3 files changed, 9 insertions, 7 deletions
diff --git a/examples/graphicsview/collidingmice/main.cpp b/examples/graphicsview/collidingmice/main.cpp
index 4a44481..23c91b0 100644
--- a/examples/graphicsview/collidingmice/main.cpp
+++ b/examples/graphicsview/collidingmice/main.cpp
@@ -83,6 +83,10 @@ int main(int argc, char **argv)
     view.resize(400, 300);
     view.show();
 
+    QTimer timer;
+    QObject::connect(&timer, SIGNAL(timeout()), &scene, SLOT(advance()));
+    timer.start(1000 / 33);
+
     return app.exec();
 }
 //! [6]
diff --git a/examples/graphicsview/collidingmice/mouse.cpp b/examples/graphicsview/collidingmice/mouse.cpp
index 1d10574..bbdb4e3 100644
--- a/examples/graphicsview/collidingmice/mouse.cpp
+++ b/examples/graphicsview/collidingmice/mouse.cpp
@@ -65,7 +65,6 @@ Mouse::Mouse()
       color(qrand() % 256, qrand() % 256, qrand() % 256)
 {
     rotate(qrand() % (360 * 16));
-    startTimer(1000 / 33);
 }
 //! [0]
 
@@ -123,8 +122,10 @@ void Mouse::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *
 //! [3]
 
 //! [4]
-void Mouse::timerEvent(QTimerEvent *)
+void Mouse::advance(int step)
 {
+    if (!step)
+        return;
 //! [4]
     // Don't move too far away
 //! [5]
diff --git a/examples/graphicsview/collidingmice/mouse.h b/examples/graphicsview/collidingmice/mouse.h
index 832ea53..c08ce4a 100644
--- a/examples/graphicsview/collidingmice/mouse.h
+++ b/examples/graphicsview/collidingmice/mouse.h
@@ -43,13 +43,10 @@
 #define MOUSE_H
 
 #include <QGraphicsItem>
-#include <QObject>
 
 //! [0]
-class Mouse : public QObject, public QGraphicsItem
+class Mouse : public QGraphicsItem
 {
-    Q_OBJECT
-
 public:
     Mouse();
 
@@ -59,7 +56,7 @@ public:
                QWidget *widget);
 
 protected:
-    void timerEvent(QTimerEvent *event);
+    void advance(int step);
 
 private:
     qreal angle;