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50#ifndef PERSON_H
51#define PERSON_H
52
53#include <QObject>
54#include <QColor>
55#include <QtQml/qqml.h>
56
57class ShoeDescription : public QObject
58{
59 Q_OBJECT
60 Q_PROPERTY(int size READ size WRITE setSize NOTIFY shoeChanged)
61 Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY shoeChanged)
62 Q_PROPERTY(QString brand READ brand WRITE setBrand NOTIFY shoeChanged)
63 Q_PROPERTY(qreal price READ price WRITE setPrice NOTIFY shoeChanged)
64 QML_ANONYMOUS
65public:
66 ShoeDescription(QObject *parent = nullptr);
67
68 int size() const;
69 void setSize(int);
70
71 QColor color() const;
72 void setColor(const QColor &);
73
74 QString brand() const;
75 void setBrand(const QString &);
76
77 qreal price() const;
78 void setPrice(qreal);
79signals:
80 void shoeChanged();
81
82private:
83 int m_size;
84 QColor m_color;
85 QString m_brand;
86 qreal m_price;
87};
88
89class Person : public QObject
90{
91 Q_OBJECT
92 Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
93// ![0]
94 Q_PROPERTY(ShoeDescription *shoe READ shoe CONSTANT)
95// ![0]
96 QML_ANONYMOUS
97public:
98 Person(QObject *parent = nullptr);
99
100 QString name() const;
101 void setName(const QString &);
102
103 ShoeDescription *shoe();
104signals:
105 void nameChanged();
106
107private:
108 QString m_name;
109 ShoeDescription m_shoe;
110};
111
112class Boy : public Person
113{
114 Q_OBJECT
115 QML_ELEMENT
116public:
117 Boy(QObject * parent = nullptr);
118};
119
120class Girl : public Person
121{
122 Q_OBJECT
123 QML_ELEMENT
124public:
125 Girl(QObject * parent = nullptr);
126};
127
128#endif // PERSON_H
129

source code of qtdeclarative/examples/qml/referenceexamples/binding/person.h