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

[denis.maier at unibe.ch]

This example from the wiki does not run anymore with 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