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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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11 * http://www.apache.org/licenses/LICENSE-2.0
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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
DBG_NAME(SfxWhichIter)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
~SfxWhichIter()47 SfxWhichIter::~SfxWhichIter()
48 {
49 DBG_DTOR(SfxWhichIter, 0);
50 }
51
52 // -----------------------------------------------------------------------
53
NextWhich()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
PrevWhich()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
FirstWhich()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
LastWhich()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