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List:       pykde
Subject:    Re: [PyQt] =?utf-8?q?how_to_get_all_the_signal_from_a_QObject/QWidget?=
From:       Phil Thompson <phil () riverbankcomputing ! com>
Date:       2012-02-17 8:51:44
Message-ID: e488672df31b411617a0b2f539da1731 () localhost
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On Thu, 16 Feb 2012 15:19:18 -0800, Emmanuel Mayssat <emayssat@gmail.com>
wrote:
> I have a widget inside another widget.
> 
> 1/
> I would like to have a ~for loop that propagate all the signals of the
> inner widget as if they were emitted by the container widget.
> That is for each signals
> self.connect(myChild, SIGNAL("mySignal()"), self.mySignal.emit())

The above line won't work, use...

self.connect(myChild, SIGNAL("mySignal()"), self.mySignal)

> how can I list the signals that an object has?

Use the standard Qt introspection classes starting with QMetaObject or do
a dir() on the class and look for instances of pyqtSignal.

> 2/
> I understand also that the signals needs to be declared at both levels.
> Is there a way to do that progammatically?

No.

> 3/
> A propos, I noticed that inheritance doesn't seem to pass signal
> definition.

What makes you think that?

> That is
> 
> class Lwidget(QWidget):
>     mysignal = pyqtSignal()
> 
> class LSuperWidget(Lwidget):
>     <here the signal needs to be redefined>        <-- is there a way to
> avoid this?

Signals are inherited just like any other class attribute.

Phil
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