Home · All Classes · Main Classes · Grouped Classes · Modules · Functions

glwidget.h Example File
^{opengl/grabber/glwidget.h}

    /****************************************************************************
    **
    ** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
    **
    ** This file is part of the documentation of the Qt Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License version 2.0 as published by the Free Software Foundation
    ** and appearing in the file LICENSE.GPL included in the packaging of
    ** this file.  Please review the following information to ensure GNU
    ** General Public Licensing requirements will be met:
    ** http://www.trolltech.com/products/qt/opensource.html
    **
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://www.trolltech.com/products/qt/licensing.html or contact the
    ** sales department at sales@trolltech.com.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/

    #ifndef GLWIDGET_H
    #define GLWIDGET_H

    #include <QGLWidget>

    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);

    private slots:
        void advanceGears();

    private:
        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);

        GLuint gear1;
        GLuint gear2;
        GLuint gear3;
        int xRot;
        int yRot;
        int zRot;
        int gear1Rot;

        QPoint lastPos;
    };

    #endif