Am 03.07.2014 um 17:55 schrieb Chris Chapman <ch...@pentandra.com>:
> I am new to ConTeXt (coming from LaTeX), and am really impressed. Great work!
>
> I am working on a document that has layers that I want to be screen-only,
> similar in approach to this:
> http://tex.stackexchange.com/questions/167846/implementing-full-page-screen-only-print-only-in-pdf
>
> I am assuming that Optional Content Groups would be the best way to do this.
> How would I set something up like this in ConTeXt/LuaTeX? I know I could make
> a screen-only version and a print version of the output pdf, but I want to
> have my cake and eat it too ;)
You can test if the layers are hidden when you print the following example, I
tried the Adobe Reader on my Mac and they where still visible.
\setupinteraction[state=start]
\defineoverlay[PageBackground] [\startMPcode fill fullsquare
xyscaled(OverlayWidth,OverlayHeight) withcolor \MPcolor{orange} ; \stopMPcode]
\defineoverlay[FrameBackground][\startMPcode fill fullsquare
xyscaled(OverlayWidth,OverlayHeight) withcolor \MPcolor{green} ; \stopMPcode]
%\setupbackgrounds[page][background=color,backgroundcolor=orange] % doesn’t
work because you can only hide the background together with the text
\setupbackgrounds[page][background=PageBackground]
\setupviewerlayer[printable=no]
\defineviewerlayer[mylayer]
%\showlayoutcomponents % use this to enable/disable certain text areas
\starttext
\input knuth
\startviewerlayer[mylayer]
\input ward
\stopviewerlayer
\input tufte
\startframedtext[width=max,background=FrameBackground]
\input weisman
\stopframedtext
\stoptext
Wolfgang
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