Re: a way to implement \testcolumn in mixedcolumns

[Hans Hagen <pragma@wxs.nl>]

On 11/20/2013 11:12 PM, Lars Huttar wrote:
> On 11/20/2013 4:47 PM, Lars Huttar wrote:
>> However one thing we do miss from columnsets is the control over widows
>> & orphans in two ways: \testcolumn, and \setupcolumnsetlines.
>> \testcolumn[n] allowed us to do a conditional column break, so when we
>> were about to start a new subsection heading, we could prevent it being
>> an orphan at the bottom of the column; and when starting a paragraph
>> with a hangaround graphic framed flushright and bottom, we could
>> similarly use \testcolumn to prevent the graphic from hanging down into
>> the footer (which is what sometimes happened otherwise).
>>
>> So I'm wondering, is there some way to achieve the equivalent of
>> \testcolumn in mixedcolumns?

for the moment add \penalty10000

> Here is a MWE:
>
> \starttext
>
>
> \startmixedcolumns[distance=5mm, balance=yes]
>
> \dorecurse {20} {
>
> \testcolumn[8]
>
> \subsection{Subsection Heading} \input knuth \endgraf
>
> }
>
> \stopmixedcolumns
>
>
> \stoptext
>
>
> You can see that the heading for subsection 6 is an orphan at the bottom
> of a column (at least, with the paper size settings I have; otherwise,
> I'm sure it happens somewhere else). If \testcolumn worked, the
> \testcolumn[8] would have shoved the subsection heading to the next
> column, because there was not space for 8 lines left in the column at
> that point.
>
> Any thoughts on how to fix this kind of occurrence?
>
> Thanks,
> Lars
>
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