Re: Kerning

["Bart C. Wise" <bntgcontext@wiseguysweb.com>]

On Thursday 13 November 2008 12:46:27 am Hans Hagen wrote:
> Bart C. Wise wrote:
> > Wolfgang,  thanks so much for your help so far.
> >
> > I was able to take the code and make it work correctly to stretch the
> > chapter title.  What I want is two lines for a chapter head.  For
> > example, Line 1: "Chapter One"
> > Line 2: "Title for Chap 1"
> >
> > I want line 1 to be stretched.  Everything I have tried does not work.  I
> > can get the "Chapter" word to stretch, but not the whole line (and it
> > should probably be treated as a whole line when stretching).  I was never
> > able to get the chapter number (now a word) to stretch.
> >
> > So how do I grab the output for line 1 and then stretch it?
> >
> > Here's a sample of what I have without any stretching:
> >
> > \def\Myheader#1#2{%
> >     \framedtext[width=0.60\textwidth, frame=off, align=middle]{%
> >         \vbox{\headtext{chapter}~#1 \blank #2}}}
> >
> > \def\englishnumbers#1{
> >     \ifcase#1 \or ONE\or TWO\or THREE\or FOUR\or FIVE\fi}
> > \defineconversion[englishnumbers][\englishnumbers]
> >
> > \setupsection[chapter][conversion=englishnumbers]
> > \setuphead [chapter][
> >     command=\Myheader,
> >     textcommand=\bfd,
> > ]
> > \setupheadtext[chapter=CHAPTER] % used by \headtext
> > \starttext
> > \chapter{Title for Chap 1}
> > \processfile{tufte}
> > \stoptext
> >
> >
> > P.S. If there's a better way to do the number->word conversion, let me
> > know.
> >
> > On Wednesday 12 November 2008 10:17:35 am Wolfgang Schuster wrote:
> >> Am 12.11.2008 um 18:03 schrieb Bart C. Wise:
> >>> Okay, it works until I place an an argument in the stretched command.
> >>>
> >>> def\MyChapterCommand#1#2{
> >>>       \framed[align=center,frame=off,width=\textwidth]{
> >>> 		\vbox{
> >>> fails-->			\stretched{#2}
> >>> works-->			\stretched{This is a Test}
> >>> 		}
> >>> 	}
> >>> \setuphead[chapter][
> >>>   command=\MyChapterCommand
> >>> }
> >>>
> >>>
> >>> I get the following error when I run texexec:
> >>>
> >>> ! Missing \endcsname inserted.
> >>> <to be read again>
> >>>                   \let
> >>> \nextprocessedtoken ...oup \ifincolor \ifcsname #1
> >>>                                                  #3\endcsname \let
> >>> \dostopa...
> >>>
> >>> \dodoprocesstokens ...token \let \before \between
> >>>                                                  \fi \let
> >>> \nextprocessedtok...
> >>> <argument> This is a test: \dostartattributes
> >>>                                              {\??ko \v!title }\c!style
> >>> \c!c...
> >>>
> >>> \processtokens ...fore \before \doprocesstokens #5
> >>>                                                  \lastcharacter
> >>> \endgroup
> >>> \stretched ... \relax \hss \relax {\hss \hss }{#1}
> >>>                                                  \egroup
> >>> ...
> >>>
> >>> How can I use the #1 & #2 arguments in the stretched command?
> >>
> >> You could use it only with \deeptextcommand, here is a old mail
> >> with a example from Hans (you could ignore the other code).
> >>
> >> http://archive.contextgarden.net/message/20060113.102321.bf24d7ca.en.htm
> >>l
>
> look for the property mechanism
>
> \startproperty[stretch]stretched\stopproperty
>
> token processing is always tricky since the parser does not know what to
> expect; properties use a pdf trick; in mkiv we have more clever stretching
>
>

Hans,

I tried the above code and it failed.  I looked around on the ConTeXt site and 
the web in general.  It seems like a \defineproperty[stretch] needs to be 
declared, but I can't find it anywhere.  You'll have to excuse my ignorance, 
but will you be explicit on how to use the \startproperty[stretch] stretch 
\stopproperty.

Bart
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