemviews/qlistwidget.cpp b/src/gui/itemviews/qlistwidget.cpp
index 504908f..51861b3 100644
--- a/src/gui/itemviews/qlistwidget.cpp
+++ b/src/gui/itemviews/qlistwidget.cpp
@@ -1020,51 +1020,51 @@ void QListWidgetPrivate::setup()
     QObject::connect(q, SIGNAL(activated(QModelIndex)),
                      q, SLOT(_q_emitItemActivated(QModelIndex)));
     QObject::connect(q, SIGNAL(entered(QModelIndex)), q, SLOT(_q_emitItemEntered(QModelIndex)));
-    QObject::connect(model(), SIGNAL(dataChanged(QModelIndex,QModelIndex)),
+    QObject::connect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
                      q, SLOT(_q_emitItemChanged(QModelIndex)));
     QObject::connect(q->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
                      q, SLOT(_q_emitCurrentItemChanged(QModelIndex,QModelIndex)));
     QObject::connect(q->selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
                      q, SIGNAL(itemSelectionChanged()));
-    QObject::connect(model(), SIGNAL(dataChanged(QModelIndex,QModelIndex)),
+    QObject::connect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
                      q, SLOT(_q_dataChanged(QModelIndex,QModelIndex)));
-    QObject::connect(model(), SIGNAL(columnsRemoved(QModelIndex,int,int)), q, SLOT(_q_sort()));
+    QObject::connect(model, SIGNAL(columnsRemoved(QModelIndex,int,int)), q, SLOT(_q_sort()));
 }
 
 void QListWidgetPrivate::_q_emitItemPressed(const QModelIndex &index)
 {
     Q_Q(QListWidget);
-    emit q->itemPressed(model()->at(index.row()));
+    emit q->itemPressed(listModel()->at(index.row()));
 }
 
 void QListWidgetPrivate::_q_emitItemClicked(const QModelIndex &index)
 {
     Q_Q(QListWidget);
-    emit q->itemClicked(model()->at(index.row()));
+    emit q->itemClicked(listModel()->at(index.row()));
 }
 
 void QListWidgetPrivate::_q_emitItemDoubleClicked(const QModelIndex &index)
 {
     Q_Q(QListWidget);
-    emit q->itemDoubleClicked(model()->at(index.row()));
+    emit q->itemDoubleClicked(listModel()->at(index.row()));
 }
 
 void QListWidgetPrivate::_q_emitItemActivated(const QModelIndex &index)
 {
     Q_Q(QListWidget);
-    emit q->itemActivated(model()->at(index.row()));
+    emit q->itemActivated(listModel()->at(index.row()));
 }
 
 void QListWidgetPrivate::_q_emitItemEntered(const QModelIndex &index)
 {
     Q_Q(QListWidget);
-    emit q->itemEntered(model()->at(index.row()));
+    emit q->itemEntered(listModel()->at(index.row()));
 }
 
 void QListWidgetPrivate::_q_emitItemChanged(const QModelIndex &index)
 {
     Q_Q(QListWidget);
-    emit q->itemChanged(model()->at(index.row()));
+    emit q->itemChanged(listModel()->at(index.row()));
 }
 
 void QListWidgetPrivate::_q_emitCurrentItemChanged(const QModelIndex &current,
@@ -1072,8 +1072,8 @@ void QListWidgetPrivate::_q_emitCurrentItemChanged(const QModelIndex &current,
 {
     Q_Q(QListWidget);
     QPersistentModelIndex persistentCurrent = current;
-    QListWidgetItem *currentItem = model()->at(persistentCurrent.row());
-    emit q->currentItemChanged(currentItem, model()->at(previous.row()));
+    QListWidgetItem *currentItem = listModel()->at(persistentCurrent.row());
+    emit q->currentItemChanged(currentItem, listModel()->at(previous.row()));
 
     //persistentCurrent is invalid if something changed the model in response
     //to the currentItemChanged signal emission and the item was removed
@@ -1088,14 +1088,14 @@ void QListWidgetPrivate::_q_emitCurrentItemChanged(const QModelIndex &current,
 void QListWidgetPrivate::_q_sort()
 {
     if (sortingEnabled)
-        model()->sort(0, sortOrder);
+        model->sort(0, sortOrder);
 }
 
 void QListWidgetPrivate::_q_dataChanged(const QModelIndex &topLeft,
                                         const QModelIndex &bottomRight)
 {
     if (sortingEnabled && topLeft.isValid() && bottomRight.isValid())
-        model()->ensureSorted(topLeft.column(), sortOrder,
+        listModel()->ensureSorted(topLeft.column(), sortOrder,
                               topLeft.row(), bottomRight.row());
 }
 
@@ -1308,9 +1308,9 @@ QListWidget::~QListWidget()
 QListWidgetItem *QListWidget::item(int row) const
 {
     Q_D(const QListWidget);
-    if (row < 0 || row >= d->model()->rowCount())
+    if (row < 0 || row >= d->model->rowCount())
         return 0;
-    return d->model()->at(row);
+    return d->listModel()->at(row);
 }
 
 /*!
@@ -1322,7 +1322,7 @@ QListWidgetItem *QListWidget::item(int row) const
 int QListWidget::row(const QListWidgetItem *item) const
 {
     Q_D(const QListWidget);
-    return d->model()->index(const_cast<QListWidgetItem*>(item)).row();
+    return d->listModel()->index(const_cast<QListWidgetItem*>(item)).row();
 }
 
 
@@ -1336,7 +1336,7 @@ void QListWidget::insertItem(int row, QListWidgetItem *item)
 {
     Q_D(QListWidget);
     if (item && !item->view)
-        d->model()->insert(row, item);
+        d->listModel()->insert(row, item);
 }
 
 /*!
@@ -1349,7 +1349,7 @@ void QListWidget::insertItem(int row, QListWidgetItem *item)
 void QListWidget::insertItem(int row, const QString &label)
 {
     Q_D(QListWidget);
-    d->model()->insert(row, new QListWidgetItem(label));
+    d->listModel()->insert(row, new QListWidgetItem(label));
 }
 
 /*!
@@ -1362,7 +1362,7 @@ void QListWidget::insertItem(int row, const QString &label)
 void QListWidget::insertItems(int row, const QStringList &labels)
 {
     Q_D(QListWidget);
-    d->model()->insert(row, labels);
+    d->listModel()->insert(row, labels);
 }
 
 /*!
@@ -1378,9 +1378,9 @@ void QListWidget::insertItems(int row, const QStringList &labels)
 QListWidgetItem *QListWidget::takeItem(int row)
 {
     Q_D(QListWidget);
-    if (row < 0 || row >= d->model()->rowCount())
+    if (row < 0 || row >= d->model->rowCount())
         return 0;
-    return d->model()->take(row);
+    return d->listModel()->take(row);
 }
 
 /*!
@@ -1391,7 +1391,7 @@ QListWidgetItem *QListWidget::takeItem(int row)
 int QListWidget::count() const
 {
     Q_D(const QListWidget);
-    return d->model()->rowCount();
+    return d->model->rowCount();
 }
 
 /*!
@@ -1400,7 +1400,7 @@ int QListWidget::count() const
 QListWidgetItem *QListWidget::currentItem() const
 {
     Q_D(const QListWidget);
-    return d->model()->at(currentIndex().row());
+    return d->listModel()->at(currentIndex().row());
 }
 
 
@@ -1438,7 +1438,7 @@ int QListWidget::currentRow() const
 void QListWidget::setCurrentRow(int row)
 {
     Q_D(QListWidget);
-    QModelIndex index = d->model()->index(row);
+    QModelIndex index = d->listModel()->index(row);
     if (d->selectionMode == SingleSelection)
         selectionModel()->setCurrentIndex(index, QItemSelectionModel::ClearAndSelect);
     else if (d->selectionMode == NoSelection)
@@ -1455,7 +1455,7 @@ void QListWidget::setCurrentRow(int row)
 void QListWidget::setCurrentRow(int row, QItemSelectionModel::SelectionFlags command)
 {
     Q_D(QListWidget);
-    d->selectionModel->setCurrentIndex(d->model()->index(row), command);
+    d->selectionModel->setCurrentIndex(d->listModel()->index(row), command);
 }
 
 /*!
@@ -1464,7 +1464,7 @@ void QListWidget::setCurrentRow(int row, QItemSelectionModel::SelectionFlags com
 QListWidgetItem *QListWidget::itemAt(const QPoint &p) const
 {
     Q_D(const QListWidget);
-    return d->model()->at(indexAt(p).row());
+    return d->listModel()->at(indexAt(p).row());
 
 }
 
@@ -1482,7 +1482,7 @@ QListWidgetItem *QListWidget::itemAt(const QPoint &p) const
 QRect QListWidget::visualItemRect(const QListWidgetItem *item) const
 {
     Q_D(const QListWidget);
-    QModelIndex index = d->model()->index(const_cast<QListWidgetItem*>(item));
+    QModelIndex index = d->listModel()->index(const_cast<QListWidgetItem*>(item));
     return visualRect(index);
 }
 
@@ -1493,7 +1493,7 @@ void QListWidget::sortItems(Qt::SortOrder order)
 {
     Q_D(QListWidget);
     d->sortOrder = order;
-    d->model()->sort(0, order);
+    d->listModel()->sort(0, order);
 }
 
 /*!
@@ -1532,7 +1532,7 @@ Qt::SortOrder QListWidget::sortOrder() const
 void QListWidget::editItem(QListWidgetItem *item)
 {
     Q_D(QListWidget);
-    edit(d->model()->index(item));
+    edit(d->listModel()->index(item));
 }
 
 /*!
@@ -1543,7 +1543,7 @@ void QListWidget::editItem(QListWidgetItem *item)
 void QListWidget::openPersistentEditor(QListWidgetItem *item)
 {
     Q_D(QListWidget);
-    QModelIndex index = d->model()->index(item);
+    QModelIndex index = d->listModel()->index(item);
     QAbstractItemView::openPersistentEditor(index);
 }
 
@@ -1555,7 +1555,7 @@ void QListWidget::openPersistentEditor(QListWidgetItem *item)
 void QListWidget::closePersistentEditor(QListWidgetItem *item)
 {
     Q_D(QListWidget);
-    QModelIndex index = d->model()->index(item);
+    QModelIndex index = d->listModel()->index(item);
     QAbstractItemView::closePersistentEditor(index);
 }
 
@@ -1567,7 +1567,7 @@ void QListWidget::closePersistentEditor(QListWidgetItem *item)
 QWidget *QListWidget::itemWidget(QListWidgetItem *item) const
 {
     Q_D(const QListWidget);
-    QModelIndex index = d->model()->index(item);
+    QModelIndex index = d->listModel()->index(item);
     return QAbstractItemView::indexWidget(index);
 }
 
@@ -1585,7 +1585,7 @@ QWidget *QListWidget::itemWidget(QListWidgetItem *item) const
 void QListWidget::setItemWidget(QListWidgetItem *item, QWidget *widget)
 {
     Q_D(QListWidget);
-    QModelIndex index = d->model()->index(item);
+    QModelIndex index = d->listModel()->index(item);
     QAbstractItemView::setIndexWidget(index, widget);
 }
 
@@ -1599,7 +1599,7 @@ void QListWidget::setItemWidget(QListWidgetItem *item, QWidget *widget)
 bool QListWidget::isItemSelected(const QListWidgetItem *item) const
 {
     Q_D(const QListWidget);
-    QModelIndex index = d->model()->index(const_cast<QListWidgetItem*>(item));
+    QModelIndex index = d->listModel()->index(const_cast<QListWidgetItem*>(item));
     return selectionModel()->isSelected(index);
 }
 
@@ -1614,7 +1614,7 @@ bool QListWidget::isItemSelected(const QListWidgetItem *item) const
 void QListWidget::setItemSelected(const QListWidgetItem *item, bool select)
 {
     Q_D(QListWidget);
-    QModelIndex index = d->model()->index(const_cast<QListWidgetItem*>(item));
+    QModelIndex index = d->listModel()->index(const_cast<QListWidgetItem*>(item));
 
     if (d->selectionMode == SingleSelection) {
         selectionModel()->select(index, select
@@ -1638,7 +1638,7 @@ QList<QListWidgetItem*> QListWidget::selectedItems() const
     QModelIndexList indexes = selectionModel()->selectedIndexes();
     QList<QListWidgetItem*> items;
     for (int i = 0; i < indexes.count(); ++i)
-        items.append(d->model()->at(indexes.at(i).row()));
+        items.append(d->listModel()->at(indexes.at(i).row()));
     return items;
 }
 
@@ -1649,11 +1649,11 @@ QList<QListWidgetItem*> QListWidget::selectedItems() const
 QList<QListWidgetItem*> QListWidget::findItems(const QString &text, Qt::MatchFlags flags) const
 {
     Q_D(const QListWidget);
-    QModelIndexList indexes = d->model()->match(model()->index(0, 0, QModelIndex()),
+    QModelIndexList indexes = d->listModel()->match(model()->index(0, 0, QModelIndex()),
                                                 Qt::DisplayRole, text, -1, flags);
     QList<QListWidgetItem*> items;
     for (int i = 0; i < indexes.size(); ++i)
-        items.append(d->model()->at(indexes.at(i).row()));
+        items.append(d->listModel()->at(indexes.at(i).row()));
     return items;
 }
 
@@ -1690,7 +1690,7 @@ void QListWidget::setItemHidden(const QListWidgetItem *item, bool hide)
 void QListWidget::scrollToItem(const QListWidgetItem *item, QAbstractItemView::ScrollHint hint)
 {
     Q_D(QListWidget);
-    QModelIndex index = d->model()->index(const_cast<QListWidgetItem*>(item));
+    QModelIndex index = d->listModel()->index(const_cast<QListWidgetItem*>(item));
     QListView::scrollTo(index, hint);
 }
 
@@ -1703,7 +1703,7 @@ void QListWidget::clear()
 {
     Q_D(QListWidget);
     selectionModel()->clear();
-    d->model()->clear();
+    d->listModel()->clear();
 }
 
 /*!
@@ -1714,7 +1714,7 @@ void QListWidget::clear()
 */
 QStringList QListWidget::mimeTypes() const
 {
-    return d_func()->model()->QAbstractListModel::mimeTypes();
+    return d_func()->listModel()->QAbstractListModel::mimeTypes();
 }
 
 /*!
@@ -1727,7 +1727,7 @@ QStringList QListWidget::mimeTypes() const
 */
 QMimeData *QListWidget::mimeData(const QList<QListWidgetItem*>) const
 {
-    return d_func()->model()->internalMimeData();
+    return d_func()->listModel()->internalMimeData();
 }
 
 #ifndef QT_NO_DRAGANDDROP
@@ -1750,7 +1750,7 @@ bool QListWidget::dropMimeData(int index, const QMimeData *data, Qt::DropAction
         row = -1;
         column = -1;
     }
-    return d_func()->model()->QAbstractListModel::dropMimeData(data, action , row, column, idx);
+    return d_func()->listModel()->QAbstractListModel::dropMimeData(data, action , row, column, idx);
 }
 
 /*! \reimp */
@@ -1809,7 +1809,7 @@ void QListWidget::dropEvent(QDropEvent *event) {
 Qt::DropActions QListWidget::supportedDropActions() const
 {
     Q_D(const QListWidget);
-    return d->model()->QAbstractListModel::supportedDropActions() | Qt::MoveAction;
+    return d->listModel()->QAbstractListModel::supportedDropActions() | Qt::MoveAction;
 }
 #endif // QT_NO_DRAGANDDROP
 
@@ -1833,7 +1833,7 @@ QList<QListWidgetItem*> QListWidget::items(const QMimeData *data) const
 QModelIndex QListWidget::indexFromItem(QListWidgetItem *item) const
 {
     Q_D(const QListWidget);
-    return d->model()->index(item);
+    return d->listModel()->index(item);
 }
 
 /*!
@@ -1844,7 +1844,7 @@ QListWidgetItem *QListWidget::itemFromIndex(const QModelIndex &index) const
 {
     Q_D(const QListWidget);
     if (d->isIndexValid(index))
-        return d->model()->at(index.row());
+        return d->listModel()->at(index.row());
     return 0;
 }
 
diff --git a/src/gui/itemviews/qlistwidget_p.h b/src/gui/itemviews/qlistwidget_p.h
index 8556047..6887d9d 100644
--- a/src/gui/itemviews/qlistwidget_p.h
+++ b/src/gui/itemviews/qlistwidget_p.h
@@ -143,7 +143,7 @@ class QListWidgetPrivate : public QListViewPrivate
     Q_DECLARE_PUBLIC(QListWidget)
 public:
     QListWidgetPrivate() : QListViewPrivate(), sortOrder(Qt::AscendingOrder), sortingEnabled(false) {}
-    inline QListModel *model() const { return qobject_cast<QListModel*>(q_func()->model()); }
+    inline QListModel *listModel() const { return qobject_cast<QListModel*>(model); }
     void setup();
     void _q_emitItemPressed(const QModelIndex &index);
     void _q_emitItemClicked(const QModelIndex &index);
diff --git a/src/gui/itemviews/qstandarditemmodel.cpp b/src/gui/itemviews/qstandarditemmodel.cpp
index 9d0f796..30daed2 100644
--- a/src/gui/itemviews/qstandarditemmodel.cpp
+++ b/src/gui/itemviews/qstandarditemmodel.cpp
@@ -1742,18 +1742,21 @@ QList<QStandardItem*> QStandardItem::takeRow(int row)
     Q_D(QStandardItem);
     if ((row < 0) || (row >= rowCount()))
         return QList<QStandardItem*>();
+    if (d->model)
+        d->model->d_func()->rowsAboutToBeRemoved(this, row, row);
     QList<QStandardItem*> items;
     int index = d->childIndex(row, 0);
-    for (int column = 0; column < d->columnCount(); ++column) {
-        QStandardItem *ch = d->children.at(index);
-        if (ch) {
+    int col_count = d->columnCount();
+    for (int column = 0; column < col_count; ++column) {
+        QStandardItem *ch = d->children.at(index + column);
+        if (ch)
             ch->d_func()->setParentAndModel(0, 0);
-            d->children.replace(index, 0);
-        }
         items.append(ch);
-        ++index;
     }
-    removeRow(row);
+    d->children.remove(index, col_count);
+    d->rows--;
+    if (d->model)
+        d->model->d_func()->rowsRemoved(this, row, 1);
     return items;
 }
 
@@ -1769,18 +1772,21 @@ QList<QStandardItem*> QStandardItem::takeColumn(int column)
     Q_D(QStandardItem);
     if ((column < 0) || (column >= columnCount()))
         return QList<QStandardItem*>();
+    if (d->model)
+        d->model->d_func()->columnsAboutToBeRemoved(this, column, column);
     QList<QStandardItem*> items;
-    int index = d->childIndex(0, column);
-    for (int row = 0; row < d->rowCount(); ++row) {
+
+    for (int row = d->rowCount() - 1; row >= 0; --row) {
+        int index = d->childIndex(row, column);
         QStandardItem *ch = d->children.at(index);
-        if (ch) {
+        if (ch)
             ch->d_func()->setParentAndModel(0, 0);
-            d->children.replace(index, 0);
-        }
-        items.append(ch);
-        index += d->columnCount();
+        d->children.remove(index);
+        items.prepend(ch);
     }
-    removeColumn(column);
+    d->columns--;
+    if (d->model)
+        d->model->d_func()->columnsRemoved(this, column, 1);
     return items;
 }
 
diff --git a/src/gui/itemviews/qtablewidget.cpp b/src/gui/itemviews/qtablewidget.cpp
index 072e435..6645376 100644
--- a/src/gui/itemviews/qtablewidget.cpp
+++ b/src/gui/itemviews/qtablewidget.cpp
@@ -1570,7 +1570,7 @@ void QTableWidgetPrivate::setup()
     QObject::connect(q, SIGNAL(activated(QModelIndex)), q, SLOT(_q_emitItemActivated(QModelIndex)));
     QObject::connect(q, SIGNAL(entered(QModelIndex)), q, SLOT(_q_emitItemEntered(QModelIndex)));
     // model signals
-    QObject::connect(model(), SIGNAL(dataChanged(QModelIndex,QModelIndex)),
+    QObject::connect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
                      q, SLOT(_q_emitItemChanged(QModelIndex)));
     // selection signals
     QObject::connect(q->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
@@ -1578,15 +1578,15 @@ void QTableWidgetPrivate::setup()
     QObject::connect(q->selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
                      q, SIGNAL(itemSelectionChanged()));
     // sorting
-    QObject::connect(model(), SIGNAL(dataChanged(QModelIndex,QModelIndex)),
+    QObject::connect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
                      q, SLOT(_q_dataChanged(QModelIndex,QModelIndex)));
-    QObject::connect(model(), SIGNAL(columnsRemoved(QModelIndex,int,int)), q, SLOT(_q_sort()));
+    QObject::connect(model, SIGNAL(columnsRemoved(QModelIndex,int,int)), q, SLOT(_q_sort()));
 }
 
 void QTableWidgetPrivate::_q_emitItemPressed(const QModelIndex &index)
 {
     Q_Q(QTableWidget);
-    if (QTableWidgetItem *item = model()->item(index))
+    if (QTableWidgetItem *item = tableModel()->item(index))
         emit q->itemPressed(item);
     emit q->cellPressed(index.row(), index.column());
 }
@@ -1594,7 +1594,7 @@ void QTableWidgetPrivate::_q_emitItemPressed(const QModelIndex &index)
 void QTableWidgetPrivate::_q_emitItemClicked(const QModelIndex &index)
 {
     Q_Q(QTableWidget);
-    if (QTableWidgetItem *item = model()->item(index))
+    if (QTableWidgetItem *item = tableModel()->item(index))
         emit q->itemClicked(item);
     emit q->cellClicked(index.row(), index.column());
 }
@@ -1602,7 +1602,7 @@ void QTableWidgetPrivate::_q_emitItemClicked(const QModelIndex &index)
 void QTableWidgetPrivate::_q_emitItemDoubleClicked(const QModelIndex &index)
 {
     Q_Q(QTableWidget);
-    if (QTableWidgetItem *item = model()->item(index))
+    if (QTableWidgetItem *item = tableModel()->item(index))
         emit q->itemDoubleClicked(item);
     emit q->cellDoubleClicked(index.row(), index.column());
 }
@@ -1610,7 +1610,7 @@ void QTableWidgetPrivate::_q_emitItemDoubleClicked(const QModelIndex &index)
 void QTableWidgetPrivate::_q_emitItemActivated(const QModelIndex &index)
 {
     Q_Q(QTableWidget);
-    if (QTableWidgetItem *item = model()->item(index))
+    if (QTableWidgetItem *item = tableModel()->item(index))
         emit q->itemActivated(item);
     emit q->cellActivated(index.row(), index.column());
 }
@@ -1618,7 +1618,7 @@ void QTableWidgetPrivate::_q_emitItemActivated(const QModelIndex &index)
 void QTableWidgetPrivate::_q_emitItemEntered(const QModelIndex &index)
 {
     Q_Q(QTableWidget);
-    if (QTableWidgetItem *item = model()->item(index))
+    if (QTableWidgetItem *item = tableModel()->item(index))
         emit q->itemEntered(item);
     emit q->cellEntered(index.row(), index.column());
 }
@@ -1626,7 +1626,7 @@ void QTableWidgetPrivate::_q_emitItemEntered(const QModelIndex &index)
 void QTableWidgetPrivate::_q_emitItemChanged(const QModelIndex &index)
 {
     Q_Q(QTableWidget);
-    if (QTableWidgetItem *item = model()->item(index))
+    if (QTableWidgetItem *item = tableModel()->item(index))
         emit q->itemChanged(item);
     emit q->cellChanged(index.row(), index.column());
 }
@@ -1635,8 +1635,8 @@ void QTableWidgetPrivate::_q_emitCurrentItemChanged(const QModelIndex &current,
                                                  const QModelIndex &previous)
 {
     Q_Q(QTableWidget);
-    QTableWidgetItem *currentItem = model()->item(current);
-    QTableWidgetItem *previousItem = model()->item(previous);
+    QTableWidgetItem *currentItem = tableModel()->item(current);
+    QTableWidgetItem *previousItem = tableModel()->item(previous);
     if (currentItem || previousItem)
         emit q->currentItemChanged(currentItem, previousItem);
     emit q->currentCellChanged(current.row(), current.column(), previous.row(), previous.column());
@@ -1647,7 +1647,7 @@ void QTableWidgetPrivate::_q_sort()
     if (sortingEnabled) {
         int column = horizontalHeader->sortIndicatorSection();
         Qt::SortOrder order = horizontalHeader->sortIndicatorOrder();
-        model()->sort(column, order);
+        model->sort(column, order);
     }
 }
 
@@ -1658,7 +1658,7 @@ void QTableWidgetPrivate::_q_dataChanged(const QModelIndex &topLeft,
         int column = horizontalHeader->sortIndicatorSection();
         if (column >= topLeft.column() && column <= bottomRight.column()) {
             Qt::SortOrder order = horizontalHeader->sortIndicatorOrder();
-            model()->ensureSorted(column, order, topLeft.row(), bottomRight.row());
+            tableModel()->ensureSorted(column, order, topLeft.row(), bottomRight.row());
         }
     }
 }
@@ -1862,7 +1862,7 @@ QTableWidget::~QTableWidget()
 void QTableWidget::setRowCount(int rows)
 {
     Q_D(QTableWidget);
-    d->model()->setRowCount(rows);
+    d->tableModel()->setRowCount(rows);
 }
 
 /*!
@@ -1872,7 +1872,7 @@ void QTableWidget::setRowCount(int rows)
 int QTableWidget::rowCount() const
 {
     Q_D(const QTableWidget);
-    return d->model()->rowCount();
+    return d->model->rowCount();
 }
 
 /*!
@@ -1885,7 +1885,7 @@ int QTableWidget::rowCount() const
 void QTableWidget::setColumnCount(int columns)
 {
     Q_D(QTableWidget);
-    d->model()->setColumnCount(columns);
+    d->tableModel()->setColumnCount(columns);
 }
 
 /*!
@@ -1895,7 +1895,7 @@ void QTableWidget::setColumnCount(int columns)
 int QTableWidget::columnCount() const
 {
     Q_D(const QTableWidget);
-    return d->model()->columnCount();
+    return d->model->columnCount();
 }
 
 /*!
@@ -1904,7 +1904,7 @@ int QTableWidget::columnCount() const
 int QTableWidget::row(const QTableWidgetItem *item) const
 {
     Q_D(const QTableWidget);
-    return d->model()->index(item).row();
+    return d->tableModel()->index(item).row();
 }
 
 /*!
@@ -1913,7 +1913,7 @@ int QTableWidget::row(const QTableWidgetItem *item) const
 int QTableWidget::column(const QTableWidgetItem *item) const
 {
     Q_D(const QTableWidget);
-    return d->model()->index(item).column();
+    return d->tableModel()->index(item).column();
 }
 
 
@@ -1926,7 +1926,7 @@ int QTableWidget::column(const QTableWidgetItem *item) const
 QTableWidgetItem *QTableWidget::item(int row, int column) const
 {
     Q_D(const QTableWidget);
-    return d->model()->item(row, column);
+    return d->tableModel()->item(row, column);
 }
 
 /*!
@@ -1955,7 +1955,7 @@ void QTableWidget::setItem(int row, int column, QTableWidgetItem *item)
             qWarning("QTableWidget: cannot insert an item that is already owned by another QTableWidget");
         } else {
             item->view = this;
-            d->model()->setItem(row, column, item);
+            d->tableModel()->setItem(row, column, item);
         }
     } else {
         delete takeItem(row, column);
@@ -1968,7 +1968,7 @@ void QTableWidget::setItem(int row, int column, QTableWidgetItem *item)
 QTableWidgetItem *QTableWidget::takeItem(int row, int column)
 {
     Q_D(QTableWidget);
-    QTableWidgetItem *item = d->model()->takeItem(row, column);
+    QTableWidgetItem *item = d->tableModel()->takeItem(row, column);
     if (item)
         item->view = 0;
     return item;
@@ -1980,7 +1980,7 @@ QTableWidgetItem *QTableWidget::takeItem(int row, int column)
 QTableWidgetItem *QTableWidget::verticalHeaderItem(int row) const
 {
     Q_D(const QTableWidget);
-    return d->model()->verticalHeaderItem(row);
+    return d->tableModel()->verticalHeaderItem(row);
 }
 
 /*!
@@ -1991,7 +1991,7 @@ void QTableWidget::setVerticalHeaderItem(int row, QTableWidgetItem *item)
     Q_D(QTableWidget);
     if (item) {
         item->view = this;
-        d->model()->setVerticalHeaderItem(row, item);
+        d->tableModel()->setVerticalHeaderItem(row, item);
     } else {
         delete takeVerticalHeaderItem(row);
     }
@@ -2004,7 +2004,7 @@ void QTableWidget::setVerticalHeaderItem(int row, QTableWidgetItem *item)
 QTableWidgetItem *QTableWidget::takeVerticalHeaderItem(int row)
 {
     Q_D(QTableWidget);
-    QTableWidgetItem *itm = d->model()->takeVerticalHeaderItem(row);
+    QTableWidgetItem *itm = d->tableModel()->takeVerticalHeaderItem(row);
     if (itm)
         itm->view = 0;
     return itm;
@@ -2017,7 +2017,7 @@ QTableWidgetItem *QTableWidget::takeVerticalHeaderItem(int row)
 QTableWidgetItem *QTableWidget::horizontalHeaderItem(int column) const
 {
     Q_D(const QTableWidget);
-    return d->model()->horizontalHeaderItem(column);
+    return d->tableModel()->horizontalHeaderItem(column);
 }
 
 /*!
@@ -2028,7 +2028,7 @@ void QTableWidget::setHorizontalHeaderItem(int column, QTableWidgetItem *item)
     Q_D(QTableWidget);
     if (item) {
         item->view = this;
-        d->model()->setHorizontalHeaderItem(column, item);
+        d->tableModel()->setHorizontalHeaderItem(column, item);
     } else {
         delete takeHorizontalHeaderItem(column);
     }
@@ -2041,7 +2041,7 @@ void QTableWidget::setHorizontalHeaderItem(int column, QTableWidgetItem *item)
 QTableWidgetItem *QTableWidget::takeHorizontalHeaderItem(int column)
 {
     Q_D(QTableWidget);
-    QTableWidgetItem *itm = d->model()->takeHorizontalHeaderItem(column);
+    QTableWidgetItem *itm = d->tableModel()->takeHorizontalHeaderItem(column);
     if (itm)
         itm->view = 0;
     return itm;
@@ -2053,7 +2053,7 @@ QTableWidgetItem *QTableWidget::takeHorizontalHeaderItem(int column)
 void QTableWidget::setVerticalHeaderLabels(const QStringList &labels)
 {
     Q_D(QTableWidget);
-    QTableModel *model = d->model();
+    QTableModel *model = d->tableModel();
     QTableWidgetItem *item = 0;
     for (int i = 0; i < model->rowCount() && i < labels.count(); ++i) {
         item = model->verticalHeaderItem(i);
@@ -2071,7 +2071,7 @@ void QTableWidget::setVerticalHeaderLabels(const QStringList &labels)
 void QTableWidget::setHorizontalHeaderLabels(const QStringList &labels)
 {
     Q_D(QTableWidget);
-    QTableModel *model = d->model();
+    QTableModel *model = d->tableModel();
     QTableWidgetItem *item = 0;
     for (int i = 0; i < model->columnCount() && i < labels.count(); ++i) {
         item = model->horizontalHeaderItem(i);
@@ -2111,7 +2111,7 @@ int QTableWidget::currentColumn() const
 QTableWidgetItem *QTableWidget::currentItem() const
 {
     Q_D(const QTableWidget);
-    return d->model()->item(currentIndex());
+    return d->tableModel()->item(currentIndex());
 }
 
 /*!
@@ -2125,7 +2125,7 @@ QTableWidgetItem *QTableWidget::currentItem() const
 void QTableWidget::setCurrentItem(QTableWidgetItem *item)
 {
     Q_D(QTableWidget);
-    setCurrentIndex(d->model()->index(item));
+    setCurrentIndex(d->tableModel()->index(item));
 }
 
 /*!
@@ -2138,7 +2138,7 @@ void QTableWidget::setCurrentItem(QTableWidgetItem *item)
 void QTableWidget::setCurrentItem(QTableWidgetItem *item, QItemSelectionModel::SelectionFlags command)
 {
     Q_D(QTableWidget);
-    d->selectionModel->setCurrentIndex(d->model()->index(item), command);
+    d->selectionModel->setCurrentIndex(d->tableModel()->index(item), command);
 }
 
 /*!
@@ -2177,7 +2177,7 @@ void QTableWidget::setCurrentCell(int row, int column, QItemSelectionModel::Sele
 void QTableWidget::sortItems(int column, Qt::SortOrder order)
 {
     Q_D(QTableWidget);
-    d->model()->sort(column, order);
+    d->model->sort(column, order);
     horizontalHeader()->setSortIndicator(column, order);
 }
 
@@ -2206,7 +2206,7 @@ void QTableWidget::editItem(QTableWidgetItem *item)
     Q_D(QTableWidget);
     if (!item)
         return;
-    edit(d->model()->index(item));
+    edit(d->tableModel()->index(item));
 }
 
 /*!
@@ -2219,7 +2219,7 @@ void QTableWidget::openPersistentEditor(QTableWidgetItem *item)
     Q_D(QTableWidget);
     if (!item)
         return;
-    QModelIndex index = d->model()->index(item);
+    QModelIndex index = d->tableModel()->index(item);
     QAbstractItemView::openPersistentEditor(index);
 }
 
@@ -2233,7 +2233,7 @@ void QTableWidget::closePersistentEditor(QTableWidgetItem *item)
     Q_D(QTableWidget);
     if (!item)
         return;
-    QModelIndex index = d->model()->index(item);
+    QModelIndex index = d->tableModel()->index(item);
     QAbstractItemView::closePersistentEditor(index);
 }
 
@@ -2283,7 +2283,7 @@ void QTableWidget::setCellWidget(int row, int column, QWidget *widget)
 bool QTableWidget::isItemSelected(const QTableWidgetItem *item) const
 {
     Q_D(const QTableWidget);
-    QModelIndex index = d->model()->index(item);
+    QModelIndex index = d->tableModel()->index(item);
     return selectionModel()->isSelected(index);
 }
 
@@ -2297,7 +2297,7 @@ bool QTableWidget::isItemSelected(const QTableWidgetItem *item) const
 void QTableWidget::setItemSelected(const QTableWidgetItem *item, bool select)
 {
     Q_D(QTableWidget);
-    QModelIndex index = d->model()->index(item);
+    QModelIndex index = d->tableModel()->index(item);
     selectionModel()->select(index, select ? QItemSelectionModel::Select : QItemSelectionModel::Deselect);
 }
 
@@ -2354,7 +2354,7 @@ QList<QTableWidgetItem*> QTableWidget::selectedItems()
         QModelIndex index = indexes.at(i);
         if (isIndexHidden(index))
             continue;
-        QTableWidgetItem *item = d->model()->item(index);
+        QTableWidgetItem *item = d->tableModel()->item(index);
         if (item)
             items.append(item);
     }
@@ -2370,11 +2370,11 @@ QList<QTableWidgetItem*> QTableWidget::findItems(const QString &text, Qt::MatchF
     Q_D(const QTableWidget);
     QModelIndexList indexes;
     for (int column = 0; column < columnCount(); ++column)
-        indexes += d->model()->match(model()->index(0, column, QModelIndex()),
+        indexes += d->model->match(model()->index(0, column, QModelIndex()),
                                      Qt::DisplayRole, text, -1, flags);
     QList<QTableWidgetItem*> items;
     for (int i = 0; i < indexes.size(); ++i)
-        items.append(d->model()->item(indexes.at(i)));
+        items.append(d->tableModel()->item(indexes.at(i)));
     return items;
 }
 
@@ -2408,7 +2408,7 @@ int QTableWidget::visualColumn(int logicalColumn) const
 QTableWidgetItem *QTableWidget::itemAt(const QPoint &p) const
 {
     Q_D(const QTableWidget);
-    return d->model()->item(indexAt(p));
+    return d->tableModel()->item(indexAt(p));
 }
 
 /*!
@@ -2419,7 +2419,7 @@ QRect QTableWidget::visualItemRect(const QTableWidgetItem *item) const
     Q_D(const QTableWidget);
     if (!item)
         return QRect();
-    QModelIndex index = d->model()->index(const_cast<QTableWidgetItem*>(item));
+    QModelIndex index = d->tableModel()->index(const_cast<QTableWidgetItem*>(item));
     Q_ASSERT(index.isValid());
     return visualRect(index);
 }
@@ -2435,7 +2435,7 @@ void QTableWidget::scrollToItem(const QTableWidgetItem *item, QAbstractItemView:
     Q_D(QTableWidget);
     if (!item)
         return;
-    QModelIndex index = d->model()->index(const_cast<QTableWidgetItem*>(item));
+    QModelIndex index = d->tableModel()->index(const_cast<QTableWidgetItem*>(item));
     Q_ASSERT(index.isValid());
     QTableView::scrollTo(index, hint);
 }
@@ -2448,7 +2448,7 @@ void QTableWidget::scrollToItem(const QTableWidgetItem *item, QAbstractItemView:
 const QTableWidgetItem *QTableWidget::itemPrototype() const
 {
     Q_D(const QTableWidget);
-    return d->model()->itemPrototype();
+    return d->tableModel()->itemPrototype();
 }
 
 /*!
@@ -2467,7 +2467,7 @@ const QTableWidgetItem *QTableWidget::itemPrototype() const
 void QTableWidget::setItemPrototype(const QTableWidgetItem *item)
 {
     Q_D(QTableWidget);
-    d->model()->setItemPrototype(item);
+    d->tableModel()->setItemPrototype(item);
 }
 
 /*!
@@ -2476,7 +2476,7 @@ void QTableWidget::setItemPrototype(const QTableWidgetItem *item)
 void QTableWidget::insertRow(int row)
 {
     Q_D(QTableWidget);
-    d->model()->insertRows(row);
+    d->tableModel()->insertRows(row);
 }
 
 /*!
@@ -2485,7 +2485,7 @@ void QTableWidget::insertRow(int row)
 void QTableWidget::insertColumn(int column)
 {
     Q_D(QTableWidget);
-    d->model()->insertColumns(column);
+    d->tableModel()->insertColumns(column);
 }
 
 /*!
@@ -2494,7 +2494,7 @@ void QTableWidget::insertColumn(int column)
 void QTableWidget::removeRow(int row)
 {
     Q_D(QTableWidget);
-    d->model()->removeRows(row);
+    d->tableModel()->removeRows(row);
 }
 
 /*!
@@ -2503,7 +2503,7 @@ void QTableWidget::removeRow(int row)
 void QTableWidget::removeColumn(int column)
 {
     Q_D(QTableWidget);
-    d->model()->removeColumns(column);
+    d->tableModel()->removeColumns(column);
 }
 
 /*!
@@ -2516,7 +2516,7 @@ void QTableWidget::clear()
 {
     Q_D(QTableWidget);
     selectionModel()->clear();
-    d->model()->clear();
+    d->tableModel()->clear();
 }
 
 /*!
@@ -2530,7 +2530,7 @@ void QTableWidget::clearContents()
 {
     Q_D(QTableWidget);
     selectionModel()->clear();
-    d->model()->clearContents();
+    d->tableModel()->clearContents();
 }
 
 /*!
@@ -2541,7 +2541,7 @@ void QTableWidget::clearContents()
 */
 QStringList QTableWidget::mimeTypes() const
 {
-    return d_func()->model()->QAbstractTableModel::mimeTypes();
+    return d_func()->tableModel()->QAbstractTableModel::mimeTypes();
 }
 
 /*!
@@ -2554,7 +2554,7 @@ QStringList QTableWidget::mimeTypes() const
 */
 QMimeData *QTableWidget::mimeData(const QList<QTableWidgetItem*>) const
 {
-    return d_func()->model()->internalMimeData();
+    return d_func()->tableModel()->internalMimeData();
 }
 
 /*!
@@ -2576,7 +2576,7 @@ bool QTableWidget::dropMimeData(int row, int column, const QMimeData *data, Qt::
         column = -1;
     }
 #endif
-    return d_func()->model()->QAbstractTableModel::dropMimeData(data, action , row, column, idx);
+    return d_func()->tableModel()->QAbstractTableModel::dropMimeData(data, action , row, column, idx);
 }
 
 /*!
@@ -2586,7 +2586,7 @@ bool QTableWidget::dropMimeData(int row, int column, const QMimeData *data, Qt::
 */
 Qt::DropActions QTableWidget::supportedDropActions() const
 {
-    return d_func()->model()->QAbstractTableModel::supportedDropActions() | Qt::MoveAction;
+    return d_func()->tableModel()->QAbstractTableModel::supportedDropActions() | Qt::MoveAction;
 }
 
 /*!
@@ -2610,7 +2610,7 @@ QList<QTableWidgetItem*> QTableWidget::items(const QMimeData *data) const
 QModelIndex QTableWidget::indexFromItem(QTableWidgetItem *item) const
 {
     Q_D(const QTableWidget);
-    return d->model()->index(item);
+    return d->tableModel()->index(item);
 }
 
 /*!
@@ -2620,7 +2620,7 @@ QModelIndex QTableWidget::indexFromItem(QTableWidgetItem *item) const
 QTableWidgetItem *QTableWidget::itemFromIndex(const QModelIndex &index) const
 {
     Q_D(const QTableWidget);
-    return d->model()->item(index);
+    return d->tableModel()->item(index);
 }
 
 /*!
diff --git a/src/gui/itemviews/qtablewidget_p.h b/src/gui/itemviews/qtablewidget_p.h
index d8bfcc5..2acaf9b 100644
--- a/src/gui/itemviews/qtablewidget_p.h
+++ b/src/gui/itemviews/qtablewidget_p.h
@@ -189,7 +189,7 @@ class QTableWidgetPrivate : public QTableViewPrivate
     Q_DECLARE_PUBLIC(QTableWidget)
 public:
     QTableWidgetPrivate() : QTableViewPrivate() {}
-    inline QTableModel *model() const { return qobject_cast<QTableModel*>(q_func()->model()); }
+    inline QTableModel *tableModel() const { return qobject_cast<QTableModel*>(model); }
     void setup();
 
     // view signals
diff --git a/src/gui/itemviews/qtreeview.cpp b/src/gui/itemviews/qtreeview.cpp
index 9910118..ecbd683 100644
--- a/src/gui/itemviews/qtreeview.cpp
+++ b/src/gui/itemviews/qtreeview.cpp
@@ -1319,7 +1319,7 @@ bool QTreeViewPrivate::expandOrCollapseItemAtPos(const QPoint &pos)
             expand(i, true);
         if (!isAnimating()) {
             q->updateGeometries();
-            q->viewport()->update();
+            viewport->update();
         }
         return true;
     }
@@ -3201,19 +3201,18 @@ int QTreeViewPrivate::itemHeight(int item) const
 */
 int QTreeViewPrivate::coordinateForItem(int item) const
 {
-    Q_Q(const QTreeView);
     if (verticalScrollMode == QAbstractItemView::ScrollPerPixel) {
         if (uniformRowHeights)
-            return (item * defaultItemHeight) - q->verticalScrollBar()->value();
+            return (item * defaultItemHeight) - vbar->value();
         // ### optimize (spans or caching)
         int y = 0;
         for (int i = 0; i < viewItems.count(); ++i) {
             if (i == item)
-                return y - q->verticalScrollBar()->value();
+                return y - vbar->value();
             y += itemHeight(i);
         }
     } else { // ScrollPerItem
-        int topViewItemIndex = q->verticalScrollBar()->value();
+        int topViewItemIndex = vbar->value();
         if (uniformRowHeights)
             return defaultItemHeight * (item - topViewItemIndex);
         if (item >= topViewItemIndex) {
@@ -3253,7 +3252,6 @@ int QTreeViewPrivate::coordinateForItem(int item) const
 */
 int QTreeViewPrivate::itemAtCoordinate(int coordinate) const
 {
-    Q_Q(const QTreeView);
     const int itemCount = viewItems.count();
     if (itemCount == 0)
         return -1;
@@ -3261,19 +3259,19 @@ int QTreeViewPrivate::itemAtCoordinate(int coordinate) const
         return -1;
     if (verticalScrollMode == QAbstractItemView::ScrollPerPixel) {
         if (uniformRowHeights) {
-            const int viewItemIndex = (coordinate + q->verticalScrollBar()->value()) / defaultItemHeight;
+            const int viewItemIndex = (coordinate + vbar->value()) / defaultItemHeight;
             return ((viewItemIndex >= itemCount || viewItemIndex < 0) ? -1 : viewItemIndex);
         }
         // ### optimize
         int viewItemCoordinate = 0;
-        const int contentsCoordinate = coordinate + q->verticalScrollBar()->value();
+        const int contentsCoordinate = coordinate + vbar->value();
         for (int viewItemIndex = 0; viewItemIndex < viewItems.count(); ++viewItemIndex) {
             viewItemCoordinate += itemHeight(viewItemIndex);
             if (viewItemCoordinate >= contentsCoordinate)
                 return (viewItemIndex >= itemCount ? -1 : viewItemIndex);
         }
     } else { // ScrollPerItem
-        int topViewItemIndex = q->verticalScrollBar()->value();
+        int topViewItemIndex = vbar->value();
         if (uniformRowHeights) {
             if (coordinate < 0)
                 coordinate -= defaultItemHeight - 1;
@@ -3365,8 +3363,7 @@ QModelIndex QTreeViewPrivate::modelIndex(int i, int column) const
 
 int QTreeViewPrivate::firstVisibleItem(int *offset) const
 {
-    Q_Q(const QTreeView);
-    const int value = q->verticalScrollBar()->value();
+    const int value = vbar->value();
     if (verticalScrollMode == QAbstractItemView::ScrollPerItem) {
         if (offset)
             *offset = 0;
@@ -3443,9 +3440,9 @@ void QTreeViewPrivate::updateScrollBars()
     if (verticalScrollMode == QAbstractItemView::ScrollPerItem) {
         if (!viewItems.isEmpty())
             itemsInViewport = qMax(1, itemsInViewport);
-        q->verticalScrollBar()->setRange(0, viewItems.count() - itemsInViewport);
-        q->verticalScrollBar()->setPageStep(itemsInViewport);
-        q->verticalScrollBar()->setSingleStep(1);
+        vbar->setRange(0, viewItems.count() - itemsInViewport);
+        vbar->setPageStep(itemsInViewport);
+        vbar->setSingleStep(1);
     } else { // scroll per pixel
         int contentsHeight = 0;
         if (uniformRowHeights) {
@@ -3454,9 +3451,9 @@ void QTreeViewPrivate::updateScrollBars()
             for (int i = 0; i < viewItems.count(); ++i)
                 contentsHeight += itemHeight(i);
         }
-        q->verticalScrollBar()->setRange(0, contentsHeight - viewportSize.height());
-        q->verticalScrollBar()->setPageStep(viewportSize.height());
-        q->verticalScrollBar()->setSingleStep(qMax(viewportSize.height() / (itemsInViewport + 1), 2));
+        vbar->setRange(0, contentsHeight - viewportSize.height());
+        vbar->setPageStep(viewportSize.height());
+        vbar->setSingleStep(qMax(viewportSize.height() / (itemsInViewport + 1), 2));
     }
 
     const int columnCount = header->count();
@@ -3472,23 +3469,23 @@ void QTreeViewPrivate::updateScrollBars()
     if (columnCount > 0)
         columnsInViewport = qMax(1, columnsInViewport);
     if (horizontalScrollMode == QAbstractItemView::ScrollPerItem) {
-        q->horizontalScrollBar()->setRange(0, columnCount - columnsInViewport);
-        q->horizontalScrollBar()->setPageStep(columnsInViewport);
-        q->horizontalScrollBar()->setSingleStep(1);
+        hbar->setRange(0, columnCount - columnsInViewport);
+        hbar->setPageStep(columnsInViewport);
+        hbar->setSingleStep(1);
     } else { // scroll per pixel
         const int horizontalLength = header->length();
         const QSize maxSize = q->maximumViewportSize();
-        if (maxSize.width() >= horizontalLength && q->verticalScrollBar()->maximum() <= 0)
+        if (maxSize.width() >= horizontalLength && vbar->maximum() <= 0)
             viewportSize = maxSize;
-        q->horizontalScrollBar()->setPageStep(viewportSize.width());
-        q->horizontalScrollBar()->setRange(0, qMax(horizontalLength - viewportSize.width(), 0));
-        q->horizontalScrollBar()->setSingleStep(qMax(viewportSize.width() / (columnsInViewport + 1), 2));
+        hbar->setPageStep(viewportSize.width());
+        hbar->setRange(0, qMax(horizontalLength - viewportSize.width(), 0));
+        hbar->setSingleStep(qMax(viewportSize.width() / (columnsInViewport + 1), 2));
     }
 }
 
 int QTreeViewPrivate::itemDecorationAt(const QPoint &pos) const
 {
-    const_cast<QTreeView *>(q_func())->executeDelayedItemsLayout();
+    executePostedLayout();
     int x = pos.x();
     int column = header->logicalIndexAt(x);
     if (column != 0)
diff --git a/src/gui/itemviews/qtreewidget.cpp b/src/gui/itemviews/qtreewidget.cpp
index 5604f8d..2a6ac30 100644
--- a/src/gui/itemviews/qtreewidget.cpp
+++ b/src/gui/itemviews/qtreewidget.cpp
@@ -2280,11 +2280,10 @@ void QTreeWidgetPrivate::_q_emitCurrentItemChanged(const QModelIndex &current,
 
 void QTreeWidgetPrivate::_q_sort()
 {
-    Q_Q(QTreeWidget);
     if (sortingEnabled) {
-        int column = q->header()->sortIndicatorSection();
-        Qt::SortOrder order = q->header()->sortIndicatorOrder();
-        model()->sort(column, order);
+        int column = header->sortIndicatorSection();
+        Qt::SortOrder order = header->sortIndicatorOrder();
+        treeModel()->sort(column, order);
     }
 }
 
@@ -2293,7 +2292,7 @@ void QTreeWidgetPrivate::_q_selectionChanged(const QItemSelection &selected, con
     Q_Q(QTreeWidget);
     QModelIndexList indices = selected.indexes();
     int i;
-    QTreeModel *m = model();
+    QTreeModel *m = treeModel();
     for (i = 0; i < indices.count(); ++i) {
         QTreeWidgetItem *item = m->item(indices.at(i));
         item->d->selected = true;
@@ -2311,13 +2310,12 @@ void QTreeWidgetPrivate::_q_selectionChanged(const QItemSelection &selected, con
 void QTreeWidgetPrivate::_q_dataChanged(const QModelIndex &topLeft,
                                         const QModelIndex &bottomRight)
 {
-    Q_Q(QTreeWidget);
     if (sortingEnabled && topLeft.isValid() && bottomRight.isValid()
-        && !model()->sortPendingTimer.isActive()) {
-        int column = q->header()->sortIndicatorSection();
+        && !treeModel()->sortPendingTimer.isActive()) {
+        int column = header->sortIndicatorSection();
         if (column >= topLeft.column() && column <= bottomRight.column()) {
-            Qt::SortOrder order = q->header()->sortIndicatorOrder();
-            model()->ensureSorted(column, order, topLeft.row(),
+            Qt::SortOrder order = header->sortIndicatorOrder();
+            treeModel()->ensureSorted(column, order, topLeft.row(),
                                   bottomRight.row(), topLeft.parent());
         }
     }
@@ -2545,7 +2543,7 @@ QTreeWidget::~QTreeWidget()
 int QTreeWidget::columnCount() const
 {
     Q_D(const QTreeWidget);
-    return d->model()->columnCount();
+    return d->model->columnCount();
 }
 
 /*
@@ -2557,7 +2555,7 @@ void QTreeWidget::setColumnCount(int columns)
     Q_D(QTreeWidget);
     if (columns < 0)
         return;
-    d->model()->setColumnCount(columns);
+    d->treeModel()->setColumnCount(columns);
 }
 
 /*!
@@ -2574,7 +2572,7 @@ void QTreeWidget::setColumnCount(int columns)
 QTreeWidgetItem *QTreeWidget::invisibleRootItem() const
 {
     Q_D(const QTreeWidget);
-    return d->model()->rootItem;
+    return d->treeModel()->rootItem;
 }
 
 /*!
@@ -2587,7 +2585,7 @@ QTreeWidgetItem *QTreeWidget::invisibleRootItem() const
 QTreeWidgetItem *QTreeWidget::topLevelItem(int index) const
 {
     Q_D(const QTreeWidget);
-    return d->model()->rootItem->child(index);
+    return d->treeModel()->rootItem->child(index);
 }
 
 /*!
@@ -2602,7 +2600,7 @@ QTreeWidgetItem *QTreeWidget::topLevelItem(int index) const
 int QTreeWidget::topLevelItemCount() const
 {
     Q_D(const QTreeWidget);
-    return d->model()->rootItem->childCount();
+    return d->treeModel()->rootItem->childCount();
 }
 
 /*!
@@ -2616,7 +2614,7 @@ int QTreeWidget::topLevelItemCount() const
 void QTreeWidget::insertTopLevelItem(int index, QTreeWidgetItem *item)
 {
     Q_D(QTreeWidget);
-    d->model()->rootItem->insertChild(index, item);
+    d->treeModel()->rootItem->insertChild(index, item);
 }
 
 /*!
@@ -2641,7 +2639,7 @@ void QTreeWidget::addTopLevelItem(QTreeWidgetItem *item)
 QTreeWidgetItem *QTreeWidget::takeTopLevelItem(int index)
 {
     Q_D(QTreeWidget);
-    return d->model()->rootItem->takeChild(index);
+    return d->treeModel()->rootItem->takeChild(index);
 }
 
 /*!
@@ -2650,8 +2648,8 @@ QTreeWidgetItem *QTreeWidget::takeTopLevelItem(int index)
 int QTreeWidget::indexOfTopLevelItem(QTreeWidgetItem *item)
 {
     Q_D(QTreeWidget);
-    d->model()->executePendingSort();
-    return d->model()->rootItem->children.indexOf(item);
+    d->treeModel()->executePendingSort();
+    return d->treeModel()->rootItem->children.indexOf(item);
 }
 
 /*!
@@ -2663,8 +2661,8 @@ int QTreeWidget::indexOfTopLevelItem(QTreeWidgetItem *item)
 int QTreeWidget::indexOfTopLevelItem(QTreeWidgetItem *item) const
 {
     Q_D(const QTreeWidget);
-    d->model()->executePendingSort();
-    return d->model()->rootItem->children.indexOf(item);
+    d->treeModel()->executePendingSort();
+    return d->treeModel()->rootItem->children.indexOf(item);
 }
 
 /*!
@@ -2679,7 +2677,7 @@ int QTreeWidget::indexOfTopLevelItem(QTreeWidgetItem *item) const
 void QTreeWidget::insertTopLevelItems(int index, const QList<QTreeWidgetItem*> &items)
 {
     Q_D(QTreeWidget);
-    d->model()->rootItem->insertChildren(index, items);
+    d->treeModel()->rootItem->insertChildren(index, items);
 }
 
 /*!
@@ -2701,7 +2699,7 @@ void QTreeWidget::addTopLevelItems(const QList<QTreeWidgetItem*> &items)
 QTreeWidgetItem *QTreeWidget::headerItem() const
 {
     Q_D(const QTreeWidget);
-    return d->model()->headerItem;
+    return d->treeModel()->headerItem;
 }
 
 /*!
@@ -2722,16 +2720,16 @@ void QTreeWidget::setHeaderItem(QTreeWidgetItem *item)
 
     int oldCount = columnCount();
     if (oldCount < item->columnCount())
-         d->model()->beginInsertColumns(QModelIndex(), oldCount, item->columnCount());
+         d->treeModel()->beginInsertColumns(QModelIndex(), oldCount, item->columnCount());
     else
-         d->model()->beginRemoveColumns(QModelIndex(), item->columnCount(), oldCount);
-    delete d->model()->headerItem;
-    d->model()->headerItem = item;
+         d->treeModel()->beginRemoveColumns(QModelIndex(), item->columnCount(), oldCount);
+    delete d->treeModel()->headerItem;
+    d->treeModel()->headerItem = item;
     if (oldCount < item->columnCount())
-        d->model()->endInsertColumns();
+        d->treeModel()->endInsertColumns();
     else
-        d->model()->endRemoveColumns();
-    d->model()->headerDataChanged(Qt::Horizontal, 0, oldCount);
+        d->treeModel()->endRemoveColumns();
+    d->treeModel()->headerDataChanged(Qt::Horizontal, 0, oldCount);
 }
 
 
@@ -2748,8 +2746,7 @@ void QTreeWidget::setHeaderLabels(const QStringList &labels)
     Q_D(QTreeWidget);
     if (columnCount() < labels.count())
         setColumnCount(labels.count());
-    QTreeModel *model = d->model();
-    QTreeWidgetItem *item = model->headerItem;
+    QTreeWidgetItem *item = d->treeModel()->headerItem;
     for (int i = 0; i < labels.count(); ++i)
         item->setText(i, labels.at(i));
 }
@@ -2877,7 +2874,7 @@ void QTreeWidget::sortItems(int column, Qt::SortOrder order)
 {
     Q_D(QTreeWidget);
     header()->setSortIndicator(column, order);
-    d->model()->sort(column, order);
+    d->model->sort(column, order);
 }
 
 /*!
@@ -3044,7 +3041,7 @@ QList<QTreeWidgetItem*> QTreeWidget::selectedItems() const
 QList<QTreeWidgetItem*> QTreeWidget::findItems(const QString &text, Qt::MatchFlags flags, int column) const
 {
     Q_D(const QTreeWidget);
-    QModelIndexList indexes = d->model()->match(model()->index(0, column, QModelIndex()),
+    QModelIndexList indexes = d->model->match(model()->index(0, column, QModelIndex()),
                                                 Qt::DisplayRole, text, -1, flags);
     QList<QTreeWidgetItem*> items;
     for (int i = 0; i < indexes.size(); ++i)
@@ -3062,11 +3059,11 @@ QList<QTreeWidgetItem*> QTreeWidget::findItems(const QString &text, Qt::MatchFla
 bool QTreeWidget::isItemHidden(const QTreeWidgetItem *item) const
 {
     Q_D(const QTreeWidget);
-    if (item == d->model()->headerItem)
+    if (item == d->treeModel()->headerItem)
         return header()->isHidden();
     if (d->hiddenIndexes.isEmpty())
         return false;
-    QTreeModel::SkipSorting skipSorting(d->model());
+    QTreeModel::SkipSorting skipSorting(d->treeModel());
     return d->isRowHidden(d->index(item));
 }
 
@@ -3082,7 +3079,7 @@ bool QTreeWidget::isItemHidden(const QTreeWidgetItem *item) const
 void QTreeWidget::setItemHidden(const QTreeWidgetItem *item, bool hide)
 {
     Q_D(QTreeWidget);
-    if (item == d->model()->headerItem) {
+    if (item == d->treeModel()->headerItem) {
         header()->setHidden(hide);
     } else {
         const QModelIndex index = d->index(item);
@@ -3102,7 +3099,7 @@ void QTreeWidget::setItemHidden(const QTreeWidgetItem *item, bool hide)
 bool QTreeWidget::isItemExpanded(const QTreeWidgetItem *item) const
 {
     Q_D(const QTreeWidget);
-    QTreeModel::SkipSorting skipSorting(d->model());
+    QTreeModel::SkipSorting skipSorting(d->treeModel());
     return isExpanded(d->index(item));
 }
 
@@ -3119,7 +3116,7 @@ bool QTreeWidget::isItemExpanded(const QTreeWidgetItem *item) const
 void QTreeWidget::setItemExpanded(const QTreeWidgetItem *item, bool expand)
 {
     Q_D(QTreeWidget);
-    QTreeModel::SkipSorting skipSorting(d->model());
+    QTreeModel::SkipSorting skipSorting(d->treeModel());
     setExpanded(d->index(item), expand);
 }
 
@@ -3134,7 +3131,7 @@ void QTreeWidget::setItemExpanded(const QTreeWidgetItem *item, bool expand)
 bool QTreeWidget::isFirstItemColumnSpanned(const QTreeWidgetItem *item) const
 {
     Q_D(const QTreeWidget);
-    if (item == d->model()->headerItem)
+    if (item == d->treeModel()->headerItem)
         return false; // We can't set the header items to spanning
     const QModelIndex index = d->index(item);
     return isFirstColumnSpanned(index.row(), index.parent());
@@ -3151,7 +3148,7 @@ bool QTreeWidget::isFirstItemColumnSpanned(const QTreeWidgetItem *item) const
 void QTreeWidget::setFirstItemColumnSpanned(const QTreeWidgetItem *item, bool span)
 {
     Q_D(QTreeWidget);
-    if (item == d->model()->headerItem)
+    if (item == d->treeModel()->headerItem)
         return; // We can't set header items to spanning
     const QModelIndex index = d->index(item);
     setFirstColumnSpanned(index.row(), index.parent(), span);
@@ -3165,7 +3162,7 @@ void QTreeWidget::setFirstItemColumnSpanned(const QTreeWidgetItem *item, bool sp
 QTreeWidgetItem *QTreeWidget::itemAbove(const QTreeWidgetItem *item) const
 {
     Q_D(const QTreeWidget);
-    if (item == d->model()->headerItem)
+    if (item == d->treeModel()->headerItem)
         return 0;
     const QModelIndex index = d->index(item);
     const QModelIndex above = indexAbove(index);
@@ -3180,7 +3177,7 @@ QTreeWidgetItem *QTreeWidget::itemAbove(const QTreeWidgetItem *item) const
 QTreeWidgetItem *QTreeWidget::itemBelow(const QTreeWidgetItem *item) const
 {
     Q_D(const QTreeWidget);
-    if (item == d->model()->headerItem)
+    if (item == d->treeModel()->headerItem)
         return 0;
     const QModelIndex index = d->index(item);
     const QModelIndex below = indexBelow(index);
@@ -3220,7 +3217,7 @@ void QTreeWidget::scrollToItem(const QTreeWidgetItem *item, QAbstractItemView::S
 void QTreeWidget::expandItem(const QTreeWidgetItem *item)
 {
     Q_D(QTreeWidget);
-    QTreeModel::SkipSorting skipSorting(d->model());
+    QTreeModel::SkipSorting skipSorting(d->treeModel());
     expand(d->index(item));
 }
 
@@ -3233,7 +3230,7 @@ void QTreeWidget::expandItem(const QTreeWidgetItem *item)
 void QTreeWidget::collapseItem(const QTreeWidgetItem *item)
 {
     Q_D(QTreeWidget);
-    QTreeModel::SkipSorting skipSorting(d->model());
+    QTreeModel::SkipSorting skipSorting(d->treeModel());
     collapse(d->index(item));
 }
 
@@ -3250,7 +3247,7 @@ void QTreeWidget::clear()
 {
     Q_D(QTreeWidget);
     selectionModel()->clear();
-    d->model()->clear();
+    d->treeModel()->clear();
 }
 
 /*!
@@ -3275,7 +3272,7 @@ QStringList QTreeWidget::mimeTypes() const
 QMimeData *QTreeWidget::mimeData(const QList<QTreeWidgetItem*> items) const
 {
     Q_D(const QTreeWidget);
-    if (d->model()->cachedIndexes.isEmpty()) {
+    if (d->treeModel()->cachedIndexes.isEmpty()) {
         QList<QModelIndex> indexes;
         for (int i = 0; i < items.count(); ++i) {
             QTreeWidgetItem *item = items.at(i);
@@ -3283,9 +3280,9 @@ QMimeData *QTreeWidget::mimeData(const QList<QTreeWidgetItem*> items) const
                 indexes << indexFromItem(item, c);
             }
         }
-        return model()->QAbstractItemModel::mimeData(indexes);
+        return d->model->QAbstractItemModel::mimeData(indexes);
     }
-    return d->model()->internalMimeData();
+    return d->treeModel()->internalMimeData();
 }
 
 /*!
@@ -3429,7 +3426,7 @@ bool QTreeWidget::event(QEvent *e)
 {
     Q_D(QTreeWidget);
     if (e->type() == QEvent::Polish)
-        d->model()->executePendingSort();
+        d->treeModel()->executePendingSort();
     return QTreeView::event(e);
 }
 
diff --git a/src/gui/itemviews/qtreewidget_p.h b/src/gui/itemviews/qtreewidget_p.h
index a089cf5..fb0ee11 100644
--- a/src/gui/itemviews/qtreewidget_p.h
+++ b/src/gui/itemviews/qtreewidget_p.h
@@ -219,12 +219,11 @@ class QTreeWidgetPrivate : public QTreeViewPrivate
     Q_DECLARE_PUBLIC(QTreeWidget)
 public:
     QTreeWidgetPrivate() : QTreeViewPrivate(), explicitSortColumn(-1) {}
-    inline QTreeModel *model() const
-        { return qobject_cast<QTreeModel*>(q_func()->model()); }
+    inline QTreeModel *treeModel() const { return qobject_cast<QTreeModel*>(model); }
     inline QModelIndex index(const QTreeWidgetItem *item, int column = 0) const
-        { return model()->index(item, column); }
+        { return treeModel()->index(item, column); }
     inline QTreeWidgetItem *item(const QModelIndex &index) const
-        { return model()->item(index); }
+        { return treeModel()->item(index); }
     void _q_emitItemPressed(const QModelIndex &index);
     void _q_emitItemClicked(const QModelIndex &index);
     void _q_emitItemDoubleClicked(const QModelIndex &index);
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index c072c4a..36210e7 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -506,8 +506,6 @@ QWidgetList * qt_modal_stack=0;                // stack of modal widgets
 */
 void QApplicationPrivate::process_cmdline()
 {
-    Q_Q(QApplication);
-    Q_UNUSED(q);// only static members being used.
     // process platform-indep command line
     if (!qt_is_gui_used || !argc)
         return;
@@ -552,7 +550,7 @@ void QApplicationPrivate::process_cmdline()
 #endif
         } else if (qstrcmp(arg, "-reverse") == 0) {
             force_reverse = true;
-            q->setLayoutDirection(Qt::RightToLeft);
+            QApplication::setLayoutDirection(Qt::RightToLeft);
         } else if (qstrcmp(arg, "-widgetcount") == 0) {
             widgetCount = true;
         } else if (arg == "-graphicssystem" && i < argc-1) {
@@ -2596,14 +2594,14 @@ void QApplicationPrivate::dispatchEnterLeave(QWidget* enter, QWidget* leave) {
     QEvent leaveEvent(QEvent::Leave);
     for (int i = 0; i < leaveList.size(); ++i) {
         w = leaveList.at(i);
-        if (!qApp->activeModalWidget() || QApplicationPrivate::tryModalHelper(w, 0)) {
+        if (!QApplication::activeModalWidget() || QApplicationPrivate::tryModalHelper(w, 0)) {
 #if defined(Q_WS_WIN) || defined(Q_WS_X11)
             if (leaveAfterRelease == w)
                 leaveAfterRelease = 0;
 #endif
             QApplication::sendEvent(w, &leaveEvent);
             if (w->testAttribute(Qt::WA_Hover) &&
-                (!qApp->activePopupWidget() || qApp->activePopupWidget() == w->window())) {
+                (!QApplication::activePopupWidget() || QApplication::activePopupWidget() == w->window())) {
                 Q_ASSERT(instance());
                 QHoverEvent he(QEvent::HoverLeave, QPoint(-1, -1), w->mapFromGlobal(QApplicationPrivate::instance()->hoverGlobalPos));
                 qApp->d_func()->notify_helper(w, &he);
@@ -2614,10 +2612,10 @@ void QApplicationPrivate::dispatchEnterLeave(QWidget* enter, QWidget* leave) {
     QEvent enterEvent(QEvent::Enter);
     for (int i = 0; i < enterList.size(); ++i) {
         w = enterList.at(i);
-        if (!qApp->activeModalWidget() || QApplicationPrivate::tryModalHelper(w, 0)) {
+        if (!QApplication::activeModalWidget() || QApplicationPrivate::tryModalHelper(w, 0)) {
             QApplication::sendEvent(w, &enterEvent);
             if (w->testAttribute(Qt::WA_Hover) &&
-                (!qApp->activePopupWidget() || qApp->activePopupWidget() == w->window())) {
+                (!QApplication::activePopupWidget() || QApplication::activePopupWidget() == w->window())) {
                 QHoverEvent he(QEvent::HoverEnter, w->mapFromGlobal(posEnter), QPoint(-1, -1));
                 qApp->d_func()->notify_helper(w, &he);
             }
@@ -2691,7 +2689,7 @@ bool QApplicationPrivate::isBlockedByModal(QWidget *widget)
     widget = widget->window();
     if (!modalState())
         return false;
-    if (qApp->activePopupWidget() == widget)
+    if (QApplication::activePopupWidget() == widget)
         return false;
 
     for (int i = 0; i < qt_modal_stack->size(); ++i) {
@@ -2780,7 +2778,7 @@ bool QApplicationPrivate::isBlockedByModal(QWidget *widget)
 void QApplicationPrivate::enterModal(QWidget *widget)
 {
     QSet<QWidget*> blocked;
-    QList<QWidget*> windows = qApp->topLevelWidgets();
+    QList<QWidget*> windows = QApplication::topLevelWidgets();
     for (int i = 0; i < windows.count(); ++i) {
         QWidget *window = windows.at(i);
         if (window->windowType() != Qt::Tool && isBlockedByModal(window))
@@ -2789,7 +2787,7 @@ void QApplicationPrivate::enterModal(QWidget *widget)
 
     enterModal_sys(widget);
 
-    windows = qApp->topLevelWidgets();
+    windows = QApplication::topLevelWidgets();
     QEvent e(QEvent::WindowBlocked);
     for (int i = 0; i < windows.count(); ++i) {
         QWidget *window = windows.at(i);
@@ -2803,7 +2801,7 @@ void QApplicationPrivate::enterModal(QWidget *widget)
 void QApplicationPrivate::leaveModal(QWidget *widget)
 {
     QSet<QWidget*> blocked;
-    QList<QWidget*> windows = qApp->topLevelWidgets();
+    QList<QWidget*> windows = QApplication::topLevelWidgets();
     for (int i = 0; i < windows.count(); ++i) {
         QWidget *window = windows.at(i);
         if (window->windowType() != Qt::Tool && isBlockedByModal(window))
@@ -2812,7 +2810,7 @@ void QApplicationPrivate::leaveModal(QWidget *widget)
 
     leaveModal_sys(widget);
 
-    windows = qApp->topLevelWidgets();
+    windows = QApplication::topLevelWidgets();
     QEvent e(QEvent::WindowUnblocked);
     for (int i = 0; i < windows.count(); ++i) {
         QWidget *window = windows.at(i);
@@ -2835,7 +2833,7 @@ bool QApplicationPrivate::tryModalHelper(QWidget *widget, QWidget **rettop)
         *rettop = top;
 
     // the active popup widget always gets the input event
-    if (qApp->activePopupWidget())
+    if (QApplication::activePopupWidget())
         return true;
 
 #if defined(Q_WS_MAC) && defined(QT_MAC_USE_COCOA)
@@ -2902,7 +2900,7 @@ bool QApplicationPrivate::sendMouseEvent(QWidget *receiver, QMouseEvent *event,
     QPointer<QWidget> receiverGuard = receiver;
     QPointer<QWidget> nativeGuard = nativeWidget;
     QPointer<QWidget> alienGuard = alienWidget;
-    QPointer<QWidget> activePopupWidget = qApp->activePopupWidget();
+    QPointer<QWidget> activePopupWidget = QApplication::activePopupWidget();
 
     const bool graphicsWidget = nativeWidget->testAttribute(Qt::WA_DontShowOnScreen);
 
@@ -3806,7 +3804,7 @@ bool QApplication::notify(QObject *receiver, QEvent *e)
                 QPoint diff = relpos - w->mapFromGlobal(d->hoverGlobalPos);
                 while (w) {
                     if (w->testAttribute(Qt::WA_Hover) &&
-                        (!qApp->activePopupWidget() || qApp->activePopupWidget() == w->window())) {
+                        (!QApplication::activePopupWidget() || QApplication::activePopupWidget() == w->window())) {
                         QHoverEvent he(QEvent::HoverMove, relpos, relpos - diff);
                         d->notify_helper(w, &he);
                     }
@@ -4095,7 +4093,7 @@ bool QApplicationPrivate::notify_helper(QObject *receiver, QEvent * e)
 #if !defined(Q_WS_WINCE) || (defined(GWES_ICONCURS) && !defined(QT_NO_CURSOR))
         // toggle HasMouse widget state on enter and leave
         if ((e->type() == QEvent::Enter || e->type() == QEvent::DragEnter) &&
-            (!qApp->activePopupWidget() || qApp->activePopupWidget() == widget->window()))
+            (!QApplication::activePopupWidget() || QApplication::activePopupWidget() == widget->window()))
             widget->setAttribute(Qt::WA_UnderMouse, true);
         else if (e->type() == QEvent::Leave || e->type() == QEvent::DragLeave)
             widget->setAttribute(Qt::WA_UnderMouse, false);
@@ -4625,9 +4623,9 @@ void QSessionManager::requestPhase2()
     \oldcode
     app.setWinStyleHighlightColor(color);
     \newcode
-    QPalette palette(qApp->palette());
+    QPalette palette(QApplication::palette());
     palette.setColor(QPalette::Highlight, color);
-    qApp->setPalette(palette);
+    QApplication::setPalette(palette);
     \endcode
 */
 
@@ -4646,7 +4644,7 @@ void QSessionManager::requestPhase2()
 /*!
     \fn const QColor &QApplication::winStyleHighlightColor()
 
-    Use qApp->palette().color(QPalette::Active, QPalette::Highlight) instead.
+    Use QApplication::palette().color(QPalette::Active, QPalette::Highlight) instead.
 */
 
 /*!
diff --git a/src/gui/kernel/qapplication_win.cpp b/src/gui/kernel/qapplication_win.cpp
index 4ecf299..25288f4 100644
--- a/src/gui/kernel/qapplication_win.cpp
+++ b/src/gui/kernel/qapplication_win.cpp
@@ -1558,13 +1558,13 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
             int index = QApplication::staticMetaObject.indexOfSignal("aboutToQuit()");
             qApp->qt_metacall(QMetaObject::InvokeMetaMethod, index,0);
             // since the process will be killed immediately quit() has no real effect
-            qApp->quit();
+            QApplication::quit();
         }
 
         RETURN(0);
     }
     case WM_DISPLAYCHANGE:
-        if (qApp->type() == QApplication::Tty)
+        if (QApplication::type() == QApplication::Tty)
             break;
         if (qt_desktopWidget) {
             qt_desktopWidget->move(GetSystemMetrics(76), GetSystemMetrics(77));
@@ -1590,7 +1590,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
         }
 #endif
         // ignore spurious XP message when user logs in again after locking
-        if (qApp->type() == QApplication::Tty)
+        if (QApplication::type() == QApplication::Tty)
             break;
         if (QApplication::desktopSettingsAware() && wParam != SPI_SETWORKAREA) {
             widget = (QETWidget*)QWidget::find(hwnd);
@@ -1613,7 +1613,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
 
         if (wParam == SPI_SETFONTSMOOTHINGTYPE) {
             qt_win_read_cleartype_settings();
-            foreach (QWidget *w, qApp->topLevelWidgets()) {
+            foreach (QWidget *w, QApplication::topLevelWidgets()) {
                 if (!w->isVisible())
                     continue;
                 ((QETWidget *) w)->forceUpdate();
@@ -1622,7 +1622,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
 
         break;
     case WM_SYSCOLORCHANGE:
-        if (qApp->type() == QApplication::Tty)
+        if (QApplication::type() == QApplication::Tty)
             break;
         if (QApplication::desktopSettingsAware()) {
             widget = (QETWidget*)QWidget::find(hwnd);
@@ -1674,7 +1674,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
         RETURN(res);
 
     if (qt_is_translatable_mouse_event(message)) {
-        if (qApp->activePopupWidget() != 0) { // in popup mode
+        if (QApplication::activePopupWidget() != 0) { // in popup mode
             POINT curPos = msg.pt;
             QWidget* w = QApplication::widgetAt(curPos.x, curPos.y);
             if (w)
@@ -1684,9 +1684,9 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
         if (!qt_tabletChokeMouse) {
             result = widget->translateMouseEvent(msg);        // mouse event
 #if defined(Q_WS_WINCE) && !defined(QT_NO_CONTEXTMENU)
-            if (message == WM_LBUTTONDOWN && widget != qApp->activePopupWidget()) {
+            if (message == WM_LBUTTONDOWN && widget != QApplication::activePopupWidget()) {
                 QWidget* alienWidget = widget;
-                if ((alienWidget != qApp->activePopupWidget()) && (alienWidget->contextMenuPolicy() != Qt::PreventContextMenu)) {
+                if ((alienWidget != QApplication::activePopupWidget()) && (alienWidget->contextMenuPolicy() != Qt::PreventContextMenu)) {
                     QPoint pos(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
                     QPoint globalPos(msg.pt.x, msg.pt.y);
                     // In case we are using Alien, then the widget to
@@ -1705,8 +1705,8 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
                         shrg.dwFlags = SHRG_RETURNCMD | SHRG_NOANIMATION;
                         resolveAygLibs();
                         if (ptrRecognizeGesture && (ptrRecognizeGesture(&shrg) == GN_CONTEXTMENU)) {
-                            if (qApp->activePopupWidget())
-                                qApp->activePopupWidget()->close();
+                            if (QApplication::activePopupWidget())
+                                QApplication::activePopupWidget()->close();
                             QContextMenuEvent e(QContextMenuEvent::Mouse, pos, globalPos);
                             result = qt_sendSpontaneousEvent(alienWidget, &e);
                         }
@@ -1787,7 +1787,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
                 widget = (QETWidget*)QApplication::activePopupWidget()->focusWidget()
                        ? (QETWidget*)QApplication::activePopupWidget()->focusWidget()
                        : (QETWidget*)QApplication::activePopupWidget();
-            else if (qApp->focusWidget())
+            else if (QApplication::focusWidget())
                 widget = (QETWidget*)QApplication::focusWidget();
             else if (!widget || widget->internalWinId() == GetFocus()) // We faked the message to go to exactly that widget.
                 widget = (QETWidget*)widget->window();
@@ -1910,8 +1910,8 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
                             QWidget *g = QWidget::keyboardGrabber();
                             if (g)
                                 widget = (QETWidget*)g;
-                            else if (qApp->focusWidget())
-                                widget = (QETWidget*)qApp->focusWidget();
+                            else if (QApplication::focusWidget())
+                                widget = (QETWidget*)QApplication::focusWidget();
                             else
                                 widget = (QETWidget*)widget->window();
                             if (widget->isEnabled()) {
@@ -2026,7 +2026,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
         }
 
         case WM_SETTINGCHANGE:
-            if ( qApp->type() == QApplication::Tty )
+            if ( QApplication::type() == QApplication::Tty )
                 break;
 
             if (!msg.wParam) {
@@ -2039,7 +2039,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
                 }
             }
             else if (msg.wParam == SPI_SETICONTITLELOGFONT) {
-                if (qApp->desktopSettingsAware()) {
+                if (QApplication::desktopSettingsAware()) {
                     widget = (QETWidget*)QWidget::find(hwnd);
                     if (widget && !widget->parentWidget()) {
                         qt_set_windows_font_resources();
@@ -2082,7 +2082,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
             break;
 
         case WM_ACTIVATE:
-            if ( qApp->type() == QApplication::Tty )
+            if ( QApplication::type() == QApplication::Tty )
                 break;
 
             if (ptrWTOverlap && ptrWTEnable) {
@@ -2311,12 +2311,12 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
 
                 QWidget *fw = QWidget::keyboardGrabber();
                 if (!fw) {
-                    if (qApp->activePopupWidget())
-                        fw = (qApp->activePopupWidget()->focusWidget()
-                                                  ? qApp->activePopupWidget()->focusWidget()
-                                                  : qApp->activePopupWidget());
-                    else if (qApp->focusWidget())
-                        fw = qApp->focusWidget();
+                    if (QApplication::activePopupWidget())
+                        fw = (QApplication::activePopupWidget()->focusWidget()
+                                                  ? QApplication::activePopupWidget()->focusWidget()
+                                                  : QApplication::activePopupWidget());
+                    else if (QApplication::focusWidget())
+                        fw = QApplication::focusWidget();
                     else if (widget)
                         fw = widget->window();
                 }
@@ -2333,7 +2333,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
         case WM_IME_STARTCOMPOSITION:
         case WM_IME_ENDCOMPOSITION:
         case WM_IME_COMPOSITION: {
-            QWidget *fw = qApp->focusWidget();
+            QWidget *fw = QApplication::focusWidget();
             QWinInputContext *im = fw ? qobject_cast<QWinInputContext *>(fw->inputContext()) : 0;
             if (fw && im) {
                 if(message == WM_IME_STARTCOMPOSITION)
@@ -2366,7 +2366,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
         case WM_GETOBJECT:
             {
                 // Ignoring all requests while starting up
-                if (qApp->startingUp() || qApp->closingDown() || (DWORD)lParam != OBJID_CLIENT) {
+                if (QApplication::startingUp() || QApplication::closingDown() || (DWORD)lParam != OBJID_CLIENT) {
                     result = false;
                     break;
                 }
@@ -2466,7 +2466,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
         case WM_KILLFOCUS:
             if (!QWidget::find((HWND)wParam)) { // we don't get focus, so unset it now
                 if (!widget->hasFocus()) // work around Windows bug after minimizing/restoring
-                    widget = (QETWidget*)qApp->focusWidget();
+                    widget = (QETWidget*)QApplication::focusWidget();
                 HWND focus = ::GetFocus();
                 //if there is a current widget and the new widget belongs to the same toplevel window
                 //or if the current widget was embedded into non-qt window (i.e. we won't get WM_ACTIVATEAPP)
@@ -2485,16 +2485,16 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
             }
             break;
         case WM_THEMECHANGED:
-            if ((widget->windowType() == Qt::Desktop) || !qApp || qApp->closingDown()
-                                                         || qApp->type() == QApplication::Tty)
+            if ((widget->windowType() == Qt::Desktop) || !qApp || QApplication::closingDown()
+                                                         || QApplication::type() == QApplication::Tty)
                 break;
 
             if (widget->testAttribute(Qt::WA_WState_Polished))
-                qApp->style()->unpolish(widget);
+                QApplication::style()->unpolish(widget);
 
             if (widget->testAttribute(Qt::WA_WState_Polished))
-                qApp->style()->polish(widget);
-            widget->repolishStyle(*qApp->style());
+                QApplication::style()->polish(widget);
+            widget->repolishStyle(*QApplication::style());
             if (widget->isVisible())
                 widget->update();
             break;
@@ -2783,9 +2783,9 @@ void QApplicationPrivate::openPopup(QWidget *popup)
     if (popup->focusWidget()) {
         popup->focusWidget()->setFocus(Qt::PopupFocusReason);
     } else if (QApplicationPrivate::popupWidgets->count() == 1) { // this was the first popup
-        if (QWidget *fw = q_func()->focusWidget()) {
+        if (QWidget *fw = QApplication::focusWidget()) {
             QFocusEvent e(QEvent::FocusOut, Qt::PopupFocusReason);
-            q_func()->sendEvent(fw, &e);
+            QApplication::sendEvent(fw, &e);
         }
     }
 }
@@ -2812,13 +2812,13 @@ void QApplicationPrivate::closePopup(QWidget *popup)
         if (!qt_nograb())                        // grabbing not disabled
             releaseAutoCapture();
         QWidget *fw = QApplicationPrivate::active_window ? QApplicationPrivate::active_window->focusWidget()
-            : q_func()->focusWidget();
+            : QApplication::focusWidget();
         if (fw) {
-            if (fw != q_func()->focusWidget()) {
+            if (fw != QApplication::focusWidget()) {
                 fw->setFocus(Qt::PopupFocusReason);
             } else {
                 QFocusEvent e(QEvent::FocusIn, Qt::PopupFocusReason);
-                q_func()->sendEvent(fw, &e);
+                QApplication::sendEvent(fw, &e);
             }
         }
     } else {
@@ -3082,7 +3082,7 @@ bool QETWidget::translateMouseEvent(const MSG &msg)
 
         HWND id = effectiveWinId();
         QWidget *mouseGrabber = QWidget::mouseGrabber();
-        QWidget *activePopupWidget = qApp->activePopupWidget();
+        QWidget *activePopupWidget = QApplication::activePopupWidget();
         if (mouseGrabber) {
             if (!activePopupWidget || (activePopupWidget == this && !rect().contains(widgetPos)))
                 id = mouseGrabber->effectiveWinId();
@@ -3175,7 +3175,7 @@ bool QETWidget::translateMouseEvent(const MSG &msg)
             return false;
 
         replayPopupMouseEvent = false;
-        QWidget* activePopupWidget = qApp->activePopupWidget();
+        QWidget* activePopupWidget = QApplication::activePopupWidget();
         QWidget *target = activePopupWidget;
         const QPoint globalPos(gpos.x, gpos.y);
 
@@ -3233,7 +3233,7 @@ bool QETWidget::translateMouseEvent(const MSG &msg)
         }
 
         if (type == QEvent::MouseButtonPress
-            && qApp->activePopupWidget() != activePopupWidget
+            && QApplication::activePopupWidget() != activePopupWidget
             && replayPopupMouseEvent) {
             // the popup dissappeared. Replay the event
             QWidget* w = QApplication::widgetAt(gpos.x, gpos.y);
@@ -3250,7 +3250,7 @@ bool QETWidget::translateMouseEvent(const MSG &msg)
                 winPostMessage(hwndTarget, msg.message, msg.wParam, lParam);
             }
         } else if (type == QEvent::MouseButtonRelease && button == Qt::RightButton
-                && qApp->activePopupWidget() == activePopupWidget) {
+                && QApplication::activePopupWidget() == activePopupWidget) {
             // popup still alive and received right-button-release
 #if !defined(QT_NO_CONTEXTMENU)
             QContextMenuEvent e2(QContextMenuEvent::Mouse, pos, globalPos,
@@ -3360,7 +3360,7 @@ bool QETWidget::translateWheelEvent(const MSG &msg)
 
     // send the event to the widget or its ancestors
     {
-        QWidget* popup = qApp->activePopupWidget();
+        QWidget* popup = QApplication::activePopupWidget();
         if (popup && w->window() != popup)
             popup->close();
 #ifndef QT_NO_WHEELEVENT
@@ -3376,8 +3376,8 @@ bool QETWidget::translateWheelEvent(const MSG &msg)
     }
 
     // send the event to the widget that has the focus or its ancestors, if different
-    if (w != qApp->focusWidget() && (w = qApp->focusWidget())) {
-        QWidget* popup = qApp->activePopupWidget();
+    if (w != QApplication::focusWidget() && (w = QApplication::focusWidget())) {
+        QWidget* popup = QApplication::activePopupWidget();
         if (popup && w->window() != popup)
             popup->close();
 #ifndef QT_NO_WHEELEVENT
diff --git a/src/gui/kernel/qcursor.cpp b/src/gui/kernel/qcursor.cpp
index 598f4ba..4ffa8fd 100644
--- a/src/gui/kernel/qcursor.cpp
+++ b/src/gui/kernel/qcursor.cpp
@@ -403,7 +403,7 @@ void QCursorData::initialize()
 QCursor::QCursor()
 {
     if (!QCursorData::initialized) {
-        if (qApp->startingUp()) {
+        if (QApplication::startingUp()) {
             d = 0;
             return;
         }
diff --git a/src/gui/kernel/qdnd.cpp b/src/gui/kernel/qdnd.cpp
index a5092a0..e83a2ae 100644
--- a/src/gui/kernel/qdnd.cpp
+++ b/src/gui/kernel/qdnd.cpp
@@ -368,7 +368,7 @@ QDragManager::~QDragManager()
 
 QDragManager *QDragManager::self()
 {
-    if (!instance && qApp && !qApp->closingDown())
+    if (!instance && !QApplication::closingDown())
         instance = new QDragManager;
     return instance;
 }
diff --git a/src/gui/kernel/qdnd_win.cpp b/src/gui/kernel/qdnd_win.cpp
index 8bf5c84..b8c65e8 100644
--- a/src/gui/kernel/qdnd_win.cpp
+++ b/src/gui/kernel/qdnd_win.cpp
@@ -549,7 +549,7 @@ QOleDropSource::QueryContinueDrag(BOOL fEscapePressed, DWORD grfKeyState)
                 return ResultFromScode(DRAGDROP_S_DROP);
         }
 #endif
-        qApp->processEvents();
+        QApplication::processEvents();
         return NOERROR;
     }
 }
diff --git a/src/gui/kernel/qshortcutmap.cpp b/src/gui/kernel/qshortcutmap.cpp
index 3c2fcdd..735fe0f 100644
--- a/src/gui/kernel/qshortcutmap.cpp
+++ b/src/gui/kernel/qshortcutmap.cpp
@@ -628,13 +628,13 @@ QKeySequence::SequenceMatch QShortcutMap::matches(const QKeySequence &seq1,
 bool QShortcutMap::correctContext(const QShortcutEntry &item) const {
     Q_ASSERT_X(item.owner, "QShortcutMap", "Shortcut has no owner. Illegal map state!");
 
-    QWidget *active_window = qApp->activeWindow();
+    QWidget *active_window = QApplication::activeWindow();
 
     // popups do not become the active window,
     // so we fake it here to get the correct context
     // for the shortcut system.
-    if (qApp->activePopupWidget())
-        active_window = qApp->activePopupWidget();
+    if (QApplication::activePopupWidget())
+        active_window = QApplication::activePopupWidget();
 
     if (!active_window)
         return false;
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index dfbd647..a1daf46 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -1055,7 +1055,7 @@ void QWidgetPrivate::adjustFlags(Qt::WindowFlags &flags, QWidget *w)
 void QWidgetPrivate::init(QWidget *parentWidget, Qt::WindowFlags f)
 {
     Q_Q(QWidget);
-    if (qApp->type() == QApplication::Tty)
+    if (QApplication::type() == QApplication::Tty)
         qFatal("QWidget: Cannot create a QWidget when no GUI is being used");
 
     Q_ASSERT(uncreatedWidgets);
@@ -1070,7 +1070,7 @@ void QWidgetPrivate::init(QWidget *parentWidget, Qt::WindowFlags f)
     q->data = &data;
 
 #ifndef QT_NO_THREAD
-    if (!q->parent()) {
+    if (!parent) {
         Q_ASSERT_X(q->thread() == qApp->thread(), "QWidget",
                    "Widgets must be created in the GUI thread.");
     }
@@ -1348,7 +1348,7 @@ QWidget::~QWidget()
 #ifdef QT3_SUPPORT
     if (QApplicationPrivate::main_widget == this) {        // reset main widget
         QApplicationPrivate::main_widget = 0;
-        qApp->quit();
+        QApplication::quit();
     }
 #endif
 
@@ -2037,8 +2037,8 @@ void QWidgetPrivate::deactivateWidgetCleanup()
 {
     Q_Q(QWidget);
     // If this was the active application window, reset it
-    if (qApp->activeWindow() == q)
-        qApp->setActiveWindow(0);
+    if (QApplication::activeWindow() == q)
+        QApplication::setActiveWindow(0);
     // If the is the active mouse press widget, reset it
     if (q == qt_button_down)
         qt_button_down = 0;
@@ -2239,7 +2239,7 @@ QStyle *QWidget::style() const
 
     if (d->extra && d->extra->style)
         return d->extra->style;
-    return qApp->style();
+    return QApplication::style();
 }
 
 /*!
@@ -4996,7 +4996,7 @@ void QWidgetPrivate::drawWidget(QPaintDevice *pdev, const QRegion &rgn, const QP
                     QPoint scrollAreaOffset;
 
 #ifndef QT_NO_SCROLLAREA
-                    QAbstractScrollArea *scrollArea = qobject_cast<QAbstractScrollArea *>(q->parent());
+                    QAbstractScrollArea *scrollArea = qobject_cast<QAbstractScrollArea *>(parent);
                     if (scrollArea && scrollArea->viewport() == q) {
                         QObjectData *scrollPrivate = static_cast<QWidget *>(scrollArea)->d_ptr;
                         QAbstractScrollAreaPrivate *priv = static_cast<QAbstractScrollAreaPrivate *>(scrollPrivate);
@@ -5375,7 +5375,7 @@ QIcon QWidget::windowIcon() const
             return *d->extra->topextra->icon;
         w = w->parentWidget();
     }
-    return qApp->windowIcon();
+    return QApplication::windowIcon();
 }
 
 void QWidgetPrivate::setWindowIcon_helper()
@@ -5897,7 +5897,7 @@ QWidget *QWidget::previousInFocusChain() const
 bool QWidget::isActiveWindow() const
 {
     QWidget *tlw = window();
-    if(tlw == qApp->activeWindow() || (isVisible() && (tlw->windowType() == Qt::Popup)))
+    if(tlw == QApplication::activeWindow() || (isVisible() && (tlw->windowType() == Qt::Popup)))
         return true;
 
 #ifndef QT_NO_GRAPHICSVIEW
@@ -5918,7 +5918,7 @@ bool QWidget::isActiveWindow() const
            !tlw->isModal() &&
            (!tlw->parentWidget() || tlw->parentWidget()->isActiveWindow()))
            return true;
-        QWidget *w = qApp->activeWindow();
+        QWidget *w = QApplication::activeWindow();
         while(w && tlw->windowType() == Qt::Tool &&
               !w->isModal() && w->parentWidget()) {
             w = w->parentWidget()->window();
@@ -7088,7 +7088,7 @@ bool QWidgetPrivate::close_helper(CloseMode mode)
 
 #ifdef QT3_SUPPORT
     if (isMain)
-        qApp->quit();
+        QApplication::quit();
 #endif
     // Attempt to close the application only if this widget has the
     // WA_QuitOnClose flag set set and has a non-visible parent
@@ -7271,10 +7271,10 @@ QSize QWidgetPrivate::adjustedSize() const
 
     if (q->isWindow()) {
         Qt::Orientations exp;
-        if (QLayout *l = q->layout()) {
-            if (l->hasHeightForWidth())
-                s.setHeight(l->totalHeightForWidth(s.width()));
-            exp = l->expandingDirections();
+        if (layout) {
+            if (layout->hasHeightForWidth())
+                s.setHeight(layout->totalHeightForWidth(s.width()));
+            exp = layout->expandingDirections();
         } else
         {
             if (q->sizePolicy().hasHeightForWidth())
@@ -7791,7 +7791,7 @@ bool QWidget::event(QEvent *event)
             QList<QObject*> childList = d->children;
             for (int i = 0; i < childList.size(); ++i) {
                 QObject *o = childList.at(i);
-                if (o != qApp->activeModalWidget()) {
+                if (o != QApplication::activeModalWidget()) {
                     if (qobject_cast<QWidget *>(o) && static_cast<QWidget *>(o)->isWindow()) {
                         // do not forward the event to child windows,
                         // QApplication does this for us
@@ -8017,9 +8017,9 @@ void QWidget::mousePressEvent(QMouseEvent *event)
     if ((windowType() == Qt::Popup)) {
         event->accept();
         QWidget* w;
-        while ((w = qApp->activePopupWidget()) && w != this){
+        while ((w = QApplication::activePopupWidget()) && w != this){
             w->close();
-            if (qApp->activePopupWidget() == w) // widget does not want to dissappear
+            if (QApplication::activePopupWidget() == w) // widget does not want to dissappear
                 w->hide(); // hide at least
         }
         if (!rect().contains(event->pos())){
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index bd671c8..c65fc53 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -133,10 +133,6 @@ struct QTLWExtra {
     uint embedded : 1;
 
     // *************************** Platform specific values (bit fields first) **********
-#ifndef QT_NO_XSYNC
-    int newCounterValueHi : 32;
-    uint newCounterValueLo : 32;
-#endif
 #if defined(Q_WS_X11) // <----------------------------------------------------------- X11
     uint spont_unmapped: 1; // window was spontaneously unmapped
     uint dnd : 1; // DND properties installed
@@ -145,6 +141,12 @@ struct QTLWExtra {
     WId parentWinId; // parent window Id (valid after reparenting)
     WId userTimeWindow; // window id that contains user-time timestamp when WM supports a _NET_WM_USER_TIME_WINDOW atom
     QPoint fullScreenOffset;
+#ifndef QT_NO_XSYNC
+    WId syncUpdateCounter;
+    ulong syncRequestTimestamp;
+    qint32 newCounterValueHi;
+    quint32 newCounterValueLo;
+#endif
 #elif defined(Q_WS_WIN) // <--------------------------------------------------------- WIN
     HICON winIconBig; // internal big Windows icon
     HICON winIconSmall; // internal small Windows icon
@@ -162,10 +164,6 @@ struct QTLWExtra {
     QWSManager *qwsManager;
 #endif
 #endif
-#ifndef QT_NO_XSYNC
-    WId syncUpdateCounter;
-    ulong syncRequestTimestamp;
-#endif
 };
 
 struct QWExtra {
diff --git a/src/gui/kernel/qwidget_win.cpp b/src/gui/kernel/qwidget_win.cpp
index 1b3cfed..612a093 100644
--- a/src/gui/kernel/qwidget_win.cpp
+++ b/src/gui/kernel/qwidget_win.cpp
@@ -1039,7 +1039,7 @@ void QWidget::setWindowState(Qt::WindowStates newstate)
                 if (isVisible())
                     style |= WS_VISIBLE;
                 SetWindowLongA(internalWinId(), GWL_STYLE, style);
-                QRect r = qApp->desktop()->screenGeometry(this);
+                QRect r = QApplication::desktop()->screenGeometry(this);
                 UINT swpf = SWP_FRAMECHANGED;
                 if (newstate & Qt::WindowActive)
                     swpf |= SWP_NOACTIVATE;
@@ -1980,8 +1980,8 @@ public:
     // in
     QOnScreenRasterPaintEngine()
         : QRasterPaintEngine(new QImage(qt_primary_surface_bits,
-                                        qApp->desktop()->width(),
-                                        qApp->desktop()->height(),
+                                        QApplication::desktop()->width(),
+                                        QApplication::desktop()->height(),
                                         qt_primary_surface_stride,
                                         qt_primary_surface_format))
     {
diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp
index 0a3a8dd..25dab4c 100644
--- a/src/gui/painting/qbackingstore.cpp
+++ b/src/gui/painting/qbackingstore.cpp
@@ -758,7 +758,7 @@ void QWidgetBackingStore::paintWindowDecoration()
     engine->setSystemClip(decorationRegion.translated(tlwOffset));
 
     QPainter painter(windowSurface->paintDevice());
-    painter.setFont(qApp->font());
+    painter.setFont(QApplication::font());
     painter.translate(tlwOffset);
 
     const int numDirty = managerPrivate->dirtyRegions.size();
@@ -1347,7 +1347,7 @@ void QWidgetBackingStore::flush(QWidget *widget, QWindowSurface *surface)
 static inline bool discardInvalidateBufferRequest(QWidget *widget, QTLWExtra *tlwExtra)
 {
     Q_ASSERT(widget);
-    if (qApp && qApp->closingDown())
+    if (QApplication::closingDown())
         return true;
 
     if (!tlwExtra || tlwExtra->inTopLevelResize || !tlwExtra->backingStore)
diff --git a/src/gui/painting/qdrawutil.cpp b/src/gui/painting/qdrawutil.cpp
index 230d30b..4020593 100644
--- a/src/gui/painting/qdrawutil.cpp
+++ b/src/gui/painting/qdrawutil.cpp
@@ -1039,7 +1039,7 @@ void qDrawItem(QPainter *p, Qt::GUIStyle gs,
 #endif
 
 /*!
-    \struct QMargins
+    \class QMargins
     \since 4.6
 
     Holds the borders used to split a pixmap into nine segments in order to
@@ -1050,7 +1050,7 @@ void qDrawItem(QPainter *p, Qt::GUIStyle gs,
 */
 
 /*!
-    \struct QTileRules
+    \class QTileRules
     \since 4.6
 
     Holds the rules used to draw a pixmap or image split into nine segments,
diff --git a/src/gui/painting/qpaintengine_mac.cpp b/src/gui/painting/qpaintengine_mac.cpp
index 5889388..3d0a1b7 100644
--- a/src/gui/painting/qpaintengine_mac.cpp
+++ b/src/gui/painting/qpaintengine_mac.cpp
@@ -131,8 +131,8 @@ QMacCGContext::QMacCGContext(QPainter *p)
 
             QPainterState *state = static_cast<QPainterState *>(pe->state);
             Q_ASSERT(state);
-            if (!state->redirection_offset.isNull())
-                CGContextTranslateCTM(context, -state->redirection_offset.x(), -state->redirection_offset.y());
+            if (!state->redirectionMatrix.isIdentity())
+                CGContextTranslateCTM(context, state->redirectionMatrix.dx(), state->redirectionMatrix.dy());
         }
     }
     CGContextRetain(context);
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index 0ece498..528c575 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -414,7 +414,7 @@ void QPainterPrivate::draw_helper(const QPainterPath &originalPath, DrawOperatio
             bool old_txinv = txinv;
             QTransform old_invMatrix = invMatrix;
             txinv = true;
-            invMatrix = state->redirectionMatrix;
+            invMatrix = state->redirectionMatrix.inverted();
             QPainterPath clipPath = q->clipPath();
             QRectF r = clipPath.boundingRect().intersected(absPathRect);
             absPathRect = r.toAlignedRect();
@@ -653,18 +653,7 @@ void QPainterPrivate::updateInvMatrix()
 {
     Q_ASSERT(txinv == false);
     txinv = true;                                // creating inverted matrix
-    QTransform m;
-
-    if (state->VxF)
-        m = viewTransform();
-
-    if (state->WxF) {
-        if (state->VxF)
-            m = state->worldMatrix * m;
-        else
-            m = state->worldMatrix;
-    }
-    invMatrix = m.inverted();                // invert matrix
+    invMatrix = state->matrix.inverted();
 }
 
 void QPainterPrivate::updateEmulationSpecifier(QPainterState *s)
@@ -2569,7 +2558,7 @@ void QPainter::setClipRect(const QRectF &rect, Qt::ClipOperation op)
         QVectorPath vp(pts, 4, 0, QVectorPath::RectangleHint);
         d->state->clipEnabled = true;
         d->extended->clip(vp, op);
-        d->state->clipInfo << QPainterClipInfo(rect, op, combinedTransform());
+        d->state->clipInfo << QPainterClipInfo(rect, op, d->state->matrix);
         d->state->clipOperation = op;
         return;
     }
@@ -2612,7 +2601,7 @@ void QPainter::setClipRect(const QRect &rect, Qt::ClipOperation op)
     if (d->extended) {
         d->state->clipEnabled = true;
         d->extended->clip(rect, op);
-        d->state->clipInfo << QPainterClipInfo(rect, op, combinedTransform());
+        d->state->clipInfo << QPainterClipInfo(rect, op, d->state->matrix);
         d->state->clipOperation = op;
         return;
     }
@@ -2624,7 +2613,7 @@ void QPainter::setClipRect(const QRect &rect, Qt::ClipOperation op)
     d->state->clipOperation = op;
     if (op == Qt::NoClip || op == Qt::ReplaceClip)
         d->state->clipInfo.clear();
-    d->state->clipInfo << QPainterClipInfo(rect, op, combinedTransform());
+    d->state->clipInfo << QPainterClipInfo(rect, op, d->state->matrix);
     d->state->clipEnabled = true;
     d->state->dirtyFlags |= QPaintEngine::DirtyClipRegion | QPaintEngine::DirtyClipEnabled;
     d->updateState(d->state);
@@ -2665,7 +2654,7 @@ void QPainter::setClipRegion(const QRegion &r, Qt::ClipOperation op)
     if (d->extended) {
         d->state->clipEnabled = true;
         d->extended->clip(r, op);
-        d->state->clipInfo << QPainterClipInfo(r, op, combinedTransform());
+        d->state->clipInfo << QPainterClipInfo(r, op, d->state->matrix);
         d->state->clipOperation = op;
         return;
     }
@@ -2677,7 +2666,7 @@ void QPainter::setClipRegion(const QRegion &r, Qt::ClipOperation op)
     d->state->clipOperation = op;
     if (op == Qt::NoClip || op == Qt::ReplaceClip)
         d->state->clipInfo.clear();
-    d->state->clipInfo << QPainterClipInfo(r, op, combinedTransform());
+    d->state->clipInfo << QPainterClipInfo(r, op, d->state->matrix);
     d->state->clipEnabled = true;
     d->state->dirtyFlags |= QPaintEngine::DirtyClipRegion | QPaintEngine::DirtyClipEnabled;
     d->updateState(d->state);
@@ -3062,7 +3051,7 @@ void QPainter::setClipPath(const QPainterPath &path, Qt::ClipOperation op)
     if (d->extended) {
         d->state->clipEnabled = true;
         d->extended->clip(path, op);
-        d->state->clipInfo << QPainterClipInfo(path, op, combinedTransform());
+        d->state->clipInfo << QPainterClipInfo(path, op, d->state->matrix);
         d->state->clipOperation = op;
         return;
     }
@@ -3076,7 +3065,7 @@ void QPainter::setClipPath(const QPainterPath &path, Qt::ClipOperation op)
     d->state->clipOperation = op;
     if (op == Qt::NoClip || op == Qt::ReplaceClip)
         d->state->clipInfo.clear();
-    d->state->clipInfo << QPainterClipInfo(path, op, combinedTransform());
+    d->state->clipInfo << QPainterClipInfo(path, op, d->state->matrix);
     d->state->clipEnabled = true;
     d->state->dirtyFlags |= QPaintEngine::DirtyClipPath | QPaintEngine::DirtyClipEnabled;
     d->updateState(d->state);
diff --git a/src/gui/painting/qpainterpath.cpp b/src/gui/painting/qpainterpath.cpp
index e1bb317..2f3a0cb 100644
--- a/src/gui/painting/qpainterpath.cpp
+++ b/src/gui/painting/qpainterpath.cpp
@@ -2049,7 +2049,7 @@ QPainterPath QPainterPath::translated(qreal dx, qreal dy) const
 }
 
 /*!
-    \fn void QPainterPath::translated(const QPointF &offset)
+    \fn QPainterPath QPainterPath::translated(const QPointF &offset) const;
     \overload
     \since 4.6
 
diff --git a/src/gui/styles/qcleanlooksstyle.cpp b/src/gui/styles/qcleanlooksstyle.cpp
index 805cd05..aff0af3 100644
--- a/src/gui/styles/qcleanlooksstyle.cpp
+++ b/src/gui/styles/qcleanlooksstyle.cpp
@@ -4419,7 +4419,7 @@ QIcon QCleanlooksStyle::standardIconImplementation(StandardPixmap standardIcon,
 {
 #ifdef Q_WS_X11
     Q_D(const QCleanlooksStyle);
-    if (!qApp->desktopSettingsAware())
+    if (!QApplication::desktopSettingsAware())
         return QWindowsStyle::standardIconImplementation(standardIcon, option, widget);
     QIcon icon;
     QPixmap pixmap;
@@ -4588,7 +4588,7 @@ QPixmap QCleanlooksStyle::standardPixmap(StandardPixmap standardPixmap, const QS
 #ifdef Q_WS_X11
     Q_D(const QCleanlooksStyle);
     QPixmap pixmap;
-    if (!qApp->desktopSettingsAware())
+    if (!QApplication::desktopSettingsAware())
         return QWindowsStyle::standardPixmap(standardPixmap, opt, widget);
     d->lookupIconTheme();
 #ifndef QT_NO_IMAGEFORMAT_XPM
diff --git a/src/gui/styles/qcommonstyle.cpp b/src/gui/styles/qcommonstyle.cpp
index 1285598..74eacf6 100644
--- a/src/gui/styles/qcommonstyle.cpp
+++ b/src/gui/styles/qcommonstyle.cpp
@@ -3130,7 +3130,7 @@ QRect QCommonStyle::subElementRect(SubElement sr, const QStyleOption *opt,
                 if (dw->isFloating())
                     icon = dw->windowIcon();
                 if (!icon.isNull()
-                        && icon.cacheKey() != qApp->windowIcon().cacheKey()) {
+                        && icon.cacheKey() != QApplication::windowIcon().cacheKey()) {
                     QSize sz = icon.actualSize(QSize(r.height(), r.height()));
                     if (verticalTitleBar)
                         sz.transpose();
@@ -5309,7 +5309,7 @@ QPixmap QCommonStyle::standardPixmap(StandardPixmap sp, const QStyleOption *opti
 #ifdef Q_WS_X11
     Q_D(const QCommonStyle);
     QPixmap pixmap;
-    if (qApp->desktopSettingsAware()) {
+    if (QApplication::desktopSettingsAware()) {
         d->lookupIconTheme();
         switch (sp) {
         case SP_DirHomeIcon:
@@ -5730,7 +5730,7 @@ QIcon QCommonStyle::standardIconImplementation(StandardPixmap standardIcon, cons
     QIcon icon;
 #ifdef Q_WS_X11
     Q_D(const QCommonStyle);
-    if (qApp->desktopSettingsAware()) {
+    if (QApplication::desktopSettingsAware()) {
         d->lookupIconTheme();
         QPixmap pixmap;
         switch (standardIcon) {
diff --git a/src/gui/styles/qstylefactory.cpp b/src/gui/styles/qstylefactory.cpp
index 70717db..376aa0f 100644
--- a/src/gui/styles/qstylefactory.cpp
+++ b/src/gui/styles/qstylefactory.cpp
@@ -170,7 +170,7 @@ QStyle *QStyleFactory::create(const QString& key)
     else
 #endif
 #ifndef QT_NO_STYLE_MAC
-    if (style.left(9) == QLatin1String("macintosh")) {
+    if (style.startsWith(QLatin1String("macintosh"))) {
         ret = new QMacStyle;
 #  ifdef Q_WS_MAC
         if (style == QLatin1String("macintosh"))
diff --git a/src/gui/styles/qstylesheetstyle.cpp b/src/gui/styles/qstylesheetstyle.cpp
index 9a8f97e..1bbe70e 100644
--- a/src/gui/styles/qstylesheetstyle.cpp
+++ b/src/gui/styles/qstylesheetstyle.cpp
@@ -867,7 +867,7 @@ static QStyle::StandardPixmap subControlIcon(int pe)
 QRenderRule::QRenderRule(const QVector<Declaration> &declarations, const QWidget *widget)
 : features(0), hasFont(false), pal(0), b(0), bg(0), bd(0), ou(0), geo(0), p(0), img(0), clipset(0)
 {
-    QPalette palette = qApp->palette(); // ###: ideally widget's palette
+    QPalette palette = QApplication::palette(); // ###: ideally widget's palette
     ValueExtractor v(declarations, palette);
     features = v.extractStyleFeatures();
 
@@ -2584,7 +2584,7 @@ static void updateWidgets(const QList<const QWidget *>& widgets)
             continue;
         widget->style()->polish(widget);
         QEvent event(QEvent::StyleChange);
-        qApp->sendEvent(widget, &event);
+        QApplication::sendEvent(widget, &event);
         widget->update();
         widget->updateGeometry();
     }
@@ -2630,9 +2630,9 @@ QStyle *QStyleSheetStyle::baseStyle() const
 {
     if (base)
         return base;
-    if (QStyleSheetStyle *me = qobject_cast<QStyleSheetStyle *>(qApp->style()))
+    if (QStyleSheetStyle *me = qobject_cast<QStyleSheetStyle *>(QApplication::style()))
         return me->base;
-    return qApp->style();
+    return QApplication::style();
 }
 
 void QStyleSheetStyle::widgetDestroyed(QObject *o)
@@ -2850,7 +2850,7 @@ void QStyleSheetStyle::drawComplexControl(ComplexControl cc, const QStyleOptionC
                 rule.drawBackgroundImage(p, cmbOpt.rect);
                 rule.configurePalette(&cmbOpt.palette, QPalette::ButtonText, QPalette::Button);
                 bool customDropDown = (opt->subControls & QStyle::SC_ComboBoxArrow)
-                                      && hasStyleRule(w, PseudoElement_ComboBoxDropDown);
+                                && (hasStyleRule(w, PseudoElement_ComboBoxDropDown) || hasStyleRule(w, PseudoElement_ComboBoxArrow));
                 if (customDropDown)
                     cmbOpt.subControls &= ~QStyle::SC_ComboBoxArrow;
                 if (rule.baseStyleCanDraw()) {
@@ -2896,11 +2896,11 @@ void QStyleSheetStyle::drawComplexControl(ComplexControl cc, const QStyleOptionC
             if (rule.hasNativeBorder() && !upRuleMatch && !downRuleMatch) {
                 rule.drawBackgroundImage(p, spinOpt.rect);
                 customUp = (opt->subControls & QStyle::SC_SpinBoxUp)
-                           && hasStyleRule(w, PseudoElement_SpinBoxUpButton);
+                        && (hasStyleRule(w, PseudoElement_SpinBoxUpButton) || hasStyleRule(w, PseudoElement_UpArrow));
                 if (customUp)
                     spinOpt.subControls &= ~QStyle::SC_SpinBoxUp;
                 customDown = (opt->subControls & QStyle::SC_SpinBoxDown)
-                             && hasStyleRule(w, PseudoElement_SpinBoxDownButton);
+                        && (hasStyleRule(w, PseudoElement_SpinBoxDownButton) || hasStyleRule(w, PseudoElement_DownArrow));
                 if (customDown)
                     spinOpt.subControls &= ~QStyle::SC_SpinBoxDown;
                 if (rule.baseStyleCanDraw()) {
@@ -3573,7 +3573,7 @@ void QStyleSheetStyle::drawControl(ControlElement ce, const QStyleOption *opt, Q
                     mi.rect = positionRect(w, subRule, subRule2, PseudoElement_MenuRightArrow, opt->rect, mi.direction);
                     drawPrimitive(arrow, &mi, p, w);
                 }
-            } else if (hasStyleRule(w, PseudoElement_MenuCheckMark)) {
+            } else if (hasStyleRule(w, PseudoElement_MenuCheckMark) || hasStyleRule(w, PseudoElement_MenuRightArrow)) {
                 QWindowsStyle::drawControl(ce, &mi, p, w);
             } else {
                 if (rule.hasDrawable() && !subRule.hasDrawable() && !(opt->state & QStyle::State_Selected)) {
@@ -4339,6 +4339,16 @@ void QStyleSheetStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *op
         pseudoElement = PseudoElement_ScrollAreaCorner;
         break;
 
+    case PE_IndicatorSpinDown:
+    case PE_IndicatorSpinMinus:
+        pseudoElement = PseudoElement_SpinBoxDownArrow;
+        break;
+
+    case PE_IndicatorSpinUp:
+    case PE_IndicatorSpinPlus:
+        pseudoElement = PseudoElement_SpinBoxUpArrow;
+        break;
+
     default:
         break;
     }
diff --git a/src/gui/styles/qwindowsvistastyle.cpp b/src/gui/styles/qwindowsvistastyle.cpp
index 013ca1e..9ea9a03 100644
--- a/src/gui/styles/qwindowsvistastyle.cpp
+++ b/src/gui/styles/qwindowsvistastyle.cpp
@@ -1436,7 +1436,7 @@ void QWindowsVistaStyle::drawControl(ControlElement element, const QStyleOption
 
             if (isFloating) {
                 titleRect.adjust(0, -fw, 0, 0);
-                if (widget != 0 && widget->windowIcon().cacheKey() != qApp->windowIcon().cacheKey())
+                if (widget != 0 && widget->windowIcon().cacheKey() != QApplication::windowIcon().cacheKey())
                     titleRect.adjust(titleRect.height() + mw, 0, 0, 0);
             } else {
                 titleRect.adjust(mw, 0, 0, 0);
@@ -2435,7 +2435,7 @@ void QWindowsVistaStyle::unpolish(QWidget *widget)
     else if (QTreeView *tree = qobject_cast<QTreeView *> (widget)) {
         tree->viewport()->setAttribute(Qt::WA_Hover, false);
     } else if (qobject_cast<QCommandLinkButton*>(widget)) {
-        QFont font = qApp->font("QCommandLinkButton");
+        QFont font = QApplication::font("QCommandLinkButton");
         QFont widgetFont = widget->font();
         widgetFont.setFamily(font.family()); //Only family set by polish
         widget->setFont(widgetFont);
diff --git a/src/gui/styles/qwindowsxpstyle.cpp b/src/gui/styles/qwindowsxpstyle.cpp
index 3dac9f5..b5dfdbd 100644
--- a/src/gui/styles/qwindowsxpstyle.cpp
+++ b/src/gui/styles/qwindowsxpstyle.cpp
@@ -261,7 +261,7 @@ void QWindowsXPStylePrivate::cleanup(bool force)
     use_xp = false;
     cleanupHandleMap();
     if (limboWidget) {
-        if (qApp->closingDown())
+        if (QApplication::closingDown())
             delete limboWidget;
         else
             limboWidget->deleteLater();
@@ -2275,7 +2275,7 @@ void QWindowsXPStyle::drawControl(ControlElement element, const QStyleOption *op
 
             if (isFloating) {
                 titleRect.adjust(0, -fw, 0, 0);
-                if (widget != 0 && widget->windowIcon().cacheKey() != qApp->windowIcon().cacheKey())
+                if (widget != 0 && widget->windowIcon().cacheKey() != QApplication::windowIcon().cacheKey())
                     titleRect.adjust(titleRect.height() + mw, 0, 0, 0);
             } else {
                 titleRect.adjust(mw, 0, 0, 0);
@@ -2322,7 +2322,7 @@ void QWindowsXPStyle::drawControl(ControlElement element, const QStyleOption *op
                 // Figure out maximal button space on title bar
 
                 QIcon ico = widget->windowIcon();
-                bool hasIcon = (ico.cacheKey() != qApp->windowIcon().cacheKey());
+                bool hasIcon = (ico.cacheKey() != QApplication::windowIcon().cacheKey());
                 if (hasIcon) {
                     QPixmap pxIco = ico.pixmap(titleHeight);
                     if (!verticalTitleBar && QApplication::layoutDirection() == Qt::RightToLeft)
diff --git a/src/gui/text/qfontdatabase.cpp b/src/gui/text/qfontdatabase.cpp
index 9c3c4a4..e9f067a 100644
--- a/src/gui/text/qfontdatabase.cpp
+++ b/src/gui/text/qfontdatabase.cpp
@@ -87,34 +87,34 @@ static int getFontWeight(const QString &weightString)
     // Test in decreasing order of commonness
     if (s == QLatin1String("medium") ||
         s == QLatin1String("normal")
-        || s.compare(qApp->translate("QFontDatabase", "Normal"), Qt::CaseInsensitive) == 0)
+        || s.compare(QApplication::translate("QFontDatabase", "Normal"), Qt::CaseInsensitive) == 0)
         return QFont::Normal;
     if (s == QLatin1String("bold")
-        || s.compare(qApp->translate("QFontDatabase", "Bold"), Qt::CaseInsensitive) == 0)
+        || s.compare(QApplication::translate("QFontDatabase", "Bold"), Qt::CaseInsensitive) == 0)
         return QFont::Bold;
     if (s == QLatin1String("demibold") || s == QLatin1String("demi bold")
-        || s.compare(qApp->translate("QFontDatabase", "Demi Bold"), Qt::CaseInsensitive) == 0)
+        || s.compare(QApplication::translate("QFontDatabase", "Demi Bold"), Qt::CaseInsensitive) == 0)
         return QFont::DemiBold;
     if (s == QLatin1String("black")
-        || s.compare(qApp->translate("QFontDatabase", "Black"), Qt::CaseInsensitive) == 0)
+        || s.compare(QApplication::translate("QFontDatabase", "Black"), Qt::CaseInsensitive) == 0)
         return QFont::Black;
     if (s == QLatin1String("light"))
         return QFont::Light;
 
     if (s.contains(QLatin1String("bold"))
-        || s.contains(qApp->translate("QFontDatabase", "Bold"), Qt::CaseInsensitive)) {
+        || s.contains(QApplication::translate("QFontDatabase", "Bold"), Qt::CaseInsensitive)) {
         if (s.contains(QLatin1String("demi"))
-            || s.compare(qApp->translate("QFontDatabase", "Demi"), Qt::CaseInsensitive) == 0)
+            || s.compare(QApplication::translate("QFontDatabase", "Demi"), Qt::CaseInsensitive) == 0)
             return (int) QFont::DemiBold;
         return (int) QFont::Bold;
     }
 
     if (s.contains(QLatin1String("light"))
-        || s.compare(qApp->translate("QFontDatabase", "Light"), Qt::CaseInsensitive) == 0)
+        || s.compare(QApplication::translate("QFontDatabase", "Light"), Qt::CaseInsensitive) == 0)
         return (int) QFont::Light;
 
     if (s.contains(QLatin1String("black"))
-        || s.compare(qApp->translate("QFontDatabase", "Black"), Qt::CaseInsensitive) == 0)
+        || s.compare(QApplication::translate("QFontDatabase", "Black"), Qt::CaseInsensitive) == 0)
         return (int) QFont::Black;
 
     return (int) QFont::Normal;
@@ -251,10 +251,10 @@ QtFontStyle::Key::Key(const QString &styleString)
     weight = getFontWeight(styleString);
 
     if (styleString.contains(QLatin1String("Italic"))
-        || styleString.contains(qApp->translate("QFontDatabase", "Italic")))
+        || styleString.contains(QApplication::translate("QFontDatabase", "Italic")))
         style = QFont::StyleItalic;
     else if (styleString.contains(QLatin1String("Oblique"))
-             || styleString.contains(qApp->translate("QFontDatabase", "Oblique")))
+             || styleString.contains(QApplication::translate("QFontDatabase", "Oblique")))
         style = QFont::StyleOblique;
 }
 
@@ -1249,21 +1249,21 @@ static QString styleStringHelper(int weight, QFont::Style style)
 {
     QString result;
     if (weight >= QFont::Black)
-        result = qApp->translate("QFontDatabase", "Black");
+        result = QApplication::translate("QFontDatabase", "Black");
     else if (weight >= QFont::Bold)
-        result = qApp->translate("QFontDatabase", "Bold");
+        result = QApplication::translate("QFontDatabase", "Bold");
     else if (weight >= QFont::DemiBold)
-        result = qApp->translate("QFontDatabase", "Demi Bold");
+        result = QApplication::translate("QFontDatabase", "Demi Bold");
     else if (weight < QFont::Normal)
-        result = qApp->translate("QFontDatabase", "Light");
+        result = QApplication::translate("QFontDatabase", "Light");
 
     if (style == QFont::StyleItalic)
-        result += QLatin1Char(' ') + qApp->translate("QFontDatabase", "Italic");
+        result += QLatin1Char(' ') + QApplication::translate("QFontDatabase", "Italic");
     else if (style == QFont::StyleOblique)
-        result += QLatin1Char(' ') + qApp->translate("QFontDatabase", "Oblique");
+        result += QLatin1Char(' ') + QApplication::translate("QFontDatabase", "Oblique");
 
     if (result.isEmpty())
-        result = qApp->translate("QFontDatabase", "Normal");
+        result = QApplication::translate("QFontDatabase", "Normal");
 
     return result.simplified();
 }
@@ -2067,7 +2067,7 @@ QString QFontDatabase::writingSystemName(WritingSystem writingSystem)
         Q_ASSERT_X(false, "QFontDatabase::writingSystemName", "invalid 'writingSystem' parameter");
         break;
     }
-    return qApp ? qApp->translate("QFontDatabase", name) : QString::fromLatin1(name);
+    return QApplication::translate("QFontDatabase", name);
 }
 
 
diff --git a/src/gui/text/qtextcontrol.cpp b/src/gui/text/qtextcontrol.cpp
index 0958b52..8573fc9 100644
--- a/src/gui/text/qtextcontrol.cpp
+++ b/src/gui/text/qtextcontrol.cpp
@@ -394,7 +394,7 @@ void QTextControlPrivate::init(Qt::TextFormat format, const QString &text, QText
     Q_Q(QTextControl);
     setContent(format, text, document);
 
-    QWidget *parentWidget = qobject_cast<QWidget*>(q->parent());
+    QWidget *parentWidget = qobject_cast<QWidget*>(parent);
     if (parentWidget) {
         QTextOption opt = doc->defaultTextOption();
         opt.setTextDirection(parentWidget->layoutDirection());
@@ -1712,7 +1712,7 @@ void QTextControlPrivate::mouseDoubleClickEvent(QEvent *e, Qt::MouseButton butto
     selectedWordOnDoubleClick = cursor;
 
     trippleClickPoint = pos;
-    trippleClickTimer.start(qApp->doubleClickInterval(), q);
+    trippleClickTimer.start(QApplication::doubleClickInterval(), q);
     if (doEmit) {
         selectionChanged();
 #ifndef QT_NO_CLIPBOARD
diff --git a/src/gui/text/qtextdocumentlayout.cpp b/src/gui/text/qtextdocumentlayout.cpp
index fa032e6..cf40ad8 100644
--- a/src/gui/text/qtextdocumentlayout.cpp
+++ b/src/gui/text/qtextdocumentlayout.cpp
@@ -3205,18 +3205,16 @@ bool QTextDocumentLayout::contentHasAlignment() const
 
 qreal QTextDocumentLayoutPrivate::scaleToDevice(qreal value) const
 {
-    QPaintDevice *dev = q_func()->paintDevice();
-    if (!dev)
+    if (!paintDevice)
         return value;
-    return value * dev->logicalDpiY() / qreal(qt_defaultDpi());
+    return value * paintDevice->logicalDpiY() / qreal(qt_defaultDpi());
 }
 
 QFixed QTextDocumentLayoutPrivate::scaleToDevice(QFixed value) const
 {
-    QPaintDevice *dev = q_func()->paintDevice();
-    if (!dev)
+    if (!paintDevice)
         return value;
-    return value * QFixed(dev->logicalDpiY()) / QFixed(qt_defaultDpi());
+    return value * QFixed(paintDevice->logicalDpiY()) / QFixed(qt_defaultDpi());
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/text/qtextodfwriter.cpp b/src/gui/text/qtextodfwriter.cpp
index 75e89d2..bc8ac5b 100644
--- a/src/gui/text/qtextodfwriter.cpp
+++ b/src/gui/text/qtextodfwriter.cpp
@@ -295,28 +295,13 @@ void QTextOdfWriter::writeBlock(QXmlStreamWriter &writer, const QTextBlock &bloc
         writer.writeAttribute(textNS, QString::fromLatin1("style-name"), QString::fromLatin1("c%1")
             .arg(frag.fragment().charFormatIndex()));
         bool escapeNextSpace = true;
-        int precedingSpaces = 0, precedingTabs = 0;
+        int precedingSpaces = 0;
         int exportedIndex = 0;
         for (int i=0; i <= fragmentText.count(); ++i) {
-            bool isTab = false, isSpace = false;
-            if (i < fragmentText.count()) {
+            bool isSpace = false;
                 QChar character = fragmentText[i];
-                isTab = character.unicode() == '\t';
                 isSpace = character.unicode() == ' ';
-                if (character.unicode() == 0x2028) { // soft-return
-                    writer.writeCharacters(fragmentText.mid(exportedIndex, i));
-                    writer.writeEmptyElement(textNS, QString::fromLatin1("line-break"));
-                    exportedIndex = i+1;
-                    continue;
-                }
-                if (isSpace) {
-                    ++precedingSpaces;
-                    escapeNextSpace = true;
-                }
-                else if (isTab) {
-                    precedingTabs++;
-                }
-            }
+
             // find more than one space. -> <text:s text:c="2" />
             if (!isSpace && escapeNextSpace && precedingSpaces > 1) {
                 const bool startParag = exportedIndex == 0 && i == precedingSpaces;
@@ -329,17 +314,27 @@ void QTextOdfWriter::writeBlock(QXmlStreamWriter &writer, const QTextBlock &bloc
                 precedingSpaces = 0;
                 exportedIndex = i;
             }
-            // find tabs.   ->  <text:tab text:tab-ref="3" />  or <text:tab/>
-            if (!isTab && precedingTabs) {
-                writer.writeCharacters(fragmentText.mid(exportedIndex, i - precedingTabs - exportedIndex));
-                writer.writeEmptyElement(textNS, QString::fromLatin1("tab"));
-                if (precedingTabs > 1)
-                    writer.writeAttribute(textNS, QString::fromLatin1("tab-ref"), QString::number(precedingTabs));
-                precedingTabs = 0;
-                exportedIndex = i;
+
+            if (i < fragmentText.count()) {
+                if (character.unicode() == 0x2028) { // soft-return
+                    //if (exportedIndex < i)
+                        writer.writeCharacters(fragmentText.mid(exportedIndex, i - exportedIndex));
+                    writer.writeEmptyElement(textNS, QString::fromLatin1("line-break"));
+                    exportedIndex = i+1;
+                    continue;
+                } else if (character.unicode() == '\t') { // Tab
+                    //if (exportedIndex < i)
+                        writer.writeCharacters(fragmentText.mid(exportedIndex, i - exportedIndex));
+                    writer.writeEmptyElement(textNS, QString::fromLatin1("tab"));
+                    exportedIndex = i+1;
+                    precedingSpaces = 0;
+                } else if (isSpace) {
+                    ++precedingSpaces;
+                    escapeNextSpace = true;
+                } else if (!isSpace) {
+                    precedingSpaces = 0;
+                }
             }
-            if (!isSpace && !isTab)
-                precedingSpaces = 0;
         }
 
         writer.writeCharacters(fragmentText.mid(exportedIndex));
diff --git a/src/gui/util/qsystemtrayicon_win.cpp b/src/gui/util/qsystemtrayicon_win.cpp
index c46c929..f79f135 100644
--- a/src/gui/util/qsystemtrayicon_win.cpp
+++ b/src/gui/util/qsystemtrayicon_win.cpp
@@ -518,7 +518,7 @@ void QSystemTrayIconPrivate::install_sys()
 QRect QSystemTrayIconSys::findTrayGeometry()
 {
     //Use lower right corner as fallback
-    QPoint brCorner = qApp->desktop()->screenGeometry().bottomRight();
+    QPoint brCorner = QApplication::desktop()->screenGeometry().bottomRight();
     QRect ret(brCorner.x() - 10, brCorner.y() - 10, 10, 10);
 #if defined(Q_OS_WINCE)
     HWND trayHandle = FindWindowW(L"Shell_TrayWnd", NULL);
diff --git a/src/gui/widgets/qabstractbutton.cpp b/src/gui/widgets/qabstractbutton.cpp
index 1900016..6337b5c 100644
--- a/src/gui/widgets/qabstractbutton.cpp
+++ b/src/gui/widgets/qabstractbutton.cpp
@@ -319,20 +319,16 @@ QList<QAbstractButton *>QAbstractButtonPrivate::queryButtonList() const
         return group->d_func()->buttonList;
 #endif
 
-    Q_Q(const QAbstractButton);
-    QList<QAbstractButton*>candidates;
-    if (q->parentWidget()) {
-        candidates =  qFindChildren<QAbstractButton *>(q->parentWidget());
-        if (autoExclusive) {
-            for (int i = candidates.count() - 1; i >= 0; --i) {
-                QAbstractButton *candidate = candidates.at(i);
-                if (!candidate->autoExclusive()
+    QList<QAbstractButton*>candidates = qFindChildren<QAbstractButton *>(parent);
+    if (autoExclusive) {
+        for (int i = candidates.count() - 1; i >= 0; --i) {
+            QAbstractButton *candidate = candidates.at(i);
+            if (!candidate->autoExclusive()
 #ifndef QT_NO_BUTTONGROUP
-                    || candidate->group()
+                || candidate->group()
 #endif
-                    )
-                    candidates.removeAt(i);
-            }
+                )
+                candidates.removeAt(i);
         }
     }
     return candidates;
@@ -383,7 +379,7 @@ void QAbstractButtonPrivate::moveFocus(int key)
 #else
     bool exclusive = autoExclusive;
 #endif
-    QWidget *f = qApp->focusWidget();
+    QWidget *f = QApplication::focusWidget();
     QAbstractButton *fb = qobject_cast<QAbstractButton *>(f);
     if (!fb || !buttonList.contains(fb))
         return;
diff --git a/src/gui/widgets/qdockwidget.cpp b/src/gui/widgets/qdockwidget.cpp
index 6a0c879..30f9a87 100644
--- a/src/gui/widgets/qdockwidget.cpp
+++ b/src/gui/widgets/qdockwidget.cpp
@@ -69,6 +69,9 @@ extern QString qt_setWindowTitle_helperHelper(const QString&, const QWidget*); /
 
 extern QHash<QByteArray, QFont> *qt_app_fonts_hash(); // qapplication.cpp
 
+static inline bool hasFeature(const QDockWidgetPrivate *priv, QDockWidget::DockWidgetFeature feature)
+{ return (priv->features & feature) == feature; }
+
 static inline bool hasFeature(const QDockWidget *dockwidget, QDockWidget::DockWidgetFeature feature)
 { return (dockwidget->features() & feature) == feature; }
 
@@ -647,25 +650,25 @@ void QDockWidgetPrivate::_q_toggleView(bool b)
 void QDockWidgetPrivate::updateButtons()
 {
     Q_Q(QDockWidget);
-    QDockWidgetLayout *layout = qobject_cast<QDockWidgetLayout*>(q->layout());
+    QDockWidgetLayout *dwLayout = qobject_cast<QDockWidgetLayout*>(layout);
 
     QStyleOptionDockWidget opt;
     q->initStyleOption(&opt);
 
-    bool customTitleBar = layout->widgetForRole(QDockWidgetLayout::TitleBar) != 0;
-    bool nativeDeco = layout->nativeWindowDeco();
+    bool customTitleBar = dwLayout->widgetForRole(QDockWidgetLayout::TitleBar) != 0;
+    bool nativeDeco = dwLayout->nativeWindowDeco();
     bool hideButtons = nativeDeco || customTitleBar;
 
-    bool canClose = hasFeature(q, QDockWidget::DockWidgetClosable);
-    bool canFloat = hasFeature(q, QDockWidget::DockWidgetFloatable);
+    bool canClose = hasFeature(this, QDockWidget::DockWidgetClosable);
+    bool canFloat = hasFeature(this, QDockWidget::DockWidgetFloatable);
 
     QAbstractButton *button
-        = qobject_cast<QAbstractButton*>(layout->widgetForRole(QDockWidgetLayout::FloatButton));
+        = qobject_cast<QAbstractButton*>(dwLayout->widgetForRole(QDockWidgetLayout::FloatButton));
     button->setIcon(q->style()->standardIcon(QStyle::SP_TitleBarNormalButton, &opt, q));
     button->setVisible(canFloat && !hideButtons);
 
     button
-        = qobject_cast <QAbstractButton*>(layout->widgetForRole(QDockWidgetLayout::CloseButton));
+        = qobject_cast <QAbstractButton*>(dwLayout->widgetForRole(QDockWidgetLayout::CloseButton));
     button->setIcon(q->style()->standardIcon(QStyle::SP_TitleBarCloseButton, &opt, q));
     button->setVisible(canClose && !hideButtons);
 
@@ -688,7 +691,7 @@ void QDockWidgetPrivate::initDrag(const QPoint &pos, bool nca)
     if (state != 0)
         return;
 
-    QMainWindow *win = qobject_cast<QMainWindow*>(q->parentWidget());
+    QMainWindow *win = qobject_cast<QMainWindow*>(parent);
     Q_ASSERT(win != 0);
     QMainWindowLayout *layout = qobject_cast<QMainWindowLayout*>(win->layout());
     Q_ASSERT(layout != 0);
@@ -741,15 +744,15 @@ void QDockWidgetPrivate::endDrag(bool abort)
     q->releaseMouse();
 
     if (state->dragging) {
-        QMainWindowLayout *layout =
+        QMainWindowLayout *mwLayout =
             qobject_cast<QMainWindowLayout *>(q->parentWidget()->layout());
-        Q_ASSERT(layout != 0);
+        Q_ASSERT(mwLayout != 0);
 
-        if (abort || !layout->plug(state->widgetItem)) {
-            if (hasFeature(q, QDockWidget::DockWidgetFloatable)) {
+        if (abort || !mwLayout->plug(state->widgetItem)) {
+            if (hasFeature(this, QDockWidget::DockWidgetFloatable)) {
                 if (state->ownWidgetItem)
                     delete state->widgetItem;
-                layout->restore();
+                mwLayout->restore();
 #ifdef Q_WS_X11
                 // get rid of the X11BypassWindowManager window flag and activate the resizer
                 Qt::WindowFlags flags = q->windowFlags();
@@ -759,14 +762,14 @@ void QDockWidgetPrivate::endDrag(bool abort)
                 q->show();
 #else
                 QDockWidgetLayout *myLayout
-                    = qobject_cast<QDockWidgetLayout*>(q->layout());
+                    = qobject_cast<QDockWidgetLayout*>(layout);
                 resizer->setActive(QWidgetResizeHandler::Resize,
                                     myLayout->widgetForRole(QDockWidgetLayout::TitleBar) != 0);
 #endif
                 undockedGeometry = q->geometry();
                 q->activateWindow();
             } else {
-                layout->revert(state->widgetItem);
+                mwLayout->revert(state->widgetItem);
             }
         }
     }
@@ -778,7 +781,7 @@ bool QDockWidgetPrivate::isAnimating() const
 {
     Q_Q(const QDockWidget);
 
-    QMainWindow *mainWin = qobject_cast<QMainWindow*>(q->parentWidget());
+    QMainWindow *mainWin = qobject_cast<QMainWindow*>(parent);
     if (mainWin == 0)
         return false;
 
@@ -795,18 +798,18 @@ bool QDockWidgetPrivate::mousePressEvent(QMouseEvent *event)
 #if !defined(QT_NO_MAINWINDOW)
     Q_Q(QDockWidget);
 
-    QDockWidgetLayout *layout
-        = qobject_cast<QDockWidgetLayout*>(q->layout());
+    QDockWidgetLayout *dwLayout
+        = qobject_cast<QDockWidgetLayout*>(layout);
 
-    if (!layout->nativeWindowDeco()) {
-        QRect titleArea = layout->titleArea();
+    if (!dwLayout->nativeWindowDeco()) {
+        QRect titleArea = dwLayout->titleArea();
 
         if (event->button() != Qt::LeftButton ||
             !titleArea.contains(event->pos()) ||
             // check if the tool window is movable... do nothing if it
             // is not (but allow moving if the window is floating)
-            (!hasFeature(q, QDockWidget::DockWidgetMovable) && !q->isFloating()) ||
-            qobject_cast<QMainWindow*>(q->parentWidget()) == 0 ||
+            (!hasFeature(this, QDockWidget::DockWidgetMovable) && !q->isFloating()) ||
+            qobject_cast<QMainWindow*>(parent) == 0 ||
             isAnimating() || state != 0) {
             return false;
         }
@@ -814,7 +817,7 @@ bool QDockWidgetPrivate::mousePressEvent(QMouseEvent *event)
         initDrag(event->pos(), false);
 
         if (state)
-            state->ctrlDrag = hasFeature(q, QDockWidget::DockWidgetFloatable) && event->modifiers() & Qt::ControlModifier;
+            state->ctrlDrag = hasFeature(this, QDockWidget::DockWidgetFloatable) && event->modifiers() & Qt::ControlModifier;
 
         return true;
     }
@@ -825,15 +828,13 @@ bool QDockWidgetPrivate::mousePressEvent(QMouseEvent *event)
 
 bool QDockWidgetPrivate::mouseDoubleClickEvent(QMouseEvent *event)
 {
-    Q_Q(QDockWidget);
+    QDockWidgetLayout *dwLayout = qobject_cast<QDockWidgetLayout*>(layout);
 
-    QDockWidgetLayout *layout = qobject_cast<QDockWidgetLayout*>(q->layout());
-
-    if (!layout->nativeWindowDeco()) {
-        QRect titleArea = layout->titleArea();
+    if (!dwLayout->nativeWindowDeco()) {
+        QRect titleArea = dwLayout->titleArea();
 
         if (event->button() == Qt::LeftButton && titleArea.contains(event->pos()) &&
-            hasFeature(q, QDockWidget::DockWidgetFloatable)) {
+            hasFeature(this, QDockWidget::DockWidgetFloatable)) {
             _q_toggleTopLevel();
             return true;
         }
@@ -851,7 +852,7 @@ bool QDockWidgetPrivate::mouseMoveEvent(QMouseEvent *event)
         return ret;
 
     QDockWidgetLayout *dwlayout
-        = qobject_cast<QDockWidgetLayout*>(q->layout());
+        = qobject_cast<QDockWidgetLayout*>(layout);
     QMainWindowLayout *mwlayout
         = qobject_cast<QMainWindowLayout*>(q->parentWidget()->layout());
     if (!dwlayout->nativeWindowDeco()) {
@@ -924,7 +925,7 @@ void QDockWidgetPrivate::nonClientAreaMouseEvent(QMouseEvent *event)
                 break;
             if (state != 0)
                 break;
-            if (qobject_cast<QMainWindow*>(q->parentWidget()) == 0)
+            if (qobject_cast<QMainWindow*>(parent) == 0)
                 break;
             if (isAnimating())
                 break;
@@ -997,9 +998,9 @@ void QDockWidgetPrivate::unplug(const QRect &rect)
     Q_Q(QDockWidget);
     QRect r = rect;
     r.moveTopLeft(q->mapToGlobal(QPoint(0, 0)));
-    QDockWidgetLayout *layout = qobject_cast<QDockWidgetLayout*>(q->layout());
-    if (layout->nativeWindowDeco(true))
-        r.adjust(0, layout->titleHeight(), 0, 0);
+    QDockWidgetLayout *dwLayout = qobject_cast<QDockWidgetLayout*>(layout);
+    if (dwLayout->nativeWindowDeco(true))
+        r.adjust(0, dwLayout->titleHeight(), 0, 0);
     setWindowState(true, true, r);
 }
 
@@ -1020,12 +1021,12 @@ void QDockWidgetPrivate::setWindowState(bool floating, bool unplug, const QRect
 
     Qt::WindowFlags flags = floating ? Qt::Tool : Qt::Widget;
 
-    QDockWidgetLayout *layout = qobject_cast<QDockWidgetLayout*>(q->layout());
-    const bool nativeDeco = layout->nativeWindowDeco(floating);
+    QDockWidgetLayout *dwLayout = qobject_cast<QDockWidgetLayout*>(layout);
+    const bool nativeDeco = dwLayout->nativeWindowDeco(floating);
 
     if (nativeDeco) {
         flags |= Qt::CustomizeWindowHint | Qt::WindowTitleHint;
-        if (hasFeature(q, QDockWidget::DockWidgetClosable))
+        if (hasFeature(this, QDockWidget::DockWidgetClosable))
             flags |= Qt::WindowCloseButtonHint;
     } else {
         flags |= Qt::FramelessWindowHint;
diff --git a/src/gui/widgets/qeffects.cpp b/src/gui/widgets/qeffects.cpp
index 140953d..19cdf89 100644
--- a/src/gui/widgets/qeffects.cpp
+++ b/src/gui/widgets/qeffects.cpp
@@ -588,8 +588,8 @@ void qScrollEffect(QWidget* w, QEffects::DirFlags orient, int time)
     if (!w)
         return;
 
-    qApp->sendPostedEvents(w, QEvent::Move);
-    qApp->sendPostedEvents(w, QEvent::Resize);
+    QApplication::sendPostedEvents(w, QEvent::Move);
+    QApplication::sendPostedEvents(w, QEvent::Resize);
     Qt::WindowFlags flags = Qt::ToolTip;
 
     // those can be popups - they would steal the focus, but are disabled
@@ -610,8 +610,8 @@ void qFadeEffect(QWidget* w, int time)
     if (!w)
         return;
 
-    qApp->sendPostedEvents(w, QEvent::Move);
-    qApp->sendPostedEvents(w, QEvent::Resize);
+    QApplication::sendPostedEvents(w, QEvent::Move);
+    QApplication::sendPostedEvents(w, QEvent::Resize);
 
     Qt::WindowFlags flags = Qt::ToolTip;
 
diff --git a/src/gui/widgets/qmdiarea.cpp b/src/gui/widgets/qmdiarea.cpp
index 6acd977..efaa2d3 100644
--- a/src/gui/widgets/qmdiarea.cpp
+++ b/src/gui/widgets/qmdiarea.cpp
@@ -800,12 +800,12 @@ void QMdiAreaPrivate::appendChild(QMdiSubWindow *child)
     Q_Q(QMdiArea);
     Q_ASSERT(child && childWindows.indexOf(child) == -1);
 
-    if (child->parent() != q->viewport())
-        child->setParent(q->viewport(), child->windowFlags());
+    if (child->parent() != viewport)
+        child->setParent(viewport, child->windowFlags());
     childWindows.append(QPointer<QMdiSubWindow>(child));
 
     if (!child->testAttribute(Qt::WA_Resized) && q->isVisible()) {
-        QSize newSize(child->sizeHint().boundedTo(q->viewport()->size()));
+        QSize newSize(child->sizeHint().boundedTo(viewport->size()));
         child->resize(newSize.expandedTo(qSmartMinSize(child)));
     }
 
@@ -931,7 +931,7 @@ void QMdiAreaPrivate::rearrange(Rearranger *rearranger)
             widgets.move(indexToActive, 0);
     }
 
-    QRect domain = q->viewport()->rect();
+    QRect domain = viewport->rect();
     if (rearranger->type() == Rearranger::RegularTiler && !widgets.isEmpty())
         domain = resizeToMinimumTileSize(minSubWindowSize, widgets.count());
 
@@ -1212,7 +1212,7 @@ void QMdiAreaPrivate::internalRaise(QMdiSubWindow *mdiChild) const
 
     QMdiSubWindow *stackUnderChild = 0;
     if (!windowStaysOnTop(mdiChild)) {
-        foreach (QObject *object, q_func()->viewport()->children()) {
+        foreach (QObject *object, viewport->children()) {
             QMdiSubWindow *child = qobject_cast<QMdiSubWindow *>(object);
             if (!child || !childWindows.contains(child))
                 continue;
@@ -1236,7 +1236,7 @@ QRect QMdiAreaPrivate::resizeToMinimumTileSize(const QSize &minSubWindowSize, in
 {
     Q_Q(QMdiArea);
     if (!minSubWindowSize.isValid() || subWindowCount <= 0)
-        return q->viewport()->rect();
+        return viewport->rect();
 
     // Calculate minimum size.
     const int columns = qMax(qCeil(qSqrt(qreal(subWindowCount))), 1);
@@ -1255,10 +1255,10 @@ QRect QMdiAreaPrivate::resizeToMinimumTileSize(const QSize &minSubWindowSize, in
         // We don't want sub-subwindows to be placed at the edge, thus add 2 pixels.
         int minAreaWidth = minWidth + left + right + 2;
         int minAreaHeight = minHeight + top + bottom + 2;
-        if (q->horizontalScrollBar()->isVisible())
-            minAreaHeight += q->horizontalScrollBar()->height();
-        if (q->verticalScrollBar()->isVisible())
-            minAreaWidth += q->verticalScrollBar()->width();
+        if (hbar->isVisible())
+            minAreaHeight += hbar->height();
+        if (vbar->isVisible())
+            minAreaWidth += vbar->width();
         if (q->style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents, 0, q)) {
             const int frame = q->style()->pixelMetric(QStyle::PM_DefaultFrameWidth, 0, q);
             minAreaWidth += 2 * frame;
@@ -1268,23 +1268,23 @@ QRect QMdiAreaPrivate::resizeToMinimumTileSize(const QSize &minSubWindowSize, in
         topLevel->resize(topLevel->size() + diff);
     }
 
-    QRect domain = q->viewport()->rect();
+    QRect domain = viewport->rect();
 
     // Adjust domain width and provide horizontal scroll bar.
     if (domain.width() < minWidth) {
         domain.setWidth(minWidth);
-        if (q->horizontalScrollBarPolicy() == Qt::ScrollBarAlwaysOff)
+        if (hbarpolicy == Qt::ScrollBarAlwaysOff)
             q->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
-        else if (q->horizontalScrollBar()->value() != 0)
-            q->horizontalScrollBar()->setValue(0);
+        else
+            hbar->setValue(0);
     }
     // Adjust domain height and provide vertical scroll bar.
     if (domain.height() < minHeight) {
         domain.setHeight(minHeight);
-        if (q->verticalScrollBarPolicy() == Qt::ScrollBarAlwaysOff)
+        if (vbarpolicy  == Qt::ScrollBarAlwaysOff)
             q->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
-        else if (q->verticalScrollBar()->value() != 0)
-            q->verticalScrollBar()->setValue(0);
+        else
+            vbar->setValue(0);
     }
     return domain;
 }
diff --git a/src/gui/widgets/qmdisubwindow.cpp b/src/gui/widgets/qmdisubwindow.cpp
index 56df8ea..e5cc6b6 100644
--- a/src/gui/widgets/qmdisubwindow.cpp
+++ b/src/gui/widgets/qmdisubwindow.cpp
@@ -1006,7 +1006,7 @@ void QMdiSubWindowPrivate::removeBaseWidget()
 
     Q_Q(QMdiSubWindow);
     baseWidget->removeEventFilter(q);
-    if (QLayout *layout = q->layout())
+    if (layout)
         layout->removeWidget(baseWidget);
     if (baseWidget->windowTitle() == q->windowTitle()) {
         ignoreWindowTitleChange = true;
@@ -1102,7 +1102,7 @@ void QMdiSubWindowPrivate::updateCursor()
 void QMdiSubWindowPrivate::updateDirtyRegions()
 {
     // No update necessary
-    if (!q_func()->parent())
+    if (!parent)
         return;
 
     foreach (Operation operation, operationMap.keys())
@@ -1115,7 +1115,7 @@ void QMdiSubWindowPrivate::updateDirtyRegions()
 void QMdiSubWindowPrivate::updateGeometryConstraints()
 {
     Q_Q(QMdiSubWindow);
-    if (!q->parent())
+    if (!parent)
         return;
 
     internalMinimumSize = (!q->isMinimized() && !q->minimumSize().isNull())
@@ -1145,7 +1145,7 @@ void QMdiSubWindowPrivate::updateMask()
     if (!q->mask().isEmpty())
         q->clearMask();
 
-    if (!q->parent())
+    if (!parent)
         return;
 
     if ((q->isMaximized() && !drawTitleBarWhenMaximized())
@@ -1168,7 +1168,7 @@ void QMdiSubWindowPrivate::setNewGeometry(const QPoint &pos)
 {
     Q_Q(QMdiSubWindow);
     Q_ASSERT(currentOperation != None);
-    Q_ASSERT(q->parent());
+    Q_ASSERT(parent);
 
     uint cflags = operationMap.find(currentOperation).value().changeFlags;
     int posX = pos.x();
@@ -1235,7 +1235,7 @@ void QMdiSubWindowPrivate::setNewGeometry(const QPoint &pos)
 void QMdiSubWindowPrivate::setMinimizeMode()
 {
     Q_Q(QMdiSubWindow);
-    Q_ASSERT(q->parent());
+    Q_ASSERT(parent);
 
     ensureWindowState(Qt::WindowMinimized);
     isShadeRequestFromMinimizeMode = true;
@@ -1263,7 +1263,7 @@ void QMdiSubWindowPrivate::setMinimizeMode()
 void QMdiSubWindowPrivate::setNormalMode()
 {
     Q_Q(QMdiSubWindow);
-    Q_ASSERT(q->parent());
+    Q_ASSERT(parent);
 
     isShadeMode = false;
     isMaximizeMode = false;
@@ -1334,7 +1334,7 @@ void QMdiSubWindowPrivate::setNormalMode()
 void QMdiSubWindowPrivate::setMaximizeMode()
 {
     Q_Q(QMdiSubWindow);
-    Q_ASSERT(q->parent());
+    Q_ASSERT(parent);
 
     ensureWindowState(Qt::WindowMaximized);
     isShadeMode = false;
@@ -1423,7 +1423,7 @@ void QMdiSubWindowPrivate::setMaximizeMode()
 void QMdiSubWindowPrivate::setActive(bool activate, bool changeFocus)
 {
     Q_Q(QMdiSubWindow);
-    if (!q->parent() || !activationEnabled)
+    if (!parent || !activationEnabled)
         return;
 
     if (activate && !isActive && q->isEnabled()) {
@@ -1711,7 +1711,7 @@ void QMdiSubWindowPrivate::ensureWindowState(Qt::WindowState state)
 int QMdiSubWindowPrivate::titleBarHeight(const QStyleOptionTitleBar &options) const
 {
     Q_Q(const QMdiSubWindow);
-    if (!q->parent() || q->windowFlags() & Qt::FramelessWindowHint
+    if (!parent || q->windowFlags() & Qt::FramelessWindowHint
         || (q->isMaximized() && !drawTitleBarWhenMaximized())) {
         return 0;
     }
@@ -1734,7 +1734,7 @@ void QMdiSubWindowPrivate::sizeParameters(int *margin, int *minWidth) const
 {
     Q_Q(const QMdiSubWindow);
     Qt::WindowFlags flags = q->windowFlags();
-    if (!q->parent() || flags & Qt::FramelessWindowHint) {
+    if (!parent || flags & Qt::FramelessWindowHint) {
         *margin = 0;
         *minWidth = 0;
         return;
@@ -1893,7 +1893,7 @@ void QMdiSubWindowPrivate::enterRubberBandMode()
     if (q->isMaximized())
         return;
     Q_ASSERT(oldGeometry.isValid());
-    Q_ASSERT(q->parent());
+    Q_ASSERT(parent);
     if (!rubberBand) {
         rubberBand = new QRubberBand(QRubberBand::Rectangle, q->parentWidget());
         // For accessibility to identify this special widget.
@@ -2079,7 +2079,7 @@ void QMdiSubWindowPrivate::restoreFocus()
 void QMdiSubWindowPrivate::setWindowFlags(Qt::WindowFlags windowFlags)
 {
     Q_Q(QMdiSubWindow);
-    if (!q->parent()) {
+    if (!parent) {
         q->setWindowFlags(windowFlags);
         return;
     }
@@ -2164,7 +2164,7 @@ void QMdiSubWindowPrivate::addToSystemMenu(WindowStateAction action, const QStri
 QSize QMdiSubWindowPrivate::iconSize() const
 {
     Q_Q(const QMdiSubWindow);
-    if (!q->parent() || q->windowFlags() & Qt::FramelessWindowHint)
+    if (!parent || q->windowFlags() & Qt::FramelessWindowHint)
         return QSize(-1, -1);
     return QSize(q->style()->pixelMetric(QStyle::PM_MdiSubWindowMinimizedWidth, 0, q), titleBarHeight());
 }
@@ -2180,17 +2180,17 @@ void QMdiSubWindowPrivate::setSizeGrip(QSizeGrip *newSizeGrip)
     if (!newSizeGrip || sizeGrip || q->windowFlags() & Qt::FramelessWindowHint)
         return;
 
-    if (q->layout() && q->layout()->indexOf(newSizeGrip) != -1)
+    if (layout && layout->indexOf(newSizeGrip) != -1)
         return;
     newSizeGrip->setFixedSize(newSizeGrip->sizeHint());
-    bool putSizeGripInLayout = q->layout() ? true : false;
+    bool putSizeGripInLayout = layout ? true : false;
 #if defined(Q_WS_MAC) && !defined(QT_NO_STYLE_MAC)
     if (qobject_cast<QMacStyle *>(q->style()))
         putSizeGripInLayout = false;
 #endif
     if (putSizeGripInLayout) {
-        q->layout()->addWidget(newSizeGrip);
-        q->layout()->setAlignment(newSizeGrip, Qt::AlignBottom | Qt::AlignRight);
+        layout->addWidget(newSizeGrip);
+        layout->setAlignment(newSizeGrip, Qt::AlignBottom | Qt::AlignRight);
     } else {
         newSizeGrip->setParent(q);
         newSizeGrip->move(q->isLeftToRight() ? q->width() - newSizeGrip->width() : 0,
diff --git a/src/gui/widgets/qmdisubwindow_p.h b/src/gui/widgets/qmdisubwindow_p.h
index 2e672d6..d706546 100644
--- a/src/gui/widgets/qmdisubwindow_p.h
+++ b/src/gui/widgets/qmdisubwindow_p.h
@@ -287,7 +287,7 @@ public:
     inline int titleBarHeight() const
     {
         Q_Q(const QMdiSubWindow);
-        if (!q->parent() || q->windowFlags() & Qt::FramelessWindowHint
+        if (!parent || q->windowFlags() & Qt::FramelessWindowHint
             || (q->isMaximized() && !drawTitleBarWhenMaximized())) {
             return 0;
         }
@@ -308,7 +308,7 @@ public:
     inline void setNewGeometry(QRect *geometry)
     {
         Q_Q(QMdiSubWindow);
-        Q_ASSERT(q->parent());
+        Q_ASSERT(parent);
         geometry->setSize(geometry->size().expandedTo(internalMinimumSize));
 #ifndef QT_NO_RUBBERBAND
         if (isInRubberBandMode)
diff --git a/src/gui/widgets/qmenu.cpp b/src/gui/widgets/qmenu.cpp
index 711f1f4..7baea94 100644
--- a/src/gui/widgets/qmenu.cpp
+++ b/src/gui/widgets/qmenu.cpp
@@ -1048,7 +1048,7 @@ void QMenuPrivate::activateAction(QAction *action, QAction::ActionEvent action_e
         if (q->testAttribute(Qt::WA_DontShowOnScreen)) {
             hideUpToMenuBar();
         } else {
-            for(QWidget *widget = qApp->activePopupWidget(); widget; ) {
+            for(QWidget *widget = QApplication::activePopupWidget(); widget; ) {
                 if (QMenu *qmenu = qobject_cast<QMenu*>(widget)) {
                     if(qmenu == q)
                         hideUpToMenuBar();
@@ -1843,7 +1843,7 @@ void QMenu::popup(const QPoint &p, QAction *atAction)
 
     if (adjustToDesktop) {
         //handle popup falling "off screen"
-        if (qApp->layoutDirection() == Qt::RightToLeft) {
+        if (QApplication::layoutDirection() == Qt::RightToLeft) {
             if(snapToMouse) //position flowing left from the mouse
                 pos.setX(mouse.x()-size.width());
 
@@ -1881,9 +1881,9 @@ void QMenu::popup(const QPoint &p, QAction *atAction)
     }
     setGeometry(QRect(pos, size));
 #ifndef QT_NO_EFFECTS
-    int hGuess = qApp->layoutDirection() == Qt::RightToLeft ? QEffects::LeftScroll : QEffects::RightScroll;
+    int hGuess = QApplication::layoutDirection() == Qt::RightToLeft ? QEffects::LeftScroll : QEffects::RightScroll;
     int vGuess = QEffects::DownScroll;
-    if (qApp->layoutDirection() == Qt::RightToLeft) {
+    if (QApplication::layoutDirection() == Qt::RightToLeft) {
         if ((snapToMouse && (pos.x() + size.width()/2 > mouse.x())) ||
            (qobject_cast<QMenu*>(d->causedPopup.widget) && pos.x() + size.width()/2 > d->causedPopup.widget->x()))
             hGuess = QEffects::RightScroll;
@@ -2575,7 +2575,7 @@ void QMenu::keyPressEvent(QKeyEvent *e)
         {
             d->hideMenu(this);
 #ifndef QT_NO_MENUBAR
-            if (QMenuBar *mb = qobject_cast<QMenuBar*>(qApp->focusWidget())) {
+            if (QMenuBar *mb = qobject_cast<QMenuBar*>(QApplication::focusWidget())) {
                 mb->d_func()->setKeyboardMode(false);
             }
 #endif
@@ -2719,7 +2719,7 @@ void QMenu::keyPressEvent(QKeyEvent *e)
 
 #ifdef Q_OS_WIN32
         if (key_consumed && (e->key() == Qt::Key_Control || e->key() == Qt::Key_Shift || e->key() == Qt::Key_Meta))
-            qApp->beep();
+            QApplication::beep();
 #endif // Q_OS_WIN32
     }
     if (key_consumed)
diff --git a/src/gui/widgets/qmenubar.cpp b/src/gui/widgets/qmenubar.cpp
index fc7e901..51e38e6 100644
--- a/src/gui/widgets/qmenubar.cpp
+++ b/src/gui/widgets/qmenubar.cpp
@@ -284,7 +284,7 @@ void QMenuBarPrivate::setKeyboardMode(bool b)
     }
     keyboardState = b;
     if(b) {
-        QWidget *fw = qApp->focusWidget();
+        QWidget *fw = QApplication::focusWidget();
         if (fw != q)
             keyboardFocusWidget = fw;
         if(!currentAction && !actionList.isEmpty())
@@ -294,7 +294,7 @@ void QMenuBarPrivate::setKeyboardMode(bool b)
         if(!popupState)
             setCurrentAction(0);
         if(keyboardFocusWidget) {
-            if (qApp->focusWidget() == q)
+            if (QApplication::focusWidget() == q)
                 keyboardFocusWidget->setFocus(Qt::MenuBarFocusReason);
             keyboardFocusWidget = 0;
         }
diff --git a/src/gui/widgets/qpushbutton.cpp b/src/gui/widgets/qpushbutton.cpp
index ca58f87..b526f02 100644
--- a/src/gui/widgets/qpushbutton.cpp
+++ b/src/gui/widgets/qpushbutton.cpp
@@ -576,7 +576,7 @@ void QPushButtonPrivate::_q_popupPressed()
     menu->setNoReplayFor(q);
     bool horizontal = true;
 #if !defined(QT_NO_TOOLBAR)
-    QToolBar *tb = qobject_cast<QToolBar*>(q->parentWidget());
+    QToolBar *tb = qobject_cast<QToolBar*>(parent);
     if (tb && tb->orientation() == Qt::Vertical)
         horizontal = false;
 #endif
@@ -589,7 +589,7 @@ void QPushButtonPrivate::_q_popupPressed()
     int x = globalPos.x();
     int y = globalPos.y();
     if (horizontal) {
-        if (globalPos.y() + rect.height() + menuSize.height() <= qApp->desktop()->height()) {
+        if (globalPos.y() + rect.height() + menuSize.height() <= QApplication::desktop()->height()) {
             y += rect.height();
         } else {
             y -= menuSize.height();
@@ -597,7 +597,7 @@ void QPushButtonPrivate::_q_popupPressed()
         if (q->layoutDirection() == Qt::RightToLeft)
             x += rect.width() - menuSize.width();
     } else {
-        if (globalPos.x() + rect.width() + menu->sizeHint().width() <= qApp->desktop()->width())
+        if (globalPos.x() + rect.width() + menu->sizeHint().width() <= QApplication::desktop()->width())
             x += rect.width();
         else
             x -= menuSize.width();
diff --git a/src/gui/widgets/qspinbox.cpp b/src/gui/widgets/qspinbox.cpp
index f12946c..a9b9a84 100644
--- a/src/gui/widgets/qspinbox.cpp
+++ b/src/gui/widgets/qspinbox.cpp
@@ -983,7 +983,7 @@ QVariant QSpinBoxPrivate::valueFromText(const QString &text) const
 
 bool QSpinBoxPrivate::isIntermediateValue(const QString &str) const
 {
-    const int num = q_func()->locale().toInt(str, 0, 10);
+    const int num = locale.toInt(str, 0, 10);
     const int min = minimum.toInt();
     const int max = maximum.toInt();
 
@@ -1053,13 +1053,13 @@ QVariant QSpinBoxPrivate::validateAndInterpret(QString &input, int &pos,
     } else {
         bool ok = false;
         bool removedThousand = false;
-        num = q_func()->locale().toInt(copy, &ok, 10);
+        num = locale.toInt(copy, &ok, 10);
         if (!ok && copy.contains(thousand) && (max >= 1000 || min <= -1000)) {
             const int s = copy.size();
             copy.remove(thousand);
             pos = qMax(0, pos - (s - copy.size()));
             removedThousand = true;
-            num = q_func()->locale().toInt(copy, &ok, 10);
+            num = locale.toInt(copy, &ok, 10);
         }
         QSBDEBUG() << __FILE__ << __LINE__<< "num is set to" << num;
         if (!ok) {
@@ -1346,9 +1346,8 @@ QVariant QDoubleSpinBoxPrivate::validateAndInterpret(QString &input, int &pos,
 
     {
         bool ok = false;
-        QLocale loc(q_func()->locale());
-        num = loc.toDouble(copy, &ok);
-        QSBDEBUG() << __FILE__ << __LINE__ << loc << copy << num << ok;
+        num = locale.toDouble(copy, &ok);
+        QSBDEBUG() << __FILE__ << __LINE__ << locale << copy << num << ok;
         bool notAcceptable = false;
 
         if (!ok) {
@@ -1373,7 +1372,7 @@ QVariant QDoubleSpinBoxPrivate::validateAndInterpret(QString &input, int &pos,
                 pos = qMax(0, pos - (s - copy.size()));
 
 
-                num = loc.toDouble(copy, &ok);
+                num = locale.toDouble(copy, &ok);
                 QSBDEBUG() << thousand << num << copy << ok;
 
                 if (!ok) {
diff --git a/src/gui/widgets/qsplitter.cpp b/src/gui/widgets/qsplitter.cpp
index 400d78a..24a8b6c 100644
--- a/src/gui/widgets/qsplitter.cpp
+++ b/src/gui/widgets/qsplitter.cpp
@@ -397,7 +397,7 @@ void QSplitterPrivate::recalc(bool update)
     }
 
     if (empty) {
-        if (qobject_cast<QSplitter *>(q->parentWidget())) {
+        if (qobject_cast<QSplitter *>(parent)) {
             // nested splitters; be nice
             maxl = maxt = 0;
         } else {
diff --git a/src/gui/widgets/qtabwidget.cpp b/src/gui/widgets/qtabwidget.cpp
index 43b2f54..c97154c 100644
--- a/src/gui/widgets/qtabwidget.cpp
+++ b/src/gui/widgets/qtabwidget.cpp
@@ -1057,7 +1057,7 @@ void QTabWidget::keyPressEvent(QKeyEvent *e)
                 break;
             }
         }
-        if (!qApp->focusWidget())
+        if (!QApplication::focusWidget())
             d->tabs->setFocus();
     } else {
         e->ignore();
diff --git a/src/gui/widgets/qtextbrowser.cpp b/src/gui/widgets/qtextbrowser.cpp
index a1f4d34..d849184 100644
--- a/src/gui/widgets/qtextbrowser.cpp
+++ b/src/gui/widgets/qtextbrowser.cpp
@@ -263,7 +263,7 @@ void QTextBrowserPrivate::setSource(const QUrl &url)
     Q_Q(QTextBrowser);
 #ifndef QT_NO_CURSOR
     if (q->isVisible())
-        qApp->setOverrideCursor(Qt::WaitCursor);
+        QApplication::setOverrideCursor(Qt::WaitCursor);
 #endif
     textOrSourceChanged = true;
 
@@ -295,9 +295,9 @@ void QTextBrowserPrivate::setSource(const QUrl &url)
 
         if (q->isVisible()) {
             QString firstTag = txt.left(txt.indexOf(QLatin1Char('>')) + 1);
-            if (firstTag.left(3) == QLatin1String("<qt") && firstTag.contains(QLatin1String("type")) && firstTag.contains(QLatin1String("detail"))) {
+            if (firstTag.startsWith(QLatin1String("<qt")) && firstTag.contains(QLatin1String("type")) && firstTag.contains(QLatin1String("detail"))) {
 #ifndef QT_NO_CURSOR
-                qApp->restoreOverrideCursor();
+                QApplication::restoreOverrideCursor();
 #endif
 #ifndef QT_NO_WHATSTHIS
                 QWhatsThis::showText(QCursor::pos(), txt, q);
@@ -342,7 +342,7 @@ void QTextBrowserPrivate::setSource(const QUrl &url)
 
 #ifndef QT_NO_CURSOR
     if (q->isVisible())
-        qApp->restoreOverrideCursor();
+        QApplication::restoreOverrideCursor();
 #endif
     emit q->sourceChanged(url);
 }
diff --git a/src/gui/widgets/qtoolbar.cpp b/src/gui/widgets/qtoolbar.cpp
index d765794..7787a66 100644
--- a/src/gui/widgets/qtoolbar.cpp
+++ b/src/gui/widgets/qtoolbar.cpp
@@ -198,7 +198,7 @@ void QToolBarPrivate::initDrag(const QPoint &pos)
     if (state != 0)
         return;
 
-    QMainWindow *win = qobject_cast<QMainWindow*>(q->parentWidget());
+    QMainWindow *win = qobject_cast<QMainWindow*>(parent);
     Q_ASSERT(win != 0);
     QMainWindowLayout *layout = qobject_cast<QMainWindowLayout*>(win->layout());
     Q_ASSERT(layout != 0);
@@ -224,7 +224,7 @@ void QToolBarPrivate::startDrag(bool moving)
     if ((moving && state->moving) || state->dragging)
         return;
 
-    QMainWindow *win = qobject_cast<QMainWindow*>(q->parentWidget());
+    QMainWindow *win = qobject_cast<QMainWindow*>(parent);
     Q_ASSERT(win != 0);
     QMainWindowLayout *layout = qobject_cast<QMainWindowLayout*>(win->layout());
     Q_ASSERT(layout != 0);
@@ -283,7 +283,7 @@ bool QToolBarPrivate::mousePressEvent(QMouseEvent *event)
         // drag between toolbar contents to move the window. Make this work by
         // implementing the standard mouse-dragging code and then call
         // window->move() in mouseMoveEvent below.
-        if (QMainWindow *mainWindow = qobject_cast<QMainWindow *>(q->parentWidget())) {
+        if (QMainWindow *mainWindow = qobject_cast<QMainWindow *>(parent)) {
             if (mainWindow->toolBarArea(q) == Qt::TopToolBarArea
                     && mainWindow->unifiedTitleAndToolBarOnMac()
                     && q->childAt(event->pos()) == 0) {
@@ -337,7 +337,7 @@ bool QToolBarPrivate::mouseMoveEvent(QMouseEvent *event)
         return false;
     }
 
-    QMainWindow *win = qobject_cast<QMainWindow*>(q->parentWidget());
+    QMainWindow *win = qobject_cast<QMainWindow*>(parent);
     if (win == 0)
         return true;
 
@@ -1181,7 +1181,7 @@ bool QToolBar::event(QEvent *event)
             if (!d->layout->expanded)
                 break;
 
-            QWidget *w = qApp->activePopupWidget();
+            QWidget *w = QApplication::activePopupWidget();
             if (waitForPopup(this, w)) {
                 d->waitForPopupTimer->start();
                 break;
@@ -1201,7 +1201,7 @@ void QToolBarPrivate::_q_waitForPopup()
 {
     Q_Q(QToolBar);
 
-    QWidget *w = qApp->activePopupWidget();
+    QWidget *w = QApplication::activePopupWidget();
     if (!waitForPopup(q, w)) {
         waitForPopupTimer->stop();
         if (!q->underMouse())
diff --git a/src/gui/widgets/qtoolbararealayout.cpp b/src/gui/widgets/qtoolbararealayout.cpp
index 240d059..b1b743e 100644
--- a/src/gui/widgets/qtoolbararealayout.cpp
+++ b/src/gui/widgets/qtoolbararealayout.cpp
@@ -440,9 +440,10 @@ void QToolBarAreaLayoutInfo::moveToolBar(QToolBar *toolbar, int pos)
 
                     //we check if the previous is near its size hint
                     //in which case we try to stick to it
-                    if (qAbs(pick(o, previous.sizeHint()) - (previous.size + extra)) < QApplication::startDragDistance()) {
-                        //we stick to the default space
-                        extra = 0;
+                    const int diff = pick(o, previous.sizeHint()) - (previous.size + extra);
+                    if (qAbs(diff) < QApplication::startDragDistance()) {
+                        //we stick to the default place and size
+                        extra += diff;
                     }
 
                     //update for the current item
diff --git a/src/gui/widgets/qtoolbutton.cpp b/src/gui/widgets/qtoolbutton.cpp
index 20b84ef..0eb6364 100644
--- a/src/gui/widgets/qtoolbutton.cpp
+++ b/src/gui/widgets/qtoolbutton.cpp
@@ -278,7 +278,7 @@ void QToolButtonPrivate::init()
 #endif
     defaultAction = 0;
 #ifndef QT_NO_TOOLBAR
-    if (qobject_cast<QToolBar*>(q->parentWidget()))
+    if (qobject_cast<QToolBar*>(parent))
         autoRaise = true;
     else
 #endif
@@ -890,12 +890,12 @@ void QToolButtonPrivate::popupTimerDone()
     q->setAutoRepeat(false);
     bool horizontal = true;
 #if !defined(QT_NO_TOOLBAR)
-    QToolBar *tb = qobject_cast<QToolBar*>(q->parentWidget());
+    QToolBar *tb = qobject_cast<QToolBar*>(parent);
     if (tb && tb->orientation() == Qt::Vertical)
         horizontal = false;
 #endif
     QPoint p;
-    QRect screen = qApp->desktop()->availableGeometry(q);
+    QRect screen = QApplication::desktop()->availableGeometry(q);
     QSize sh = ((QToolButton*)(QMenu*)actualMenu)->receivers(SIGNAL(aboutToShow()))? QSize() : actualMenu->sizeHint();
     QRect rect = q->rect();
     if (horizontal) {
diff --git a/src/gui/widgets/qwidgetresizehandler.cpp b/src/gui/widgets/qwidgetresizehandler.cpp
index 9171244..0e5b28a 100644
--- a/src/gui/widgets/qwidgetresizehandler.cpp
+++ b/src/gui/widgets/qwidgetresizehandler.cpp
@@ -258,7 +258,7 @@ void QWidgetResizeHandler::mouseMoveEvent(QMouseEvent *e)
 
 #ifdef Q_WS_X11
     // Workaround for window managers which refuse to move a tool window partially offscreen.
-    QRect desktop = qApp->desktop()->availableGeometry(widget);
+    QRect desktop = QApplication::desktop()->availableGeometry(widget);
     pp.rx() = qMax(pp.x(), desktop.left());
     pp.ry() = qMax(pp.y(), desktop.top());
     p.rx() = qMin(p.x(), desktop.right());