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%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}{1.001}
\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
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