- Qt 5.5
- Qt QML
- Extending QML - Binding Example
- happybirthdaysong.h Example File
- Qt 5.5.1 Reference Documentation

# happybirthdaysong.h Example File

referenceexamples/binding/happybirthdaysong.h

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** 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:
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    #ifndef HAPPYBIRTHDAYSONG_H
    #define HAPPYBIRTHDAYSONG_H

    #include <QQmlPropertyValueSource>
    #include <QQmlProperty>

    #include <QStringList>

    class HappyBirthdaySong : public QObject, public QQmlPropertyValueSource
    {
        Q_OBJECT
        Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
        Q_INTERFACES(QQmlPropertyValueSource)
    public:
        HappyBirthdaySong(QObject *parent = 0);

        virtual void setTarget(const QQmlProperty &);

        QString name() const;
        void setName(const QString &);

    private slots:
        void advance();

    signals:
        void nameChanged();
    private:
        int m_line;
        QStringList m_lyrics;
        QQmlProperty m_target;
        QString m_name;
    };

    #endif // HAPPYBIRTHDAYSONG_H