1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 /* 19 This PVA_FF_Parentable Class is the base class for all other classes here - including 20 both Atoms and Descriptors. This allows the maintenance of the tree structure 21 where every element has a parent - and that parent has three methods, getParent(), 22 setParent(), and recomputeSize(). This allows the classes to recompute the size 23 of their parent class when a child class is changed or added to. 24 */ 25 26 27 #ifndef __Parentable_H__ 28 #define __Parentable_H__ 29 30 31 class PVA_FF_Parentable 32 { 33 34 public: setParent(PVA_FF_Parentable * parent)35 void setParent(PVA_FF_Parentable *parent) 36 { 37 _pparent = parent; 38 } getParent()39 PVA_FF_Parentable *getParent() 40 { 41 return _pparent; 42 } 43 44 virtual void recomputeSize() = 0; // Must be overridden by all other concrete classes ~PVA_FF_Parentable()45 virtual ~PVA_FF_Parentable() {} 46 protected: 47 PVA_FF_Parentable *_pparent; 48 49 50 }; 51 52 53 54 #endif 55 56