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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef CHATCLIENT_H
+#define CHATCLIENT_H
+
+#include <qbluetoothserviceinfo.h>
+#include <qbluetoothsocket.h>
+
+#include <QtCore/QObject>
+#include <QtCore/QTime>
+#include <QtCore/QTimer>
+
+QTBLUETOOTH_BEGIN_NAMESPACE
+class QBluetoothSocket;
+QTBLUETOOTH_END_NAMESPACE
+
+class QDataStream;
+
+QTBLUETOOTH_USE_NAMESPACE
+
+//! [declaration]
+class TennisClient : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit TennisClient(QObject *parent = 0);
+    ~TennisClient();
+
+    void startClient(const QBluetoothServiceInfo &remoteService);
+    void stopClient();
+
+public slots:
+    void moveRightPaddle(int y);
+    void error(QBluetoothSocket::SocketError);
+
+signals:
+    void moveBall(int x, int y);
+    void score(int left, int right);
+    void moveLeftPaddle(int y);
+
+    void connected(const QString &name);
+    void disconnected();
+
+    void lag(int ms);
+
+private slots:
+    void readSocket();
+    void connected();
+    void sendEcho();
+    void socketDisconnected();
+
+private:
+    QBluetoothSocket *socket;
+    QDataStream *stream;
+    QBluetoothServiceInfo serviceInfo;
+    QTime *elapsed;
+    QTimer lagTimer;
+    int lagTimeout;
+};
+//! [declaration]
+
+#endif // CHATCLIENT_H