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** This file is part of the Qt Mobility Components.

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#include <QtCore>

#include <qtapsensor.h>

QTM_USE_NAMESPACE

class TapSensorFilter : public QTapFilter

{

public:

    qtimestamp stamp;

    bool filter(QTapReading *reading)

    {

        int diff = ( reading->timestamp() - stamp );

        stamp = reading->timestamp();

        QString output;

        switch (reading->tapDirection()) {

            case QTapReading::X:         output = "X";         break;

            case QTapReading::Y:         output = "Y";         break;

            case QTapReading::Z:         output = "Z";         break;

            case QTapReading::X_Pos:     output = "X pos";     break;

            case QTapReading::Y_Pos:     output = "Y pos";     break;

            case QTapReading::Z_Pos:     output = "Z pos";     break;

            case QTapReading::X_Neg:     output = "X neg";     break;

            case QTapReading::Y_Neg:     output = "Y neg";     break;

            case QTapReading::Z_Neg:     output = "Z neg";     break;

            case QTapReading::Undefined: output = "Undefined"; break;

            default: output = "Invalid enum value";

        }

        QTextStream out(stdout);

        out << "Tap: ";

        if(reading->isDoubleTap())

            out << "Double ";

        else

            out << "Single ";

        out << QString(" (%1 ms since last, %2 Hz)").arg(diff / 1000, 5).arg( 1000000.0 / diff, 3, 'f', 1) << endl;

        return false; // don't store the reading in the sensor

    }

};

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();

    QTapSensor doublesensor;

    if (rate_val > 0) {

        doublesensor.setDataRate(rate_val);

    }

    TapSensorFilter filter;

    doublesensor.addFilter(&filter);

    doublesensor.start();

    if (!doublesensor.isActive()) {

        qWarning("Tapsensor (double) didn't start!");

        return 1;

    }

    QTapSensor singlesensor;

    if (rate_val > 0) {

        singlesensor.setDataRate(rate_val);

    }

    singlesensor.addFilter(&filter);

    singlesensor.start();

    if (!singlesensor.isActive()) {

        qWarning("Tapsensor (single) didn't start!");

        return 1;

    }

    return app.exec();

}