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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the examples of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "mouse.h" |
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43 |
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44 #include <QtGui> |
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45 |
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46 #include <math.h> |
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47 |
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48 static const int MouseCount = 7; |
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49 |
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50 //! [0] |
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51 int main(int argc, char **argv) |
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52 { |
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53 QApplication app(argc, argv); |
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54 qsrand(QTime(0,0,0).secsTo(QTime::currentTime())); |
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55 //! [0] |
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56 |
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57 //! [1] |
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58 QGraphicsScene scene; |
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59 scene.setSceneRect(-300, -300, 600, 600); |
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60 //! [1] //! [2] |
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61 scene.setItemIndexMethod(QGraphicsScene::NoIndex); |
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62 //! [2] |
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63 |
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64 //! [3] |
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65 for (int i = 0; i < MouseCount; ++i) { |
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66 Mouse *mouse = new Mouse; |
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67 mouse->setPos(::sin((i * 6.28) / MouseCount) * 200, |
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68 ::cos((i * 6.28) / MouseCount) * 200); |
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69 scene.addItem(mouse); |
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70 } |
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71 //! [3] |
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72 |
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73 //! [4] |
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74 QGraphicsView view(&scene); |
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75 view.setRenderHint(QPainter::Antialiasing); |
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76 view.setBackgroundBrush(QPixmap(":/images/cheese.jpg")); |
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77 //! [4] //! [5] |
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78 view.setCacheMode(QGraphicsView::CacheBackground); |
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79 view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate); |
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80 view.setDragMode(QGraphicsView::ScrollHandDrag); |
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81 //! [5] //! [6] |
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82 view.setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Colliding Mice")); |
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83 view.resize(400, 300); |
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84 view.show(); |
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85 |
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86 QTimer timer; |
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87 QObject::connect(&timer, SIGNAL(timeout()), &scene, SLOT(advance())); |
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88 timer.start(1000 / 33); |
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89 |
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90 return app.exec(); |
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91 } |
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92 //! [6] |