Home · All Namespaces · All Classes · Main Classes · Grouped Classes · Modules · Functions

mainwindow.cpp Example File
opengl/hellogl_es/mainwindow.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
 ** Contact: Qt Software Information ([email protected])
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 2.1 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU Lesser General Public License version 2.1 requirements
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** In addition, as a special exception, Nokia gives you certain
 ** additional rights. These rights are described in the Nokia Qt LGPL
 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
 ** package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 3.0 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU General Public License version 3.0 requirements will be
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** If you are unsure which license is appropriate for your use, please
 ** contact the sales department at [email protected].
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #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();
 }