[gimp] Make sure all items of a subtree get added to / removed from the name hash

[Michael Natterer <mitch src gnome org>]

commit 37d10415df95901495b3c3bc354056a5fd690629
Author: Michael Natterer <mitch gimp org>
Date:   Tue Feb 9 00:25:10 2010 +0100

    Make sure all items of a subtree get added to / removed from the name hash
    
    when whole item hierarchies are added or removed, like when a layer
    group goes to the undo stack and back.

 app/core/gimpitemtree.c |   31 +++++++++++++++++++++++++++++++
 1 files changed, 31 insertions(+), 0 deletions(-)
---
diff --git a/app/core/gimpitemtree.c b/app/core/gimpitemtree.c
index 26eb2ac..388a098 100644
--- a/app/core/gimpitemtree.c
+++ b/app/core/gimpitemtree.c
@@ -396,6 +396,7 @@ gimp_item_tree_add_item (GimpItemTree *tree,
 {
   GimpItemTreePrivate *private;
   GimpContainer       *container;
+  GimpContainer       *children;
 
   g_return_if_fail (GIMP_IS_ITEM_TREE (tree));
 
@@ -414,6 +415,20 @@ gimp_item_tree_add_item (GimpItemTree *tree,
 
   gimp_item_tree_uniquefy_name (tree, item, NULL);
 
+  children = gimp_viewable_get_children (GIMP_VIEWABLE (item));
+
+  if (children)
+    {
+      GList *list = gimp_item_stack_get_item_list (GIMP_ITEM_STACK (children));
+
+      while (list)
+        {
+          gimp_item_tree_uniquefy_name (tree, list->data, NULL);
+
+          list = g_list_remove (list, list->data);
+        }
+    }
+
   if (parent)
     container = gimp_viewable_get_children (GIMP_VIEWABLE (parent));
   else
@@ -434,6 +449,7 @@ gimp_item_tree_remove_item (GimpItemTree *tree,
   GimpItemTreePrivate *private;
   GimpItem            *parent;
   GimpContainer       *container;
+  GimpContainer       *children;
   gint                 index;
 
   g_return_val_if_fail (GIMP_IS_ITEM_TREE (tree), NULL);
@@ -454,6 +470,21 @@ gimp_item_tree_remove_item (GimpItemTree *tree,
   g_hash_table_remove (private->name_hash,
                        gimp_object_get_name (item));
 
+  children = gimp_viewable_get_children (GIMP_VIEWABLE (item));
+
+  if (children)
+    {
+      GList *list = gimp_item_stack_get_item_list (GIMP_ITEM_STACK (children));
+
+      while (list)
+        {
+          g_hash_table_remove (private->name_hash,
+                               gimp_object_get_name (list->data));
+
+          list = g_list_remove (list, list->data);
+        }
+    }
+
   gimp_container_remove (container, GIMP_OBJECT (item));
 
   if (parent)