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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** 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 The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef GLWIDGET_H
#define GLWIDGET_H
#include <QOpenGLWidget>
#include <QOpenGLFunctions>
#include <QOpenGLBuffer>
#include <QVector3D>
#include <QMatrix4x4>
#include <QTime>
#include <QVector>
#include <QPushButton>
class Bubble;
class MainWindow;
QT_FORWARD_DECLARE_CLASS(QOpenGLTexture)
QT_FORWARD_DECLARE_CLASS(QOpenGLShader)
QT_FORWARD_DECLARE_CLASS(QOpenGLShaderProgram)
class GLWidget : public QOpenGLWidget, protected QOpenGLFunctions
{
Q_OBJECT
public:
GLWidget(MainWindow *mw, bool button, const QColor &background);
~GLWidget();
public slots:
void setScaling(int scale);
void setLogo();
void setTexture();
void setShowBubbles(bool);
void setTransparent(bool transparent);
private slots:
void handleButtonPress();
protected:
void resizeGL(int w, int h) Q_DECL_OVERRIDE;
void paintGL() Q_DECL_OVERRIDE;
void initializeGL() Q_DECL_OVERRIDE;
private:
void paintTexturedCube();
void paintQtLogo();
void createGeometry();
void createBubbles(int number);
void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4);
void extrude(qreal x1, qreal y1, qreal x2, qreal y2);
MainWindow *m_mainWindow;
qreal m_fAngle;
qreal m_fScale;
bool m_showBubbles;
QVector<QVector3D> m_vertices;
QVector<QVector3D> m_normals;
bool m_qtLogo;
QList<Bubble *> m_bubbles;
int m_frames;
QTime m_time;
QOpenGLShader *m_vshader1;
QOpenGLShader *m_fshader1;
QOpenGLShader *m_vshader2;
QOpenGLShader *m_fshader2;
QOpenGLShaderProgram *m_program1;
QOpenGLShaderProgram *m_program2;
QOpenGLTexture *m_texture;
QOpenGLBuffer m_vbo1;
QOpenGLBuffer m_vbo2;
int m_vertexAttr1;
int m_normalAttr1;
int m_matrixUniform1;
int m_vertexAttr2;
int m_normalAttr2;
int m_texCoordAttr2;
int m_matrixUniform2;
int m_textureUniform2;
bool m_transparent;
QPushButton *m_btn;
bool m_hasButton;
QColor m_background;
};
#endif
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