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# glwidget.h Example File
opengl/framebufferobject2/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>

    class GLWidget : public QGLWidget
    {
    public:
        GLWidget(QWidget *parent);
        ~GLWidget();
        void initializeGL();
        void resizeGL(int w, int h);
        void paintGL();
        void timerEvent(QTimerEvent *) { update(); }
        void mousePressEvent(QMouseEvent *) { killTimer(timerId); }
        void mouseReleaseEvent(QMouseEvent *) { timerId = startTimer(20); }

        void drawCube(int i, GLfloat z, GLfloat ri, GLfloat jmp, GLfloat amp);

    private:
        GLfloat rot[3], xOffs[3], yOffs[3], xInc[3];
        GLuint pbufferList;
        GLuint cubeTexture;
        int timerId;

        QGLFramebufferObject *fbo;
    };