%D \module
%D   [       file=grph-epd,
%D        version=2010.07.29,
%D          title=\CONTEXT\ Graphic Macros,
%D       subtitle=Merging Goodies,
%D         author=Hans Hagen,
%D           date=\currentdate,
%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.

\writestatus{loading}{ConTeXt Graphic Macros / Merging Goodies}

\unprotect

\registerctxluafile{grph-epd}{autosuffix}

% hm, this one is globally overloaded

\mutable\lettonothing\mergedfigurereference

\defineoverlay[system:graphics:epdf][\directsetup{system:graphics:epdf}]

\startsetups system:graphics:epdf
    \clf_figure_mergegoodies{\externalfigureparameter\c!interaction}%
    \reference[\mergedfigurereference]{}% todo: dest area
\stopsetups

\defineframed
  [system_graphics_epdf]
  [\c!frame=\v!off,
   \c!offset=\v!overlay,
   \c!background={\v!foreground,system:graphics:epdf}]

\protected\def\grph_epdf_add_overlay
  {\global\setbox\foundexternalfigure\vbox\bgroup % vpack ?
     \system_graphics_epdf{\box\foundexternalfigure}%
   \egroup}

\appendtoks
    \iflocation
      \iftok{\figurefiletype}{pdf}% a lua call
        \ifcstok{\externalfigureparameter\c!interaction}\v!none\else
          \grph_epdf_add_overlay
        \fi
      \fi
    \fi
\to \externalfigurepostprocessors

\defineframed
  [epdfstampsymbol]
  [\c!foregroundstyle=\v!mono,
   \c!background=\c!color,
   \c!rulethickness=.125\exheight,
   \c!offset=.250\exheight,
   \c!backgroundcolor=lightgray,   % can be adapted before first usage
   \c!framecolor=darkgray,         % can be adapted before first usage
   \c!corner=\v!round]

\definesymbol[Stamped]             [\epdfstampsymbol{Stamped}]

\definesymbol[Approved]            [\epdfstampsymbol{Approved}]
\definesymbol[Experimental]        [\epdfstampsymbol{Experimental}]
\definesymbol[NotApproved]         [\epdfstampsymbol{NotApproved}]
\definesymbol[AsIs]                [\epdfstampsymbol{AsIs}]
\definesymbol[Expired]             [\epdfstampsymbol{Expired}]
\definesymbol[NotForPublicRelease] [\epdfstampsymbol{NotForPublicRelease}]
\definesymbol[Confidential]        [\epdfstampsymbol{Confidential}]
\definesymbol[Final]               [\epdfstampsymbol{Final}]
\definesymbol[Sold]                [\epdfstampsymbol{Sold}]
\definesymbol[Departmental]        [\epdfstampsymbol{Departmental}]
\definesymbol[ForComment]          [\epdfstampsymbol{ForComment}]
\definesymbol[TopSecret]           [\epdfstampsymbol{TopSecret}]
\definesymbol[Draft]               [\epdfstampsymbol{Draft}]
\definesymbol[ForPublicRelease]    [\epdfstampsymbol{ForPublicRelease}]

%D For team Ramkumar:

\defineframed
  [epdftextfield]
  [\c!frame=\v!off,
   \c!offset=\v!overlay,
   \c!foregroundstyle=\epdffieldfont,
   \c!align={\v!middle,\v!lohi}]

\defineframed
  [epdflinefield]
  [\c!frame=\v!off,
   \c!offset=\v!overlay,
   \c!foregroundstyle=\epdffieldfont,
   \c!align={\v!middle,\v!lohi}]

\definefont
  [epdffieldfont]
  [\directframedparameter{epdf:font}*\s!default\space @ \directframedparameter{epdf:size}]

\protect \endinput

% /Properties << /xxxx 22 0 R >>
% 21 0 obj << /Type /OCG /Name (xxxx) >> endobj
% 22 0 obj << /OCGs [ 21 0 R ] /Type /OCMD >> endobj

% \def\setepdflayer#1#2#3#4#5#6% x y w h (in bp) 0/1 destination
%   {\setlayer
%     [epdflinks]
%     [\c!x=#1bp,\c!y=#1\s!bp,\c!preset=\v!leftbottom]
%     {\button
%        [\c!width=#3\s!bp,\c!height=#4\s!bp,\c!offset=\v!overlay,\c!frame=\ifnum#5=1 on\else\v!off]%
%        {}[#6]}}

% \def\setepdflayer#1#2#3#4#5#6% x y w h (in bp) 0/1 destination
%   {\setlayer
%     [epdflinks]
%     [\c!x=#1bp,\c!y=#1\s!bp,\c!preset=\v!leftbottom]
%     {\gotowdhtbox{#3\s!bp}{#4\s!bp}[#6]}}