code: public float getCharPosition(String str, FontOptions options, int position, int charOffset)
  	{
  		if (StringUtils.isEmpty(str))
  			return 0;
  
  		str = processString(str, options);
  		//float fx = position / (fro != null ? fro.fontScale : 1); //factor the position instead of the char widths
  
  		StringWalker walker = new StringWalker(str, options);
  		//walker.startIndex(charOffset);
  		walker.skipChars(true);
  		return 0;//walker.walkToCoord(position);
  	}
docs: Determines the character for a given X coordinate.
  
  @param str the str
  @param options the options
  @param position the position
  @param charOffset the char offset
  @return position