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core/MsBinaryFile/PptFile/Reader/Records.h
2023-02-28 00:57:11 +03:00

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/*
* (c) Copyright Ascensio System SIA 2010-2023
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha
* street, Riga, Latvia, EU, LV-1050.
*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
#pragma once
#include "PPTFileDefines.h"
#include "../Enums/RecordType.h"
#include "../Reader/ReadStructures.h"
#include "../../Common/Vml/PPTShape/Enums.h"
#include "../../XlsFile/Format/Binary/CFStream.h"
#include "../../../Common/3dParty/pole/pole.h"
#include "../../../OfficeCryptReader/source/CryptTransform.h"
#include "../../../OOXML/Base/Nullable.h"
#include "ReadStructures.h"
#include <boost/smart_ptr/shared_array.hpp>
//#include <iostream>
//#include <iomanip>
//#include <fstream>
std::string GetRecordName(PPT::RecordType dwType);
namespace PPT
{
class SRecordHeader
{
public:
unsigned char RecVersion;
unsigned short RecInstance;
RecordType RecType;
_UINT32 RecLen;
bool bBadHeader;
void Clear();
SRecordHeader();
bool ReadFromStream(const XLS::CFStreamPtr &pStream);
bool ReadFromStream(POLE::Stream * pStream);
bool IsContainer();
SRecordHeader& operator =(const SRecordHeader& oSrc);
};
class IRecord
{
public:
SRecordHeader m_oHeader;
virtual ~IRecord();
virtual void ReadFromStream(SRecordHeader & oHeader, const XLS::CFStreamPtr &pStream) = 0;
virtual void ReadFromStream(SRecordHeader & oHeader, POLE::Stream* pStream) = 0;
};
class CUnknownRecord : public IRecord
{
// этот класс - просто для того, чтобы нигде не проверять,
// реализована ли у нас такая запись
public:
CUnknownRecord();
virtual ~CUnknownRecord();
virtual void ReadFromStream(SRecordHeader & oHeader, const XLS::CFStreamPtr &pStream);
virtual void ReadFromStream(SRecordHeader & oHeader, POLE::Stream* pStream);
std::wstring ReadStringW(const XLS::CFStreamPtr &pStream, int size);
std::string ReadStringA(const XLS::CFStreamPtr &pStream, int size);
};
IRecord* CreateByType(SRecordHeader oHeader);
class CRecordsContainer : public CUnknownRecord
{
public:
std::vector<IRecord*> m_arRecords;
CRecordsContainer();
virtual ~CRecordsContainer();
void Clear();
virtual void ReadFromStream(SRecordHeader & oHeader, const XLS::CFStreamPtr &pStream);
virtual void ReadFromStream(SRecordHeader & oHeader, POLE::Stream* pStream);
template <typename T>
void GetRecordsByType(std::vector<T>* pArray, bool bIsChild, bool bOnlyFirst = false) const
{
if (NULL == pArray)
return;
// возвращаем указатели, их не удалять наверху!!!!
for (size_t nIndex = 0; nIndex < m_arRecords.size(); ++nIndex)
{
T pRec = dynamic_cast<T>(m_arRecords[nIndex]);
if (NULL != pRec)
{
pArray->push_back(pRec);
if (bOnlyFirst)
{
return;
}
}
else if ((bIsChild) && (m_arRecords[nIndex]->m_oHeader.IsContainer()))
{
CRecordsContainer* pContainer = dynamic_cast<CRecordsContainer*>(m_arRecords[nIndex]);
if (NULL != pContainer)
{
pContainer->GetRecordsByType(pArray, bIsChild, bOnlyFirst);
}
}
}
}
};
}