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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the examples of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

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    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 #include <QtNetwork>

    44 

    45 #include <stdlib.h>

    46 

    47 #include "server.h"

    48 #include <qlocalserver.h>

    49 #include <qlocalsocket.h>

    50 

    51 Server::Server(QWidget *parent)

    52     : QDialog(parent)

    53 {

    54     statusLabel = new QLabel;

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

    56     quitButton->setAutoDefault(false);

    57 

    58     server = new QLocalServer(this);

    59     if (!server->listen("fortune")) {

    60         QMessageBox::critical(this, tr("Fortune Server"),

    61                               tr("Unable to start the server: %1.")

    62                               .arg(server->errorString()));

    63         close();

    64         return;

    65     }

    66 

    67     statusLabel->setText(tr("The server is running.\n"

    68                             "Run the Fortune Client example now."));

    69 

    70     fortunes << tr("You've been leading a dog's life. Stay off the furniture.")

    71              << tr("You've got to think about tomorrow.")

    72              << tr("You will be surprised by a loud noise.")

    73              << tr("You will feel hungry again in another hour.")

    74              << tr("You might have mail.")

    75              << tr("You cannot kill time without injuring eternity.")

    76              << tr("Computers are not intelligent. They only think they are.");

    77 

    78     connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));

    79     connect(server, SIGNAL(newConnection()), this, SLOT(sendFortune()));

    80 

    81     QHBoxLayout *buttonLayout = new QHBoxLayout;

    82     buttonLayout->addStretch(1);

    83     buttonLayout->addWidget(quitButton);

    84     buttonLayout->addStretch(1);

    85 

    86     QVBoxLayout *mainLayout = new QVBoxLayout;

    87     mainLayout->addWidget(statusLabel);

    88     mainLayout->addLayout(buttonLayout);

    89     setLayout(mainLayout);

    90 

    91     setWindowTitle(tr("Fortune Server"));

    92 }

    93 

    94 void Server::sendFortune()

    95 {

    96     QByteArray block;

    97     QDataStream out(&block, QIODevice::WriteOnly);

    98     out.setVersion(QDataStream::Qt_4_0);

    99     out << (quint16)0;

   100     out << fortunes.at(qrand() % fortunes.size());

   101     out.device()->seek(0);

   102     out << (quint16)(block.size() - sizeof(quint16));

   103 

   104     QLocalSocket *clientConnection = server->nextPendingConnection();

   105     connect(clientConnection, SIGNAL(disconnected()),

   106             clientConnection, SLOT(deleteLater()));

   107 

   108     clientConnection->write(block);

   109     clientConnection->flush();

   110     clientConnection->disconnectFromServer();

   111 }