Re: [NTG-context] Inconsistent behaviour of placefigure[left] for math and text

18 Apr 2006


      Aditya Mahajan wrote:
...
On Fri, 14 Apr 2006, Hans Hagen wrote:
...
Hans Hagen wrote:
...
Aditya Mahajan wrote:
...
Hi,
  When I use \placefigure[left] with some test, the text wraps around
the figure. But if the paragraph, contains some formula, it does not
wrap even after the figure is complete. How can I prevent such a
behaviour.
btw, can you make three (or more) examples: (yes|nocheck|text) with 
left/bottom/fallback placement for the testsuits (see other threads)
first of all, take the beta in order to get renumbering right

the next variant let's fallbacks step in earlier

\long\def\dofloat#1#2#3#4%
  {\dosetfloatbox{#1}{#2}{#3}{#4}%
   \dogetfloatbox{#1}\empty}


\def\dodocomplexplacefloat[#1][#2][#3]#4%
  {\flushnotes
   \flushsidefloats % here !
   \ifsomefloatwaiting
     % this was \checkwaitingfloats spread all over
     \doifinsetelse\v!always{#2}
       {\showmessage\m!floatblocks5\empty}
       
{\expanded{\doifcommonelse{#2}{\flushfloatslist}}\doflushfloats\donothing}%
     % but which should be done before using box \floatbox
   \fi
   \ifmargeblokken % waarschijnlijk gebroken ! ! ! !
     \doifinset\v!margin{#2}
       {\endgraf
        \bgroup\everypar{\egroup\the\everypar}%
        \hsize\@@mbwidth}%
   \fi
   \global\insidefloattrue
   \begingroup % **
   \the\everyinsidefloat
   \let\@@extrafloat\empty
   \presetmorefloatvariables{#2}%
   \dowithnextboxcontent % better a \the\everyfloattoks
     {\setlocalfloathsize
      \getvalue{\??fl#1\c!inner}%
      \fuzzysnappingfalse
      \postponenotes} % new
     {%
\doifvaluesomething{\??fl#1\c!criterium}
  {\ifdim\wd\nextbox>\getvalue{\??fl#1\c!criterium}\relax
     \edef\forcedfloatmethod{\executeifdefined{\??fl#1\c!fallback}\v!here}%
  \fi}%
       \xdocompletefloat{#1}{#3}{#1}{#2}{#1}{#4}% ** not yet done
       % we need to carry over the par because of side floats
      \doifnotinset\v!text{#2}{\carryoverpar\endgroup}%
      \global\sidefloatdownshift \zeropoint
      \global\sidefloatextrashift\zeropoint
      \ifparfloat
        \doifinset\v!reset{#2}\forgetsidefloats
        \doinhibitblank
      \fi}% better move this to side floats
     \vbox}
...
I tried playing around with the fallback option, but had unexpected 
results. When I give fallback=left (does that make sense?) I get text 
in the right margin!! See example below.
% first a new key
\unprotect
\startconstants            dutch                     english
                            german                    czech
                            italian                   romanian
                            french
fallback: terugval                  fallback
                            fallback                  fallback
                            fallback                  fallback
                            fallback
\stopconstants
% use that key
\long\def\dofloat#1#2#3#4%
   {\dosetfloatbox{#1}{#2}{#3}{#4}%
    \doifelsevaluenothing{\??fl#4\c!criterium}
      {\dogetfloatbox{#1}\empty}
      {\ifdim\wd\floatbox>\getvalue{\??fl#4\c!criterium}\relax
         \postcenterfloatbox{\wd\floatbox}% else we get left aligned
         %dogetfloatbox{#1}\v!here        % see details/pascal
\dogetfloatbox{#1}{\executeifdefined{\??fl#4\c!fallback}\v!here}% 
PATCHED
       \else
         \dogetfloatbox{#1}\empty
       \fi}}
% pass the new location (will be done differently, hack
\def\dogetfloatbox#1#2%
   {\ifvisible
      \doifelsenothing{#2}
        {\getfromcommalist[#1][1]%
         \@EA\beforesplitstring\commalistelement\at:\to\floatmethod
         \@EA\aftersplitstring \commalistelement\at:\to\floatcolumn
         \@EA\aftersplitstring \floatcolumn\at*\to\floatrow
         \@EA\beforesplitstring\floatcolumn\at*\to\floatcolumn
         % todo: nog algemeen otr
         \ifx\OTRSETsetpreferedcolumnslot\undefined\else
           \OTRSETsetpreferedcolumnslot\floatcolumn\floatrow
         \fi}
        {\let\floatcolumn\empty
         \let\floatrow\empty
         \edef\floatmethod{#2}}%
      \doifundefined{\string\floatmethod\floatmethod}
        {\let\floatmethod\v!here}%
      \getvalue{\string\floatmethod\floatmethod}[\floatmethod,#1]% 
PATCHED
    \fi}
\def\redofloatorder#1%
    {\doifnotinset\@@bknumbering{\v!nocheck,\v!text}
       {\doglobal\increment\nofplacedfloats\relax
        \gettwopassdata\s!float
        \iftwopassdatafound
          \doifnot\composedsectionnumber\twopassdata
            {\edef\oldcomposedsectionnumber{\composedsectionnumber}%
             \xdef\composedsectionnumber{\twopassdata}%
             \showmessage\m!floatblocks1{\nofplacedfloats,#1
  \oldcomposedsectionnumber,\composedsectionnumber}}%
        \fi}}
\protect
\setupfloats[numbering=text]
% we use the marginwidth as criterium
\setupfloat[figure][criterium=\marginwidth,fallback=left]
\starttext
\placefigure[bottom]{1}{\framed[width=.9\marginwidth]{}} \input tufte
  \placefigure[bottom]{2}{} \input tufte
  \placefigure[left]{3}{} \input tufte
  \placefigure[left]{4}{\framed[width=.9\marginwidth]{}} \input tufte
\stoptext
Aditya
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