On Mon, 25 Oct 1999, WroBELL wrote:

> On Mon, 25 Oct 1999, Bernhard Herzog wrote:
> 
> > WroBELL <[EMAIL PROTECTED]> writes:
> > 
> > > On Mon, 25 Oct 1999, James Henstridge wrote:
> > > 
> > > > It is not currently possible to do this with pygtk.  The GTK+ type system
> > > > is one part of gtk that is difficult wrap.  What do you need the
> > > > functionality for?
> > >   I need it for dialog which should emit "add_data" signal
> > > when "Add" button is pressed.  Hmmm... Nevermind, I will
> > > connect directly to the button (it is dirty, but will
> > > work).
> > 
> > FWIW, Sketch contains a pretty generic mechanism for this kind of thing.
> > It's pure Python and completely toolkit/platform independent.
> > 
> > You would simply derive your dialog class from the Publisher class.
> > Publisher defines methods for subscribing and unsubscribing from
> > messages, so somewhere else in your code you would have something like
> > 
> >   dialog.Subscribe('add_data', add_data_function)
> > 
> > The different signal types are identified by strings.
> > 
> > The dialog would then call
> > 
> >   self.issue('add_data')
> > 
> > or, to pass arguments to the subscribers,
> > 
> >   self.issue('add_data', data1, data2) # arbitrary arguments are allowed here
> > 
> > whenever the add button is pressed.
> > 
> > IMO, if you already use Python, it makes more sense to implement
> > mechanisms like this in Python than going through GTK.
> > 
> > If you already have Sketch, it's in Sketch/Base/connector.py. If there's
> > enough interest, I can make it available separately and write up some
> > documentation.
>  I think it would a great idea.
 Hmmm... Another idea... But maybe include it (Publisher class)
into pygtk and then GtkObject could derive from Publisher?

 WroBELL <[EMAIL PROTECTED]>
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