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%D \module
%D [ file=x-res-20,
%D version=2006.08.20,
%D title=\CONTEXT\ Style File,
%D subtitle=Figure Lists,
%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.
%D For the beginning we have used \TEXUTIL\ to hels us deal with
%D graphics whose dimensions could not be determines and|/|or to
%D provide placeholder info for graphics that were not available.
%D Much of this functionality is now moved to \RLXTOOLS\ and
%D therefore it makes sense to reimplement the code that deals with
%D producing an overview of grapghics as well. At the same time we
%D move some \TEX\ code from \TEXEXEC\ to here.
%D
%D Because the show commands are not used in real documents, but
%D only for special purposed, it does not harm that this
%D functionality is now part of a module. We no longer use the
%D parsing code in \TEXUTIL, but rely on \IMAGEMAGICK's
%D identify functionility.
%D
%D At the end of the file we kept the old code from \type {core-fig}.
\unprotect
\startXMLmapping[rlx:list]
\defineXMLprocess
[rl:identification]
\defineXMLenvironment
[rl:identify] [name=]
{\bgroup\ignorespaces}
{\removeunwantedspaces\doRLhandlegraphic\egroup}
\defineXMLsave[rl:size]
\defineXMLsave[rl:path]
\defineXMLsave[rl:width]
\defineXMLsave[rl:height]
\stopXMLmapping
\def\showexternalfigures
{\dosingleempty\doshowexternalfigures}
\let\doRLhandlegraphic\relax
\let\doRLstartgraphics\relax
\let\doRLstopgraphics \relax
\let\RLfigurewidth \empty
\let\RLfigureheight\empty
\let\RLfiguresize \empty
\let\RLfigurefile \empty
\def\doRLpresetgraphic
{\edef\RLfigurewidth {\the\dimexpr \XMLflush{rl:width}\relax}%
\edef\RLfigureheight{\the\dimexpr \XMLflush{rl:height}\relax}%
\edef\RLfiguresize {\the\numexpr0\XMLflush{rl:size}\relax}%
\edef\RLfigurefile {\XMLpar{rl:identify}{name}{unknown}}}
\def\doshowexternalfigures[#1]%
{\bgroup
\dontcomplain
\setupcolors[\c!state=\v!start]% to prevent mps color conversion
\getparameters[\??ex][\c!file=rlxtools.rli,\c!alternative=a,\c!offset=\!!zeropoint,\c!size=,#1]%
\getvalue{\strippedcsname\doRLhandlegraphic\@@exalternative}%
\startXMLmapping[rlx:list]%
\startXMLignore
\doRLstartgraphics
\processXMLfilegrouped{\@@exfile}% \readjobfile\@@exfile\donothing\donothing
\doRLstopgraphics
\stopXMLignore
\stopXMLmapping
\egroup}
\def\doRLhandlegraphica
{\def\doRLhandlegraphic
{\doRLpresetgraphic
\getvalue{\e!start\v!figure\e!text}[\v!left,\v!none][]
{}
{\hbox
{\externalfigure[\RLfigurefile][\c!frame=\v!on,\c!width=6cm,\c!size=\@@exsize]%
\quad
\framed[\c!width=\figurewidth,\c!height=\figureheight]{}%
\quad}}%
{\hbox{\tt\tfa\setstrut\strut\expanded{\asciistr{\RLfigurefile}}}}%
\blank
\tfx
\starttabulate[|l|l|]
\NC width \EQ \RLfigurewidth \NC \NR
\NC height \EQ \RLfigureheight \NC \NR
\NC size \EQ \RLfiguresize \NC \NR
\stoptabulate
\getvalue{\e!stop\v!figure\e!text}}}
\def\doRLhandlegraphicb
{\def\doRLhandlegraphic
{\dontleavehmode
\vbox
{\doRLpresetgraphic
\hsize\dimexpr.2\hsize-.8em\relax
\cbox{\externalfigure[\RLfigurefile][\c!frame=\v!on,\c!factor=\v!max,\c!width=\hsize,\c!size=\@@exsize]}%
\vskip.5\lineheight
\midaligned{\tttf\RLfigurefile}}%
\vadjust{\vskip.2\lineheight}%
\quad\allowbreak}}
\def\doRLhandlegraphicc
{\def\doRLhandlegraphic
{\doRLpresetgraphic
\pagefigure[\RLfigurefile]}}
\def\doRLhandlegraphicd % this one builds a dimension file for metapost/metafun
{\def\doRLstartgraphics
{\immediate\openout\scratchwrite=mpfigs.mp\relax
\immediate\write\scratchwrite{\letterpercent\space graphic dimension file for metapost/metafun}}%
\def\doRLstopgraphics
{\immediate\closeout\scratchwrite}%
\def\doRLhandlegraphic
{\doRLpresetgraphic
\immediate\write\scratchwrite{registerfigure("\RLfigurefile",\RLfigurewidth,\RLfigureheight);}}}
% \showexternalfigures[alternative=b]
\protect \endinput
%D Old code:
\def\doshowexternalfigures[#1]%
{\bgroup
\setupcolors[\c!state=\v!start]% to prevent mps color conversion
\getparameters[\??ex][\c!alternative=a,\c!offset=\!!zeropoint,\c!size=,#1]%
\getvalue{\strippedcsname\showexternalfigure\@@exalternative}%
\egroup}
\def\showexternalfigures
{\dosingleempty\doshowexternalfigures}
\def\showexternalfigurea
{\bgroup
\dontcomplain
\def\presetfigure[##1][##2]%
{\getvalue{\e!start\v!figure\e!text}[\v!left,\v!none][]
{}
{\hbox
{\externalfigure[##1][\c!frame=\v!on,\c!width=6cm,\c!size=\@@exsize][##2]%
\tfskip
\framed[\c!width=\figurewidth,\c!height=\figureheight]{}}}%
{\tt\tfa\expanded{\asciistr{##1}}}%
\blank
\tfx
\def\docommand####1%
{\beforesplitstring####1\at=\to\asciia
\aftersplitstring ####1\at=\to\asciib
\defconvertedcommand\asciib\asciib
\doifsomething\asciib
{\hsmash{\hbox to .75em{\asciia\hss}: \asciib}\endgraf}}%
\processcommalist[##2]\docommand
\strut
\endgraf
\getvalue{\e!stop\v!figure\e!text}}%
\pushendofline
\readjobfile\@@exfile\donothing\donothing
\popendofline
\egroup}
\def\showexternalfigureb % instelbaar maken
{\bgroup
\def\total{5}%
\globalletempty\allfigures
\doglobal\newcounter\figurecounter
\dontcomplain
\def\docommand##1{##1&}%
\def\figurecaptions%
{\crcr
\noalign{\nobreak\vskip.5em}%
\@EA\globalprocesscommalist\@EA[\allfigures]\docommand
\globalletempty\allfigures
\crcr
\noalign{\vskip1em\goodbreak}}%
\def\presetfigure[##1][##2]%
{\vbox
{\divide\hsize \total
\advance\hsize -1em
\externalfigure
[##1]
[\c!frame=\v!on,\c!factor=\v!max,\c!width=\hsize,\c!size=\@@exsize][##2]}%
\doglobal\addtocommalist{##1}\allfigures
%\getvalue{\s!figurepreset}%
\doglobal\increment\figurecounter
\ifnum\figurecounter=\total
\doglobal\newcounter\figurecounter
\def\next{\figurecaptions}%
\else
\def\next{&}%
\fi
\next}%
\pushendofline
\tabskip\zeropoint \!!plus 1fill
\halign to \hsize
{&\hss##\hss\cr\readjobfile\@@exfile\donothing\donothing\crcr
\figurecaptions}
\popendofline
\egroup}
\def\showexternalfigurec
{\bgroup
\def\presetfigure[##1][##2]{\expanded{\pagefigure[##1][\c!size=\@@exsize]}}% else loop
\pushendofline
\readjobfile\@@exfile\donothing\donothing
\popendofline
\egroup}
\def\showexternalfigured % to be documented; this one builds a dimension file for
{\bgroup % metapost/metafun
\immediate\openout\scratchwrite=mpfigs.mp
\def\presetfigure[##1][##2]%
{\getfiguredimensionsonly[##1]% \pagefigure[##1]%
\immediate\write\scratchwrite
{registerfigure("##1",\figurewidth,\figureheight);}}
\pushendofline
\readjobfile\@@exfile\donothing\donothing
\popendofline
\immediate\closeout\scratchwrite
\egroup}
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