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76ee07f61c
Co-authored-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com> Co-committed-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com>
113 lines
3.3 KiB
C++
113 lines
3.3 KiB
C++
/*
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* Copyright (C) Ascensio System SIA, 2009-2026
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation, together with the
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* additional terms provided in the LICENSE file.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: https://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA by email at info@onlyoffice.com
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* or by postal mail at 20A-6 Ernesta Birznieka-Upisha Street, Riga,
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* LV-1050, Latvia, European Union.
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*
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* The interactive user interfaces in modified versions of the Program
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* are required to display Appropriate Legal Notices in accordance with
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* Section 5 of the GNU AGPL version 3.
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*
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* No trademark rights are granted under this License.
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*
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* All non-code elements of the Product, including illustrations,
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* icon sets, and technical writing content, are licensed under the
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* Creative Commons Attribution-ShareAlike 4.0 International License:
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* https://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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* This license applies only to such non-code elements and does not
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* modify or replace the licensing terms applicable to the Program's
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* source code, which remains licensed under the GNU Affero General
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* Public License v3.
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*
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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#ifndef HWPSTREAM_H
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#define HWPSTREAM_H
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#include <stack>
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#include "Common/Common.h"
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namespace HWP
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{
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enum class EStringCharacter
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{
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ASCII,
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UTF16,
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UTF32
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};
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class CHWPStream
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{
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HWP_BYTE* m_pBegin;
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HWP_BYTE* m_pCur;
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HWP_BYTE* m_pEnd;
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std::stack<HWP_BYTE*> m_arSavedPositions;
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bool m_bExternalBuffer;
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public:
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CHWPStream();
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CHWPStream(unsigned long ulSize);
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CHWPStream(HWP_BYTE* pBuffer, unsigned long ulSize, bool bExternalBuffer = true);
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~CHWPStream();
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void Clear();
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void Copy(CHWPStream& oStream, unsigned long ulSize);
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void SetStream(HWP_BYTE* pBuffer, unsigned long ulSize, bool bExternalBuffer = true);
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HWP_BYTE* GetCurPtr();
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const HWP_BYTE* GetCurPtr() const;
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unsigned long Tell() const;
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unsigned long SizeToEnd() const;
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void Expand(unsigned long ulSize);
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bool ReadChar(HWP_CHAR& chValue);
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bool ReadFloat(float& fValue);
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bool ReadDouble(double& dValue);
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bool ReadLong(long long& lValue);
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bool ReadInt(int& nValue);
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bool ReadColor(int& nValue);
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bool ReadShort(short& shValue);
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short ReadShort();
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bool ReadByte(HWP_BYTE& chValue);
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HWP_BYTE ReadByte();
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bool ReadString(HWP_STRING& sValue, EStringCharacter eCharacter);
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bool ReadString(HWP_STRING& sValue, int nLength, EStringCharacter eCharacter);
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unsigned long ReadBytes(HWP_BYTE* pBytes, unsigned long unSize);
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void Skip(int nStep);
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void MoveToStart();
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void MoveTo(unsigned int unPosition);
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bool CanRead(int nSize = 1) const;
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bool IsValid() const;
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bool IsEof() const;
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unsigned int GetSize() const;
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void SavePosition();
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void RemoveLastSavedPos();
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int GetDistanceToLastPos(bool bRemoveLastPos = false);
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HWP_BYTE operator[](unsigned int unPosition) const;
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bool WriteBytes(const HWP_BYTE* pBuffer, unsigned long ulSize);
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};
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#define CHECK_FLAG(value, flag) ((value) & flag) == flag
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}
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#endif // HWPSTREAM_H
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