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

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     #ifndef GLWIDGET_H
     #define GLWIDGET_H

     #include <QGLWidget>
     #include <QTime>

     #include "cl_helper.h"

     class Bubble;
     class GLWidget : public QGLWidget {

         Q_OBJECT
     public:
         GLWidget(QWidget *parent = 0);
         ~GLWidget();
     public slots:
         void setScaling(int scale);
         void setLogo();
         void setTexture();
         void showBubbles(bool);
     protected:
         void paintGL ();
         void initializeGL ();
     private:
         GLuint  m_uiTexture;
         qreal   m_fAngle;
         qreal   m_fScale;
         bool m_showBubbles;
         void paintTexturedCube();
         void paintQtLogo();
         void createGeometry();
         void createBubbles(int number);
         void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4);
         void extrude(qreal x1, qreal y1, qreal x2, qreal y2);
         QList<qreal> vertices;
         QList<qreal> normals;
         q_vertexType *createdVertices;
         q_vertexType *createdNormals;
         int m_vertexNumber;
         bool qtLogo;
         QList<Bubble*> bubbles;
         int frames;
         QTime time;
     };
     #endif