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%D \module
%D [ file=page-app, % from meta-fig
%D version=1998.01.15,
%D title=\CONTEXT\ Core Macros,
%D subtitle=Independent page building,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%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 Page Macros / Applications}
%D The fitting page code is moved from \type {meta-fig} to
%D here.
\unprotect
\def\dostartfittingpage[#1][#2]%
{\pagina % this is kind of tricky! there can be preceding page refs
\bgroup % resulting in a zero height page; test fig-make !
\dontcomplain
\setbox\scratchbox\hbox
\bgroup
\getparameters[#1][#2]%
\schaal[\c!schaal=\getvalue{#1\c!schaal}]\bgroup\localframed[#1]\bgroup}
\definepapersize
[\??fp\s!dummy]
[\c!breedte=\fittingwd,
\c!hoogte=\fittinght]
\definelayout
[\??fp\s!dummy]
[\c!breedte=\fittingwd,\c!hoogte=\fittinght,\c!plaats=\v!midden,
\c!kopwit=\!!zeropoint,\c!rugwit=\!!zeropoint,
\c!snijwit=\!!zeropoint,\c!bodemwit=\!!zeropoint,
\c!tekstafstand=\!!zeropoint,\c!regels=0,\c!grid=\v!nee,
\c!hoofd=\!!zeropoint,\c!voet=\!!zeropoint]
\def\dostopfittingpage
{\egroup\egroup\egroup
\edef\fittingwd{\the\wd\scratchbox}%
\edef\fittinght{\the\ht\scratchbox}%
\startlocallayout
\ifdim\fittinght<\lineheight
% write status : too small
\setbox\scratchbox\vbox to \lineheight{\vss\box\scratchbox\vss}%
\edef\fittinght{\the\lineheight}%
\fi
\setuppapersize
[\??fp\s!dummy][\??fp\s!dummy]%
\setuplayout
[\??fp\s!dummy]%
\startmakeup[\v!standaard][\c!tekststatus=\v!leeg,\c!dubbelzijdig=\v!nee,\c!pagina=]%
\centerbox{\box\scratchbox}%
\stopmakeup
\stoplocallayout
\egroup}
%D \TEX\ pages (for \METAPOST\ pages, see \type {meta-fig}):
\presetlocalframed[\??tg]
\def\setupTEXpage
{\dodoubleargument\getparameters[\??tg]}
\def\startTEXpage
{\dosingleempty\dostartTEXpage}
\def\dostartTEXpage[#1]%
{\dostartfittingpage[\??tg][#1]\gobblespacetokens}
\def\stopTEXpage
{\removelastspace
\dostopfittingpage}
\setupTEXpage
[\c!schaal=1000,
\c!strut=\v!nee,
\c!uitlijnen=\v!normaal, % needed, else problems !
\c!offset=\v!overlay,
\c!breedte=\v!passend,
\c!hoogte=\v!passend,
\c!kader=\v!uit]
%D Application pages (for an example, see \type {m-pstric}):
\def\@@texapp{texapp}
\def\@@texdim{texdim}
\def\saveTEXapplication#1#2%
{\immediate\openout\scratchwrite=\bufferprefix\@@texdim.tmp
\immediate\write\scratchwrite{\dimen#1=\the\ht\scratchbox}%
\immediate\write\scratchwrite{\dimen#2=\the\wd\scratchbox}%
\immediate\closeout\scratchwrite}
\def\restoreTEXapplication
{\readlocfile{\bufferprefix\@@texdim.tmp}\donothing\donothing}
\def\startTEXapplication
{\dosingleempty\dostartTEXapplication}
\long\def\dostartTEXapplication[#1]#2#3\stopTEXapplication
{\bgroup
\bgroup
\let\f!temporaryextension\c!tex
\setbuffer[\@@texapp]%
\starttext
#2% preamble
\startTEXpage[#1]%
\setbox\scratchbox\hbox{#3}%
\saveTEXapplication02% dimensions
\box\scratchbox
\stopTEXpage
\stoptext
\endbuffer
\egroup
\doifelse\jobsuffix{dvi}\donetrue\donefalse
\executesystemcommand{texexec \bufferprefix\@@texapp.tex --once --batch}%
\ifdone % eps
\executesystemcommand{dvips -E* -o \@@texapp.eps \@@texapp}%
\else % pdf
\executesystemcommand{dvips \bufferprefix\@@texapp}%
\executesystemcommand{ps2pdf \bufferprefix\@@texapp.ps \bufferprefix\@@texapp.pdf}%
\fi
\restoreTEXapplication % dimensions
\setbox\scratchbox\hbox
{\expanded{\externalfigure
[\bufferprefix\@@texapp.\ifdone eps\else pdf\fi]
[\c!object=\v!nee]}}%
\setbox\scratchbox\hbox
{\lower\ht\scratchbox\hbox{\raise\dimen2\box\scratchbox}}%
\wd\scratchbox\dimen0
\ht\scratchbox\dimen2
\dp\scratchbox\zeropoint
\box\scratchbox
\egroup}
\protect \endinput
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