qtmobility/plugins/sensors/maemo6/maemo6tapsensor.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 23 Jun 2010 19:08:38 +0300
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permissions -rw-r--r--
Revision: 201023 Kit: 2010125
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "maemo6tapsensor.h"
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char const * const maemo6tapsensor::id("maemo6.tapsensor");
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bool maemo6tapsensor::m_initDone = false;
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maemo6tapsensor::maemo6tapsensor(QSensor *sensor)
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    : maemo6sensorbase(sensor)
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{
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    const QString sensorName = "tapsensor";
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    initSensor<TapSensorChannelInterface>(sensorName, m_initDone);
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    if (m_sensorInterface){
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        if (!(QObject::connect(m_sensorInterface, SIGNAL(dataAvailable(const Tap&)),
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                               this, SLOT(slotDataAvailable(const Tap&)))))
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            qWarning() << "Unable to connect "<< sensorName;
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    }
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    else
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        qWarning() << "Unable to initialize "<<sensorName;
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    setReading<QTapReading>(&m_reading);
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    // metadata
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    addDataRate(130, 130);
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    addDataRate(1, 130); // TODO: this is for testing only
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    addOutputRange(0, 9, 1);
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    setDescription(QLatin1String("Measures either single or double taps and gives tap direction"));
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}
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void maemo6tapsensor::start(){
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    maemo6sensorbase::start();
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    QVariant v = sensor()->property("returnDoubleTapEvents");
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    m_isDoubleTapSensor =  v.isValid() && v.toBool()? true: false;
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    // Set tap type (single/double)
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    m_reading.setDoubleTap(m_isDoubleTapSensor);
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}
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void maemo6tapsensor::slotDataAvailable(const Tap& data)
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{
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    if (data.type() == TapData::DoubleTap){
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        if (!m_isDoubleTapSensor) return;
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    }
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    else if (m_isDoubleTapSensor) return;
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    // Set tap direction
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    QTapReading::TapDirection o;
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    switch (data.direction()) {
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        case TapData::X:         o = QTapReading::X;         break;
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        case TapData::Y:         o = QTapReading::Y;         break;
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        case TapData::Z:         o = QTapReading::Z;         break;
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        case TapData::LeftRight: o = QTapReading::X_Pos;     break;
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        case TapData::RightLeft: o = QTapReading::X_Neg;     break;
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        case TapData::TopBottom: o = QTapReading::Z_Neg;     break;
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        case TapData::BottomTop: o = QTapReading::Z_Pos;     break;
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        case TapData::FaceBack:  o = QTapReading::Y_Pos;     break;
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        case TapData::BackFace:  o = QTapReading::Y_Neg;     break;
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        default:                 o = QTapReading::Undefined;
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    }
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    m_reading.setTapDirection(o);
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    m_reading.setTimestamp(data.tapData().timestamp_);
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    newReadingAvailable();
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}