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# client.h Example File
network/chat/client.h

    /****************************************************************************
    **
    ** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
    **
    ** Licensees holding valid Qt Preview licenses may use this file in
    ** accordance with the Qt Preview License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    ** information about Qt Commercial License Agreements.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/

    #ifndef CLIENT_H
    #define CLIENT_H

    #include <QAbstractSocket>
    #include <QHash>
    #include <QHostAddress>

    #include "server.h"

    class PeerManager;

    class Client : public QObject
    {
        Q_OBJECT

    public:
        Client();

        void sendMessage(const QString &message);
        QString nickName() const;
        bool hasConnection(const QHostAddress &senderIp, int senderPort = -1) const;

    signals:
        void newMessage(const QString &from, const QString &message);
        void newParticipant(const QString &nick);
        void participantLeft(const QString &nick);

    private slots:
        void newConnection(Connection *connection);
        void connectionError(QAbstractSocket::SocketError socketError);
        void disconnected();
        void readyForUse();

    private:
        void removeConnection(Connection *connection);

        PeerManager *peerManager;
        Server server;
        QMultiHash<QHostAddress, Connection *> peers;
    };

    #endif