[NTG-context] How to place "Content" and other chapter-level titles the same vertical distance from the top?

[Taco Hoekwater]

> On 9 May 2022, at 09:45, Denis Maier via ntg-context <ntg-context at ntg.nl> wrote:
> 
> This example from the wiki does not run anymore with LMTX:

Still worked ok in:  ConTeXt  ver: 2022.04.19 19:53 LMTX

> You get the error message:
> I've run across a '}' that doesn't seem to match anything. For example,
> '\def\a#1{...}' and '\a}' would produce this error. The '\par' that I've just
> inserted will cause me to report a runaway argument that might be the root of the
> problem.
> 
> Maybe some expansion thing. Don't know, but consider this :
> 
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> \setuppapersize[A6][A6] 
> \setupbodyfont[8pt] 
> \define[2]\MyChapterCommand{#1 #2} % does work
> %\def\MyChapterCommand#1#2{#1 #2} % does not work
> \setuphead[chapter][ 
>        command=\MyChapterCommand, 
>        ] 
> \starttext 
> \startchapter{test} 
> \input tufte 
> \stopchapter 
> \stoptext
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> 
> So, this here should get you started:
> 
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> 
> \showframe
> \setuppapersize[A6][A6]
> \setupbodyfont[8pt]
> \define[2]\MyChapterCommand%
>  {\vbox to 15mm\bgroup
>    \vss
>    {#1\blank #2}
>    \egroup}
> \define[1]\MyTitleCommand%
>  {\vbox to 15mm\bgroup
>    \vss
>    {#1}
>    \egroup}
> 
> \setuphead[chapter][command=\MyChapterCommand]
> \setuphead[title][command=\MyTitleCommand]
> \starttext
> \chapter{test} \input tufte
> \title{test} \input tufte
> \stoptext
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> 
> I bet there are easier solutions, maybe use framed instead of vbox.
> 
> Denis
> 
> 
>> 
>> ________________________________________
>> Von: Maier, Denis Christian (UB)
>> Gesendet: Sonntag, 8. Mai 2022 09:24:51
>> An: mailing list for ConTeXt users
>> Cc: Joel
>> Betreff: AW: [NTG-context] How to place "Content" and other chapter-level
>> titles the same vertical distance from the top?
>> 
>> Maybe define your own chapter command and use a vbox.
>> Look at this example from the wiki:
>> 
>> \setuppapersize[A6][A6]
>> \setupbodyfont[8pt]
>> \def\MyChapterCommand#1#2%
>>  {\vbox to 4cm\bgroup
>>     {#1\hskip.75em #2}
>>     \vss
>>     \egroup}
>> \setuphead[chapter][header=nomarking, command=\MyChapterCommand]
>> \starttext \chapter{test} \input tufte \stoptext
>> 
>> That's not exactly what you want, but you can adapt it.
>> 
>> Denis
>> ________________________________________
>> Von: ntg-context <ntg-context-bounces at ntg.nl> im Auftrag von Joel via ntg-
>> context <ntg-context at ntg.nl>
>> Gesendet: Sonntag, 8. Mai 2022 04:49:32
>> An: ntg-context at ntg.nl
>> Cc: Joel
>> Betreff: [NTG-context] How to place "Content" and other chapter-level titles
>> the same vertical distance from the top?
>> 
>> I created a chapter title style with a large number telling the chapter number,
>> and below it the title of the chapter.
>> 
>> It looks like this:
>> 
>> ---------------------
>>        1               <--really big chapter number
>> =========== <-- there is a border created by a background image between
>> these
>>    How to keep  <--chapter title
>>    fish
>> 
>> This is the article <-- the article begins about how to keep fish
>> ---------------------
>> 
>> \definefontsize[a]%
>> \definefontsize[b]%
>> \definefontsize[c]%
>> \definefontsize[l]%
>> \setupbodyfontenvironment[default]%
>>    [%
>>        a=1.200,
>>        b=1.440,
>>        c=1.728,
>>        l=8.916
>>    ]%
>> %
>> 
>> \setuplabeltext[chapter=\strut]
>> \setuphead[chapter][style=\ssc,placehead=yes,expansion=yes,page=yes,
>> numbercommand=\groupedcommand{}{\blank[1cm]},
>> alternative=middle,
>> numberstyle=ssl,
>> numbercolor=green,
>> strut=yes]
>> 
>> \starttext
>> 
>>    \completecontent
>> 
>>    \chapter{Test}
>>        \input knuth
>> 
>>    \chapter{Test}
>>        \input knuth
>> 
>> \stoptext
>> 
>> The problem I'm facing, is anytime a chapter title is called, such as "Content"
>> in complete content, or something in the appendix, such as one of the
>> indexes, no number is printed above, so the vertical distance from the top of
>> the page to the top of the chapter title changes. I need these to be
>> consistent, as there is a background image, with vertical lines.
>> 
>> Basically, if I call \chapter{}, it appears perfectly aligned vertically on the
>> page, with no other settings. But when calling \completecontent or a similar
>> title that won't get a number, because the number isn't placed, it is vertically
>> higher on the page, but I need it to be printed the same height, as it it had an
>> invisible number.
>> 
>> I've tried adding strut (the code has it in two places), but don't know if I've
>> used it appropriately, and it didn't solve the problem.
>> 
>> --Joel
> ___________________________________________________________________________________
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> 
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> ___________________________________________________________________________________

— 
Taco Hoekwater              E: taco at bittext.nl
genderfluid (all pronouns)