1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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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 | ** $QT_BEGIN_LICENSE:BSD$
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10 | ** You may use this file under the terms of the BSD license as follows:
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11 | **
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12 | ** "Redistribution and use in source and binary forms, with or without
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13 | ** modification, are permitted provided that the following conditions are
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14 | ** met:
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15 | ** * Redistributions of source code must retain the above copyright
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16 | ** notice, this list of conditions and the following disclaimer.
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17 | ** * Redistributions in binary form must reproduce the above copyright
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18 | ** notice, this list of conditions and the following disclaimer in
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19 | ** the documentation and/or other materials provided with the
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20 | ** distribution.
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21 | ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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22 | ** the names of its contributors may be used to endorse or promote
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23 | ** products derived from this software without specific prior written
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24 | ** permission.
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25 | **
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26 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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27 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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28 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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29 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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30 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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31 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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32 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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33 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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34 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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35 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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36 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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37 | ** $QT_END_LICENSE$
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38 | **
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39 | ****************************************************************************/
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40 |
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41 | #ifndef MOVEMENTTRANSITION_H
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42 | #define MOVEMENTTRANSITION_H
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43 |
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44 | #include <QtGui>
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45 |
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46 | #include "window.h"
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47 |
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48 | //![0]
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49 | class MovementTransition : public QEventTransition
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50 | {
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51 | Q_OBJECT
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52 |
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53 | public:
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54 | MovementTransition(Window *window) :
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55 | QEventTransition(window, QEvent::KeyPress) {
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56 | this->window = window;
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57 | }
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58 | //![0]
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59 |
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60 | //![1]
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61 | protected:
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62 | bool eventTest(QEvent *event) {
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63 | if (event->type() == QEvent::StateMachineWrapped &&
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64 | static_cast<QStateMachine::WrappedEvent *>(event)->event()->type() == QEvent::KeyPress) {
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65 | QEvent *wrappedEvent = static_cast<QStateMachine::WrappedEvent *>(event)->event();
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66 |
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67 | QKeyEvent *keyEvent = static_cast<QKeyEvent *>(wrappedEvent);
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68 | int key = keyEvent->key();
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69 |
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70 | return key == Qt::Key_2 || key == Qt::Key_8 || key == Qt::Key_6 ||
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71 | key == Qt::Key_4;
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72 | }
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73 | return false;
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74 | }
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75 | //![1]
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76 |
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77 | //![2]
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78 | void onTransition(QEvent *event) {
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79 | QKeyEvent *keyEvent = static_cast<QKeyEvent *>(
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80 | static_cast<QStateMachine::WrappedEvent *>(event)->event());
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81 |
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82 | int key = keyEvent->key();
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83 | switch (key) {
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84 | case Qt::Key_4:
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85 | window->movePlayer(Window::Left);
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86 | break;
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87 | case Qt::Key_8:
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88 | window->movePlayer(Window::Up);
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89 | break;
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90 | case Qt::Key_6:
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91 | window->movePlayer(Window::Right);
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92 | break;
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93 | case Qt::Key_2:
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94 | window->movePlayer(Window::Down);
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95 | break;
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96 | default:
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97 | ;
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98 | }
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99 | }
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100 | //![2]
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101 |
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102 | private:
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103 | Window *window;
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104 | };
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105 |
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106 | #endif
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107 |
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