wxWidgets 2.5.4

[Rob Gayvert]

Cees de Groot wrote:

> We moved our development to 0.4, no big surprises so far. I think the 
> grid  code can still do with some range checking, I'd need to check 
> the exact  spot but I had a VM crash when still using 0-based offsets, 
> I think when I  set column labels. The right-click problem seems to be 
> solved, although I  had problems in the tree with spurious events - 
> tree events coming in with  event items containing pointers that 
> didn't match any of the items in my  tree (I keep a list of items 
> around).

The range checking actually has a long way to go -- I've probably only 
done about 10% of what needs to be done. The problem is that it's a 
tedious job. In most cases, I have to check both the wxWidgets 
documentation and the source code to see how the boundary values are 
handled. Sometimes an index of -1 will be invalid, while other times it 
has special meaning. Once I get the API spec into a sqlite database it 
will be easier to add these checks.

As for tree events, I know there are some oddities. On OS X I had to 
disable the tree control demo because it kept crashing for some reason. 
But this line in the release notes for 2.5.4 gives us some hope:
            - Various changes to how wxListCtrl and wxTreeCtrl react to 
right
               mouse clicks and left mouse click for starting a drag 
operation.

> Hopefully the wx guys get the busy cursor over grids etcetera back 
> into  shape, as far as I can tell that's currently the only 'out of 
> our control'  issue in our application.

Well, a quick mod to the grid sample reveals that the problem is still 
there in 2.5.4.  I'll have to check with the wx mailing list about this.