Re: problem with layers and line spacing

[Hans Hagen <pragma@wxs.nl>]

Brian R. Landy wrote:
> Hi, I am attempting to do some work with layers that can repeat (and 
> update) using \startsetups & \stopsetups.  However I find that the line 
> spacing in a \framed in the layers is not alterable and instead tracks 
> the font size on the page.  I'm attaching a simple example (it shows the 
> same issue under MKII and MKIV, although the \vbox{} example does not 
> work under MKII).
> 
> If you remove the \startsetups and \stopsetups the line spacing works 
> like it should.  While they are used, the line spacing in the layer's 
> \framed tracks the setting in \switchtobodyfont[12pt].  It does not 
> track to either 6pt or 8pt.  And I can't find a way to reset the spacing 
> (I tried adding in a \setupinterlinespace[reset]).
> 
> Am I doing something wrong?  I've tried with MKIV 2009.06.03 and 
> 2009.08.07, and MKII at contextgarden.
> 
> Thanks!
> Brian
> 
> \setupbodyfont[8pt]%
> \starttext
> \definelayer[RCheaderleft][preset=lefttop,width=\paperwidth, 
> height=\paperheight]%
> \definelayer[RCheaderright][preset=lefttop,width=\paperwidth, 
> height=\paperheight]%
> \startsetups[RClayers]%
> \setlayer[RCheaderleft][hoffset=\backspace,voffset=\topspace]{\vbox{Line 
> 1\\ Line 2}}%
> \setlayer[RCheaderright][hoffset=\backspace,voffset=\topspace]   
> {\switchtobodyfont[6pt]\framed[align={middle,flushright},width=broad]{Line 
> 1\\ Line 2}}%
> \stopsetups
> \setupbackgrounds[page][setups=RClayers,background={RCheaderleft,RCheaderright}]% 
> 
> \switchtobodyfont[12pt]
> \dorecurse{250}{test\par}
> \stoptext

there is a difference between:

\setupbodyfont     : global usage, document wide
\switchtobodyfont  : local usage, does not affect the header, footer etc

so, when the backgrounds are constructed, the 8pt is in charge

Hans


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