gpsinterface_gpsd.h

Powerful and Portable GPS application -- support Linux, Windows, Windows CE GPS navigation and Map m

/*
 *  Roadnav
 *  GPSInterface_GPSD.h
 *
 *  Copyright (c) 2004 - 2007 Richard L. Lynch <[e-mail]>
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of version 2 of the GNU General Public License
 *  as published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

//////////////////////////////////////////////////////////////////////////////
/// \file
///
/// gpsd interface module.
///
//////////////////////////////////////////////////////////////////////////////

#ifndef GPSINTERFACE_GPSD_H
#define GPSINTERFACE_GPSD_H

#ifdef HAVE_LIBGPS

#include <vector>
#include <wx/datetime.h>

#include "GPSInterface.h"

//////////////////////////////////////////////////////////////////////////////
///
/// \brief Implements gpsd interface
///
//////////////////////////////////////////////////////////////////////////////
class GPSInterface_GPSD : public IGPSInterface
{
	public:
		GPSInterface_GPSD();
		virtual ~GPSInterface_GPSD();
		virtual wxString Name();
		virtual EGPSStatus GetData(wxGPSEvent * pGPSEvent);
		virtual wxString GetLastError();
		virtual EGPSStatus AutoDetect(wxThread * pThread);
		
	private:
		wxString GPSDConnect(wxSocketClient * psockGPSD, wxString strHost, int iPort);
		wxString GPSDDisconnect(wxSocketBase * psockGPSD);
		wxString GPSDGetProtocolVersion(wxSocketBase * psockGPSD, int * piProtocolVersion, int * piMajorGPSDVersion, int * piMinorGPSDVersion, wxString * pstrCommands);
		wxString GPSDGetPosition(wxSocketBase * psockGPSD, int iProtocolVersion, Point * pptGPS);
		wxString GPSDGetHeading(wxSocketBase * psockGPSD, int iProtocolVersion, double * pfHeading);
		wxString GPSDGetSpeed(wxSocketBase * psockGPSD, int iProtocolVersion, double * pfSpeed);
		wxString GPSDGetLastTimestamp(wxSocketBase * psockGPSD, int iProtocolVersion, double * pfLastTimestamp);
		wxString GPSDGetLockType(wxSocketBase * psockGPSD, int iProtocolVersion, int * piLockType);
		wxString GPSDGetSatelliteInfo(wxSocketBase * psockGPSD, int iProtocolVersion, std::vector<SSatelliteInfo> * pvSatInfo, int * pnSatellitesUsed);

		/// Socket to gpsd server
		wxSocketClient m_sockGPSD;
		
		/// gpsd server protocol version
		int m_iGPSDProtocolVersion;
		
		/// Timestamp of last GPS coordinates, as reported by gpsd
		double m_fGPSDLastTimestamp;
		
		/// Local time of last valid GPS sentence
		wxDateTime m_tLastGPSSentence;
		
		/// Minimum speed the vehicle must be moving to accept the heading reported by gpsd
		double m_fMinimumSpeedForHeading;
		
		/// Last error messages
		wxString m_strLastError;


		/// Last valid heading
		double m_fLastHeading;
		
		/// Last valid speed
		double m_fLastSpeed;
		
		/// Last valid satellite info
		SSatelliteInfo m_arLastSatellitesVisible[MAX_GPS_SATELLITES];
		int m_nLastSatellitesVisible;
		
		/// Last number of satellites used for lock
		long m_nLastSatUsedForLock;
		
		/// Last valid lock type
		int m_iLastLockType;
}; // #ifdef HAVE_LIBGPS

#endif // #ifdef HAVE_LIBGPS

#endif // #ifndef GPSINTERFACE_GPSD_H