Filter Library

Camera

Interface Physics

ControlIntegerEdit.cpp

/*
 * ControlIntegerEdit.cpp - an integer entry field.
 *
 * This file is part of the Camera Filter Library.
 * Computer Aided Measurement Environment for Realtime Atomic imaging (Camera)
 *
 * Copyright (C) 2004, Leiden Probe Microscopy.
 * Copyright (C) 2004, Universiteit Leiden.
 *
 * Authors: Martin J. Moene (original)
 *
 * $Id: ControlIntegerEdit.cpp 150 2005-04-25 09:02:30Z moene $
 */

#include "stdafx.h"                     // for common (pre-compiled) headers
//#include <cfl/stdafx.h>                 // for common (pre-compiled) headers
#include <cfl/ControlIntegerEdit.h>     // for class CIntegerEdit

IMPLEMENT_DYNAMIC( CIntegerEdit, CFilterEdit )

/**
 * true if input is complete and valid.
 */

bool CIntegerEdit::Check( const CString &csText )
{
   char *ePtr;
   (void) _tcstol( csText, &ePtr, m_bUseBase ? 0 : 10 );
   return _TCHAR('\0') == *ePtr;
}

/**
 * true if partial input is acceptable.
 */

bool CIntegerEdit::Match( const CString &csText )
{
   int base = 10;

   const TCHAR* cPtr = csText;

   // optional sign?

   if ( _TCHAR('+') == *cPtr || ( m_bSigned && _TCHAR('-') == *cPtr ) )
   {
      ++cPtr;
   }

   // test for leading octal/hexadecimal 0, unless base not used:

   if ( m_bUseBase && _TCHAR('0') == *cPtr )
   {
      ++cPtr;
      base = 8;
   }

   // test for leading hexadecimal 0x, 0X, unless base not used (base is 10):

   if ( 8 == base && ( _TCHAR('x') == *cPtr || _TCHAR('X') == *cPtr ) )
   {
      ++cPtr;
      base = 16;
   }

   // scan remaining digits:

   if ( 8 == base )
   {
      while ( *cPtr && _TCHAR('0') <= *cPtr && *cPtr <= _TCHAR('7') )
        ++cPtr;
   }
   else if ( 10 == base )
   {
      while ( *cPtr && _istdigit( *cPtr ) )
        ++cPtr;
   }
   else if ( 16 == base )
   {
      while ( *cPtr && _istxdigit( *cPtr ) )
        ++cPtr;
   }

   // ok if all characters matched:
   return cPtr == (const TCHAR*) csText + csText.GetLength();
}

/*
 * end of file
 */

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