New ProjectModel implementation

[David Nolden]

2010/6/27 Andreas Pakulat <apaku at gmx.de>:
> Hi,
>
> just to let you know, I've just merged the rewrite of the projectmodel
> API I've worked on into master. Its now indepdenent of any GUI
> dependencies and doesn't use QStandardItemModel anymore but custom
> items. This also allowed to minimize the API a bit and make it more
> specific (a real rename function instead of some hidden way of using
> setData).
>
> I couldn't see any regressions and we do have a quite good unit-test for
> it too. (it covers around 60% currently IIRC).
>
> It'll hopefully also make it easier to change the actual implementation
> to a ref-counted version or something other. I'm not sure thats really
> necessary though, it should be enough if places that do store
> item-pointers also listen to model-signals to find out wether their item
> is deleted and then remove it from their internal storage.

That would be very inconvenient, but with some smart-pointer like
thing which listens to those signals, it should be fine (it should
just become zero when the item is deleted).