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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/
**
** This file is part of the QtLocation 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 "qdeclarativegeolocation_p.h"

QT_USE_NAMESPACE

/*!
    \qmlclass Location QDeclarativeGeoLocation
    \inqmlmodule QtLocation 5
    \ingroup qml-QtLocation5-positioning
    \since QtLocation 5.0

    \brief The Location element holds location data.

    Location elements represent a geographic "location", in a human sense. This
    consists of a specific Coordinate, as well as an Address and a
    BoundingBox. The BoundingBox delineates the limits of what geographic area
    is considered "part of" the location. For example, a Location representing
    a house would have the Coordinate set to the center of the house's block
    of land, the Address to its street address, and the BoundingBox would show
    roughly the limits of the block itself.

    The Location element is most commonly seen as the contents of a search
    model such as the GeocodeModel. When a GeocodeModel returns the list of
    locations found for a given query, it represents these as Locatio elements.

    \section2 Example Usage

    The following example shows a simple Location element being declared with
    a set \l{coordinate} and \l{address}.

    \code
    Address {
        id: houseAddress
        ...
    }

    Coordinate {
        id: coord
        latitude: -27.3; longitude: 153.1
    }

    Location {
        coordinate: coord
        address: houseAddress
    }
    \endcode

*/

QDeclarativeGeoLocation::QDeclarativeGeoLocation(QObject* parent)
    : QObject(parent), m_address(0), m_coordinate(0), m_boundingBox(0)

{
    setLocation(QGeoLocation());
}

QDeclarativeGeoLocation::QDeclarativeGeoLocation(const QGeoLocation &src, QObject *parent)
    : QObject(parent), m_address(0), m_coordinate(0), m_boundingBox(0)
{
    setLocation(src);
}

QDeclarativeGeoLocation::~QDeclarativeGeoLocation()
{
}

/*!
    \qmlproperty QGeoLocation QtLocation5::Location::location

    This property is used to provide an interface between C++ and QML code.  First a pointer to a
    Location object must be obtained from C++, then use the \l {QObject::property()}{property()} and
    \l {QObject::setProperty()}{setProperty()} functions to get and set the \c location property.

    The following gets the QGeoLocation representing this object from C++:

    \snippet snippets/cpp/cppqml.cpp Location get

    The following sets the properties of this object based on a QGeoLocation object from C++:

    \snippet snippets/cpp/cppqml.cpp Location set
*/
void QDeclarativeGeoLocation::setLocation(const QGeoLocation &src)
{
    if (m_address && m_address->parent() == this) {
        m_address->setAddress(src.address());
    } else if (!m_address || m_address->parent() != this) {
        m_address = new QDeclarativeGeoAddress(src.address(), this);
        emit addressChanged();
    }

    if (m_coordinate && m_coordinate->parent() == this) {
        m_coordinate->setCoordinate(src.coordinate());
    } else if (!m_coordinate || m_coordinate->parent() != this){
        m_coordinate = new QDeclarativeCoordinate(src.coordinate(), this);
        emit coordinateChanged();
    }

    if (m_boundingBox && m_boundingBox->parent() == this) {
        m_boundingBox->setBox(src.boundingBox());
    } else if (!m_boundingBox || m_boundingBox->parent() != this){
        m_boundingBox = new QDeclarativeGeoBoundingBox(src.boundingBox(), this);
        emit boundingBoxChanged();
    }
}

QGeoLocation QDeclarativeGeoLocation::location()
{
    QGeoLocation retValue;
    retValue.setAddress(m_address ? m_address->address() : QGeoAddress());
    retValue.setCoordinate(m_coordinate ? m_coordinate->coordinate() : QGeoCoordinate());
    retValue.setBoundingBox(m_boundingBox ? m_boundingBox->box() : QGeoBoundingBox());
    return retValue;
}

/*!
    \qmlproperty Address QtLocation5::Location::address

    This property holds address of the location.
*/
void QDeclarativeGeoLocation::setAddress(QDeclarativeGeoAddress *address)
{
    if (m_address == address)
        return;

    if (m_address && m_address->parent() == this)
        delete m_address;

    m_address = address;
    emit addressChanged();
}

QDeclarativeGeoAddress *QDeclarativeGeoLocation::address()
{
    return m_address;
}

/*!
    \qmlproperty Coordinate QtLocation5::Location::coordinate

    This property holds display coordinates of the location.

    Note: this property's changed() signal is currently emitted only if the
    whole element changes, not if only the contents of the element change.
*/
void QDeclarativeGeoLocation::setCoordinate(QDeclarativeCoordinate *coordinate)
{
    if (m_coordinate == coordinate)
        return;

    if (m_coordinate && m_coordinate->parent() == this)
        delete m_coordinate;

    m_coordinate = coordinate;
    emit coordinateChanged();
}

QDeclarativeCoordinate *QDeclarativeGeoLocation::coordinate()
{
    return m_coordinate;
}

/*!
    \qmlproperty BoundingBox QtLocation5::Location::boundingBox

    This property holds bounding box of area on map occupied by location.

    Note: this property's changed() signal is currently emitted only if the
    whole element changes, not if only the contents of the element change.
*/
void QDeclarativeGeoLocation::setBoundingBox(QDeclarativeGeoBoundingBox *boundingBox)
{
    if (m_boundingBox == boundingBox)
        return;

    if (m_boundingBox && m_boundingBox->parent() == this)
        delete m_boundingBox;

    m_boundingBox = boundingBox;
    emit boundingBoxChanged();
}

QDeclarativeGeoBoundingBox *QDeclarativeGeoLocation::boundingBox()
{
    return m_boundingBox;
}