Version 5.2.6.1, tag libreoffice-5.2.6.1
[LibreOffice.git] / lotuswordpro / source / filter / benval.cxx
blob6cffe1d9c41d684aacecec6e524e480c6794166a
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*************************************************************************
4 * The Contents of this file are made available subject to the terms of
5 * either of the following licenses
7 * - GNU Lesser General Public License Version 2.1
8 * - Sun Industry Standards Source License Version 1.1
10 * Sun Microsystems Inc., October, 2000
12 * GNU Lesser General Public License Version 2.1
13 * =============================================
14 * Copyright 2000 by Sun Microsystems, Inc.
15 * 901 San Antonio Road, Palo Alto, CA 94303, USA
17 * This library is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU Lesser General Public
19 * License version 2.1, as published by the Free Software Foundation.
21 * This library is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 * Lesser General Public License for more details.
26 * You should have received a copy of the GNU Lesser General Public
27 * License along with this library; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 * MA 02111-1307 USA
32 * Sun Industry Standards Source License Version 1.1
33 * =================================================
34 * The contents of this file are subject to the Sun Industry Standards
35 * Source License Version 1.1 (the "License"); You may not use this file
36 * except in compliance with the License. You may obtain a copy of the
37 * License at http://www.openoffice.org/license.html.
39 * Software provided under this License is provided on an "AS IS" basis,
40 * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
41 * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
42 * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
43 * See the License for the specific provisions governing your rights and
44 * obligations concerning the Software.
46 * The Initial Developer of the Original Code is: IBM Corporation
48 * Copyright: 2008 by IBM Corporation
50 * All Rights Reserved.
52 * Contributor(s): _______________________________________
55 ************************************************************************/
56 #include "first.hxx"
57 #include "assert.h"
58 namespace OpenStormBento
61 unsigned long
62 CBenValue::GetValueSize()
64 unsigned long Size = 0;
65 pCBenValueSegment pCurr = nullptr;
66 while ((pCurr = GetNextValueSegment(pCurr)) != nullptr)
67 Size += pCurr->GetSize();
68 return Size;
71 void
72 CBenValue::ReadValueData(void * pReadBuffer, unsigned long Offset,
73 unsigned long Amt, unsigned long * pAmtRead)
75 BenError Err;
76 unsigned long SegOffset = 0;
77 *pAmtRead = 0;
78 pCBenValueSegment pCurrSeg = nullptr;
79 pLtcBenContainer pContainer = GetContainer();
80 BenByte* pBuffer = static_cast<BenByte*>(pReadBuffer);
82 /// pReadBuffer -- pointer to buffer of read result, allocated outside this function
83 /// Offset -- read buffer's start offset address, relative value in the whole value stream
84 /// Amt -- read buffer's size
85 /// pAmtRead -- return the actual read size
87 /// SegOffset -- current segment's start address offset, relative value in the whole value stream
89 while ((pCurrSeg = GetNextValueSegment(pCurrSeg)) != nullptr)
91 if (Amt == 0) /// whole buffer is full now, so return
92 return;
94 if (SegOffset <= Offset && Offset < SegOffset + pCurrSeg->GetSize()) /// begin at current segment
96 unsigned long OffsetIntoSeg = Offset - SegOffset; /// relative value in this value segment stream
98 unsigned long AmtThisSeg = UtMin(Amt, pCurrSeg->GetSize() -
99 OffsetIntoSeg); /// size read in this segment, it's minimal value between Amt &
100 /// remain part from OffsetIntoSeg to the end of this segment
102 unsigned long AmtReadThisSeg; /// actual read size in this segment
103 if (pCurrSeg->IsImmediate())
105 UtHugeMemcpy(pBuffer, pCurrSeg->GetImmediateData() +
106 OffsetIntoSeg, AmtThisSeg);
107 AmtReadThisSeg = AmtThisSeg;
109 else
111 if ((Err = pContainer->SeekToPosition(pCurrSeg->GetPosition() +
112 OffsetIntoSeg)) != BenErr_OK)
113 return;
115 if ((Err = pContainer->Read(pBuffer, AmtThisSeg,
116 &AmtReadThisSeg)) != BenErr_OK)
117 return;
120 *pAmtRead += AmtReadThisSeg;
122 if (AmtThisSeg != AmtReadThisSeg)
123 return;
125 pBuffer += AmtReadThisSeg;
126 Offset += AmtReadThisSeg;
127 Amt -= AmtReadThisSeg;
130 SegOffset += pCurrSeg->GetSize();
134 }//end namespace OpenStormBento
136 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */