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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include <svl/svarray.hxx>
#include <string.h> // memmove()
SvPtrarr::SvPtrarr( sal_uInt16 nInit )
: pData (0),
nFree (nInit),
nA (0)
{
if( nInit )
{
pData = (VoidPtr*)(rtl_allocateMemory(sizeof(VoidPtr) * nInit));
OSL_ENSURE( pData, "CTOR, allocate");
}
}
void SvPtrarr::_resize (size_t n)
{
sal_uInt16 nL = ((n < USHRT_MAX) ? sal_uInt16(n) : USHRT_MAX);
VoidPtr* pE = (VoidPtr*)(rtl_reallocateMemory (pData, sizeof(VoidPtr) * nL));
if ((pE != 0) || (nL == 0))
{
pData = pE;
nFree = nL - nA;
}
}
void SvPtrarr::Insert( const VoidPtr& aE, sal_uInt16 nP )
{
OSL_ENSURE(nP <= nA && nA < USHRT_MAX, "Ins 1");
if (nFree < 1)
_resize (nA + ((nA > 1) ? nA : 1));
if( pData && nP < nA )
memmove( pData+nP+1, pData+nP, (nA-nP) * sizeof( VoidPtr ));
*(pData+nP) = (VoidPtr&)aE;
++nA; --nFree;
}
void SvPtrarr::Insert( const VoidPtr* pE, sal_uInt16 nL, sal_uInt16 nP )
{
OSL_ENSURE(nP<=nA && ((long)nA+nL)<USHRT_MAX,"Ins n");
if (nFree < nL)
_resize (nA + ((nA > nL) ? nA : nL));
if( pData && nP < nA )
memmove( pData+nP+nL, pData+nP, (nA-nP) * sizeof( VoidPtr ));
if( pE )
memcpy( pData+nP, pE, nL * sizeof( VoidPtr ));
nA = nA + nL; nFree = nFree - nL;
}
void SvPtrarr::Insert( const SvPtrarr * pI, sal_uInt16 nP,
sal_uInt16 nS, sal_uInt16 nE )
{
if( USHRT_MAX == nE )
nE = pI->nA;
if( nS < nE )
Insert( (const VoidPtr*)pI->pData+nS, (sal_uInt16)nE-nS, nP );
}
void SvPtrarr::Remove( sal_uInt16 nP, sal_uInt16 nL )
{
if( !nL )
return;
OSL_ENSURE( nP < nA && nP + nL <= nA,"Del");
if( pData && nP+1 < nA )
memmove( pData+nP, pData+nP+nL, (nA-nP-nL) * sizeof( VoidPtr ));
nA = nA - nL; nFree = nFree + nL;
if (nFree > nA)
_resize (nA);
}
sal_uInt16 SvPtrarr::GetPos( const VoidPtr& aElement ) const
{
sal_uInt16 n;
for( n=0; n < nA && *(GetData()+n) != aElement; ) n++;
return ( n >= nA ? USHRT_MAX : n );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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