/****************************************************************************
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****************************************************************************/

#include "qgeoareamonitor_maemo_p.h"

QTM_BEGIN_NAMESPACE
        
#define UPDATE_INTERVAL_5S  5000
#define TO_METERS           1000
        
QGeoAreaMonitorMaemo::QGeoAreaMonitorMaemo(QObject *parent) : QGeoAreaMonitor(parent) 
{
    insideArea = false;
    location = QGeoPositionInfoSource::createDefaultSource(this);
    if(location) {
        location->setUpdateInterval(UPDATE_INTERVAL_5S);
        connect(location, SIGNAL(positionUpdated(QGeoPositionInfo)),
                this, SLOT(positionUpdated(QGeoPositionInfo)));
        location->startUpdates();
    }
}

QGeoAreaMonitorMaemo::~QGeoAreaMonitorMaemo()
{
    if(location)
        location->stopUpdates();
    
}

void QGeoAreaMonitorMaemo::setCenter(const QGeoCoordinate& coordinate) 
{
    if (coordinate.isValid())
        QGeoAreaMonitor::setCenter(coordinate);
}

void QGeoAreaMonitorMaemo::setRadius(qreal radius) 
{
    QGeoAreaMonitor::setRadius(radius);
}

void QGeoAreaMonitorMaemo::positionUpdated(const QGeoPositionInfo &info) 
{
    double distance = 
            location_distance_between(info.coordinate().latitude(),
                                      info.coordinate().longitude(),
                                      QGeoAreaMonitor::center().latitude(),
                                      QGeoAreaMonitor::center().longitude());
    
    distance = distance * TO_METERS;
    
    if (distance <= QGeoAreaMonitor::radius()) {
        if(!insideArea)
            emit areaEntered(info);
        insideArea = true;
    } else if (insideArea) {
        emit areaExited(info);
        insideArea = false;
    }
}

#include "moc_qgeoareamonitor_maemo_p.cpp"
QTM_END_NAMESPACE
