#include <QtGui>
 int main( int argc, char** argv ){
    QApplication app( argc, argv );
    //give a seed for the pseudo-random generator
    qsrand(QTime::currentTime().msecsTo(QTime(0,0,0)));

    QGraphicsView view;
    QGraphicsScene *scene = new QGraphicsScene(0, 0, 320, 240);
    QAbstractGraphicsShapeItem *gi;
    for (int i = 0; i< 12; ++i ) {
        QColor color = QColor::fromHsv(((qrand()%12)*30), 255, 255);
        QRectF itemRect(qrand()%270, qrand()%190, (10 * (qrand() % 4 + 1)), (10*(qrand() % 4 + 1)));
        if (!(i%3))
            gi = new QGraphicsEllipseItem(itemRect);
        else
            gi = new QGraphicsRectItem(itemRect);
        gi->setBrush(color);

        gi->setFlags(QGraphicsItem::ItemIsSelectable);
        scene->addItem(gi);
    }

    view.setRenderHints(QPainter::Antialiasing);
    view.setDragMode(QGraphicsView::RubberBandDrag);
    view.setContextMenuPolicy(Qt::ActionsContextMenu);
    view.addAction(new QAction("dummy 1",&view));
    view.addAction(new QAction("dummy 2", &view));
    view.setMouseTracking(true);

    view.setScene(scene);
    view.scale(2,2);
    view.resize(680,500);
    view.show();

    return app.exec();
}