www.pudn.com > ucosv2(GUI).rar > GUIUC1.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        : GUIUC1.C 
Purpose     : Implementation of character and string services 
---------------------------------------------------------------------- 
Version-Date---Author-Explanation 
---------------------------END-OF-HEADER------------------------------ 
*/ 
 
#include            /* needed for definition of NULL */ 
#include "GUI_Private.H" 
 
#if GUI_SUPPORT_UNICODE 
 
/* 
************************************************************ 
* 
*            static functions 
* 
************************************************************ 
*/ 
 
static int GetLineDistX(const U16 GUI_FAR *s, int Len) { 
  int Dist =0; 
  if (s) { 
    U16 c0; 
    while (((c0=*s) !=0) && Len >=0) { 
      s++; Len--; 
      Dist += GUI_GetCharDistX(c0); 
    } 
  } 
  return Dist; 
} 
 
static int GetLineLen(const U16 GUI_FAR *s, int MaxLen) { 
  int Len =0; 
  if (!s) 
    return 0; 
  { 
    while ((*s !=0) && Len < MaxLen) { 
      Len++; s++; 
    } 
  } 
  return Len; 
} 
 
static void DispLine_UC(const U16 GUI_FAR *s, int Len, const GUI_RECT *pRect) { 
  if (GUI_Context.pClipRect_HL) { 
    if (GUI_RectsIntersect(GUI_Context.pClipRect_HL, pRect) == 0) 
      return; 
  } 
  { 
    U16 c0; 
    while (--Len >=0) { 
      c0=*s++; 
      GL_DispChar (c0); 
    } 
  } 
} 
 
static void DispLine(const U16 GUI_FAR *s, int Len, const GUI_RECT* pr) { 
  GUI_RECT r; 
  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; 
     DispLine_UC(s, Len, &r);    /* Do the actual drawing via routine call. */ 
  #if GUI_WINSUPPORT 
  } WM_ITERATE_END(); 
  WM_SUBORG(GUI_Context.DispPosX, GUI_Context.DispPosY); 
  #endif 
} 
 
/* 
************************************************************ 
* 
*            UNICODE routines 
* 
************************************************************ 
*/ 
 
void GUI_DispString_UC(const U16 GUI_FAR *s) { 
  int xAdjust, yAdjust, xOrg; 
  int FontSizeY; 
  if (!s) 
    return; 
  GUI_LOCK(); 
  FontSizeY = GUI_Context.pAFont->YSize; 
  xOrg = GUI_Context.DispPosX; 
 /* Adjust vertical position */ 
  yAdjust = GUI_GetYAdjust(); 
  GUI_Context.DispPosY -= yAdjust; 
  for (; *s; s++) { 
    GUI_RECT r; 
    int LineLen= GetLineLen(s,0x7fff); 
    int xLineSize = GetLineDistX(s, LineLen); 
  /* Check if x-position needs to be changed due to h-alignment */ 
    switch (GUI_Context.TextAlign & GUI_TA_HORIZONTAL) {  
    case GUI_TA_CENTER: xAdjust= xLineSize/2; break; 
    case GUI_TA_RIGHT:  xAdjust= xLineSize; break; 
    default:            xAdjust= 0; 
    } 
    r.x0 = GUI_Context.DispPosX -= xAdjust; 
    r.x1 = r.x0 + xLineSize-1;     
    r.y0 = GUI_Context.DispPosY; 
    r.y1 = r.y0 + FontSizeY-1;     
    DispLine(s, LineLen, &r); 
    GUI_Context.DispPosY = r.y0; 
    s += LineLen; 
    if (*s=='\n') { 
      switch (GUI_Context.TextAlign & GUI_TA_HORIZONTAL) {  
      case GUI_TA_CENTER: 
      case GUI_TA_RIGHT: 
        GUI_Context.DispPosX = xOrg; 
        break; 
      default: 
        GUI_Context.DispPosX = GUI_Context.LBorder; 
        break; 
      } 
      GUI_Context.DispPosY += GUI_GetFontDistY(); 
    } else { 
      GUI_Context.DispPosX = r.x0+xLineSize; 
    } 
    if (*s==0)    /* end of string (last line) reached ? */ 
      break; 
  } 
  GUI_Context.DispPosY += yAdjust; 
  GUI_Context.TextAlign &= ~GUI_TA_HORIZONTAL; 
  GUI_UNLOCK(); 
} 
 
#else 
 
void GUIUC1_C(void) {} /* avoid empty object files */ 
 
#endif /* GUI_SUPPORT_UNICODE */