Revert 4.6 commits that shouldn't be in 4.7.

Commits reverted:
	880e4935410769b8337d75f219bef70493c4bb2c
	82a306e7dda06909801f576bbbbebb59dc41c563
	6cb935dd89a391f792f8ad42012b5c7c38712f17
	ebd1c45822aca087be994c898cfb01cd41599429
	4e4c0055d59978850796ff8c1b5015e17459e8d2

8 files changed, 287 insertions, 3 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 65ccf72..e5471b0 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -5248,6 +5248,8 @@ void QGraphicsItemPrivate::addChild(QGraphicsItem *child)
     needSortChildren = 1; // ### maybe 0
     child->d_ptr->siblingIndex = children.size();
     children.append(child);
+    if (isObject)
+        emit static_cast<QGraphicsObject *>(q_ptr)->childrenChanged();
 }
 
 /*!
@@ -5270,6 +5272,8 @@ void QGraphicsItemPrivate::removeChild(QGraphicsItem *child)
     // the child is not guaranteed to be at the index after the list is sorted.
     // (see ensureSortedChildren()).
     child->d_ptr->siblingIndex = -1;
+    if (isObject)
+        emit static_cast<QGraphicsObject *>(q_ptr)->childrenChanged();
 }
 
 /*!
@@ -7477,6 +7481,88 @@ void QGraphicsObject::ungrabGesture(Qt::GestureType gesture)
     }
 }
 
+void QGraphicsItemPrivate::append(QDeclarativeListProperty<QGraphicsObject> *list, QGraphicsObject *item)
+{
+    QGraphicsItemPrivate::get(item)->setParentItemHelper(static_cast<QGraphicsObject *>(list->object), /*newParentVariant=*/0, /*thisPointerVariant=*/0);
+}
+
+/*!
+    Returns a list of this item's children.
+
+    The items are sorted by stacking order. This takes into account both the
+    items' insertion order and their Z-values.
+
+*/
+QDeclarativeListProperty<QGraphicsObject> QGraphicsItemPrivate::childrenList()
+{
+    Q_Q(QGraphicsItem);
+    if (isObject) {
+        QGraphicsObject *that = static_cast<QGraphicsObject *>(q);
+        return QDeclarativeListProperty<QGraphicsObject>(that, &children, QGraphicsItemPrivate::append);
+    } else {
+        //QGraphicsItem is not supported for this property
+        return QDeclarativeListProperty<QGraphicsObject>();
+    }
+}
+
+/*!
+  \internal
+  Returns the width of the item
+  Reimplemented by QGraphicsWidget
+*/
+qreal QGraphicsItemPrivate::width() const
+{
+    return 0;
+}
+
+/*!
+  \internal
+  Set the width of the item
+  Reimplemented by QGraphicsWidget
+*/
+void QGraphicsItemPrivate::setWidth(qreal w)
+{
+    Q_UNUSED(w);
+}
+
+/*!
+  \internal
+  Reset the width of the item
+  Reimplemented by QGraphicsWidget
+*/
+void QGraphicsItemPrivate::resetWidth()
+{
+}
+
+/*!
+  \internal
+  Returns the height of the item
+  Reimplemented by QGraphicsWidget
+*/
+qreal QGraphicsItemPrivate::height() const
+{
+    return 0;
+}
+
+/*!
+  \internal
+  Set the height of the item
+  Reimplemented by QGraphicsWidget
+*/
+void QGraphicsItemPrivate::setHeight(qreal h)
+{
+    Q_UNUSED(h);
+}
+
+/*!
+  \internal
+  Reset the height of the item
+  Reimplemented by QGraphicsWidget
+*/
+void QGraphicsItemPrivate::resetHeight()
+{
+}
+
 /*!
   \property QGraphicsObject::parent
   \brief the parent of the item
@@ -7663,6 +7749,23 @@ void QGraphicsObject::ungrabGesture(Qt::GestureType gesture)
   \sa scale, rotation, QGraphicsItem::transformOriginPoint()
 */
 
+/*!
+    \fn void QGraphicsObject::widthChanged()
+    \internal
+*/
+
+/*!
+    \fn void QGraphicsObject::heightChanged()
+    \internal
+*/
+
+/*!
+
+  \fn QGraphicsObject::childrenChanged()
+
+  This signal gets emitted whenever the children list changes
+  \internal
+*/
 
 /*!
     \class QAbstractGraphicsShapeItem
diff --git a/src/gui/graphicsview/qgraphicsitem.h b/src/gui/graphicsview/qgraphicsitem.h
index 56f94a2..22be64c 100644
--- a/src/gui/graphicsview/qgraphicsitem.h
+++ b/src/gui/graphicsview/qgraphicsitem.h
@@ -547,6 +547,10 @@ class Q_GUI_EXPORT QGraphicsObject : public QObject, public QGraphicsItem
     Q_PROPERTY(qreal rotation READ rotation WRITE setRotation NOTIFY rotationChanged)
     Q_PROPERTY(qreal scale READ scale WRITE setScale NOTIFY scaleChanged)
     Q_PROPERTY(QPointF transformOriginPoint READ transformOriginPoint WRITE setTransformOriginPoint)
+    Q_PRIVATE_PROPERTY(QGraphicsItem::d_func(), QDeclarativeListProperty<QGraphicsObject> children READ childrenList DESIGNABLE false NOTIFY childrenChanged)
+    Q_PRIVATE_PROPERTY(QGraphicsItem::d_func(), qreal width READ width WRITE setWidth NOTIFY widthChanged RESET resetWidth FINAL)
+    Q_PRIVATE_PROPERTY(QGraphicsItem::d_func(), qreal height READ height WRITE setHeight NOTIFY heightChanged RESET resetHeight FINAL)
+    Q_CLASSINFO("DefaultProperty", "children")
     Q_INTERFACES(QGraphicsItem)
 public:
     QGraphicsObject(QGraphicsItem *parent = 0);
@@ -571,6 +575,9 @@ Q_SIGNALS:
     void zChanged();
     void rotationChanged();
     void scaleChanged();
+    void childrenChanged();
+    void widthChanged();
+    void heightChanged();
 
 protected:
     QGraphicsObject(QGraphicsItemPrivate &dd, QGraphicsItem *parent, QGraphicsScene *scene);
diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h
index c256f63..73b8f04 100644
--- a/src/gui/graphicsview/qgraphicsitem_p.h
+++ b/src/gui/graphicsview/qgraphicsitem_p.h
@@ -71,6 +71,63 @@ QT_BEGIN_NAMESPACE
 
 class QGraphicsItemPrivate;
 
+#ifndef QDECLARATIVELISTPROPERTY
+#define QDECLARATIVELISTPROPERTY
+template<typename T>
+class QDeclarativeListProperty {
+public:
+    typedef void (*AppendFunction)(QDeclarativeListProperty<T> *, T*);
+    typedef int (*CountFunction)(QDeclarativeListProperty<T> *);
+    typedef T *(*AtFunction)(QDeclarativeListProperty<T> *, int);
+    typedef void (*ClearFunction)(QDeclarativeListProperty<T> *);
+
+    QDeclarativeListProperty()
+        : object(0), data(0), append(0), count(0), at(0), clear(0), dummy1(0), dummy2(0) {}
+    QDeclarativeListProperty(QObject *o, QList<T *> &list)
+        : object(o), data(&list), append(qlist_append), count(qlist_count), at(qlist_at),
+          clear(qlist_clear), dummy1(0), dummy2(0) {}
+    QDeclarativeListProperty(QObject *o, void *d, AppendFunction a, CountFunction c = 0, AtFunction t = 0,
+                    ClearFunction r = 0)
+        : object(o), data(d), append(a), count(c), at(t), clear(r), dummy1(0), dummy2(0) {}
+
+    bool operator==(const QDeclarativeListProperty &o) const {
+        return object == o.object &&
+               data == o.data &&
+               append == o.append &&
+               count == o.count &&
+               at == o.at &&
+               clear == o.clear;
+    }
+
+    QObject *object;
+    void *data;
+
+    AppendFunction append;
+
+    CountFunction count;
+    AtFunction at;
+
+    ClearFunction clear;
+
+    void *dummy1;
+    void *dummy2;
+
+private:
+    static void qlist_append(QDeclarativeListProperty *p, T *v) {
+        ((QList<T *> *)p->data)->append(v);
+    }
+    static int qlist_count(QDeclarativeListProperty *p) {
+        return ((QList<T *> *)p->data)->count();
+    }
+    static T *qlist_at(QDeclarativeListProperty *p, int idx) {
+        return ((QList<T *> *)p->data)->at(idx);
+    }
+    static void qlist_clear(QDeclarativeListProperty *p) {
+        return ((QList<T *> *)p->data)->clear();
+    }
+};
+#endif
+
 class QGraphicsItemCache
 {
 public:
@@ -238,6 +295,7 @@ public:
     void resolveDepth();
     void addChild(QGraphicsItem *child);
     void removeChild(QGraphicsItem *child);
+    QDeclarativeListProperty<QGraphicsObject> childrenList();
     void setParentItemHelper(QGraphicsItem *parent, const QVariant *newParentVariant,
                              const QVariant *thisPointerVariant);
     void childrenBoundingRectHelper(QTransform *x, QRectF *rect);
@@ -424,11 +482,21 @@ public:
 
     inline QTransform transformToParent() const;
     inline void ensureSortedChildren();
+    static void append(QDeclarativeListProperty<QGraphicsObject> *list, QGraphicsObject *item);
     static inline bool insertionOrder(QGraphicsItem *a, QGraphicsItem *b);
     void ensureSequentialSiblingIndex();
     inline void sendScenePosChange();
     virtual void siblingOrderChange();
 
+    // Private Properties
+    virtual qreal width() const;
+    virtual void setWidth(qreal);
+    virtual void resetWidth();
+
+    virtual qreal height() const;
+    virtual void setHeight(qreal);
+    virtual void resetHeight();
+
     QRectF childrenBoundingRect;
     QRectF needsRepaint;
     QMap<QWidget *, QRect> paintedViewBoundingRects;
diff --git a/src/gui/graphicsview/qgraphicswidget.cpp b/src/gui/graphicsview/qgraphicswidget.cpp
index edb648b..8e439be 100644
--- a/src/gui/graphicsview/qgraphicswidget.cpp
+++ b/src/gui/graphicsview/qgraphicswidget.cpp
@@ -324,6 +324,14 @@ void QGraphicsWidget::resize(const QSizeF &size)
 */
 
 /*!
+
+  \fn QGraphicsWidget::geometryChanged()
+
+  This signal gets emitted whenever the geometry of the item changes
+  \internal
+*/
+
+/*!
     \property QGraphicsWidget::geometry
     \brief the geometry of the widget
 
@@ -384,13 +392,17 @@ void QGraphicsWidget::setGeometry(const QRectF &rect)
     }
     QSizeF oldSize = size();
     QGraphicsLayoutItem::setGeometry(newGeom);
-
+    emit geometryChanged();
     // Send resize event
     bool resized = newGeom.size() != oldSize;
     if (resized) {
         QGraphicsSceneResizeEvent re;
         re.setOldSize(oldSize);
         re.setNewSize(newGeom.size());
+        if (oldSize.width() != newGeom.size().width())
+            emit widthChanged();
+        if (oldSize.height() != newGeom.size().height())
+            emit heightChanged();
         QApplication::sendEvent(this, &re);
     }
 }
@@ -795,6 +807,7 @@ void QGraphicsWidget::setLayout(QGraphicsLayout *l)
     l->setParentLayoutItem(this);
     l->d_func()->reparentChildItems(this);
     l->invalidate();
+    emit layoutChanged();
 }
 
 /*!
diff --git a/src/gui/graphicsview/qgraphicswidget.h b/src/gui/graphicsview/qgraphicswidget.h
index 87c669b..a22b642 100644
--- a/src/gui/graphicsview/qgraphicswidget.h
+++ b/src/gui/graphicsview/qgraphicswidget.h
@@ -83,6 +83,7 @@ class Q_GUI_EXPORT QGraphicsWidget : public QGraphicsObject, public QGraphicsLay
     Q_PROPERTY(QString windowTitle READ windowTitle WRITE setWindowTitle)
     Q_PROPERTY(QRectF geometry READ geometry WRITE setGeometry NOTIFY geometryChanged)
     Q_PROPERTY(bool autoFillBackground READ autoFillBackground WRITE setAutoFillBackground)
+    Q_PROPERTY(QGraphicsLayout* layout READ layout WRITE setLayout NOTIFY layoutChanged)
 public:
     QGraphicsWidget(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0);
     ~QGraphicsWidget();
@@ -180,6 +181,7 @@ public:
 
 Q_SIGNALS:
     void geometryChanged();
+    void layoutChanged();
 
 public Q_SLOTS:
     bool close();
diff --git a/src/gui/graphicsview/qgraphicswidget_p.cpp b/src/gui/graphicsview/qgraphicswidget_p.cpp
index 1835c74..6e397b6 100644
--- a/src/gui/graphicsview/qgraphicswidget_p.cpp
+++ b/src/gui/graphicsview/qgraphicswidget_p.cpp
@@ -44,6 +44,7 @@
 #ifndef QT_NO_GRAPHICSVIEW
 
 #include <QtCore/qdebug.h>
+#include <QtCore/qnumeric.h>
 #include "qgraphicswidget_p.h"
 #include "qgraphicslayout.h"
 #include "qgraphicsscene_p.h"
@@ -825,6 +826,56 @@ void QGraphicsWidgetPrivate::setLayout_helper(QGraphicsLayout *l)
     }
 }
 
+qreal QGraphicsWidgetPrivate::width() const
+{
+    Q_Q(const QGraphicsWidget);
+    return q->geometry().width();
+}
+
+void QGraphicsWidgetPrivate::setWidth(qreal w)
+{
+    if (qIsNaN(w))
+        return;
+    Q_Q(QGraphicsWidget);
+    if (q->geometry().width() == w)
+        return;
+
+    QRectF oldGeom = q->geometry();
+
+    q->setGeometry(QRectF(q->x(), q->y(), w, height()));
+}
+
+void QGraphicsWidgetPrivate::resetWidth()
+{
+    Q_Q(QGraphicsWidget);
+    q->setGeometry(QRectF(q->x(), q->y(), 0, height()));
+}
+
+qreal QGraphicsWidgetPrivate::height() const
+{
+    Q_Q(const QGraphicsWidget);
+    return q->geometry().height();
+}
+
+void QGraphicsWidgetPrivate::setHeight(qreal h)
+{
+    if (qIsNaN(h))
+        return;
+    Q_Q(QGraphicsWidget);
+    if (q->geometry().height() == h)
+        return;
+
+    QRectF oldGeom = q->geometry();
+
+    q->setGeometry(QRectF(q->x(), q->y(), width(), h));
+}
+
+void QGraphicsWidgetPrivate::resetHeight()
+{
+    Q_Q(QGraphicsWidget);
+    q->setGeometry(QRectF(q->x(), q->y(), width(), 0));
+}
+
 QT_END_NAMESPACE
 
 #endif //QT_NO_GRAPHICSVIEW
diff --git a/src/gui/graphicsview/qgraphicswidget_p.h b/src/gui/graphicsview/qgraphicswidget_p.h
index 3ab8737..7116a23 100644
--- a/src/gui/graphicsview/qgraphicswidget_p.h
+++ b/src/gui/graphicsview/qgraphicswidget_p.h
@@ -131,6 +131,15 @@ public:
     void windowFrameHoverLeaveEvent(QGraphicsSceneHoverEvent *event);
     bool hasDecoration() const;
 
+    // Private Properties
+    qreal width() const;
+    void setWidth(qreal);
+    void resetWidth();
+
+    qreal height() const;
+    void setHeight(qreal);
+    void resetHeight();
+
     // State
     inline int attributeToBitIndex(Qt::WidgetAttribute att) const
     {
diff --git a/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp b/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
index 2a1c55a..3313240 100644
--- a/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
+++ b/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
@@ -111,6 +111,8 @@ private slots:
     void fontPropagationSceneChange();
     void geometry_data();
     void geometry();
+    void width();
+    void height();
     void getContentsMargins_data();
     void getContentsMargins();
     void initStyleOption_data();
@@ -766,14 +768,42 @@ void tst_QGraphicsWidget::geometry()
 {
     SubQGraphicsWidget widget;
     QCOMPARE(widget.geometry(), QRectF(widget.pos(), widget.size()));
-
+    QSignalSpy spy(&widget, SIGNAL(geometryChanged()));
     QFETCH(QPointF, pos);
     QFETCH(QSizeF, size);
     widget.setPos(pos);
     widget.resize(size);
+    if (!size.isNull())
+        QCOMPARE(spy.count(), 1);
     QCOMPARE(widget.geometry(), QRectF(pos, size));
 }
 
+void tst_QGraphicsWidget::width()
+{
+    QGraphicsWidget w;
+    QCOMPARE(w.property("width").toReal(), qreal(0));
+    QSignalSpy spy(&w, SIGNAL(widthChanged()));
+    w.setProperty("width", qreal(50));
+    QCOMPARE(w.property("width").toReal(), qreal(50));
+    QCOMPARE(spy.count(), 1);
+    //calling old school setGeometry should work too
+    w.setGeometry(0, 0, 200, 200);
+    QCOMPARE(spy.count(), 2);
+}
+
+void tst_QGraphicsWidget::height()
+{
+    QGraphicsWidget w;
+    QCOMPARE(w.property("height").toReal(), qreal(0));
+    QSignalSpy spy(&w, SIGNAL(heightChanged()));
+    w.setProperty("height", qreal(50));
+    QCOMPARE(w.property("height").toReal(), qreal(50));
+    QCOMPARE(spy.count(), 1);
+    //calling old school setGeometry should work too
+    w.setGeometry(0, 0, 200, 200);
+    QCOMPARE(spy.count(), 2);
+}
+
 void tst_QGraphicsWidget::getContentsMargins_data()
 {
     QTest::addColumn<qreal>("left");
@@ -913,6 +943,7 @@ void tst_QGraphicsWidget::layout()
         layout->addItem(item);
         children.append(item);
     }
+    QSignalSpy spy(&widget, SIGNAL(layoutChanged()));
     widget.setLayout(layout);
 
     QTRY_COMPARE(widget.layout(), static_cast<QGraphicsLayout*>(layout));
@@ -921,7 +952,7 @@ void tst_QGraphicsWidget::layout()
         QCOMPARE(item->parentWidget(), (QGraphicsWidget *)&widget);
         QVERIFY(item->geometry() != QRectF(0, 0, -1, -1));
     }
-
+    QCOMPARE(spy.count(), 1);
     // don't crash
     widget.setLayout(0);
 }