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Diffstat (limited to 'lotuswordpro/source/filter/lwpobjhdr.cxx')
| -rw-r--r-- | lotuswordpro/source/filter/lwpobjhdr.cxx | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/lotuswordpro/source/filter/lwpobjhdr.cxx b/lotuswordpro/source/filter/lwpobjhdr.cxx new file mode 100644 index 000000000000..d0fdb4a59839 --- /dev/null +++ b/lotuswordpro/source/filter/lwpobjhdr.cxx @@ -0,0 +1,198 @@ +/************************************************************************* + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (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.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: IBM Corporation + * + * Copyright: 2008 by IBM Corporation + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ +/************************************************************************* + * @file + * For LWP filter architecture prototype + ************************************************************************/ +/************************************************************************* + * Change History + Jan 2005 Created + ************************************************************************/ + +#include "lwpobjhdr.hxx" +#include "lwpdefs.hxx" +#include "lwpfilehdr.hxx" + +LwpObjectHeader::LwpObjectHeader() + : m_nTag(0), m_ID(), m_nSize(0), m_bCompressed(sal_False) + // m_nHeaderSize(0), m_nVersionID(0), m_nRefCount(0), m_nFlagBits(0), + //m_nNextVersionOffset(0), m_nNextVersionID(0), +{}; +/** + * @descr read header from stream + */ +void LwpObjectHeader::Read(LwpSvStream &rStrm) +{ + + sal_uInt8 nFlagBits = 0; + sal_uInt32 nVersionID = 0; + sal_uInt32 nRefCount = 0; + sal_uInt32 nNextVersionOffset = 0; + sal_uInt32 nNextVersionID = 0; + sal_uInt32 nHeaderSize = 0; + + if ( LwpFileHeader::m_nFileRevision < 0x000B) + { + rStrm.Read(&m_nTag, sizeof(m_nTag)); + m_ID.Read(&rStrm); + rStrm.Read(&nVersionID, sizeof(nVersionID)); + rStrm.Read(&nRefCount, sizeof(nRefCount)); + rStrm.Read(&nNextVersionOffset, sizeof(nNextVersionOffset)); + + nHeaderSize = sizeof(m_nTag) + m_ID.DiskSize() + + sizeof(nVersionID) + + sizeof(nRefCount) + + sizeof(nNextVersionOffset) + + sizeof(m_nSize); + + if ((m_nTag == TAG_AMI) || ( LwpFileHeader::m_nFileRevision < 0x0006)) + { + rStrm.Read(&nNextVersionID, sizeof(nNextVersionID)); + nHeaderSize += sizeof(nNextVersionID); + } + rStrm.Read(&m_nSize, sizeof(m_nSize)); + } + else + { + sal_uInt16 VOType = 0; + rStrm.Read(&VOType, sizeof(VOType)); + rStrm.Read(&nFlagBits, sizeof(nFlagBits)); + + m_nTag = static_cast<sal_uInt32>(VOType); + m_ID.ReadIndexed(&rStrm); + nHeaderSize = sizeof(VOType) + sizeof(nFlagBits) + m_ID.DiskSizeIndexed(); + + sal_uInt8 tmpByte; + sal_uInt16 tmpShort; + switch (nFlagBits & VERSION_BITS) + { + case ONE_BYTE_VERSION: + rStrm.Read(&tmpByte, sizeof(tmpByte)); + nVersionID = static_cast<sal_uInt32>( tmpByte ); + nHeaderSize++; + break; + + case TWO_BYTE_VERSION: + rStrm.Read(&tmpShort, sizeof(tmpShort)); + nVersionID = static_cast<sal_uInt32>( tmpShort ); + nHeaderSize += 2; + break; + + case FOUR_BYTE_VERSION: + rStrm.Read(&nVersionID, sizeof(nVersionID)); + nHeaderSize += 4; + break; + case DEFAULT_VERSION: //fall through + default: + nVersionID = 2; + break; // nothing + } + + switch (nFlagBits & REFCOUNT_BITS) + { + case ONE_BYTE_REFCOUNT: + rStrm.Read(&tmpByte, sizeof(tmpByte)); + nRefCount = static_cast<sal_uInt32>( tmpByte ); + nHeaderSize++; + break; + + case TWO_BYTE_REFCOUNT: + rStrm.Read(&tmpShort, sizeof(tmpShort)); + nRefCount = static_cast<sal_uInt32>( tmpShort ); + nHeaderSize += 2; + break; + + case FOUR_BYTE_REFCOUNT: //through + default: + rStrm.Read(&nRefCount, sizeof(nRefCount)); + nHeaderSize += 4; + break; + } + + if (nFlagBits & HAS_PREVOFFSET) + { + rStrm.Read(&nNextVersionOffset, sizeof(nNextVersionOffset)); + nHeaderSize += 4; + } + else + nNextVersionOffset = BAD_OFFSET; + + switch (nFlagBits & SIZE_BITS) + { + case ONE_BYTE_SIZE: + rStrm.Read(&tmpByte, sizeof(tmpByte)); + m_nSize = static_cast<sal_uInt32>( tmpByte ); + nHeaderSize++; + break; + + case TWO_BYTE_SIZE: + rStrm.Read(&tmpShort, sizeof(tmpShort)); + m_nSize = static_cast<sal_uInt32>(tmpShort); + nHeaderSize += 2; + break; + + case FOUR_BYTE_SIZE: //go through + default: + rStrm.Read(&m_nSize, sizeof(m_nSize)); + nHeaderSize += 4; + break; + } + + if (nFlagBits & DATA_COMPRESSED) + { + m_bCompressed = sal_True; + } + } +} |