Background for current page only

Background for current page only

[Khaled Hosny]

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How to set a background for the current page only? \setupbackgrounds
sets backgrounds for all pages, I don't seem to find a way to turn it
on/off for certain pages (\setupbackgrounds[state=start/stop] has no
effect).

Regards,
 Khaled


-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer

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Re: Background for current page only

[Hans Hagen]

Khaled Hosny wrote:
> How to set a background for the current page only? \setupbackgrounds
> sets backgrounds for all pages, I don't seem to find a way to turn it
> on/off for certain pages (\setupbackgrounds[state=start/stop] has no
> effect).

state=start|stop|repeat

by default the one for the page is repeat

\setupbackgrounds[page][state=...]
\setupbackgrounds[leftpage][state=...]
\setupbackgrounds[rightpage][state=...]

etc


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Re: Background for current page only

[Khaled Hosny]

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On Fri, Apr 03, 2009 at 11:19:07PM +0200, Hans Hagen wrote:
> Khaled Hosny wrote:
>> How to set a background for the current page only? \setupbackgrounds
>> sets backgrounds for all pages, I don't seem to find a way to turn it
>> on/off for certain pages (\setupbackgrounds[state=start/stop] has no
>> effect).
>
> state=start|stop|repeat
>
> by default the one for the page is repeat
>
> \setupbackgrounds[page][state=...]
> \setupbackgrounds[leftpage][state=...]
> \setupbackgrounds[rightpage][state=...]
>
> etc

I think I missing something here, in the following example I expect the
2nd page (and any subsequent page) not to have a background, but that is
not what I get. I tried every combination of state=start|stop|repeat,
but nothing seem to change at all.

\setupcolors[state=start]
\setupbackgrounds[page][background=color,backgroundcolor=lightgray]

\starttext
\setupbackgrounds[page][state=start]
\input tufte
\page
\setupbackgrounds[page][state=stop]
\input tufte
\stoptext

Regards,
 Khaled


-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer

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\setupcolors[state=start]
\setupbackgrounds[page][background=color,backgroundcolor=lightgray,state=repeat]

\starttext
\setupbackgrounds[page][state=start]
\input tufte
\page
\setupbackgrounds[page][state=stop]
\input tufte
\stoptext

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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: Background for current page only

[Wolfgang Schuster]

Am 03.04.2009 um 22:54 schrieb Khaled Hosny:

> How to set a background for the current page only? \setupbackgrounds
> sets backgrounds for all pages, I don't seem to find a way to turn it
> on/off for certain pages (\setupbackgrounds[state=start/stop] has no
> effect).


Tricky thing, here is a (not so) quick and dirty solution.

\unprotect

\let\!!savedbackgroundcolor\empty

\def\onbackground
   {\globallet\@@mapagebackgroundcolor\!!savedbackgroundcolor}

\def\offbackground
   {\globallet\!!savedbackgroundcolor\@@mapagebackgroundcolor
    \globalletempty\@@mapagebackgroundcolor}

\def\nobackground
   {\globallet\@@mapagebackgroundcolor\!!savedbackgroundcolor
    \globalletempty\@@mapagebackgroundcolor
    \appendtoks\globallet\@@mapagebackgroundcolor\!! 
savedbackgroundcolor\to\afterpage}

\def\gobackground
   {\globallet\@@mapagebackgroundcolor\!!savedbackgroundcolor
    \appendtoks\globalletempty\@@mapagebackgroundcolor\to\afterpage}

\protect

\setupcolors[state=start]
\setupbackgrounds[page][background=color,backgroundcolor=lightgray] 
\offbackground

\starttext
\input tufte
\page
\gobackground
\input tufte
\page
\input tufte
\stoptext

Wolfgang

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___________________________________________________________________________________

Re: Background for current page only

[Khaled Hosny]

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On Sat, Apr 04, 2009 at 10:45:09AM +0200, Wolfgang Schuster wrote:
>
> Am 03.04.2009 um 22:54 schrieb Khaled Hosny:
>
>> How to set a background for the current page only? \setupbackgrounds
>> sets backgrounds for all pages, I don't seem to find a way to turn it
>> on/off for certain pages (\setupbackgrounds[state=start/stop] has no
>> effect).
>
>
> Tricky thing, here is a (not so) quick and dirty solution.

Thanks, that was of great help!

Regards,
 Khaled


-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer

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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  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________