PositionTracking.h

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//
// This file is part of the Marble Virtual Globe.
//
// This program is free software licensed under the GNU LGPL. You can
// find a copy of this license in LICENSE.txt in the top directory of
// the source code.
//
// Copyright 2007   Andrew Manson   <g.real.ate@gmail.com>
// Copyright 2009   Eckhart Wörner  <ewoerner@kde.org>
// Copyright 2010   Thibaut Gridel  <tgridel@free.fr>
//

#ifndef MARBLE_POSITIONTRACKING_H
#define MARBLE_POSITIONTRACKING_H

#include "marble_export.h"
#include "PositionProviderPluginInterface.h"

#include <QObject>

namespace Marble
{

class GeoDataAccuracy;
class GeoDataDocument;
class GeoDataCoordinates;
class GeoDataTreeModel;
class PositionProviderPlugin;
class PositionTrackingPrivate;

class MARBLE_EXPORT PositionTracking : public QObject
{
    Q_OBJECT

    Q_PROPERTY( PositionProviderPlugin* positionProviderPlugin READ positionProviderPlugin WRITE setPositionProviderPlugin NOTIFY positionProviderPluginChanged )

public:
    explicit PositionTracking( GeoDataTreeModel* model );
    ~PositionTracking();

    void setPositionProviderPlugin( PositionProviderPlugin* plugin );

    PositionProviderPlugin* positionProviderPlugin();

    QString error() const;

    qreal speed() const;

    qreal direction() const;

    QDateTime timestamp() const;

    GeoDataAccuracy accuracy() const;

    bool trackVisible() const;

    GeoDataCoordinates currentLocation() const;

    PositionProviderStatus status() const;

    bool isTrackEmpty() const;

    qreal length( qreal planetRadius ) const;

    void readSettings();

    void writeSettings();

public Q_SLOTS:
    void setTrackVisible ( bool visible );

    bool saveTrack( const QString& fileName );

    void clearTrack();

Q_SIGNALS:
    void  gpsLocation( GeoDataCoordinates, qreal );

    void statusChanged( PositionProviderStatus status );

    void positionProviderPluginChanged( PositionProviderPlugin *activePlugin );

 private:
    Q_PRIVATE_SLOT( d, void updatePosition() )
    Q_PRIVATE_SLOT( d, void updateStatus() )

    friend class PositionTrackingPrivate;
    PositionTrackingPrivate* const d;
};

}



#endif