[Qt-interest] micecollider example not showing up in a Qt Desinger's generated Graphics View widget

[Usman Ajmal]

Hi,
I am trying to run the micecollider example (given in tutorial of tolltech)
in a Window generated with the help of Qt Designer. In that window i have a
Graphics View in which i am intending to show the mice running here and
there.

I have added the mouse.cpp/h file to my project directory and add the code
in micecollider's main.cpp file to my Ui_MainWindow. When i run i get no
errors but the mice program do not get loaded in my Graphics View. Following
is the snippet of code of  setupUi(QMainWindow *MainWindow) that is creating
problem, i guess. Please let me know what should i do?

I added the code of main.cpp of micecollider to Ui_MainWindow class because
i had to use the graphicsView pointer created by Qt Designer.

Here goes the code

     void setupUi(QMainWindow *MainWindow)
     QGraphicsView *graphicsView;
     ....
     ....
     qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));

     QGraphicsScene scene;
     // scene.setSceneRect(-300, -300, 600, 600);
     scene.setItemIndexMethod(QGraphicsScene::NoIndex);

     for (int i = 0; i < MouseCount; ++i) {
         Mouse *mouse = new Mouse;
         mouse->setPos(::sin((i * 6.28) / MouseCount) * 200,
                       ::cos((i * 6.28) / MouseCount) * 200);
         scene.addItem(mouse);
     }


     graphicsView = new QGraphicsView(&scene, tab); //my graphicsView is in
a tab named 'tab'
     graphicsView->setRenderHint(QPainter::Antialiasing);
     graphicsView->setBackgroundBrush(QPixmap(":/images/cheese.jpg"));
     graphicsView->setCacheMode(QGraphicsView::CacheBackground);

graphicsView->setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
     graphicsView->setDragMode(QGraphicsView::ScrollHandDrag);

     graphicsView->setObjectName(QString::fromUtf8("graphicsView"));
     graphicsView->setGeometry(QRect(10, 10, 721, 541));

     graphicsView->show();


Full ui_MainWindow.h code is here http://pastebin.com/m4d7220b

Thanks for helping always
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