caption.ps

GhostScript的源代码

%!
%    Copyright (C) 1995 Aladdin Enterprises.  All rights reserved.
% 
% This file is part of Aladdin Ghostscript.
% 
% Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND.  No author
% or distributor accepts any responsibility for the consequences of using it,
% or for whether it serves any particular purpose or works at all, unless he
% or she says so in writing.  Refer to the Aladdin Ghostscript Free Public
% License (the "License") for full details.
% 
% Every copy of Aladdin Ghostscript must include a copy of the License,
% normally in a plain ASCII text file named PUBLIC.  The License grants you
% the right to copy, modify and redistribute Aladdin Ghostscript, but only
% under certain conditions described in the License.  Among other things, the
% License requires that the copyright notice and this notice be preserved on
% all copies.

% $Id: caption.ps $
% Add a "caption" to the bottom of each page.
/captionsize 20 def
/caption
 { /Helvetica //captionsize selectfont
   (Printed by Aladdin's XXYYZZ) show
   /Symbol //captionsize selectfont
   (\324) show		% trademarkserif
   /Helvetica //captionsize selectfont
   ( product) show
 } bind def

10 dict begin
gsave
  initgraphics
  clippath pathbbox
  pop exch 36 add /by exch def
		% We can't use stringwidth, so we have to show and measure.
  gsave
    0 0 0 0 rectclip
    0 0 moveto caption currentpoint pop /bw exch def
  grestore
  add bw sub 2 div /bx exch def
		% We don't have the font bbox available, so we guess.
  /bh captionsize 1.05 mul def
grestore
/showcaption
 { gsave
     initgraphics
     //bx 9 sub //by 9 sub //bw 18 add //bh 18 add
     1 setgray 4 copy rectfill 0 setgray 1.5 setlinewidth rectstroke
     //bx //by moveto //caption exec
   grestore
 } bind def
<< /EndPage [
   /showcaption load /exec load
   currentpagedevice /EndPage get /exec load
   ] cvx
>> setpagedevice
end