1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_svl.hxx" 30 // INCLUDE --------------------------------------------------------------- 31 32 #include <svl/whiter.hxx> 33 #include <svl/itemset.hxx> 34 35 DBG_NAME(SfxWhichIter) 36 37 // ----------------------------------------------------------------------- 38 39 SfxWhichIter::SfxWhichIter( const SfxItemSet& rSet, sal_uInt16 nFromWh, sal_uInt16 nToWh ): 40 pRanges(rSet.GetRanges()), 41 pStart(rSet.GetRanges()), 42 nOfst(0), nFrom(nFromWh), nTo(nToWh) 43 { 44 DBG_CTOR(SfxWhichIter, 0); 45 if ( nFrom > 0 ) 46 FirstWhich(); 47 } 48 49 // ----------------------------------------------------------------------- 50 51 SfxWhichIter::~SfxWhichIter() 52 { 53 DBG_DTOR(SfxWhichIter, 0); 54 } 55 56 // ----------------------------------------------------------------------- 57 58 sal_uInt16 SfxWhichIter::NextWhich() 59 { 60 DBG_CHKTHIS(SfxWhichIter, 0); 61 while ( 0 != *pRanges ) 62 { 63 const sal_uInt16 nLastWhich = *pRanges + nOfst; 64 ++nOfst; 65 if (*(pRanges+1) == nLastWhich) 66 { 67 pRanges += 2; 68 nOfst = 0; 69 } 70 sal_uInt16 nWhich = *pRanges + nOfst; 71 if ( 0 == nWhich || ( nWhich >= nFrom && nWhich <= nTo ) ) 72 return nWhich; 73 } 74 return 0; 75 } 76 77 // ----------------------------------------------------------------------- 78 79 sal_uInt16 SfxWhichIter::PrevWhich() 80 { 81 DBG_CHKTHIS(SfxWhichIter, 0); 82 while ( pRanges != pStart || 0 != nOfst ) 83 { 84 if(nOfst) 85 --nOfst; 86 else { 87 pRanges -= 2; 88 nOfst = *(pRanges+1) - (*pRanges); 89 } 90 sal_uInt16 nWhich = *pRanges + nOfst; 91 if ( nWhich >= nFrom && nWhich <= nTo ) 92 return nWhich; 93 } 94 return 0; 95 } 96 97 // ----------------------------------------------------------------------- 98 99 sal_uInt16 SfxWhichIter::FirstWhich() 100 { 101 DBG_CHKTHIS(SfxWhichIter, 0); 102 pRanges = pStart; 103 nOfst = 0; 104 if ( *pRanges >= nFrom && *pRanges <= nTo ) 105 return *pRanges; 106 return NextWhich(); 107 } 108 109 // ----------------------------------------------------------------------- 110 111 sal_uInt16 SfxWhichIter::LastWhich() 112 { 113 DBG_CHKTHIS(SfxWhichIter, 0); 114 while(*pRanges) 115 ++pRanges; 116 nOfst = 0; 117 sal_uInt16 nWhich = *(pRanges-1); 118 if ( nWhich >= nFrom && nWhich <= nTo ) 119 return nWhich; 120 return PrevWhich(); 121 } 122 123