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Diffstat (limited to 'examples/bttennis/tennisclient.cpp')
-rw-r--r-- | examples/bttennis/tennisclient.cpp | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/examples/bttennis/tennisclient.cpp b/examples/bttennis/tennisclient.cpp new file mode 100644 index 00000000..ae7e5ceb --- /dev/null +++ b/examples/bttennis/tennisclient.cpp @@ -0,0 +1,200 @@ +/**************************************************************************** +** +** 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. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "tennisclient.h" + +#include <qbluetoothsocket.h> + +#include <QtCore/QDataStream> +#include <QtCore/QByteArray> + +#include <QtCore/QStringList> + +TennisClient::TennisClient(QObject *parent) +: QObject(parent), socket(0), stream(0), elapsed(new QTime), lagTimeout(0) +{ + lagTimer.setInterval(1000); + connect(&lagTimer, SIGNAL(timeout()), this, SLOT(sendEcho())); +} + +TennisClient::~TennisClient() +{ + stopClient(); +} + +//! [startClient] +void TennisClient::startClient(const QBluetoothServiceInfo &remoteService) +{ + if (socket) + return; + + serviceInfo = remoteService; + + // Connect to service + socket = new QBluetoothSocket(QBluetoothSocket::L2capSocket); + qDebug() << "Create socket"; + socket->connectToService(remoteService); + qDebug() << "ConnecttoService done"; + + connect(socket, SIGNAL(readyRead()), this, SLOT(readSocket())); + connect(socket, SIGNAL(connected()), this, SLOT(connected())); + connect(socket, SIGNAL(disconnected()), this, SIGNAL(disconnected())); + connect(socket, SIGNAL(disconnected()), this, SLOT(socketDisconnected())); + connect(socket, SIGNAL(error(QBluetoothSocket::SocketError)), this, SLOT(error(QBluetoothSocket::SocketError))); + + lagTimer.start(); +} +//! [startClient] + +//! [stopClient] +void TennisClient::stopClient() +{ + if (socket == 0) // already stopped + return; + + qDebug() << Q_FUNC_INFO << "closing client!"; + + lagTimer.stop(); + + delete stream; + stream = 0; + + socket->deleteLater(); + socket = 0; +} +//! [stopClient] + +//! [socketDisconnected] +void TennisClient::socketDisconnected() +{ + qDebug() << "Got socketDisconnected"; + stopClient(); +} +//! [socketDisconnected] + +//! [readSocket] +void TennisClient::readSocket() +{ + if (!socket) + return; + + while (socket->bytesAvailable()) { + QString str; + + *stream >> str; + + QStringList args = str.split(QChar(' ')); + QString s = args.takeFirst(); + + if (s == "m" && args.count() == 2) { + emit moveBall(args.at(0).toInt(), args.at(1).toInt()); + } + else if (s == "s" && args.count() == 2){ + emit score(args.at(0).toInt(), args.at(1).toInt()); + } + else if (s == "l" && args.count() == 1){ + emit moveLeftPaddle(args.at(0).toInt()); + } + else if (s == "e"){ // echo + QByteArray b; + QDataStream s(&b, QIODevice::WriteOnly); + s << str; + socket->write(b); + } + else if (s == "E"){ + lagTimeout = 0; + QTime then = QTime::fromString(args.at(0), "hh:mm:ss.zzz"); + if (then.isValid()) { + emit lag(then.msecsTo(QTime::currentTime())); +// qDebug() << "RTT: " << then.msecsTo(QTime::currentTime()) << "ms"; + } + } + else { + qDebug() << Q_FUNC_INFO << "Unknown command" << str; + } + } +} +//! [readSocket] + +//! [moveRightPaddle] +void TennisClient::moveRightPaddle(int y) +{ + int msec = elapsed->elapsed(); + + if (stream && msec > 50) { + QByteArray b; + QDataStream s(&b, QIODevice::WriteOnly); + s << QString("r %1").arg(y); + socket->write(b); + elapsed->restart(); + } +} +//! [moveRightPaddle] + +//! [connected] +void TennisClient::connected() +{ + stream = new QDataStream(socket); + emit connected(socket->peerName()); +} +//! [connected] + +void TennisClient::error(QBluetoothSocket::SocketError err) +{ + qDebug() << "Got socket error" <<Q_FUNC_INFO << "error" << err; + emit disconnected(); +} + +void TennisClient::sendEcho() +{ + if (lagTimeout) { + lagTimeout--; + return; + } + + if (stream) { + QByteArray b; + QDataStream s(&b, QIODevice::WriteOnly); + s << QString("E %1").arg(QTime::currentTime().toString("hh:mm:ss.zzz")); + socket->write(b); + lagTimeout = 10; + } +} |