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/**************************************************************
*
* 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 ---------------------------------------------------------------
#include <svl/whiter.hxx>
#include <svl/itemset.hxx>
DBG_NAME(SfxWhichIter)
// -----------------------------------------------------------------------
SfxWhichIter::SfxWhichIter( const SfxItemSet& rSet, sal_uInt16 nFromWh, sal_uInt16 nToWh ):
pRanges(rSet.GetRanges()),
pStart(rSet.GetRanges()),
nOfst(0), nFrom(nFromWh), nTo(nToWh)
{
DBG_CTOR(SfxWhichIter, 0);
if ( nFrom > 0 )
FirstWhich();
}
// -----------------------------------------------------------------------
SfxWhichIter::~SfxWhichIter()
{
DBG_DTOR(SfxWhichIter, 0);
}
// -----------------------------------------------------------------------
sal_uInt16 SfxWhichIter::NextWhich()
{
DBG_CHKTHIS(SfxWhichIter, 0);
while ( 0 != *pRanges )
{
const sal_uInt16 nLastWhich = *pRanges + nOfst;
++nOfst;
if (*(pRanges+1) == nLastWhich)
{
pRanges += 2;
nOfst = 0;
}
sal_uInt16 nWhich = *pRanges + nOfst;
if ( 0 == nWhich || ( nWhich >= nFrom && nWhich <= nTo ) )
return nWhich;
}
return 0;
}
// -----------------------------------------------------------------------
sal_uInt16 SfxWhichIter::PrevWhich()
{
DBG_CHKTHIS(SfxWhichIter, 0);
while ( pRanges != pStart || 0 != nOfst )
{
if(nOfst)
--nOfst;
else {
pRanges -= 2;
nOfst = *(pRanges+1) - (*pRanges);
}
sal_uInt16 nWhich = *pRanges + nOfst;
if ( nWhich >= nFrom && nWhich <= nTo )
return nWhich;
}
return 0;
}
// -----------------------------------------------------------------------
sal_uInt16 SfxWhichIter::FirstWhich()
{
DBG_CHKTHIS(SfxWhichIter, 0);
pRanges = pStart;
nOfst = 0;
if ( *pRanges >= nFrom && *pRanges <= nTo )
return *pRanges;
return NextWhich();
}
// -----------------------------------------------------------------------
sal_uInt16 SfxWhichIter::LastWhich()
{
DBG_CHKTHIS(SfxWhichIter, 0);
while(*pRanges)
++pRanges;
nOfst = 0;
sal_uInt16 nWhich = *(pRanges-1);
if ( nWhich >= nFrom && nWhich <= nTo )
return nWhich;
return PrevWhich();
}