fb40ac54fc
Core and Connection classes are now used as singletons, we do not need to pass them to each Tab and Win. This remove a lot of arguments to varius methods.
29 lines
1 KiB
Python
29 lines
1 KiB
Python
# Copyright 2010-2011 Le Coz Florent <louiz@louiz.org>
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#
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# This file is part of Poezio.
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#
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# Poezio is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# Poezio is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Poezio. If not, see <http://www.gnu.org/licenses/>.
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"""
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Defines a Singleton function that initialize an object
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of the given class if it was never instantiated yet. Else, returns
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the previously instantiated object.
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This method is the only one that I can come up with that do not call
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__init__() each time.
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"""
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instances = {}
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def Singleton(cls, *args, **kwargs):
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if not cls in instances:
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instances[cls] = cls(*args, **kwargs)
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return instances[cls]
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