/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef GLWIDGET_H+
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#define GLWIDGET_H+
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+
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#include <QGLWidget>+
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+
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class Geometry;+
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class Cube;+
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class Tile;+
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QT_BEGIN_NAMESPACE+
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class QGLPixelBuffer;+
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QT_END_NAMESPACE+
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+
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class GLWidget : public QGLWidget+
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{+
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public:+
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    GLWidget(QWidget *parent = 0);+
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    ~GLWidget();+
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+
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protected:+
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    void initializeGL();+
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    void paintGL();+
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    void resizeGL(int width, int height);+
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    void mousePressEvent(QMouseEvent *) { setAnimationPaused(true); }+
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    void mouseReleaseEvent(QMouseEvent *) { setAnimationPaused(false); }+
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+
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private:+
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    void initializeGeometry();+
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    void initPbuffer();+
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    void initCommon();+
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    void perspectiveProjection();+
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    void orthographicProjection();+
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    void drawPbuffer();+
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    void setAnimationPaused(bool enable);+
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+
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    qreal aspect;+
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    GLuint dynamicTexture;+
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    GLuint cubeTexture;+
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    bool hasDynamicTextureUpdate;+
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    QGLPixelBuffer *pbuffer;+
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    Geometry *geom;+
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    Cube *cube;+
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    Tile *backdrop;+
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    QList<Cube *> cubes;+
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    QList<Tile *> tiles;+
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+
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};+
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//! [3]+
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+
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#endif+
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