www.pudn.com > UCGUI390a.rar > GUICharLine.c

/* 
********************************************************************************************************* 
*                                                uC/GUI 
*                        Universal graphic software for embedded applications 
* 
*                       (c) Copyright 2002, Micrium Inc., Weston, FL 
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH 
* 
*              µC/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        : GUICharLine.C 
Purpose     : Implementation of character and string services 
---------------------------END-OF-HEADER------------------------------ 
*/ 
 
#include            /* needed for definition of NULL */ 
#include  
#include "GUI_Protected.h" 
 
/********************************************************************* 
* 
*       Static code 
* 
********************************************************************** 
*/ 
/********************************************************************* 
* 
*       _DispLine 
*/ 
static void _DispLine(const char GUI_UNI_PTR *s, int MaxNumChars, const GUI_RECT *pRect) { 
  /* Check if we have anything to do at all ... */ 
  if (GUI_Context.pClipRect_HL) { 
    if (GUI_RectsIntersect(GUI_Context.pClipRect_HL, pRect) == 0) 
      return; 
  } 
  #if GUI_COMPILER_SUPPORTS_FP 
  if (GUI_Context.pAFont->pafEncode) { 
    GUI_Context.pAFont->pafEncode->pfDispLine(s, MaxNumChars); 
  } else { 
  #else 
  { 
  #endif 
    U16 Char; 
    while (--MaxNumChars >= 0) { 
      Char = GUI_UC__GetCharCodeInc(&s); 
      GUI_Context.pAFont->pfDispChar(Char); 
      if (GUI_pfDispCharStyle) { 
        GUI_pfDispCharStyle(Char); 
      } 
    } 
  } 
} 
 
/********************************************************************* 
* 
*       Public code 
* 
********************************************************************** 
*/ 
/********************************************************************* 
* 
*       GUI__GetLineNumChars 
*/ 
int GUI__GetLineNumChars(const char GUI_UNI_PTR *s, int MaxNumChars) { 
  int NumChars = 0; 
  if (s) { 
    #if GUI_COMPILER_SUPPORTS_FP 
      if (GUI_Context.pAFont->pafEncode) { 
        return GUI_Context.pAFont->pafEncode->pfGetLineLen(s, MaxNumChars); 
      } 
    #endif 
    for (; NumChars < MaxNumChars; NumChars++) { 
      U16 Data = GUI_UC__GetCharCodeInc(&s); 
      if ((Data == 0) || (Data == '\n')) { 
        break; 
      } 
    } 
  } 
  return NumChars; 
} 
 
/********************************************************************* 
* 
*       GUI_GetLineDistX 
* 
*  This routine is used to calculate the length of a line in pixels. 
*/ 
int GUI__GetLineDistX(const char GUI_UNI_PTR *s, int MaxNumChars) { 
  int Dist = 0; 
  if (s) { 
    U16 Char; 
    #if GUI_COMPILER_SUPPORTS_FP 
      if (GUI_Context.pAFont->pafEncode) { 
        return GUI_Context.pAFont->pafEncode->pfGetLineDistX(s, MaxNumChars); 
      } 
    #endif 
    while (--MaxNumChars >= 0) { 
      Char  = GUI_UC__GetCharCodeInc(&s); 
      Dist += GUI_GetCharDistX(Char); 
    } 
  } 
  return Dist; 
} 
 
/********************************************************************* 
* 
*       GUI__DispLine 
*/ 
void GUI__DispLine(const char GUI_UNI_PTR *s, int MaxNumChars, const GUI_RECT* pr) { 
  GUI_RECT r; 
  #if GUI_SUPPORT_ROTATION 
  if (GUI_pLCD_APIList) { 
    #if GUI_WINSUPPORT 
    WM_ITERATE_START(NULL) { 
    #endif 
      /* Do the actual drawing via routine call. */ 
      _DispLine(s, MaxNumChars, &r); 
    #if GUI_WINSUPPORT 
    } WM_ITERATE_END(); 
    #endif 
  } else 
  #endif 
  { 
    r = *pr; 
    #if GUI_WINSUPPORT 
    WM_ADDORG(r.x0, r.y0); 
    WM_ADDORG(r.x1, r.y1); 
    WM_ITERATE_START(&r) { 
    #endif 
      GUI_Context.DispPosX = r.x0; 
      GUI_Context.DispPosY = r.y0; 
      /* Do the actual drawing via routine call. */ 
      _DispLine(s, MaxNumChars, &r); 
    #if GUI_WINSUPPORT 
    } WM_ITERATE_END(); 
    WM_SUBORG(GUI_Context.DispPosX, GUI_Context.DispPosY); 
    #endif 
  } 
} 
 
/*************************** End of file ****************************/