Re: Custom Signals Support

Andrei Zmievski wrote:
> Elizabeth,
>
> Supporting custom signals will be quite a bit more involved than this. 
> It'll probably be based on created a new class which will contain its 
> signal descriptions and then registering it with GType system. If I have 
> time this weekend I might work on that.. Unless we want to do beta 
> release first.
> -Andrei
Evening Andrei,

I didn't mean to imply that the patch did all of custom signal support, 
just that I had the first part of it working. (you can register new 
signals with it and they do work)
As far as I'm aware pygtk allows two ways of registering new signals.

The gobject::signal_new method implementation I sent in the patch was 
just a php version of 
http://www.pygtk.org/docs/pygobject/gobject-functions.html#function-gobject--signal-new
The difference there is the signal_new I wrote is more flexible in it's 
callback implementation.  Python requires you to have a do_{signalname} 
method in your class for the callback - I'm not sure if we really want 
to be adding a ton of magic for a signal callback... and would also 
force you to extend a base class like gtkwindow in order to be able to 
add a new signal to it. (python has more flexibility in "adding in" 
methods to an existing class)
Pygtk also has the support as you mentioned for extending a class by 
using "magic properties" __gtype__ and a __signals__ so you can give 
your class a custom gtype and auto register signal.  (If you required 
this for extended classes to have their own signals that would fix the 
first gtype issue I asked about)  I didn't write that support (yet) 
because I wasn't sure if you wanted to head the pygtk route, or had a 
different implementation approach in mind.
Second issue still stands - how do you grab the gtype from the 
zend_class_entry?
And just a random question - why are basic gtype constants defined in 
gtk and not in gtype or gobject .... just curious
Thanks,
Elizabeth

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