[PyKDE] Python list handling for QRect, QPoint, and QSize

[Hans-Peter Jansen]

On Monday 04 November 2002 19:57, Phil Thompson wrote:
> On Monday 04 November 2002 6:36 pm, Hans-Peter Jansen wrote:
> > Hi Phil,
> >
> > since I catched the flu this weekend, I think of contributing something
> > useful to PyQt. Namely the IMHO missing handling of python lists, where
> > QRect, QPoint, and QSize objects are expected. (QColor?)
>
> I'm not sure I understand. Are you saying that you want to pass a list of
> (say) x and y coordinates wherever a QPoint was expected? (Wouldn't a tuple
> be better?)

Exactly. Why not support both.

Imagine a typical situation: restore position and size of an app:
(tuple or list doesn't matter much here)

        wh = self.cfg.mainScreenSize
        if wh:
            self.resize(wh[0], wh[1])
        xy = self.cfg.mainScreenLocation
        if xy:
            self.move(xy[0], xy[1])

would then read:

        if self.cfg.mainScreenSize:
            self.resize(self.cfg.mainScreenSize)
        if self.cfg.mainScreenLocation:
            self.move(self.cfg.mainScreenLocation)

Do you like this idea? 

> Or are you saying that you want to make QPoint behave a bit like a list?

Not really. Sorry for being too vague. 

> > On my first cursory look, there seem to be to ways, but I don't know
> > their implications:
> >
> > 1) implement __len__(), __getitem__() like in qstringlist.sip
> > 2) %MappedType Qxyz<QInt>, like in qvaluelist.sip
> >
> > Q1) Why is __setitem__ missing from 1
>
> Because I'm lazy and nobody has complained.

Fair enough.

> > Q2) Does method 2 provide transparent conversion from and to the correct
> >     types, whereever they're used? (e.g. QObject)
>
> Yes.
>
> Phil

Hans-Peter