[NTG-context] Left frame on a block of text

Gilles Waeber lists at gilleswaeber.ch
Sat Apr 20 20:53:59 CEST 2019


Thanks, that's exactly what I needed.
I got inspired by your post at https://adityam.github.io/context-blog/post/frame-with-solid-left-line/ for my original code.

I just added linecap:=butt; at the beginning of the metapost code to get squared ends.

Gilles

> Framed does not provide enough hooks to control the spaces. For something
> like this, you can also use metapost to draw the background:
> 
> \showframe
> \showboxes
> \defineframedtext[leftbartext][
>          width=broad,
>          frame=off,
>          rulethickness=.5ex,
>          background=mp:offsetframe,
>          offset=overlay,
> ]
> 
> \defineoverlay[mp:offsetframe][\useMPgraphic{mp:offsetframe}]
> 
\startuseMPgraphic{mp:offsetframe}
linecap:=butt;
   draw leftboundary OverlayBox
         xshifted -(LeftMarginDistance + 0.5OverlayLineWidth)
         withpen pencircle scaled OverlayLineWidth;
   setbounds currentpicture to OverlayBox; \stopuseMPgraphic
> 
> \starttext
> \startleftbartext
> \input knuth
> \stopleftbartext
> \stoptext
> 
> 
> Aditya




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