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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:FDL$
** GNU Free Documentation License
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of
** this file.
**
** 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.
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\group qml-sensors
\title QML Sensors API Plugin
QML Support for the QtMobility Project Sensors API.
*/
/*!
\page qml-sensors.html
\title Sensors QML Plugin
\brief A QML plugin for the QtMobility Project Sensors API.
\section1 Overview
The QML Sensors Plugin provides an easy to use interface to the Sensors API.
It enables us to receive sensor events and to read current values from
sensors.
The plugin contains many sensor types and access functions to read values
from them. As an example consider the orientation sensor. The orientation
example simply displays text on-screen to show the current orientation.
The QML code that reads the value is quite simple. Here we see a QML component
\e orientation declared which is an \l OrientationSensor element. First
the sensor is started by setting the \l {Sensor::active}{active} property
to \e true. The element receives a signal when the reading changes and it
is picked up by the \e onReadingChanged slot. Now the
\l {OrientationSensor::reading}{reading} property of this element can be
used to extract the current orientation so that it can be compared against
the defined values of various orientations in the \l OrientationReading
element.
\qml
OrientationSensor {
id: orientation
active: true
onReadingChanged: {
if (reading.orientation == OrientationReading.FaceUp)
content.state = "FaceUp";
// ... more tests for different orientations ...
}
}
\endqml
Other sensors can be treated in a similar manner. For example, the \l Compass
sensor could have almost identical coding
\qml
Compass {
id: compass
active: true
onReadingChanged: {
compassHeading.text = reading.azimuth;
// ...
}
}
\endqml
\section1 QML Elements
\annotatedlist qml-sensors_type
\annotatedlist qml-sensors_reading
*/
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