[PyKDE] pyqt and new-style classes

[Roland Schulz]

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Am Freitag, 20. Februar 2004 10:59 schrieb Ulrich Berning:
> Roland Schulz schrieb:
> >On Do, 2004-02-19 at 11:55, Ulrich Berning wrote:
> >>Phil Thompson schrieb:
> >>>On Wednesday 18 February 2004 19:04, Eron Lloyd wrote:
> >>
> >>Nevertheless it makes sense to implement QMetaObject and
> >>QMetaProperty, just in case someone plans to build a kind of dialog
> >>editor with PyQt (in the future, we want to give our customers the
> >>facility to create or modify dialogs or dialog components inside the
> >>application).
> >
> >I have done a lib to insert PyQt Widget as Plugin in QtDesinger with
> >editable properties (if you interested in this search for qtdesinger or
> >qwidgetplugin in the mail archive or just ask me). Jim, David and Phil
> >helped me to see that there is no point in implementing QMetaObject in
> >PyQt but do a Proxy in C++. The main reason were:
> >There is little use for those MetaObjects functions from Python space.
> >Even if you write a dialog editor in PyQt you would use the Qt functions
> >and they would query the MetaObjects. So even in this case those queries
> >would come from C++ space.
> >
> >>From C++ space it looks like every class is a object of one of the
> >
> >wrapper class even if it only indirectly subclass of a wrapper class. So
> >from C++ space it seams that e.g. a python object of a QWidget class has
> >the same class as a object of a python class derived from QWidget. Since
> >most of the MetaObject stuff is done with statics this would complicate
> >it further.
> >Like I said, just ask or look at the archives for more information.

> I'm not talking about Designer plugins or about creating new widget
> classes with PyQt, that can be used in a dialog editor. I'm talking
> about querying the properties of the existing Qt widget classes.
I understood this, but I thought incorretly that there are classes more 
apropriate to use then directly using QMetaObject. But I was wrong and you're 
right QMetaObject should be implemented if someone wants to write something 
like designer in pyqt. But why not just using desinger like eric or kdevelop 
do? I think I read that something like kpart is also planned for qt, so one 
could integrate designer in the app.

regards
Roland
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