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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtSensors module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include "qpickupsensorgesturerecognizer.h"
+QT_BEGIN_NAMESPACE
+
+QPickupSensorGestureRecognizer::QPickupSensorGestureRecognizer(QObject *parent) :
+ QSensorGestureRecognizer(parent),atRest(1),okToSignal(1)
+{
+}
+
+QPickupSensorGestureRecognizer::~QPickupSensorGestureRecognizer()
+{
+}
+
+void QPickupSensorGestureRecognizer::create()
+{
+ accel = new QAccelerometer(this);
+ accel->connectToBackend();
+ timer = new QTimer(this);
+
+ connect(timer,SIGNAL(timeout()),this,SLOT(timeout()));
+ timer->setSingleShot(true);
+ timer->setInterval(500);
+
+}
+
+QString QPickupSensorGestureRecognizer::id() const
+{
+ return QString("QtSensors.pickup");
+}
+
+bool QPickupSensorGestureRecognizer::start()
+{
+ connect(accel,SIGNAL(readingChanged()),this,SLOT(accelChanged()));
+ accel->start();
+
+ active = accel->isActive();
+ return active;
+}
+
+bool QPickupSensorGestureRecognizer::stop()
+{
+ accel->stop();
+ active = accel->isActive();
+ disconnect(accel,SIGNAL(readingChanged()),this,SLOT(accelChanged()));
+ return !active;
+}
+
+bool QPickupSensorGestureRecognizer::isActive()
+{
+ return active;
+}
+
+#define kFilteringFactor 0.1
+
+void QPickupSensorGestureRecognizer::accelChanged()
+{
+ qreal x = accel->reading()->x();
+ qreal xdiff = pXaxis - x;
+ qreal y = accel->reading()->y();
+ qreal ydiff = pYaxis - y;
+ qreal z = accel->reading()->z();
+ qreal zdiff = pZaxis - z;
+
+ if (xdiff < 0.3 && ydiff < .3 && zdiff < .3) {
+ atRest = true;
+ } else {
+ atRest = false;
+ okToSignal = true;
+ }
+
+ if (atRest && okToSignal && (y > 5.0 && y < 8.9) && (z > 5.0 && z < 7.9)) {
+ if (!timer->isActive()) {
+ timer->start();
+ }
+ }
+
+ // initial at ~0, z = 9.8
+ // at 'focus' when y == 6 to 8 && z == 5 to 7
+
+ pXaxis = x;
+ pYaxis = y;
+ pZaxis = z;
+}
+
+void QPickupSensorGestureRecognizer::timeout()
+{
+ qreal x = accel->reading()->x();
+ qreal y = accel->reading()->y();
+ qreal z = accel->reading()->z();
+
+ if (atRest && (y > 5.0 && y < 8.9) && (z > 5.0 && z < 7.9)) {
+ Q_EMIT pickup();
+ Q_EMIT detected("pickup");
+
+ okToSignal = false;
+ }
+}
+
+QT_END_NAMESPACE