| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_svl.hxx" |
| #include <tools/debug.hxx> |
| |
| #include "listenerbase.hxx" |
| #include <svl/listeneriter.hxx> |
| #include <svl/broadcast.hxx> |
| #include <svl/listener.hxx> |
| |
| SvtListenerIter* SvtListenerIter::pListenerIters = 0; |
| |
| SvtListenerIter::SvtListenerIter( SvtBroadcaster& rBrdcst ) |
| : rRoot( rBrdcst ) |
| { |
| // hinten einketten! |
| pNxtIter = 0; |
| if( pListenerIters ) |
| { |
| SvtListenerIter* pTmp = pListenerIters; |
| while( pTmp->pNxtIter ) |
| pTmp = pTmp->pNxtIter; |
| pTmp->pNxtIter = this; |
| } |
| else |
| pListenerIters = this; |
| |
| pAkt = rRoot.pRoot; |
| pDelNext = pAkt; |
| } |
| |
| |
| |
| SvtListenerIter::~SvtListenerIter() |
| { |
| if( pListenerIters ) |
| { |
| if( pListenerIters == this ) |
| pListenerIters = pNxtIter; |
| else |
| { |
| SvtListenerIter* pTmp = pListenerIters; |
| while( pTmp->pNxtIter != this ) |
| if( 0 == ( pTmp = pTmp->pNxtIter ) ) |
| return ; |
| pTmp->pNxtIter = pNxtIter; |
| } |
| } |
| } |
| |
| void SvtListenerIter::RemoveListener( SvtListenerBase& rDel, |
| SvtListenerBase* pNext ) |
| { |
| // Update the ListenerIter |
| SvtListenerIter* pTmp = pListenerIters; |
| while( pTmp ) |
| { |
| if( pTmp->pAkt == &rDel || pTmp->pDelNext == &rDel ) |
| pTmp->pDelNext = pNext; |
| pTmp = pTmp->pNxtIter; |
| } |
| } |
| |
| SvtListener* SvtListenerIter::GoNext() |
| { |
| if( pDelNext == pAkt ) |
| { |
| pAkt = pAkt->GetRight(); |
| pDelNext = pAkt; |
| } |
| else |
| pAkt = pDelNext; |
| return pAkt ? pAkt->GetListener() : 0; |
| } |
| |
| |
| SvtListener* SvtListenerIter::GoPrev() |
| { |
| if( pDelNext == pAkt ) |
| pAkt = pAkt->GetLeft(); |
| else |
| pAkt = pDelNext->GetLeft(); |
| pDelNext = pAkt; |
| return pAkt ? pAkt->GetListener() : 0; |
| } |
| |
| |
| SvtListener* SvtListenerIter::GoStart() // zum Anfang des Baums |
| { |
| pAkt = rRoot.pRoot; |
| if( pAkt ) |
| while( pAkt->GetLeft() ) |
| pAkt = pAkt->GetLeft(); |
| pDelNext = pAkt; |
| return pAkt ? pAkt->GetListener() : 0; |
| } |
| |
| |
| SvtListener* SvtListenerIter::GoEnd() // zum End des Baums |
| { |
| pAkt = pDelNext; |
| if( !pAkt ) |
| pAkt = rRoot.pRoot; |
| if( pAkt ) |
| while( pAkt->GetRight() ) |
| pAkt = pAkt->GetRight(); |
| pDelNext = pAkt; |
| return pAkt ? pAkt->GetListener() : 0; |
| } |
| |
| |
| |
| SvtListener* SvtListenerIter::First( TypeId nType ) |
| { |
| aSrchId = nType; |
| GoStart(); |
| if( pAkt ) |
| do { |
| if( pAkt->GetListener()->IsA( aSrchId ) ) |
| break; |
| |
| if( pDelNext == pAkt ) |
| { |
| pAkt = pAkt->GetRight(); |
| pDelNext = pAkt; |
| } |
| else |
| pAkt = pDelNext; |
| |
| } while( pAkt ); |
| return pAkt ? pAkt->GetListener() : 0; |
| } |
| |
| |
| SvtListener* SvtListenerIter::Next() |
| { |
| do { |
| // erstmal zum naechsten |
| if( pDelNext == pAkt ) |
| { |
| pAkt = pAkt->GetRight(); |
| pDelNext = pAkt; |
| } |
| else |
| pAkt = pDelNext; |
| |
| if( pAkt && pAkt->GetListener()->IsA( aSrchId ) ) |
| break; |
| } while( pAkt ); |
| return pAkt ? pAkt->GetListener() : 0; |
| } |
| |
| |
| SvtListener* SvtListenerIter::GoRoot() // wieder ab Root anfangen |
| { |
| pDelNext = pAkt = rRoot.pRoot; |
| return pAkt ? pAkt->GetListener() : 0; |
| } |
| |
| SvtListener* SvtListenerIter::GetCurr() const // returns the current |
| { |
| return pDelNext ? pDelNext->GetListener() : 0; |
| } |
| |