From 5511467f6f7eab041b53563c883f72cd7547402f Mon Sep 17 00:00:00 2001
From: mike <michael.jmontcalm@gmail.com>
Date: Wed, 02 Dec 2009 22:36:46 +0000
Subject: Creator : Updating for working property updates from activity to Shell (HACK alert in saveTutorial!!!)

---
(limited to 'tutorius/properties.py')

diff --git a/tutorius/properties.py b/tutorius/properties.py
index cc76748..85e8aa5 100644
--- a/tutorius/properties.py
+++ b/tutorius/properties.py
@@ -36,6 +36,9 @@ from .propwidgets import PropWidget, \
     FloatPropWidget, \
     IntArrayPropWidget
 
+import logging
+LOGGER = logging.getLogger("properties")
+
 class TPropContainer(object):
     """
     A class containing properties. This does the attribute wrapping between
@@ -62,6 +65,12 @@ class TPropContainer(object):
                         copy(propinstance.default))
 
         self.__id = hash(uuid.uuid4())
+        # The differences dictionary. This is a structure that holds all the
+        # modifications that were made to the properties since the action
+        # was last installed or the last moment the notification was executed.
+        # Every property change will be logged inside it and it will be sent
+        # to the creator to update its action edition dialog.
+        self._diff_dict = {}
 
     def __getattribute__(self, name):
         """
@@ -96,8 +105,11 @@ class TPropContainer(object):
         try:
             # We attempt to get the property object with __getattribute__ 
             # to work through inheritance and benefit of the MRO.
-            return props.__setitem__(name,
+            real_value = props.__setitem__(name,
                     object.__getattribute__(self, name).validate(value))
+            LOGGER.debug("Action :: caching %s = %s in diff dict"%(name, str(value))) 
+            self._diff_dict[name] = value 
+            return real_value
         except AttributeError:
             return object.__setattr__(self, name, value)
 
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