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#include <QtCore>
#include <qmagnetometer.h>

QTM_USE_NAMESPACE

class MagGeoFilter : public QMagnetometerFilter
{
public:
    qtimestamp stamp;
    bool filter(QMagnetometerReading *reading)
    {
        int diff = ( reading->timestamp() - stamp );
        stamp = reading->timestamp();
        QTextStream out(stdout);
        out << QString("Geomagnetic flux density: %1 x").arg(reading->x() * 1000000, 6, 'f', 1)
            << QString(" %1 y").arg(reading->y() * 1000000, 6, 'f', 1)
            << QString(" %1 z uT").arg(reading->z() * 1000000, 6, 'f', 1)
            << QString(" calibration: %1").arg(reading->calibrationLevel(), 3, 'f', 1)
            << QString(" (%1 ms since last, %2 Hz)").arg(diff / 1000, 4).arg( 1000000.0 / diff, 4, 'f', 1) << endl;
        return false;
    }
};

class MagRawFilter : public QMagnetometerFilter
{
public:
    qtimestamp stamp;
    bool filter(QMagnetometerReading *reading)
    {
        int diff = ( reading->timestamp() - stamp );
        stamp = reading->timestamp();
        QTextStream out(stdout);
        out << QString("Raw magnetic flux density: %1 x").arg(reading->x() * 1000000, 6, 'f', 1)
            << QString(" %1 y").arg(reading->y() * 1000000, 6, 'f', 1)
            << QString(" %1 z uT").arg(reading->z() * 1000000, 6, 'f', 1)
            << QString(" calibration: %1").arg(reading->calibrationLevel(), 3, 'f', 1)
            << QString(" (%1 ms since last, %2 Hz)").arg(diff / 1000, 4).arg( 1000000.0 / diff, 4, 'f', 1) << endl;
        return false;
    }
};

int main(int argc, char **argv)
{
    QCoreApplication app(argc, argv);


    QMagnetometer geosensor;
    if (!geosensor.connectToBackend()) {
        qWarning("No magnetometer available!");
        return 1;
    }
    MagGeoFilter geofilter;
    geosensor.setProperty("returnGeoValues", true);
    geosensor.addFilter(&geofilter);
    geosensor.start();

/*
    QMagnetometer rawsensor;
    if (!rawsensor.connectToBackend()) {
        qWarning("No magnetometer available!");
        return 1;
    }
    MagRawFilter rawfilter;
    rawsensor.addFilter(&rawfilter);
    rawsensor.start();
*/
    return app.exec();
}