%D \module
%D   [       file=lpdf-pdx,
%D        version=2010.02.11,
%D          title=\CONTEXT\ Backend Macros,
%D       subtitle=PDF-X,
%D         author=Peter Rolf \& Hans Hagen,
%D           date=\currentdate,
%D      copyright=\PRAGMA] % and peter
%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 Backend Macros / PDF-X}

\unprotect

%  declare default color space
% all device based entries of the same CS are mapped to the defined ICCprofile then;
%   i.e.  /DeviceRGB --> /ICCBased RGB profile
% TODO: allow multiple default profiles (one per CS)
%
% external ICC profile dictionary (PDF/X-4p and PDF/X-5p)
%
% - ProfileName (not file name!)
% - URLs (array containing at least one URL); the keyword FSA is wrong!
% - CheckSum (16byte MD5 hash)
% - ProfileCS (GRAY,RGB,CMYK)
% - ICCVersion (bytes 8..11 from the header of the ICC profile, as a hex string)

\registerctxluafile{lpdf-pdx} {}

% \def\embedICCprofile#1#2% colorspace, name
%   {\ctxlua{backends.codeinjections.addiccprofile("#1","#2")}}

\def\douseinternalICCprofile[#1]%
  {\getparameters[\??ic][colorspace=,filename=,#1]%
   \ctxlua{backends.codeinjections.useinternalICCprofile(
     "\@@iccolorspace","\@@icfilename")}}

% create a dictionary for an external ICC profile (PDF/X-4p and PDF/X-5pg only)
% the referenced ICC profile is not embedded

\def\douseexternalICCprofile[#1]%
  {\getparameters[\??ic][colorspace=,name=,url=,checksum=,version=,#1]%
   \ctxlua{backends.codeinjections.useexternalICCprofile(
     "\@@iccolorspace","\@@icname","\@@icurl","\@@icchecksum","\@@icversion")}}

% use an ICC profile as default colorspace for all device dependend colors;
% all device based entries of the same CS are mapped to the defined ICCprofile then;
% i.e. /DeviceRGB --> /ICCBased RGB profile always embed the profile!

\def\douseICCdefaultprofile[#1]%
  {\getparameters[\??ic][colorspace=,filename=,#1]%
   \ctxlua{backends.codeinjections.useICCdefaultprofile(
     "\@@iccolorspace","\@@icfilename")}}

% embedding rules for output intent profile differ for the PDF/X versions

\def\dousePDFXoutputintent[#1]%
  {\getparameters[\??ic][reference=\v!yes,outputcondition=,info=,id=,name=,#1]%
   \ctxlua{backends.codeinjections.usePDFXoutputintent(
     "\@@icid","\@@icname","\@@icreference","\@@icoutputcondition","\@@icinfo")}}

\def\useinternalICCprofile{\dosingleempty\douseinternalICCprofile}
\def\useexternalICCprofile{\dosingleempty\douseexternalICCprofile}
\def\useICCdefaultprofile {\dosingleempty\douseICCdefaultprofile }
\def\usePDFXoutputintent  {\dosingleempty\dousePDFXoutputintent  }

\protect \endinput