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From: Wolfgang Schuster <schuster.wolfgang@googlemail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Centering a defined text frame
Date: Mon, 26 Jan 2009 16:14:11 +0100	[thread overview]
Message-ID: <115224fb0901260714t44f90104p68da9933b7424744@mail.gmail.com> (raw)
In-Reply-To: <200901260711.43247.bart@wiseguysweb.com>

Hi Bart,

> Is there a way to pass in my own defined parameters to such a function?
>
> I would like to be able to do something similar to the following:
>
> \startCenteredText[myownparm="This is a test"]
>   \startlines
>        My own parm is: \myownparm
>   \stoplines
> \stopCenteredText

Not with framedtext but you define your environment with a optional argument.

ConTeXt has the command \definestartstop but it did not help in your case,
something like LaTeXs \newenvironment, I wrote a simple version below.

\unprotect

\def\????ev{@@@@ev}

\def\environmentparameter#1%
  {\csname\????ev\currentenvironment#1\endcsname}

\def\defineenvironment
  {\dodoubleempty\dodefineenvironment}

\def\dodefineenvironment[#1][#2]%
  {\getparameters
     [\????ev#1]
     [\c!before=,
      \c!after=,
      #2]%
   \setvalue{\e!start#1}{\dodoubleempty\dostartenvironment[#1]}%
   \setvalue{\e!stop #1}{\dostopenvironment}}

\def\setupenvironment
  {\dodoubleargument\dosetupenvironment}

\def\dosetupenvironment[#1][#2]%
  {\getparameters[\????ev#1][#2]}

\def\dostartenvironment[#1][#2]%
  {\bgroup
   \edef\currentenvironment{#1}%
   \ifsecondargument
     \setupenvironment[\currentenvironment][#2]%
   \fi
   \environmentparameter\c!before}

\def\dostopenvironment
  {\environmentparameter\c!after
   \egroup}

\protect

\defineframedtext
  [CenteredTextFrame]
  [width=fit,
   location=middle]

\defineenvironment
  [CenteredText]
  [before=\startCenteredTextFrame\startlines,
   after=\stoplines\stopCenteredTextFrame]

\starttext

\startCenteredText[text={This is a test}]
My own parm is: \environmentparameter{text}
\stopCenteredText

\stoptext

Wolfgang
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  reply	other threads:[~2009-01-26 15:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-24 14:30 Bart C. Wise
2009-01-24 19:47 ` Willi Egger
2009-01-24 20:59   ` Bart C. Wise
2009-01-25 12:11 ` Wolfgang Schuster
2009-01-26 14:11   ` Bart C. Wise
2009-01-26 15:14     ` Wolfgang Schuster [this message]
2009-01-26 16:51       ` Bart C. Wise
2009-01-26 17:57         ` Wolfgang Schuster
2009-01-26 18:33           ` Bart C. Wise

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