3 files changed, 5 insertions, 1 deletions
diff --git a/src/gui/graphicsview/qgraphicswidget.cpp b/src/gui/graphicsview/qgraphicswidget.cpp
index 131ee87..654a432 100644
--- a/src/gui/graphicsview/qgraphicswidget.cpp
+++ b/src/gui/graphicsview/qgraphicswidget.cpp
@@ -801,6 +801,7 @@ 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 468a134..730674c 100644
--- a/src/gui/graphicsview/qgraphicswidget.h
+++ b/src/gui/graphicsview/qgraphicswidget.h
@@ -82,6 +82,7 @@ class Q_GUI_EXPORT QGraphicsWidget : public QGraphicsObject, public QGraphicsLay
     Q_PROPERTY(Qt::WindowFlags windowFlags READ windowFlags WRITE setWindowFlags)
     Q_PROPERTY(QString windowTitle READ windowTitle WRITE setWindowTitle)
     Q_PROPERTY(QRectF geometry READ geometry WRITE setGeometry NOTIFY geometryChanged)
+    Q_PROPERTY(QGraphicsLayout* layout READ layout WRITE setLayout NOTIFY layoutChanged)
 public:
     QGraphicsWidget(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0);
     ~QGraphicsWidget();
@@ -176,6 +177,7 @@ public:
 
 Q_SIGNALS:
     void geometryChanged();
+    void layoutChanged();
 
 public Q_SLOTS:
     bool close();
diff --git a/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp b/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
index 5a3a54c..b78ef26 100644
--- a/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
+++ b/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
@@ -942,6 +942,7 @@ 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));
@@ -950,7 +951,7 @@ 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);
 }