[PyKDE] PyQt4: Promoting a custom widget in qt4 designer

[Sebastian Kügler]

On Monday 04 December 2006 13:53, Andreas Pakulat wrote:
> On 06.12.06 13:37:39, Sebastian Kügler wrote:
> > On Monday 04 December 2006 11:23, Andreas Pakulat wrote:
> > > On 04.12.06 03:38:47, Eriol wrote:
> > > > I'm trying to use custom widget promotion in qt4 designer. I attach
> > > > an example of what I'm doing: what's wrong with it?
> > > > I have searched for documentation about this, but I didn't find
> > > > anything for Python.
> > >
> > > You're creating the label without a parent widget, so it becomes a
> > > top-level window. Pass self to the constructor of QLabel and it works.
> >
> > Slightly OT (in fact more a general question):
> >
> > So it is possible to create a custom widget with PyQt4 and use it in
> > qt4-designer?
>
> Yes and now. It only works via the "Promote to Custom Widget" function,
> which means using one of the existing widgets and place it into the
> form, then choosing the "header" for the custom widget and the class via
> a dialog. You won't see the custom widget in Qt4 designer, all you'll
> see is the "standard" widget you placed into the form.

Fair enough.

> pyuic4 then translates foobar.h into foobar.py and puts:
>
> from foobar import FoobarClass
>
> into the generated code.
>
> Real custom widgets are rather complicated, for Qt3 somebody managed to
> have python-kparts which could be used in Python or C++ KDE apps which
> is also a plugin...

Thanks for the explanation!
-- 
sebas

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