Hi Wolfgang,
Thank you for the code and still as clear explanations.
Fabrice
2016-07-09 12:45 GMT+02:00 Wolfgang Schuster <schuster.wolfg...@gmail.com>:
> Fabrice Couvreur <fabrice1.couvr...@gmail.com>
> 9. Juli 2016 um 12:17
> Hi Wolfgang,
>
> In the first example, so I do not need the command \currentheadnumber
> but just do :
>
> \setuphead
> [chapter]
> [command=\HeadTitle,
> headstyle=\ss,
> numbercommand=\Headed]
>
> ConTeXt passes the section number to the argument of the \Headed command.
>
> But in this second example, using the command
> \determineheadnumber[chapter], the chapter number is always 0
>
> You need \determineheadnumber[...] each time when the value for
> \currentheadnumber should change.
>
> \setuppagenumbering[location=footer]
>
> \startusableMPgraphic{NumberHead}
> picture r ;
> r := image ( graphictext
> \MPstring{chapter}
> scaled 4pt
> withfillcolor \MPcolor{lightgray}
> withpen pencircle scaled 1pt ; ) ;
> draw r ;
> \stopusableMPgraphic
>
> \defineoverlay[NumberHead][\uniqueMPgraphic{NumberHead}]
>
> \def\processMPheadnumber#1%
> {\setMPtext{chapter}{\bf#1}
> \useMPgraphic{NumberHead}}
>
> \setuphead
> [chapter]
> [command=\HeadTitle,
> headstyle=\ss,
> numbercommand=\processMPheadnumber{\currentheadnumber}]
>
> The following works here.
>
> \startusableMPgraphic{NumberHead}
> picture r ;
> r := image ( graphictext
> "\bf\namedheadnumber{chapter}"
> scaled 4pt
> withfillcolor \MPcolor{lightgray}
> withpen pencircle scaled 1pt ; ) ;
> draw r ;
> \stopusableMPgraphic
>
> \def\processMPheadnumber#1%
> {\useMPgraphic{NumberHead}}
>
> \setuphead
> [chapter]
> [command=\HeadTitle,
> headstyle=\ss,
> numbercommand=\processMPheadnumber]
>
> Wolfgang
>
>
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