sender.cpp

Go to the documentation of this file.

#include <QtGui>
#include <QtNetwork>

#include "sender.h"


Sender::Sender(QWidget *parent)
    : QWidget(parent)
{
    udpSocket = new QUdpSocket(this);

    connect(udpSocket, SIGNAL(connected()), SLOT(udp_connected()));
    connect(udpSocket, SIGNAL(disconnected()), SLOT(udp_disconnected()));
    connect(udpSocket, SIGNAL(readyRead()), SLOT(readPending()));
    connect(udpSocket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), SLOT(udp_stateChanged(QAbstractSocket::SocketState)));
}

void Sender::udp_stateChanged( QAbstractSocket::SocketState state )
{
    if (state != QAbstractSocket::UnconnectedState)
        emit connectionClose();
    if (state == QAbstractSocket::ConnectedState)
        emit connectionOpen();
//  if (state == QAbstractSocket::BoundState)
//      emit connectionBound();
}

void Sender::readPending()
{
    while (udpSocket->hasPendingDatagrams()) 
    {
        QByteArray datagram;
        datagram.resize(udpSocket->pendingDatagramSize());
        
        udpSocket->readDatagram(datagram.data(), datagram.size() );
        emit received(datagram);
    }
}

bool Sender::isConnected()
{
    QAbstractSocket::SocketState state = udpSocket->state();
    
    if (state == QAbstractSocket::ConnectedState)
        return true;
    
    return false;
}

void Sender::connectUrl(QUrl url)
{
    udpSocket->connectToHost( url.host(), url.port() );
}

void Sender::sendText(QString text)
{
    if ( isConnected() )
        udpSocket->write( text.toAscii() );
    else
        emit connectionClose();
}

void Sender::disconnect()
{
    udpSocket->disconnectFromHost();
}

void Sender::udp_connected()
{
    emit connectionOpen();
}

void Sender::udp_disconnected()
{
    emit connectionClose();
}

---