Thanks to Taco, Robbert and Jules for their work!
I used the downtime to setup a presentation style with a progress bar in
the footer. But I get the same (first page) graphics on all pages, and
the footer background appears under the text area as well as under the
margins.
* I thought \useMPgraphics would be enough to re-calculate on every page?
* How can I set a background to the footer area, but page width?
* I tried \overlaywidth as well as OverlayWidth in the MP graphic – how
do I get the page size?
"""
\setuppapersize[SW]
\startuseMPgraphic{Blocks}
fill unitsquare xysized (800 * RealPageNumber/NOfPages, 50) withcolor blue;
\stopuseMPgraphic
\defineoverlay[Blocks][\useMPgraphic{Blocks}]
\setupbackgrounds[footer][background={Blocks}]
\starttext
\dorecurse{10}{\recurselevel\page}
\stoptext
"""
Hraban
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage : https://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : https://contextgarden.net
___________________________________________________________________________________