|  | Home · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# sender.cpp Example File
network/broadcastsender/sender.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2004-2007 Trolltech ASA. All rights reserved.
     **
     ** This file is part of the example classes of the Qt Toolkit.
     **
     ** This file may be used under the terms of the GNU General Public
     ** License version 2.0 as published by the Free Software Foundation
     ** and appearing in the file LICENSE.GPL included in the packaging of
     ** this file.  Please review the following information to ensure GNU
     ** General Public Licensing requirements will be met:
     ** http://trolltech.com/products/qt/licenses/licensing/opensource/
     **
     ** If you are unsure which license is appropriate for your use, please
     ** review the following information:
     ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
     ** or contact the sales department at sales@trolltech.com.
     **
     ** In addition, as a special exception, Trolltech gives you certain
     ** additional rights. These rights are described in the Trolltech GPL
     ** Exception version 1.0, which can be found at
     ** http://www.trolltech.com/products/qt/gplexception/ and in the file
     ** GPL_EXCEPTION.txt in this package.
     **
     ** In addition, as a special exception, Trolltech, as the sole copyright
     ** holder for Qt Designer, grants users of the Qt/Eclipse Integration
     ** plug-in the right for the Qt/Eclipse Integration to link to
     ** functionality provided by Qt Designer and its related libraries.
     **
     ** Trolltech reserves all rights not expressly granted herein.
     **
     ** Trolltech ASA (c) 2007
     **
     ** 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 <QtNetwork>

     #include "sender.h"

     Sender::Sender(QWidget *parent)
         : QDialog(parent)
     {
         statusLabel = new QLabel(tr("Ready to broadcast datagrams on port 45454"));

         startButton = new QPushButton(tr("&Start"));
         quitButton = new QPushButton(tr("&Quit"));

         buttonBox = new QDialogButtonBox;
         buttonBox->addButton(startButton, QDialogButtonBox::ActionRole);
         buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);

         timer = new QTimer(this);
         udpSocket = new QUdpSocket(this);
         messageNo = 1;

         connect(startButton, SIGNAL(clicked()), this, SLOT(startBroadcasting()));
         connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
         connect(timer, SIGNAL(timeout()), this, SLOT(broadcastDatagram()));

         QVBoxLayout *mainLayout = new QVBoxLayout;
         mainLayout->addWidget(statusLabel);
         mainLayout->addWidget(buttonBox);
         setLayout(mainLayout);

         setWindowTitle(tr("Broadcast Sender"));
     }

     void Sender::startBroadcasting()
     {
         startButton->setEnabled(false);
         timer->start(1000);
     }

     void Sender::broadcastDatagram()
     {
         statusLabel->setText(tr("Now broadcasting datagram %1").arg(messageNo));
         QByteArray datagram = "Broadcast message " + QByteArray::number(messageNo);
         udpSocket->writeDatagram(datagram.data(), datagram.size(),
                                  QHostAddress::Broadcast, 45454);
         ++messageNo;
     }