The wiki shows two thumbnail samples. I like the
first one. But I want to use MKIV. When I do the
first sample blows up on the second chapter entry.
Obviously there is some code in sample 1 that
doesn't work under MKIV.
By a process of elimination it centers on the
thumbnail description proper. The file looks
like this:
---------------------------------------------------
\unprotected
\def\rawsectionnumber#1{\countervalue{\??se#1}}%will be in kernel
\setuppagenumbering
[alternative=doublesided]
\setupcolors
[state=start]
\setupbackgrounds
[page]
[background=thumbs]
\defineoverlay
[thumbs]
[\setups{thumbs}]
\def\NOfChapters{4} % i need to make this one available
\startsetups thumbs
\definemeasure[thumbheight][\dimexpr\paperheight/\NOfChapters\relax]
\vbox to \paperheight \bgroup
\vskip \rawsectionnumber{section-2}
\measure{thumbheight} \vskip
-1
\measure{thumbheight}
\doifoddpageelse\hfill\donothing \framed
[background=color, backgroundcolor=darkgray,
frame=off,
foregroundcolor=white,
height=\measure{thumbheight},width=1cm]
{\bfa \rawsectionnumber{section-2}}
\doifoddpageelse\donothing\hfill
\vss
\egroup
\stopsetups
\starttext
\chapter{first} \dorecurse{10}{\input tufte }
\chapter{second} \dorecurse{10}{\input davis }
\chapter{third} \dorecurse{10}{\input zapf }
\chapter{fourth} \dorecurse{10}{\input bryson }
\stoptext
-----------------------------------------------
It works under MKII but not under MKIV. The error
message occurs after the first chapter. But the
chapters by themselves work OK.
I will continue to experiment----
--
John Culleton
Wexford Press
Free list of books for self-publishers:
http://wexfordpress.net/shortlist.html
PDF e-book: "Create Book Covers with Scribus"
available at
http://www.booklocker.com/books/4055.html
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