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"""This module contains the GtkAttributesFacade class."""
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from gobject import GObject
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class GtkAttributesFacade:
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"""Wrap a GTK instance to simplify the way attributes are referenced.
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Given a GTK instance i, make it possible for any functions i.get_foo() and
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i.set_foo(value) to be accessed via i.foo like a normal attribute.
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The following attributes are used:
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instance - This is the GTK instance that is being wrapped.
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def __init__(self, instance):
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"""Accept the instance."""
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self.__dict__["instance"] = instance
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def __setattr__(self, name, value):
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"""Simplify the way attributes are referenced.
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When trying to do self.foo = something, if there is a
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self.instance.set_foo() method, use it. Otherwise, just set the
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Return value so that chaining is possible.
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setter = "set_" + name
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if hasattr(self.instance, setter):
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apply(getattr(self.instance, setter), [value])
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self.__dict__[name] = value
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def __getattr__(self, name):
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"""Simplify the way attributes are referenced.
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Remember that this method is called after a failed lookup in self. Try
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looking for self.instance.foo. Next, try looking for a
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self.instance.get_foo() method, and call it if it exists. Otherwise,
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If a value is successfully looked up, and if it is a subclass of
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GObject, wrap it in a GtkAttributesFacade before returning it.
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getter = "get_" + name
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if hasattr(self.instance, name):
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ret = getattr(self.instance, name)
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elif hasattr(self.instance, getter):
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ret = apply(getattr(self.instance, getter))
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"%s instance has no attribute '%s'" %
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(self.instance.__class__.__name__, name))
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if isinstance(ret, GObject):
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ret = GtkAttributesFacade(ret)
added
removed
tools/device-manager/GtkAttributesFacade.py
