/* Copyright (c) Mark J. Kilgard, 1994. */

/* This program is freely distributable without licensing fees

   and is provided without guarantee or warrantee expressed or

   implied. This program is -not- in the public domain. */

#if defined(__APPLE__)

#include "glut.h"

#include "macx_utilities.h"

#else

#include "glutint.h"

#endif

#include "glutbitmap.h"

/* CENTRY */

int APIENTRY 

glutBitmapWidth(GLUTbitmapFont font, int c)

{

  BitmapFontPtr fontinfo;

  const BitmapCharRec *ch;

#ifdef _WIN32

  fontinfo = (BitmapFontPtr) __glutFont(font);

#else

  fontinfo = (BitmapFontPtr) font;

#endif

  if (c < fontinfo->first || c >= fontinfo->first + fontinfo->num_chars)

    return 0;

  ch = fontinfo->ch[c - fontinfo->first];

  if (ch)

    return ch->advance;

  else

    return 0;

}

int APIENTRY 

glutBitmapLength(GLUTbitmapFont font, const unsigned char *string)

{

  int c, length;

  BitmapFontPtr fontinfo;

  const BitmapCharRec *ch;

#ifdef _WIN32

  fontinfo = (BitmapFontPtr) __glutFont(font);

#else

  fontinfo = (BitmapFontPtr) font;

#endif

  length = 0;

  for (; *string != '\0'; string++) {

    c = *string;

    if (c >= fontinfo->first && c < fontinfo->first + fontinfo->num_chars) {

      ch = fontinfo->ch[c - fontinfo->first];

      if (ch)

        length += ch->advance;

    }

  }

  return length;

}

/* ENDCENTRY */