From: Marcin Borkowski <mbork@atos.wmid.amu.edu.pl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: How to avoid a page break?
Date: Tue, 4 Nov 2008 23:42:21 +0100 [thread overview]
Message-ID: <20081104224221.GJ2264@atos.labs.wmid.amu.edu.pl> (raw)
In-Reply-To: <6011F4E6-7CCD-48B1-BC6B-8084B8BAAD29@gmail.com>
Dnia Tue, Nov 04, 2008 at 11:25:17PM +0100, Wolfgang Schuster napisał(a):
>
> Am 04.11.2008 um 22:39 schrieb Marcin Borkowski:
>
> > Dnia Tue, Nov 04, 2008 at 10:17:51PM +0100, Wolfgang Schuster
> > napisał(a):
> >>
> >> Am 04.11.2008 um 21:21 schrieb Marcin Borkowski:
> >>
> >>> Hi,
> >>>
> >>> I have the following in my code:
> >>>
> >>> \def\doPutTitle#1{%
> >>> \startalignment[middle]
> >>> \bfb
> >>> \page[bigpreference]
> >>> \blank[2*big]
> >>> #1%
> >>> \page[no]%
> >>> \blank[big]%
> >>> \page[no]%
> >>> \stopalignment
> >>> \page[no]%
> >>> }%
> >>>
> >>> Why is it still possible that I have a page break after, say,
> >>> \doPutTitle{some title} (in MkII, in MkIV page breaks fall in
> >>> different
> >>> places). Which percentage signs and \page[no]'s are unnecessary
> >>> here?
> >>
> >> \def\doPutTitle#1%
> >> {\page[bigpreference]
> >> \vbox\bgroup
> >> \raggedcenter
> >> #1%
> >> \egroup
> >> \nobreak\blank[big]}
> >
> > OK, though this looks rather low-level. I was thinking about
> > something
> > more user-friendly;).
> >
> > This raises a philosophical question: is it the "ConTeXt way" to use
> > low-level constructs in environments and high-level in documents?
> > Or is
> > it better to avoid low level whenever possible? Also, your code mixes
> > low-level commands (\vbox, which is a TeX prmitive, \raggedcenter,
> > which
> > is a ConTeXt low-level command, I guess) and high-level ones (\blank).
> > I understand that this ensures a uniform vertical spacing (\blank[big]
> > is obviously better than \vskip 10pt;)), but I thought that it is
> > against ConTeXt philosophy to use low-level stuff unless something
> > really non-standard is needed.
>
> Here is a better method, there is nothing wrong with low level but
> you should know what you do.
Yes, that's obvious. But high-level is better in one thing: when I want
to teach ConTeXt to non-TeX-maniacs;), it's the only possibility.
>
> \defineblankmethod [nobreak] {\nobreak}
>
> \def\doPutTitle#1%
> {\framed[frame=offwidth=\textwidth,align=middle]{#1}%
> \blank[nobreak,line]}
OK, that's very nice, apart from the thing that the only two ways of
learning it are: (1) studying sources or (2) asking here. Also, the
trick with \framed[frame=off,...] is neat, but I still don't get it: why
my \startalignment[middle] didn't work? And how does exactly
\blank[something] work?
Don't think I need these answers *now*. But it would be nice to
understand ConTeXt a bit some day...
You know, with plain TeX it's relatively easy to understand
*everything* - it's so small and, well, primitive;). With LaTeX things
get messy, but still I can read the sources - they are very "plainy", I
mean LaTeX does not have so much UI for developers/package/class
writers, so it's not *that* difficult to understand parts of source
code. But ConTeXt baffles me a lot. I guess that reading sources is
the only remedy - but I don't have enough time now... But some day, I
*will* understand this;).
>
> Wolfgang
>
PS. Wolfgang, can I still subscribe to your fan club? Do I get a free
t-shirt;)?
Greets
--
Marcin Borkowski (http://mbork.pl)
People can be divided into two groups: those who can be divided into
two groups and those who can't.
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next prev parent reply other threads:[~2008-11-04 22:42 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-04 20:21 Marcin Borkowski
2008-11-04 21:17 ` Wolfgang Schuster
2008-11-04 21:39 ` Marcin Borkowski
2008-11-04 22:25 ` Wolfgang Schuster
2008-11-04 22:42 ` Marcin Borkowski [this message]
2008-11-04 22:49 ` Wolfgang Schuster
2008-11-05 7:39 ` luigi scarso
2008-11-05 9:57 ` Marcin Borkowski
2008-11-05 10:13 ` Wolfgang Schuster
2008-11-05 10:22 ` Marcin Borkowski
2008-11-05 10:05 ` Marcin Borkowski
2008-11-05 10:14 ` Wolfgang Schuster
2008-11-05 10:50 ` Marcin Borkowski
2008-11-05 11:12 ` Wolfgang Schuster
2008-11-05 12:13 ` Marcin Borkowski
2008-11-05 12:25 ` Wolfgang Schuster
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