--- /dev/null
+# -*- coding: utf-8 -*-
+#######################################################################################
+# Plinn - http://plinn.org #
+# Copyright © 2009 Benoît PIN <benoit.pin@ensmp.fr> #
+# #
+# This program is free software; you can redistribute it and/or #
+# modify it under the terms of the GNU General Public License #
+# as published by the Free Software Foundation; either version 2 #
+# of the License, or (at your option) any later version. #
+# #
+# This program is distributed in the hope that it will be useful, #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
+# GNU General Public License for more details. #
+# #
+# You should have received a copy of the GNU General Public License #
+# along with this program; if not, write to the Free Software #
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. #
+#######################################################################################
+"""
+Plinn event interfaces.
+
+
+
+"""
+from zope.interface import Interface, Attribute
+
+class IObjectPositionModified(Interface) :
+ """
+ the object position has changed in his container
+ """
+
+ object = Attribute("The object that change position.")
+ parent = Attribute("The container of the object.")
+ position = Attribute("The new position of the object in its container.")
+
+
+class IZopeShutdownEvent(Interface) :
+ """
+ zope is shuting down
+ """
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