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# glwidget.h Example File
opengl/framebufferobject/glwidget.h

    /****************************************************************************
    **
    ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
    **
    ** Licensees holding valid Qt Preview licenses may use this file in
    ** accordance with the Qt Preview License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    ** information about Qt Commercial License Agreements.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/

    #include <QtOpenGL>
    #include <QImage>
    #include <QTimeLine>
    #include <QSvgRenderer>

    class GLWidget : public QGLWidget
    {
        Q_OBJECT

    public:
        GLWidget(QWidget *parent);
        ~GLWidget();

        void saveGLState();
        void restoreGLState();

        void paintEvent(QPaintEvent *);
        void mousePressEvent(QMouseEvent *);
        void mouseDoubleClickEvent(QMouseEvent *);
        void mouseMoveEvent(QMouseEvent *);
        void timerEvent(QTimerEvent *);
        void wheelEvent(QWheelEvent *);

    public slots:
        void animate(qreal);
        void animFinished();
        void draw();

    private:
        QPoint anchor;
        float scale;
        float rot_x, rot_y, rot_z;
        GLuint tile_list;
        GLfloat *wave;

        QImage logo;
        QTimeLine *anim;
        QSvgRenderer *svg_renderer;
        QGLFramebufferObject *fbo;
    };