openglscene.h


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#ifndef OPENGLSCENE_H
#define OPENGLSCENE_H

#include "point3d.h"

#include <QGraphicsScene>
#include <QTime>

class Model;

class OpenGLScene : public QGraphicsScene
{
    Q_OBJECT

public:
    OpenGLScene();

    void drawBackground(QPainter *painter, const QRectF &rect);

public slots:
    void setModel(Model *model);
    void enableAutoRotate(bool enabled);
    void enableWireframe(bool enabled);
    void enableNormals(bool enabled);
    void setLightPosition(int pos);
    void setModelColor(QRgb color);
    void setBackgroundColor(QRgb color);

protected:
    void mousePressEvent(QGraphicsSceneMouseEvent *event);
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
    void wheelEvent(QGraphicsSceneWheelEvent * wheelEvent);

private:
    void updateMatrix(qreal delta = 1);
    void updateRotation(const QPointF &last, const QPointF &current);

    bool m_wireframeEnabled;
    bool m_normalsEnabled;
    bool m_autoRotate;
    bool m_rotating;

    Point3d m_axis;
    float m_angle;
    float m_lightPos;
    float m_distance;

    QRgb m_backgroundColor;
    QRgb m_modelColor;

    Model *m_model;

    QTime m_time;
    unsigned int m_lastTime;
    unsigned int m_startTime;

    qreal m_accumulated;

    float m_matrix[4][4];
};

#endif