| 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 plugins 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 QMEEGOOVERLAYWIDGET_H | 
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| 43 | #define QMEEGOOVERLAYWIDGET_H | 
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| 44 |  | 
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| 45 | #include <QWidget> | 
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| 46 |  | 
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| 47 | //! A widget automatically scaling it's content. | 
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| 48 | /*! | 
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| 49 | */ | 
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| 50 |  | 
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| 51 | class Q_DECL_EXPORT QMeeGoOverlayWidget : public QWidget | 
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| 52 | { | 
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| 53 | public: | 
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| 54 | //! Constructs a new scaling widget. | 
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| 55 | /*! | 
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| 56 | The real surface used for this widget will have the specified | 
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| 57 | width and height. | 
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| 58 | */ | 
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| 59 | QMeeGoOverlayWidget(int surfaceWidth, int surfaceHeight, QWidget *parent = 0); | 
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| 60 |  | 
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| 61 |  | 
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| 62 | //! Event filtering function. | 
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| 63 | /*! | 
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| 64 | Converts coordinates for mouse/touch event. Do not | 
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| 65 | call manually. | 
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| 66 | */ | 
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| 67 | bool eventFilter(QObject *obj, QEvent *event); | 
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| 68 |  | 
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| 69 | //! Standard override. | 
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| 70 | /*! | 
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| 71 | The surface scaling on the target paint device is being | 
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| 72 | set when the widget is displayed for the first time. | 
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| 73 | */ | 
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| 74 | virtual void showEvent(QShowEvent *event); | 
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| 75 |  | 
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| 76 | private: | 
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| 77 | //! Converts coordinates between real & virtual area of the widget. | 
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| 78 | QPoint convertPoint(const QPoint &p); | 
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| 79 |  | 
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| 80 | int sw; /// Surface real width. | 
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| 81 | int sh; /// Surface real height. | 
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| 82 | float scaleW; /// Width scaling factor. | 
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| 83 | float scaleH; /// Height scaling factor. | 
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| 84 | }; | 
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| 85 |  | 
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| 86 | #endif | 
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