[NTG-context] compatibility between \startshapetext and \startsection ?

[NTG-context] compatibility between \startshapetext and \startsection ?

[garulfo]

Hi all,

\startshapetext works pretty well, but when I use \startsection \stopsection, shapes are not respected  anymore.
I use layers, to be able to place the content anywhere, but the issue remains without layers.

Any clues ?
(\placeinitial seems also to break the shaping)


Example : 2 pages without sectioning, and after 2 pages by uncommenting the \startsection and \stopsection commands.


\setupbodyfont [pagella, 8pt]
\setupframed
  [frame=on,
   offset=0.000pt,
   rulethickness=0.000pt,
   location=top,
   align=normal,
   strut=yes,
   ]
\setuplayout [grid=yes]
\setupinteraction [state=start]

%------------------------------------------------------------------------------

\definemeasure [myheight]     [{\the\dimexpr\baselineskip*33+\lineskip\relax}]
\definemeasure [myheighta]    [{\the\dimexpr\baselineskip*10+\lineskip*2\relax}]
\definemeasure [myheightb]    [{\the\dimexpr\baselineskip*20-\lineskip*2\relax}]

\startuseMPgraphic{mp1}
  path p ;
  numeric myheight  ; myheight := \measure{myheight};
  numeric myheighta ; myheighta := \measure{myheighta};
  numeric myheightb ; myheightb := \measure{myheightb};
  p := (0,0) -- (6cm,0) --
       (6cm,myheighta) -- (4cm,myheighta) -- (4cm,myheightb) -- (6cm,myheightb) --
       (6cm,myheight) -- (0cm,myheight) -- cycle;
  build_parshape(p,0,0,0,\baselinedistance,\strutheight,\strutdepth,\topskip) ;
  fill p withcolor \MPcolor{lightyellow};
\stopuseMPgraphic

\defineoverlay[ol1][\useMPgraphic{mp1}]


%==============================================================================
\starttext
%==============================================================================

{\sc\bfd Version A, without sectionning, pages 1\ampersand 2}

\startshapetext[mp1, mp1, mp1, mp1, mp1, mp1]
\setupalign[hz,hanging,verytolerant,stretch,normal]%
\setupindenting[yes,small]%
\strut%
\reference[myref1]{MyRef1}Here is the first reference.\par
See reference \in[myref2] on \at{page}[myref2]\par
%
\dorecurse{5}{
%\startsection[title={Title for section{\recurselevel}}]
\darkred\input knuth \par
\darkblue\input ward
%\stopsection
}

\reference[myref2]{MyRef2} Here is the second reference.\par
See reference \in[myref1] on \at{page}[myref1]\par

\stopshapetext

\definelayer[testA]

\setlayer[testA][x=-1cm,y=3cm]{\framed[background=ol1]{\strut\getshapetext}}
\setlayer[testA][x=9cm,y=3cm] {\framed[background=ol1]{\strut\getshapetext}}
\flushlayer[testA]

\page

\setlayer[testA][x=-1cm,y=3cm]{\framed[background=ol1]{\strut\getshapetext}}
\setlayer[testA][x=9cm,y=3cm] {\framed[background=ol1]{\strut\getshapetext}}
\flushlayer[testA]

\page
%==============================================================================

{\sc\bfd Version B, with sectionning, pages 3\ampersand 4}

\startshapetext[mp1, mp1, mp1, mp1, mp1, mp1]
\setupalign[hz,hanging,verytolerant,stretch,normal]%
\setupindenting[yes,small]%
\strut%
\reference[myref3]{MyRef3}Here is the first reference.\par
See reference \in[myref4] on \at{page}[myref4]\par
%
\dorecurse{5}{
\startsection[title={Title for section{\recurselevel}}]
\darkred\input knuth \par
\darkblue\input ward
\stopsection
}

\reference[myref4]{MyRef4} Here is the second reference.\par
See reference \in[myref3] on \at{page}[myref3]\par

\stopshapetext

\definelayer[testB]

\setlayer[testB][x=-1cm,y=3cm]{\framed[background=ol1]{\strut\getshapetext}}
\setlayer[testB][x=9cm,y=3cm] {\framed[background=ol1]{\strut\getshapetext}}
\flushlayer[testB]

\page

\setlayer[testB][x=-1cm,y=3cm]{\framed[background=ol1]{\strut\getshapetext}}
\setlayer[testB][x=9cm,y=3cm] {\framed[background=ol1]{\strut\getshapetext}}
\flushlayer[testB]

%==============================================================================
\stoptext
%==============================================================================
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___________________________________________________________________________________

[NTG-context] Re: compatibility between \startshapetext and \startsection ?

[Wolfgang Schuster]

garulfo@azules.eu schrieb am 14.05.2024 um 23:13:
> Hi all,
> 
> \startshapetext works pretty well, but when I use \startsection \stopsection, shapes are not respected  anymore.
> I use layers, to be able to place the content anywhere, but the issue remains without layers.
> 
> Any clues ?
> (\placeinitial seems also to break the shaping)
> 
> 
> Example : 2 pages without sectioning, and after 2 pages by uncommenting the \startsection and \stopsection commands.
> 
> 
> [...]
> \dorecurse{5}{
> \startsection[title={Title for section{\recurselevel}}]
> \darkred\input knuth \par
> \darkblue\input ward
> \stopsection
> }


The problem aren't the section command but the vertical skips added 
before and after each section, you can reproduce the effect when you add 
\blank to your example.

\dorecurse{5}{
\blank
\leftaligned{Title for section{\recurselevel}}
\blank
\darkred\input knuth \par
\darkblue\input ward
}

Wolfgang
___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
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wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________

[NTG-context] Re: compatibility between \startshapetext and \startsection ?

[Garulfo]

Thanks you Wolfgang.

If it's not possible to use \blank, it appears that using for example 
\strut\par\strut\par is OK (but \par\par is not, )

\dorecurse{5}{
\strut\par\strut\par
\leftaligned{Title for section{\recurselevel}}
\strut\par\strut\par
\darkred\input knuth \par
\darkblue\input ward}

Please, what would be a \setuphead that removes the introduction of 
these "uncompatible" verticals skips ?

I've tried several, but even this one isn't compatible.

\setuphead
   [section]
   [before={},     % also tried \blank[nowhite] and \blank[back]
    inbetween={},
    after={},
    beforesection={},
    aftersection={},
    alternative=text,
    style=\tf]


Le 15/05/2024 à 13:09, Wolfgang Schuster a écrit :
> garulfo@azules.eu schrieb am 14.05.2024 um 23:13:
>> Hi all,
>>
>> \startshapetext works pretty well, but when I use \startsection 
>> \stopsection, shapes are not respected  anymore.
>> I use layers, to be able to place the content anywhere, but the issue 
>> remains without layers.
>>
>> Any clues ?
>> (\placeinitial seems also to break the shaping)
>>
>>
>> Example : 2 pages without sectioning, and after 2 pages by 
>> uncommenting the \startsection and \stopsection commands.
>>
>>
>> [...]
>> \dorecurse{5}{
>> \startsection[title={Title for section{\recurselevel}}]
>> \darkred\input knuth \par
>> \darkblue\input ward
>> \stopsection
>> }
> 
> 
> The problem aren't the section command but the vertical skips added 
> before and after each section, you can reproduce the effect when you add 
> \blank to your example.
> 
> \dorecurse{5}{
> \blank
> \leftaligned{Title for section{\recurselevel}}
> \blank
> \darkred\input knuth \par
> \darkblue\input ward
> }
> 
> Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________