Add release/scripts/modules/extensions_framework (formerly known as exporter_framework).

release/scripts/modules/extensions_framework/plugin.py

@@ -0,0 +1,72 @@
+# -*- coding: utf8 -*-
+#
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# --------------------------------------------------------------------------
+# Blender 2.5 Extensions Framework
+# --------------------------------------------------------------------------
+#
+# Authors:
+# Doug Hammond
+#
+# 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, see <http://www.gnu.org/licenses/>.
+#
+# ***** END GPL LICENCE BLOCK *****
+#
+from . import init_properties
+from . import log
+
+import bpy
+
+class plugin(object):
+	
+	# List of IDPropertyGroup types to create in the scene
+	property_groups = [
+		# ('bpy.type prototype to attach to. eg. Scene', <declarative_property_group type>)
+	]
+	
+	@classmethod
+	def install(r_class):
+		# create custom property groups
+		for property_group_parent, property_group in r_class.property_groups:
+			call_init = False
+			if property_group_parent is not None:
+				prototype = getattr(bpy.types, property_group_parent)
+				if not hasattr(prototype, property_group.__name__):
+					init_properties(prototype, [{
+						'type': 'pointer',
+						'attr': property_group.__name__,
+						'ptype': property_group,
+						'name': property_group.__name__,
+						'description': property_group.__name__
+					}])
+					call_init = True
+					#print('Created IDPropertyGroup %s.%s' % (prototype, property_group.__name__))
+			else:
+				call_init = True
+			
+			if call_init:
+				init_properties(property_group, property_group.properties)
+				#print('Initialised IDPropertyGroup %s' % property_group.__name__)
+		
+		log('Render Engine "%s" initialised' % r_class.bl_label)
+	
+	@classmethod
+	def uninstall(r_class):
+		# unregister property groups in reverse order
+		reverse_property_groups = [p for p in r_class.property_groups]
+		reverse_property_groups.reverse()
+		for property_group_parent, property_group in reverse_property_groups:
+			prototype = getattr(bpy.types, property_group_parent)
+			prototype.RemoveProperty(property_group.__name__)