| 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 | ** Commercial Usage | 
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in | 
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the | 
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| 13 | ** Software or, alternatively, in accordance with the terms contained in | 
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| 14 | ** a written agreement between you and Nokia. | 
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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 | ** GNU General Public License Usage | 
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| 29 | ** Alternatively, this file may be used under the terms of the GNU | 
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| 30 | ** General Public License version 3.0 as published by the Free Software | 
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the | 
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| 32 | ** packaging of this file.  Please review the following information to | 
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be | 
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html. | 
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| 35 | ** | 
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| 36 | ** If you have questions regarding the use of this file, please contact | 
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| 37 | ** Nokia at qt-info@nokia.com. | 
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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 | #ifndef MOVEMENTTRANSITION_H | 
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| 43 | #define MOVEMENTTRANSITION_H | 
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| 44 |  | 
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| 45 | #include <QtGui> | 
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| 46 |  | 
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| 47 | #include "window.h" | 
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| 48 |  | 
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| 49 | //![0] | 
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| 50 | class MovementTransition : public QEventTransition | 
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| 51 | { | 
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| 52 | Q_OBJECT | 
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| 53 |  | 
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| 54 | public: | 
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| 55 | MovementTransition(Window *window) : | 
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| 56 | QEventTransition(window, QEvent::KeyPress) { | 
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| 57 | this->window = window; | 
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| 58 | } | 
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| 59 | //![0] | 
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| 60 |  | 
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| 61 | //![1] | 
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| 62 | protected: | 
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| 63 | bool eventTest(QEvent *event) { | 
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| 64 | if (event->type() == QEvent::StateMachineWrapped && | 
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| 65 | static_cast<QStateMachine::WrappedEvent *>(event)->event()->type() == QEvent::KeyPress) { | 
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| 66 | QEvent *wrappedEvent = static_cast<QStateMachine::WrappedEvent *>(event)->event(); | 
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| 67 |  | 
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| 68 | QKeyEvent *keyEvent = static_cast<QKeyEvent *>(wrappedEvent); | 
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| 69 | int key = keyEvent->key(); | 
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| 70 |  | 
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| 71 | return key == Qt::Key_2 || key == Qt::Key_8 || key == Qt::Key_6 || | 
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| 72 | key == Qt::Key_4; | 
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| 73 | } | 
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| 74 | return false; | 
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| 75 | } | 
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| 76 | //![1] | 
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| 77 |  | 
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| 78 | //![2] | 
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| 79 | void onTransition(QEvent *event) { | 
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| 80 | QKeyEvent *keyEvent = static_cast<QKeyEvent *>( | 
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| 81 | static_cast<QStateMachine::WrappedEvent *>(event)->event()); | 
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| 82 |  | 
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| 83 | int key = keyEvent->key(); | 
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| 84 | switch (key) { | 
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| 85 | case Qt::Key_4: | 
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| 86 | window->movePlayer(Window::Left); | 
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| 87 | break; | 
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| 88 | case Qt::Key_8: | 
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| 89 | window->movePlayer(Window::Up); | 
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| 90 | break; | 
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| 91 | case Qt::Key_6: | 
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| 92 | window->movePlayer(Window::Right); | 
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| 93 | break; | 
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| 94 | case Qt::Key_2: | 
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| 95 | window->movePlayer(Window::Down); | 
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| 96 | break; | 
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| 97 | default: | 
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| 98 | ; | 
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| 99 | } | 
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| 100 | } | 
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| 101 | //![2] | 
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| 102 |  | 
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| 103 | private: | 
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| 104 | Window *window; | 
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| 105 | }; | 
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| 106 |  | 
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| 107 | #endif | 
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| 108 |  | 
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