how to implement buttons, navigator in context's presentation

how to implement buttons, navigator in context's presentation

[土卜皿]

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hi, all
   in Hans Hagen's "Metafun context
mkiv<http://www.pragma-ade.com/general/manuals/metafun-s.pdf>"
page 208, there is some buttons example, I want to know how to implement a
complete buttons in context, Thanks in advance!

  another, in Presentations (screen documents) <http://Presentations
(screen documents)>, there is three examples, but they are not able to be
compiled by the latest context version 2012.12.28 20:30, I hope to get some
advanced examples

  Thanks!

BEST REGARDS
PengCZ

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If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
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Re: how to implement buttons, navigator in context's presentation

[Wolfgang Schuster]

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Am 07.01.2013 um 18:33 schrieb 土卜皿 <pengcz.nwpu@gmail.com>:

> hi, all
>    in Hans Hagen's "Metafun context mkiv" page 208, there is some buttons example, I want to know how to implement a complete buttons in context, Thanks in advance!
> 
>   another, in Presentations (screen documents), there is three examples, but they are not able to be compiled by the latest context version 2012.12.28 20:30, I hope to get some advanced examples

Can be a problem with uniqueMPgraphic because useMPgraphic works.

\startuseMPgraphic{wrong or right}
	pickup pencircle scaled 3pt ;
	path p ; p := unitsquare
		xscaled OverlayWidth yscaled OverlayHeight ;
	fill p withcolor .8white ;
	draw p withcolor .625red ;
\stopuseMPgraphic

\defineoverlay[button][\useMPgraphic{wrong or right}]
\setupbuttons[background=button,frame=off]

\setupinteraction[state=start]

\starttext

\completecontent

\page

\hbox
  {\button {previous}          [previouspage]\quad
   \button {next}              [nextpage]\quad
   \button {index}             [index]\quad
   \button {table of contents} [content]}

\completeindex

\stoptext

Wolfgang


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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________