Some questions about an environment (Metafun)

[Fabrice Couvreur <fabrice1.couvreur@gmail.com>]

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 Hi,
How to have Definition 1, Definition 2, Definition 3 ... ?

Is it possible to translate the image p until the left edge of the text area
?

Thank you,
Fabrice

\showframe

\setupcolors[state=start,cmyk=yes]

\definecolor[MyColor][c=0.00, m=0.10, y=0.20, k=0.00]
\definecolor[myColor][c=0.00, m=0.62, y=1.00, k=0.00]

\setupbodyfont[11pt]
\defineoverlay[MyFrame][\useMPgraphic{MyFrame}]

\defineframedtext
   [MyText]
   [frame=off,
    background=MyFrame,
    width=0.9\textwidth,
    location=right]

\defineoverlay[MyFrame][\useMPgraphic{MyFrame}]

\def\StartFrame{\startMyText}
\def\StopFrame{\startMyText}

\setMPtext{MyFrame}{\hbox spread 1em {\hss\strut
{\bf\feature[+][f:smallcaps]  Définition 1 }\hss}}}

\startuseMPgraphic{MyFrame}

path a ;
path b ;
picture p ;
o := BodyFontSize ;
p :=textext.rt(\MPstring{MyFrame}) ;
p := p shifted (0,OverlayHeight-ypart center p) ;
a := unitsquare xyscaled(OverlayWidth,OverlayHeight) ;
fill a withcolor \MPcolor{MyColor} ;
b := boundingbox p ;
fill b withcolor \MPcolor{myColor} ;
draw p withcolor white ;

\stopuseMPgraphic

\starttext
\startlinecorrection[blank]
\startMyText
\input knuth
\stopMyText
\stoplinecorrection

\startlinecorrection[blank]
\startMyText
\input knuth
\stopMyText
\stoplinecorrection

\stoptext

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