Re: [NTG-context] Setting `before` option of chapter breaks header text

3 Sep 2013

      On 03.09.2013, at 17:54, Wolfgang Schuster  wrote:
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Am 03.09.2013 um 16:32 schrieb Michael Scholtz :
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On 03.09.2013, at 16:13, Wolfgang Schuster  wrote:
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Am 03.09.2013 um 16:02 schrieb Michael Scholtz :
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If chapter titles are styled using the `before` option, the header texts on each first page of the documents (body|back|appendix)part are incorrect, because chapter name and number are empty. 
(Tested with ConTeXt version 2013.05.28 00:36 and 2013.09.03 10:22)
Is this a bug? (If not, is there any other way to set `before` without breaking the headers?)
It’s the wrong method to add rules at the begin/end of a heading.
A better way to add rules is to put a frame around the text.
\defineframedtext
[ChapterFrame]
[frame=off,
width=\textwidth,
topframe=on,
bottomframe=on,
offset=0pt,
toffset=1ex,
boffset=1ex]
\setuphead
[chapter]
[before=\startChapterFrame,
after=\stopChapterFrame]
Wolfgang
Thanks, I got this from the wiki page: http://wiki.contextgarden.net/Titles#Your_Own_Titling_Levels
...but it seems to be wrong there.
It’s a solution which works but also with side effects because allow TeX to break
the page between the rule and the heading which isn’t the case with framedtext
where the whole block is unbreakable.
...
I used `before` (probably in the wrong way ;-) ) to add more space above each chapter title. 
How to do this without `before`?
Controlling the space before and after the heading is the default way in which the before/after
keys are used. There has been a few suggestions to add a spacebefore key to \setuphead which
will replace "before=\blank" for this but this hasn’t happened so far.
In the example above you can now set the spaces before and after the heading in the framedtext
setup with "before={\blank[2cm]}" and "after=\blank".
Wolfgang
Thanks for the hints. 
I tried `\blank` commands in `before`, but it seems to have to effect. A space before `\blank` (like `before={\ \blank[5em]}`) makes it work, but is not so nice.

But using `toffset` and `boffset` does the job, even without `\blank`s:

    \defineframedtext[ChapterFrame][
        frame=off,
        width=\textwidth,
        offset=0pt,
        toffset=5em,
        boffset=2em,
    ]

    \setuphead[chapter][
        before=\startChapterFrame,
        after=\stopChapterFrame,
    ]

Regards,
Michael