Have add new osg::CopyOp which replaces last nights osg::Cloner, the new

class now combines Cloner and DeepCopy into one class. Cloner and DeepCopy
will be removed in next commit.

Also have added osgcopy app to Demos which shows how the CopyOp have be
subclassed to create users own specific handling of copying.

Have fixed copy constructor problems in GeoSet which fix the deep copy
problem experienced yesterday.

src/osg/StateSet.cpp

@@ -23,11 +23,17 @@ StateSet::StateSet()
 
 StateSet::StateSet(const StateSet& rhs,const Cloner& cloner):Object(rhs,cloner)
 {
-    // shallow copy right now, we should go through each attribute and 
-    // use the cloner instead of attribute list copy.. on the TODO list.  Robert. Jan 2002.
-
     _modeList = rhs._modeList;
-    _attributeList = rhs._attributeList;
+
+    for(AttributeList::const_iterator itr=rhs._attributeList.begin();
+        itr!=rhs._attributeList.end();
+        ++itr)
+    {
+        StateAttribute::Type type = itr->first;
+        const RefAttributePair& rap = itr->second;
+        StateAttribute* attr = cloner(rap.first.get());
+        if (attr) _attributeList[type]=RefAttributePair(attr,rap.second);
+    }
     
     _renderingHint = rhs._renderingHint;