/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
**     of its contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
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****************************************************************************/

#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <QGLWidget>
#include <QTimer>

class Bubble;
class QtLogo;

//! [0]
class GLWidget : public QGLWidget
{
    Q_OBJECT

public:
    GLWidget(QWidget *parent = 0);
    ~GLWidget();
//! [0]

    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);

//! [1]
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:
    void createBubbles(int number);
    void drawInstructions(QPainter *painter);
//! [1]
    void setupViewport(int width, int height);

    QColor qtGreen;
    QColor qtPurple;

    GLuint object;
    int xRot;
    int yRot;
    int zRot;
    QPoint lastPos;
//! [4]
    QtLogo *logo;
    QList<Bubble*> bubbles;
    QTimer animationTimer;
//! [4]
};

#endif // GLWIDGET_H