diff options
Diffstat (limited to 'plugins/sensorgestures/qtsensors/qwhipsensorgesturerecognizer.cpp')
| -rw-r--r-- | plugins/sensorgestures/qtsensors/qwhipsensorgesturerecognizer.cpp | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/plugins/sensorgestures/qtsensors/qwhipsensorgesturerecognizer.cpp b/plugins/sensorgestures/qtsensors/qwhipsensorgesturerecognizer.cpp new file mode 100644 index 0000000000..37f29097a7 --- /dev/null +++ b/plugins/sensorgestures/qtsensors/qwhipsensorgesturerecognizer.cpp @@ -0,0 +1,233 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include "qwhipsensorgesturerecognizer.h" +#include "qtsensorgesturesensorhandler.h" + +#include <QtCore/qmath.h> + +QTM_BEGIN_NAMESPACE + +QWhipSensorGestureRecognizer::QWhipSensorGestureRecognizer(QObject *parent) + : QSensorGestureRecognizer(parent), + orientationReading(0), + accelRange(0), + active(0), + lastX(0), + lastY(0), + lastZ(0), + detecting(0), + whipOk(0){ +} + +QWhipSensorGestureRecognizer::~QWhipSensorGestureRecognizer() +{ +} + +void QWhipSensorGestureRecognizer::create() +{ + timer = new QTimer(this); + connect(timer,SIGNAL(timeout()),this,SLOT(timeout())); + timer->setSingleShot(true); + timer->setInterval(850); +} + +QString QWhipSensorGestureRecognizer::id() const +{ + return QString("QtSensors.whip"); +} + +bool QWhipSensorGestureRecognizer::start() +{ + if (QtSensorGestureSensorHandler::instance()->startSensor(QtSensorGestureSensorHandler::Accel)) { + if (QtSensorGestureSensorHandler::instance()->startSensor(QtSensorGestureSensorHandler::Orientation)) { + accelRange = QtSensorGestureSensorHandler::instance()->accelRange; + active = true; + connect(QtSensorGestureSensorHandler::instance(),SIGNAL(orientationReadingChanged(QOrientationReading *)), + this,SLOT(orientationReadingChanged(QOrientationReading *))); + + connect(QtSensorGestureSensorHandler::instance(),SIGNAL(accelReadingChanged(QAccelerometerReading *)), + this,SLOT(accelChanged(QAccelerometerReading *))); + } else { + QtSensorGestureSensorHandler::instance()->stopSensor(QtSensorGestureSensorHandler::Accel); + active = false; + } + } else { + active = false; + } + return active; +} + +bool QWhipSensorGestureRecognizer::stop() +{ + QtSensorGestureSensorHandler::instance()->stopSensor(QtSensorGestureSensorHandler::Accel); + QtSensorGestureSensorHandler::instance()->stopSensor(QtSensorGestureSensorHandler::Orientation); + disconnect(QtSensorGestureSensorHandler::instance(),SIGNAL(orientationReadingChanged(QOrientationReading *)), + this,SLOT(orientationReadingChanged(QOrientationReading *))); + + disconnect(QtSensorGestureSensorHandler::instance(),SIGNAL(accelReadingChanged(QAccelerometerReading *)), + this,SLOT(accelChanged(QAccelerometerReading *))); + active = false; + timer->stop(); + + return active; +} + +bool QWhipSensorGestureRecognizer::isActive() +{ + return active; +} + +void QWhipSensorGestureRecognizer::orientationReadingChanged(QOrientationReading *reading) +{ + orientationReading = reading; +} + +#define WHIP_FACTOR -11.0 +#define WHIP_WIGGLE_FACTOR 0.35 + +void QWhipSensorGestureRecognizer::accelChanged(QAccelerometerReading *reading) +{ + const qreal x = reading->x(); + const qreal y = reading->y(); + qreal z = reading->z(); + + if (zList.count() > 4) + zList.removeLast(); + + qreal averageZ = 0; + Q_FOREACH (qreal az, zList) { + averageZ += az; + } +// averageZ += z; + averageZ /= zList.count(); + + zList.insert(0,z); + + if (orientationReading == 0) + return; + //// very hacky + if (orientationReading->orientation() == QOrientationReading::FaceUp) { + z = z - 9.8; + } + + const qreal diffX = lastX - x; + const qreal diffY = lastY - y; + + if (detecting && whipMap.count() > 5 && whipMap.at(5) == true) { + checkForWhip(); + } + + if (whipMap.count() > 5) + whipMap.removeLast(); + + if (negativeList.count() > 5) + negativeList.removeLast(); + + + if (z < WHIP_FACTOR + && qAbs(diffX) > -(accelRange * .1285)//-5.0115 + && qAbs(lastX) < 7 + && qAbs(x) < 7) { + whipMap.insert(0,true); + if (!detecting && !timer->isActive()) { + timer->start(); + detecting = true; + } + } else { + whipMap.insert(0,false); + } + + // check if shaking + if ((((x < 0 && lastX > 0) || (x > 0 && lastX < 0)) + && qAbs(diffX) > (accelRange * 0.7)) //27.3 + || (((y < 0 && lastY > 0) || (y > 0 && lastY < 0)) + && qAbs(diffY) > (accelRange * 0.7))) { + negativeList.insert(0,true); + } else { + negativeList.insert(0,false); + } + + lastX = x; + lastY = y; + lastZ = z; +} + +void QWhipSensorGestureRecognizer::timeout() +{ + detecting = false; +} + + +void QWhipSensorGestureRecognizer::checkForWhip() +{ + whipOk = false; + + int check = 0; + Q_FOREACH (qreal az, zList) { + if (az < -10) + check++; + } + if (check >= 4) + whipOk = true; + else + return; + if (whipOk) { + bool ok = true; + for (int i = 0; i < negativeList.count() - 1; i++) { + if (negativeList.at(i)) { + ok = false; + } + } + if (ok) { + Q_EMIT whip(); + Q_EMIT detected("whip"); + } + detecting = false; + whipMap.clear(); + timer->stop(); + } +} + +#include "moc_qwhipsensorgesturerecognizer.cpp" + +QTM_END_NAMESPACE |