Added identifier list update on selection changed.

fluents/selections.py

@@ -105,6 +105,12 @@ class IdListController:
         """Set the selection to be displayed.
         The selection is not stored, the values are copied into the TreeStore"""
         self._idstore.clear()
+
+        # Return if no selection
+        if selection == None:
+            return
+
+        # Otherwise show selection, possibly with annotations.
         id_list = list(selection[self._dimension])
         idlist = list(selection[self._dimension])
         if self._annotation[self._dimension] != None:
@@ -224,6 +230,9 @@ class SelectionListController:
     #
     # Public interface
     #
+    def activate(self):
+        self._seltree.set_cursor((0,))
+
     def set_project(self, project):
         """Dependency injection."""
         self.project = project
@@ -258,6 +267,12 @@ class SelectionListController:
                     if row[1]==selection:
                         row[3] = row[4] = len(selection[dim])
 
+        path = self._seltree.get_cursor()
+        if path and self._sel_stores.has_key(self._dimension):
+            it = self._sel_stores[self._dimension].get_iter(path[0])
+            sel = self._sel_stores[self._dimension].get_value(it, 1)
+            self._idlist_controller.set_selection(sel)
+
     def add_dataset(self, dataset):
         """Converts a CategoryDataset to Selection objects and adds it to
         the selection tree. The name of the dataset will be the parent 
@@ -390,6 +405,8 @@ class SelectionListController:
 
         if isinstance(obj, dataset.Selection):
             self._idlist_controller.set_selection(obj)
+        else:
+            self._idlist_controller.set_selection(None)
         
     def _on_row_activated(self, widget, path, column):
         store = self._sel_stores[self._dimension]
@@ -526,6 +543,7 @@ class DimListController:
         i = self.dimlist.get_model().get_iter(cursor)
         row = self.dimlist.get_model().get_value(i, 0)
         self.set_dimension(row)
+        self._seltree_controller.activate()
 
     def _dim_row_activated(self, widget, path, column):
         self._seltree_controller.set_dimension(dim)