Qt Reference Documentation

# birthdayparty.h Example File

declarative/cppextensions/referenceexamples/signal/birthdayparty.h

     /****************************************************************************
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     ** This file is part of the examples of the Qt Toolkit.
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     #ifndef BIRTHDAYPARTY_H
     #define BIRTHDAYPARTY_H

     #include <QObject>
     #include <QDate>
     #include <qdeclarative.h>
     #include "person.h"

     class BirthdayPartyAttached : public QObject
     {
         Q_OBJECT
         Q_PROPERTY(QDate rsvp READ rsvp WRITE setRsvp)
     public:
         BirthdayPartyAttached(QObject *object);

         QDate rsvp() const;
         void setRsvp(const QDate &);

     private:
         QDate m_rsvp;
     };

     class BirthdayParty : public QObject
     {
         Q_OBJECT
         Q_PROPERTY(Person *host READ host WRITE setHost)
         Q_PROPERTY(QDeclarativeListProperty<Person> guests READ guests)
         Q_CLASSINFO("DefaultProperty", "guests")
     public:
         BirthdayParty(QObject *parent = 0);

         Person *host() const;
         void setHost(Person *);

         QDeclarativeListProperty<Person> guests();
         int guestCount() const;
         Person *guest(int) const;

         static BirthdayPartyAttached *qmlAttachedProperties(QObject *);

         void startParty();
     // ![0]
     signals:
         void partyStarted(const QTime &time);
     // ![0]

     private:
         Person *m_host;
         QList<Person *> m_guests;
     };
     QML_DECLARE_TYPEINFO(BirthdayParty, QML_HAS_ATTACHED_PROPERTIES)

     #endif // BIRTHDAYPARTY_H