Am 08.11.2012 um 00:29 schrieb Marco Patzer <home...@lavabit.com>:
> Hi!
>
> How do I highlight the current chapter in the table of contents? The
> TOC is displayed on each page. For illustration I misused the
> interaction colour, which of course only works for the first page of
> a chapter.
>
> \setupheadertexts
> [\setups{headlist}]
>
> \startsetups [headlist]
> \framed[align=normal, frame=off]
> {\placelist [chapter] [alternative=f, criterium=all]}
> \stopsetups
>
> \setupinteraction
> [state=start,
> color=lightgray,
> contrastcolor=darkgreen]
>
> \starttext
> \startchapter [title=alpha] \stopchapter
> \startchapter [title=beta] \page\input knuth \stopchapter
> \startchapter [title=gamma] \stopchapter
> \stoptext
You can use the marking mechanism to get the title of the current chapter.
The problem for the solution below is to get a expandable version of the
list entry because \currentlistentrytitle itself isn’t expandable and can’t
be used in \doifelse. Instead of using \ctxcommand better ask Hans for
a raw/expandable version of the tile/pagenumber commands.
\setupheadertexts
[\setups{headlist}]
\startsetups [headlist]
\framed[align=normal, frame=off]
{\placelist [chapter] [alternative=highlight, criterium=all]}
\stopsetups
\definelistalternative
[highlight]
[renderingsetup=list:highlight]
\startsetups [list:highlight]
\par
\startlinealignment[middle]
\doifelse{\fetchmark[chapter][first]}{\currentlistentrytitle}
%\doifelse{\fetchmark[chapter][first]}{\ctxcommand{listtitle("\currentlist",\currentlistindex)}}
{\color[red] {\currentlistentrytitle}}
{\color[blue]{\currentlistentrytitle}}
\stoplinealignment
\par
\stopsetups
\setupinteraction
[state=start,
color=lightgray,
contrastcolor=darkgreen]
\starttext
\startchapter [title=alpha] \stopchapter
\startchapter [title=beta] \page\input knuth \stopchapter
\startchapter [title=gamma] \stopchapter
\stoptext
Wolfgang
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