Columnsets problems

Columnsets problems

[Gilles Pérez-Lambert]

Hello,

Following Hans's presentation on ConTeXt in EuroTeX 2005, I started to use columnsets. I'm really really impressed. Columnsets are easy to set up and wonderfully powerful.

Nevertheless, I have some problems with columnsets... On the page:

	http://typo.free.fr/context/

you'll find the source file (Bogues.tex) and the output (Bogues.pdf)
or a zip file of them.

Some info on my config:

               texexec : TeXExec 5.2.5 - ConTeXt / PRAGMA ADE 1997-2005
               texutil : TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004
                   tex : pdfeTeX, 3.141592-1.21a-2.2 (Web2C 7.5.4)
               context : ver: 2005.03.16
               cont-en : ver: 2005.03.16  fmt: 2005.3.19  mes: english
               cont-nl : ver: 2005.01.31  fmt: 2005.3.19  mes: dutch

Pages
on the
Bogues.pdf  Description
----------  --------------------------------
1           When a title (here: \Article{Le titre})
            is inside a columnsetspan, header=empty
            doesn't work.
6           The right column continues in the footer.
10          Same problem.
17          a line from the left column is reported on
            the right column even if there is room for
            it on the left column.



By the way, always in a columnsets context, is there a way to completely forbid floats on certain pages?

I didn't find a way to tell placefigure not to allow figures to be renumbered during the placement. In other words, is there a possibility the follow the order in which I declare the figure, even if a page is less optimal like this...


Thanks for your time!

Gilles.

Re: Columnsets problems

[Hans Hagen]

Gilles Pérez-Lambert wrote:
> Hello,
> 
> Following Hans's presentation on ConTeXt in EuroTeX 2005, I started to use columnsets. I'm really really impressed. Columnsets are easy to set up and wonderfully powerful.
> 
> Nevertheless, I have some problems with columnsets... On the page:
> 
> 	http://typo.free.fr/context/
> 
> you'll find the source file (Bogues.tex) and the output (Bogues.pdf)
> or a zip file of them.
> 
> Some info on my config:
> 
>                texexec : TeXExec 5.2.5 - ConTeXt / PRAGMA ADE 1997-2005
>                texutil : TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004
>                    tex : pdfeTeX, 3.141592-1.21a-2.2 (Web2C 7.5.4)
>                context : ver: 2005.03.16
>                cont-en : ver: 2005.03.16  fmt: 2005.3.19  mes: english
>                cont-nl : ver: 2005.01.31  fmt: 2005.3.19  mes: dutch
> 
> Pages
> on the
> Bogues.pdf  Description
> ----------  --------------------------------
> 1           When a title (here: \Article{Le titre})
>             is inside a columnsetspan, header=empty
>             doesn't work.

you probably means 'high'

well, that's kind of tricky and i need to look into that carefully

below is another way of doing it (OTRSET patch)

> 6           The right column continues in the footer.
> 10          Same problem.
> 17          a line from the left column is reported on
>             the right column even if there is room for
>             it on the left column.

dunno, have to look into it (quite tricky to sync things in column sets; 
stretching tex to the limit)

> By the way, always in a columnsets context, is there a way to completely forbid floats on certain pages?

no, should be doabla (so remind me later)

> I didn't find a way to tell placefigure not to allow figures to be renumbered during the placement. In other words, is there a possibility the follow the order in which I declare the figure, even if a page is less optimal like this...

see patch below

\unprotect

% % % %

\setupfloats
   [\c!numbering=\v!yes]

\def\dofloatreference
   {\doifnot\@@bknumbering\v!nocheck
      {\doglobal\increment\numberedfloat
       \expanded{\writeutilitycommand
         {\noexpand\twopassentry
         {\s!float}%
         {\numberedfloat}%
         {\hetnummer}}}}}

\def\redofloatorder#1%
   {\doifnot\@@bknumbering\v!nocheck
      {\doglobal\increment\nofplacedfloats\relax
       \gettwopassdata\s!float
       \iftwopassdatafound
         \doifnot\hetnummer\twopassdata
           {\edef\oldhetnummer{\hetnummer}%
            \xdef\hetnummer{\twopassdata}%
            \showmessage\m!floatblocks1{\nofplacedfloats,#1 
\oldhetnummer,\hetnummer}}%
       \fi}}

% % % %

\def\OTRSETskipstart
   {\scratchcounter\executeifdefined{\??mc\OTRSETidentifier\c!start}\zerocount
    \ifcase\scratchcounter\else
      \advance\scratchcounter\plusone
      \doOTRSETsetgridcells
        {\copy\placeholderboxe}
        \plusone\plusone\nofcolumns\scratchcounter
        \null}%
    \fi}

\def\OTRSETsetvsize % snap per sectie (gap here?)
   {\ifcollectingcontent \else % can be assigndimen
\OTRSETskipstart
      \OTRSETcheckinsert % added
      \OTRSETsetfreecells\mofcolumns\columnfirstcell
      \ifsomefreecolumncells
        \global\vsize\columnfreecells\lineheight
        \ifinotr % else problems with floats, see extreme
          \global\pagegoal\vsize % niet nodig, tenzij binnen otr
        \fi
        \synchronizeoutput % fails on example
       % \allowbreak % hm
      \fi
      \synchronizenotes
    \fi}

\def\OTRSETdoflushfloats
   {\bgroup
    \def\OTRSETsavebox##1{\!!doneafalse}%
    \doloop
      {\ifsomefloatwaiting
\OTRSETskipstart
         \dogetfloat
         \ifdim\wd\floatbox>\zeropoint
           \!!doneatrue
           \dp\floatbox\zeropoint
           \OTRSETstoreincolumnslot{TBLR}\floatbox
           \if!!donea
            %\message{[flu]}%
           \else
             \OTRSETresavebox\floatbox
             \exitloop
           \fi
         \else
          %\message{[err]}% happens but why?
         \fi
       \else
         \exitloop
       \fi}
    \egroup}

\protect


\setuplayout
   [grid=yes,
    header=0pt,
    height=middle,
    width=middle]

\showgrid

\setupfloats[numbering=nocheck]

\definecolumnset [first] [n=2,start=0]
\definecolumnset [next]  [n=2,start=3]

\setuptexttexts[\vbox to \textheight{\topskipcorrection \hsize\makeupwidth left 
\hfill right\vfill}]

\setuphead[chapter][text=empty]

\starttext

\startcolumnset[first,next]
   \placefigure[btrl]{}{}
   \placefigure[tblr]{}{}
   \chapter{thuan} \dorecurse{25}{\recurselevel: \input thuan \endgraf}
\stopcolumnset

\startcolumnset[first,next]
   \chapter{thuan} \dorecurse{25}{\recurselevel: \input thuan \endgraf}
\stopcolumnset

\startcolumnset[first,next]
   \chapter{thuan} \dorecurse{25}{\input thuan \endgraf\placefigure{}{}}
\stopcolumnset

\stoptext


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               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------

Re: Columnsets problems

[Gilles Pérez-Lambert]

Hello,

Hans Hagen a écrit le mercredi 23 mars 2005 19:33 :
> Gilles Pérez-Lambert wrote:
> below is another way of doing it (OTRSET patch)

Thanks.

>> 6           The right column continues in the footer.
>> 10          Same problem.
>> 17          a line from the left column is reported on
>>             the right column even if there is room for
>>             it on the left column.
> 
> dunno, have to look into it (quite tricky to sync things in column 
> sets; stretching tex to the limit)

I know. I didn't even think it was possible at all with TeX. It's a minor problem: I'll do manual edits.

>> By the way, always in a columnsets context, is there a way to 
>> completely forbid floats on certain pages?
> 
> no, should be doabla (so remind me later)

I will. :-)

>> I didn't find a way to tell placefigure not to allow figures to be 
>> renumbered during the placement. In other words, is there a 
>> possibility the follow the order in which I declare the figure, even 
>> if a page is less optimal like this...
> 
> see patch below

Thanks!

Just a thing: I had to delete the '%' in the '\null}%' line below to make it compile.

> \def\OTRSETskipstart
> {\scratchcounter\executeifdefined{\??mc\OTRSETidentifier\c!start}\zerocount
>    \ifcase\scratchcounter\else
>      \advance\scratchcounter\plusone
>      \doOTRSETsetgridcells
>        {\copy\placeholderboxe}
>        \plusone\plusone\nofcolumns\scratchcounter
>        \null}%
>    \fi}

Thanks again,

Gilles.