window.cpp Example File

 /****************************************************************************
 **
 ** 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."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include <QtGui>

 #include "glwidget.h"
 #include "window.h"

 Window::Window()
 {
     QGridLayout *mainLayout = new QGridLayout;

     for (int i = 0; i < NumRows; ++i) {
         for (int j = 0; j < NumColumns; ++j) {
             QColor clearColor;
             clearColor.setHsv(((i * NumColumns) + j) * 255
                               / (NumRows * NumColumns - 1),
                               255, 63);

             glWidgets[i][j] = new GLWidget(0, 0);
             glWidgets[i][j]->setClearColor(clearColor);
             glWidgets[i][j]->rotateBy(+42 * 16, +42 * 16, -21 * 16);
             mainLayout->addWidget(glWidgets[i][j], i, j);

             connect(glWidgets[i][j], SIGNAL(clicked()),
                     this, SLOT(setCurrentGlWidget()));
         }
     }
     setLayout(mainLayout);

     currentGlWidget = glWidgets[0][0];

     QTimer *timer = new QTimer(this);
     connect(timer, SIGNAL(timeout()), this, SLOT(rotateOneStep()));
     timer->start(20);

     setWindowTitle(tr("Textures"));
 }

 void Window::setCurrentGlWidget()
 {
     currentGlWidget = qobject_cast<GLWidget *>(sender());
 }

 void Window::rotateOneStep()
 {
     if (currentGlWidget)
         currentGlWidget->rotateBy(+2 * 16, +2 * 16, -1 * 16);
 }