gui_uc.c

ucgui的3.98版本的源代码

/*
*********************************************************************************************************
*                                             uC/GUI V3.98
*                        Universal graphic software for embedded applications
*
*                       (c) Copyright 2002, Micrium Inc., Weston, FL
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*              礐/GUI is protected by international copyright laws. Knowledge of the
*              source code may not be used to write a similar product. This file may
*              only be used in accordance with a license and should not be redistributed
*              in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File        : GUI_UC_EncodeUTF8.c
Purpose     : Encoding routines
---------------------------END-OF-HEADER------------------------------
*/

#include "GUI_Protected.h"

/*********************************************************************
*
*       Public code
*
**********************************************************************
*/
/*********************************************************************
*
*       GUI_UC_GetCharSize
*/
int GUI_UC_GetCharSize(const char GUI_UNI_PTR * s) {
  #if GUI_SUPPORT_UNICODE
    int r;
    GUI_LOCK();
    r =  GUI_Context.pUC_API->pfGetCharSize(s);
    GUI_UNLOCK();
    return r;
  #else
    return 1;
  #endif
}

/*********************************************************************
*
*       GUI_UC_GetCharCode
*/
U16 GUI_UC_GetCharCode(const char GUI_UNI_PTR * s) {
  #if GUI_SUPPORT_UNICODE
    U16 r;
    GUI_LOCK();
    r =  GUI_Context.pUC_API->pfGetCharCode(s);
    GUI_UNLOCK();
    return r;
  #else
    return *(const U8 GUI_UNI_PTR *)s;
  #endif
}

/*********************************************************************
*
*       GUI_UC_Encode
*/
int GUI_UC_Encode(char* s, U16 Char) {
  #if GUI_COMPILER_SUPPORTS_FP
    #if GUI_SUPPORT_UNICODE
      int r;
      GUI_LOCK();
      r = GUI_Context.pUC_API->pfEncode(s, Char);
      GUI_UNLOCK();
      return r;
    #else
      *s = (U8)(Char);
      return Char;
    #endif
  #else
    GUI_USE_PARA(s);
    GUI_USE_PARA(Char);
    return 0;
  #endif
}

/*********************************************************************
*
*       GUI_UC__CalcSizeOfChar
*/
int GUI_UC__CalcSizeOfChar(U16 Char) {
  #if GUI_SUPPORT_UNICODE
    return GUI_Context.pUC_API->pfCalcSizeOfChar(Char);
  #else
    return 1;
  #endif
}

/*********************************************************************
*
*       GUI_UC__GetCharCodeInc
*/
U16 GUI_UC__GetCharCodeInc(const char GUI_UNI_PTR ** ps) {
  const char GUI_UNI_PTR * s;
  U16 r;
  s   = *ps;
  #if GUI_SUPPORT_UNICODE
    r   = GUI_UC__GetCharCode(s);
    s  += GUI_UC__GetCharSize(s);
  #else
    r   = *s;
    s  += 1;
  #endif
  *ps = s;
  return r;
}

/*********************************************************************
*
*       GUI_UC__NumChars2NumBytes
*/
int GUI_UC__NumChars2NumBytes(const char GUI_UNI_PTR * s, int NumChars) {
  int CharSize, NumBytes = 0;
  while (NumChars--) {
    #if GUI_SUPPORT_UNICODE
      CharSize = GUI_UC__GetCharSize(s);
    #else
      CharSize = 1;
    #endif
    s += CharSize;    
    NumBytes += CharSize;
  }
  return NumBytes;
}

/*********************************************************************
*
*       GUI_UC__NumBytes2NumChars
*/
int GUI_UC__NumBytes2NumChars(const char GUI_UNI_PTR * s, int NumBytes) {
  int CharSize, Chars = 0, Bytes = 0;
  while (NumBytes > Bytes) {
    #if GUI_SUPPORT_UNICODE
      CharSize = GUI_UC__GetCharSize(s + Bytes);
    #else
      CharSize = 1;
    #endif
    Bytes += CharSize;
    Chars++;
  }
  return Chars;
}

/*************************** End of file ****************************/