/********************************************************************************
* FaceTrackNoIR		This program is a private project of the some enthusiastic	*
*					gamers from Holland, who don't like to pay much for			*
*					head-tracking.												*
*																				*
* Copyright (C) 2010	Wim Vriend (Developing)									*
*						Ron Hendriks (Researching and Testing)					*
*																				*
* Homepage																		*
*																				*
* This program is free software; you can redistribute it and/or modify it		*
* under the terms of the GNU General Public License as published by the			*
* Free Software Foundation; either version 3 of the License, or (at your		*
* option) any later version.													*
*																				*
* This program is distributed in the hope that it will be useful, but			*
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY	*
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for	*
* more details.																	*
*																				*
* Adopted this widget from the 'textures' sample of the Nokia Qt toolkit.		*
*																				*
* You should have received a copy of the GNU General Public License along		*
* with this program; if not, see <http://www.gnu.org/licenses/>.				*
*********************************************************************************/

#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <QtGui>
#include <QGLWidget>
#include "ftnoir_tracker_base/ftnoir_tracker_base.h"

class QGLShaderProgram;

class FTNOIR_TRACKER_BASE_EXPORT GLWidget : public QGLWidget
{
    Q_OBJECT

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

    QSize minimumSizeHint() const;
    QSize sizeHint() const;
    void rotateBy(int xAngle, int yAngle, int zAngle);
    void setClearColor(const QColor &color);

signals:
    void clicked();

protected:
    void initializeGL();
    void paintGL();
    void resizeGL(int width, int height);

private:
    void makeObject();

    QColor clearColor;
    QPoint lastPos;
    int xRot;
    int yRot;
    int zRot;
    GLuint textures[6];
    QVector<QVector3D> vertices;
    QVector<QVector2D> texCoords;
#ifdef QT_OPENGL_ES_2
    QGLShaderProgram *program;
#endif
};

#endif