perfect centering of layers in a text area

perfect centering of layers in a text area

[Bernd Donner]

Hello,

I'm converting some context from mkii to mkiv. Since the definelogo is 
depreciated I try to use layers to get the same result.

The problem in the example below is, the text in the header - which is a 
table - is not perfectly centered with respect to the bottomframe. What is 
the reason that the table is not perfectly centered with respect to the line 
and what is the correct solution?

Thank you,
Bernd




\setuppapersize[A4]

\language[de]
\enableregime[utf]

\setuplayout[backspace=2.0cm, height=fit, width=fit, rightmarginwidth=0.0cm,
        leftmargin=1.8cm, footerdistance=0.0cm,
        rightmargindistance=0.2cm, rightmargin=1.8cm, bottom=0.5cm,
        leftmargindistance=0.2cm, header=0.4cm, headerdistance=0.5cm,
        footer=0.5cm, top=0.0cm, topspace=0.0cm, bottomspace=0.0cm]

\definelayer[sabel]
  [x=0mm, y=0mm, width=\paperwidth, height=\paperheight, preset=lefttop]

\startsetups layer

\setlayer[sabel]
  [hoffset=0mm, voffset=0mm]
  {\tfx{\vbox
  {\bTABLE[option=stretch]
  \setupTABLE[rulethickness=0pt]
  \setupTABLE[column][1][align={right}, width=.4\textwidth]
  \setupTABLE[column][2][align={center}]
  \setupTABLE[column][3][align={left}, width=.4\textwidth]
  \bTR \bTD I want to be \eTD \bTD \eTD \bTD perfectly centered \eTD \eTR
  \eTABLE}}}

\stopsetups

\setupbackgrounds[header][text][bottomframe=on, setups=layer, 
background=sabel]
\setuppagenumbering[location=]

\starttext
thx
\stoptext

___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
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___________________________________________________________________________________

Re: perfect centering of layers in a text area

[Wolfgang Schuster]

Am 20.09.2014 um 02:56 schrieb Bernd Donner <Bernd.Donner@gmx.net>:

> Hello,
> 
> I'm converting some context from mkii to mkiv. Since the definelogo is 
> depreciated I try to use layers to get the same result.
> 
> The problem in the example below is, the text in the header - which is a 
> table - is not perfectly centered with respect to the bottomframe. What is 
> the reason that the table is not perfectly centered with respect to the line 
> and what is the correct solution?
> 
> Thank you,
> Bernd
> 
> 
> 
> 
> \setuppapersize[A4]
> 
> \language[de]
> \enableregime[utf]
> 
> \setuplayout[backspace=2.0cm, height=fit, width=fit, rightmarginwidth=0.0cm,
>        leftmargin=1.8cm, footerdistance=0.0cm,
>        rightmargindistance=0.2cm, rightmargin=1.8cm, bottom=0.5cm,
>        leftmargindistance=0.2cm, header=0.4cm, headerdistance=0.5cm,
>        footer=0.5cm, top=0.0cm, topspace=0.0cm, bottomspace=0.0cm]
> 
> \definelayer[sabel]
>  [x=0mm, y=0mm, width=\paperwidth, height=\paperheight, preset=lefttop]
> 
> \startsetups layer
> 
> \setlayer[sabel]
>  [hoffset=0mm, voffset=0mm]
>  {\tfx{\vbox
>  {\bTABLE[option=stretch]
>  \setupTABLE[rulethickness=0pt]
>  \setupTABLE[column][1][align={right}, width=.4\textwidth]
>  \setupTABLE[column][2][align={center}]
>  \setupTABLE[column][3][align={left}, width=.4\textwidth]
>  \bTR \bTD I want to be \eTD \bTD \eTD \bTD perfectly centered \eTD \eTR
>  \eTABLE}}}
> 
> \stopsetups
> 
> \setupbackgrounds[header][text][bottomframe=on, setups=layer, 
> background=sabel]
> \setuppagenumbering[location=]
> 
> \starttext
> thx
> \stoptext

\mainlanguage[de]

\setuplayout
  [backspace=2.0cm,
   height=middle,
   width=middle,
   leftmargin=1.8cm,
   footerdistance=0.0cm,
   rightmargindistance=0.2cm,
   rightmargin=1.8cm,
   bottom=0.5cm,
   leftmargindistance=0.2cm,
   header=0.4cm,
   headerdistance=0.5cm,
   footer=0.5cm,
   top=0.0cm,
   topspace=0.0cm,
   bottomspace=0.0cm]

\definelayer[sabel]

\startsetups[sabel]

\setlayerframed[sabel][x=0mm,y=0mm][frame=on,offset=none]
  {\setupTABLE[column][1][align=right, width=.4\textwidth]%
   \setupTABLE[column][2][align=center,width=.2\textwidth]%
   \setupTABLE[column][3][align=left, width=.4\textwidth]%
   \bTABLE[frame=off,style=\tfx]
     \bTR \bTD I want to be \eTD \bTD \eTD \bTD perfectly centered \eTD \eTR
   \eTABLE}

\stopsetups

\setupbackgrounds[header][text][bottomframe=on,setups=sabel,background=sabel]
\setuppagenumbering[location=]

\starttext
thx
\stoptext

Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________