--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/declarative/cppextensions/referenceexamples/binding/happybirthdaysong.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,85 @@
+/****************************************************************************
+**
+** 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 examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "happybirthdaysong.h"
+#include <QTimer>
+
+HappyBirthdaySong::HappyBirthdaySong(QObject *parent)
+: QObject(parent), m_line(-1)
+{
+    setName(QString());
+    QTimer *timer = new QTimer(this);
+    QObject::connect(timer, SIGNAL(timeout()), this, SLOT(advance()));
+    timer->start(1000);
+}
+
+void HappyBirthdaySong::setTarget(const QDeclarativeProperty &p)
+{
+    m_target = p;
+}
+
+QString HappyBirthdaySong::name() const
+{
+    return m_name;
+}
+
+void HappyBirthdaySong::setName(const QString &name)
+{
+    if (m_name == name)
+        return;
+
+    m_name = name;
+
+    m_lyrics.clear();
+    m_lyrics << "Happy birthday to you,";
+    m_lyrics << "Happy birthday to you,";
+    m_lyrics << "Happy birthday dear " + m_name + ",";
+    m_lyrics << "Happy birthday to you!";
+    m_lyrics << "";
+    
+    emit nameChanged();
+}
+    
+void HappyBirthdaySong::advance()
+{
+    m_line = (m_line + 1) % m_lyrics.count();
+
+    m_target.write(m_lyrics.at(m_line));
+}
+