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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef _SDR_OBJECTUSER_HXX
      21             : #define _SDR_OBJECTUSER_HXX
      22             : 
      23             : #include <vector>
      24             : 
      25             : ////////////////////////////////////////////////////////////////////////////////////////////////////
      26             : // predeclarations
      27             : class SdrObject;
      28             : 
      29             : ////////////////////////////////////////////////////////////////////////////////////////////////////
      30             : // To make things more safe, allow users of an object to register at it. The users need to be derived
      31             : // from sdr::ObjectUser to get a call. The users do not need to call RemoveObjectUser() at the page
      32             : // when they get called from ObjectInDestruction().
      33             : 
      34             : namespace sdr
      35             : {
      36       55334 :     class ObjectUser
      37             :     {
      38             :     public:
      39             :         // this method is called form the destructor of the referenced page.
      40             :         // do all necessary action to forget the page. It is not necessary to call
      41             :         // RemovePageUser(), that is done form the destructor.
      42             :         virtual void ObjectInDestruction(const SdrObject& rObject) = 0;
      43             : 
      44             :     protected:
      45       55303 :         ~ObjectUser() {}
      46             :     };
      47             : 
      48             :     // typedef for ObjectUserVector
      49             :     typedef ::std::vector< ObjectUser* > ObjectUserVector;
      50             : } // end of namespace sdr
      51             : 
      52             : ////////////////////////////////////////////////////////////////////////////////////////////////////
      53             : 
      54             : #endif //_SDR_OBJECTUSER_HXX
      55             : 
      56             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */