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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 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 "qrotationsensor.h"
+#include "qrotationsensor_p.h"
+
+QT_BEGIN_NAMESPACE
+QTM_BEGIN_NAMESPACE
+
+IMPLEMENT_READING(QRotationReading)
+
+/*!
+    \class QRotationReading
+    \ingroup sensors_reading
+    \inmodule QtSensors
+    \since 1.0
+
+    \brief The QRotationReading class represents one reading from the
+           rotation sensor.
+
+    \section2 QRotationReading Units
+
+    The rotation reading contains 3 angles, measured in degrees that define
+    the orientation of the device in three-dimensional space. These angles
+    are similar to yaw, pitch and roll but are defined using only right hand
+    rotation with axes as defined by the right hand cartesian coordinate system.
+
+    \image sensors-rotation.jpg
+
+    The three angles are applied to the device in the following order.
+
+    \list
+    \o Right-handed rotation z (-180, 180]. Starting from the y-axis and
+     incrementing in the counter-clockwise direction.
+    \o Right-handed rotation x [-90, 90]. Starting from the new
+     (once-rotated) y-axis and incrementing towards the z-axis.
+    \o Right-handed rotation y (-180, 180]. Starting from the new
+     (twice-rotated) z-axis and incrementing towards the x-axis.
+    \endlist
+
+    Here is a visualization showing the order in which angles are applied.
+
+    \image sensors-rotation-anim.gif
+
+    The 0 point for the z angle is defined as a fixed, external entity and
+    is device-specific. While magnetic North is typically used as this
+    reference point it may not be. Do not attempt to compare values
+    for the z angle between devices or even on the same device if it has
+    moved a significant distance.
+
+    If the device cannot detect a fixed, external entity the z angle will
+    always be 0 and the QRotationSensor::hasZ property will be set to false.
+
+    The 0 point for the x and y angles are defined as when the x and y axes
+    of the device are oriented towards the horizon. Here is an example of
+    how the x value will change with device movement.
+
+    \image sensors-rotation2.jpg
+
+    Here is an example of how the y value will change with device movement.
+
+    \image sensors-rotation3.jpg
+
+    Note that when x is 90 or -90, values for z and y achieve rotation around
+    the same axis (due to the order of operations). In this case the y
+    rotation will be 0.
+*/
+
+/*!
+    \property QRotationReading::x
+    \brief the rotation around the x axis.
+
+    Measured as degrees.
+    \sa {QRotationReading Units}
+*/
+
+qreal QRotationReading::x() const
+{
+    return d->x;
+}
+
+/*!
+    Sets the rotation around the x axis to \a x.
+*/
+void QRotationReading::setX(qreal x)
+{
+    d->x = x;
+}
+
+/*!
+    \property QRotationReading::y
+    \brief the rotation around the y axis.
+
+    Measured as degrees.
+    \sa {QRotationReading Units}
+*/
+
+qreal QRotationReading::y() const
+{
+    return d->y;
+}
+
+/*!
+    Sets the rotation around the y axis to \a y.
+*/
+void QRotationReading::setY(qreal y)
+{
+    d->y = y;
+}
+
+/*!
+    \property QRotationReading::z
+    \brief the rotation around the z axis.
+
+    Measured as degrees.
+    \sa {QRotationReading Units}
+*/
+
+qreal QRotationReading::z() const
+{
+    return d->z;
+}
+
+/*!
+    Sets the rotation around the z axis to \a z.
+*/
+void QRotationReading::setZ(qreal z)
+{
+    d->z = z;
+}
+
+// =====================================================================
+
+/*!
+    \class QRotationFilter
+    \ingroup sensors_filter
+    \inmodule QtSensors
+
+    \brief The QRotationFilter class is a convenience wrapper around QSensorFilter.
+
+    The only difference is that the filter() method features a pointer to QRotationReading
+    instead of QSensorReading.
+*/
+
+/*!
+    \fn QRotationFilter::filter(QRotationReading *reading)
+
+    Called when \a reading changes. Returns false to prevent the reading from propagating.
+
+    \sa QSensorFilter::filter()
+*/
+
+char const * const QRotationSensor::type("QRotationSensor");
+
+/*!
+    \class QRotationSensor
+    \ingroup sensors_type
+    \inmodule QtSensors
+
+    \brief The QRotationSensor class is a convenience wrapper around QSensor.
+
+    The only behavioural difference is that this class sets the type properly.
+
+    This class also features a reading() function that returns a QRotationReading instead of a QSensorReading.
+
+    For details about how the sensor works, see \l QRotationReading.
+
+    \sa QRotationReading
+*/
+
+/*!
+    \fn QRotationSensor::QRotationSensor(QObject *parent)
+
+    Construct the sensor as a child of \a parent.
+*/
+
+/*!
+    \fn QRotationSensor::~QRotationSensor()
+
+    Destroy the sensor. Stops the sensor if it has not already been stopped.
+*/
+
+/*!
+    \fn QRotationSensor::reading() const
+
+    Returns the reading class for this sensor.
+
+    \sa QSensor::reading()
+*/
+
+/*!
+    \property QRotationSensor::hasZ
+    \brief a value indicating if the z angle is available.
+
+    Returns true if z is available.
+    Returns false if z is not available.
+*/
+
+#include "moc_qrotationsensor.cpp"
+QTM_END_NAMESPACE
+QT_END_NAMESPACE
+