%!
/waterfalsave save def	% prevent residual side effects
%    Copyright (C) 1992, 1993, 1996 Aladdin Enterprises.  All rights reserved.
% 
% This software is provided AS-IS with no warranty, either express or
% implied.
% 
% This software is distributed under license and may not be copied,
% modified or distributed except as expressly authorized under the terms
% of the license contained in the file LICENSE in this distribution.
% 
% For more information about licensing, please refer to
% http://www.ghostscript.com/licensing/. For information on
% commercial licensing, go to http://www.artifex.com/licensing/ or
% contact Artifex Software, Inc., 1305 Grant Avenue - Suite 200,
% Novato, CA 94945, U.S.A., +1(415)492-9861.

% waterfal.ps
% This file produces a 'waterfall' printout of fonts at various sizes.


% Specify any desired set of up to 3 fonts here.
/Fonts [/Courier /Helvetica] def

% Specify any desired set of point sizes here.
% The sum of the sizes should not exceed (roughly) 100.
% For sizes larger than about 16, some characters may fall off the page.
/Sizes [6 7 8 9 10 11 12 14 16] def

/eol
 { currentfont /FontBBox get aload pop
   exch pop sub exch pop 0 exch
	% Many Ghostscript fonts have incorrect FontBBoxes....
	pop -1000
   1.15 mul currentfont /FontMatrix get dtransform
   translate
   0 0 moveto
 } def

% draw the page landscape
gsave clippath pathbbox grestore
4 dict begin
/ury exch def /urx exch def /lly exch def /llx exch def
90 rotate  llx neg               llx urx sub lly sub  translate  % llx,lly
end

clippath pathbbox newpath
/ury exch def /urx exch def /lly exch def /llx exch def
llx 18 add ury 18 sub translate
% Read the current Y resolution without using Ghostscript-specific operators.
gsave initmatrix 0 72 dtransform abs exch abs exch .max grestore
round cvi /dpi exch def
QUIET not
 { (Creating waterfall printout at ) print dpi =only ( DPI.\n) print flush
 }
if

newpath 0 setgray
/Courier findfont 20 scalefont setfont

Fonts
 { save exch
   QUIET not { dup ==only flush } if
   findfont /basefont exch def
   basefont 20 scalefont setfont eol
   basefont /FontName get =string cvs show
   ( ) show dpi =string cvs show ( DPI) show
   Sizes
    { QUIET not { ( ) print dup =only flush } if
      dup /size exch def basefont exch scalefont setfont eol
      size =string cvs show ( ) show
      (qwertyuiop-asdfghjkl_zxcvbnm ) show
      (QWERTYUIOP+ASDFGHJKL/ZXCVBNM ) show
      (1470258369 .,:;?!) show
    } forall
   QUIET not { () = flush } if
   matrix currentmatrix aload pop
   7 -1 roll restore
   6 array astore setmatrix
 } forall

clear cleardictstack
waterfalsave restore
% Per page independence description in the PLRM Section 3.7.3, showpage follows restore
showpage