--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/src/location/liblocationwrapper.cpp Mon May 03 13:18:40 2010 +0300
@@ -0,0 +1,385 @@
+/****************************************************************************
+**
+** 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 "liblocationwrapper_p.h"
+
+using namespace std;
+
+QTM_BEGIN_NAMESPACE
+
+Q_GLOBAL_STATIC(LiblocationWrapper, LocationEngine)
+
+LiblocationWrapper *LiblocationWrapper::instance()
+{
+ return LocationEngine();
+}
+
+LiblocationWrapper::~LiblocationWrapper()
+{
+ if (locationDevice)
+ g_object_unref(locationDevice);
+ if (locationControl)
+ g_object_unref(locationControl);
+}
+
+bool LiblocationWrapper::inited()
+{
+ int retval = false;
+ if (!(locationState & LiblocationWrapper::Inited)) {
+ g_type_init();
+
+ locationControl = location_gpsd_control_get_default();
+
+ if (locationControl) {
+ g_object_set(G_OBJECT(locationControl),
+ "preferred-method", LOCATION_METHOD_USER_SELECTED,
+ "preferred-interval", LOCATION_INTERVAL_1S,
+ NULL);
+ locationDevice =
+ (LocationGPSDevice*)g_object_new(LOCATION_TYPE_GPS_DEVICE,
+ NULL);
+
+ if (locationDevice) {
+ errorHandlerId =
+ g_signal_connect(G_OBJECT(locationControl), "error-verbose",
+ G_CALLBACK(&locationError),
+ static_cast<void*>(this));
+ posChangedId =
+ g_signal_connect(G_OBJECT(locationDevice), "changed",
+ G_CALLBACK(&locationChanged),
+ static_cast<void*>(this));
+ locationState = LiblocationWrapper::Inited;
+ retval = true;
+ startcounter = 0;
+ }
+ }
+ } else {
+ retval = true;
+ }
+ return retval;
+}
+
+void LiblocationWrapper::locationError(LocationGPSDevice *device,
+ gint errorCode, gpointer data)
+{
+ Q_UNUSED(device);
+ QString locationError;
+
+ switch (errorCode) {
+ case LOCATION_ERROR_USER_REJECTED_DIALOG:
+ locationError = "User didn't enable requested methods";
+ break;
+ case LOCATION_ERROR_USER_REJECTED_SETTINGS:
+ locationError = "User changed settings, which disabled location.";
+ break;
+ case LOCATION_ERROR_BT_GPS_NOT_AVAILABLE:
+ locationError = "Problems with BT GPS";
+ break;
+ case LOCATION_ERROR_METHOD_NOT_ALLOWED_IN_OFFLINE_MODE:
+ locationError = "Requested method is not allowed in offline mode";
+ break;
+ case LOCATION_ERROR_SYSTEM:
+ locationError = "System error.";
+ break;
+ default:
+ locationError = "Unknown error.";
+ }
+
+ qDebug() << "Location error:" << locationError;
+
+ LiblocationWrapper *object;
+ object = (LiblocationWrapper *)data;
+ emit object->error();
+}
+
+void LiblocationWrapper::locationChanged(LocationGPSDevice *device,
+ gpointer data)
+{
+ QGeoPositionInfo posInfo;
+ QGeoCoordinate coordinate;
+ QGeoSatelliteInfo satInfo;
+ int satellitesInUseCount = 0;
+ LiblocationWrapper *object;
+
+ if (!data || !device) {
+ return;
+ }
+
+ object = (LiblocationWrapper *)data;
+
+ if (device) {
+ if (device->fix) {
+ if (device->fix->fields & LOCATION_GPS_DEVICE_TIME_SET) {
+ posInfo.setTimestamp(QDateTime::fromTime_t(device->fix->time));
+ }
+
+ if (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET) {
+ coordinate.setLatitude(device->fix->latitude);
+ coordinate.setLongitude(device->fix->longitude);
+ posInfo.setAttribute(QGeoPositionInfo::HorizontalAccuracy,
+ device->fix->eph);
+ posInfo.setAttribute(QGeoPositionInfo::VerticalAccuracy,
+ device->fix->epv);
+ }
+
+ if (device->fix->fields & LOCATION_GPS_DEVICE_ALTITUDE_SET) {
+ coordinate.setAltitude(device->fix->altitude);
+ }
+
+ if (device->fix->fields & LOCATION_GPS_DEVICE_SPEED_SET) {
+ posInfo.setAttribute(QGeoPositionInfo::GroundSpeed,
+ device->fix->speed);
+ }
+
+ if (device->fix->fields & LOCATION_GPS_DEVICE_CLIMB_SET) {
+ posInfo.setAttribute(QGeoPositionInfo::VerticalSpeed,
+ device->fix->climb);
+ }
+
+ if (device->fix->fields & LOCATION_GPS_DEVICE_TRACK_SET) {
+ posInfo.setAttribute(QGeoPositionInfo::Direction,
+ device->fix->track);
+ }
+ }
+
+ if (device->satellites_in_view) {
+ QList<QGeoSatelliteInfo> satsInView;
+ QList<QGeoSatelliteInfo> satsInUse;
+ unsigned int i;
+ for (i=0;i<device->satellites->len;i++) {
+ LocationGPSDeviceSatellite *satData =
+ (LocationGPSDeviceSatellite *)g_ptr_array_index(device->satellites,
+ i);
+ satInfo.setSignalStrength(satData->signal_strength);
+ satInfo.setPrnNumber(satData->prn);
+ satInfo.setAttribute(QGeoSatelliteInfo::Elevation,
+ satData->elevation);
+ satInfo.setAttribute(QGeoSatelliteInfo::Azimuth,
+ satData->azimuth);
+
+ satsInView.append(satInfo);
+ if (satData->in_use) {
+ satellitesInUseCount++;
+ satsInUse.append(satInfo);
+ }
+ }
+
+ if (!satsInView.isEmpty())
+ object->satellitesInViewUpdated(satsInView);
+
+ if (!satsInUse.isEmpty())
+ object->satellitesInUseUpdated(satsInUse);
+ }
+ }
+
+ posInfo.setCoordinate(coordinate);
+
+ if ((device->fix->fields & LOCATION_GPS_DEVICE_TIME_SET) &&
+ ((device->fix->mode == LOCATION_GPS_DEVICE_MODE_3D) ||
+ (device->fix->mode == LOCATION_GPS_DEVICE_MODE_2D))) {
+ object->setLocation(posInfo, true);
+ } else {
+ object->setLocation(posInfo, false);
+ }
+}
+
+void LiblocationWrapper::setLocation(const QGeoPositionInfo &update,
+ bool locationValid)
+{
+ validLastSatUpdate = locationValid;
+ lastSatUpdate = update;
+}
+
+QGeoPositionInfo LiblocationWrapper::position() {
+ return lastSatUpdate;
+}
+
+bool LiblocationWrapper::fixIsValid()
+{
+ return validLastSatUpdate;
+}
+
+QGeoPositionInfo LiblocationWrapper::lastKnownPosition(bool fromSatellitePositioningMethodsOnly) const
+{
+ QGeoPositionInfo posInfo;
+ QGeoCoordinate coordinate;
+ double time;
+ double latitude;
+ double longitude;
+ double altitude;
+ double speed;
+ double track;
+ double climb;
+
+ GConfItem lastKnownPositionTime("/system/nokia/location/lastknown/time");
+ GConfItem lastKnownPositionLatitude("/system/nokia/location/lastknown/latitude");
+ GConfItem lastKnownPositionLongitude("/system/nokia/location/lastknown/longitude");
+ GConfItem lastKnownPositionAltitude("/system/nokia/location/lastknown/altitude");
+ GConfItem lastKnownPositionSpeed("/system/nokia/location/lastknown/speed");
+ GConfItem lastKnownPositionTrack("/system/nokia/location/lastknown/track");
+ GConfItem lastKnownPositionClimb("/system/nokia/location/lastknown/climb");
+
+ if (validLastSatUpdate)
+ return lastSatUpdate;
+
+ if (!fromSatellitePositioningMethodsOnly)
+ if (validLastUpdate)
+ return lastUpdate;
+
+ time = lastKnownPositionTime.value().toDouble();
+ latitude = lastKnownPositionLatitude.value().toDouble();
+ longitude = lastKnownPositionLongitude.value().toDouble();
+ altitude = lastKnownPositionAltitude.value().toDouble();
+ speed = lastKnownPositionSpeed.value().toDouble();
+ track = lastKnownPositionTrack.value().toDouble();
+ climb = lastKnownPositionClimb.value().toDouble();
+
+ if (longitude && latitude) {
+ coordinate.setLongitude(longitude);
+ coordinate.setLatitude(latitude);
+ if (altitude) {
+ coordinate.setAltitude(altitude);
+ }
+ posInfo.setCoordinate(coordinate);
+ }
+
+ if (speed) {
+ posInfo.setAttribute(QGeoPositionInfo::GroundSpeed, speed);
+ }
+
+ if (track) {
+ posInfo.setAttribute(QGeoPositionInfo::Direction, track);
+ }
+
+ if (climb) {
+ posInfo.setAttribute(QGeoPositionInfo::VerticalSpeed, climb);
+ }
+
+ // Only positions with time (3D) are provided.
+ if (time) {
+ posInfo.setTimestamp(QDateTime::fromTime_t(time));
+ return posInfo;
+ }
+
+ return QGeoPositionInfo();
+}
+
+void LiblocationWrapper::satellitesInViewUpdated(const QList<QGeoSatelliteInfo> &satellites)
+{
+ satsInView = satellites;
+}
+
+void LiblocationWrapper::satellitesInUseUpdated(const QList<QGeoSatelliteInfo> &satellites)
+{
+ satsInUse = satellites;
+}
+
+QList<QGeoSatelliteInfo> LiblocationWrapper::satellitesInView()
+{
+ return satsInView;
+}
+
+QList<QGeoSatelliteInfo> LiblocationWrapper::satellitesInUse()
+{
+ return satsInUse;
+}
+
+void LiblocationWrapper::start() {
+ startcounter++;
+
+ if ((locationState & LiblocationWrapper::Inited) &&
+ !(locationState & LiblocationWrapper::Started)) {
+ if (!errorHandlerId) {
+ errorHandlerId =
+ g_signal_connect(G_OBJECT(locationControl), "error-verbose",
+ G_CALLBACK(&locationError),
+ static_cast<void*>(this));
+ }
+
+ if (!posChangedId) {
+ posChangedId =
+ g_signal_connect(G_OBJECT(locationDevice), "changed",
+ G_CALLBACK(&locationChanged),
+ static_cast<void*>(this));
+ }
+
+ location_gpsd_control_start(locationControl);
+
+ locationState |= LiblocationWrapper::Started;
+ locationState &= ~LiblocationWrapper::Stopped;
+ }
+}
+
+void LiblocationWrapper::stop() {
+ startcounter--;
+
+ if (startcounter > 0)
+ return;
+
+ if ((locationState & (LiblocationWrapper::Started |
+ LiblocationWrapper::Inited)) &&
+ !(locationState & LiblocationWrapper::Stopped)) {
+ if (errorHandlerId)
+ g_signal_handler_disconnect(G_OBJECT(locationControl),
+ errorHandlerId);
+ if (posChangedId)
+ g_signal_handler_disconnect(G_OBJECT(locationDevice),
+ posChangedId);
+ errorHandlerId = 0;
+ posChangedId = 0;
+ startcounter = 0;
+ location_gpsd_control_stop(locationControl);
+
+ locationState &= ~LiblocationWrapper::Started;
+ locationState |= LiblocationWrapper::Stopped;
+ }
+}
+
+bool LiblocationWrapper::isActive() {
+ if (locationState & LiblocationWrapper::Started)
+ return true;
+ else
+ return false;
+}
+
+#include "moc_liblocationwrapper_p.cpp"
+QTM_END_NAMESPACE
+