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#include <QtGui>

#include <QtNetwork>

#include "receiver.h"

Receiver::Receiver(QWidget *parent)

    : QDialog(parent)

{

    statusLabel = new QLabel(tr("Listening for broadcasted messages"));

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

//! [0]

    udpSocket = new QUdpSocket(this);

    udpSocket->bind(45454, QUdpSocket::ShareAddress);

//! [0]

//! [1]

    connect(udpSocket, SIGNAL(readyRead()),

            this, SLOT(processPendingDatagrams()));

//! [1]

    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("Broadcast Receiver"));

}

void Receiver::processPendingDatagrams()

{

//! [2]

    while (udpSocket->hasPendingDatagrams()) {

        QByteArray datagram;

        datagram.resize(udpSocket->pendingDatagramSize());

        udpSocket->readDatagram(datagram.data(), datagram.size());

        statusLabel->setText(tr("Received datagram: \"%1\"")

                             .arg(datagram.data()));

    }

//! [2]

}