person.h Example File

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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