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Diffstat (limited to 'sot/source/sdstor/stgelem.hxx')
| -rw-r--r-- | sot/source/sdstor/stgelem.hxx | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/sot/source/sdstor/stgelem.hxx b/sot/source/sdstor/stgelem.hxx new file mode 100644 index 000000000..855b2b879 --- /dev/null +++ b/sot/source/sdstor/stgelem.hxx @@ -0,0 +1,146 @@ +/* -*- 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: */ |