bug in alignbox

bug in alignbox

[Vit Zyka]

[-- Attachment #1: Type: text/plain, Size: 1314 bytes --]

Hallo Hans,

I have played with positioning text in layers. I noticed that parameter "location=t" 
  \setlayer[MyLayer][...,location=t,...]{...}
behaves the same way as "location=c". It seems to me it is the bug in optimized definition of 
\alignedbox. If I use commented version of \alignedbox from source file core-box.tex
it is OK. Can you look at it, please?

Test file:
------------------------------------------------------------------
\definelayer[PositionText][position=no,corner=buttom,height=\textheight,option=test]
\def\PosText(#1,#2)[#3]#4{%
  \setlayer[PositionText][x=#1,y=#2,location=#3]{#4}%
  \ignorespaces}
\setupbackgrounds[text][background={PositionText}]

\switchtobodyfont[20pt]
\starttext

\PosText(.3\textwidth,.3\textheight)[c]{Center}
\PosText(.3\textwidth,.3\textheight)[t]{Top}
\PosText(.3\textwidth,.3\textheight)[b]{Bottom}
\PosText(.3\textwidth,.5\textheight)[l]{Left}
\PosText(.3\textwidth,.5\textheight)[r]{Right}
\PosText(.7\textwidth,.5\textheight)[tl]{TopLeft}
\PosText(.7\textwidth,.5\textheight)[tr]{TopRight}
\PosText(.7\textwidth,.5\textheight)[bl]{BottomLeft}
\PosText(.7\textwidth,.5\textheight)[br]{BottomRight}

Ap\hskip1.5em
\alignedbox[b]\hbox{ApB}\hskip1.5em
\alignedbox[c]\hbox{ApC}\hskip1.5em
\alignedbox[t]\hbox{ApT}

\stoptext

[-- Attachment #2: Type: text/html, Size: 2531 bytes --]

Re: bug in alignbox

[Hans Hagen]

At 10:53 14/05/2004, you wrote:
>Hallo Hans,
>
>I have played with positioning text in layers. I noticed that parameter 
>"location=t"
>   \setlayer[MyLayer][...,location=t,...]{...}
>behaves the same way as "location=c". It seems to me it is the bug in 
>optimized definition of
>\alignedbox. If I use commented version of \alignedbox from source file 
>core-box.tex
>it is OK. Can you look at it, please?

ah, a real seious bug! You need to fix both b and t:

\setvalue{\??ab\??ab  b}{\bottombox}
\setvalue{\??ab\??ab  t}{\topbox}

Hans  

Re: layers (was bug in alignbox)

[pawcoo]

Vit Zyka wrote:

> Hallo Hans,
> 
> I have played with positioning text in layers. I noticed that parameter "location=t" 
>   \setlayer[MyLayer][...,location=t,...]{...}
> behaves the same way as "location=c". It seems to me it is the bug in optimized definition of 
> \alignedbox. If I use commented version of \alignedbox from source file core-box.tex
> it is OK. Can you look at it, please?

BTW, how to use context layers to produce PDF layers I can switch on and
off using arobat 6? I've compiled the sample and the result doesn't
contains PDF layers.

Regards, Pawe/l