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This tutorial關於在Python中使用GObject僅涵蓋使用gobject.TYPE_FLOAT
類型的屬性。在PyGTK/GObject中使用枚舉屬性
我已經適應它使用一個枚舉類型:
import pygtk
pygtk.require('2.0')
import gobject
FUEL_NONE = 0
FUEL_SOME = 1
FUEL_FULL = 2
class Car(gobject.GObject):
__gproperties__ = {
'fuel' : (gobject.TYPE_ENUM, # type
'fuel of the car', # nick name
'amount of fuel that remains in the tank', # description
FUEL_SOME, # default value
gobject.PARAM_READWRITE) # flags
}
# <<rest of demo code>>
...但是當我嘗試運行它,我得到以下錯誤:
/usr/lib/pymodules/python2.5/gtk-2.0/gobject/__init__.py:114: Warning: g_param_spec_enum: assertion `g_enum_get_value (enum_class, default_value) != NULL' failed
type_register(cls, namespace.get('__gtype_name__'))
Traceback (most recent call last):
File "gcar.py", line 9, in <module>
class Car(gobject.GObject):
File "/usr/lib/pymodules/python2.5/gtk-2.0/gobject/__init__.py", line 60, in __init__
cls._type_register(cls.__dict__)
File "/usr/lib/pymodules/python2.5/gtk-2.0/gobject/__init__.py", line 114, in _type_register
type_register(cls, namespace.get('__gtype_name__'))
TypeError: Error when calling the metaclass bases
could not create param spec for type GEnum (while registering property 'fuel' for GType '__main__+Car')
我缺少什麼?
「......除非你真的需要GObject系統來理解你枚舉的細節......」 - 不,我不知道。它在那裏,使用它似乎是明智的,但「int」和我一樣好。 – detly 2010-06-29 03:45:49