From: Hans Hagen <pragma@wxs.nl>
To: ntg-context@ntg.nl
Subject: Re: Problem with margin figures and whitespace in text
Date: Sun, 26 Apr 2015 20:01:00 +0200 [thread overview]
Message-ID: <553D27DC.9050208@wxs.nl> (raw)
In-Reply-To: <553C401B.9050406@rik.users.panix.com>
On 4/26/2015 3:32 AM, Rik Kabel wrote:
> I have two problems with figures placed into the left or right margin.
> When the figure is in a group, extra whitespace is inserted between the
> paragraphs that precede and follow the placefigure command. This happens
> for figures placed by startplacefigure/stopplacefigure and tradiitonal
> placefigure commands, and paragraphs placed by
> startparagraph/stopparagraph or marked by par or newlines.
>
> When the figure is not in a group, whitespace called for by
> \setupwhitespace is lost, except when the paragraphs are marked by
> traditional means. That is, whitespace is lost when
> startparagraph/stopparagraph is used.
>
> Interestingly, when that is changed to bpar/epar, the problem for
> ungrouped figures disappears, but as I understand it, bpar/epar is not a
> real substitute for startparagraph/stopparagraph.
>
> There is probably a simple explanation, but it eludes me. I prefer to be
> able to use startparagraph/stopparagraph, and it is sometimes desirable
> to place a figure into a group in order to prevent unique settings from
> leaking out.
you can test with this in cont-new.mkiv
\unprotect
\def\page_sides_inject_dummy_lines
{\begingroup
\scratchcounter\pageshrink
\divide\scratchcounter \baselineskip
\advance\scratchcounter \plusone
\parskip\zeropoint
\dorecurse\scratchcounter{\hbox to \hsize{}}%
\kern-\scratchcounter\baselineskip
\penalty\zerocount
\endgroup}
\def\page_sides_prepare_space
{\par
%\whitespace
\begingroup
\forgetall
\reseteverypar
\verticalstrut
\vskip-\struttotal
\endgroup}
\protect
> The following should demonstrate the problem. Turning on grid setting
> makes it worse. I get the same result with current betas and older versions.
>
> \useMPlibrary [dum]
> %\showgrid
> \setuplayout [%grid=yes,
> backspace=151pt,leftmargin=117pt]
> \setupwhitespace[big]
> \define\Paragraph{\startparagraph\input khatt-en\stopparagraph}
> \starttext
> {
> \subject{Start/stop paragraphs and figures}
> \subsubject{Group, extra whitespace}
> \Paragraph
> \Paragraph
> \begingroup
> \startplacefigure[location={leftmargin,none}]
> \externalfigure[A]
> \stopplacefigure
> \endgroup
> \Paragraph
> \Paragraph
> \subsubject{No group, no whitespace}
> \Paragraph
> \Paragraph
> \startplacefigure[location={leftmargin,none}]
> \externalfigure[A]
> \stopplacefigure
> \Paragraph
> \Paragraph
> \Paragraph
> }
> \page
> {
> \subject{Start/stop paragraphs, traditional figures}
> \subsubject{Group, extra whitespace}
> \Paragraph
> \Paragraph
> {\placefigure[leftmargin,none]{}{\externalfigure[A]}}
> \Paragraph
> \Paragraph
> \subsubject{No group, no whitespace}
> \Paragraph
> \Paragraph
> \placefigure[leftmargin,none]{}{\externalfigure[A]}
> \Paragraph
> \Paragraph
> \Paragraph
> }
> \page
> {
> \subject{Traditional paragraphs, start/stop figures}
> \subsubject{Group, extra whitespace}
> \input khatt-en\par
> \input khatt-en\par
> \begingroup% or \bgroup or {
> \startplacefigure[location={leftmargin,none}]
> \externalfigure[A]
> \stopplacefigure
> \endgroup% or \egroup or }
> \input khatt-en\par
> \input khatt-en\par
> \subsubject{Okay}
> \input khatt-en\par
> \input khatt-en\par
> \startplacefigure[location={leftmargin,none}]
> \externalfigure[A]
> \stopplacefigure
> \input khatt-en\par
> \input khatt-en\par
> \input khatt-en\par
> }
> \page
> {
> \subject{Traditional paragraphs, traditional figures}
> \subsubject{Group, extra whitespace}
> \input khatt-en\par
> \input khatt-en\par
> {\placefigure[leftmargin,none]{}{\externalfigure[A]}}
> \input khatt-en\par
> \input khatt-en\par
> \subsubject{Okay}
> \input khatt-en\par
> \input khatt-en\par
> \placefigure[leftmargin,none]{}{\externalfigure[A]}
> \input khatt-en\par
> \input khatt-en\par
> \input khatt-en\par
> }
> \stoptext
>
> --
> Rik
>
>
> ___________________________________________________________________________________
> 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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Hans Hagen | PRAGMA ADE
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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
___________________________________________________________________________________
next prev parent reply other threads:[~2015-04-26 18:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-26 1:32 Rik Kabel
2015-04-26 18:01 ` Hans Hagen [this message]
2015-04-26 19:49 ` Rik Kabel
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