response.cpp

来自「提取各种NEMA0183格式数据的类编程。」· C++ 代码 · 共 110 行

/*
** Author: Samuel R. Blackburn
** Internet: [e-mail]
**
** Copyright, 1996-2005, Samuel R. Blackburn
**
** "You can get credit for something or get it done, but not both."
** Dr. Richard Garwin
**
** BSD License follows.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer. Redistributions
** in binary form must reproduce the above copyright notice, this list
** of conditions and the following disclaimer in the documentation and/or
** other materials provided with the distribution. Neither the name of
** the WFC nor the names of its contributors may be used to endorse or
** promote products derived from this software without specific prior
** written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
** $Workfile: response.cpp $
** $Revision: 6 $
** $Modtime: 10/10/98 2:51p $
*/

#include "nmea0183.h"
#pragma hdrstop

#if defined( _DEBUG ) && defined( _INC_CRTDBG )
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#define new DEBUG_NEW
#endif // _DEBUG

RESPONSE::RESPONSE()
{
   DataSource = TEXT( "--" ); // Default to an unknown source
   Mnemonic.Empty();
   Talker.Empty();

   // 15 Jan 98 - Thanks go to Craig Miller ([e-mail]) for
   // finding a bug here. I had left off the () after Empty
   ErrorMessage.Empty();
}

RESPONSE::~RESPONSE()
{
   DataSource.Empty();
   Mnemonic.Empty();
   Talker.Empty();
   ErrorMessage.Empty();
}

void RESPONSE::InvalidChecksum( void )
{
   SetErrorMessage( TEXT( "Invalid Checksum" ) );
}

void RESPONSE::SetContainer( NMEA0183 *container )
{
   ASSERT( container != NULL );
   container_p = container;
}

void RESPONSE::SetErrorMessage( const CString& error_message )
{
   ErrorMessage  = Mnemonic;
   ErrorMessage += TEXT( ", " );
   ErrorMessage += error_message;
}

BOOL RESPONSE::Write( SENTENCE& sentence )
{
   /*
   ** All NMEA0183 sentences begin with the mnemonic...
   **
   ** Thanks to Jan-Erik Eriksson ([e-mail]) for
   ** finding and fixing a bug here
   */

   sentence = TEXT( "$" ) + DataSource + Mnemonic;

   return( TRUE );
}

CString RESPONSE::ToText( void ) const
{
   CString return_string;

   return_string.Empty();

   return( return_string );
}