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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdeclarativecoordinate_p.h"
+#include <qnumeric.h>
+#include "qdeclarative.h"
+
+QTM_BEGIN_NAMESPACE
+
+/*!
+ \qmlclass Coordinate
+
+ \brief The Coordinate element holds various positional data, such as \l
+ latitude, \l longitude and \l altitude.
+ \inherits QObject
+
+ \ingroup qml-location
+
+ The Coordinate element is part of the \bold{QtMobility.location 1.1} module.
+*/
+
+QDeclarativeCoordinate::QDeclarativeCoordinate(QObject* parent)
+ : QObject(parent) {}
+
+QDeclarativeCoordinate::QDeclarativeCoordinate(const QGeoCoordinate &coordinate,
+ QObject *parent)
+ : QObject(parent),
+ m_coordinate(coordinate) {}
+
+QDeclarativeCoordinate::~QDeclarativeCoordinate() {}
+
+void QDeclarativeCoordinate::setCoordinate(const QGeoCoordinate &coordinate)
+{
+ QGeoCoordinate previousCoordinate = m_coordinate;
+ m_coordinate = coordinate;
+
+ // Comparing two NotANumbers is false which is not wanted here
+ if (coordinate.altitude() != previousCoordinate.altitude() &&
+ !(qIsNaN(coordinate.altitude()) && qIsNaN(previousCoordinate.altitude()))) {
+ emit altitudeChanged(m_coordinate.altitude());
+ }
+ if (coordinate.latitude() != previousCoordinate.latitude() &&
+ !(qIsNaN(coordinate.latitude()) && qIsNaN(previousCoordinate.latitude()))) {
+ emit latitudeChanged(m_coordinate.latitude());
+ }
+ if (coordinate.longitude() != previousCoordinate.longitude() &&
+ !(qIsNaN(coordinate.longitude()) && qIsNaN(previousCoordinate.longitude()))) {
+ emit longitudeChanged(m_coordinate.longitude());
+ }
+}
+
+QGeoCoordinate QDeclarativeCoordinate::coordinate() const
+{
+ return m_coordinate;
+}
+
+/*!
+ \qmlproperty double Coordinate::altitude
+
+ This property holds the value of altitude (metres above sea level).
+ If the property has not been set, its default value is zero.
+
+*/
+
+void QDeclarativeCoordinate::setAltitude(double altitude)
+{
+ if (m_coordinate.altitude() != altitude) {
+ m_coordinate.setAltitude(altitude);
+ emit altitudeChanged(m_coordinate.altitude());
+ }
+}
+
+double QDeclarativeCoordinate::altitude() const
+{
+ return m_coordinate.altitude();
+}
+
+/*!
+ \qmlproperty double Coordinate::longitude
+
+ This property holds the longitude value of the geographical position
+ (decimal degrees). A positive longitude indicates the Eastern Hemisphere,
+ and a negative longitude indicates the Western Hemisphere
+ If the property has not been set, its default value is zero.
+*/
+
+void QDeclarativeCoordinate::setLongitude(double longitude)
+{
+ if (m_coordinate.longitude() != longitude) {
+ m_coordinate.setLongitude(longitude);
+ emit longitudeChanged(m_coordinate.longitude());
+ }
+}
+
+double QDeclarativeCoordinate::longitude() const
+{
+ return m_coordinate.longitude();
+}
+
+/*!
+ \qmlproperty double Coordinate::latitude
+
+ This property holds latitude value of the geographical position
+ (decimal degrees). A positive latitude indicates the Northern Hemisphere,
+ and a negative latitude indicates the Southern Hemisphere.
+ If the property has not been set, its default value is zero.
+*/
+
+void QDeclarativeCoordinate::setLatitude(double latitude)
+{
+ if (m_coordinate.latitude() != latitude) {
+ m_coordinate.setLatitude(latitude);
+ emit latitudeChanged(latitude);
+ }
+}
+
+double QDeclarativeCoordinate::latitude() const
+{
+ return m_coordinate.latitude();
+}
+
+/*!
+ \qmlmethod Coordinate::distanceTo(Coordinate)
+
+ Returns the distance (in meters) from this coordinate to the
+ coordinate specified by other. Altitude is not used in the calculation.
+
+ This calculation returns the great-circle distance between the two
+ coordinates, with an assumption that the Earth is spherical for the
+ purpose of this calculation.
+*/
+
+qreal QDeclarativeCoordinate::distanceTo(QObject* coordinate)
+{
+ QDeclarativeCoordinate* coord = static_cast<QDeclarativeCoordinate*>(coordinate);
+ return m_coordinate.distanceTo(coord->coordinate());
+}
+
+#include "moc_qdeclarativecoordinate_p.cpp"
+
+QTM_END_NAMESPACE
+