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%D \module
%D [ file=page-app, % from meta-fig
%D version=1998.01.15,
%D title=\CONTEXT\ Page Macros,
%D subtitle=Independent page building,
%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 Page Macros / Applications}
%D The fitting page code is moved from \type {meta-fig} to
%D here.
\unprotect
\definepapersize
[\??fp\s!dummy]
[\c!width=\fittingwd,
\c!height=\fittinght]
\definelayout
[\??fp\s!dummy]
[\c!width=\fittingwd,\c!height=\fittinght,\c!location=\v!middle,
\c!topspace=\!!zeropoint,\c!backspace=\!!zeropoint,
\c!cutspace=\!!zeropoint,\c!bottomspace=\!!zeropoint,
\c!textdistance=\!!zeropoint,\c!lines=0,\c!grid=\v!no,
\c!top=\!!zeropoint,\c!bottom=\!!zeropoint,
\c!margin=\!!zeropoint,\c!edge=\!!zeropoint,
\c!leftmargin=\!!zeropoint,\c!leftedge=\!!zeropoint,
\c!rightmargin=\!!zeropoint,\c!rightedge=\!!zeropoint,
\c!header=\!!zeropoint,\c!footer=\!!zeropoint]
\def\dostartfittingpage[#1][#2]%
{\page % this is kind of tricky! there can be preceding page refs
\autostarttext
\bgroup % resulting in a zero height page; test fig-make !
\def\currentfittingpage{#1}%
\dontcomplain
% runs under current page regime, i.e. page variables passed to mp
\getparameters[\currentfittingpage][\c!paper=,#2]% auto or size or nothing
\setbox\scratchbox\hbox
\bgroup
% needed later \getparameters[\currentfittingpage][\c!paper=,#2]% auto or size or nothing
\doifvalue{\currentfittingpage\c!margin}\v!page % undocumented
{\offsetbox
[\c!leftoffset=\backspace,
\c!rightoffset=\cutspace,
\c!topoffset=\topspace,
\c!bottomoffset=\bottomspace]\hbox}%
\bgroup
\scale[\c!scale=\getvalue{\currentfittingpage\c!scale}]%
\bgroup\localframed[\currentfittingpage]%
\bgroup}
\def\dostopfittingpage
{\egroup % localframed
\egroup % scale
\egroup % offsetbox
\egroup % scratchbox
\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
\let\checkcurrentlayout\relax % else interference with odd/even layout
\processaction
[\getvalue{\currentfittingpage\c!paper}]
[ \v!auto=>\let\fittingpapersize\printpapersize,
\s!unknown=>\let\fittingpapersize\commalistelement,
\s!default=>\def\fittingpapersize{\??fp\s!dummy}]%
\expanded{\setuppapersize[\??fp\s!dummy][\fittingpapersize]}%
\definelayout
[\v!page]%
[\c!location=\v!middle,
\c!width=\fittingwd,
\c!height=\fittinght]%
\setuplayout
[\v!page]%
\startmakeup[\v!standard][\c!textstate=\v!empty,\c!doublesided=\v!no,\c!page=]%
\centerbox{\box\scratchbox}%
\stopmakeup
\stoplocallayout
\egroup
\autostoptext}
%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!scale=1000,
\c!strut=\v!no,
\c!align=\v!normal, % needed, else problems !
\c!offset=\v!overlay,
\c!width=\v!fit,
\c!height=\v!fit,
\c!frame=\v!off]
%D For Mojca:
%D
%D \starttyping
%D \startTEXstream \chapter{Bla} Hello world!\crlf Hello world! \stopTEXstream
%D \startTEXpage \chapter{Bla} Hello world!\crlf Hello world! \stopTEXpage
%D \stoptyping
%D
%D maybe I should support stream=yes in framed.
\def\startTEXstream
{\dosingleempty\dostartTEXstream}
\def\dostartTEXstream[#1]%
{\page
\defineoutputstream[tex]%
\enableoutputstream[tex]%
\def\stopTEXstream
{\disableoutputstream
\startTEXpage
\outputstreamunvbox[tex]%
\stopTEXpage}}
%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]%
\topskip\zeropoint
\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}%
% \executesystemcommand{texmfstart pstopdf \bufferprefix\@@texapp.ps \bufferprefix\@@texapp.pdf}%
\fi
\restoreTEXapplication % dimensions
\doifelse\jobsuffix{dvi}\donetrue\donefalse
\setbox\scratchbox\hbox
{\expanded{\externalfigure
[\bufferprefix\@@texapp.\ifdone eps\else pdf\fi]
[\c!object=\v!no]}}%
\setbox\scratchbox\hbox
{\lower\ht\scratchbox\hbox{\raise\dimen2\box\scratchbox}}%
\wd\scratchbox\dimen0
\ht\scratchbox\dimen2
\dp\scratchbox\zeropoint
\box\scratchbox
\egroup}
%D \macros
%D {startpagefigure}
%D
%D \starttyping
%D \starttext \pagefigure[two.1] \stoptext
%D \stoptyping
\def\startpagefigure
{\dodoubleempty\dostartpagefigure}
\def\dostartpagefigure[#1][#2]%
{\bgroup
\getparameters[\??ex][\c!offset=\v!overlay,#2]%
\startTEXpage[\c!offset=\@@exoffset]%
\externalfigure[#1][#2]\ignorespaces} % so we can put some text below the graphic
\def\stoppagefigure
{\stopTEXpage
\egroup}
\def\pagefigure
{\dodoubleempty\dopagefigure}
\def\dopagefigure[#1][#2]%
{\dostartpagefigure[#1][#2]\stoppagefigure}
\protect \endinput
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