hz.c

在ucos上实现了图形用户接口GUI；值得一看

#include "string.h"
#include "fcntl.h"
#include "io.h"

#include "GUI.H"
#include "GProtect.h"

static int handle;

int OpenHZ(const char *Hz16Path)
{
 return (handle=open(Hz16Path,O_BINARY));
}

int CloseHZ ()
{
 if (handle<0) return -1;
 else return close (handle);
}

int GetBit(unsigned char c,int n){
 return((c>>n)&1);
}

int WriteHZ (int x, int y,const char *p,int color)
{
  U16 c1,c2,rec;
  long l;
  char pixeldata[32];

  int BytesPerLine;
  GUI_DRAWMODE DrawMode = GUI_Context.TextMode;
  GUI_DRAWMODE OldDrawMode;

  if (handle<0 ) return 0;
  if (p==NULL) return 0;

  c1=(p[0]-0xa1)&0x07f;
  c2=(p[1]-0xa1)&0x07f;

  rec=c1*94+c2;
  l=rec*32L;
  lseek(handle,l,SEEK_SET);
  read(handle,pixeldata,32);

  BytesPerLine = 2;
  OldDrawMode  = LCD_SetDrawMode(DrawMode);
  LCD_DrawBitmap (GUI_Context.DispPosX, GUI_Context.DispPosY,
		  HZSIZEX,HZSIZEY,
		  1, 1,
		  1,            /*Bits per Pixel */
		  BytesPerLine,
		  (U8*)pixeldata,
		  NULL  /* no palette means default palette */
		  );
  /* Fill empty pixel lines */
  /*
  if (GUI_Context.pAFont->YDist > GUI_Context.pAFont->YSize) {
    int YMag = GUI_Context.pAFont->YMag;
    int YDist = GUI_Context.pAFont->YDist * YMag;
    int YSize = GUI_Context.pAFont->YSize * YMag;
    if (DrawMode != LCD_DRAWMODE_TRANS) {
    LCD_COLOR OldColor = GUI_GetColor();
    GUI_SetColor(GUI_GetBkColor());
    LCD_FillRect(GUI_Context.DispPosX,
		 GUI_Context.DispPosY + YSize,
		 GUI_Context.DispPosX + pCharInfo->XSize,
		 GUI_Context.DispPosY + YDist);
    GUI_SetColor(OldColor);
  }
  */
  LCD_SetDrawMode(OldDrawMode); /* Restore draw mode */
  GUI_Context.DispPosX += HZSIZEX;
}