[NTG-context] Recomputing useMPgraphic in footers

2005-05-09 Thread David Antos 

Hello,

I have

\defineoverlay[Wave][\useMPgraphic{Wave}]

\startuseMPgraphic{Wave}
...
\stopuseMPgraphic

\setupbackgrounds[footer][text][background={Wave}]

The problem is that the graphics is not re-computed on every page,
although I pretty convinced it should.

On the opposite, when I set
\setupbackgrounds[text][text][background={Wave}]
it works perfectly well. (The difference is in [footer] vs. [text].)

An ugly workaround is to call \setupbackgrounds on every page, but it's
not nice at all. What went wrong?

Thanks,
D.A.

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Re: [NTG-context] Recomputing useMPgraphic in footers

2005-05-09 Thread Hans Hagen 
David Antos wrote:
Hello,
I have
\defineoverlay[Wave][\useMPgraphic{Wave}]
\startuseMPgraphic{Wave}
...
\stopuseMPgraphic
\setupbackgrounds[footer][text][background={Wave}]
The problem is that the graphics is not re-computed on every page,
although I pretty convinced it should.
On the opposite, when I set
\setupbackgrounds[text][text][background={Wave}]
it works perfectly well. (The difference is in [footer] vs. [text].)
An ugly workaround is to call \setupbackgrounds on every page, but it's
not nice at all. What went wrong?
as already mentioned (by taco): \setupbackgrounds[state=repeat]
only page and text area backgrounds are recalculated each page (otherwise the 
speed penalty is too big]

an option is to do something:
\setupbackgrounds[page][background=PageBackground]
\defineoverlay[PageBackground][\reuseMPgraphic{PageBackground}]
\startreusableMPgraphic{PageBackground}
  StartPage ;
fill Field[Text][Footer] withcolor red ;
  StopPage ;
\stopreusableMPgraphic
(see metafun manual for details on the page stuff)
Hans
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  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
 tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
 | www.pragma-pod.nl
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