Re: table background color in first row

[Hans Hagen <pragma@wxs.nl>]

On 11-11-2010 10:54, Aditya Mahajan wrote:
> This is mainly for completeness:
>
> On Thu, 11 Nov 2010, Manfred Lotz wrote:
>
>> and like to have a light gray background for the heading row.
>
>> \starttext
>>
>> \starttable[|l|l|]
> \BL[2] \SR
> % or
> % \CL[gray] \SR
>> \NC \bf Colheader 1 \NC \bf Colheader 2 \NC \SR \HL
>> \NC cell 11 \NC cell 12 \NC \FR
>> \NC cell 11 \NC cell 12 \NC \LR
>> \stoptable
>>
>> \stoptext
>
> Both \BL and \CL work with MkII but in MkIV \BL gives a black rule
> (rather than gray), which \CL gives an error. Hans, any ideas?
>
> For a simple table, you can also use
>
> \startTABLE
> \NC .... \NC ... \NC \NR
> \NC .... \NC ... \NC \NR
> \stopTABLE
>
> which is wrapper around \bTABLE .. \eTABLE.

The color handling in the old table module is implemented by overloading 
TaBlE code and quite a hack. In mkiv it's easy to add color support but 
then I'd rather remove some of the old commands. In tabulate one can do 
(experimental so not enabled by default):

\ctxlua{nodes.tasks.enableaction("shipouts","nodes.handlers.backgrounds")}

\starttabulate[||p||]
\NC test \NC test \NC test \NC \NR
\NC test \NC[green] \input tufte  \NC[yellow] test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC[blue] test \NC[red] test \NC test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC test \NC[gray] test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC[blue] test \NC test \NC test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC test \NC[magenta] test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC[cyan] \dorecurse{10}{\input ward }\NC test \NC \NR
\NC test \NC test \NC test \NC \NR
\NC test \NC[yellow] test \NC test \NC \NR
\stoptabulate

So, if there's interest in the \starttable .. \stoptable mechanism (i 
have no idea how often it is used) I can consider weeding and redoing 
some of that code (or just rewrite it from scratch which is probably 
easier).

Hans


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                                           Hans Hagen | PRAGMA ADE
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