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<pre> /****************************************************************************
 **
 ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
 **
 ** This file is part of the example classes of the Qt Toolkit.
 **
 ** This file may be used under the terms of the GNU General Public
 ** 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
 ** General Public Licensing requirements will be met:
 ** http:<span class="comment">//www.trolltech.com/products/qt/opensource.html</span>
 **
 ** If you are unsure which license is appropriate for your use, please
 ** review the following information:
 ** http:<span class="comment">//www.trolltech.com/products/qt/licensing.html or contact the</span>
 ** sales department at sales@trolltech.com.
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 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/

 #include &lt;QtGui&gt;

 #include &quot;mainwindow.h&quot;

 static const char * const listEntries[] = {
     QT_TRANSLATE_NOOP(&quot;MainWindow&quot;, &quot;First&quot;),
     QT_TRANSLATE_NOOP(&quot;MainWindow&quot;, &quot;Second&quot;),
     QT_TRANSLATE_NOOP(&quot;MainWindow&quot;, &quot;Third&quot;),
     0
 };

 MainWindow::MainWindow()
 {
     centralWidget = new QWidget;
     setCentralWidget(centralWidget);

     createGroupBox();

     listWidget = new QListWidget;
     for (int i = 0; listEntries[i]; ++i)
         listWidget-&gt;addItem(tr(listEntries[i]));

     QVBoxLayout *mainLayout = new QVBoxLayout;
     mainLayout-&gt;addWidget(groupBox);
     mainLayout-&gt;addWidget(listWidget);
     centralWidget-&gt;setLayout(mainLayout);

     exitAction = new QAction(tr(&quot;E&amp;xit&quot;), this);
     connect(exitAction, SIGNAL(triggered()), qApp, SLOT(quit()));

     fileMenu = menuBar()-&gt;addMenu(tr(&quot;&amp;File&quot;));
     fileMenu-&gt;setPalette(QPalette(Qt::red));
     fileMenu-&gt;addAction(exitAction);

     setWindowTitle(tr(&quot;Language: %1&quot;).arg(tr(&quot;English&quot;)));
     statusBar()-&gt;showMessage(tr(&quot;Internationalization Example&quot;));

     if (tr(&quot;LTR&quot;) == &quot;RTL&quot;)
         setLayoutDirection(Qt::RightToLeft);
 }

 void MainWindow::createGroupBox()
 {
     groupBox = new QGroupBox(tr(&quot;View&quot;));
     perspectiveRadioButton = new QRadioButton(tr(&quot;Perspective&quot;));
     isometricRadioButton = new QRadioButton(tr(&quot;Isometric&quot;));
     obliqueRadioButton = new QRadioButton(tr(&quot;Oblique&quot;));
     perspectiveRadioButton-&gt;setChecked(true);

     QVBoxLayout *groupBoxLayout = new QVBoxLayout;
     groupBoxLayout-&gt;addWidget(perspectiveRadioButton);
     groupBoxLayout-&gt;addWidget(isometricRadioButton);
     groupBoxLayout-&gt;addWidget(obliqueRadioButton);
     groupBox-&gt;setLayout(groupBoxLayout);
 }</pre>
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