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     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

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

     8 **

     9 ** $QT_BEGIN_LICENSE:BSD$

    10 ** You may use this file under the terms of the BSD license as follows:

    11 **

    12 ** "Redistribution and use in source and binary forms, with or without

    13 ** modification, are permitted provided that the following conditions are

    14 ** met:

    15 **   * Redistributions of source code must retain the above copyright

    16 **     notice, this list of conditions and the following disclaimer.

    17 **   * Redistributions in binary form must reproduce the above copyright

    18 **     notice, this list of conditions and the following disclaimer in

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    20 **     distribution.

    21 **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor

    22 **     the names of its contributors may be used to endorse or promote

    23 **     products derived from this software without specific prior written

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    25 **

    26 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    27 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

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    36 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."

    37 ** $QT_END_LICENSE$

    38 **

    39 ****************************************************************************/

    40 

    41 #include <QtCore>

    42 #include <qorientationsensor.h>

    43 

    44 QTM_USE_NAMESPACE

    45 

    46 class OrientationSensorFilter : public QOrientationFilter

    47 {

    48 public:

    49     qtimestamp stamp;

    50     bool filter(QOrientationReading *reading)

    51     {

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

    53         stamp = reading->timestamp();

    54         QString output;

    55         switch (reading->orientation()) {

    56             case QOrientationReading::TopUp:     output = "Top up   "; break;

    57             case QOrientationReading::TopDown:   output = "Top down "; break;

    58             case QOrientationReading::LeftUp:    output = "Left up  "; break;

    59             case QOrientationReading::RightUp:   output = "Right up "; break;

    60             case QOrientationReading::FaceUp:    output = "Face up  "; break;

    61             case QOrientationReading::FaceDown:  output = "Face down"; break;

    62             case QOrientationReading::Undefined: output = "Undefined"; break;

    63             default: output = "Invalid enum value";

    64         }

    65         QTextStream out(stdout);

    66         out << "Orientation: " << output

    67             << QString(" (%1 ms since last, %2 Hz)").arg(diff / 1000, 5).arg( 1000000.0 / diff, 4, 'f', 1) << endl;

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

    69     }

    70 };

    71 

    72 int main(int argc, char **argv)

    73 {

    74     QCoreApplication app(argc, argv);

    75 

    76     QOrientationSensor sensor;

    77     if (!sensor.connectToBackend()) {

    78         qWarning("No orientation sensor available!");

    79         return 1;

    80     }

    81     OrientationSensorFilter filter;

    82     sensor.addFilter(&filter);

    83     sensor.start();

    84 

    85     return app.exec();

    86 }