| 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 (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 | ** $QT_BEGIN_LICENSE:BSD$ | 
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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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