From 25bc487763265af835a692ccee763aa7193d1c5c Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 22 Apr 2010 13:07:49 +0000
Subject: [PATCH] From John Ivar Haugland, "I have added the serializer for
 UserData in osg::Object. See the attached modified file:
 src\osgWrappers\serializers\osg\Object.cpp"

---
 src/osgWrappers/serializers/osg/Object.cpp | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/src/osgWrappers/serializers/osg/Object.cpp b/src/osgWrappers/serializers/osg/Object.cpp
index 3af02866f..273222922 100644
--- a/src/osgWrappers/serializers/osg/Object.cpp
+++ b/src/osgWrappers/serializers/osg/Object.cpp
@@ -3,6 +3,29 @@
 #include <osgDB/InputStream>
 #include <osgDB/OutputStream>
 
+static bool checkUserData( const osg::Object& obj )
+{
+    return (obj.getUserData() && dynamic_cast<const osg::Object*>(obj.getUserData()));
+}
+
+static bool readUserData( osgDB::InputStream& is, osg::Object& obj )
+{
+    is >> osgDB::BEGIN_BRACKET;
+    osg::Object* object = is.readObject(); 
+    if(object) obj.setUserData(object); 
+    is >> osgDB::END_BRACKET;
+    return true;
+}
+
+static bool writeUserData( osgDB::OutputStream& os, const osg::Object& obj )
+{
+    os << osgDB::BEGIN_BRACKET << std::endl;
+    os.writeObject(dynamic_cast<const osg::Object*>(obj.getUserData())); 
+    os << osgDB::END_BRACKET << std::endl;
+    return true;
+}
+
+
 REGISTER_OBJECT_WRAPPER( Object,
                          /*new osg::Object*/NULL,
                          osg::Object,
@@ -15,4 +38,6 @@ REGISTER_OBJECT_WRAPPER( Object,
         ADD_ENUM_VALUE( DYNAMIC );
         ADD_ENUM_VALUE( UNSPECIFIED );
     END_ENUM_SERIALIZER();  // _dataVariance
+
+    ADD_USER_SERIALIZER( UserData );  // _userData
 }