add new sensor gestures

Change-Id: Ided28e5d26af383b019d84ebb128c8ec6d6e3d34
Sanity-Review: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Lincoln Ramsay <lincoln.ramsay@nokia.com>

1 files changed, 132 insertions, 0 deletions

diff --git a/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.cpp b/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.cpp
new file mode 100644
index 00000000..a76c2c94
--- /dev/null
+++ b/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.cpp
@@ -0,0 +1,132 @@
+/****************************************************************************
+**
+** 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 "qhoversensorgesturerecognizer.h"
+QT_BEGIN_NAMESPACE
+
+QHoverSensorGestureRecognizer::QHoverSensorGestureRecognizer(QObject *parent) :
+    QSensorGestureRecognizer(parent),
+    hoverOk(0), lastLightReading(0), detecting(0)
+{
+}
+
+QHoverSensorGestureRecognizer::~QHoverSensorGestureRecognizer()
+{
+}
+
+void QHoverSensorGestureRecognizer::create()
+{
+    light = new QLightSensor(this);
+    light->connectToBackend();
+
+    timer = new QTimer(this);
+    connect(timer,SIGNAL(timeout()),this,SLOT(timeout()));
+    timer->setSingleShot(true);
+    timer->setInterval(1000);
+
+    timer2 = new QTimer(this);
+    connect(timer2,SIGNAL(timeout()),this,SLOT(timeout2()));
+    timer2->setSingleShot(true);
+    timer2->setInterval(3000);
+}
+
+QString QHoverSensorGestureRecognizer::id() const
+{
+    return QString("QtSensors.hover");
+}
+
+bool QHoverSensorGestureRecognizer::start()
+{
+    connect(light,SIGNAL(readingChanged()), this,SLOT(lightChanged()));
+    light->start();
+    return light->isActive();
+}
+
+bool QHoverSensorGestureRecognizer::stop()
+{
+   light->stop();
+   disconnect(light,SIGNAL(readingChanged()),this,SLOT(lightChanged()));
+   return light->isActive();
+}
+
+bool QHoverSensorGestureRecognizer::isActive()
+{
+    return light->isActive();
+}
+
+void QHoverSensorGestureRecognizer::lightChanged()
+{
+    qreal lightReading = light->reading()->lux();
+
+    int difference = 100 - (lightReading/lastLightReading) * 100;
+
+    if (difference == 0) {
+        return;
+    }
+
+    if (!detecting && difference > 19) {
+//        if (lightReading < lastLightReading ) {
+        detecting = true;
+        timer->start();
+        timer2->start();
+    } else if (hoverOk && detecting && difference < -24) {
+        // went light again after 1 seconds
+//            qDebug() << "hover";
+            Q_EMIT hover();
+            Q_EMIT detected("hover");
+            hoverOk = false;
+            detecting = false;
+    }
+    lastLightReading = lightReading;
+}
+
+void QHoverSensorGestureRecognizer::timeout()
+{
+    hoverOk = true;
+}
+
+
+void QHoverSensorGestureRecognizer::timeout2()
+{
+    detecting = false;
+}
+QT_END_NAMESPACE