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54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
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# -*- coding: utf-8; mode: python; -*-
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#
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# GStreamer Development Utilities
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#
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# Copyright (C) 2007 René Stadler <mail@renestadler.de>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the Free
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# Software Foundation; either version 3 of the License, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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# more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program. If not, see <http://www.gnu.org/licenses/>.
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"""GStreamer development utilities common Data module"""
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import pygtk
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pygtk.require ("2.0")
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import gobject
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class Dispatcher (object):
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def __call__ (self, iterator):
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raise NotImplementedError ("derived classes must override this method")
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class DefaultDispatcher (Dispatcher):
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def __call__ (self, iterator):
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for x in iterator:
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pass
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class GSourceDispatcher (Dispatcher):
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def __init__ (self):
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Dispatcher.__init__ (self)
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self.source_id = None
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def __call__ (self, iterator):
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if self.source_id is not None:
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gobject.source_remove (self.source_id)
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self.source_id = gobject.idle_add (iterator.next)
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