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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, 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 <QElapsedTimer>
#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) override;
void paintGL() override;
void initializeGL() 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 = 0;
qreal m_fScale = 1;
bool m_showBubbles = true;
QVector<QVector3D> m_vertices;
QVector<QVector3D> m_normals;
bool m_qtLogo = true;
QVector<Bubble *> m_bubbles;
int m_frames = 0;
QElapsedTimer m_time;
QOpenGLShader *m_vshader1 = nullptr;
QOpenGLShader *m_fshader1 = nullptr;
QOpenGLShader *m_vshader2 = nullptr;
QOpenGLShader *m_fshader2 = nullptr;
QOpenGLShaderProgram *m_program1 = nullptr;
QOpenGLShaderProgram *m_program2 = nullptr;
QOpenGLTexture *m_texture = nullptr;
QOpenGLBuffer m_vbo1;
QOpenGLBuffer m_vbo2;
int m_vertexAttr1 = 0;
int m_normalAttr1 = 0;
int m_matrixUniform1 = 0;
int m_vertexAttr2 = 0;
int m_normalAttr2 = 0;
int m_texCoordAttr2 = 0;
int m_matrixUniform2 = 0;
int m_textureUniform2 = 0;
bool m_transparent = false;
QPushButton *m_btn = nullptr;
bool m_hasButton;
QColor m_background;
};
#endif
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