%!
%%Creator: Eric Gisin <egisin@waterloo.csnet>
%%Title: Print font catalog
% Copyright (c) 1986 Eric Gisin
% Copyright (C) 1992 Aladdin Enterprises, Menlo Park, CA (ghost@aladdin.com)
%   Modified to print all 256 encoded characters.
% Copyright (C) 1993 Aladdin Enterprises, Menlo Park, CA (ghost@aladdin.com)
%   Modified to print unencoded characters.
% Copyright (C) 1994 Aladdin Enterprises, Menlo Park, CA (ghost@aladdin.com)
%   Modified to always create 256-element Encoding vectors.
% Copyright (C) 1995 Aladdin Enterprises, Menlo Park, CA (ghost@aladdin.com)
%   Modified to print more than 128 unencoded characters.
% Copyright (C) 1996 Aladdin Enterprises, Menlo Park, CA (ghost@aladdin.com)
%   Modified to leave a slightly wider left margin, because many H-P
%     printers can't print in the leftmost 1/4" of the page.
%   Modified to print unencoded characters in any font that has CharStrings.

% Example usages at bottom of file

/#copies 1 def
/min { 2 copy gt { exch } if pop } bind def

/T6 /Times-Roman findfont 6 scalefont def
/Temp 64 string def
/Inch {72 mul} def
/Base 16 def	% char code output base
/TempEncoding [ 256 { /.notdef } repeat ] def

% do single character of page
% output to rectangle ll=(0,-24) ur=(36,24)
/DoChar {
  /C exch def
  /S (_) dup 0 C put def
  /N F /Encoding get C get def

  % print code name, width and char name
  /W F setfont S stringwidth pop def
  T6 setfont
  N /.notdef ne {0 -20 moveto N Temp cvs show} if
  0 -12 moveto C Base Temp cvrs show (  ) show
  W 0.0005 add Temp cvs 0 5 getinterval show

  % print char with reference lines
  N /.notdef ne {
    3 0 translate
    0 0 moveto F24 setfont N glyphshow
    /W S stringwidth pop def
    0 -6 moveto 0 24 lineto
    W -6 moveto W 24 lineto
    -3 0 moveto W 3 add 0 lineto
    0 setlinewidth stroke
  } if
} def

% print page title
/DoTitle {
  /Times-Roman findfont 18 scalefont setfont
  36 10.5 Inch moveto FName Temp cvs show ( ) show ((24 point)) show
} def

% print one block of characters
/DoBlock {	% firstcode lastcode
  /FirstCode 2 index def
  1 exch {
    /I exch def
    /Xn I FirstCode sub 16 mod def /Yn I FirstCode sub 16 idiv def
    gsave
    Xn 35 mul 24 add Yn -56 mul 9.5 Inch add translate
    I DoChar
    grestore
  } for
} def

% print a line of character
/DoLine {	% firstcode lastcode
  1 exch { (_) dup 0 3 index put show pop } for
} def

% print font sample page
/DoFont {
  /FName exch def	% font name
  /F FName findfont def
  /F24 F 24 scalefont def
  /Line0 96 string def
  /Line1 96 string def

	% Display the first 128 encoded characters.

  DoTitle (, characters 0-127) show
  0 127 DoBlock
  F 10 scalefont setfont
  36 2.0 Inch moveto 0 63 DoLine
  36 1.5 Inch moveto 64 127 DoLine
  showpage

	% Display the second 128 encoded characters.

  DoTitle (, characters 128-255) show
  128 255 DoBlock
  F 10 scalefont setfont
  36 2.0 Inch moveto 128 191 DoLine
  36 1.5 Inch moveto 192 255 DoLine
  showpage

  F /CharStrings known
   {
		% Find and display the unencoded characters.

	/Encoded F /Encoding get length dict def
	F /Encoding get { true Encoded 3 1 roll put } forall
	/Unencoded [ F /CharStrings get
	 { pop dup Encoded exch known { pop } if }
	forall ] def
	/Count Unencoded length def

		% Print the unencoded characters in blocks of 128.

	0 128 Unencoded length 1 sub
	 { dup 128 add Unencoded length min 1 index sub
	   Unencoded 3 1 roll getinterval TempEncoding copy
	   /BlockEncoding exch def
	   /BlockCount BlockEncoding length def
	   save
	   F length dict F
	    { 1 index /FID eq { pop pop } { 2 index 3 1 roll put } ifelse }
	   forall dup /Encoding TempEncoding put
	   /* exch definefont
	   /F exch def
	   /F24 F 24 scalefont def

	   DoTitle (, unencoded characters) show
	   0 BlockCount 1 sub DoBlock
	   F 10 scalefont setfont
	   36 2.0 Inch moveto 0 BlockCount 64 min 1 sub DoLine
	   BlockCount 64 gt
	    { 36 1.5 Inch moveto 64 BlockCount 128 min 1 sub DoLine
	    }
	   if
	   showpage
	   restore
	 } for

   }
  if

} def

% Do font samples
% /Times-Roman DoFont			% Test (less than a minute)
% /Hershey-Gothic-English DoFont	% Test (8 minutes)

% Do a complete catalog
% FontDirectory {pop DoFont} forall	% All fonts (quite a long time)