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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia Plc 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 "sender.h"
Sender::Sender(QWidget *parent)
: QDialog(parent)
{
groupAddress = QHostAddress("239.255.43.21");
statusLabel = new QLabel(tr("Ready to multicast datagrams to group %1 on port 45454").arg(groupAddress.toString()));
ttlLabel = new QLabel(tr("TTL for multicast datagrams:"));
ttlSpinBox = new QSpinBox;
ttlSpinBox->setRange(0, 255);
QHBoxLayout *ttlLayout = new QHBoxLayout;
ttlLayout->addWidget(ttlLabel);
ttlLayout->addWidget(ttlSpinBox);
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(ttlSpinBox, SIGNAL(valueChanged(int)), this, SLOT(ttlChanged(int)));
connect(startButton, SIGNAL(clicked()), this, SLOT(startSending()));
connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
connect(timer, SIGNAL(timeout()), this, SLOT(sendDatagram()));
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addWidget(statusLabel);
mainLayout->addLayout(ttlLayout);
mainLayout->addWidget(buttonBox);
setLayout(mainLayout);
setWindowTitle(tr("Multicast Sender"));
ttlSpinBox->setValue(1);
}
void Sender::ttlChanged(int newTtl)
{
udpSocket->setSocketOption(QAbstractSocket::MulticastTtlOption, newTtl);
}
void Sender::startSending()
{
startButton->setEnabled(false);
timer->start(1000);
}
void Sender::sendDatagram()
{
statusLabel->setText(tr("Now sending datagram %1").arg(messageNo));
QByteArray datagram = "Multicast message " + QByteArray::number(messageNo);
udpSocket->writeDatagram(datagram.data(), datagram.size(),
groupAddress, 45454);
++messageNo;
}
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