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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore>
#include <qgyroscope.h>
QTM_USE_NAMESPACE
class GyroscopeFilter : public QGyroscopeFilter
{
public:
bool filter(QGyroscopeReading *reading)
{
int diff = ( reading->timestamp() - stamp );
stamp = reading->timestamp();
QTextStream out(stdout);
out << QString("Angular velocity: %1 x").arg(reading->x(), 5, 'f', 1)
<< QString(" %1 y").arg(reading->y(), 5, 'f', 1)
<< QString(" %1 z deg/s").arg(reading->z(), 5, 'f', 1)
<< QString(" (%1 ms since last, %2 Hz)").arg(diff / 1000, 4).arg( 1000000.0 / diff, 5, 'f', 1) << endl;
return false; // don't store the reading in the sensor
}
private:
qtimestamp stamp;
};
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
QStringList args = app.arguments();
int rate_place = args.indexOf("-r");
int rate_val = 0;
if (rate_place != -1)
rate_val = args.at(rate_place + 1).toInt();
QGyroscope sensor;
sensor.connectToBackend();
if (rate_val > 0) {
sensor.setDataRate(rate_val);
}
GyroscopeFilter filter;
sensor.addFilter(&filter);
sensor.start();
if (!sensor.isActive()) {
qWarning("Gyroscopesensor didn't start!");
return 1;
}
return app.exec();
}
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