Tuesday, March 25, 2003 Hans Hagen wrote:
>>The problem is still that I cannot separate the behaviour at the
>>end of the background from the behaviour at a split. What I'm
>>looking for is something like this:
HH> guess what, this time your demands for features are fulfilled on forehand!
HH> there is an array available
HH> multilocs[...]
HH> 1 = top
HH> 2 = mid
HH> 3 = bottom
HH> shape; this is how i could handle the example in details with different
HH> shades per kind of frame
Almost perfect! Only a few things need refining:
(1) "top" is also used when there is no split; it should be
possible to detect the "no-split" situation (multilocs=0?)
(2) I still need a to find a way to make only certain corners
rounded, but I guess that's just a matter of MetaPosting a little.
Up to now, I came up with the following:
\starttext
\setupcolors[state=start]
\definetextbackground[gb][state=start]
\startuseMPgraphic{mpos:par:columnset}
path p, q;
for i := 1 upto nofmultipars :
p := counterclockwise simplified multipars[i] leftenlarged 5pt rightenlarged 5pt ;
if multilocs[i] = 1 :
q := p topenlarged 5pt ;
fill q withcolor green ;
draw topboundary q withcolor red ;
draw leftboundary q withcolor red ;
draw rightboundary q withcolor red ;
elseif multilocs[i] = 2 :
q := p ;
fill q withcolor green ;
draw leftboundary q withcolor red ;
draw rightboundary q withcolor red ;
else:
q := p bottomenlarged 5pt;
fill q withcolor green ;
draw bottomboundary q withcolor red ;
draw leftboundary q withcolor red ;
draw rightboundary q withcolor red ;
fi
endfor ;
\stopuseMPgraphic
\starttextbackground[gb]
\input tufte
\stoptextbackground
\blank[2*big]
\starttextbackground[gb]
\dorecurse{10}{\input tufte \par}
\stoptextbackground
\blank \input tufte
\stoptext
As you can see, the first background doesn't split and behaves
like multilocs=1, while one would wish it to behave differently.
--
Giuseppe "Oblomov" Bilotta
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