[reportlab-users] KeepTogether platypus Table

[Robin Becker]

dmiller wrote:

> I've implemented a simple extension to reportlab.platypus.Table 

> (ReportLab 2.0) that supports a KEEPTOGETHER command. The command 

> prevents page breaks within a given group of rows. It would be great if 

> this could be merged into the main platypus distribution (I'd be willing 

> to write a patch if there's interest). Note that this extension has not 

> been tested very thoroughly (e.g. negative table indices have not been 

> tested), so use at your own risk.

> 

> The code is attached.

> 

> ~ Daniel

.......

I don't see anything particularly against the concept. I guess the main problem 
is if it impacts badly on existing table code.

Certainly the split stuff is a bit flaky as the KEEPTOGETHER could move the 
split back into the repeat rows and we'd need to check for that.


Double looping the commands is a cpu waste so if this could be merged in it 
would be better.

I don't think I like the KEEPTOGETHER concept alone. It is really a split 
inhibition and I think I might want to say that a split should not occur before 
a specific row or after a specific row as well. In a KEEPTOGETHER group the 
first doesn't want a split after and the remainder don't want splits before so 
there are two more primitive properties of rows that could do the same thing.

I can't see the point of having an error/warning if start>=stop it just means 
there's no possible  split that could come between so dropping is OK.

Just mumbling
-- 
Robin Becker