/******************************************************************************** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).** All rights reserved.** Contact: Nokia Corporation (qt-info@nokia.com)**** This file is part of the examples of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL$** No Commercial Usage** This file contains pre-release code and may not be distributed.** You may use this file in accordance with the terms and conditions** contained in the Technology Preview License Agreement accompanying** this package.**** GNU Lesser General Public License Usage** Alternatively, this file may be used under the terms of the GNU Lesser** General Public License version 2.1 as published by the Free Software** Foundation and appearing in the file LICENSE.LGPL included in the** packaging of this file. Please review the following information to** ensure the GNU Lesser General Public License version 2.1 requirements** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.**** In addition, as a special exception, Nokia gives you certain additional** rights. These rights are described in the Nokia Qt LGPL Exception** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.**** If you have questions regarding the use of this file, please contact** Nokia at qt-info@nokia.com.****************** $QT_END_LICENSE$******************************************************************************/#include "mouse.h"#include <QtGui>#include <math.h>static const int MouseCount = 7;//! [0]int main(int argc, char **argv){ QApplication app(argc, argv); qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));//! [0]//! [1] QGraphicsScene scene; scene.setSceneRect(-300, -300, 600, 600);//! [1] //! [2] scene.setItemIndexMethod(QGraphicsScene::NoIndex);//! [2]//! [3] 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); }//! [3]//! [4] QGraphicsView view(&scene); view.setRenderHint(QPainter::Antialiasing); view.setBackgroundBrush(QPixmap(":/images/cheese.jpg"));//! [4] //! [5] view.setCacheMode(QGraphicsView::CacheBackground); view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate); view.setDragMode(QGraphicsView::ScrollHandDrag);//! [5] //! [6] view.setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Colliding Mice")); view.resize(400, 300); view.show(); QTimer timer; QObject::connect(&timer, SIGNAL(timeout()), &scene, SLOT(advance())); timer.start(1000 / 33); return app.exec();}//! [6]