qtmobility/src/location/qgeoareamonitor_maemo.cpp
changeset 4 90517678cc4f
child 11 06b8e2af4411
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/src/location/qgeoareamonitor_maemo.cpp	Mon May 03 13:18:40 2010 +0300
@@ -0,0 +1,100 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 "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