Evgeny Chukreev wrote:
>Hello! [repost]
>
>I have tried to create private signal for my class.
>Now it looks like:
>
>-- - - - -- - - - - - - - - - - - - - - - --
>import gtk, gobject
>
>class A (gtk.Window, gobject.GObject):
>
eek! If you just want a gtk.Window subclass, don't also subclass from
gobject.GObject
> def __init__ (self):
> gobject.GObject.__init__ (self)
> gtk.Window.__init__ (self)
>
eek again. When creating a subclass that will have its own GType, don't
chain to the parent constructor, or the GObject you create won't have
the correct type. So only call gobject.GObject.__init__(self), or
self.__gobject_init__() (which is equivalent).
>
>gobject.signal_new ("no_undo", A,
> gobject.SIGNAL_RUN_FIRST,
> gobject.TYPE_NONE,
> ())
>
You need to tell pygtk to derive the new GType for your class before
adding signals, or you will end up adding them to the parent class.
>
>inst = A()
>
>print gobject.signal_list_names (inst)
>print gobject.signal_list_names (gtk.Window)
>- - - -- - - - - - - - - - - - - - - - - - - -
>I got this as result:
>
>('no-undo', 'set-focus', 'frame-event', 'activate-focus', 'activate-default',
>'move-focus', 'keys-changed')
>('no-undo', 'set-focus', 'frame-event', 'activate-focus', 'activate-default',
>'move-focus', 'keys-changed')
>
>Is there way to create 'no-undo' signal for the A class only (not for Window)?
>
>
Try changing your code to look like the following:
class A(gtk.Window):
__gsignals__ = { 'no_undo': (gobject.SIGNAL_RUN_FIRST, None, ()) }
def __init__(self):
self.__gobject_init__()
def do_no_undo(self):
print "no_undo class closure called!"
gobject.type_register(A)
That should do what you want.
James.
--
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