64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2023
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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. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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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: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
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* street, Riga, Latvia, EU, LV-1050.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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#include "PieceDescriptor.h"
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namespace DocFileFormat
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{
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PieceDescriptor::PieceDescriptor(unsigned char *bytes, unsigned int size, int code_page_) : fc(0), code_page(code_page_), cpStart(0), cpEnd(0)
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{
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if (8 == size)
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{
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//get the fc value
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unsigned int fcValue = FormatUtils::BytesToUInt32(bytes, 2, size);
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//get the flag
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bool flag = FormatUtils::BitmaskToBool((int)fcValue, 0x40000000);
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//delete the flag
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fcValue = fcValue & 0xBFFFFFFF;
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//find encoding and offset
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if (flag)
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{
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code_page = ENCODING_WINDOWS_1250;
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this->fc = (unsigned int)( fcValue / 2 );
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}
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else
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{
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code_page = (code_page == ENCODING_WINDOWS_1250 ? ENCODING_UTF16 : code_page_);
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this->fc = fcValue;
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}
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}
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}
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}
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