lutils.cpp

ldraw_DOS游戏开发包

#include <lutils.h>
#include <string.h>
#include <lkey.h>
char   lg_input(char *string,short x1,short y1,short x2,short y2,uchar bcolor,short maxlen);
static void lg_input_draw(char *string,short x1,short y1,short x2,short y2,uchar bcolor,short mode);

char   lg_input(char *string,short x1,short y1,short x2,short y2,uchar bcolor,short maxlen)
{ static long *_ttime=(long*)0x46cL;
  char ch,cmd=0,ret=0; short code,len=strlen(string),color=ld_workColor;
  if (lkpressed()) {
    ch=lkgetch(&code);
    if (code==KEY_BACKSPACE) string[len-1]=0,cmd=1;
    else if (code==KEY_ENTER) ret=1,cmd=1;
    else if (code==KEY_ESC) ret=2,cmd=1;
    else if (code==KEY_UP||code==KEY_DOWN||code==KEY_LEFT||code==KEY_RIGHT) cmd=1;
    if (!cmd) { string[len]=ch; if (++len>maxlen) len=maxlen; string[len]=0; }
  }
  lg_input_draw(string,x1,y1,x2-9,y2,bcolor,1);
  lsetColor(bcolor); lbar(ld_x+1,y1,x2,y2);
  if (((*_ttime)&15)<=8) lsetColor(color);
  lline(ld_x,ld_y-4,ld_x,ld_y+3); 
  lsetColor(color);
  return ret;
}
static void lg_input_draw(char *string,short x1,short y1,short x2,short y2,uchar bcolor,short mode)
{ short len=x2-x1+1,wid=y2-y1+1,x=x1,y=(y1+y2)/2;
  short count=len/8,str_len=strlen(string);
  uchar save_bcolor=ld_workBColor,save_color=ld_workColor;
  char  *p=string; 
  if (str_len>count) p=string+str_len-count;
  ld_workBColor=bcolor;
  lgotoxy(x,y); 
  louttext(p); 
  lsetColor(bcolor); lline(x,y1,x,y2);
  if (mode==0) lbar(ld_x,y1,x1+(count<<3),y2);
  ld_workBColor=save_bcolor;
  ld_workColor=save_color;
}