/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
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** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
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** met:
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** notice, this list of conditions and the following disclaimer.
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** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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****************************************************************************/
#include <QtCore>
#include <qaccelerometer.h>
QTM_USE_NAMESPACE
class AccelerometerFilter : public QAccelerometerFilter
{
public:
qtimestamp stamp;
bool filter(QAccelerometerReading *reading)
{
int diff = ( reading->timestamp() - stamp );
stamp = reading->timestamp();
QTextStream out(stdout);
out << QString("Acceleration: %1 x").arg(reading->x(), 5, 'f', 1)
<< QString(" %1 y").arg(reading->y(), 5, 'f', 1)
<< QString(" %1 z m/s^2").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
}
};
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
QAccelerometer sensor;
if (!sensor.connectToBackend()) {
qWarning("No Accelerometer available!");
return 1;
}
AccelerometerFilter filter;
sensor.addFilter(&filter);
sensor.start();
return app.exec();
}