1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 #ifndef _SVT_LISTENERITER_HXX 24 #define _SVT_LISTENERITER_HXX 25 26 #include "svl/svldllapi.h" 27 #include <tools/rtti.hxx> 28 29 class SvtListener; 30 class SvtListenerBase; 31 class SvtBroadcaster; 32 33 //------------------------------------------------------------------------- 34 35 class SVL_DLLPUBLIC SvtListenerIter 36 { 37 friend class SvtListenerBase; 38 39 SvtBroadcaster& rRoot; 40 SvtListenerBase *pAkt, *pDelNext; 41 42 // for the update of all iterator's, if a listener is added or removed 43 // at the same time. 44 static SvtListenerIter *pListenerIters; 45 SvtListenerIter *pNxtIter; 46 TypeId aSrchId; // fuer First/Next - suche diesen Type 47 48 SVL_DLLPRIVATE static void RemoveListener( SvtListenerBase& rDel, 49 SvtListenerBase* pNext ); 50 51 public: 52 SvtListenerIter( SvtBroadcaster& ); 53 ~SvtListenerIter(); 54 GetBroadcaster() const55 const SvtBroadcaster& GetBroadcaster() const { return rRoot; } GetBroadcaster()56 SvtBroadcaster& GetBroadcaster() { return rRoot; } 57 58 SvtListener* GoNext(); // to the next 59 SvtListener* GoPrev(); // to the previous 60 61 SvtListener* GoStart(); // to the start of the list 62 SvtListener* GoEnd(); // to the end of the list 63 64 SvtListener* GoRoot(); // to the root 65 SvtListener* GetCurr() const; // returns the current 66 IsChanged() const67 int IsChanged() const { return pDelNext != pAkt; } 68 69 SvtListener* First( TypeId nType ); 70 SvtListener* Next(); 71 }; 72 73 74 #endif 75 76