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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the Qt Mobility Components.

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     9 ** $QT_BEGIN_LICENSE:LGPL$

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    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

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    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

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    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include "qgeoareamonitor_maemo_p.h"

    43 

    44 QTM_BEGIN_NAMESPACE

    45         

    46 #define UPDATE_INTERVAL_5S  5000

    47 #define TO_METERS           1000

    48         

    49 QGeoAreaMonitorMaemo::QGeoAreaMonitorMaemo(QObject *parent) : QGeoAreaMonitor(parent) 

    50 {

    51     insideArea = false;

    52     location = QGeoPositionInfoSource::createDefaultSource(this);

    53     if(location) {

    54         location->setUpdateInterval(UPDATE_INTERVAL_5S);

    55         connect(location, SIGNAL(positionUpdated(QGeoPositionInfo)),

    56                 this, SLOT(positionUpdated(QGeoPositionInfo)));

    57         location->startUpdates();

    58     }

    59 }

    60 

    61 QGeoAreaMonitorMaemo::~QGeoAreaMonitorMaemo()

    62 {

    63     if(location)

    64         location->stopUpdates();

    65     

    66 }

    67 

    68 void QGeoAreaMonitorMaemo::setCenter(const QGeoCoordinate& coordinate) 

    69 {

    70     if (coordinate.isValid())

    71         QGeoAreaMonitor::setCenter(coordinate);

    72 }

    73 

    74 void QGeoAreaMonitorMaemo::setRadius(qreal radius) 

    75 {

    76     QGeoAreaMonitor::setRadius(radius);

    77 }

    78 

    79 void QGeoAreaMonitorMaemo::positionUpdated(const QGeoPositionInfo &info) 

    80 {

    81     double distance = 

    82             location_distance_between(info.coordinate().latitude(),

    83                                       info.coordinate().longitude(),

    84                                       QGeoAreaMonitor::center().latitude(),

    85                                       QGeoAreaMonitor::center().longitude());

    86     

    87     distance = distance * TO_METERS;

    88     

    89     if (distance <= QGeoAreaMonitor::radius()) {

    90         if(!insideArea)

    91             emit areaEntered(info);

    92         insideArea = true;

    93     } else if (insideArea) {

    94         emit areaExited(info);

    95         insideArea = false;

    96     }

    97 }

    98 

    99 #include "moc_qgeoareamonitor_maemo_p.cpp"

   100 QTM_END_NAMESPACE