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#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <QGLWidget>
class usrAiNode;
class GLWidget : public QGLWidget
{
    Q_OBJECT

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

    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);

signals:
    void xRotationChanged(int angle);
    void yRotationChanged(int angle);
    void zRotationChanged(int angle);

protected:
    void initializeGL();
    void paintGL();
    void resizeGL(int width, int height);
    void mousePressEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);
    void wheelEvent(QWheelEvent *);
    void mouseReleaseEvent(QMouseEvent *);
    void mouseDoubleClickEvent(QMouseEvent *);
    void keyPressEvent( QKeyEvent *);

private slots:
    void advanceGears();

private:
    GLuint makeLoadObj();
    GLuint makeGear(const GLfloat *reflectance, GLdouble innerRadius,
                    GLdouble outerRadius, GLdouble thickness,
                    GLdouble toothSize, GLint toothCount);
    void drawGear(GLuint gear, GLdouble dx, GLdouble dy, GLdouble dz,
                  GLdouble angle);
    void normalizeAngle(int *angle);
    float getNearLen();
    void creatBasicNodeTree();
    unsigned int drawGrid(float size, float step);
void setViewportSub(int x, int y, int width, int height, float nearPlane, float farPlane);
void setFrustum(float fovY, float aspectRatio, float front, float back,float floatArry[]);
void setFrustum(float l, float r, float b, float t, float n, float f, float floatArry[]);
void setModelMat(const char *objname, GLfloat Tx, GLfloat Ty, GLfloat Tz, GLfloat Rx, GLfloat Ry, GLfloat Rz);

    GLuint gear1;
    GLuint gear2;
    GLuint gear3;
    int xRot;
    int yRot;
    int zRot;
    int gear1Rot;
    float wordx;
    float wordy;
    int wordz;
    float viewNearLen;
    int viewNearLenSteps;
    bool fullscreen; //全屏幕标志
    QPoint lastPos;
    usrAiNode* usrAiNodeRoot;
    //float axes[][6];

};

#endif