[PyQt] Segfault when activating items in a view, more info

[Andreas Pakulat]

On 09.08.10 13:31:15, Hans-Peter Jansen wrote:
> On Monday 09 August 2010, 12:20:36 Andreas Pakulat wrote:
> > If you use this model on a treeview you'll probably end up in an infinite
> > tree size. The reason is that you're returning a child-count of 2 for
> > each and every index (and the treeview is going to ask for the row-count
> > of each toplevel entry). Try to add a check for index.isValid() and only
> > return 2 if its not a valid index.
> 
> Yes, that did the trick. As Peter said, this is rather counterintuitive as 
> an table API, but anyway. For any descendants:

See my answer to peter, there's no such thing as a 'table API' in Qt's
itemviews. There's only a generic model API and thats what all views from
Qt itself rely upon.

> BTW, this model reveals another issue: the focus can be set to all table 
> items by clicking with the mouse, but only to the left column items by 
> keyboard. Is that to be expected? Given, above is enough to implement a 
> read only table, shouldn't it handle keyboard navigation properly, too? 

Do you mean the focus rectangle (on linux this is a small dotted line
around the current item) or the normal selection? Both things are not
dependent upon the actual model, only the view.

Andreas

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