src/location/qgeopositioninfosource_maemo.cpp
changeset 0 876b1a06bc25
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/location/qgeopositioninfosource_maemo.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,202 @@
+/****************************************************************************
+**
+** 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 "qgeopositioninfosource_maemo_p.h"
+#include <iostream>
+#include <QDateTime>
+
+using namespace std;
+
+QTM_BEGIN_NAMESPACE
+
+QGeoPositionInfoSourceMaemo::QGeoPositionInfoSourceMaemo(QObject *parent): QGeoPositionInfoSource(parent)
+{
+    requestTimer = new QTimer(this);
+    QObject::connect(requestTimer, SIGNAL(timeout()), this, SLOT(requestTimerExpired()));
+    locationOngoing = false;
+}
+
+
+int QGeoPositionInfoSourceMaemo::init()
+{
+    dbusComm = new DBusComm(this);
+    int status = dbusComm->init();
+
+    if (status == 0) {
+        QObject::connect(dbusComm, SIGNAL(receivedPositionUpdate(const QGeoPositionInfo &)),
+                         this, SLOT(newPositionUpdate(const QGeoPositionInfo &)));
+        QObject::connect(dbusComm, SIGNAL(serviceConnected()),
+                         this, SLOT(onServiceConnect()));
+        QObject::connect(dbusComm, SIGNAL(serviceDisconnected()),
+                         this, SLOT(onServiceDisconnect()));
+    }
+    return status;
+}
+
+void QGeoPositionInfoSourceMaemo::onServiceDisconnect()
+{
+    //
+}
+
+
+void QGeoPositionInfoSourceMaemo::onServiceConnect()
+{
+    DBusComm::Command command = (DBusComm::Command)( int(DBusComm::CommandStart) 
+                                                     | int(DBusComm::CommandSetInterval) 
+                                                     | int(DBusComm::CommandSetMethods) );
+    int interval = QGeoPositionInfoSource::updateInterval();
+    QGeoPositionInfoSource::PositioningMethods method;
+    method = QGeoPositionInfoSource::preferredPositioningMethods();
+
+    if (locationOngoing) {
+        dbusComm->sendConfigRequest(command, method, interval);
+    }
+}
+
+void QGeoPositionInfoSourceMaemo::newPositionUpdate(const QGeoPositionInfo &update)
+{
+    if(update.isValid()) {
+        emit positionUpdated(update);
+        if ( requestTimer->isActive() )
+            shutdownRequestSession();
+    } else {
+        if ( !requestTimer->isActive() )
+            emit updateTimeout();
+    }
+}
+
+
+QGeoPositionInfo QGeoPositionInfoSourceMaemo::lastKnownPosition(bool fromSatellitePositioningMethodsOnly) const
+{
+    QGeoPositionInfo update = dbusComm->requestLastKnownPosition(fromSatellitePositioningMethodsOnly); 
+
+    return update;
+}
+
+
+QGeoPositionInfoSource::PositioningMethods QGeoPositionInfoSourceMaemo::supportedPositioningMethods() const
+{
+    return dbusComm->availableMethods();
+}
+
+
+void QGeoPositionInfoSourceMaemo::setUpdateInterval(int msec)
+{
+    qint32 min = dbusComm->minimumInterval();
+    msec = (msec < min) ? min : msec;
+    QGeoPositionInfoSource::setUpdateInterval(msec);
+
+    dbusComm->sendConfigRequest(dbusComm->CommandSetInterval, 0, msec);
+}
+
+
+void QGeoPositionInfoSourceMaemo::setPreferredPositioningMethods(PositioningMethods sources)
+{
+    QGeoPositionInfoSource::setPreferredPositioningMethods(sources);
+    dbusComm->sendConfigRequest(dbusComm->CommandSetMethods, sources, 0);
+}
+
+
+int QGeoPositionInfoSourceMaemo::minimumUpdateInterval() const
+{
+    return dbusComm->minimumInterval();
+}
+
+
+void QGeoPositionInfoSourceMaemo::startUpdates()
+{
+    locationOngoing = true;
+    if ( !requestTimer->isActive() )
+        dbusComm->sendConfigRequest(DBusComm::CommandStart, 0, 0);
+}
+
+
+void QGeoPositionInfoSourceMaemo::stopUpdates()
+{
+    locationOngoing = false;
+    if ( !requestTimer->isActive() )
+        dbusComm->sendConfigRequest(dbusComm->CommandStop, 0, 0);
+}
+
+
+void QGeoPositionInfoSourceMaemo::requestUpdate(int timeout)
+{
+    if ( QGeoPositionInfoSource::updateInterval() != 
+         dbusComm->minimumInterval() )
+        dbusComm->sendConfigRequest(dbusComm->CommandSetInterval, 0, 
+                                    dbusComm->minimumInterval());
+
+    if ( !QGeoPositionInfoSource::preferredPositioningMethods().testFlag(QGeoPositionInfoSource::AllPositioningMethods) )
+        dbusComm->sendConfigRequest(dbusComm->CommandSetMethods, 
+                                    QGeoPositionInfoSource::AllPositioningMethods, 0);
+
+    if ( !locationOngoing )
+        dbusComm->sendConfigRequest(dbusComm->CommandStart, 0, 0);
+
+    requestTimer->start(timeout);
+}
+
+void QGeoPositionInfoSourceMaemo::requestTimerExpired()
+{
+    emit updateTimeout();
+    shutdownRequestSession();
+}
+
+void QGeoPositionInfoSourceMaemo::shutdownRequestSession()
+{
+    requestTimer->stop();
+
+    if ( !locationOngoing )
+        dbusComm->sendConfigRequest(dbusComm->CommandStop, 0, 0);
+
+    if ( QGeoPositionInfoSource::updateInterval() !=
+         dbusComm->minimumInterval() )
+        dbusComm->sendConfigRequest(dbusComm->CommandSetInterval, 0,
+                                    QGeoPositionInfoSource::updateInterval());
+
+    if ( !QGeoPositionInfoSource::preferredPositioningMethods().testFlag(QGeoPositionInfoSource::AllPositioningMethods) )
+        dbusComm->sendConfigRequest(dbusComm->CommandSetMethods,
+                                    QGeoPositionInfoSource::preferredPositioningMethods(), 0);
+}
+
+#include "moc_qgeopositioninfosource_maemo_p.cpp"
+QTM_END_NAMESPACE
+