#if ! defined( DCN_CLASS_HEADER )

#define DCN_CLASS_HEADER

/*
** Author: Samuel R. Blackburn
** Internet: sam_blackburn@pobox.com
**
** You can use it any way you like as long as you don't try to sell it.
**
** Copyright, 1996, Samuel R. Blackburn
**
** $Workfile: dcn.hpp $
** $Revision: 4 $
** $Modtime: 10/10/98 4:39p $
*/

typedef enum
{
   BasisUnknown = 0,
   NormalPatternBasis,
   LaneIdentificationPatternBasis,
   LaneIdentificationTransmissionsBasis
}
FIX_DATA_BASIS;

class DCN : public RESPONSE
{
   public:

      DCN();
      virtual ~DCN();

      /*
      ** Data
      */

      int              DeccaChainID;
      LINE_OF_POSITION Red;
      LINE_OF_POSITION Green;
      LINE_OF_POSITION Purple;
      NMEA0183_BOOLEAN RedLineNavigationUse;
      NMEA0183_BOOLEAN GreenLineNavigationUse;
      NMEA0183_BOOLEAN PurpleLineNavigationUse;
      double           PositionUncertaintyNauticalMiles;
      FIX_DATA_BASIS   Basis;

      /*
      ** Methods
      */

      virtual void Empty( void );
      virtual BOOL Parse( const SENTENCE& sentence );
      virtual BOOL Write( SENTENCE& sentence );

      /*
      ** Operators
      */

      virtual const DCN& operator = ( const DCN& source );
};

#endif // DCN_CLASS_HEADER