1 files changed, 47 insertions, 0 deletions
diff --git a/examples/declarative/extending/binding/happybirthday.cpp b/examples/declarative/extending/binding/happybirthday.cpp
new file mode 100644
index 0000000..81e010e
--- /dev/null
+++ b/examples/declarative/extending/binding/happybirthday.cpp
@@ -0,0 +1,47 @@
+#include "happybirthday.h"
+#include <QTimer>
+
+HappyBirthday::HappyBirthday(QObject *parent)
+: QmlPropertyValueSource(parent), m_line(-1)
+{
+    setName(QString());
+    QTimer *timer = new QTimer(this);
+    QObject::connect(timer, SIGNAL(timeout()), this, SLOT(advance()));
+    timer->start(1000);
+}
+
+void HappyBirthday::setTarget(const QmlMetaProperty &p)
+{
+    m_target = p;
+}
+
+QString HappyBirthday::name() const
+{
+    return m_name;
+}
+
+void HappyBirthday::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 HappyBirthday::advance()
+{
+    m_line = (m_line + 1) % m_lyrics.count();
+
+    m_target.write(m_lyrics.at(m_line));
+}
+
+QML_DEFINE_TYPE(HappyBirthday, HappyBirthday);