1*3334a7e6SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*3334a7e6SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*3334a7e6SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*3334a7e6SAndrew Rist * distributed with this work for additional information 6*3334a7e6SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*3334a7e6SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*3334a7e6SAndrew Rist * "License"); you may not use this file except in compliance 9*3334a7e6SAndrew Rist * with the License. You may obtain a copy of the License at 10cdf0e10cSrcweir * 11*3334a7e6SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12cdf0e10cSrcweir * 13*3334a7e6SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*3334a7e6SAndrew Rist * software distributed under the License is distributed on an 15*3334a7e6SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*3334a7e6SAndrew Rist * KIND, either express or implied. See the License for the 17*3334a7e6SAndrew Rist * specific language governing permissions and limitations 18*3334a7e6SAndrew Rist * under the License. 19cdf0e10cSrcweir * 20*3334a7e6SAndrew Rist *************************************************************/ 21*3334a7e6SAndrew Rist 22*3334a7e6SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef _SDR_OBJECTUSER_HXX 25cdf0e10cSrcweir #define _SDR_OBJECTUSER_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include <vector> 28cdf0e10cSrcweir 29cdf0e10cSrcweir //////////////////////////////////////////////////////////////////////////////////////////////////// 30cdf0e10cSrcweir // predeclarations 31cdf0e10cSrcweir class SdrObject; 32cdf0e10cSrcweir 33cdf0e10cSrcweir //////////////////////////////////////////////////////////////////////////////////////////////////// 34cdf0e10cSrcweir // To make things more safe, allow users of the page to register at it. The users need to be derived 35cdf0e10cSrcweir // from sdr::PageUser to get a call. The users do not need to call RemovePageUser() at the page 36cdf0e10cSrcweir // when they get called from PageInDestruction(). 37cdf0e10cSrcweir 38cdf0e10cSrcweir namespace sdr 39cdf0e10cSrcweir { 40cdf0e10cSrcweir class ObjectUser 41cdf0e10cSrcweir { 42cdf0e10cSrcweir public: 43cdf0e10cSrcweir // this method is called form the destructor of the referenced page. 44cdf0e10cSrcweir // do all necessary action to forget the page. It is not necessary to call 45cdf0e10cSrcweir // RemovePageUser(), that is done form the destructor. 46cdf0e10cSrcweir virtual void ObjectInDestruction(const SdrObject& rObject) = 0; 47cdf0e10cSrcweir }; 48cdf0e10cSrcweir 49cdf0e10cSrcweir // typedef for ObjectUserVector 50cdf0e10cSrcweir typedef ::std::vector< ObjectUser* > ObjectUserVector; 51cdf0e10cSrcweir } // end of namespace sdr 52cdf0e10cSrcweir 53cdf0e10cSrcweir //////////////////////////////////////////////////////////////////////////////////////////////////// 54cdf0e10cSrcweir 55cdf0e10cSrcweir #endif //_SDR_OBJECTUSER_HXX 56cdf0e10cSrcweir // eof 57