[gtkmm] TreeView: Added unset_row_separator_func().

[Murray Cumming <murrayc src gnome org>]

commit 2646486cb8f4fff05521930be424a2310b4f2f24
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Sep 20 13:34:30 2011 +0200

    TreeView: Added unset_row_separator_func().
    
    * gtk/src/treeview.[hg|ccg]: Added unset_row_separator_func() because func
    may be NULL.

 ChangeLog            |    7 +++++++
 gtk/src/treeview.ccg |    5 +++++
 gtk/src/treeview.hg  |    7 +++++++
 3 files changed, 19 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index a76efef..46989a5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2011-09-20  Murray Cumming  <murrayc murrayc com>
 
+	TreeView: Added unset_row_separator_func().
+
+	* gtk/src/treeview.[hg|ccg]: Added unset_row_separator_func() because func 
+	may be NULL.
+
+2011-09-20  Murray Cumming  <murrayc murrayc com>
+
 	TreeView: set_row_separator_func(): Add some documentatino.
 
 	* gtk/src/treeview.hg: Add documentation to the method and to the typedef, 
diff --git a/gtk/src/treeview.ccg b/gtk/src/treeview.ccg
index a2126e0..4c2fa9a 100644
--- a/gtk/src/treeview.ccg
+++ b/gtk/src/treeview.ccg
@@ -476,5 +476,10 @@ void TreeView::unset_drag_dest_row()
   gtk_tree_view_set_drag_dest_row(gobj(), 0, GTK_TREE_VIEW_DROP_BEFORE /* Arbitrary. Ignored anyway. */);
 }
 
+void TreeView::unset_row_separator_func()
+{
+  gtk_tree_view_set_row_separator_func(gobj(), 0, 0, 0);
+}
+
 
 } // namespace Gtk
diff --git a/gtk/src/treeview.hg b/gtk/src/treeview.hg
index 258ae42..6927960 100644
--- a/gtk/src/treeview.hg
+++ b/gtk/src/treeview.hg
@@ -706,6 +706,13 @@ public:
    */
   void set_row_separator_func(const SlotRowSeparator& slot);
   _IGNORE(gtk_tree_view_set_row_separator_func, gtk_tree_view_get_row_separator_func)
+  
+  /** Removes the row separator function, so no separators are drawn.
+   * See set_row_separator_func().
+   *
+   * @newin{3,2}
+   */
+  void unset_row_separator_func();
 
   _WRAP_METHOD(void set_grid_lines(TreeViewGridLines grid_lines), gtk_tree_view_set_grid_lines)
   _WRAP_METHOD(TreeViewGridLines get_grid_lines() const, gtk_tree_view_get_grid_lines)