Re: Absolute position in table cell

[Volker Mische <volker.mische@gmail.com>]

On 02/15/2016 11:45 AM, Hans Hagen wrote:
> On 2/15/2016 11:10 AM, Volker Mische wrote:
>> On 02/15/2016 10:58 AM, Hans Hagen wrote:
>>> On 2/15/2016 10:32 AM, Volker Mische wrote:
>>>> Hi all,
>>>>
>>>> I'd like to position some text in a corner of a natural table cell. I
>>>> got as far as being able to put the same text on every cell (a "p" in
>>>> the example). Now my problem is, how do I specify the contents of the
>>>> overlay/layer on a per cell basis?
>>>>
>>>> Best for me would be if I could define the text directly within the
>>>> cell. I'm surely open to a completely different solution that has the
>>>> same outcome.
>>>>
>>>> Here's the minimal example of what I currently have.
>>>>
>>>> \starttext
>>>>
>>>> \definelayer  [pagenumber][width=\overlaywidth,height=\overlayheight]
>>>> \defineoverlay[pagenumber][{\directsetup{pagenumber}\tightlayer[pagenumber]}]
>>>>
>>>>
>>>>
>>>> \startsetups pagenumber
>>>>     \setlayerframed
>>>>       [pagenumber]
>>>>       [preset=rightbottom]
>>>>       {p}
>>>> \stopsetups
>>>>
>>>> \bTABLE
>>>>     \setupTABLE[each][each][background=pagenumber]
>>>>     \bTR
>>>>       \bTD multiline \par text \eTD
>>>>       \bTD some cell \par with even \par more \par text \eTD
>>>>     \eTR
>>>> \eTABLE
>>>>
>>>> \stoptext
>>>
>>> \bTABLE
>>>    \bTR
>>>      \bTD multiline \par text \eTD
>>>      \bTD[background=pagenumber] some cell \par with even \par more \par
>>> text \eTD
>>>    \eTR
>>> \eTABLE
>>
>>
>> I wasn't clear enough. I still want to have `pagenumber` on every cell,
>> but I'd like to be able to define its contents within the cell (instead
>> of having something like "p" hard-coded).
>>
>> So I'm looking for something like
>>
>>      \bTD multiline \par text \setlayercontents[pagenumber]{newval}\eTD
>>      \bTD some cell \par with even \par more \par text
>> \setlayercontents[pagenumber]{differentval}\eTD
> \startsetups pagenumber
>    \setlayerframed
>      [pagenumber]
>      [preset=rightbottom]
>      {\getvariable{table}{p}}
> \stopsetups
> 
> \bTABLE
>    \setupTABLE[each][each][background=pagenumber]
>    \bTR
>      \bTD \setgvariable{table}{p}{b} multiline \par text \eTD
>      \bTD \setgvariable{table}{p}{p} some cell \par with even \par more
> \par text \eTD
>    \eTR
> \eTABLE

Thanks a lot that works.

I've a follow up question. I'd like to wrap the `\setgvariable` in a a
paragraph like thing. I found out about annotations, which look like
what I've after.

Though sadly I get an error message (! Undefined control sequence) when
I use annotations. It works when I hard-code a value within the
annotation, but it doesn't if I use the contents of the annotation. I've
also tried it the `\placeannotationcontent` way, but there I get the
same error. Here's the full example:

\starttext

\definelayer  [pagenumber][width=\overlaywidth,height=\overlayheight]
\defineoverlay[pagenumber][{\directsetup{pagenumber}\tightlayer[pagenumber]}]

\startsetups pagenumber
   \setlayerframed
     [pagenumber]
     [preset=rightbottom]
     {\getvariable{table}{p}}
\stopsetups

\define[2]\PageWrapper{\setgvariable{table}{p}{#2}}

\usemodule[annotation]
\defineannotation
 [pn]
 [alternative=command, command=\PageWrapper]

\bTABLE
   \setupTABLE[each][each][background=pagenumber]
   \bTR
     \bTD \startpn b \stoppn multiline \par text \eTD
     \bTD \startpn p \stoppn some cell \par with even \par more \par
text \eTD
   \eTR
\eTABLE

\stoptext

Cheers,
  Volker
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