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diff --git a/kig/misc/object_hierarchy.h b/kig/misc/object_hierarchy.h
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+++ b/kig/misc/object_hierarchy.h
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+// Copyright (C)  2003  Dominique Devriese <devriese@kde.org>
+
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+// 02110-1301, USA.
+
+#ifndef KIG_MISC_OBJECT_HIERARCHY_H
+#define KIG_MISC_OBJECT_HIERARCHY_H
+
+#include "../objects/common.h"
+
+#include <map>
+#include <vector>
+#include <string>
+
+class ObjectImpType;
+class ArgsParser;
+
+class ObjectHierarchy
+{
+public:
+  class Node;
+private:
+  std::vector<Node*> mnodes;
+  uint mnumberofargs;
+  uint mnumberofresults;
+  std::vector<const ObjectImpType*> margrequirements;
+  std::vector<std::string> musetexts;
+  std::vector<std::string> mselectstatements;
+
+  // these two are really part of the constructor...
+  int visit( const ObjectCalcer* o, std::map<const ObjectCalcer*, int>&,
+             bool needed, bool neededatend = false);
+  int storeObject( const ObjectCalcer*, const std::vector<ObjectCalcer*>& po, std::vector<int>& pl,
+                   std::map<const ObjectCalcer*, int>& seenmap );
+
+  friend bool operator==( const ObjectHierarchy& lhs, const ObjectHierarchy& rhs );
+
+  void init( const std::vector<ObjectCalcer*>& from, const std::vector<ObjectCalcer*>& to );
+
+  /**
+   * this constructor is private since it should be used only by the static
+   * constructor buildSafeObjectHierarchy
+   *
+   * \see ObjectHierarchy::buildSafeObjectHierarchy
+   */
+  ObjectHierarchy();
+
+public:
+  ObjectHierarchy( const ObjectCalcer* from, const ObjectCalcer* to );
+  ObjectHierarchy( const std::vector<ObjectCalcer*>& from, const ObjectCalcer* to );
+  ObjectHierarchy( const std::vector<ObjectCalcer*>& from, const std::vector<ObjectCalcer*>& to );
+  ObjectHierarchy( const ObjectHierarchy& h );
+  ~ObjectHierarchy();
+
+  /**
+   * this creates a new ObjectHierarchy, that takes a.size() less
+   * arguments, but uses copies of the ObjectImp's in \p a instead..
+   */
+  ObjectHierarchy withFixedArgs( const Args& a ) const;
+
+  std::vector<ObjectImp*> calc( const Args& a, const KigDocument& doc ) const;
+
+  /**
+   * saves the ObjectHierarchy data in children xml tags of \p parent ..
+   */
+  void serialize( QDomElement& parent, QDomDocument& doc ) const;
+  /**
+   * Deserialize the ObjectHierarchy data from the xml element \p parent ..
+   * Since this operation can fail for some reasons, we provide it as a
+   * static to return 0 in case of error.
+   */
+  static ObjectHierarchy* buildSafeObjectHierarchy( const QDomElement& parent, QString& error );
+//  ObjectHierarchy( const QDomElement& parent );
+
+  /**
+   * build a set of objects that interdepend according to this
+   * ObjectHierarchy..  Only the result objects are returned.  Helper
+   * objects that connect the given objects with the returned objects,
+   * can only be found by following the returned objects' parents()
+   * methods..
+   */
+  std::vector<ObjectCalcer*> buildObjects( const std::vector<ObjectCalcer*>& os, const KigDocument& ) const;
+
+  ArgsParser argParser() const;
+
+  uint numberOfArgs() const { return mnumberofargs; }
+  uint numberOfResults() const { return mnumberofresults; }
+
+  const ObjectImpType* idOfLastResult() const;
+
+  bool resultDoesNotDependOnGiven() const;
+  bool allGivenObjectsUsed() const;
+
+  ObjectHierarchy transformFinalObject( const Transformation& t ) const;
+};
+
+bool operator==( const ObjectHierarchy& lhs, const ObjectHierarchy& rhs );
+
+#endif