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window.cpp Example File
^{opengl/2dpainting/window.cpp}

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    ** Copyright (C) 2006-2006 Trolltech AS. All rights reserved.
    **
    ** This file is part of the documentation of the Qt Toolkit.
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    ** License version 2.0 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 GNU
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    #include <QtGui>
    #include "glwidget.h"
    #include "widget.h"
    #include "window.h"

    Window::Window()
        : QWidget()
    {
        Widget *native = new Widget(&helper, this);
        GLWidget *openGL = new GLWidget(&helper, this);
        QLabel *nativeLabel = new QLabel(tr("Native"));
        nativeLabel->setAlignment(Qt::AlignHCenter);
        QLabel *openGLLabel = new QLabel(tr("OpenGL"));
        openGLLabel->setAlignment(Qt::AlignHCenter);

        QGridLayout *layout = new QGridLayout;
        layout->addWidget(native, 0, 0);
        layout->addWidget(openGL, 0, 1);
        layout->addWidget(nativeLabel, 1, 0);
        layout->addWidget(openGLLabel, 1, 1);
        setLayout(layout);

        QTimer *timer = new QTimer(this);
        connect(timer, SIGNAL(timeout()), native, SLOT(animate()));
        connect(timer, SIGNAL(timeout()), openGL, SLOT(animate()));
        timer->start(50);

        setWindowTitle(tr("2D Painting on Native and OpenGL Widgets"));
    }