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 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_svl.hxx" 26 // INCLUDE --------------------------------------------------------------- 27 28 #include <svl/whiter.hxx> 29 #include <svl/itemset.hxx> 30 31 DBG_NAME(SfxWhichIter) 32 33 // ----------------------------------------------------------------------- 34 35 SfxWhichIter::SfxWhichIter( const SfxItemSet& rSet, sal_uInt16 nFromWh, sal_uInt16 nToWh ): 36 pRanges(rSet.GetRanges()), 37 pStart(rSet.GetRanges()), 38 nOfst(0), nFrom(nFromWh), nTo(nToWh) 39 { 40 DBG_CTOR(SfxWhichIter, 0); 41 if ( nFrom > 0 ) 42 FirstWhich(); 43 } 44 45 // ----------------------------------------------------------------------- 46 47 SfxWhichIter::~SfxWhichIter() 48 { 49 DBG_DTOR(SfxWhichIter, 0); 50 } 51 52 // ----------------------------------------------------------------------- 53 54 sal_uInt16 SfxWhichIter::NextWhich() 55 { 56 DBG_CHKTHIS(SfxWhichIter, 0); 57 while ( 0 != *pRanges ) 58 { 59 const sal_uInt16 nLastWhich = *pRanges + nOfst; 60 ++nOfst; 61 if (*(pRanges+1) == nLastWhich) 62 { 63 pRanges += 2; 64 nOfst = 0; 65 } 66 sal_uInt16 nWhich = *pRanges + nOfst; 67 if ( 0 == nWhich || ( nWhich >= nFrom && nWhich <= nTo ) ) 68 return nWhich; 69 } 70 return 0; 71 } 72 73 // ----------------------------------------------------------------------- 74 75 sal_uInt16 SfxWhichIter::PrevWhich() 76 { 77 DBG_CHKTHIS(SfxWhichIter, 0); 78 while ( pRanges != pStart || 0 != nOfst ) 79 { 80 if(nOfst) 81 --nOfst; 82 else { 83 pRanges -= 2; 84 nOfst = *(pRanges+1) - (*pRanges); 85 } 86 sal_uInt16 nWhich = *pRanges + nOfst; 87 if ( nWhich >= nFrom && nWhich <= nTo ) 88 return nWhich; 89 } 90 return 0; 91 } 92 93 // ----------------------------------------------------------------------- 94 95 sal_uInt16 SfxWhichIter::FirstWhich() 96 { 97 DBG_CHKTHIS(SfxWhichIter, 0); 98 pRanges = pStart; 99 nOfst = 0; 100 if ( *pRanges >= nFrom && *pRanges <= nTo ) 101 return *pRanges; 102 return NextWhich(); 103 } 104 105 // ----------------------------------------------------------------------- 106 107 sal_uInt16 SfxWhichIter::LastWhich() 108 { 109 DBG_CHKTHIS(SfxWhichIter, 0); 110 while(*pRanges) 111 ++pRanges; 112 nOfst = 0; 113 sal_uInt16 nWhich = *(pRanges-1); 114 if ( nWhich >= nFrom && nWhich <= nTo ) 115 return nWhich; 116 return PrevWhich(); 117 } 118 119