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From: Henning Hraban Ramm via ntg-context <ntg-context@ntg.nl>
To: ntg-context@ntg.nl
Cc: Henning Hraban Ramm <texml@fiee.net>
Subject: Re: number of chapters
Date: Wed, 20 Jul 2022 09:40:13 +0200	[thread overview]
Message-ID: <8cca9355-4a69-95da-e88a-24e9fd292637@fiee.net> (raw)
In-Reply-To: <5ca6fc69-cc49-4629-d2aa-d94bb2e40f41@fiee.net>

Am 20.07.22 um 09:06 schrieb Henning Hraban Ramm via ntg-context:
> Hi,
> 
> how do I access the current chapter number and the number of chapters 
> (including appendixes; after the first run)?
> 
> I’d like to setup a chapter color like
> 
> \definecolor[ChapterColor][
>    s=1,v=1,
>    h=360*\namedstructurevariable{chapter}{number}/\numberofchapters,
> ]
> 
> and use it for a thumb index...
> 
> (I can’t access the wiki ATM; downforeveryoneorjustme.com says it would 
> be just me.)

Ok, I can access the wiki via Tor and found

\somenamedheadnumber{chapter}{current}
\somenamedheadnumber{chapter}{last}

or

\someheadnumber[chapter][current]
\someheadnumber[chapter][last]

What’s the difference?

And even if I use \definecolor within a setup, I get the same color for 
every chapter – how and where must I delay expansion?

\usemodule[visual]

\startsetups[MyChapterSetup]
\definecolor[MyChapterColor][h={360*\somenamedheadnumber{chapter}{current}/\somenamedheadnumber{chapter}{last}},s=1,v=1]
\definecolor[fakerulecolor][MyChapterColor]
\setuphead[chapter][color=MyChapterColor]
\stopsetups

\unexpanded\def\MyChapter#1{
   \setup{MyChapterSetup}
   \color[MyChapterColor]{#1}
}

\setuphead[chapter][page=no,textcommand=\MyChapter]

\starttext

\dorecurse{20}{
\chapter{\fakewords{1}{5}}
\fakewords{10}{50}
}

\stoptext


Hraban


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  reply	other threads:[~2022-07-20  7:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-20  7:06 Henning Hraban Ramm via ntg-context
2022-07-20  7:40 ` Henning Hraban Ramm via ntg-context [this message]
2022-07-20  7:47   ` Taco Hoekwater via ntg-context
2022-07-20  8:02     ` Henning Hraban Ramm via ntg-context

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