[gedit-latex] outline: Fix crash on save due to invalid pointer.

[Jose Aliste <jaliste src gnome org>]

commit 4d017c0ef308ffc400564f49c58fbe4d183df3f9
Author: Josà Aliste <jaliste src gnome org>
Date:   Sat Jul 23 22:03:44 2011 -0400

    outline: Fix crash on save due to invalid pointer.
    
    Save the expanded paths in the outline as a list of
    strings instead of a list of Gtk.TreePath
    
    Fixes bug #654403.

 latex/outline.py |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/latex/outline.py b/latex/outline.py
index f781f6e..3861af0 100644
--- a/latex/outline.py
+++ b/latex/outline.py
@@ -147,7 +147,7 @@ class BaseOutlineView(PanelView):
         """
         Mapping function for saving the current expand state
         """
-        self._expanded_paths.append(path)
+        self._expanded_paths.append(path.to_string())
 
     def _restore_state(self):
         """
@@ -157,9 +157,7 @@ class BaseOutlineView(PanelView):
 
         if self._expanded_paths:
             for path in self._expanded_paths:
-                self._view.expand_to_path(path)
-#        else:
-#            self._view.expand_to_path((0,))
+                self._view.expand_to_path(Gtk.TreePath.new_from_string(path))
 
     def _on_cursor_changed(self, view):
         store, it = view.get_selection().get_selected()