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controller.cpp Example File
dbus/remotecontrolledcar/controller/controller.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2005-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
 **
 ** This file is part of the documentation of the Qt Toolkit.
 **
 ** Licensees holding a valid Qt License Agreement may use this file in
 ** accordance with the rights, responsibilities and obligations
 ** contained therein.  Please consult your licensing agreement or
 ** contact [email protected] if any conditions of this licensing
 ** agreement are not clear to you.
 **
 ** Further information about Qt licensing is available at:
 ** http://trolltech.com/products/appdev/licensing.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/

 #include <QtGui>

 #include "controller.h"
 #include "car_interface_p.h"

 Controller::Controller(QWidget *parent)
     : QWidget(parent)
 {
     ui.setupUi(this);
     car = new CarInterface("com.trolltech.CarExample", "/Car",
                            QDBusConnection::sessionBus(), this);
     startTimer(1000);
 }

 void Controller::timerEvent(QTimerEvent *event)
 {
     Q_UNUSED(event);
     if (car->isValid())
         ui.label->setText("connected");
     else
         ui.label->setText("disconnected");
 }

 void Controller::on_accelerate_clicked()
 {
     car->accelerate();
 }

 void Controller::on_decelerate_clicked()
 {
     car->decelerate();
 }

 void Controller::on_left_clicked()
 {
     car->turnLeft();
 }

 void Controller::on_right_clicked()
 {
     car->turnRight();
 }