[gimp] Some group layer fixes

[Michael Natterer <mitch src gnome org>]

commit ea7c07647b7f01ebbee13ffac4f3093f27e7c769
Author: Michael Natterer <mitch gimp org>
Date:   Tue Aug 4 00:14:53 2009 +0200

    Some group layer fixes
    
    - call new group layers "Group Layer" by default.
    - when duplicating, don't forget to set the duplicated childrens'
      parent viewable.

 app/core/gimpgrouplayer.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/app/core/gimpgrouplayer.c b/app/core/gimpgrouplayer.c
index 54cd739..c1c432e 100644
--- a/app/core/gimpgrouplayer.c
+++ b/app/core/gimpgrouplayer.c
@@ -143,6 +143,9 @@ gimp_group_layer_duplicate (GimpItem *item,
 
           new_child = gimp_item_duplicate (child, G_TYPE_FROM_INSTANCE (child));
 
+          gimp_viewable_set_parent (GIMP_VIEWABLE (new_child),
+                                    GIMP_VIEWABLE (new_layer));
+
           gimp_container_insert (new_layer->children,
                                  GIMP_OBJECT (new_child),
                                  position);
@@ -165,7 +168,7 @@ gimp_group_layer_new (GimpImage *image)
                            image,
                            0, 0, 1, 1,
                            gimp_image_base_type_with_alpha (image),
-                           NULL);
+                           _("Group Layer"));
 
   return GIMP_LAYER (layer);
 }