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%D \module
%D [ file=meta-nav,
%D version=2003.03.28,
%D title=\METAPOST\ Graphics,
%D subtitle=Navigational Graphics,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\startuniqueMPgraphic{navplus}{size,color,type,mode}
color c ; numeric s, t ; path p ;
t := \MPvar{type} ; c := \MPvar{color} ; s := \MPvar{size} ;
if \MPvar{mode} = 1 : c := .5[c,white] fi ;
if t = 1 :
p := ((0,0)--(1/2,0)--(1,1/3)--(1,1)--(0,1)--(0,0)--cycle)
xyscaled (3,4) ;
elseif t = 2 :
p := ((0,0)--(1,0)--(1,1)--(0,1)--(1/2,2/5)--(1,1)--(0,1)--cycle)
xyscaled (4,3) ;
else :
p := fullsquare xyscaled (3,3) ;
fi ;
draw p withpen pencircle scaled (1/2) withcolor .75white ;
fill p withcolor c ;
draw p withpen pencircle scaled (1/3) withcolor .5c ;
currentpicture := currentpicture scaled s ;
currentpicture := currentpicture shifted -center currentpicture ;
\stopuniqueMPgraphic
\setupMPvariables
[navplus]
[size=1ex,
color=black,
type=1,
mode=0]
\definepalet
[navplus]
[attach=darkred,
comment=darkblue]
\definesymbol
[comment-normal]
[\uniqueMPgraphic{navplus}{type=1,color=navplus:comment}]
\definesymbol
[comment-down]
[\uniqueMPgraphic{navplus}{type=1,color=navplus:comment,mode=1}]
\definesymbol
[attach-normal]
[\uniqueMPgraphic{navplus}{type=2,color=navplus:attach}]
\definesymbol
[attach-down]
[\uniqueMPgraphic{navplus}{type=2,color=navplus:attach,mode=1}]
\unprotect
\setupcomment [\c!symbol={comment-normal,comment-down}]
\setupattachments[\c!symbol={attach-normal,attach-down}]
\protect \endinput
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