textbackground and margin

textbackground and margin

[Aditya Mahajan]

Hi Hans,

  textbackground does not honour topoffset/bottomoffset at pagebreak. 
Is this by design?

\definetextbackground
   [test]
   [      location=paragraph,
     rulethickness=1pt,
        leftoffset=1em,
         topoffset=5cm,
      bottomoffset=5cm] % For test purposes
\starttext

\starttextbackground[test]
\dorecurse{15}{\input knuth \endgraf}
\stoptextbackground

\stoptext

Is there some parameter to adjust the offset before and after a 
pagebreak. (I want them to be same as bottomoffset and topoffset.)
Or should I take care of this in mpos:par:columnset with something 
like (pseudo code)

if nofmultipars > 1
  draw multipars[1] enlarge bottom by bottomoffset;
  for i = 2 upto nofmultipars:
   draw multipars[i]
     enlarge top by topoffset enlarge bottom by bottomoffset;
  endfor;
endif;


Or is there some easier way to just I influence boxfilloffset for 
do_draw_par in core-mp.tex?


Thanks,
Aditya

-- 
Aditya Mahajan, EECS Systems, University of Michigan
http://www.eecs.umich.edu/~adityam || Ph: 7342624008

Re: textbackground and margin

[Hans Hagen]

Aditya Mahajan wrote:
> Hi Hans,
>
>   textbackground does not honour topoffset/bottomoffset at pagebreak. 
> Is this by design?
>   
ss everywhere in tex, skipe at the bottom and top of a page disappear at a pagebreak, and inserting it is tricky 

Hans 

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Re: textbackground and margin

[Aditya Mahajan]

On Fri, 19 May 2006, Hans Hagen wrote:

> Aditya Mahajan wrote:
>> Hi Hans,
>>
>>   textbackground does not honour topoffset/bottomoffset at pagebreak.
>> Is this by design?
>>
> ss everywhere in tex, skipe at the bottom and top of a page disappear at a pagebreak, and inserting it is tricky

Any appararent drawback of using the following approach...

\definetextbackground
   [test]
   [ location=paragraph,
     leftoffset=1em,
     before={\blank[1cm]},
     after={\blank[1cm]}]

\startuseMPgraphic{mpos:par:columnset}
   path p;
   for i = 1 upto nofmultipars  :
     p := multipars[1]  topenlarged 1cm bottomenlarged 1cm;
     fill p withcolor 0.9white ;
     draw p withcolor \MPvar{linecolor}
     withpen pencircle scaled \MPvar{linewidth};
   endfor;
\stopuseMPgraphic

\starttext

\input knuth \endgraf
\hairline \par
\starttextbackground[test]
\dorecurse{13}{\input knuth \endgraf}
\stoptextbackground
\hairline \par
\input knuth \endgraf

\stoptext

Aditya

-- 
Aditya Mahajan, EECS Systems, University of Michigan
http://www.eecs.umich.edu/~adityam || Ph: 7342624008