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****************************************************************************/

#include "mainwindow.h"

#include <QApplication>

#include <QMenuBar>

#include <QGroupBox>

#include <QGridLayout>

#include <QSlider>

#include <QLabel>

#include <QTimer>

#include "glwidget.h"

MainWindow::MainWindow()

{

    GLWidget *glwidget = new GLWidget();

    QLabel *label = new QLabel(this);

    QTimer *timer = new QTimer(this);

    QSlider *slider = new QSlider(this);

    slider->setOrientation(Qt::Horizontal);

    slider->setRange(0, 100);

    slider->setSliderPosition(50);

    timer->setInterval(10);

    label->setText("A QGlWidget with OpenGl ES");

    label->setAlignment(Qt::AlignHCenter);

    QGroupBox * groupBox = new QGroupBox(this);

    setCentralWidget(groupBox);

    groupBox->setTitle("OpenGL ES Example");

    QGridLayout *layout = new QGridLayout(groupBox);

    layout->addWidget(glwidget,1,0,8,1);

    layout->addWidget(label,9,0,1,1);

    layout->addWidget(slider, 11,0,1,1);

    groupBox->setLayout(layout);

    QMenu *fileMenu = new QMenu("File");

    QMenu *helpMenu = new QMenu("Help");

    QMenu *showMenu = new QMenu("Show");

    menuBar()->addMenu(fileMenu);

    menuBar()->addMenu(showMenu);

    menuBar()->addMenu(helpMenu);

    QAction *exit = new QAction("Exit", fileMenu);

    QAction *aboutQt = new QAction("AboutQt", helpMenu);

    QAction *showLogo = new QAction("Show 3D Logo", showMenu);

    QAction *showTexture = new QAction("Show 2D Texture", showMenu);

    QAction *showBubbles = new QAction("Show bubbles", showMenu);

    showBubbles->setCheckable(true);

    showBubbles->setChecked(true);

    fileMenu->addAction(exit);

    helpMenu->addAction(aboutQt);

    showMenu->addAction(showLogo);

    showMenu->addAction(showTexture);

    showMenu->addAction(showBubbles);

    QObject::connect(timer, SIGNAL(timeout()), glwidget, SLOT(updateGL()));

    QObject::connect(exit, SIGNAL(triggered(bool)), this, SLOT(close()));

    QObject::connect(aboutQt, SIGNAL(triggered(bool)), qApp, SLOT(aboutQt()));

    QObject::connect(showLogo, SIGNAL(triggered(bool)), glwidget, SLOT(setLogo()));

    QObject::connect(showTexture, SIGNAL(triggered(bool)), glwidget, SLOT(setTexture()));

    QObject::connect(showBubbles, SIGNAL(triggered(bool)), glwidget, SLOT(showBubbles(bool)));

    QObject::connect(slider, SIGNAL(valueChanged(int)), glwidget, SLOT(setScaling(int)));

    timer->start();

}