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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 .
*/
// This file reflects the structure of MS file elements.
// It is very sensitive to alignment!
#ifndef INCLUDED_SOT_SOURCE_SDSTOR_STGELEM_HXX
#define INCLUDED_SOT_SOURCE_SDSTOR_STGELEM_HXX
#include <sot/stg.hxx>
class StgIo;
class SvStream;
SvStream& ReadClsId( SvStream&, ClsId& );
SvStream& WriteClsId( SvStream&, const ClsId& );
class StgHeader
{
static const sal_uInt8 cFATPagesInHeader = 109;
sal_uInt8 m_cSignature[ 8 ] = {}; // 00 signature (see below)
ClsId m_aClsId = {}; // 08 Class ID
sal_Int32 m_nVersion; // 18 version number
sal_uInt16 m_nByteOrder; // 1C Unicode byte order indicator
sal_Int16 m_nPageSize; // 1E 1 << nPageSize = block size
sal_Int16 m_nDataPageSize; // 20 1 << this size == data block size
sal_uInt8 m_bDirty; // 22 internal dirty flag (should be
// bool, but probably required to
// be exactly one byte)
sal_uInt8 m_cReserved[ 9 ] = {}; // 23
sal_Int32 m_nFATSize; // 2C total number of FAT pages
sal_Int32 m_nTOCstrm; // 30 starting page for the TOC stream
sal_Int32 m_nReserved; // 34
sal_Int32 m_nThreshold; // 38 minimum file size for big data
sal_Int32 m_nDataFAT; // 3C page # of 1st data FAT block
sal_Int32 m_nDataFATSize; // 40 # of data fat blocks
sal_Int32 m_nMasterChain; // 44 chain to the next master block
sal_Int32 m_nMaster; // 48 # of additional master blocks
sal_Int32 m_nMasterFAT[ cFATPagesInHeader ] = {}; // 4C first [cFATPagesInHeader] master FAT pages
public:
StgHeader();
void Init(); // initialize the header
bool Load( StgIo& );
bool Load( SvStream& );
bool Store( StgIo& );
bool Check(); // check the signature and version
sal_Int32 GetTOCStart() const { return m_nTOCstrm; }
void SetTOCStart( sal_Int32 n );
sal_Int32 GetDataFATStart() const { return m_nDataFAT; }
void SetDataFATStart( sal_Int32 n );
sal_Int32 GetDataFATSize() const { return m_nDataFATSize; }
void SetDataFATSize( sal_Int32 n );
sal_Int32 GetThreshold() const { return m_nThreshold; }
short GetPageSize() const { return m_nPageSize; }
short GetDataPageSize() const { return m_nDataPageSize; }
sal_Int32 GetFATSize() const { return m_nFATSize; }
void SetFATSize( sal_Int32 n );
sal_Int32 GetFATChain() const { return m_nMasterChain; }
void SetFATChain( sal_Int32 n );
sal_Int32 GetMasters() const { return m_nMaster; }
void SetMasters( sal_Int32 n );
static short GetFAT1Size() { return cFATPagesInHeader; }
sal_Int32 GetFATPage( short ) const;
void SetFATPage( short, sal_Int32 );
};
enum StgEntryType { // dir entry types:
STG_EMPTY = 0,
STG_STORAGE = 1,
STG_STREAM = 2,
STG_ROOT = 5
};
enum StgEntryRef { // reference blocks:
STG_LEFT = 0, // left
STG_RIGHT = 1, // right
STG_CHILD = 2, // child
STG_DATA = 3 // data start
};
#define STGENTRY_SIZE 128
//StructuredStorageDirectoryEntry
class StgEntry
{ // directory entry
sal_Unicode m_nName[ 32 ]; // 00 name as WCHAR
sal_uInt16 m_nNameLen; // 40 size of name in bytes including 00H
sal_uInt8 m_cType; // 42 entry type
sal_uInt8 m_cFlags; // 43 0 or 1 (tree balance?)
sal_Int32 m_nLeft; // 44 left node entry
sal_Int32 m_nRight; // 48 right node entry
sal_Int32 m_nChild; // 4C 1st child entry if storage
ClsId m_aClsId; // 50 class ID (optional)
sal_Int32 m_nFlags; // 60 state flags(?)
sal_Int32 m_nMtime[ 2 ]; // 64 modification time
sal_Int32 m_nAtime[ 2 ]; // 6C creation and access time
sal_Int32 m_nPage1; // 74 starting block (either direct or translated)
sal_Int32 m_nSize; // 78 file size
sal_Int32 m_nUnknown; // 7C unknown
OUString m_aName; // Name as Compare String (ascii, upper)
public:
void Init(); // initialize the data
void SetName( const OUString& ); // store a name (ASCII, up to 32 chars)
void GetName( OUString& rName ) const;
// fill in the name
sal_Int32 Compare( const StgEntry& ) const; // compare two entries
bool Load( const void* pBuffer, sal_uInt32 nBufSize, sal_uInt64 nUnderlyingStreamSize );
void Store( void* );
StgEntryType GetType() const { return static_cast<StgEntryType>(m_cType); }
sal_Int32 GetStartPage() const { return m_nPage1; }
void SetType( StgEntryType t ) { m_cType = static_cast<sal_uInt8>(t); }
sal_Int32 GetSize() const { return m_nSize; }
void SetSize( sal_Int32 n ) { m_nSize = n; }
const ClsId& GetClassId() const { return m_aClsId; }
void SetClassId( const ClsId& );
sal_Int32 GetLeaf( StgEntryRef ) const;
void SetLeaf( StgEntryRef, sal_Int32 );
};
#define STG_FREE -1L // page is free
#define STG_EOF -2L // page is last page in chain
#define STG_FAT -3L // page is FAT page
#define STG_MASTER -4L // page is master FAT page
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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