--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/src/location/qgeosatelliteinfosource_wince.cpp	Fri Apr 16 15:51:22 2010 +0300
@@ -0,0 +1,169 @@
+/****************************************************************************
+**
+** 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 <QList>
+#include <QHash>
+
+#include <qgeosatelliteinfo.h>
+
+#include "qgeosatelliteinfosource_wince_p.h"
+#include "qgeoinfothread_wince_p.h"
+
+QTM_BEGIN_NAMESPACE
+
+// ========== QGeoSatelliteInfoValidator ==========
+
+QGeoSatelliteInfoValidator::QGeoSatelliteInfoValidator() : QGeoInfoValidator() {}
+
+QGeoSatelliteInfoValidator::~QGeoSatelliteInfoValidator() {}
+
+// Returns true if data contains at least the minimal amount of data we need to produce one of the
+// QGeoSatelliteInfoSource signals, otherwise returns false.
+bool QGeoSatelliteInfoValidator::valid(const GPS_POSITION &data) const
+{
+    if (((data.dwValidFields & GPS_VALID_SATELLITE_COUNT) == 0)
+            || ((data.dwValidFields & GPS_VALID_SATELLITES_IN_VIEW) == 0)
+            || ((data.dwValidFields & GPS_VALID_SATELLITES_IN_VIEW_PRNS) == 0)
+            || ((data.dwValidFields & GPS_VALID_SATELLITES_IN_VIEW_SIGNAL_TO_NOISE_RATIO) == 0)) {
+        return false;
+    }
+    return true;
+}
+
+// ========== QGeoSatelliteInfoSourceWinCE ==========
+
+QGeoSatelliteInfoSourceWinCE::QGeoSatelliteInfoSourceWinCE(QObject *parent) : QGeoSatelliteInfoSource(parent)
+{
+    QGeoSatelliteInfoValidator *validator = new QGeoSatelliteInfoValidator();
+
+    // The QGeoInfoThreadWinCE instance takes ownership of the validator.
+    infoThread = new QGeoInfoThreadWinCE(validator, false, this);
+    infoThread->setUpdateInterval(DefaultUpdateInterval);
+    infoThread->start();
+
+    // QGeoInfoThreadWinCE takes care of registering GPS_POSITION as a metatype.
+    connect(infoThread, SIGNAL(dataUpdated(GPS_POSITION)), this, SLOT(dataUpdated(GPS_POSITION)));
+    connect(infoThread, SIGNAL(updateTimeout()), this, SIGNAL(requestTimeout()));
+}
+
+QGeoSatelliteInfoSourceWinCE::~QGeoSatelliteInfoSourceWinCE()
+{
+    delete infoThread;
+}
+
+void QGeoSatelliteInfoSourceWinCE::startUpdates()
+{
+    infoThread->startUpdates();
+}
+
+void QGeoSatelliteInfoSourceWinCE::stopUpdates()
+{
+    infoThread->stopUpdates();
+}
+
+void QGeoSatelliteInfoSourceWinCE::requestUpdate(int timeout)
+{
+    if (timeout < 0)
+        emit requestTimeout();
+    else
+        infoThread->requestUpdate(timeout);
+}
+
+/*
+ This is _only_ called when QGeoSatelliteInfoValidator::valid() returns true for the position.
+ This means that it is implied that:
+ - (data.dwValidFields & GPS_VALID_SATELLITE_COUNT) != 0
+ - (data.dwValidFields & GPS_VALID_SATELLITES_IN_VIEW) != 0
+ - (data.dwValidFields & GPS_VALID_SATELLITES_IN_VIEW_PRNS) != 0
+ - (data.dwValidFields & GPS_VALID_SATELLITES_IN_VIEW_SIGNAL_TO_NOISE_RATIO) != 0
+
+ This guarantees that the newly created position will be valid.
+ If the code is changed such that this is no longer guaranteed then this method will need to be
+ updated to test for those conditions.
+*/
+void QGeoSatelliteInfoSourceWinCE::dataUpdated(GPS_POSITION data)
+{
+    // Satellites in view are hashed on the PRN values since the PRN value is how we
+    // determine which of the satellites are in use.
+    QHash<int, QGeoSatelliteInfo> satellitesInView;
+
+    for (unsigned int i = 0; i < data.dwSatellitesInView; ++i) {
+        QGeoSatelliteInfo satellite;
+
+        satellite.setPrnNumber(data.rgdwSatellitesInViewPRNs[i]);
+        satellite.setSignalStrength(data.rgdwSatellitesInViewSignalToNoiseRatio[i]);
+
+        // The following properties are optional, and so are set if the data is present and valid
+        // in the GPS_POSITION structure.
+        if ((data.dwValidFields & GPS_VALID_SATELLITES_IN_VIEW_AZIMUTH) != 0) {
+            satellite.setAttribute(QGeoSatelliteInfo::Azimuth,
+                                   data.rgdwSatellitesInViewAzimuth[i]);
+        }
+
+        if ((data.dwValidFields & GPS_VALID_SATELLITES_IN_VIEW_ELEVATION) != 0) {
+            satellite.setAttribute(QGeoSatelliteInfo::Elevation,
+                                   data.rgdwSatellitesInViewElevation[i]);
+        }
+
+        satellitesInView.insert(satellite.prnNumber(), satellite);
+    }
+
+    emit satellitesInViewUpdated(satellitesInView.values());
+
+    // If the PRN data for the satellites which were used is unavailable we are done...
+    if ((data.dwValidFields & GPS_VALID_SATELLITES_USED_PRNS) == 0)
+        return;
+
+    // ...otherwise we construct the list of satellites which are in use and emit the appropriate
+    // signal
+    QList<QGeoSatelliteInfo> satellitesInUse;
+
+    for (unsigned int i = 0; i < data.dwSatelliteCount; ++i) {
+        int inUsePRN = data.rgdwSatellitesUsedPRNs[i];
+        if (satellitesInView.contains(inUsePRN))
+            satellitesInUse << satellitesInView.value(inUsePRN);
+    }
+
+    emit satellitesInUseUpdated(satellitesInUse);
+}
+
+#include "moc_qgeosatelliteinfosource_wince_p.cpp"
+QTM_END_NAMESPACE