diff -r 000000000000 -r 876b1a06bc25 examples/sensors/show_tap/main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/examples/sensors/show_tap/main.cpp Wed Aug 25 15:49:42 2010 +0300 @@ -0,0 +1,112 @@ +/**************************************************************************** +** +** 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 +#include + +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(); +}