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glwidget.h

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** This file is part of the example classes of the Qt Toolkit.
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** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
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#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <QBrush>
#include <QFont>
#include <QImage>
#include <QPen>
#include <QGLWidget>
#include <QTimer>

class Bubble;
class QPaintEvent;
class QWidget;

class GLWidget : public QGLWidget
{
    Q_OBJECT

public:
    GLWidget(QWidget *parent = 0);
    ~GLWidget();

    QSize sizeHint() const;
    int xRotation() const { return xRot; }
    int yRotation() const { return yRot; }
    int zRotation() const { return zRot; }

public slots:
    void setXRotation(int angle);
    void setYRotation(int angle);
    void setZRotation(int angle);

protected:
    void initializeGL();
    void paintEvent(QPaintEvent *event);
    void resizeGL(int width, int height);
    void mousePressEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);
    void showEvent(QShowEvent *event);

private slots:
    void animate();

private:
    GLuint makeObject();
    void createBubbles(int number);
    void drawInstructions(QPainter *painter);
    void extrude(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2);
    void normalizeAngle(int *angle);
    void quad(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,
              GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4);
    void setupViewport(int width, int height);

    GLuint object;
    int xRot;
    int yRot;
    int zRot;
    QPoint lastPos;
    QColor trolltechGreen;
    QColor trolltechPurple;
    QList<Bubble*> bubbles;
    QTimer animationTimer;
};

#endif

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