/usr/include/qgis/qgsgpsconnection.h is in libqgis-dev 1.7.4+1.7.5~20120320-1.1+b1.
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qgsgpsconnection.h - description
-------------------
begin : November 30th, 2009
copyright : (C) 2009 by Marco Hugentobler
email : marco at hugis dot net
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSGPSCONNECTION_H
#define QGSGPSCONNECTION_H
#include <QDateTime>
#include <QObject>
class QIODevice;
struct CORE_EXPORT QgsSatelliteInfo
{
int id;
bool inUse;
int elevation;
int azimuth;
int signal;
};
struct CORE_EXPORT QgsGPSInformation
{
double latitude;
double longitude;
double elevation;
double speed; //in km/h
double direction;
QList<QgsSatelliteInfo> satellitesInView;
double pdop;
double hdop;
double vdop;
QDateTime utcDateTime;
};
/**Abstract base class for connection to a GPS device*/
class CORE_EXPORT QgsGPSConnection : public QObject
{
Q_OBJECT
public:
enum Status
{
NotConnected,
Connected,
DataReceived,
GPSDataReceived
};
/**Constructor
@param dev input device for the connection (e.g. serial device). The class takes ownership of the object
@param pollIntervall update intervall in milliseconds*/
QgsGPSConnection( QIODevice* dev );
virtual ~QgsGPSConnection();
/**Opens connection to device*/
bool connect();
/**Closes connection to device*/
bool close();
/**Sets the GPS source. The class takes ownership of the device class*/
void setSource( QIODevice* source );
/**Returns the status. Possible state are not connected, connected, data received*/
Status status() const { return mStatus; }
/**Returns the current gps information (lat, lon, etc.)*/
QgsGPSInformation currentGPSInformation() const { return mLastGPSInformation; }
signals:
void stateChanged( const QgsGPSInformation& info );
protected:
/**Data source (e.g. serial device, socket, file,...)*/
QIODevice* mSource;
/**Last state of the gps related variables (e.g. position, time, ...)*/
QgsGPSInformation mLastGPSInformation;
/**Connection status*/
Status mStatus;
private:
/**Closes and deletes mSource*/
void cleanupSource();
void clearLastGPSInformation();
protected slots:
/**Parse available data source content*/
virtual void parseData() = 0;
};
#endif // QGSGPSCONNECTION_H
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