Mega Code Archive
QTcpServer based server 2
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**
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** This file is part of the examples of the Qt Toolkit.
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** General Public License version 3.0 as published by the Free Software
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#ifndef SERVER_H
#define SERVER_H
#include <QDialog>
QT_BEGIN_NAMESPACE
class QLabel;
class QPushButton;
class QTcpServer;
QT_END_NAMESPACE
class Server : public QDialog
{
Q_OBJECT
public:
Server(QWidget *parent = 0);
private slots:
void sendFortune();
private:
QLabel *statusLabel;
QPushButton *quitButton;
QTcpServer *tcpServer;
QStringList fortunes;
};
#endif
#include <QtGui>
#include <QtNetwork>
#include <stdlib.h>
#include "server.h"
Server::Server(QWidget *parent)
: QDialog(parent)
{
statusLabel = new QLabel;
quitButton = new QPushButton(tr("Quit"));
quitButton->setAutoDefault(false);
tcpServer = new QTcpServer(this);
if (!tcpServer->listen()) {
QMessageBox::critical(this, tr("Fortune Server"),
tr("Unable to start the server: %1.")
.arg(tcpServer->errorString()));
close();
return;
}
statusLabel->setText(tr("The server is running on port %1.\n"
"Run the Fortune Client example now.")
.arg(tcpServer->serverPort()));
fortunes << tr("You've been leading a dog's life. Stay off the furniture.")
<< tr("You've got to think about tomorrow.")
<< tr("You will be surprised by a loud noise.")
<< tr("You will feel hungry again in another hour.")
<< tr("You might have mail.")
<< tr("You cannot kill time without injuring eternity.")
<< tr("Computers are not intelligent. They only think they are.");
connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
connect(tcpServer, SIGNAL(newConnection()), this, SLOT(sendFortune()));
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("Fortune Server"));
}
void Server::sendFortune()
{
QByteArray block;
QDataStream out(&block, QIODevice::WriteOnly);
out.setVersion(QDataStream::Qt_4_0);
out << (quint16)0;
out << fortunes.at(qrand() % fortunes.size());
out.device()->seek(0);
out << (quint16)(block.size() - sizeof(quint16));
QTcpSocket *clientConnection = tcpServer->nextPendingConnection();
connect(clientConnection, SIGNAL(disconnected()),
clientConnection, SLOT(deleteLater()));
clientConnection->write(block);
clientConnection->disconnectFromHost();
}
#include <QApplication>
#include <QtCore>
#include <stdlib.h>
#include "server.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
Server server;
server.show();
qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
return server.exec();
}
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