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diff --git a/examples/tools/codecs/previewform.cpp b/examples/tools/codecs/previewform.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 <QtGui>
+
+#include "previewform.h"
+
+PreviewForm::PreviewForm(QWidget *parent)
+    : QDialog(parent)
+{
+    encodingComboBox = new QComboBox;
+
+    encodingLabel = new QLabel(tr("&Encoding:"));
+    encodingLabel->setBuddy(encodingComboBox);
+
+    textEdit = new QTextEdit;
+    textEdit->setLineWrapMode(QTextEdit::NoWrap);
+    textEdit->setReadOnly(true);
+
+    buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
+                                    | QDialogButtonBox::Cancel);
+
+    connect(encodingComboBox, SIGNAL(activated(int)),
+            this, SLOT(updateTextEdit()));
+    connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
+    connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
+
+    QGridLayout *mainLayout = new QGridLayout;
+    mainLayout->addWidget(encodingLabel, 0, 0);
+    mainLayout->addWidget(encodingComboBox, 0, 1);
+    mainLayout->addWidget(textEdit, 1, 0, 1, 2);
+    mainLayout->addWidget(buttonBox, 2, 0, 1, 2);
+    setLayout(mainLayout);
+
+    setWindowTitle(tr("Choose Encoding"));
+    resize(400, 300);
+}
+
+void PreviewForm::setCodecList(const QList<QTextCodec *> &list)
+{
+    encodingComboBox->clear();
+    foreach (QTextCodec *codec, list)
+        encodingComboBox->addItem(codec->name(), codec->mibEnum());
+}
+
+void PreviewForm::setEncodedData(const QByteArray &data)
+{
+    encodedData = data;
+    updateTextEdit();
+}
+
+void PreviewForm::updateTextEdit()
+{
+    int mib = encodingComboBox->itemData(
+                      encodingComboBox->currentIndex()).toInt();
+    QTextCodec *codec = QTextCodec::codecForMib(mib);
+
+    QTextStream in(&encodedData);
+    in.setAutoDetectUnicode(false);
+    in.setCodec(codec);
+    decodedStr = in.readAll();
+
+    textEdit->setPlainText(decodedStr);
+}