Remove wrongly exposed SetParent method.

include/plist/Node.h

@@ -33,9 +33,8 @@ public :
     virtual ~Node();
 
     virtual Node* Clone() = 0;
-    Node * GetParent();
-    void SetParent(Node* parent);
 
+    Node * GetParent();
     plist_type GetType();
     plist_t GetPlist();
 
@@ -44,7 +43,10 @@ protected:
     Node(plist_t node, Node* parent = NULL);
     Node(plist_type type, Node* parent = NULL);
     plist_t _node;
+
+private:
     Node* _parent;
+    friend class Structure;
 };
 
 };

include/plist/Structure.h

@@ -44,6 +44,7 @@ public :
 protected:
     Structure(Node* parent = NULL);
     Structure(plist_type type, Node* parent = NULL);
+    void UpdateNodeParent(Node* node);
 
 private:
     Structure(Structure& s);