515 lines
15 KiB
C++
515 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <tools/stream.hxx>
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#include <tools/tenccvt.hxx>
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#include <osl/thread.h>
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#include <basic/sbx.hxx>
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#include "sb.hxx"
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#include <string.h>
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#include "image.hxx"
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#include <codegen.hxx>
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SbiImage::SbiImage()
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{
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pStringOff = NULL;
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pStrings = NULL;
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pCode = NULL;
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pLegacyPCode = NULL;
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nFlags = 0;
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nStrings = 0;
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nStringSize= 0;
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nCodeSize = 0;
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nLegacyCodeSize =
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nDimBase = 0;
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bInit =
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bError = false;
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bFirstInit = true;
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eCharSet = osl_getThreadTextEncoding();
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nStringIdx = 0;
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nStringOff = 0;
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}
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SbiImage::~SbiImage()
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{
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Clear();
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}
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void SbiImage::Clear()
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{
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delete[] pStringOff;
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delete[] pStrings;
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delete[] pCode;
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ReleaseLegacyBuffer();
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pStringOff = NULL;
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pStrings = NULL;
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pCode = NULL;
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nFlags = 0;
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nStrings = 0;
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nStringSize= 0;
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nLegacyCodeSize = 0;
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nCodeSize = 0;
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eCharSet = osl_getThreadTextEncoding();
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nDimBase = 0;
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bError = false;
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}
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/**************************************************************************
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*
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* Service-Routines for Load/Store
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*
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**************************************************************************/
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bool SbiGood( SvStream& r )
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{
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return !r.IsEof() && r.GetError() == SVSTREAM_OK;
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}
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// Open Record
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sal_uIntPtr SbiOpenRecord( SvStream& r, sal_uInt16 nSignature, sal_uInt16 nElem )
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{
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sal_Size nPos = r.Tell();
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r.WriteUInt16( nSignature ).WriteInt32( (sal_Int32) 0 ).WriteUInt16( nElem );
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return nPos;
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}
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// Close Record
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void SbiCloseRecord( SvStream& r, sal_Size nOff )
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{
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sal_Size nPos = r.Tell();
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r.Seek( nOff + 2 );
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r.WriteInt32( (sal_Int32) ( nPos - nOff - 8 ) );
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r.Seek( nPos );
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}
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/**************************************************************************
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*
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* Load/Store
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*
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**************************************************************************/
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bool SbiImage::Load( SvStream& r, sal_uInt32& nVersion )
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{
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sal_uInt16 nSign, nCount;
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sal_uInt32 nLen, nOff;
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Clear();
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// Read Master-Record
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r.ReadUInt16( nSign ).ReadUInt32( nLen ).ReadUInt16( nCount );
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sal_Size nLast = r.Tell() + nLen;
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sal_uInt32 nCharSet; // System charset
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sal_uInt32 lDimBase;
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sal_uInt16 nReserved1;
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sal_uInt32 nReserved2;
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sal_uInt32 nReserved3;
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bool bBadVer = false;
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if( nSign == B_MODULE )
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{
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r.ReadUInt32( nVersion ).ReadUInt32( nCharSet ).ReadUInt32( lDimBase )
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.ReadUInt16( nFlags ).ReadUInt16( nReserved1 ).ReadUInt32( nReserved2 ).ReadUInt32( nReserved3 );
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eCharSet = nCharSet;
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eCharSet = GetSOLoadTextEncoding( eCharSet );
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bBadVer = ( nVersion > B_CURVERSION );
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nDimBase = (sal_uInt16) lDimBase;
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}
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bool bLegacy = ( nVersion < B_EXT_IMG_VERSION );
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sal_Size nNext;
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while( ( nNext = r.Tell() ) < nLast )
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{
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r.ReadUInt16( nSign ).ReadUInt32( nLen ).ReadUInt16( nCount );
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nNext += nLen + 8;
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if( r.GetError() == SVSTREAM_OK )
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{
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switch( nSign )
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{
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case B_NAME:
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aName = r.ReadUniOrByteString(eCharSet);
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break;
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case B_COMMENT:
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aComment = r.ReadUniOrByteString(eCharSet );
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break;
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case B_SOURCE:
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{
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aOUSource = r.ReadUniOrByteString(eCharSet);
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break;
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}
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case B_EXTSOURCE:
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{
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for( sal_uInt16 j = 0 ; j < nCount ; j++ )
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{
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aOUSource += r.ReadUniOrByteString(eCharSet);
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}
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break;
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}
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case B_PCODE:
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if( bBadVer ) break;
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pCode = new char[ nLen ];
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nCodeSize = nLen;
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r.Read( pCode, nCodeSize );
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if ( bLegacy )
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{
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ReleaseLegacyBuffer(); // release any previously held buffer
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nLegacyCodeSize = (sal_uInt16) nCodeSize;
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pLegacyPCode = pCode;
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PCodeBuffConvertor< sal_uInt16, sal_uInt32 > aLegacyToNew( (sal_uInt8*)pLegacyPCode, nLegacyCodeSize );
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aLegacyToNew.convert();
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pCode = (char*)aLegacyToNew.GetBuffer();
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nCodeSize = aLegacyToNew.GetSize();
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// we don't release the legacy buffer
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// right now, thats because the module
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// needs it to fix up the method
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// nStart members. When that is done
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// the module can release the buffer
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// or it can wait until this routine
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// is called again or when this class // destructs all of which will trigger
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// release of the buffer.
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}
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break;
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case B_PUBLICS:
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case B_POOLDIR:
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case B_SYMPOOL:
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case B_LINERANGES:
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break;
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case B_STRINGPOOL:
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if( bBadVer ) break;
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MakeStrings( nCount );
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short i;
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for( i = 0; i < nStrings && SbiGood( r ); i++ )
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{
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r.ReadUInt32( nOff );
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pStringOff[ i ] = (sal_uInt16) nOff;
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}
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r.ReadUInt32( nLen );
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if( SbiGood( r ) )
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{
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delete [] pStrings;
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pStrings = new sal_Unicode[ nLen ];
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nStringSize = (sal_uInt16) nLen;
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char* pByteStrings = new char[ nLen ];
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r.Read( pByteStrings, nStringSize );
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for( short j = 0; j < nStrings; j++ )
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{
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sal_uInt16 nOff2 = (sal_uInt16) pStringOff[ j ];
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OUString aStr( pByteStrings + nOff2, strlen(pByteStrings + nOff2), eCharSet );
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memcpy( pStrings + nOff2, aStr.getStr(), (aStr.getLength() + 1) * sizeof( sal_Unicode ) );
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}
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delete[] pByteStrings;
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}
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break;
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case B_MODEND:
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goto done;
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default:
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break;
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}
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}
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else
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{
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break;
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}
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r.Seek( nNext );
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}
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done:
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r.Seek( nLast );
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if( !SbiGood( r ) )
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{
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bError = true;
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}
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return !bError;
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}
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bool SbiImage::Save( SvStream& r, sal_uInt32 nVer )
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{
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bool bLegacy = ( nVer < B_EXT_IMG_VERSION );
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// detect if old code exceeds legacy limits
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// if so, then disallow save
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if ( bLegacy && ExceedsLegacyLimits() )
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{
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SbiImage aEmptyImg;
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aEmptyImg.aName = aName;
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aEmptyImg.Save( r, B_LEGACYVERSION );
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return true;
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}
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// First of all the header
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sal_uIntPtr nStart = SbiOpenRecord( r, B_MODULE, 1 );
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sal_uIntPtr nPos;
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eCharSet = GetSOStoreTextEncoding( eCharSet );
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if ( bLegacy )
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{
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r.WriteInt32( (sal_Int32) B_LEGACYVERSION );
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}
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else
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{
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r.WriteInt32( (sal_Int32) B_CURVERSION );
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}
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r .WriteInt32( (sal_Int32) eCharSet )
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.WriteInt32( (sal_Int32) nDimBase )
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.WriteInt16( (sal_Int16) nFlags )
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.WriteInt16( (sal_Int16) 0 )
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.WriteInt32( (sal_Int32) 0 )
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.WriteInt32( (sal_Int32) 0 );
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// Name?
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if( !aName.isEmpty() && SbiGood( r ) )
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{
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nPos = SbiOpenRecord( r, B_NAME, 1 );
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r.WriteUniOrByteString( aName, eCharSet );
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SbiCloseRecord( r, nPos );
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}
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// Comment?
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if( !aComment.isEmpty() && SbiGood( r ) )
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{
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nPos = SbiOpenRecord( r, B_COMMENT, 1 );
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r.WriteUniOrByteString( aComment, eCharSet );
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SbiCloseRecord( r, nPos );
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}
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// Source?
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if( !aOUSource.isEmpty() && SbiGood( r ) )
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{
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nPos = SbiOpenRecord( r, B_SOURCE, 1 );
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r.WriteUniOrByteString( aOUSource, eCharSet );
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SbiCloseRecord( r, nPos );
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}
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// Binary data?
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if( pCode && SbiGood( r ) )
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{
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nPos = SbiOpenRecord( r, B_PCODE, 1 );
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if ( bLegacy )
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{
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ReleaseLegacyBuffer(); // release any previously held buffer
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PCodeBuffConvertor< sal_uInt32, sal_uInt16 > aNewToLegacy( (sal_uInt8*)pCode, nCodeSize );
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aNewToLegacy.convert();
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pLegacyPCode = (char*)aNewToLegacy.GetBuffer();
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nLegacyCodeSize = aNewToLegacy.GetSize();
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r.Write( pLegacyPCode, nLegacyCodeSize );
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}
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else
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{
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r.Write( pCode, nCodeSize );
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}
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SbiCloseRecord( r, nPos );
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}
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// String-Pool?
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if( nStrings )
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{
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nPos = SbiOpenRecord( r, B_STRINGPOOL, nStrings );
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// For every String:
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// sal_uInt32 Offset of the Strings in the Stringblock
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short i;
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for( i = 0; i < nStrings && SbiGood( r ); i++ )
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{
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r.WriteUInt32( (sal_uInt32) pStringOff[ i ] );
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}
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// Then the String-Block
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char* pByteStrings = new char[ nStringSize ];
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for( i = 0; i < nStrings; i++ )
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{
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sal_uInt16 nOff = (sal_uInt16) pStringOff[ i ];
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OString aStr(OUStringToOString(OUString(pStrings + nOff), eCharSet));
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memcpy( pByteStrings + nOff, aStr.getStr(), (aStr.getLength() + 1) * sizeof( char ) );
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}
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r.WriteUInt32( (sal_uInt32) nStringSize );
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r.Write( pByteStrings, nStringSize );
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delete[] pByteStrings;
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SbiCloseRecord( r, nPos );
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}
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// Set overall length
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SbiCloseRecord( r, nStart );
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if( !SbiGood( r ) )
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{
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bError = true;
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}
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return !bError;
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}
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/**************************************************************************
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*
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* Routines called by the compiler
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*
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**************************************************************************/
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void SbiImage::MakeStrings( short nSize )
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{
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nStrings = 0;
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nStringIdx = 0;
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nStringOff = 0;
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nStringSize = 1024;
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pStrings = new sal_Unicode[ nStringSize ];
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pStringOff = new sal_uInt32[ nSize ];
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if( pStrings && pStringOff )
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{
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nStrings = nSize;
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memset( pStringOff, 0, nSize * sizeof( sal_uInt32 ) );
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memset( pStrings, 0, nStringSize * sizeof( sal_Unicode ) );
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}
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else
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{
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bError = true;
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}
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}
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// Add a string to StringPool. The String buffer is dynamically
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// growing in 1K-Steps
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void SbiImage::AddString( const OUString& r )
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{
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if( nStringIdx >= nStrings )
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{
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bError = true;
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}
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if( !bError )
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{
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sal_Int32 len = r.getLength() + 1;
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sal_uInt32 needed = nStringOff + len;
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if( needed > 0xFFFFFF00L )
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{
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bError = true; // out of mem!
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}
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else if( needed > nStringSize )
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{
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sal_uInt32 nNewLen = needed + 1024;
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nNewLen &= 0xFFFFFC00; // trim to 1K border
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sal_Unicode* p = NULL;
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if( (p = new sal_Unicode[ nNewLen ]) != NULL )
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{
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memcpy( p, pStrings, nStringSize * sizeof( sal_Unicode ) );
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delete[] pStrings;
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pStrings = p;
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nStringSize = sal::static_int_cast< sal_uInt16 >(nNewLen);
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}
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else
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{
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bError = true;
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}
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}
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if( !bError )
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{
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pStringOff[ nStringIdx++ ] = nStringOff;
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memcpy( pStrings + nStringOff, r.getStr(), len * sizeof( sal_Unicode ) );
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nStringOff = nStringOff + len;
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// Last String? The update the size of the buffer
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if( nStringIdx >= nStrings )
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{
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nStringSize = nStringOff;
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}
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}
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}
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}
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// Add code block
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// The block was fetched by the compiler from class SbBuffer and
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// is already created with new. Additionally it contains all Integers
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// in Big Endian format, so can be directly read/written.
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void SbiImage::AddCode( char* p, sal_uInt32 s )
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{
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pCode = p;
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nCodeSize = s;
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}
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// Add user type
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void SbiImage::AddType(SbxObject* pObject)
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{
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if( !rTypes.Is() )
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{
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rTypes = new SbxArray;
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}
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SbxObject *pCopyObject = new SbxObject(*pObject);
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rTypes->Insert (pCopyObject,rTypes->Count());
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}
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void SbiImage::AddEnum(SbxObject* pObject) // Register enum type
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{
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if( !rEnums.Is() )
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{
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rEnums = new SbxArray;
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}
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rEnums->Insert( pObject, rEnums->Count() );
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}
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/**************************************************************************
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*
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* Accessing the image
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*
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**************************************************************************/
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// Note: IDs start with 1
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OUString SbiImage::GetString( short nId ) const
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{
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if( nId && nId <= nStrings )
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{
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sal_uInt32 nOff = pStringOff[ nId - 1 ];
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sal_Unicode* pStr = pStrings + nOff;
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// #i42467: Special treatment for vbNullChar
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if( *pStr == 0 )
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{
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sal_uInt32 nNextOff = (nId < nStrings) ? pStringOff[ nId ] : nStringOff;
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sal_uInt32 nLen = nNextOff - nOff - 1;
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if( nLen == 1 )
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{
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// Force length 1 and make char 0 afterwards
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OUString aNullCharStr( (sal_Unicode)0);
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return aNullCharStr;
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}
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}
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else
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{
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return OUString(pStr);
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}
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}
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return OUString();
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}
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const SbxObject* SbiImage::FindType (const OUString& aTypeName) const
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{
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return rTypes.Is() ? (SbxObject*)rTypes->Find(aTypeName,SbxCLASS_OBJECT) : NULL;
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}
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sal_uInt16 SbiImage::CalcLegacyOffset( sal_Int32 nOffset )
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{
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return SbiCodeGen::calcLegacyOffSet( (sal_uInt8*)pCode, nOffset ) ;
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}
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sal_uInt32 SbiImage::CalcNewOffset( sal_Int16 nOffset )
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{
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return SbiCodeGen::calcNewOffSet( (sal_uInt8*)pLegacyPCode, nOffset ) ;
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}
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void SbiImage::ReleaseLegacyBuffer()
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{
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delete[] pLegacyPCode;
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pLegacyPCode = NULL;
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nLegacyCodeSize = 0;
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}
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bool SbiImage::ExceedsLegacyLimits()
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{
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return ( nStringSize > 0xFF00L ) || ( CalcLegacyOffset( nCodeSize ) > 0xFF00L );
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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