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main.cpp Example File
graphicsview/collidingmice/main.cpp

 /****************************************************************************
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 ** Copyright (C) 2006-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
 **
 ** This file is part of the documentation of the Qt Toolkit.
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 ** Licensees holding a valid Qt License Agreement may use this file in
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 ** contained therein.  Please consult your licensing agreement or
 ** contact [email protected] if any conditions of this licensing
 ** agreement are not clear to you.
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 ** http://trolltech.com/products/appdev/licensing.
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 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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 ****************************************************************************/

 #include "mouse.h"

 #include <QtGui>

 #include <math.h>

 static const int MouseCount = 7;

 int main(int argc, char **argv)
 {
     QApplication app(argc, argv);
     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);
     }

     QGraphicsView view(&scene);
     view.setRenderHint(QPainter::Antialiasing);
     view.setBackgroundBrush(QPixmap(":/images/cheese.jpg"));
     view.setCacheMode(QGraphicsView::CacheBackground);
     view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
     view.setDragMode(QGraphicsView::ScrollHandDrag);
     view.setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Colliding Mice"));
     view.resize(400, 300);
     view.show();

     return app.exec();
 }