presentation with list of topics and subjects

presentation with list of topics and subjects

[Johannes Hüsing]

Dear fellow ConTeXtuals,

I have copied most of the definitions in the s-pre-01 module to a local
file to toy around with it. What I am trying to achieve is to get a list
of Topics as well a list of Subjects within the local topic on the right
margin. 

First I tried to have a \placelist[subject][alternative=none,criterium=local,
command=\SubjectLine] where \SubjectLine was defined along similar lines as
\TopicLine. This generates a list of subjects, but only on the page where
a new topic starts.

Now I switched to

\def\NewSubjectList%
  {\setbox\SubjectList\vbox{%
        \placelist
          [Subject]
          [alternative=none,
            criterium=local,
            command=\SubjectLine]
            }}

put \NewSubjectList in the after description of \setuphead[Topic],

and rewrote the entry of above to \hbox{\copy\SubjectList}. This works
for now, yet as the list is now stored in a box register, it is treated
as a (black, for that matter) box, so I cannot modify the color of a 
Subject line that belongs to the active subject (for instance).

Is there anything in that direction already provided and more elegant than
this low-level TeX wading?

Other question:

How does the \presentationstep thing work? The following generates a
single pdf page with no elementwise progressing:

\usemodule[pre-general]
\autopresentationsteptrue
\language[de]
\setupoutput[pdftex]
\starttext
\startitemize
\item Bis er
 \presentationstep
\item St"uck 
 \presentationstep
\item f"ur St"uck
 \presentationstep
\item ihren Blicken entschwand.
\stoptext

at least on my machine (I compiled the latest stable ConTeXt version at
Easter).

Thanks

Johannes

Tht 
i  tÖ b

Re: presentation with list of topics and subjects

[Hans Hagen]

At 11:35 AM 6/2/2000 +0200, Johannes Hüsing wrote:

>I have copied most of the definitions in the s-pre-01 module to a local
>file to toy around with it. What I am trying to achieve is to get a list
>of Topics as well a list of Subjects within the local topic on the right
>margin. 

lists are always local to the level, unless the 'criterium' is set to
'previous' ; in your case, saving the list in a box is a good solution 

what you want is a level n list with level n+1 expanded for the current n;
it can be done with tricky macros [assigning something to command] but I
will look into a possibility to implement it as option.  

>Now I switched to
>
>\def\NewSubjectList%
>  {\setbox\SubjectList\vbox{%

You're in vmode, so no % needed after { ; Also not needed after \macronames
and so. More readable -) 

Hans

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