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#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);

//! [0]

    udpSocket = new QUdpSocket(this);

//! [0]

    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));

//! [1]

    QByteArray datagram = "Broadcast message " + QByteArray::number(messageNo);

    udpSocket->writeDatagram(datagram.data(), datagram.size(),

                             QHostAddress::Broadcast, 45454);

//! [1]

    ++messageNo;

}