Re: [dev-context] Caption in floatcombination is too low

6 Feb 2019

      Hi,

here is a ugly fix for pack-com.mkiv to reduce the distance between the 
float content and caption.

\unexpanded\def\pack_combinations_float_hack_b#1%
- {\box\b_strc_floats_separate_caption}
+ 
{\hpack{\raise\dimexpr\strutht-1pt\relax\box\b_strc_floats_separate_caption}}

Wolfgang

Wolfgang Schuster schrieb am 26.01.19 um 20:15:
...
Hi Hans,
there is a big gap between the content and the caption of each float 
in a floatcombination environment.
%%%% begin example
\useMPlibrary[dum]
\starttext
\startplacefigure[title={First graphic}]
  \externalfigure[one]
\stopplacefigure
\startfloatcombination
  \startplacefigure[title={Second graphic}]
    \externalfigure[two]
  \stopplacefigure
\stopfloatcombination
\stoptext
%%%% end example
This is probably a result of the following two command from 
strc-flt.mkvi where you put the caption in a \vbox with a height of 
1pt and flush it afterwards in \vtop which shifts the content down to 
the baseline. As a result of this a empty space was added at the top 
of the caption.
A simple fix for this is to raise the box with the caption when it is 
added to the combination.
%%%% begin strc-flt.mkvi
\def\strc_floats_build_box_separate_make
  {\offinterlineskip
   \vpack to \onepoint{\box\b_strc_floats_content}\break
   \vpack to \onepoint{\box\b_strc_floats_caption}}
\def\strc_floats_build_box_separate_split#1%
  {\setbox\scratchbox\vbox{%
     \setbox\scratchbox\vpack{#1}%
     \unvbox\scratchbox\relax
     \setbox\scratchbox\lastbox
    %\doloop{%
        \unvbox\scratchbox
        \setbox\scratchbox\lastbox
    %   \ifdim\ht\scratchbox=2\onepoint
          \unvbox\scratchbox
          \setbox\scratchbox\lastbox
    %     \exitloop
    %   \fi}%
     \splittopskip\zeropoint
     \global\setbox\b_strc_floats_separate_content\vsplit\scratchbox 
to \onepoint
     \global\setbox\b_strc_floats_separate_caption\vsplit\scratchbox 
to \onepoint
\global\setbox\b_strc_floats_separate_content\vpack{\unvbox\b_strc_floats_separate_content\setbox0\lastbox\unvbox0}%
\global\setbox\b_strc_floats_separate_caption\tpack{\unvbox\b_strc_floats_separate_caption\setbox0\lastbox\unvbox0}%
   }}
%%%% end strc-flt.mkvi
Wolfgang