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author | Hans Hagen <pragma@wxs.nl> | 2009-05-28 11:23:00 +0200 |
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committer | Hans Hagen <pragma@wxs.nl> | 2009-05-28 11:23:00 +0200 |
commit | 1d3090326210c6e6f7ec5432799ded25b75bba46 (patch) | |
tree | c5921203789ec669e6bccaba4bd56f9c072dc56b /tex/context/base/page-ini.mkiv | |
parent | 94d83f84758766511c5e324721e39fea6ab71dae (diff) | |
download | context-1d3090326210c6e6f7ec5432799ded25b75bba46.tar.gz |
beta 2009.05.28 11:23
Diffstat (limited to 'tex/context/base/page-ini.mkiv')
-rw-r--r-- | tex/context/base/page-ini.mkiv | 1549 |
1 files changed, 1549 insertions, 0 deletions
diff --git a/tex/context/base/page-ini.mkiv b/tex/context/base/page-ini.mkiv new file mode 100644 index 000000000..4aedf171e --- /dev/null +++ b/tex/context/base/page-ini.mkiv @@ -0,0 +1,1549 @@ +%D \module +%D [ file=page-ini, +%D version=2000.10.20, +%D title=\CONTEXT\ Page Macros, +%D subtitle=Initializations, +%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 / Initializations} + +% still a dutch/english mess + +%D This class of modules implements the output routines and +%D floating body support. Although the modules are relatively +%D new, the code herein is rather old. This reordering was +%D needed when column sets were implemented and sharing code +%D started to make sense. + +%D The history shows from the code, since both column +%D mechanism use a different way of looping over columns. + +\unprotect + +\def\m!otr{otr} + +\chardef\normalpagebox=255 + +\newbox\pagebox + +\ifx\recalculatelayout\undefined + + \let \recalculatelayout \relax + +\fi + +\ifx\recalculatelogos\undefined + + \let \recalculatelogos \relax + \let \addlogobackground \gobbleoneargument % <box> + +\fi + +\ifx\recalculatebackgrounds\undefined + + \let \recalculatebackgrounds \relax + \let \addmainbackground \gobbleoneargument % <box> + \let \addtextbackground \gobbleoneargument % <box> + \let \addpagebackground \gobbleoneargument % <box> + \let \addprintbackground \gobbleoneargument % <box> + \let \addstatusinfo \gobbleoneargument % <box> + +\fi + +\ifx\realpageno\undefined + + \countdef\realpageno = 0 \realpageno = 1 + \countdef\userpageno = 1 \userpageno = 1 + \countdef\subpageno = 2 \subpageno = 0 % !! + \countdef\arrangeno = 3 \arrangeno = 0 % !! + + \let\pageno\userpageno + +\fi + +\ifx\realfolio\undefined + + \def\realfolio{\the\realpageno} + +\fi + +\newcount\nofshipouts + +\appendtoks + \global\advance\nofshipouts\plusone +\to \everyaftershipout + +% principle: +% +% multiple otr's +% +% (1) single column, simple routine (old one) +% (2) multi column, collect and split routine (old one) +% (3) multi column, page by page (new one, needed for taco) +% (4) single column, spread handling (for fun) +% (5) multi column, page by page, spread handling (as challenge) +% +% common components +% +% (1) float placement +% (2) float flushing +% (3) page body building +% (4) ... +% +% ort +% +% + balancing +% - mixed / one / multi / balancetofit +% + backgrounds +% + pre / post +% + distances / heights +% + ragged / baseline / normal +% - pos sync +% - last page +% +% - itemize / subtexts -> old mechanism +% +% floats +% +% - top / bottom / side / page / column / spead +% - flush / packed flush / current page / next page / area +% +% footnotes +% +% + carry over pre column / local to column +% + last column / pre last column / each column +% - multiple classes +% - area / page / end +% +% areas +% +% - top / bottom / mid in spread +% +% IMPORTANT +% +% switchtobodyfont in between ivm top + +% floats: +% +% tricky in balancing mode, a la huidige multi columns + +% messages moved + +% messages moved + +% messages moved + +% messages moved + +% messages moved + +% messages moved + +% messages moved + +% messages moved + +\ifx\dosetuplayout\undefined % overloaded in page-lay ! + + \def\setuplayout{\dodoubleempty\getparameters[\??ly]} + +\fi + +\ifx\mkprocesscolumncontents\undefined\let\mkprocesscolumncontents\gobbleoneargument\fi +\ifx\mkprocesspagecontents \undefined\let\mkprocesspagecontents \gobbleoneargument\fi +\ifx\mkprocessboxcontents \undefined\let\mkprocessboxcontents \gobbleoneargument\fi + +\def\normalejectpenalty{-\plustenthousand } \let\ejectpenalty\normalejectpenalty +\def\normalsuperpenalty{-\plustwentythousand} \let\superpenalty\normalsuperpenalty + +%D In case we're not running \ETEX, we need to bypass a +%D couple of primitives. + +% ONE = single column +% MUL = multi column +% SET = columns sets + +\def\@@OTR{OTR} + +\let\OTRdefault\empty + +\def\OTRcommand#1% + {\csname\@@OTR + \ifcsname\@@OTR\OTRidentifier\strippedcsname#1\endcsname + \OTRidentifier + \else\ifcsname\@@OTR\OTRdefault\strippedcsname#1\endcsname % fallback + \OTRdefault + \fi\fi + \strippedcsname#1\endcsname} + +% obsolete + +\def\installotr#1% andere naam, beter \connectotr of zo + {\def\OTRidentifier{#1}} + +\def\activateotr#1#2% + {\def\OTRidentifier{#1}% + \def\OTRdefault {#2}} + +%D The initialization of the \type {\hsize} and \type {\vsize} +%D depends on the OTR used. + +\def\setvsize {\OTRcommand\setvsize} +\def\sethsize {\OTRcommand\sethsize} +\def\finalsidefloatoutput {\OTRcommand\finalsidefloatoutput} +\def\dopagecontents {\OTRcommand\dopagecontents} + +\def\dosettopinserts {\OTRcommand\dosettopinserts} +\def\dosetbotinserts {\OTRcommand\dosetbotinserts} +\def\dotopinsertions {\OTRcommand\dotopinsertions} +\def\dobotinsertions {\OTRcommand\dobotinsertions} +\def\dosetbothinserts {\OTRcommand\dosetbothinserts} + +\def\doflushfloats {\OTRcommand\doflushfloats} +\def\flushfloatbox {\OTRcommand\flushfloatbox} +\def\docheckiffloatfits {\OTRcommand\docheckiffloatfits} + +\def\someherefloat {\OTRcommand\someherefloat} +\def\somefixdfloat {\OTRcommand\somefixdfloat} +\def\somepagefloat {\OTRcommand\somepagefloat} +\def\sometopsfloat {\OTRcommand\sometopsfloat} +\def\somebotsfloat {\OTRcommand\somebotsfloat} +\def\somesidefloat {\OTRcommand\somesidefloat} + +\def\flushsavedfloats {\OTRcommand\flushsavedfloats} + +\def\synchronizehsize {\OTRcommand\synchronizehsize} + +\def\gotonextpage {\OTRcommand\gotonextpage } +\def\gotonextpageX{\OTRcommand\gotonextpageX} % will become obsolete + +% beter een \installotr#1 met #1 = macro en auto test + +\newif \iftraceotr +\newif \ifinotr +\newtoks \mainoutput +\newcount\otrlevel + +% When issuing two \par\penalty-\plustenthousand's, only the first +% triggers the otr; obscure feature or optimization? + +\def\outputcounter{-100010} % -10010 + +\def\doinvokeoutput + {\iftraceotr + \expandafter\dodotracedoutput + \else + \expandafter\dodoinvokeoutput + \fi} + +\def\outputmessage#1#2#3% + {\iftraceotr\writestatus\m!otr{#1 #2 \number#3}\fi} + +\def\dodoinvokeoutput#1% + {\outputmessage+{special}{#1}% + \bgroup\par\penalty#1\relax\egroup + \outputmessage-{special}{#1}} + +\def\dodotracedoutput#1% + {\outputmessage+{traced}{#1/\the\outputpenalty}% + \writestatus\m!otr{c:\number\mofcolumns,v:\the\vsize,g:\the\pagegoal,t:\the\pagetotal}% + \dodoinvokeoutput{#1}% + \writestatus\m!otr{c:\number\mofcolumns,v:\the\vsize,g:\the\pagegoal,t:\the\pagetotal}% + \outputmessage-{traced}{#1/\the\outputpenalty}} + +\def\installoutput#1#2% \invoke \action + {\decrement\outputcounter + \edef#1{\noexpand\doinvokeoutput{\outputcounter}}% + \setvalue{\@@OTR\outputcounter}{#2}} + +\def\invokeoutputroutine + {\outputmessage+{trying}\outputpenalty + \executeifdefined{\@@OTR\the\outputpenalty}\dodonormaloutput + \outputmessage-{trying}\outputpenalty} + +\def\dodonormaloutput + {\outputmessage+{normal}\outputpenalty + \the\OTRcommand\output + \outputmessage-{normal}\outputpenalty} + +\mainoutput{\invokeoutputroutine} \output{\inotrtrue\the\mainoutput} + +%D Some hooks: + +\output{\inotrtrue\the\everybeforeoutput\the\mainoutput\the\everyafteroutput} + +\ifx\pagediscards\undefined \let\pagediscards\relax \fi + +\installoutput\synchronizeoutput % maybe add pagediscards + {\ifvoid\normalpagebox\else + \unvbox\normalpagebox + \pagediscards % maybe not needed ? + \fi} + +\installoutput\discardpage + {\setbox\scratchbox\box\normalpagebox} + +%D In order to force consistent use of variables, we +%D predefine a lot of them here. + +%D The next two registers can be used to store pre column +%D material as well as footnotes or so. + +\newbox\precolumnbox \newdimen\precolumnboxheight +\newbox\postcolumnbox \newdimen\postcolumnboxheight + +%D We reserve a counter for the number of columns as well as +%D the current column. Both are not to be changed by users! + +\newcount\nofcolumns \nofcolumns = 1 +\newcount\mofcolumns \mofcolumns = 1 + +\chardef\maxnofcolumns = 50 +\chardef\allocatednofcolumns = 0 + +%D The next dimensions reports the final column height + +\newdimen\finalcolumnheights +\newcount\finalcolumnlines + +%D During initialization the temporary boxes are allocated. +%D This enables us to use as much columns as we want, without +%D exhausting the pool of boxes too fast. We could have packed +%D them in one box, but we've got enough boxes. +%D +%D Two sets of boxes are declared, the txtboxes are used for +%D the text, the topboxes are for moved column floats. + +\def\@col@{@col@} + +\def\initializecolumns#1% + {\ifnum#1>\maxnofcolumns + \showmessage\m!columns1\maxnofcolumns + \nofcolumns\maxnofcolumns + \else + \nofcolumns#1\relax + \fi + \ifnum\nofcolumns>\allocatednofcolumns + \dorecurse\nofcolumns + {\ifnum\recurselevel>\allocatednofcolumns\relax + % \newbox\next \letgvalue{\@col@-\recurselevel-t}=\next + \@EA\newbox\csname\@col@-\recurselevel-t\endcsname % text + \@EA\newbox\csname\@col@-\recurselevel-f\endcsname % foot + \@EA\newbox\csname\@col@-\recurselevel-h\endcsname % top insert + \@EA\newbox\csname\@col@-\recurselevel-l\endcsname % top insert + \fi}% + \global\chardef\allocatednofcolumns=\nofcolumns + \fi} + +\def\firstcolumnbox {\columntextbox\plusone} +\def\currentcolumnbox {\columntextbox\mofcolumns} +\def\lastcolumnbox {\columntextbox\nofcolumns} + +\def\firsttopcolumnbox {\columntopbox \plusone} +\def\currenttopcolumnbox{\columntopbox \mofcolumns} +\def\lasttopcolumnbox {\columntopbox \nofcolumns} + +\def\columntextbox#1{\csname\@col@-\number#1-t\endcsname} +\def\columnfootbox#1{\csname\@col@-\number#1-f\endcsname} +\def\columntopbox #1{\csname\@col@-\number#1-h\endcsname} +\def\columnbotbox #1{\csname\@col@-\number#1-l\endcsname} + +\def\columnsettextbox{\global\setbox\columntextbox} +\def\columnsetfootbox{\global\setbox\columnfootbox} +\def\columnsettopbox {\global\setbox\columntopbox} +\def\columnsetbotbox {\global\setbox\columnbotbox} + +\def\columngettextbox{\copy\columntextbox} +\def\columngetfootbox{\copy\columnfootbox} +\def\columngettopbox {\copy\columntopbox} +\def\columngetbotbox {\copy\columnbotbox} + +\def\columnerasetextboxes{\dorecurse\allocatednofcolumns{\columnsettextbox\recurselevel\emptybox}} +\def\columnerasefootboxes{\dorecurse\allocatednofcolumns{\columnsetfootbox\recurselevel\emptybox}} +\def\columnerasetopboxes {\dorecurse\allocatednofcolumns{\columnsettopbox \recurselevel\emptybox}} +\def\columnerasebotboxes {\dorecurse\allocatednofcolumns{\columnsetbotbox \recurselevel\emptybox}} + +%D Without going in details we present two macro's which handle +%D the columns. The action which is transfered by the the first +%D and only parameter can do something with \type +%D {\currentcolumnbox}. In case of the mid columns, \type +%D {\firstcolumnbox} and \type {\lastcolumnbox} are handled +%D outside these macro's. + +\def\dohandlecolumn#1% + {\mofcolumns\recurselevel + \let\currentcolumn\recurselevel + #1\relax} + +\def\dohandleallcolumns#1% + {\dorecurse\nofcolumns{\dohandlecolumn{#1}}} + +\def\dohandlerevcolumns#1% + {\dostepwiserecurse\nofcolumns\plusone\minusone{\dohandlecolumn{#1}}} + +\def\dohandlemidcolumns#1% + {\dohandleallcolumns + {\ifnum\recurselevel>\plusone + \ifnum\recurselevel<\nofcolumns + \dohandlecolumn{#1}% + \fi + \fi}} + +%D This register can be used as a temporary storage for page +%D content. + +\newbox\restofpage + +%D Features. + +\newif\ifintermediatefootnotes +\newif\ifcarryoverfootnotes %\carryoverfootnotestrue +\newif\iflastcolumnfootnotes %\lastcolumnfootnotestrue +\newif\ifbalancecolumns %\balancecolumnstrue +\newif\ifbalancetoheight %\balancetoheighttrue +\newif\ifforcecolumngrid \forcecolumngridtrue +\newif\ifstretchcolumns \stretchcolumnsfalse +\newif\ifinheritcolumns \inheritcolumnsfalse +\newif\ifheightencolumns \heightencolumnsfalse + +\newif\ifbalancingcolumns +\newif\ifcollectingcontent +\newif\ifcolumnoverflow +\newif\iffinalflushingfloats +\newif\ifpackflushedfloats \packflushedfloatstrue % for the moment + +\newdimen\intercolumnwidth +\newdimen\localcolumnwidth +\newdimen\savedpagetotal + +\chardef\columndirection=0 % 0:lr 1:rl + +\def\minbalancetoplines {1} +\def\minfreecolumnlines {2} + +\newif\ifrecentercolumnbox \recentercolumnboxtrue +\newif\ifrerecentercolumnbox \rerecentercolumnboxtrue +\newif\ifpackcolumnfloats \packcolumnfloatstrue + +\newbox\collectedpagefloats +\newbox\collectedleftpagefloats +\newbox\collectedrightpagefloats + +%D The \type {\ifdim} test is needed, because otherwise the +%D last line of a text end up on top of the baseline instead of +%D on the baseline, as is the case with preceding pages. +%D Also, a \type {\vfil} better than a \type {\vfill}. + +% to be replaced by \page[now] \page[final] / merged + +% \def\eject {\par\penalty-\plustenthousand } % == {\par\break} % plain +% \def\supereject {\par\penalty-\plustwentythousand} % also plain + +\def\eject {\par\ifvmode\penalty\ejectpenalty\fi\resetpagebreak} % == {\par\break} % plain +\def\supereject {\par\ifvmode\penalty\superpenalty\fi\resetpagebreak} % also plain + +\def\doejectpage {\par\ifvmode\ifdim\pagetotal>\pagegoal\else\normalvfil\fi\fi} % pg set to \textheight +\def\ejectpage {\doejectpage\eject} +\def\superejectpage{\doejectpage\supereject} + +\ifx\bye\undefined \def\bye{\par\vfill\supereject\end} \fi % plain tex command + +% floats +% +% \def\ejectinsert +% {\flushnotes +% \bgroup +% \noftopfloats\plusthousand +% \nofbotfloats\zerocount +% \doflushfloats +% \egroup} + +\def\ejectinsert + {\flushnotes + \bgroup + \noftopfloats\plusthousand + \nofbotfloats\zerocount + % this is needed in case a float that has been stored + % ends up at the current page; this border case occurs when + % the calculated room is 'eps' smaller that the room available + % when just flushing; so now we have (maybe optional): + \pagebaselinecorrection + % alas, this is tricky but needed (first surfaced in prikkels) + \doflushfloats + \egroup} + +\def\ejectdummypage + {\endgraf \ifvmode + \ejectinsert + \hardespatie % will be different + \vfill + \gotonextpage + \fi} + +\def\beforefinaloutput + {} + +\def\afterfinaloutput + {\forgetall + \vskip\zeropoint\relax + \ifvoid\normalpagebox \else + \unvbox\normalpagebox + \penalty\outputpenalty + \fi + % not really needed, replaced by \flushsavedfloats + \ifnum\outputpenalty>\superpenalty \else % better use a proper otr signal + \dosupereject + \fi + % but does not hurt either (we're still in the otr!) + \inpagebodytrue % needed for enabling \blank ! + \flushsavedfloats % was \dosetbothinserts; only otr one ! + \setvsize % this is needed for interacting components, like floats and multicolumns + \adaptfuzzypagegoal} % watch this hack! + +\def\dofinaloutput#1#2% \vbox: prevents spurious spaces in every..pagebody + {\beforefinaloutput + \the\everybeforeshipout % brrr not in shipout + \the\pageboundsettings + \myshipout{\hbox{\vbox{\dopagebody#1#2\setpagecounters}}}% + \the\everyaftershipout + \afterfinaloutput + \popproperties} % ... and here ... + +\def\donofinaloutput#1#2% + {\beforefinaloutput + \the\everybeforeshipout + \setpagecounters + \message{[-\the\realpageno]}% + \setbox\scratchbox\hbox + {%\the\everyshipout % still needed here ? + \dopagebody#1#2}% + \deadcycles\zerocount + \gotonextrealpage + \the\everyaftershipout + \afterfinaloutput + \popproperties} % ... and here + +% beware: \ifprocessingpages is in use + +\ifx\checkpageversion\undefined \let\checkpageversion\relax \fi % todo: hook into \everybeforeshipout +\ifx\doflushspread \undefined \let\doflushspread \relax \fi % todo + +\def\finaloutput#1#2% + {\checkpageversion + \ifprocessingpages + \ifpageselected + \@EAEAEA\dofinaloutput + \else + \@EAEAEA\donofinaloutput + \fi + \else + \ifpageselected + \@EAEAEA\donofinaloutput + \else + \@EAEAEA\dofinaloutput + \fi + \fi#1#2% + \resetselectiepagina + \incrementpagenumber + \checkpagedimensions + \ifnum\outputpenalty>\superpenalty \else + \dosupereject + \fi + \doflushspread + \dopostponeblock} + +\def\dooutput + {\finaloutput\unvbox\normalpagebox} + +\maxdeadcycles=1000 + +% will be installable tracer; better use chardef + +% this needs a real cleanup + +\def\doplaceversiontext#1#2% + {\doifsomething{#2} + {\defconvertedcommand\ascii{#2}% + \space#1:\space\ascii\space + \!!doneatrue}} + +\def\placeversioninfo % nog engels maken + {\ifcase\conceptmode + % 0 : nothing + \or + % 1 : simple + \vskip\!!sixpoint + \hbox to \makeupwidth + {\infofont + \v!concept:\space\currentdate + \hss\reportpagedimensions}% + \else + % 2/3 : extensive + \vskip\!!sixpoint + \hbox to \makeupwidth + {\infofont + \getmessage\m!systems{27}:\space\currentdate\space + \doplaceversiontext\v!project \currentproject + \doplaceversiontext\v!product \currentproduct + \doplaceversiontext\v!component\currentcomponent + \if!!donea\else\space\v!file:\space\jobname\fi + \hss\reportpagedimensions}% + \fi} + +% tot hier + +\def\doversion[#1]% + {\chardef\conceptmode\zerocount + \overfullrule\zeropoint + \processaction % \v!final=> + [#1] + [ \v!concept=>\chardef\conceptmode\plusone, % simple banner + \v!file=>\chardef\conceptmode\plustwo, % full banner + \v!temporary=>\chardef\conceptmode\plusthree % full banner plus + \overfullrule5\points]} % info in the margin + +\def\version + {\dosingleargument\doversion} + +\def\addstatusinfo + {\ifcase\conceptmode + \@EA\gobbleoneargument + \else + \@EA\doaddstatusinfo + \fi} + +\def\doaddstatusinfo#1% + {\setbox#1\vbox to \paperheight + {\vsmashbox#1\box#1% + \offinterlineskip + \vskip\topspace + \hsize\paperwidth + \hfill\hbox{\placetestinfo\hskip.5cm}\vss + \settexthoffset\hskip\texthoffset % brrrr + %\tlap{\placeversioninfo}\vskip.5cm + \vbox to 1cm{\vss\placeversioninfo\vss}}} + +\def\dotestinfo#1#2#3% + {\ifinpagebody\else\ifnum\conceptmode=\plusthree + \begingroup + \defconvertedcommand\ascii{#3}% + \xdef\extratestinfo + {#2\space\ascii}% + \gdef\totaltestinfo + {\global\setbox#1\vbox + {\unvbox#1\relax + \infofont \setupinterlinespace + \hbox + {\strut + \expanded{\doboundtext{\extratestinfo}{12em}{..}}% + \quad}}}% + \endgroup + \ifinner + \aftergroup\totaltestinfo + \else + \totaltestinfo + \fi + \fi\fi} + +% this will be inserts some day + +% \installinsertion\referenceinfobox +% \installinsertion\registerinfobox +% \installinsertion\floatinfobox + +\newbox\referenceinfobox +\newbox\registerinfobox +\newbox\floatinfobox + +\def\referenceinfo{\dotestinfo\referenceinfobox} +\def\registerinfo {\dotestinfo\registerinfobox} +\def\floatinfo {\dotestinfo\floatinfobox} + +\def\placetestinfo + {\vbox to \makeupheight + {\forgetall + \infofont + \hsize10em + \ifvoid\floatinfobox\else + \strut \getmessage\m!systems{24}% + \vskip\!!sixpoint + \unvbox\floatinfobox + \vskip\!!twelvepoint + \fi + \ifvoid\referenceinfobox\else + \strut \getmessage\m!systems{25}% + \vskip\!!sixpoint + \unvbox\referenceinfobox + \vskip\!!twelvepoint + \fi + \ifvoid\registerinfobox\else + \strut \getmessage\m!systems{26}% + \vskip\!!sixpoint + \unvbox\registerinfobox + \fi + \vss}} + +\version[\v!final] + +% bewaren tvb documentatie +% +% \hbox to \hsize +% {\en +% \switchnaarkorps[5pt]% +% \emergencystretch2em +% \dimen0=\baselineskip +% \baselineskip=\dimen0 plus 1pt +% \hsize=.2\hsize +% \vsize=2\hsize +% \ruledvbox to \vsize{\input tufte \par}\hss +% \ruledvbox to \vsize{\input tufte \par\kern-\prevdepth}\hss +% \ruledvbox to \vsize{\input tufte \par\kern0pt}\hss +% \ruledvbox to \vsize{\input tufte \par\vfill}\hss +% \ruledvbox to \vsize{\input tufte \par\kern-\prevdepth\vfill}} +% +% \hbox to \hsize +% {\en +% \switchnaarkorps[5pt]% +% \emergencystretch2em +% \dimen0=\baselineskip +% \baselineskip=\dimen0 plus 1pt +% \hsize=.18\hsize +% \vsize=2.5\hsize +% \setbox0=\vbox{\input tufte\relax}% +% \ruledvbox to \vsize{\unvcopy0}\hss +% \ruledvbox to \vsize{\unvcopy0\kern-\dp0}\hss +% \ruledvbox to \vsize{\unvcopy0\kern0pt}\hss +% \ruledvbox to \vsize{\unvcopy0\vfill}\hss +% \ruledvbox to \vsize{\unvcopy0\kern-\dp0\vfill}} + +\newtoks\afterpage \newtoks\aftereverypage +\newtoks\beforepage \newtoks\beforeeverypage + +\chardef\showgridstate=0 + +\def\showgrid + {\dosingleempty\doshowgrid} + +\def\doshowgrid[#1]% + {\chardef\showgridstate \plusone % downward compatible default + \chardef\gridboxlinemode \plusone + \chardef\gridboxlinenomode\plusone + \processallactionsinset + [#1]% + [ \v!reset=>\chardef\showgridstate \zerocount, + \v!bottom=>\chardef\showgridstate \plusone, + \v!top=>\chardef\showgridstate \plustwo, + \v!none=>\chardef\gridboxlinemode \zerocount, + \v!all=>\chardef\gridboxlinemode \plusone, + \v!lines=>\chardef\gridboxlinemode \plustwo, + \v!frame=>\chardef\gridboxlinemode \plusthree, + \v!nonumber=>\chardef\gridboxlinenomode\zerocount, + \v!right=>\chardef\gridboxlinenomode\plusone, + \v!left=>\chardef\gridboxlinenomode\plustwo]} + +\def\buildpagebox#1% + {\setbox#1\vbox to \paperheight + {\hsize\paperwidth + \vskip\topspace + \doifbothsides + {\hskip\backspace} + {\hskip\backspace} + {\hskip\paperwidth \hskip-\backspace \hskip-\makeupwidth}% + \box#1}% + \dp#1\zeropoint} + +% \newif\ifpagebodyornaments \pagebodyornamentstrue +% +% \appendtoks +% \global\pagebodyornamentstrue +% \to \everyaftershipout + +\newif\ifarrangingpages \arrangingpagesfalse + +\chardef\pageornamentstate\zerocount % 0=on 1=one-off 2=always-off + +\def\pagebodyornamentstrue {\chardef\pageornamentstate\zerocount} % for a while +\def\pagebodyornamentsfalse{\chardef\pageornamentstate\plusone} % for a while + +\appendtoks + \ifcase\pageornamentstate\or + \chardef\pageornamentstate\zerocount + \fi +\to \everyaftershipout + +\let\poparrangedpages\relax +\let\pusharrangedpage\relax + +\ifx\shiftprintpagebox\undefined + \let\shiftprintpagebox\gobbleoneargument + \let\shiftpaperpagebox\gobbleoneargument +\fi + +\ifx\registerpageposition\undefined + \let\registerpageposition\gobbleoneargument +\fi + +\def\reportarrangedpage#1% + {\showmessage\m!systems + {23}{\the\realpageno.\the\pageno\ifnum\subpageno>0 .\the\subpageno\fi,#1}} + +\newif\ifsavepagebody \newbox\savedpagebody + +% beware, \??ly is used before defined, i.e. bad module design + +\setuplayout[\c!method=\v!normal] + +\def\buildpagebody#1#2% + {\ifsavepagebody\global\setbox\savedpagebody\fi + \vbox + {\beginrestorecatcodes + \forgetall % igv problemen, check: \boxmaxdepth\maxdimen + \boxmaxdepth\maxdimen % new + \dontcomplain + % the following plugin uses and sets pagebox; beware: this + % will change and is for my (hh) personal experiments + \executeifdefined{\??ly\c!method\@@lymethod}% + {\getvalue{\??ly\c!method\v!normal}}#1#2% + % the finishing touch + \ifcase\pageornamentstate + \addpagebackground \pagebox + \fi + \registerpageposition\pagebox + \ifarrangingpages + \shiftpaperpagebox \pagebox % \v!paper + \else + \clippagebox \pagebox + \addpagecutmarks \pagebox + \replicatepagebox \pagebox + \scalepagebox \pagebox + \mirrorpaperbox \pagebox + \orientpaperbox \pagebox + \addpagecolormarks \pagebox + \centerpagebox \pagebox + \addprintbackground\pagebox + \mirrorprintbox \pagebox + \orientprintbox \pagebox + \shiftprintpagebox \pagebox % \v!page + \offsetprintbox \pagebox + \negateprintbox \pagebox + \fi + \box\pagebox + \endrestorecatcodes}% + \ifsavepagebody\copy\savedpagebody\fi} + +\setvalue{\??ly\c!method\v!normal}#1#2% + {\setbox\pagebox\vbox + {\offinterlineskip + \ifcase\pageornamentstate + \bgroup % else footnotes get inconsistent font/baseline + \dostartattributes\??ly\c!style\c!color\empty + \offinterlineskip + \gettextboxes + \dostopattributes + \egroup + \fi + \getmainbox#1#2}% including footnotes + \ifcase\pageornamentstate + \addmainbackground \pagebox + \addlogobackground \pagebox + \fi + \buildpagebox \pagebox + \addstatusinfo \pagebox} + +\def\finishpagebox#1% + {\ifarrangingpages + \addpagecutmarks #1% + \addpagecolormarks#1% + \centerpagebox #1% + \mirrorprintbox #1% + \orientprintbox #1% + \offsetprintbox #1% + \negateprintbox #1% + \fi} + +\appendtoks \restoreglobalbodyfont \to \everybeforepagebody +\appendtoks \restorecolumnsettings \to \everybeforepagebody + +\ifx\nestednewbox\undefined \newbox\nestednextbox \fi + +\prependtoks \let\nextbox\nestednextbox \to \everybeforepagebody + +\def\dopagebody#1#2% + {%\getallmarks % now in following token register + \the\everybeforepagebody + \starttextproperties + \gotonextsubpage % nog eens: als in pagina (tbv standaard opmaak) + \dontshowboxes % dan hier blokkeren en verderop resetten +% \shipoutfacingpage + \checkmargeblokken + \the\beforeeverypage + \flushtoks\beforepage + \inpagebodytrue\buildpagebody#1#2% + \flushtoks\afterpage + \the\aftereverypage + \resetpagebreak + %updatelistreferences % now in aftereverypage + \resetlayouttextlines % will go to \aftereverypage + \stoptextproperties + \the\everyafterpagebody} + +\newtoks\pageboundsettings + +\prependtoks \initializepaper \to \pageboundsettings + +% not here + +\newif\ifpagebreakdisabled \pagebreakdisabledfalse + +% \chardef\testpagemethod=0 % todo: \testnewpage[method=,lines=,voffset=] +% +% \def\testpage {\dotripleempty\dotestpage[\plusone]} +% \def\testpageonly{\dotripleempty\dotestpage[\plustwo]} +% +% \def\dotestpage[#1][#2][#3]% +% {%\relax % needed before \if +% \endgraf +% \ifpagebreakdisabled +% % do nothing +% \else +% %ifnum#1=\plusone\synchronizeoutput\fi +% \ifdim\pagegoal<\maxdimen \relax +% \ifdim\pagetotal<\pagegoal \relax +% \scratchdimen\lineheight +% \multiply\scratchdimen#2\relax +% \advance\scratchdimen \pagetotal +% \ifdim\lastskip<\parskip +% \advance\scratchdimen \parskip +% \fi +% \ifthirdargument +% \advance\scratchdimen#3\relax +% \fi +% \ifcase\testpagemethod +% \ifdim\scratchdimen>.99\pagegoal +% \vfill\eject % \penalty-\!!tenthousand\relax +% \fi +% \or +% \advance\scratchdimen-\pagegoal +% \ifdim\scratchdimen>-\lineheight +% \vfill\eject % \penalty-\!!tenthousand\relax +% \fi +% \or +% \getnoflines\pagegoal +% \advance\scratchdimen-\noflines\lineheight \relax +% \ifdim\scratchdimen>-\lineheight +% \vfill\eject % \penalty-\!!tenthousand\relax +% \fi +% \or % same as 0 but more accurate +% \advance\scratchdimen-10\s!sp\relax +% \ifdim\scratchdimen>\pagegoal +% \vfill\eject % \penalty-\!!tenthousand\relax +% \fi +% \fi +% \else +% % force page break / new +% % \vfill\eject % \penalty-\!!tenthousand\relax +% \fi +% \else +% \ifnum#1=\plusone\goodbreak\fi +% \fi +% \fi} + +\chardef\testpagemethod \zerocount % todo: \testnewpage[method=,lines=,voffset=] +\chardef\testpagetrigger\zerocount + +\def\testpage {\dotripleempty\dotestpage[\plusone ]} % +\def\testpageonly{\dotripleempty\dotestpage[\plustwo ]} % no penalties added to the mvl +\def\testpagesync{\dotripleempty\dotestpage[\plusthree]} % force sync + +\def\dotestpage[#1][#2][#3]% don't change, only add more methods + {\relax % needed before \if + \ifpagebreakdisabled + \endgraf + \else + % new from here + \ifcase\testpagetrigger + \endgraf + \or + \ifvmode + \dosomebreak\allowbreak + \else % indeed? + \vadjust{\allowbreak}% + \endgraf + \fi + \fi + % till here + \ifdim\pagegoal<\maxdimen \relax + \ifdim\pagetotal<\pagegoal \relax + \scratchdimen\lineheight + \multiply\scratchdimen#2\relax + \advance\scratchdimen \pagetotal + \ifdim\lastskip<\parskip + \advance\scratchdimen \parskip + \fi + \ifthirdargument + \advance\scratchdimen#3\relax + \fi + \ifcase\testpagemethod + \ifdim\scratchdimen>.99\pagegoal + \penalty-\!!tenthousand\relax + \fi + \or + \advance\scratchdimen-\pagegoal + \ifdim\scratchdimen>-\lineheight + \penalty-\!!tenthousand\relax + \fi + \or + \getnoflines\pagegoal + \advance\scratchdimen-\noflines\lineheight \relax + \ifdim\scratchdimen>-\lineheight + \penalty-\!!tenthousand\relax + \fi + \or % same as 0 but more accurate + \advance\scratchdimen-10\s!sp\relax + \ifdim\scratchdimen>\pagegoal + \penalty-\!!tenthousand\relax + \fi + \fi + \else + \ifnum#1=\plusthree + \flushpagesofar + \fi + \fi + \else + \ifnum#1=\plusone\goodbreak\fi + \fi + \fi} + +\def\flushpagesofar + {\endgraf + \ifdim\pagetotal>\pagegoal + \ifdim\dimexpr\pagetotal-\pageshrink\relax>\pagegoal + \goodbreak % \penalty0 + \else + \page + \fi + \else + \fi} + +\def\testcolumn + {\dodoubleempty\dotestcolumn} + +\def\dotestcolumn[#1][#2]% + {%\relax % needed before \if ! + \endgraf + \ifdim\pagegoal<\maxdimen \ifdim\pagetotal<\pagegoal % \relax + \scratchdimen\pagegoal + \advance\scratchdimen-\pagetotal + \ifdim\lastskip<\parskip + \advance\scratchdimen \parskip + \fi + \ifsecondargument + \advance\scratchdimen#2% + \fi + \getrawnoflines\scratchdimen % raw ! + % \message{[\number#1>\number\noflines ?}\wait + \ifnum#1>\noflines + \column + \fi + \else + \penalty-\!!tenthousand % untested ! ! \column + \fi \fi} + +\let\resetcurrentsectionmarks\relax + +% was: \resetsectionmarks\firstsection, zie \handlepagebreak + +\def\page{\pagebreak} % the short form of \pagebreak (mult-com one) + +\def\resetpagebreak + {\global\pagebreakdisabledfalse} + +\def\simplifypagebreak + {\def\dopagebreak[##1]{\goodbreak}} + +\def\disablepagebreaks + {\def\dopagebreak[##1]{}} + +\def\executepagebreakhandler#1% + {\edef\@@pagespecification{#1}% + \doifdefinedelse{\??pe:\@@pagespecification} + {\getvalue{\??pe:\@@pagespecification}} + {\doifdefinedelse{\??pe::\@@pagespecification} + {\executepagebreakhandlers{\getvalue{\??pe::\@@pagespecification}}} + {\getvalue{\??pe:\s!unknown}}}} + +\long\def\installpagebreakhandler#1#2% + {\long\setvalue{\??pe:#1}{#2}} + +% \definecomplexorsimple\pagebreak + +% \def\simplepagebreak +% {\executepagebreakhandler\v!ja} + +% \def\complexpagebreak[#1]% if empty, do nothing and avoid processing, +% {\flushnotes % see head's; watch how we group +% \doifsomething{#1}{\bgroup\executepagebreakhandlers{#1}\egroup}} + +\unexpanded\def\pagebreak + {\dosingleempty\dopagebreak} + +\def\dopagebreak[#1]% so, page ornaments are reset after a pagebreak command, unless set + {\bgroup + \edef\prevrealpageno{\the\realpageno}% + \ifcase\pageornamentstate \or + % disable reset after shipout + \global\chardef\pageornamentstate\plustwo + \fi + \iffirstargument % or if empty i.e. [] + \flushnotes\executepagebreakhandlers{#1}% + \else % so, no pagebreak when \pagebreak[] ! ! ! + \flushnotes\executepagebreakhandler\v!yes + \fi + \ifnum\prevrealpageno<\realpageno + \global\chardef\pageornamentstate\zerocount + \fi + \egroup} + +\def\executepagebreakhandlers#1% + {\processcommacommand[#1]\executepagebreakhandler} + +\installpagebreakhandler \s!dummy + {\ejectinsert + \gotonextpage + \ejectdummypage} + +\installpagebreakhandler \v!frame + {\page\bgroup\showframe\page[\v!empty]\egroup} + +\installpagebreakhandler \s!unknown + {\doifinstringelse{+}\@@pagespecification + {\ejectinsert + \gotonextpage + \dorecurse\@@pagespecification\ejectdummypage} + {\doifnumberelse\@@pagespecification + {\ejectinsert + \gotonextpage + \doloop + {\ifnum\userpageno<\@@pagespecification\relax + \ejectdummypage + \else + \exitloop + \fi}} + {}}} + +\installpagebreakhandler \s!default + {} % do nothing if empty + +\installpagebreakhandler \v!reset + {% better not: \global\chardef\pageornamentstate\zerocount + \resetpagebreak} + +\installpagebreakhandler \v!disable + {\global\pagebreakdisabledtrue} + +\installpagebreakhandler \v!yes + {\ifpagebreakdisabled\else + \ejectinsert + \gotonextpage + \ifinsidecolumns % this will move to MUL + \ejectpage % anders soms geen overgang + \fi + \fi} + +\installpagebreakhandler \v!makeup % ?? + {\ifpagebreakdisabled\else + \eject + \fi} + +\installpagebreakhandler \v!blank + {\ifcase\pageornamentstate + \global\chardef\pageornamentstate\plusone + \fi} + +\installpagebreakhandler \v!no + {\ifpagebreakdisabled\else + \dosomebreak\nobreak + \fi} + +\installpagebreakhandler \v!preference + {\ifpagebreakdisabled\else + \ifinsidecolumns % this will move to MUL + \dosomebreak\goodbreak + \else + \testpage[3][\zeropoint]% + \fi + \fi} + +\installpagebreakhandler \v!bigpreference + {\ifpagebreakdisabled\else + \ifinsidecolumns % this will move to MUL + \dosomebreak\goodbreak + \else + \testpage[5][\zeropoint]% + \fi + \fi} + +\installpagebreakhandler \v!empty + {\ejectinsert + \gotonextpage + \doifnotvalue{\??tk\v!header\c!state}\v!stop{\setupheader[\c!state=\v!empty]}% + \doifnotvalue{\??tk\v!footer\c!state}\v!stop{\setupfooter[\c!state=\v!empty]}% + \ejectdummypage} + +\installpagebreakhandler \v!left + {\ejectinsert + \gotonextpageX % will become \gotonextpage + \doifbothsidesoverruled{}{\resetcurrentsectionmarks\ejectdummypage}{}} + +\installpagebreakhandler \v!right + {\ejectinsert + \gotonextpageX % will become \gotonextpage + \doifbothsidesoverruled{}{}{\resetcurrentsectionmarks\ejectdummypage}} + +\installpagebreakhandler \v!even + {\page + \doifoddpageelse{\resetcurrentsectionmarks\ejectdummypage}\donothing} + +\installpagebreakhandler \v!odd + {\page + \doifoddpageelse\donothing{\resetcurrentsectionmarks\ejectdummypage}} + +\installpagebreakhandler \v!quadruple % not yet ok inside columnsets + {\ifdoublesided + \!!counta\realpageno + \!!countb\realpageno + \divide\!!counta 4 + \divide\!!countb 2 + \ifnum\!!counta=\!!countb + \else + \executepagebreakhandler\v!yes + \executepagebreakhandler\v!empty + \executepagebreakhandler\v!empty + \fi + \fi} + +\installpagebreakhandler \v!last + {\ejectinsert + \gotonextpageX % will become \gotonextpage + \relax + \doifbothsidesoverruled + {\shipoutfacingpage} + {} + {\noheaderandfooterlines \ejectdummypage}% + \filluparrangedpages} + +\installpagebreakhandler \v!lastpage % handy for backpage preceded by empty pages + {\executepagebreakhandler\v!yes + \ifdoublesided + \executepagebreakhandler\v!left + \executepagebreakhandler\v!empty + \executepagebreakhandler\v!empty + \fi} + +\installpagebreakhandler \v!start + {\globallet\shipout\normalshipout} + +\installpagebreakhandler \v!stop + {\globallet\shipout\noshipout} + +% nb: \executepagebreakhandler\v!hoofd in other ones + +\installpagebreakhandler \v!header + {\doifnotvalue{\??tk\v!header\c!state}\v!stop{\setupheader[\c!state=\v!empty]}} + +\installpagebreakhandler \v!footer + {\doifnotvalue{\??tk\v!footer\c!state}\v!stop{\setupfooter[\c!state=\v!empty]}} + +% \definepagebreak +% [chapter] +% [yes,header,right] +% +% \setuphead +% [chapter] +% [page=chapter, +% header=empty, +% footer=chapter] +% +% \definepagebreak % untested +% [lastpage] +% [left,{empty,right},{empty,left}] + +% public page handler, beware: definepage already in use (core-ref) +% +% \definepagebreak[instance][forsure] +% \definepagebreak[forsure][yes,+4] + +\def\definepagebreak + {\dodoubleargument\dodefinepagebreak} + +\def\dodefinepagebreak[#1][#2]% non recursive, meant for simple mappings + {\setvalue{\??pe::#1}{#2}} + +% hier nog uti blokkeren + +% don't change this / test case: +% +% \setupbackgrounds[state=repeat] +% \setupbackgrounds[text][text][background=whatever] +% \couplepage[chapter][before={\defineoverlay[whatever][ON]}] +% \setuphead[chapter][before={\pagetype[chapter]}] +% \chapter{First} \page test \chapter{second} \page test + +\long\def\installcolumnbreakhandler#1#2#3% #1=otr-id #2=tag + {\long\setvalue{\??cn:#1:#2}{#3}} + +\def\definecolumnbreak + {\dodoubleargument\dodefinecolumnbreak} + +\def\dodefinecolumnbreak[#1][#2]% non recursive, meant for simple mappings + {\setvalue{\??cn::#1}{#2}} + +%\def\columnbreak +% {\dosingleempty\docolumnbreak} +% +%\def\docolumnbreak[#1]% +% {\expanded{\nextcolumn[\executeifdefined{\??cn::#1}{#1}]}} + +\definecomplexorsimple\columnbreak + +\def\simplecolumnbreak + {\executecolumnbreakhandler\v!yes} + +\def\complexcolumnbreak[#1]% if empty, do nothing and avoid processing + {\doifsomething{#1}{\executecolumnbreakhandlers{#1}}} + +\def\executecolumnbreakhandlers#1% + {\processcommacommand[#1]\executecolumnbreakhandler} + +\def\executecolumnbreakhandler#1% here no commalist + {\edef\@@columnspecification{#1}% + \doifdefinedelse{\??cn:\OTRidentifier:\@@columnspecification} + {\getvalue{\??cn:\OTRidentifier:\@@columnspecification}} + {\doifdefinedelse{\??cn::\@@columnspecification} + {\executecolumnbreakhandlers{\getvalue{\??cn::\@@columnspecification}}} + {\getvalue{\??cn:\OTRidentifier:\s!unknown}}}} + +%let\nextcolumn\columnbreak +\let\column \columnbreak + +% We don't want spurious last pages (due to left over marks): + +\def\noshipout + {\writestatus\m!systems{ignoring further shipouts}% + \global\advance\realpageno\minusone % else no flush of resources + \dowithnextbox{\deadcycles\zerocount}} + +% \def\doignorerestoftext +% {\ifarrangingpages \else \ifnum\textlevel>\zerocount \else +% \globallet\shipout\noshipout +% \fi \fi} +% +% better: + +\def\doignorerestoftext + {\ifarrangingpages \else \ifnum\textlevel=\plusone + \globallet\shipout\noshipout + \fi \fi} + +\let\ignorerestoftext\donothing + +\prependtoks % only ignore in a symmetrical doc + \globallet\ignorerestoftext\doignorerestoftext +\to \everystarttext + +% \appendtoks +% \ignorerestoftext +% \to \everylastshipout + +\newif\ifpageselected \pageselectedtrue +\newif\ifselectingpages \selectingpagesfalse +\newif\ifprocessingpages\processingpagestrue + +\let\pageselection \empty +\let\currentpageselection\empty +\let\aftershipout \relax +\let\beforeshipout \relax + +\def\dodobeforeshipout#1% + {\global\let\beforeshipout\relax + \getvalue{\??pg#1\c!before}} + +\def\dobeforeshipout + {\doifsomething\currentpageselection + {\processcommacommand[\currentpageselection]\dodobeforeshipout}} + +\def\dododoaftershipout#1% + {\global\let\aftershipout\relax + \global\let\currentpageselection\empty + \getvalue{\??pg#1\c!after}} + +\def\dodoaftershipout#1% + {\doifelsevalue{\??pg#1\c!option}\v!doublesided + {\doifbothsidesoverruled + {\dododoaftershipout{#1}} + {\dododoaftershipout{#1}} + {}} + {\dododoaftershipout{#1}}} + +\def\doaftershipout + {\doifsomething\currentpageselection + {\processcommacommand[\currentpageselection]\dodoaftershipout}} + +% Dit wordt eigenlijk nooit en moet worden vervangen door +% het meer algemene mechanisme. + +\def\dopagetype[#1]% + {\edef\desoortpagina{#1}% + \ifx\desoortpagina\empty \else + \@EA\doglobal\@EA\addtocommalist\@EA{\desoortpagina}\currentpageselection + \ifselectingpages + \fullexpandtwoargsafter\doifcommon\desoortpagina\pageselection + {\global\pageselectedtrue}% + \fi + \gdef\beforeshipout{\dobeforeshipout}% + \gdef\aftershipout {\doaftershipout}% + \fi} + +\def\pagetype + {\dosingleargument\dopagetype} + +\def\docouplepage[#1][#2]% + {\getparameters + [\??pg] + [\c!before=, + \c!after=, + \c!option=, + #2]% + \def\docommand##1% + {\getparameters + [\??pg##1] + [\c!before=\@@pgbefore, + \c!after=\@@pgafter, + \c!option=\@@pgoption]}% + \processcommalist[#1]\docommand}% + +\def\couplepage + {\dodoubleargument\docouplepage} + +\def\doprocesspage[#1][#2]% + {\processaction + [#2] + [\v!yes=>\global\processingpagestrue, + \v!no=>\global\processingpagesfalse]% + \gdef\pageselection{#1}% + \global\selectingpagestrue + \global\pageselectedfalse} + +\def\processpage + {\dodoubleargument\doprocesspage} + +\def\resetselectiepagina + {\ifselectingpages + \doifbothsidesoverruled{\global\pageselectedfalse}{}{\global\pageselectedfalse}% + \fi} + +\newif\ifregistertextareas +\newif\iftracetextareas + +\newbox\registertextbox + +% \def\registeredtextarea#1#2#3% #1=lower-dp #2=correct-ht #3=box +% {\hbox{\box#3}} + +\def\enabletextarearegistration{\global\registertextareastrue} + +\def\registeredtextarea#1#2#3% #1=lower-dp #2=correct-ht #3=box + {\hbox\bgroup + \ifregistertextareas \ifx\registerMPtextarea\undefined \else + \setbox\registertextbox\null + \wd\registertextbox\wd#3% + \ht\registertextbox\ht#3% + \dp\registertextbox\dp#3% + \ifcase#1\or % 1 + \setbox\registertextbox\hbox{\lower\strutdp\box\registertextbox}% + \fi + \ifcase#2\or % 1 + \setbox\registertextbox\hbox{\raise\topskip\hbox{\lower\strutht\box\registertextbox}}% + \dp\registertextbox\strutdp + \fi + \dp\registertextbox\strutdp % needed + %\setbox\registertextbox\hbox + % {\iftracetextareas\gray\boxrulewidth2pt\ruledhbox\fi + % {\registerMPtextarea{\box\registertextbox}}}% + \setbox\registertextbox\hbox + {\registerMPtextarea{\box\registertextbox}}% + \smashbox\registertextbox + \box\registertextbox + \fi \fi + \box#3% + \egroup} + +%D \macros +%D {setupoppositeplacing,startopposite} +%D +%D \starttyping +%D \starttext +%D test \startopposite \blackrule[width=3cm,height=4cm] \stopopposite test +%D test \startopposite \blackrule[width=3cm,height=4cm] \stopopposite test +%D \stoptext +%D \stoptyping + +% Moved from page-mar.tex, made english, cleaned up, but still to be +% redesigned + +\newbox\facingpage + +\def\setupoppositeplacing + {\dodoubleargument\getparameters[\??np]} + +\def\startopposite + {\dowithnextboxcontent + {\hsize\makeupwidth}% + {\global\setbox\facingpage\vbox + {\ifvoid\facingpage + \@@npbefore + \else + \@@npinbetween + \unvbox\facingpage + \fi + \box\nextbox}}% + \vbox\bgroup} + +\def\stopopposite + {\egroup} + +\def\finishfacingpage + {\ifvoid\facingpage\else + \global\setbox\facingpage\vbox to \makeupheight + {\unvbox\facingpage + \@@npafter + \vss}% + \fi} + +\def\shipoutfacingpage + {\doif\@@npstate\v!start + {\ifvoid\facingpage\else + \ifnum\realpageno>\plusone + \bgroup + \chardef\pageornamentstate\plusone + \finishfacingpage + \myshipout{\buildpagebody\box\facingpage}% + \egroup + \else + \global\setbox\facingpage\emptybox + \fi + \fi}} + +\setupoppositeplacing + [\c!state=\v!start, + \c!before=, + \c!inbetween=\blank, + \c!after=] + +\protect \endinput |