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+%D \module
+%D [ file=page-imp, % was: core-pag,
+%D version=1998.01.15,
+%D title=\CONTEXT\ Page Macros,
+%D subtitle=Pagebody Building (Imposition),
+%D author=Hans Hagen & Willi Egger,
+%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.
+
+% much of this can more to run time loading !
+
+\writestatus{loading}{ConTeXt Page Macros / Pagebody Building}
+
+\unprotect
+
+% sizing bug:
+%
+% \setuppapersize[A4][A4,landscape] \setuparranging[2UP] \showframe
+%
+% \starttext \dorecurse{10}{\input tufte \par} \stoptext
+
+% to be moved code:
+
+\newif\ifclipprintbox \clipprintboxtrue
+%newif\ifclippagebox \clippageboxtrue
+
+\def\clippedprintbox#1#2% can be made more efficient, see other clipper
+ {\ifclipprintbox
+ \!!widthc \pagebackgroundoffset
+ \!!widtha \dimexpr\paperwidth + \!!widthc\relax
+ \!!heighta\dimexpr\paperheight+2\!!widthc\relax
+ \setbox#2\vbox to \paperheight{\vfill\box#2}%
+ \ht#2\paperheight
+ \wd#2\paperwidth
+ \setbox#2\vbox
+ {\framed
+ [\c!offset=\!!widthc,\c!strut=\v!no,\c!frame=\v!off]
+ {\box#2}}%
+ \setbox#2\hbox to \paperwidth
+ {\ifcase#1\relax
+ \!!widthb\zeropoint
+ \hskip-\!!widthc
+ \else
+ \!!widthb\!!widthc
+ \fi
+ \lower\!!widthc\hbox
+ {\clip
+ [\c!width=\!!widtha,\c!height=\!!heighta,
+ \c!hoffset=\!!widthb,\c!voffset=\zeropoint]
+ {\box#2}}}%
+ \wd#2\paperwidth
+ \ht#2\paperheight
+ \fi
+ \box#2\relax}
+
+\let\clippagebox \gobbleoneargument
+\let\clipprintbox\gobbleoneargument
+
+% \setuppagenumbering[alternative=doublesided]
+% \setupcolors[state=start]
+% \setuppapersize[A4][A4,oversized]
+% \setuplayout[location=middle,clipoffset=5mm]
+% \setupbackgrounds
+% [page]
+% [frame=on,rulethickness=1mm,
+% backgroundoffset=10mm,background=color,backgroundcolor=red]
+% \starttext \dorecurse{10}{\input tufte \par} \stoptext
+
+\def\clippagebox#1%
+ {\ifdim\@@lyclipoffset>\zeropoint
+ \!!widtha \wd#1%
+ \!!heighta\ht#1%
+ \!!deptha \dp#1%
+ \setbox#1\hbox
+ {\!!widthb \@@lyclipoffset
+ \advance\!!heighta\dimexpr\!!deptha+2\!!widthb\relax
+ \advance\!!widtha \!!widthb
+ \doifbothsides
+ {\advance\!!widtha\!!widthb \!!widthc-\!!widthb \hskip\!!widthc}%
+ {\!!widthc\zeropoint}
+ {\!!widthc-\!!widthb \hskip\!!widthc}%
+ \lower\!!widthb\hbox
+ {\clip
+ [\c!hoffset=\!!widthc,
+ \c!voffset=-\!!widthb,
+ \c!width=\!!widtha,
+ \c!height=\!!heighta]%
+ {\box#1}}}%
+ \wd#1\!!widtha
+ \ht#1\!!heighta
+ \dp#1\!!deptha
+ \fi}
+
+%D \macros
+%D {starttextdata}
+%D
+%D This is a user macro (appending to every last shipout is not
+%D really user friendly.
+
+\newtoks \collectedtextdata
+
+\long\def\starttextdata#1\stoptextdata
+ {\doglobal\appendtoks#1\to\collectedtextdata}
+
+\def\flushtextdata
+ {\vsmashed{\the\collectedtextdata}% all dimensions zero
+ \global\collectedtextdata\emptytoks
+ \globallet\flushtextdata\donothing}
+
+\prependtoks \flushtextdata \to \everylastshipout
+
+% moved code:
+
+% \def\myshipout#1%
+% {\beforeshipout % voor de pagebody dus !
+% \dontshowcomposition
+% \ifarrangingpages\@EA\actualarrange\else\@EA\actualshipout\fi
+% {\thisisrealpage\realfolio#1}%
+% \gotonextrealpage
+% \aftershipout}
+
+\def\installpagehandler#1#2% % a handler takes one argument: something to be boxed
+ {\setvalue{\??pp:\c!method:#1}{#2}} % and shipped out (don't depend on the exact package)
+
+\installpagehandler\v!normal
+ {\ifarrangingpages\expandafter\actualarrange\else\expandafter\actualshipout\fi}
+
+\def\myshipout#1%
+ {\beforeshipout % voor de pagebody dus !
+ \dontshowcomposition
+ \executeifdefined{\??pp:\c!method:\@@ppmethod}\gobbleoneargument{\thisisrealpage\realfolio#1}%
+ \gotonextrealpage
+ \aftershipout}
+
+\newbox\postponedcontent
+
+\def\flushatshipout
+ {\dowithnextbox
+ {\global\setbox\postponedcontent\hbox to \zeropoint
+ {%\hskip-\maxdimen % niet hier, gaat mis in acrobat (clipt)
+ \unhbox\postponedcontent\unhbox\nextbox}%
+ \ht\postponedcontent\zeropoint
+ \dp\postponedcontent\zeropoint
+ \wd\postponedcontent\zeropoint}%
+ \hbox}
+
+% \starttypen
+% \def\pagestoshipout{1,3,5}
+% \stoptypen
+
+\newcount\shippedoutpages
+
+\let\pagestoshipout\empty % {1,3,6}
+\chardef\whichpagetoshipout=0 % 0=all 1=odd 2=even
+
+\ifx\finalizeshipoutbox\undefined \let\finalizeshipoutbox\firstofoneargument \fi
+
+\def\actualshipout#1%
+ {\global\advance\shippedoutpages\plusone
+ % this is not resource safe!
+ \ifx\pagestoshipout\empty
+ \ifcase\whichpagetoshipout\relax
+ \donetrue
+ \or % 1
+ \ifodd\shippedoutpages\relax\donetrue\else\donefalse\fi
+ \or % 2
+ \ifodd\shippedoutpages\relax\donefalse\else\donetrue\fi
+ \else
+ \donetrue
+ \fi
+ \else % testen, aangepast / expanded nodig ?
+ \expanded{\doifinsetelse{\the\shippedoutpages}{\pagestoshipout}}%
+ \donetrue\donefalse
+ \fi
+ \ifdone
+ \shipout\vbox
+ {\forgetall
+ \offinterlineskip
+ \dontcomplain
+ \scratchdimen-1in
+ \vskip\scratchdimen
+ \hskip\scratchdimen
+ \hbox % \setbox0=\box.. is nicer
+ {\setbox0\hbox{\finalizeshipoutbox{#1}}% just in case there are objects there, hook for testing
+ \setbox\scratchbox\hbox
+ {% before the main one !
+ \ifcase\realfolio \or
+ \the\everyfirstshipout
+ \global\everyfirstshipout\emptytoks
+ \fi
+ % the main one
+ \the\everyshipout\relax
+ % always last (and after the main one)
+ \ifnum\realpageno=\lastpage\relax
+ \the\everylastshipout
+ \global\everylastshipout\emptytoks
+ \fi}%
+ \smashbox\scratchbox
+ \box\scratchbox
+ \box\postponedcontent % evt ver naar links !
+ \box0}}%
+ \else
+ \message
+ {[\ifarrangingpages arranged \fi page
+ \ifarrangingpages\the\arrangeno\else\the\realpageno\fi\normalspace
+ not flushed]}%
+ \setbox0\hbox{#1}%
+ \deadcycles\zerocount
+ \fi}
+
+\def\actualarrange#1%
+ {\setbox0\hbox{\thisisrealpage{\realfolio}#1}%
+ \pusharrangedpage0%
+ \deadcycles\zerocount}
+
+%D We need a couple of boxes for duplex printing \unknown
+
+\newbox\arrangedpageA \newbox\arrangedpageB
+
+%D \unknown\ and some for simulating big sheets.
+
+\newbox\arrangedpageC \newbox\arrangedpageD
+\newbox\arrangedpageE \newbox\arrangedpageF
+\newbox\arrangedpageG \newbox\arrangedpageH
+
+\newif\ifswaparranged
+\newif\ifnegatearranged
+\newif\ifmirrorarranged
+\newif\ifdoublearranged
+
+\newif\ifarrangingdisabled
+
+\def\arrangedrotationO{0}
+\def\arrangedrotationE{0}
+
+\newcounter\arrangedpageN
+\newcounter\arrangedpageM
+
+\chardef\arrangedpageT=1
+\chardef\arrangedpageX=1
+\chardef\arrangedpageY=1
+
+\def\calculatepaperoffsets#1%
+ {\scratchdimen\getvalue{\??pp#1\c!offset}%
+ \divide\scratchdimen \arrangedpageX
+ \global\advance\paperwidth -2\scratchdimen
+ \scratchdimen\getvalue{\??pp#1\c!offset}%
+ \divide\scratchdimen \arrangedpageY
+ \global\advance\paperheight-2\scratchdimen}
+
+\newconditional\arrangedbackgroundokay % more ifs -> conditionals
+
+\def\setuparranging[#1]%
+ {\ifarrangingdisabled \else
+ \doifelse{#1}\v!disable
+ {\global\arrangingdisabledtrue}
+ {\global\arrangingdisabledfalse}%
+ \global\arrangingpagestrue
+ \global\negatearrangedfalse
+ \global\mirrorarrangedfalse
+ \global\doublearrangedfalse
+ \gdef\arrangedrotationO{0}%
+ \gdef\arrangedrotationE{180}%
+ \processallactionsinset
+ [#1]
+ [ \v!mirrored=>\global\mirrorarrangedtrue,
+ \v!doublesided=>\global\doublearrangedtrue,
+ \v!negative=>\global\negatearrangedtrue,
+ \v!rotated=>\gdef\arrangedrotationO {90}\gdef\arrangedrotationE{270},
+ 90=>\gdef\arrangedrotationO {90}\gdef\arrangedrotationE{270},
+ 180=>\gdef\arrangedrotationO{180}\gdef\arrangedrotationE{0},
+ 270=>\gdef\arrangedrotationO{270}\gdef\arrangedrotationE{90},
+ \s!reset=>\global\arrangingpagesfalse,
+ \v!background=>\global\settrue\arrangedbackgroundokay,
+ \s!unknown=>\checkinstalledpagearrangement\commalistelement]%
+ % no \s!default=> we can have aaa,,bbb
+ \ifx\handlearrangedpage\undefined
+ \global\arrangingpagesfalse
+ \fi
+ \doifcommonelse{#1}{90,270,\v!rotated}
+ {\swapmacros\horizontalcutmarks\verticalcutmarks}{}% ugly solution
+ \setuppapersize
+ \ifarrangingpages
+ \abortutilitygeneration
+ \fi
+ \fi}
+
+\def\installpagearrangement #1 %
+ {\setgvalue{\??pp\??pp#1}}
+
+\def\checkinstalledpagearrangement#1% can be empty: aaa,,bbb
+ {\executeifdefined{\??pp\??pp#1}\donothing}
+
+\def\dosetuparrangement#1#2#3#4#5#6#7#8%
+ {\global\chardef\arrangedpageX #1%
+ \global\chardef\arrangedpageY #2%
+ \global\chardef\arrangedpageT #3%
+ \global\chardef\horizontalcutmarks#4%
+ \global\chardef\verticalcutmarks #5%
+ \global\let \pusharrangedpage #6%
+ \global\let \poparrangedpages #7%
+ \global\let \handlearrangedpage#8}
+
+\installpagearrangement {\v!normal}
+ {\global\arrangingpagesfalse}
+
+\installpagearrangement 2*16
+ {\dosetuparrangement{4}{4}{16}{5}{5}%
+ \pusharrangedpageTHIRTYTWO\poparrangedpagesAB\relax}
+
+\installpagearrangement 2*8
+ {\dosetuparrangement{4}{2}{8}{5}{3}%
+ \pusharrangedpageSIXTEEN\poparrangedpagesAB\relax}
+
+\installpagearrangement 2*4
+ {\dosetuparrangement{2}{2}{4}{3}{3}%
+ \pusharrangedpageEIGHT\poparrangedpagesAB\relax}
+
+\installpagearrangement 2*2
+ {\dosetuparrangement{2}{1}{2}{3}{2}%
+ \pusharrangedpageFOURA\poparrangedpagesAB\relax}
+
+\installpagearrangement 2**2
+ {\dosetuparrangement{2}{1}{2}{3}{2}%
+ \pusharrangedpageFOURB\poparrangedpagesAB\relax}
+
+\installpagearrangement 2SIDE
+ {\dosetuparrangement{2}{1}{2}{3}{2}%
+ \pusharrangedpageSIDETOP\poparrangedpagesTWO\handlearrangedpageSIDE}
+
+\installpagearrangement 2TOP
+ {\dosetuparrangement{1}{2}{2}{2}{3}%
+ \pusharrangedpageSIDETOP\poparrangedpagesTWO\handlearrangedpageTOP}
+
+\installpagearrangement 2UP
+ {\dosetuparrangement{2}{1}{4}{3}{2}%
+ \pusharrangedpageTWO\poparrangedpagesTWO\handlearrangedpageTWOUP}
+
+\installpagearrangement 2DOWN
+ {\dosetuparrangement{1}{2}{4}{2}{3}%
+ \pusharrangedpageTWO\poparrangedpagesTWO\handlearrangedpageTWODOWN}
+
+\installpagearrangement 2*4*2 % one defined by Willy Egger:
+ {\dosetuparrangement{2}{2}{4}{3}{3}%
+ \pusharrangedpageSIXTEENTWO\poparrangedpagesAtoD\relax}
+
+\installpagearrangement 2*2*4 % onother one of Willy Egger
+ {\dosetuparrangement{2}{1}{8}{3}{2}%
+ \pusharrangedpageSIXTEENFOUR\poparrangedpagesAtoH\relax}
+
+\installpagearrangement 2TOPSIDE
+ {\dosetuparrangement{1}{2}{4}{2}{3}%
+ \pusharrangedpageTWOTOPSIDE\poparrangedpagesTWOTOPSIDE\handlearrangedpageTOP}
+
+% \def\filluparrangedpages % beware: \realpageno is 1 ahead
+% {\ifarrangingpages
+% \scratchcounter-\realpageno
+% \divide\scratchcounter \arrangedpageT
+% \multiply\scratchcounter \arrangedpageT
+% \advance\scratchcounter \realpageno
+% \advance\scratchcounter \minusone
+% \dorecurse\scratchcounter{\noheaderandfooterlines\ejectdummypage}%
+% \fi}
+
+\def\filluparrangedpages % beware: \realpageno is 1 ahead
+ {\ifarrangingpages
+ \scratchcounter\numexpr\realpageno-\plusone\relax
+ \dosetmodulo\scratchcounter\arrangedpageT\scratchcounter
+ \ifcase\scratchcounter\else
+ \advance\scratchcounter \plusone
+ \dostepwiserecurse\scratchcounter\arrangedpageT\plusone
+ {\noheaderandfooterlines\ejectdummypage}%
+ \fi
+ \fi}
+
+\def\handlearrangedpageXandY#1#2#3#4#5%
+ {\global\setbox#5\hbox to \arrangedpageX\paperwidth
+ {\setbox\scratchbox\vbox to \arrangedpageY\paperheight
+ {\forgetall
+ \offinterlineskip
+ \dontcomplain
+ \vskip#4\paperheight
+ \hskip#3\paperwidth
+ \dorotatebox{\ifcase#2 0\else180\fi}\hbox{\box#1}%
+ \vfill}%
+ \wd\scratchbox\zeropoint
+ \box\scratchbox\box#5\hss}}
+
+\def\gotonextarrangepage
+ {\global\advance\arrangeno \plusone
+ \def\pagecutmarksymbol{\the\arrangeno}}
+
+\def\outputarrangedbox#1%
+ {\bgroup
+ \gotonextarrangepage
+ \ifnum\arrangedrotationO\arrangedrotationE>\zerocount
+ \setbox#1\vbox
+ {\ifdoublearranged
+ \ifodd\arrangeno
+ \dorotatebox\arrangedrotationO\hbox{\box#1}%
+ \else
+ \dorotatebox\arrangedrotationE\hbox{\box#1}%
+ \fi
+ \else
+ \dorotatebox\arrangedrotationO\hbox{\box#1}%
+ \fi}%
+ \fi
+ \ifmirrorarranged
+ \setbox#1\vbox{\domirrorbox\vbox{\box#1}}%
+ \fi
+ \ifnegatearranged
+ \negatecolorbox{#1}%
+ \fi
+ \finishpagebox#1%
+ \ifconditional\arrangedbackgroundokay\addprintbackground#1\fi
+ \actualshipout{\box#1}%
+ \egroup}
+
+%D The format file can be 16K smaller when we postpone the
+%D real arrangments. Some day ...
+
+% TOP
+
+% 32/16/8/4/SIDE
+
+\def\poparrangedpagesAB
+ {\ifnum\arrangedpageN>\zerocount
+ \dontcomplain
+ \paperwidth\arrangedpageX\paperwidth
+ \paperheight\arrangedpageY\paperheight
+ \outputarrangedbox\arrangedpageA
+ \outputarrangedbox\arrangedpageB
+ \doglobal\newcounter\arrangedpageN
+ \fi}
+
+\def\pusharrangedpageTHIRTYTWO#1% taco's challenge
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}033\arrangedpageA % 1
+ \or \handlearrangedpageXandY{#1}003\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}100\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}130\arrangedpageA % 4
+ \or \handlearrangedpageXandY{#1}100\arrangedpageA % 5
+ \or \handlearrangedpageXandY{#1}130\arrangedpageB % 6
+ \or \handlearrangedpageXandY{#1}033\arrangedpageB % 7
+ \or \handlearrangedpageXandY{#1}003\arrangedpageA % 8
+ \or \handlearrangedpageXandY{#1}102\arrangedpageA % 9
+ \or \handlearrangedpageXandY{#1}132\arrangedpageB % 10
+ \or \handlearrangedpageXandY{#1}031\arrangedpageB % 11
+ \or \handlearrangedpageXandY{#1}001\arrangedpageA % 12
+ \or \handlearrangedpageXandY{#1}031\arrangedpageA % 13
+ \or \handlearrangedpageXandY{#1}001\arrangedpageB % 14
+ \or \handlearrangedpageXandY{#1}102\arrangedpageB % 15
+ \or \handlearrangedpageXandY{#1}132\arrangedpageA % 16
+ \or \handlearrangedpageXandY{#1}122\arrangedpageA % 17
+ \or \handlearrangedpageXandY{#1}112\arrangedpageB % 18
+ \or \handlearrangedpageXandY{#1}011\arrangedpageB % 19
+ \or \handlearrangedpageXandY{#1}021\arrangedpageA % 20
+ \or \handlearrangedpageXandY{#1}011\arrangedpageA % 21
+ \or \handlearrangedpageXandY{#1}021\arrangedpageB % 22
+ \or \handlearrangedpageXandY{#1}122\arrangedpageB % 23
+ \or \handlearrangedpageXandY{#1}112\arrangedpageA % 24
+ \or \handlearrangedpageXandY{#1}013\arrangedpageA % 25
+ \or \handlearrangedpageXandY{#1}023\arrangedpageB % 26
+ \or \handlearrangedpageXandY{#1}120\arrangedpageB % 27
+ \or \handlearrangedpageXandY{#1}110\arrangedpageA % 28
+ \or \handlearrangedpageXandY{#1}120\arrangedpageA % 29
+ \or \handlearrangedpageXandY{#1}110\arrangedpageB % 30
+ \or \handlearrangedpageXandY{#1}013\arrangedpageB % 31
+ \or \handlearrangedpageXandY{#1}023\arrangedpageA % 32
+ \poparrangedpages
+ \fi}
+
+\def\pusharrangedpageSIXTEEN#1% changed to match the official way of doing
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}031\arrangedpageA % 1
+ \or \handlearrangedpageXandY{#1}001\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}031\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}001\arrangedpageA % 4
+ \or \handlearrangedpageXandY{#1}100\arrangedpageA % 5
+ \or \handlearrangedpageXandY{#1}130\arrangedpageB % 6
+ \or \handlearrangedpageXandY{#1}100\arrangedpageB % 7
+ \or \handlearrangedpageXandY{#1}130\arrangedpageA % 8
+ \or \handlearrangedpageXandY{#1}120\arrangedpageA % 9
+ \or \handlearrangedpageXandY{#1}110\arrangedpageB % 10
+ \or \handlearrangedpageXandY{#1}120\arrangedpageB % 11
+ \or \handlearrangedpageXandY{#1}110\arrangedpageA % 12
+ \or \handlearrangedpageXandY{#1}011\arrangedpageA % 13
+ \or \handlearrangedpageXandY{#1}021\arrangedpageB % 14
+ \or \handlearrangedpageXandY{#1}011\arrangedpageB % 15
+ \or \handlearrangedpageXandY{#1}021\arrangedpageA % 16
+ \poparrangedpages
+ \fi}
+
+\def\pusharrangedpageEIGHT#1% changed to match the official way of doing
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}011\arrangedpageA % 1
+ \or \handlearrangedpageXandY{#1}001\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}100\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}110\arrangedpageA % 4
+ \or \handlearrangedpageXandY{#1}100\arrangedpageA % 5
+ \or \handlearrangedpageXandY{#1}110\arrangedpageB % 6
+ \or \handlearrangedpageXandY{#1}011\arrangedpageB % 7
+ \or \handlearrangedpageXandY{#1}001\arrangedpageA % 8
+ \poparrangedpages
+ \fi}
+
+\def\pusharrangedpageFOURA{\pusharrangedpageFOURdo01}
+\def\pusharrangedpageFOURB{\pusharrangedpageFOURdo10}
+
+\def\pusharrangedpageFOURdo#1#2#3%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#3}010\arrangedpageA % 1
+ \or \handlearrangedpageXandY{#3}0{#1}0\arrangedpageB % 2/3 not {1}
+ \or \handlearrangedpageXandY{#3}0{#2}0\arrangedpageB % 3/2 not {1}
+ \or \handlearrangedpageXandY{#3}000\arrangedpageA % 4
+ \poparrangedpages
+ \fi}
+
+\def\pusharrangedpageSIDETOP#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 1
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \poparrangedpages
+ \fi}
+
+\def\handlearrangedpageSIDE
+ {\wd\arrangedpageA\paperwidth
+ \wd\arrangedpageB\paperwidth
+ \global\setbox\arrangedpageA\hbox
+ {\box\arrangedpageA\box\arrangedpageB}%
+ \ht\arrangedpageA\paperheight}
+
+\def\handlearrangedpageTOP
+ {\ht\arrangedpageA\paperheight
+ \ht\arrangedpageB\paperheight
+ \global\setbox\arrangedpageA\vbox
+ {\forgetall\offinterlineskip\vskip\paperheight
+ \box\arrangedpageA\box\arrangedpageB}%
+ \global\setbox\arrangedpageB\box\scratchbox} % ?
+
+% 2UP/2DOWN / 1pt prevents overflow
+
+\def\splitoffarrangedpagesTWO
+ {\splittopskip\zeropoint
+ \global\setbox\arrangedpageA\vsplit\arrangedpageB to \onepoint
+ \scratchdimen\dimexpr\ht\arrangedpageB-\onepoint\relax
+ \ifdim\scratchdimen>\onepoint
+ \setbox\scratchbox\vsplit\arrangedpageB to \scratchdimen
+ \fi}
+
+\def\handlearrangedpageTWOUP
+ {\splitoffarrangedpagesTWO
+ \ifswaparranged
+ \global\setbox\arrangedpageA\hbox
+ {\clippedprintbox0\arrangedpageA
+ \clippedprintbox1\arrangedpageB}%
+ \swaparrangedfalse
+ \else
+ \global\setbox\arrangedpageA\hbox
+ {\clippedprintbox0\arrangedpageB
+ \clippedprintbox1\arrangedpageA}%
+ \swaparrangedtrue
+ \fi
+ \ht\arrangedpageA\paperheight
+ \global\setbox\arrangedpageB\box\scratchbox}
+
+\def\handlearrangedpageTWODOWN
+ {\splitoffarrangedpagesTWO
+ \ht\arrangedpageA\paperheight
+ \ht\arrangedpageB\paperheight
+ \ifswaparranged
+ \global\setbox\arrangedpageA\vbox
+ {\forgetall\offinterlineskip\vskip\paperheight
+ \box\arrangedpageA\box\arrangedpageB}%
+ \swaparrangedfalse
+ \else
+ \global\setbox\arrangedpageA\vbox
+ {\forgetall\offinterlineskip\vskip\paperheight
+ \box\arrangedpageB\box\arrangedpageA}%
+ \swaparrangedtrue
+ \fi
+ \global\setbox\arrangedpageB\box\scratchbox}
+
+\def\poparrangedpagesTWO
+ {\ifnum\arrangedpageN>\zerocount
+ \dontcomplain
+ \swaparrangedfalse
+ \doloop
+ {\handlearrangedpage
+ \bgroup
+ \paperwidth\arrangedpageX\paperwidth
+ \paperheight\arrangedpageY\paperheight
+ \ht\arrangedpageA\paperheight
+ \wd\arrangedpageA\paperwidth
+ \outputarrangedbox\arrangedpageA
+ \egroup
+ \ifdim\ht\arrangedpageB=\zeropoint
+ \exitloop
+ \fi}%
+ \doglobal\newcounter\arrangedpageN
+ \fi}
+
+\def\pusharrangedpageTWO#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \global\setbox\arrangedpageB\vbox
+ {\forgetall
+ \offinterlineskip
+ \unvbox\arrangedpageB
+ \allowbreak
+ \ht#1\onepoint
+ \dp#1\zeropoint
+ \vbox{\box#1}}}
+
+\def\poparrangedpagesTWOTOPSIDE
+ {\ifnum\arrangedpageN>\zerocount
+ \bgroup
+ \gdef\arrangedpageN{2}\poparrangedpagesTWO
+ \let\arrangedpageA\arrangedpageC
+ \let\arrangedpageB\arrangedpageD
+ \gdef\arrangedpageN{2}\poparrangedpagesTWO
+ \doglobal\newcounter\arrangedpageN
+ \egroup
+ \fi}
+
+\def\pusharrangedpageTWOTOPSIDE#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 1
+ \or \handlearrangedpageXandY{#1}000\arrangedpageC % 2
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 1
+ \or \handlearrangedpageXandY{#1}000\arrangedpageD % 2
+ \poparrangedpages
+ \fi}
+
+%D Willy Egger's sheet simulations:
+
+\def\poparrangedpagesAtoH
+ {\ifnum\arrangedpageN>\zerocount
+ \dontcomplain
+ \paperwidth\arrangedpageX\paperwidth
+ \paperheight\arrangedpageY\paperheight
+ \outputarrangedbox\arrangedpageA
+ \outputarrangedbox\arrangedpageB
+ \outputarrangedbox\arrangedpageC
+ \outputarrangedbox\arrangedpageD
+ \outputarrangedbox\arrangedpageE
+ \outputarrangedbox\arrangedpageF
+ \outputarrangedbox\arrangedpageG
+ \outputarrangedbox\arrangedpageH
+ \doglobal\newcounter\arrangedpageN
+ \fi}
+
+% to arrange 16 pages on 2 sheets to form one booklet
+
+\def\poparrangedpagesAtoD
+ {\ifnum\arrangedpageN>\zerocount
+ \dontcomplain
+ \paperwidth\arrangedpageX\paperwidth
+ \paperheight\arrangedpageY\paperheight
+ \outputarrangedbox\arrangedpageA
+ \outputarrangedbox\arrangedpageB
+ \outputarrangedbox\arrangedpageC
+ \outputarrangedbox\arrangedpageD
+ \doglobal\newcounter\arrangedpageN
+ \fi}
+
+% to arrange 16 pages on 4 sheets to form one booklet
+
+\def\pusharrangedpageSIXTEENFOUR#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 1
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}010\arrangedpageC % 3
+ \or \handlearrangedpageXandY{#1}000\arrangedpageD % 4
+ \or \handlearrangedpageXandY{#1}010\arrangedpageE % 5
+ \or \handlearrangedpageXandY{#1}000\arrangedpageF % 6
+ \or \handlearrangedpageXandY{#1}010\arrangedpageG % 7
+ \or \handlearrangedpageXandY{#1}000\arrangedpageH % 8
+ \or \handlearrangedpageXandY{#1}010\arrangedpageH % 9
+ \or \handlearrangedpageXandY{#1}000\arrangedpageG % 10
+ \or \handlearrangedpageXandY{#1}010\arrangedpageF % 11
+ \or \handlearrangedpageXandY{#1}000\arrangedpageE % 12
+ \or \handlearrangedpageXandY{#1}010\arrangedpageD % 13
+ \or \handlearrangedpageXandY{#1}000\arrangedpageC % 14
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 15
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 16
+ \poparrangedpages
+ \fi}
+
+% to arrange 16 pages on 2 sheets to form one booklet
+
+\def\pusharrangedpageSIXTEENTWO#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}011\arrangedpageA % 1
+ \or \handlearrangedpageXandY{#1}001\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}011\arrangedpageC % 3
+ \or \handlearrangedpageXandY{#1}001\arrangedpageD % 4
+ \or \handlearrangedpageXandY{#1}100\arrangedpageD % 5
+ \or \handlearrangedpageXandY{#1}110\arrangedpageC % 6
+ \or \handlearrangedpageXandY{#1}100\arrangedpageB % 7
+ \or \handlearrangedpageXandY{#1}110\arrangedpageA % 8
+ \or \handlearrangedpageXandY{#1}100\arrangedpageA % 9
+ \or \handlearrangedpageXandY{#1}110\arrangedpageB % 10
+ \or \handlearrangedpageXandY{#1}100\arrangedpageC % 11
+ \or \handlearrangedpageXandY{#1}110\arrangedpageD % 12
+ \or \handlearrangedpageXandY{#1}011\arrangedpageD % 13
+ \or \handlearrangedpageXandY{#1}001\arrangedpageC % 14
+ \or \handlearrangedpageXandY{#1}011\arrangedpageB % 15
+ \or \handlearrangedpageXandY{#1}001\arrangedpageA % 16
+ \poparrangedpages
+ \fi}
+
+% % handy for stickers etc, this way we can treat them as page
+%
+% \setuppapersize [XY][A4]
+% \setuppaper [topspace=5mm,backspace=5mm,dx=1mm,dy=1mm,nx=2,ny=6]
+% \setuplayout [page] [topspace=5mm,backspace=5mm]
+% \setuplayout [page]
+% \setuplayout [location=middle]
+% \setuparranging [XY]
+% \showframe
+%
+% \starttext \dorecurse{30}{test \recurselevel \page} \stoptext
+
+\def\pusharrangedpageXY#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \doglobal\increment\arrangedpageM
+ \global\setbox\arrangedpageB\hbox
+ \ifdim\@@ppwidth>\zeropoint to \@@ppwidth \fi
+ {\ifvoid\arrangedpageB\else
+ \unhbox\arrangedpageB
+ \ifdim\@@ppdx>\zeropoint \else \hss\fi
+ \hskip\@@ppdx
+ \ifdim\@@ppdx>\zeropoint \else \hss\fi
+ \fi
+ \box#1}%
+ \ifnum\arrangedpageM<\arrangedpageX\else
+ \global\setbox\arrangedpageA\vbox
+ \ifdim\@@ppheight>\zeropoint to \@@ppheight \fi
+ {\offinterlineskip
+ \ifvoid\arrangedpageA\else
+ \unvbox\arrangedpageA
+ \ifdim\@@ppdy>\zeropoint \else \vss\fi
+ \vskip\@@ppdy
+ \ifdim\@@ppdy>\zeropoint \else \vss\fi
+ \fi
+ \box\arrangedpageB}%
+ \doglobal\newcounter\arrangedpageM
+ \fi
+ \ifnum\arrangedpageN<\arrangedpageT\else
+ \poparrangedpages
+ \fi}
+
+\def\poparrangedpagesXY
+ {\ifnum\arrangedpageN>\zerocount
+ \dontcomplain
+ \paperwidth\arrangedpageX\paperwidth
+ \paperheight \arrangedpageY\paperheight
+ \outputarrangedbox\arrangedpageA
+ \doglobal\newcounter\arrangedpageN
+ \doglobal\newcounter\arrangedpageM
+ \fi}
+
+\installpagearrangement XY
+ {\dosetuparrangement\@@ppnx\@@ppny\@@ppxy\!!zerocount\!!zerocount
+ \pusharrangedpageXY\poparrangedpagesXY\relax}
+
+%D A crazy definition, don't guess who pushed me for the landscape option.
+
+\definepapersize
+ [XY]
+ [\c!height=\dimexpr\dimexpr\@@ppheight-\numexpr\@@ppny-1\relax\dimexpr\@@ppdy\relax\relax/\@@ppny\relax,
+ \c!width =\dimexpr\dimexpr\@@ppwidth -\numexpr\@@ppnx-1\relax\dimexpr\@@ppdx\relax\relax/\@@ppnx\relax]
+
+\setuppaper
+ [\c!width =\dimexpr\printpaperwidth -2\dimexpr\@@ppbackspace\relax\relax,
+ \c!height=\dimexpr\printpaperheight-2\dimexpr\@@pptopspace \relax\relax]
+
+%D Might be used if a printer is printing from a rol or creating mini-books from A4:
+%D This section has 16 pages. The folding scheme is first a Z-fold and at the end
+%D a final fold in the spine.
+%D Coding: [2*8*Z]
+
+\installpagearrangement 2*8*Z
+ {\dosetuparrangement{2}{4}{8}{3}{5}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageSIXTEENZ\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageSIXTEENZ#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 1
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}101\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}111\arrangedpageA % 4
+ \or \handlearrangedpageXandY{#1}012\arrangedpageA % 5
+ \or \handlearrangedpageXandY{#1}002\arrangedpageB % 6
+ \or \handlearrangedpageXandY{#1}103\arrangedpageB % 7
+ \or \handlearrangedpageXandY{#1}113\arrangedpageA % 8
+ \or \handlearrangedpageXandY{#1}103\arrangedpageA % 9
+ \or \handlearrangedpageXandY{#1}113\arrangedpageB % 10
+ \or \handlearrangedpageXandY{#1}012\arrangedpageB % 11
+ \or \handlearrangedpageXandY{#1}002\arrangedpageA % 12
+ \or \handlearrangedpageXandY{#1}101\arrangedpageA % 13
+ \or \handlearrangedpageXandY{#1}111\arrangedpageB % 14
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 15
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 16
+ \poparrangedpages
+ \fi}
+
+%D Another Z-folded section with 12 pages
+%D Coding: [2*6*Z]
+
+\installpagearrangement 2*6*Z
+ {\dosetuparrangement{2}{3}{6}{3}{4}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageTWELVEZ\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageTWELVEZ#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 1: rotation (0=upright),x (0=first column),y (0=first row)
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}101\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}111\arrangedpageA % 4
+ \or \handlearrangedpageXandY{#1}012\arrangedpageA % 5
+ \or \handlearrangedpageXandY{#1}002\arrangedpageB % 6
+ \or \handlearrangedpageXandY{#1}012\arrangedpageB % 7
+ \or \handlearrangedpageXandY{#1}002\arrangedpageA % 8
+ \or \handlearrangedpageXandY{#1}101\arrangedpageA % 9
+ \or \handlearrangedpageXandY{#1}111\arrangedpageB % 10
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 11
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 12
+ \poparrangedpages
+ \fi}
+
+%D For Heinz' special greeting cards folding. This scheme is also used for the PocketDiary (module):
+%D Coding: [1*8]
+
+\installpagearrangement 1*8
+ {\dosetuparrangement{4}{2}{8}{5}{3} % X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageEIGHTSINGLESIDEDFOLDED\poparrangedpagesTWO\relax}
+
+\def\pusharrangedpageEIGHTSINGLESIDEDFOLDED#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}020\arrangedpageA % 2
+ \or \handlearrangedpageXandY{#1}030\arrangedpageA % 3
+ \or \handlearrangedpageXandY{#1}131\arrangedpageA % 4
+ \or \handlearrangedpageXandY{#1}121\arrangedpageA % 5
+ \or \handlearrangedpageXandY{#1}111\arrangedpageA % 6
+ \or \handlearrangedpageXandY{#1}101\arrangedpageA % 7
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 8
+ \poparrangedpages
+ \fi}
+
+%D This is not a section. \CONTEXT\ places 4 pages on a sheet of paper, singlesided
+%D Coding: [1*4]
+
+\installpagearrangement 1*4
+ {\dosetuparrangement{2}{2}{4}{3}{3} % X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageFOURSINGLESIDEDFOLDED\poparrangedpagesTWO\relax}
+
+\def\pusharrangedpageFOURSINGLESIDEDFOLDED#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}100\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}001\arrangedpageA % 2
+ \or \handlearrangedpageXandY{#1}011\arrangedpageA % 3
+ \or \handlearrangedpageXandY{#1}110\arrangedpageA % 4
+ \poparrangedpages
+ \fi}
+
+%D This imposition scheme was requested by Hraban Ramm, by Willi Egger 21-07-2003
+%D Coding: [3SIDE]
+
+\installpagearrangement 3SIDE
+ {\dosetuparrangement{3}{1}{3}{4}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageTHREESIDE\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageTHREESIDE#1% Willi's approach
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 2
+ \or \handlearrangedpageXandY{#1}020\arrangedpageA % 3
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 4
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 5
+ \or \handlearrangedpageXandY{#1}020\arrangedpageB % 6
+ \poparrangedpages
+ \fi}
+
+%D FLYER in three parts and 6 pages 22-10-2010
+%D Coding: [TRYPTICHON]
+
+\installpagearrangement TRYPTICHON
+ {\dosetuparrangement{3}{1}{3}{4}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageFOLDERSIX\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageFOLDERSIX#1% Willi's approach
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}020\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}020\arrangedpageB % 4
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 5
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 6
+ \poparrangedpages
+ \fi}
+
+%D FLYER in Z-fold with 8 pages 22-01-2010
+%D Coding: [ZFLYER-8]
+
+\installpagearrangement ZFLYER-8
+ {\dosetuparrangement{4}{1}{4}{5}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageZFOLDEREIGHT\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageZFOLDEREIGHT#1% Willi's approach
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}030\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}020\arrangedpageB % 4
+ \or \handlearrangedpageXandY{#1}030\arrangedpageB % 5
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 6
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 7
+ \or \handlearrangedpageXandY{#1}020\arrangedpageA % 8
+ \poparrangedpages
+ \fi}
+
+%D FLYER in Z-fold with 10 pages 04-08-2010
+%D Coding: [ZFLYER-10]
+
+\installpagearrangement ZFLYER-10
+ {\dosetuparrangement{5}{1}{5}{6}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageZFLYERTEN\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageZFLYERTEN#1% Willi's approach
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}040\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}020\arrangedpageB % 4
+ \or \handlearrangedpageXandY{#1}030\arrangedpageB % 5
+ \or \handlearrangedpageXandY{#1}040\arrangedpageB % 6
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 7
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 8
+ \or \handlearrangedpageXandY{#1}020\arrangedpageA % 9
+ \or \handlearrangedpageXandY{#1}030\arrangedpageA % 10
+ \poparrangedpages
+ \fi}
+
+
+%D FLYER in Z-fold with 12 pages 04-08-2010
+%D Coding: [ZFLYER-12]
+
+\installpagearrangement ZFLYER-12
+ {\dosetuparrangement{6}{1}{6}{7}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageZFLYERTWELVE\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageZFLYERTWELVE#1% Willi's approach
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}050\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}020\arrangedpageB % 4
+ \or \handlearrangedpageXandY{#1}030\arrangedpageB % 5
+ \or \handlearrangedpageXandY{#1}040\arrangedpageB % 6
+ \or \handlearrangedpageXandY{#1}050\arrangedpageB % 7
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 8
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 9
+ \or \handlearrangedpageXandY{#1}020\arrangedpageA % 10
+ \or \handlearrangedpageXandY{#1}030\arrangedpageA % 11
+ \or \handlearrangedpageXandY{#1}040\arrangedpageA % 12
+ \poparrangedpages
+ \fi}
+
+%D FLYER folded as a map with 6 pages per side.
+%D Coding: [MAPFLYER-12]
+
+\installpagearrangement MAPFLYER-12
+ {\dosetuparrangement{3}{2}{6}{4}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageMFOLDERTWELVE\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageMFOLDERTWELVE#1% Willi's approach
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}020\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}001\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 4
+ \or \handlearrangedpageXandY{#1}011\arrangedpageB % 5
+ \or \handlearrangedpageXandY{#1}020\arrangedpageB % 6
+ \or \handlearrangedpageXandY{#1}021\arrangedpageB % 7
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 8
+ \or \handlearrangedpageXandY{#1}001\arrangedpageA % 9
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 10
+ \or \handlearrangedpageXandY{#1}011\arrangedpageA % 11
+ \or \handlearrangedpageXandY{#1}021\arrangedpageA % 12
+ \poparrangedpages
+ \fi}
+
+%D FLYER folded as double window with 4 pages per side.
+%D Coding: [DOUBLEWINDOW]
+
+\installpagearrangement DOUBLEWINDOW
+ {\dosetuparrangement{4}{1}{4}{5}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageDOUBLEWINDOWEIGHT\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageDOUBLEWINDOWEIGHT#1% Willi's approach
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}020\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}030\arrangedpageA % 2
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 4
+ \or \handlearrangedpageXandY{#1}020\arrangedpageB % 5
+ \or \handlearrangedpageXandY{#1}030\arrangedpageB % 6
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 7
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 8
+ \poparrangedpages
+ \fi}
+
+%D Imposition as requested by Jan Pohanka 26-08-2010, 4 pages, two verso, two recto,
+%D uneven pages upright and down, even pages top and rotated 180.
+%D Implementation with 2 pages for conference-name-display
+%D Coding: [1*2-Conference]
+
+\installpagearrangement 1*2-Conference
+ {\dosetuparrangement{1}{2}{4}{3}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageCONFERENCE2\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageCONFERENCE2#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}001\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}100\arrangedpageA % 2
+ \poparrangedpages
+ \fi}
+
+%D Implementation with 4 pages for conference-name-display
+%D Coding: [1*4-Conference]
+
+\installpagearrangement 1*4-Conference
+ {\dosetuparrangement{1}{2}{4}{3}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageCONFERENCE4\poparrangedpagesAB\relax}
+
+\def\pusharrangedpageCONFERENCE4#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}001\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}100\arrangedpageA % 2
+ \or \handlearrangedpageXandY{#1}011\arrangedpageB % 3
+ \or \handlearrangedpageXandY{#1}110\arrangedpageB % 4
+ \poparrangedpages
+ \fi}
+
+% There should be arrangements for section made of heavy and thick paper. i.e. the heavier the paper
+% the fewer pages per section:
+% Section with 8 pages put on to sheets of paper. Each sheet carries recto 2 and verso 2 pages.
+% Coding: [2*2*2]
+
+\installpagearrangement 2*2*2
+ {\dosetuparrangement{2}{1}{2}{3}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageEIGHTTWO\poparrangedpagesAtoD\relax}
+
+\def\pusharrangedpageEIGHTWO#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}010\arrangedpageC % 3
+ \or \handlearrangedpageXandY{#1}000\arrangedpageD % 4
+ \or \handlearrangedpageXandY{#1}010\arrangedpageD % 5
+ \or \handlearrangedpageXandY{#1}000\arrangedpageC % 6
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 7
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 8
+ \poparrangedpages
+ \fi}
+
+% Section with 12 pages, built from three sheets of paper.
+% Each sheet carries 2 pages recto and verso.
+% Coding: [2*2*3]
+
+\def\poparrangedpagesAtoF
+ {\ifnum\arrangedpageN>\zerocount
+ \paperwidth \arrangedpageX\paperwidth
+ \paperheight\arrangedpageY\paperheight
+ \outputarrangedbox\arrangedpageA
+ \outputarrangedbox\arrangedpageB
+ \outputarrangedbox\arrangedpageC
+ \outputarrangedbox\arrangedpageD
+ \outputarrangedbox\arrangedpageE
+ \outputarrangedbox\arrangedpageF
+ \global\arrangedpageN\zerocount
+ \fi}
+\installpagearrangement 2*2*3
+ {\dosetuparrangement{2}{1}{2}{3}{2}% X,Y,Total,hcutmarks,vcutmarks
+ \pusharrangedpageTWELVETWO\poparrangedpagesAtoD\relax}
+
+\def\pusharrangedpageTWELVETWO#1%
+ {\doglobal\increment\arrangedpageN
+ \reportarrangedpage\arrangedpageN
+ \ifcase\arrangedpageN
+ \or \handlearrangedpageXandY{#1}010\arrangedpageA % 1 rot,hskip,vskip
+ \or \handlearrangedpageXandY{#1}000\arrangedpageB % 2
+ \or \handlearrangedpageXandY{#1}010\arrangedpageC % 3
+ \or \handlearrangedpageXandY{#1}000\arrangedpageD % 4
+ \or \handlearrangedpageXandY{#1}010\arrangedpageE % 5
+ \or \handlearrangedpageXandY{#1}000\arrangedpageF % 6
+ \or \handlearrangedpageXandY{#1}010\arrangedpageF % 7
+ \or \handlearrangedpageXandY{#1}000\arrangedpageE % 8
+ \or \handlearrangedpageXandY{#1}010\arrangedpageD % 9
+ \or \handlearrangedpageXandY{#1}000\arrangedpageC % 10
+ \or \handlearrangedpageXandY{#1}010\arrangedpageB % 11
+ \or \handlearrangedpageXandY{#1}000\arrangedpageA % 12
+ \poparrangedpages
+ \fi}
+
+% \definepageshift[test][horizontal][10pt,20pt,30pt,40pt,50pt]
+% \definepageshift[test][vertical] [10pt,20pt,30pt,40pt,50pt]
+%
+% \setuppageshift[test]
+% \setuppageshift[test][test]
+% \setuppageshift[test][none]
+% \setuppageshift[none][test]
+% \setuppageshift[paper][test][test] % arrange only
+% \setuppageshift[paper][test] % arrange only
+% \setuppageshift[print][test][test]
+%
+% \showframe \dorecurse{100}{\input tufte \par}
+
+% #1=name #2=horizontal|vertical #3=shiftlist
+
+\def\definepageshift
+ {\dotripleargument\dodefinepageshift}
+
+\def\dodefinepageshift[#1][#2][#3]%
+ {\setvalue{\??pt#2:#1}{#3}}
+
+\letempty \hpageshifts \newcounter\nofhpageshifts
+\letempty \vpageshifts \newcounter\nofvpageshifts
+
+% \let\shiftprintpagebox\gobbleoneargument
+% \let\shiftpaperpagebox\gobbleoneargument
+
+\def\dogetpageshift#1#2#3% #1=\dimenx #2=\xpageshifts #3=\nofxpageshifts
+ {\ifx#2\empty
+ #1\zeropoint
+ \else
+ \doglobal\increment#3%
+ \getfromcommacommand[#2][#3]%
+ \ifx\commalistelement\empty
+ \globallet#3\!!plusone
+ \getfromcommacommand[#2][#3]%
+ \fi
+ \ifx\commalistelement\empty
+ #1\zeropoint
+ \else
+ #1=\commalistelement
+ \donetrue
+ \fi
+ \fi}
+
+\def\shiftpagebox#1%
+ {\donefalse
+ \dogetpageshift{\dimen0}\hpageshifts\nofhpageshifts
+ \dogetpageshift{\dimen2}\vpageshifts\nofvpageshifts
+ \ifdone % see also layout offsets, maybe \movebox
+ \edef\next{\wd#1\the\wd#1\ht#1\the\ht#1\dp#1\the\dp#1}%
+ \setbox#1\vbox % \forgetall already done
+ {\offinterlineskip\vskip\dimen2\hskip\dimen0\box#1}%
+ \next
+ \fi}
+
+\def\setuppageshift
+ {\dotripleempty\dosetuppageshift}
+
+\def\dosetuppageshift[#1][#2][#3]% page|paper horizontal vertical
+ {\ifthirdargument % paper=arrange
+ \let\hpageshifts\empty
+ \let\vpageshifts\empty
+ \let\shiftprintpagebox\gobbleoneargument
+ \let\shiftpaperpagebox\gobbleoneargument
+ \doifdefined{\??pt\v!horizontal:#2}
+ {\edef\hpageshifts{\getvalue{\??pt\v!horizontal:#2}}}%
+ \doifdefined{\??pt\v!vertical :#3}
+ {\edef\vpageshifts{\getvalue{\??pt\v!vertical :#3}}}%
+ \doif{#1}\v!page{\let\shiftprintpagebox\shiftpagebox}%
+ \doif{#1}\v!paper{\let\shiftpaperpagebox\shiftpagebox}%
+ \else\ifsecondargument
+ \doifinsetelse{#1}{\v!page,\v!paper}
+ {\setuppageshift[#1][#2][#2]}
+ {\setuppageshift[\v!page][#1][#2]}%
+ \else\iffirstargument
+ \setuppageshift[\v!page][#1][#1]%
+ \fi\fi\fi}
+
+%D One can (mis)use this mechanism, in close cooperation
+%D with \PDFTEX\ to arrange pages of already produced files.
+%D
+%D \starttyping
+%D \insertpages[file.pdf][1,3][n=30,width=18cm]
+%D \stoptyping
+%D
+%D The pages are inserted in the text area, and even pages
+%D are repositioned according to the width. In this example
+%D empty pages are added after page 1 and 3.
+%D
+%D Selecting pages can be accomplished by:
+%D
+%D \starttyping
+%D \filterpages[file.pdf][1,3,5][n=30,width=18cm]
+%D \stoptyping
+%D
+%D One may pass \type {odd} or \type {even} instead of a
+%D comma separated list. A third alternative is:
+%D
+%D \starttyping
+%D \copypages[file.pdf][n=30,scale=950]
+%D \stoptyping
+%D
+%D This macros inserts the page, according to the settings
+%D provided.
+
+\def\insertpages
+ {\dotripleempty\doinsertpages}
+
+\def\doinsertpages[#1][#2][#3]%
+ {\doifassignmentelse{#2}
+ {\dodoinsertpages[#1][][#2]}
+ {\dodoinsertpages[#1][#2][#3]}}
+
+\def\dodoinsertpages[#1][#2][#3]%
+ {\bgroup
+ \dontcomplain
+ \getfiguredimensions[#1]%
+ \getparameters[\??ip][\c!n=\noffigurepages,\c!width=\!!zeropoint,#3]%
+ \doifinset0{#2}{\null\page}%
+ \dorecurse\@@ipn
+ {\dofilterpage{#1}\recurselevel
+ \doifinset\recurselevel{#2}{\null\page}}%
+ \egroup}
+
+\def\filterpages
+ {\dotripleempty\dofilterpages}
+
+\def\dofilterpages[#1][#2][#3]% % \noffigurepages not yet supported
+ {\bgroup
+ \dontcomplain
+ \getfiguredimensions[#1]%
+ \getparameters[\??ip][\c!n=\noffigurepages,\c!width=\!!zeropoint,#3]%
+ \doifelse{#2}\v!even
+ {\dorecurse\@@ipn
+ {\ifodd\recurselevel\relax\else\dofilterpage{#1}\recurselevel\fi}}
+ {\doifelse{#2}\v!odd
+ {\dorecurse\@@ipn
+ {\ifodd\recurselevel\relax\dofilterpage{#1}\recurselevel\fi}}
+ {\def\dodocommand##1%
+ {\ifnum##1>\@@ipn\else\dofilterpage{#1}{##1}\fi}%
+ \def\docommand##1%
+ {\dowithrange{##1}\dodocommand}%
+ \processcommalist[#2]\docommand}}%
+ \egroup}
+
+\def\dofilterpage#1#2%
+ {\hbox to \textwidth
+ {\ifdoublesided\ifdim\@@ipwidth>\zeropoint\relax\ifodd\realpageno\else
+ \hfill
+ \def\dowithfigure{\hskip-\@@ipwidth}%
+ \fi\fi\fi
+ \setbox0\hbox
+ {\externalfigure[#1][\c!page=#2,\c!height=\textheight]}%
+ \wd0\zeropoint
+ \box0}
+ \page}
+
+\def\copypages
+ {\dodoubleempty\docopypages}
+
+\def\docopypages[#1][#2]%
+ {\bgroup
+ \getfiguredimensions[#1]%
+ \getparameters[\??ip]
+ [\c!n=\noffigurepages,
+ \c!marking=\v!off,
+ \c!scale=\!!thousand,
+ \c!offset=\!!zeropoint,
+ #2]%
+ \dorecurse\@@ipn
+ {\vbox to \textheight
+ {\hsize\textwidth
+ \scratchdimen\@@ipoffset
+ \centeredbox
+ {\doifelse\@@ipmarking\v!on\cuthbox\hbox
+ {\ifdim\scratchdimen>\zeropoint\relax
+ \advance\vsize -2\scratchdimen
+ \advance\hsize -2\scratchdimen
+ \externalfigure[#1][\c!page=\recurselevel,#2,\c!scale=,\c!factor=\v!max,\c!offset=\v!overlay]%
+ \else
+ \externalfigure[#1][\c!page=\recurselevel,#2,\c!offset=\v!overlay]%
+ \fi}}}
+ \page}
+ \egroup}
+
+%D \macros
+%D {combinepages}
+%D
+%D Yet another way of postprocessing is handles by \type
+%D {\combinepages}. This macro builds a matrix of pages from a
+%D file, for example:
+%D
+%D \starttyping
+%D \setuppapersize
+%D [A4][A4] % or [A4,landscape][A4,landscape]
+%D
+%D \setuplayout
+%D [header=0pt,footer=1cm,
+%D backspace=1cm,topspace=1cm,
+%D width=middle,height=middle]
+%D
+%D \setupfootertexts
+%D [presentation---\currentdate\space---\space\pagenumber]
+%D
+%D \starttext
+%D \combinepages[slides][nx=2,ny=3,frame=on]
+%D \stoptext
+%D \stoptyping
+%D
+%D One can influence the way the pages are combined. (This
+%D will be explained some time.)
+
+\def\combinepages
+ {\dodoubleempty\docombinepages}
+
+\def\docombinepages[#1][#2]% a=perpag b=free
+ {\bgroup
+ \dontcomplain
+ \getfiguredimensions[#1]%
+ \getparameters
+ [\??ip]
+ [\c!alternative=\v!a,
+ \c!n=\noffigurepages,\c!nx=2,\c!ny=2,\c!start=1,\c!stop=\!!maxcard,
+ \c!distance=\bodyfontsize,
+ \c!bottom=\vfill,\c!top=\vss,
+ \c!left=\hss,\c!right=\hss,
+ \c!before=\page,\c!after=\page,\c!inbetween=\blank,
+ \c!frame=,\c!background=,\c!backgroundcolor=,
+ #2]%
+ \def\@@ipname{#1}%
+ \@@ipbefore
+ \executeifdefined{\strippedcsname\docombinepages\@@ipalternative}\docombinepagesb
+ \@@ipafter
+ \egroup}
+
+\def\docombinepagesa
+ {\globallet\combinedpagescounter\@@ipstart
+ \doloop
+ {\vbox to \textheight
+ {\hsize\textwidth % ? ?
+ \scratchdimen\@@ipdistance
+ \!!widtha \dimexpr(\hsize-\@@ipnx\scratchdimen+\scratchdimen)/\@@ipnx\relax
+ \!!heighta\dimexpr(\vsize-\@@ipny\scratchdimen+\scratchdimen)/\@@ipny\relax
+ \dorecurse\@@ipny
+ {\hbox to \hsize
+ {\dorecurse\@@ipnx
+ {\vbox to \!!heighta
+ {\hsize\!!widtha
+ \vsize\!!heighta
+ \@@iptop
+ \hbox to \hsize
+ {\@@ipleft
+ \ifnum\combinedpagescounter>\@@ipstop\relax
+ \globallet\@@ipn\!!zerocount
+ \else\ifnum\combinedpagescounter>\@@ipn \else
+ \externalfigure[\@@ipname]
+ [\c!object=\v!no,
+ \c!page=\combinedpagescounter,
+ \c!factor=\v!max,
+ \c!background=\@@ipbackground,
+ \c!backgroundcolor=\@@ipbackgroundcolor,
+ \c!frame=\@@ipframe]%
+ \fi\fi
+ \@@ipright}
+ \@@ipbottom}%
+ \doglobal\increment\combinedpagescounter
+ \hfil}%
+ \hfilneg}
+ \vfil}%
+ \vfilneg}%
+ \page
+ \ifnum\combinedpagescounter>\@@ipn \exitloop\fi}}
+
+\def\docombinepagesc
+ {\globallet\combinedpagescounter\@@ipstart
+ \doloop
+ {\vbox to \textheight
+ {\hsize\textwidth % ? ?
+ \scratchdimen\@@ipdistance
+ \!!widtha \dimexpr(\hsize-\@@ipnx\scratchdimen+\scratchdimen)/\@@ipnx\relax
+ \!!heighta\dimexpr(\vsize-\@@ipny\scratchdimen+\scratchdimen)/\@@ipny\relax
+ \hbox to \hsize
+ {\dorecurse\@@ipnx
+ {\@@ipleft
+ \vbox to \textheight
+ {\hsize\!!widtha
+ {\dorecurse\@@ipny
+ {\@@iptop
+ \hbox to \hsize
+ {\vbox to \!!heighta
+ {\hsize\!!widtha
+ \vsize\!!heighta
+ \ifnum\combinedpagescounter>\@@ipstop\relax
+ \globallet\@@ipn\!!zerocount
+ \else\ifnum\combinedpagescounter>\@@ipn \else
+ \externalfigure[\@@ipname]
+ [\c!object=\v!no,
+ \c!page=\combinedpagescounter,
+ \c!factor=\v!max,
+ \c!background=\@@ipbackground,
+ \c!backgroundcolor=\@@ipbackgroundcolor,
+ \c!frame=\@@ipframe]%
+ \fi\fi}}
+ \doglobal\increment\combinedpagescounter
+ \@@ipbottom}%
+ \vfil}%
+ \vfilneg}
+ \hfil}%
+ \hfilneg}}
+ \page
+ \ifnum\combinedpagescounter>\@@ipn \exitloop\fi}}
+
+\let\docombinepageshorizontal\docombinepagesa
+\let\docombinepagesvertical \docombinepagesc
+
+\def\docombinepagesb
+ {\globallet\combinedpagescounter\@@ipstart
+ \doloop
+ {\startbaselinecorrection
+ \scratchdimen\@@ipdistance
+ \!!widtha\dimexpr(\hsize-\@@ipnx\scratchdimen+\scratchdimen)/\@@ipnx\relax
+ \hbox to \hsize
+ {\dorecurse\@@ipnx
+ {\doglobal\increment\combinedpagescounter
+ \ifnum\combinedpagescounter>\@@ipn \else
+ \expanded{\externalfigure[\@@ipname]
+ [\c!page=\combinedpagescounter,
+ \c!width=\the\!!widtha,% todo \freezedimenmacro
+ \c!background=\@@ipbackground,
+ \c!backgroundcolor=\@@ipbackgroundcolor,
+ \c!frame=\@@ipframe]}%
+ \hfill
+ \fi}\hfillneg}%
+ \stopbaselinecorrection
+ \ifnum\combinedpagescounter<\@@ipn\relax
+ \@@ipinbetween
+ \else
+ \exitloop
+ \fi}}
+
+%D \macros
+%D {setuppagecomment,startpagecomment}
+%D
+%D This command is not yet documented. Usage:
+%D
+%D \starttyping
+%D \setuppagecomment[state=start,location=right]
+%D
+%D \startpagecomment
+%D \input knuth
+%D \stoppagecomment
+%D \stoptyping
+
+\def\setuppagecomment
+ {\dosingleempty\dosetuppagecomment}
+
+\def\dosetuppagecomment[#1]%
+ {\getparameters[\??pc][#1]%
+ \doifelse\@@pcstate\v!start
+ {\doifinsetelse\@@pclocation{\v!bottom,\v!top}
+ {\setuppapersize[\c!left=\hskip\@@pcoffset]%
+ \edef\@@pcpaperheight{\the\dimexpr\paperheight+\@@pcoffset+\@@pcoffset+\@@pcdistance+\@@pcheight\relax}%
+ \edef\@@pcpaperwidth {\the\dimexpr\paperwidth+\@@pcoffset+\@@pcoffset\relax}%
+ \defineoverlay[\v!pagecomment][\placepagecommentTB]}
+ {\setuppapersize[\c!top=\vskip\@@pcoffset]%
+ \edef\@@pcpaperheight{\the\dimexpr\paperheight+\@@pcoffset+\@@pcoffset\relax}%
+ \edef\@@pcpaperwidth {\the\dimexpr\paperwidth+\@@pcoffset+\@@pcoffset+\@@pcdistance+\@@pcwidth\relax}%
+ \defineoverlay[\v!pagecomment][\placepagecommentLR]}%
+ \processaction
+ [\@@pclocation]
+ [ \v!bottom=>{\setuppapersize[\c!bottom =\vss,\c!top =\vskip\@@pcoffset]},
+ \v!top=>{\setuppapersize[\c!top =\vss,\c!bottom =\vskip\@@pcoffset]},
+ \v!left=>{\setuppapersize[\c!left =\hss,\c!right=\hskip\@@pcoffset]},
+ \v!right=>{\setuppapersize[\c!right=\hss,\c!left =\hskip\@@pcoffset]}]%
+ \definepapersize
+ [\v!pagecomment]
+ [\c!height=\@@pcpaperheight,
+ \c!width=\@@pcpaperwidth]%
+ \let\@@pcprintpapersize\printpapersize
+ \setuppapersize[\papersize][\v!pagecomment]%
+ \setupbackgrounds[\v!paper][\c!background=\v!pagecomment]}
+ {\doif\@@pcstate\v!stop % else initialization invokes backgrounds
+ {% this should be tested first
+ % \expanded{\setuppapersize[\papersize][\@@pcprintpapersize]}%
+ \setupbackgrounds[\v!paper][\c!background=]}}}
+
+\def\@@pcprintpapersize{\printpapersize}
+
+\def\placepagecommentTB
+ {\vbox to \printpaperheight
+ {\forgetall
+ \hsize\printpaperwidth
+ \vskip\@@pcoffset
+ \doifelse\@@pclocation\v!bottom{\vskip\dimexpr\paperheight+\@@pcdistance\relax}\vss
+ \hskip\@@pcoffset
+ \vbox to \@@pcheight
+ {\forgetall
+ \hsize\paperwidth
+ \ifpagecomment
+ \getbuffer[\v!pagecomment]%
+ \global\pagecommentfalse
+ \fi}%
+ \hfill
+ \doifelse\@@pclocation\v!bottom\vss{\vskip\dimexpr\paperheight+\@@pcdistance\relax}%
+ \vskip\@@pcoffset}}
+
+\def\placepagecommentLR
+ {\hbox to \printpaperwidth
+ {\hskip\@@pcoffset
+ \doifelse\@@pclocation\v!right{\hskip\paperwidth\hskip\@@pcdistance}\hss
+ \vbox to \printpaperheight
+ {\forgetall
+ \vskip\@@pcoffset
+ \hsize\@@pcwidth
+ \ifpagecomment
+ \getbuffer[\v!pagecomment]%
+ \global\pagecommentfalse
+ \fi
+ \vss}%
+ \doifelse\@@pclocation\v!right\hss{\hskip\paperwidth\hskip\@@pcdistance}%
+ \hskip\@@pcoffset}}
+
+\newif\ifpagecomment
+
+\setvalue{\e!start\v!pagecomment}%
+ {\global\pagecommenttrue
+ \dostartbuffer[\v!pagecomment][\e!start\v!pagecomment][\e!stop\v!pagecomment]}
+
+\setuppagecomment
+ [\c!state=, % \v!stop would invoke background calculation
+ \c!location=\v!bottom,
+ \c!offset=.5cm,
+ \c!distance=.5cm,
+ \c!height=5cm,
+ \c!width=10cm]
+
+% This macro cuts a page into n parts that can be pasted
+% together.
+
+\def\slicepages
+ {\dotripleempty\doslicepages}
+
+\def\doslicepages[#1][#2][#3]%
+ {\ifthirdargument
+ \dodoslicepages[#1][#2][#3]%
+ \else
+ \dodoslicepages[#1][#2][#2]%
+ \fi}
+
+\newcounter\slicedpagenumber
+
+\def\dodoslicepages[#1][#2][#3]%
+ {\bgroup
+ \dontcomplain
+ \globallet\slicedpagenumber\!!zerocount
+ \getfiguredimensions[#1]
+ \getparameters
+ [\??ip]
+ [\c!n=1,
+ \c!offset=\!!zeropoint,
+ \c!hoffset=\!!zeropoint,\c!voffset=\!!zeropoint,
+ \c!width=\figurewidth,\c!height=\figureheight,#2]
+ \ifnum\@@ipn>\zerocount
+ \definepapersize
+ [\s!dummy][\c!height=\@@ipheight,\c!width=\@@ipwidth]
+ \setuppapersize
+ [\s!dummy][\s!dummy]
+ \setuplayout
+ [\c!backspace=\!!zeropoint,\c!topspace=\!!zeropoint,
+ \c!height=\v!middle,\c!width=\v!middle,
+ \c!textdistance=\!!zeropoint,
+ \c!header=\!!zeropoint,\c!footer=\!!zeropoint]
+ \fi
+ \dorecurse\noffigurepages
+ {\global\let\slicedpagenumber\recurselevel
+ \ifnum\@@ipn>\plusone
+ \dorecurse\@@ipn
+ {\let\xslice\recurselevel
+ \dorecurse\@@ipn
+ {\let\yslice\recurselevel
+ \clip
+ [\c!nx=\@@ipn,\c!ny=\@@ipn,\c!x=\xslice,\c!y=\yslice]
+ {\scale
+ [\c!scale=\@@ipn000]
+ {\externalfigure[#1][\c!page=\slicedpagenumber]}}
+ \page}}
+ \else
+ \ifodd\slicedpagenumber\relax
+ \getparameters[\??ip][#2]
+ \else
+ \getparameters[\??ip][#3]
+ \fi
+ \hskip\@@ipoffset
+ \clip
+ [\c!hoffset=\@@iphoffset,\c!voffset=\@@ipvoffset,
+ \c!height=\@@ipheight,\c!width=\@@ipwidth]
+ {\externalfigure[#1][\c!page=\slicedpagenumber]}
+ \page
+ \fi}
+ \egroup}
+
+% \starttext \slicepages[slice1.pdf][n=3] \stoptext
+
+\protect \endinput
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 18:27:46 +0000