Qt Reference Documentation

main.cpp Example File

declarative/cppextensions/referenceexamples/signal/main.cpp
 /****************************************************************************
 **
 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation ([email protected])
 **
 ** 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
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
 **     the names of its contributors may be used to endorse or promote
 **     products derived from this software without specific prior written
 **     permission.
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
 #include <QCoreApplication>
 #include <QDeclarativeEngine>
 #include <QDeclarativeComponent>
 #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");

     QDeclarativeEngine engine;
     QDeclarativeComponent 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());
         }

         party->startParty();
     } else {
         qWarning() << component.errors();
     }

     return 0;
 }
X

Thank you for giving your feedback.

Make sure it is related to this specific page. For more general bugs and requests, please use the Qt Bug Tracker.