[PyQt] pyuic expects certain property methods in Designer plugins

[Phil Thompson]

On Saturday 06 October 2007, Arve Knudsen wrote:
> On 10/6/07, Phil Thompson <phil at riverbankcomputing.co.uk> wrote:
> > On Friday 05 October 2007, Arve Knudsen wrote:
> > > Hi
> > > I've just written a Designer plugin in Python, which I have to say is
> >
> > very
> >
> > > nice. However I discovered some surprising behaviour in pyuic. My
> > > widget contains Qt properties (defined using pyqtProperty), but the
> > > generated
> >
> > code
> >
> > > don't use the properties, instead it tries to use the underlying
> >
> > methods!?
> >
> > > I discovered this for the reason that I use a different naming
> >
> > convention
> >
> > > than pyuic apparently expected. For instance, I had a property "value",
> >
> > for
> >
> > > which pyuic expected there to be a setter method "setValue". I hope it
> > > isn't on purpose that pyuic tries to use underlying methods instead of
> >
> > the
> >
> > > properties themselves?
> > >
> > > I'm using PyQt 4.3 commercial edition.
> > >
> > > Thanks,
> > > Arve
> >
> > If everything is working as it should then it depends on what you have
> > called
> > the setter. If it begins with "set" then pyuic (and uic) should use it
> > directly and not use setProperty(). However this has probably not had a
> > lot
> > of testing.
> >
> > What have you called your setter?
>
> Let's say the property is called "value". I called my setter _set_value,
> pyuic inferred the setter's name to be setValue.
>
> Does uic behave differently to pyuic?
>
>
> I haven't used uic for some time, but this point is kind of moot since C++
> doesn't have properties while Python does :)

Qt/C++ does have properties.

> The point is that I can't see 
> that there is any reason for pyuic to try and use the setter method, when
> it can simply use the property (i.e., obj.value = something).

Because it needs to have the same behaviour as uic. If it doesn't then it is 
clearly a pyuic bug. If not then it may be a bug in the implementation of 
pyqtProperty.

Can you send me a .ui file?

Phil