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diff --git a/wizards/com/sun/star/wizards/ui/event/DataAware.py b/wizards/com/sun/star/wizards/ui/event/DataAware.py
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+++ b/wizards/com/sun/star/wizards/ui/event/DataAware.py
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+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# This file incorporates work covered by the following license notice:
+#
+#   Licensed to the Apache Software Foundation (ASF) under one or more
+#   contributor license agreements. See the NOTICE file distributed
+#   with this work for additional information regarding copyright
+#   ownership. The ASF licenses this file to you under the Apache
+#   License, Version 2.0 (the "License"); you may not use this file
+#   except in compliance with the License. You may obtain a copy of
+#   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+#
+import traceback
+import uno
+from abc import ABCMeta, abstractmethod
+
+from com.sun.star.util import Date
+from com.sun.star.util import Time
+from datetime import datetime
+
+'''
+DataAware objects are used to live-synchronize UI and DataModel/DataObject.
+It is used as listener on UI events, to keep the DataObject up to date.
+This class, as a base abstract class, sets a frame of functionality,
+delegating the data Object get/set methods to a Value object,
+and leaving the UI get/set methods abstract.
+Note that event listening is *not* a part of this model.
+the updateData() or updateUI() methods should be programmatically called.
+in child classes, the updateData() will be bound to UI event calls.
+<br><br>
+This class holds references to a Data Object and a Value object.
+The Value object "knows" how to get and set a value from the
+Data Object.
+'''
+
+class DataAware(object):
+    __metaclass__ = ABCMeta
+
+    '''
+    creates a DataAware object for the given data object and Value object.
+    @param dataObject_
+    @param value_
+    '''
+
+    def __init__(self, dataObject_, field_):
+        self._dataObject = dataObject_
+        self._field = field_
+
+    '''
+    sets the given value to the UI control
+    @param newValue the value to set to the ui control.
+    '''
+    @abstractmethod
+    def setToUI (self,newValue):
+        pass
+
+    '''
+    gets the current value from the UI control.
+    @return the current value from the UI control.
+    '''
+
+    @abstractmethod
+    def getFromUI (self):
+        pass
+
+    '''
+    updates the UI control according to the
+    current state of the data object.
+    '''
+
+    def updateUI(self):
+        try:
+            data = getattr(self._dataObject, self._field)
+        except Exception:
+            data = uno.invoke(self._dataObject, "get" + self._field, ())
+        ui = self.getFromUI()
+        if data is not ui:
+            try:
+                self.setToUI(data)
+            except Exception:
+                traceback.print_exc()
+
+    '''
+    updates the DataObject according to
+    the current state of the UI control.
+    '''
+
+    def updateData(self):
+        useUno = False
+        try:
+            try:
+                data = getattr(self._dataObject, self._field)
+            except Exception:
+                useUno = True
+                data = uno.invoke(self._dataObject, "get" + self._field, ())
+            ui = self.getFromUI()
+            if data is not ui:
+                if isinstance(ui,Date):
+                    d = datetime(ui.Year, ui.Month, ui.Day)
+                    ui = d.strftime('%d/%m/%y')
+                elif isinstance(ui,Time):
+                    t = datetime(1, 1, 1, ui.Hours, ui.Minutes)
+                    ui = t.strftime('%H:%M')
+                if useUno:
+                    uno.invoke(self._dataObject, "set" + self._field, (ui,))
+                else:
+                    if isinstance(ui,tuple):
+                        #Listbox Element
+                        ui = ui[0]
+                    setattr(self._dataObject, self._field, ui)
+        except Exception:
+            traceback.print_exc()