From: Aditya Mahajan <adityam@umich.edu>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Bug with adaptlayout
Date: Sat, 14 Sep 2013 17:31:47 -0400 (EDT) [thread overview]
Message-ID: <alpine.LNX.2.02.1309141731330.14829@ybpnyubfg.ybpnyqbznva> (raw)
In-Reply-To: <5232D37B.9010902@wxs.nl>
On Fri, 13 Sep 2013, Hans Hagen wrote:
> On 9/13/2013 4:40 AM, Aditya Mahajan wrote:
>> Hi,
>>
>> There is a subtle bug with \adaptlayout.
>>
>> \adaptlayout[1][height=max] does not work, e.g.,
>>
>> \showframe
>> \adaptlayout[1][height=max]
>> \starttext
>> \dorecurse{10}{\input knuth \par}
>> \stoptext
>>
>> but \adaptlayout[2][..] etc work. The reason is the following.
>> Typically, we use \adaptlayout[...][...] before \starttext at which
>> point \realpageno=1.
>>
>> Now, \page_adapts_layout calls \page_adopts_check which checks if
>> "\??pageadaptions\the\realpageno" is set. If so, it calls the
>> pageadaptions and resets it to relax.
>>
>> Since all this happens before \starttext, it does not affect the first
>> page.
>>
>> I am not sure what is the best way to fix this.
>
> \unprotect
>
> \def\page_adapts_check
>
> {\csname\??pageadaptations\the\ifcsname\??pageadaptations\the\realpageno\endcsname\realpageno\else\zerocount\fi\endcsname}
>
> \def\page_adapts_reset
> {\ifcsname\??pageadaptations\the\realpageno\endcsname
> \global\undefinevalue{\??pageadaptations\the\realpageno}%
> \fi}
>
> \appendtoks \page_adapts_check \to \everystarttext
> \appendtoks \page_adapts_reset \to \everyshipout
>
> \protect
Thanks.
Aditya
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prev parent reply other threads:[~2013-09-14 21:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-13 2:40 Aditya Mahajan
2013-09-13 8:57 ` Hans Hagen
2013-09-14 21:31 ` Aditya Mahajan [this message]
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