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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2010 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 documentation 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 <QtGui> |
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43 |
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44 int main(int argv, char **args) |
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45 { |
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46 QApplication app(argv, args); |
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47 |
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48 QStateMachine machine; |
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49 |
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50 //![0] |
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51 QState *s1 = new QState(); |
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52 QState *s11 = new QState(s1); |
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53 QState *s12 = new QState(s1); |
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54 QState *s13 = new QState(s1); |
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55 s1->setInitialState(s11); |
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56 machine.addState(s1); |
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57 //![0] |
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58 |
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59 //![2] |
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60 s12->addTransition(quitButton, SIGNAL(clicked()), s12); |
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61 //![2] |
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62 |
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63 //![1] |
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64 QFinalState *s2 = new QFinalState(); |
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65 s1->addTransition(quitButton, SIGNAL(clicked()), s2); |
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66 machine.addState(s2); |
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67 |
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68 QObject::connect(&machine, SIGNAL(finished()), QApplication::instance(), SLOT(quit())); |
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69 //![1] |
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70 |
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71 QButton *interruptButton = new QPushButton("Interrupt Button"); |
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72 QWidget *mainWindow = new QWidget(); |
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73 |
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74 //![3] |
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75 QHistoryState *s1h = new QHistoryState(s1); |
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76 |
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77 QState *s3 = new QState(); |
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78 s3->assignProperty(label, "text", "In s3"); |
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79 QMessageBox *mbox = new QMessageBox(mainWindow); |
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80 mbox->addButton(QMessageBox::Ok); |
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81 mbox->setText("Interrupted!"); |
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82 mbox->setIcon(QMessageBox::Information); |
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83 QObject::connect(s3, SIGNAL(entered()), mbox, SLOT(exec())); |
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84 s3->addTransition(s1h); |
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85 machine.addState(s3); |
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86 |
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87 s1->addTransition(interruptButton, SIGNAL(clicked()), s3); |
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88 //![3] |
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89 |
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90 return app.exec(); |
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91 } |
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92 |