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diff --git a/examples/help/simpletextviewer/mainwindow.cpp b/examples/help/simpletextviewer/mainwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/QLibraryInfo>
+#include <QtGui/QApplication>
+#include <QtGui/QAction>
+#include <QtGui/QMenu>
+#include <QtGui/QMenuBar>
+#include <QtGui/QMessageBox>
+
+#include "mainwindow.h"
+#include "findfiledialog.h"
+#include "assistant.h"
+#include "textedit.h"
+
+// ![0]
+MainWindow::MainWindow()
+{
+    assistant = new Assistant;
+// ![0]
+    textViewer = new TextEdit;
+    textViewer->setContents(QLibraryInfo::location(QLibraryInfo::ExamplesPath)
+            + QLatin1String("/help/simpletextviewer/documentation/intro.html"));
+    setCentralWidget(textViewer);
+
+    createActions();
+    createMenus();
+
+    setWindowTitle(tr("Simple Text Viewer"));
+    resize(750, 400);
+// ![1]
+}
+//! [1]
+
+//! [2]
+void MainWindow::closeEvent(QCloseEvent *)
+{
+    delete assistant;
+}
+//! [2]
+
+void MainWindow::about()
+{
+    QMessageBox::about(this, tr("About Simple Text Viewer"),
+                       tr("This example demonstrates how to use\n"
+                          "Qt Assistant as help system for your\n"
+                          "own application."));
+}
+
+//! [3]
+void MainWindow::showDocumentation()
+{
+    assistant->showDocumentation("index.html");    
+}
+//! [3]
+
+void MainWindow::open()
+{
+    FindFileDialog dialog(textViewer, assistant);
+    dialog.exec();
+}
+
+//! [4]
+void MainWindow::createActions()
+{
+    assistantAct = new QAction(tr("Help Contents"), this);
+    assistantAct->setShortcut(tr("F1"));
+    connect(assistantAct, SIGNAL(triggered()), this, SLOT(showDocumentation()));
+//! [4]
+
+    openAct = new QAction(tr("&Open..."), this);
+    openAct->setShortcut(tr("Ctrl+O"));
+    connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
+
+    clearAct = new QAction(tr("&Clear"), this);
+    clearAct->setShortcut(tr("Ctrl+C"));
+    connect(clearAct, SIGNAL(triggered()), textViewer, SLOT(clear()));
+
+    exitAct = new QAction(tr("E&xit"), this);
+    exitAct->setShortcut(tr("Ctrl+Q"));
+    connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
+
+    aboutAct = new QAction(tr("&About"), this);
+    connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
+
+    aboutQtAct = new QAction(tr("About &Qt"), this);
+    connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
+//! [5]
+}
+//! [5]
+
+void MainWindow::createMenus()
+{
+    fileMenu = new QMenu(tr("&File"), this);
+    fileMenu->addAction(openAct);
+    fileMenu->addAction(clearAct);
+    fileMenu->addSeparator();
+    fileMenu->addAction(exitAct);
+
+    helpMenu = new QMenu(tr("&Help"), this);
+    helpMenu->addAction(assistantAct);
+    helpMenu->addSeparator();
+    helpMenu->addAction(aboutAct);
+    helpMenu->addAction(aboutQtAct);
+
+
+    menuBar()->addMenu(fileMenu);
+    menuBar()->addMenu(helpMenu);
+}