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
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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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