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

Conflicts:
	src/gui/graphicsview/qgraphicsitem_p.h

11 files changed, 406 insertions, 219 deletions

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)