From 5f46061830258d929901acfe257709cbc37986de Mon Sep 17 00:00:00 2001
From: Michael Natterer <mitch@gimp.org>
Date: Sun, 14 Feb 2010 13:55:45 +0100
Subject: [PATCH] app: add gimp_item_peek_node() and use it

so we can avoid peeking into the GimpItem struct if we want to get to
the item's node without implicitly creating it if it doesn't already
exist.
---
 app/core/gimpdrawable.c | 9 ++++++---
 app/core/gimpitem.c     | 8 ++++++++
 app/core/gimpitem.h     | 1 +
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/app/core/gimpdrawable.c b/app/core/gimpdrawable.c
index 090a9a296e..5818c5bccf 100644
--- a/app/core/gimpdrawable.c
+++ b/app/core/gimpdrawable.c
@@ -355,17 +355,20 @@ static void
 gimp_drawable_visibility_changed (GimpItem *item)
 {
   GimpDrawable *drawable = GIMP_DRAWABLE (item);
+  GeglNode     *item_node;
 
   /*  don't use gimp_item_get_node() because that would create
    *  the node.
    */
-  if (item->node)
+  item_node = gimp_item_peek_node (item);
+
+  if (item_node)
     {
       GeglNode *input;
       GeglNode *output;
 
-      input  = gegl_node_get_input_proxy  (item->node, "input");
-      output = gegl_node_get_output_proxy (item->node, "output");
+      input  = gegl_node_get_input_proxy  (item_node, "input");
+      output = gegl_node_get_output_proxy (item_node, "output");
 
       if (gimp_item_get_visible (item) &&
           ! (GIMP_IS_LAYER (item) &&
diff --git a/app/core/gimpitem.c b/app/core/gimpitem.c
index 0b7501649c..de679cb2d4 100644
--- a/app/core/gimpitem.c
+++ b/app/core/gimpitem.c
@@ -1421,6 +1421,14 @@ gimp_item_get_node (GimpItem *item)
   return GIMP_ITEM_GET_CLASS (item)->get_node (item);
 }
 
+GeglNode *
+gimp_item_peek_node (GimpItem *item)
+{
+  g_return_val_if_fail (GIMP_IS_ITEM (item), NULL);
+
+  return item->node;
+}
+
 GeglNode *
 gimp_item_get_offset_node (GimpItem *item)
 {
diff --git a/app/core/gimpitem.h b/app/core/gimpitem.h
index 966aa6568d..6b01b8704c 100644
--- a/app/core/gimpitem.h
+++ b/app/core/gimpitem.h
@@ -247,6 +247,7 @@ gboolean        gimp_item_stroke             (GimpItem           *item,
                                               GError            **error);
 
 GeglNode      * gimp_item_get_node           (GimpItem           *item);
+GeglNode      * gimp_item_peek_node          (GimpItem           *item);
 GeglNode      * gimp_item_get_offset_node    (GimpItem           *item);