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Diffstat (limited to 'examples/network/multicastreceiver/receiver.cpp')
-rw-r--r-- | examples/network/multicastreceiver/receiver.cpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/examples/network/multicastreceiver/receiver.cpp b/examples/network/multicastreceiver/receiver.cpp new file mode 100644 index 0000000000..77446b93ff --- /dev/null +++ b/examples/network/multicastreceiver/receiver.cpp @@ -0,0 +1,84 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** 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 <QtGui> +#include <QtNetwork> + +#include "receiver.h" + +Receiver::Receiver(QWidget *parent) + : QDialog(parent) +{ + groupAddress = QHostAddress("239.255.43.21"); + + statusLabel = new QLabel(tr("Listening for multicasted messages")); + quitButton = new QPushButton(tr("&Quit")); + + udpSocket = new QUdpSocket(this); + udpSocket->bind(45454, QUdpSocket::ShareAddress); + udpSocket->joinMulticastGroup(groupAddress); + + connect(udpSocket, SIGNAL(readyRead()), + this, SLOT(processPendingDatagrams())); + connect(quitButton, SIGNAL(clicked()), this, SLOT(close())); + + QHBoxLayout *buttonLayout = new QHBoxLayout; + buttonLayout->addStretch(1); + buttonLayout->addWidget(quitButton); + buttonLayout->addStretch(1); + + QVBoxLayout *mainLayout = new QVBoxLayout; + mainLayout->addWidget(statusLabel); + mainLayout->addLayout(buttonLayout); + setLayout(mainLayout); + + setWindowTitle(tr("Multicast Receiver")); +} + +void Receiver::processPendingDatagrams() +{ + while (udpSocket->hasPendingDatagrams()) { + QByteArray datagram; + datagram.resize(udpSocket->pendingDatagramSize()); + udpSocket->readDatagram(datagram.data(), datagram.size()); + statusLabel->setText(tr("Received datagram: \"%1\"") + .arg(datagram.data())); + } +} |