92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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#include <math.h>
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#include "mouse.h"
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static const int MouseCount = 7;
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//! [0]
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int main(int argc, char **argv)
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{
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QApplication app(argc, argv);
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qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));
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//! [0]
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//! [1]
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QGraphicsScene scene;
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scene.setSceneRect(-300, -300, 600, 600);
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//! [1] //! [2]
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scene.setItemIndexMethod(QGraphicsScene::NoIndex);
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//! [2]
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//! [3]
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for (int i = 0; i < MouseCount; ++i) {
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Mouse *mouse = new Mouse;
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mouse->setPos(::sin((i * 6.28) / MouseCount) * 200,
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::cos((i * 6.28) / MouseCount) * 200);
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scene.addItem(mouse);
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}
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//! [3]
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//! [4]
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QGraphicsView view(&scene);
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view.setRenderHint(QPainter::Antialiasing);
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view.setBackgroundBrush(QPixmap(":/images/cheese.jpg"));
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//! [4] //! [5]
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view.setCacheMode(QGraphicsView::CacheBackground);
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view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
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view.setDragMode(QGraphicsView::ScrollHandDrag);
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//! [5] //! [6]
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view.setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Colliding Mice"));
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view.resize(400, 300);
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view.show();
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QTimer timer;
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QObject::connect(&timer, SIGNAL(timeout()), &scene, SLOT(advance()));
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timer.start(1000 / 33);
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return app.exec();
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}
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//! [6]
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