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diff --git a/doc/context/sources/general/manuals/notnow/notnow.tex b/doc/context/sources/general/manuals/notnow/notnow.tex new file mode 100644 index 000000000..e1768db41 --- /dev/null +++ b/doc/context/sources/general/manuals/notnow/notnow.tex @@ -0,0 +1,175 @@ +% language=uk + +\usemodule[typesetting] + +\defineexternalfigure + [typesetting] + [frame=on, + framecolor=darkblue, + rulethickness=1pt] + +\setupcombination + [twopages] + [style=bold, + color=darkblue] + +\setupbodyfont + [ebgaramond,14.4pt] + +\setuphead + [chapter] + [style=\bfc, + header=empty, + color=darkblue] + +\setuplist + [chapter] + [alternative=c, + width=1.5em] + +\setuplayout + [width=middle, + height=middle, + topspace=15mm, + backspace=15mm, + header=15mm, + footer=0mm] + +\setupwhitespace + [big] + +\setuptype + [color=darkblue] + +\setuptyping + [color=darkblue] + +\setuppagenumbering + [alternative=doublesided] + +% \showframe + +\startdocument[author=Hans Hagen] + +\definefont[NotNow][Serif*default @ 18pt]% +\definefont[NotNot][Serif*default @ 2.5pt]% + +\startpagemakeup[pagestate=stop] + \scale[width=\paperwidth,height=\paperheight] \bgroup + \bTABLE[strut=no,height=29.7pt,width=21pt,align={lohi,middle},foregroundcolor=white,framecolor=white,background=color] + \bTR + \bTD[backgroundcolor=darkblue] \NotNow W \eTD + \bTD[backgroundcolor=darkgray] \NotNow H \eTD + \bTD[backgroundcolor=darkblue] \NotNow Y \eTD + \eTR + \bTR + \bTD[backgroundcolor=darkgray] \NotNow N \eTD + \bTD[backgroundcolor=darkblue] \NotNow O \eTD + \bTD[backgroundcolor=darkgray] \NotNow T \eTD + \eTR + \bTR + \bTD[backgroundcolor=darkblue] \NotNow N \eTD + \bTD[backgroundcolor=darkgray] \NotNow O \eTD + \bTD[backgroundcolor=darkblue] \NotNow W \eTD + \eTR + \eTABLE + \egroup +\stoppagemakeup + +\starttitle[title=Contents] + + \placelist[chapter] + +\stoptitle + +\startchapter[title=Introduction] + +You can do a lot in \CONTEXT\ but for sure there are limitations too. There are +quite some sub|-|mechanisms and sometimes there are more solutions for one +problem. For instance, we have several table mechanisms and several +multi|-|column mechanisms. In this document we will collect information about +what doesn't work (well) and if possible indicate why. Feel free to submit more +items. We will also discuss features that do work in most cases but are somewhat +unreliable. + +Does that mean that we cannot make everything work? No, sometimes demands are too +conflicting. Yes, we can implement more, but it simply doesn't pay off to spend +time on writing code that is used seldom. Keep in mind that much of \CONTEXT\ is +written in spare time without any compensation. Publishers have demands but +seldom are willing to pay for it. Users have demands and no means to pay for it. +On the other hand, user demands often have challenging properties that trigger +development. Sometimes a project has as side effect that some mechanism become +better. + +The good news that one can often work around it. Not all typesetting has to be +fully automatic. And there are always reasonable typographic alternatives. The +examples shown here can be run on your machine. + +\stopchapter + +\startchapter[title=Columns and notes] + +Because \TEX\ doesn't really support columns we need to cook up some magic to +achieve them. Especially a mix between single and multi|-|columns is sort of +tricky. Because notes are inserts and inserts play a role in determining the +optimal breakpoints they can interfere badly, depending on the mechanism used. In +\CONTEXT\ we use mixed columns for multi|-|column itemizations and as these can +have footnotes you can end up in troubles. + +\typefile{notnow-columns-and-notes.tex} + +In such case the notes are postponed and flushed {\em after} the itemized list so +they can end up on a next page. If this happens depends on how much room there is +on the page. Solutions are possible (and the old \MKII\ column handler might +behave better in some cases) but it's not worth the trouble to complicate the +already complex code more than needed. Also, it will never be perfect anyway. + +\FirstPages{notnow-columns-and-notes} + +\stopchapter + +\startpagemakeup[pagestate=stop,page=left,doublesided=no] + \scale[width=\paperwidth,height=\paperheight] \bgroup + \bTABLE[strut=no,height=29.7pt,width=21pt,align={lohi,middle},foregroundcolor=white,framecolor=white,background=color] + \bTR + \bTD[backgroundcolor=darkblue] \eTD + \bTD[backgroundcolor=darkgray] \eTD + \bTD[backgroundcolor=darkblue] \eTD + \eTR + \bTR + \bTD[backgroundcolor=darkgray] \eTD + \bTD[backgroundcolor=darkblue] \eTD + \bTD[backgroundcolor=darkgray] \eTD + \eTR + \bTR + \bTD[backgroundcolor=darkblue] \eTD + \bTD[backgroundcolor=darkgray] \eTD + \bTD[backgroundcolor=darkblue,foregroundstyle=\NotNot] + Hans Hagen \vfilll PRAGMA ADE \vfilll Hasselt NL + \eTD + \eTR + \eTABLE + \egroup +\stoppagemakeup + +\startchapter[title=Sidefloats] + +Support for side floats is non|-|trivial and no solution will serve all intended +usage. Over the years we have improved on border cases but it is still not +perfect. For that reason the implementation is (apart from solving bugs, mostly) frozen. +Here is an example of a use case that we ran into. We manipulate the spacing with +an offset parameter. + +\typefile{notnow-sidefloats.tex} + +You can best play with these parameters and see what they do. If you use this +mechanism in a long term project, use a frozen instance of \CONTEXT ! + +\TwoPages{notnow-sidefloats} + +The second pages has preceding and trailing whitespace outside the sidefloat +flow. + +\stopchapter + +\stopdocument |