main.cpp Example File

referenceexamples/attached/main.cpp

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  #include <QCoreApplication>
  #include <QQmlEngine>
  #include <QQmlComponent>
  #include <QDebug>
  #include "birthdayparty.h"
  #include "person.h"

  int main(int argc, char ** argv)
  {
      QCoreApplication app(argc, argv);

      qmlRegisterType<BirthdayPartyAttached>();
      qmlRegisterType<BirthdayParty>("People", 1,0, "BirthdayParty");
      qmlRegisterType<ShoeDescription>();
      qmlRegisterType<Person>();
      qmlRegisterType<Boy>("People", 1,0, "Boy");
      qmlRegisterType<Girl>("People", 1,0, "Girl");

      QQmlEngine engine;
      QQmlComponent component(&engine, QUrl("qrc:example.qml"));
      BirthdayParty *party = qobject_cast<BirthdayParty *>(component.create());

      if (party && party->host()) {
          qWarning() << party->host()->name() << "is having a birthday!";

          if (qobject_cast<Boy *>(party->host()))
              qWarning() << "He is inviting:";
          else
              qWarning() << "She is inviting:";

          for (int ii = 0; ii < party->guestCount(); ++ii) {
              Person *guest = party->guest(ii);

              QDate rsvpDate;
              QObject *attached = qmlAttachedPropertiesObject<BirthdayParty>(guest, false);

              if (attached)
                  rsvpDate = attached->property("rsvp").toDate();
              if (rsvpDate.isNull())
                  qWarning() << "   " << guest->name() << "RSVP date: Hasn't RSVP'd";
              else
                  qWarning() << "   " << guest->name() << "RSVP date:" << qPrintable(rsvpDate.toString());
          }

      } else {
          qWarning() << component.errors();
      }

      return 0;
  }