[PyKDE] Static member functions

[Hihn, Jason]

Ok, my problem is that I want to provide some function that is called by
the widget that generates the signal.

I have an On-Screen Keyboard. Each text-control gets assigned a
lostFocus handler. I need that handler to do one thing. I need it to
store that widget's id (or instance) so the OSK knows where to write the
characters to.

The issue I am having is in my previous environment, I could just say
the equivalent of:

Dlg.child('text1').lostFocusEvent=some_func()
#0 params passed

And some_func() would be given the 'this' object by the interpreter
(because it was then a member function of the class). This is not the
case for python. Assigning a global some_func() to an object does not
get the self object, even though it is now in the object's name space.

For connects, I tried:
Dlg.connect(dlg.child('text'), SIGNAL('lostFocus()'), setKeyboardDest)
#0 params passed

Dlg.connect(dlg.child('text'), SIGNAL('lostFocus()'),
self.setKeyboardDest)
# 1 param, self, passed, but this is the dialog instance


Furthermore, the dialogs that receive input are created from
QWidgetFactory, so I don't know if I can subclass the text controls at
runtime.

I am lost, lost, lost. I figure the ultimate way out is to assign each
slot to a separate function, but that is not elegant, since they would
all be of the form:

Def text1_lostfocus(self)
	Globals.lastText=self.dlg.child('text1')
... repeat for each text box...

Then connect the signal to each indivisual slot. It is quite a waste
though. Also, adding text boxes would require recoding of the python
script, where the old method would not.


> -----Original Message-----
> From: pykde-bounces at mats.imk.fraunhofer.de [mailto:pykde-
> bounces at mats.imk.fraunhofer.de] On Behalf Of Sundance
> Sent: Monday, December 13, 2004 7:38 PM
> To: pykde at mats.imk.fraunhofer.de
> Subject: Re: [PyKDE] Static member functions
>
> I heard Hihn, Jason said:
>
> > How can I do this in python?
>
> It may be I'm not getting your question, but... What's the problem
> exactly? You can have global objects (which includes functions) all
you
> want, really.
>
> Example:
>
> ---[ globalstuff.py
]--------------------------------------------------
> data = None
>
-----------------------------------------------------------------------
>
> ---[ A.py
]------------------------------------------------------------
> import globalstuff
> def functionA():
>   globalstuff.data = 42
>
-----------------------------------------------------------------------
>
> ---[ B.py
]------------------------------------------------------------
> import globalstuff
> def functionB():
>   print "The global data contains:", globalstuff.data
>
-----------------------------------------------------------------------
>
> ---[ main.py
]---------------------------------------------------------
> import globalstuff
>
> from A import functionA
> from B import functionB
>
> # Set the global bit of data with functionA() from module A:
> functionA()
>
> # Print the global bit of data with functionB() from module B:
> functionB()
>
> # Set the global bit of data ourselves:
> globalstuff.data = "Nobody expects the Spanish Inquisition!"
>
> # Then print it with functionB() from module B:
> functionB()
>
> print "See, Jason? I don't understand what your problem is, exactly."
>
-----------------------------------------------------------------------
>
> Does this answer your question?
>
> -- S.
>
> _______________________________________________
> PyKDE mailing list    PyKDE at mats.imk.fraunhofer.de
> http://mats.imk.fraunhofer.de/mailman/listinfo/pykde



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