diff -r dee5afe5301f -r 3f74d0d4af4c doc/src/snippets/modelview-subclasses/window.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/src/snippets/modelview-subclasses/window.cpp	Thu Apr 08 14:19:33 2010 +0300
@@ -0,0 +1,113 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QAction>
+#include <QDataStream>
+#include <QMenu>
+#include <QMenuBar>
+#include <QFile>
+#include <QFileDialog>
+#include <QListView>
+
+#include "window.h"
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+{
+    setWindowTitle("Model/View example");
+
+    setupModelView();
+
+    QAction *openAction = new QAction(tr("&Open"), this);
+    QAction *quitAction = new QAction(tr("E&xit"), this);
+    QMenu *fileMenu = new QMenu(tr("&File"), this);
+    fileMenu->addAction(openAction);
+    fileMenu->addAction(quitAction);
+    menuBar()->addMenu(fileMenu);
+
+    connect(openAction, SIGNAL(triggered()), this, SLOT(selectOpenFile()));
+    connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
+
+    setCentralWidget(view);
+}
+
+void MainWindow::setupModelView()
+{
+    model = new LinearModel(this);
+    view = new LinearView(this);
+    view->setModel(model);
+}
+
+void MainWindow::selectOpenFile()
+{
+    QString fileName = QFileDialog::getOpenFileName(this,
+        tr("Select a file to open"), "", tr("Sound files (*.wav)"));
+    
+    if (!fileName.isEmpty())
+        openFile(fileName);
+}
+
+void MainWindow::openFile(const QString &fileName)
+{
+    QFile file(fileName);
+    int length = file.size();
+
+    if (file.open(QFile::ReadOnly)) {
+        model->removeRows(0, model->rowCount());
+
+        int rows = (length - 0x2c)/2;
+        model->insertRows(0, rows);
+
+        // Perform some dodgy tricks to extract the data from the file.
+        QDataStream stream(&file);
+        stream.setByteOrder(QDataStream::LittleEndian);
+
+        Q_INT16 left;
+        Q_INT16 right;
+
+        for (int row = 0; row < rows; ++row) {
+            QModelIndex index = model->index(row);
+
+            stream >> left >> right;
+            model->setData(index, int(left / 256));
+        }
+    }
+}