Path: utzoo!attcan!uunet!mcvax!kth!draken!d87-jse
From: d87-jse@nada.kth.se (Joakim Sernbrant)
Newsgroups: comp.windows.x
Subject: Re: converting icons
Message-ID: <1014@draken.nada.kth.se>
Date: 12 May 89 13:02:52 GMT
References: <2194@valhalla.ee.rochester.edu>
Reply-To: d87-jse@nada.kth.se (Joakim Sernbrant)
Organization: Royal Institute of Technology, Stockholm, Sweden
Lines: 90

In article <2194@valhalla.ee.rochester.edu> deke@ee.rochester.edu (Dikran Kassabian) writes:
>
>I'd like to be able to use some of the classier icons I've collected and
>had been using with suntools.  As a first pass, I just pulled out the
>sunview icon header, put in my notion of a reasonable X icon header, and 
>used 'bitmap' to display the icon image.  It looked almost right... but 
>not quite.  It was as though each of the objects were mirror imaged, but
>were correctly placed relative to eachother.  Additionally, some of the
>borders seemed out of place.
>

The problem is that the bits are stored from left to right in one
format and right to left in the other (can't remember which) ...

Here is a quick hack I did to convert bitmaps from Sun to X (use
it any way you like) :

--------- CUT HERE ----------

/*

  s u n t o x b m . c

  Convert Sun icons to X bitmaps.

  usage: suntoxbm < file.icon > file.xbm

*/

#include <ctype.h>

main(argc, argv)
int argc;
char **argv;
{
  char c, s[100], *name = argv[1];
  int w, h, x, n;
  
  scanf("%*s%*s%*[^=]%*c%d%*[^=]%*c%d%*s%*s%*s%*s", &w, &h);

  printf("#define %s_width %d\n", name, w);
  printf("#define %s_height %d\n", name, w);
  printf("static char %s_bits[] = {\n");

  n = 0;
  printf("  ");
  while ((c = getchar()) != -1) {
    if (c == 'x') {
      x = gethex();
      if (n == 12 ) { printf(",\n  "); n = 0; }
      else if (n) printf(", ");
      printf("0x%02x, ", reverse((x & 0xff00) >> 8));
      printf("0x%02x", reverse(x & 0xff));
      n += 2;
    }
  }
  printf("};\n");
}


int reverse(x)
int x;
{
  int i, y = 0;
  for (i = 0; i < 8; i++) {
    y <<= 1;
    y |= ((x & 1) == 1);
    x >>= 1;
  }
  return y;
}


int gethex()
{
  int i, c, x = 0;

  for (i=0; i < 4; i++) {
    x <<= 4;
    c = getchar();
    if (isupper(c)) c = tolower(c);
    if (c >= 'a') x += c - 'a' + 10;
    else x += c - '0';
  }
  return x;
}

-- 
--  Joakim Sernbrant, Royal Institute of Technology, Stockholm, Sweden
--  Internet:  d87-jse@nada.kth.se
--