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import gobject
class C(gobject.GObject):
__gsignals__ = {
'my_signal': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
(gobject.TYPE_INT,))
}
def __init__(self):
self.__gobject_init__() # default constructor using our new GType
def do_my_signal(self, arg):
print "C: class closure for `my_signal' called with argument", arg
gobject.type_register(C)
class D(C):
def do_my_signal(self, arg):
print "D: class closure for `my_signal' called. Chaining up to C"
C.do_my_signal(self, arg)
gobject.type_register(D)
def my_signal_handler(object, arg, *extra):
print "handler for `my_signal' called with argument", arg, \
"and extra args", extra
inst = C()
inst2 = D()
inst.connect("my_signal", my_signal_handler, 1, 2, 3)
inst.emit("my_signal", 42)
inst2.emit("my_signal", 42)
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