Hi Hans,
There have been a few questions on TeX.SX asking essentially for a frame
around a float that covers both the caption and the content.
1.
https://tex.stackexchange.com/questions/25180/adding-a-frame-and-background-color-to-floats-in-context/37128#37128
2.
https://tex.stackexchange.com/questions/457412/context-place-rules-above-and-below-floating-figure
I have provided a hacky solutions to both questions (the internals changed
quite a bit between the two questions), but as I was playing around with
the code, I thought that the simplest solution will be to add a `before`
and an `after` key to `\setupcaptions`:
\def\strc_floats_build_box
{\global\setbox\floatbox\vbox % pack ? probably not
{\strc_floats_set_local_hsize
\forgetall
\ifconditional\c_floats_store_minimal_package
\strc_floats_build_box_separate_make
\else
% \let\floatcaptionarrangement\s!default
\let\floatcaptionarrangement\v!bottom % for Alan
\processcommacommand[\floatcaptionparameter\c!location]\strc_floats_build_box_step
\floatcaptionparameter\c!before %AM: Added
\ifcsname\??floatbuilder\floatcaptionarrangement\endcsname
\lastnamedcs
\else
\strc_floats_build_box_default
\fi
\floatcaptionparameter\c!after %AM: Added
\fi}}
A simple usage example is the following:
\setupexternalfigures[location={local,global,default}]
\setupcaption
[
before={\startframedtext[widht=fit, background=color,
backgroundcolor=gray, frame=off]},
after=\stopframedtext,
]
\starttext
\section{A figure with rules}
\startplacefigure[location={left,high},title={A dutch cow}]
\externalfigure[cow]
\stopplacefigure
\input knuth
\startplacefigure[title={\input zapf \relax}]
\externalfigure[cow]
\stopplacefigure
\dorecurse{4}{\input knuth \endgraf}
\stoptext
Does it make sense to add this or something similar?
Thanks,
Aditya
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