- Qt 5.5
- Qt QML
- Extending QML - Attached Properties Example
- person.h Example File
- Qt 5.5.1 Reference Documentation

# person.h Example File

referenceexamples/attached/person.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:
    **
    ** "Redistribution and use in source and binary forms, with or without
    ** modification, are permitted provided that the following conditions are
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    **   * Redistributions of source code must retain the above copyright
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    **     from this software without specific prior written permission.
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    #ifndef PERSON_H
    #define PERSON_H

    #include <QObject>
    #include <QColor>

    class ShoeDescription : public QObject
    {
        Q_OBJECT
        Q_PROPERTY(int size READ size WRITE setSize)
        Q_PROPERTY(QColor color READ color WRITE setColor)
        Q_PROPERTY(QString brand READ brand WRITE setBrand)
        Q_PROPERTY(qreal price READ price WRITE setPrice)
    public:
        ShoeDescription(QObject *parent = 0);

        int size() const;
        void setSize(int);

        QColor color() const;
        void setColor(const QColor &);

        QString brand() const;
        void setBrand(const QString &);

        qreal price() const;
        void setPrice(qreal);
    private:
        int m_size;
        QColor m_color;
        QString m_brand;
        qreal m_price;
    };

    class Person : public QObject
    {
        Q_OBJECT
        Q_PROPERTY(QString name READ name WRITE setName)
        Q_PROPERTY(ShoeDescription *shoe READ shoe)
    public:
        Person(QObject *parent = 0);

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

        ShoeDescription *shoe();
    private:
        QString m_name;
        ShoeDescription m_shoe;
    };

    class Boy : public Person
    {
        Q_OBJECT
    public:
        Boy(QObject * parent = 0);
    };

    class Girl : public Person
    {
        Q_OBJECT
    public:
        Girl(QObject * parent = 0);
    };

    #endif // PERSON_H