mirror of
https://github.com/ONLYOFFICE/core.git
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986 lines
24 KiB
C++
986 lines
24 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2018
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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 Lubanas st. 125a-25, Riga, Latvia,
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* EU, LV-1021.
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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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#ifndef _METAFILE_COMMON_METAFILEUTILS_H
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#define _METAFILE_COMMON_METAFILEUTILS_H
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#include "MetaFileTypes.h"
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#include "../Emf/EmfTypes.h"
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#include "../Wmf/WmfTypes.h"
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#include "../Emf/EmfObjects.h"
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#include "../Wmf/WmfObjects.h"
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#include <algorithm>
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namespace MetaFile
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{
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struct TRgbQuad
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{
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unsigned char r;
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unsigned char g;
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unsigned char b;
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TRgbQuad()
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{
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r = 0;
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g = 0;
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b = 0;
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}
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};
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class CDataStream
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{
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public:
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CDataStream() : pBuffer(NULL)
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{
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}
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~CDataStream()
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{
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}
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void SetStream(BYTE* pBuf, unsigned int unSize)
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{
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pBuffer = pBuf;
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pCur = pBuf;
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pEnd = pBuf + unSize + 1;
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};
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BYTE* GetCurPtr()
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{
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return pCur;
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}
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unsigned char ReadUChar()
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{
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if (pCur + 1 >= pEnd)
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return 0;
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unsigned char unResult = pCur[0];
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pCur++;
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return unResult;
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};
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unsigned short ReadUShort()
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{
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if (pCur + 2 >= pEnd)
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return 0;
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unsigned short ushResult = (pCur[0]) | ((pCur[1]) << 8);
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pCur += 2;
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return ushResult;
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};
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unsigned int ReadULong()
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{
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if (pCur + 4 >= pEnd)
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return 0;
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unsigned int unResult = (unsigned int)((pCur[0] << 0) | ((pCur[1]) << 8) | ((pCur[2]) << 16) | ((pCur[3]) << 24));
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pCur += 4;
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return unResult;
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};
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double ReadDouble()
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{
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if (pCur + 4 >= pEnd)
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return 0;
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float output;
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*((unsigned char*)(&output) + 0) = pCur[0];
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*((unsigned char*)(&output) + 1) = pCur[1];
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*((unsigned char*)(&output) + 2) = pCur[2];
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*((unsigned char*)(&output) + 3) = pCur[3];
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pCur += 4;
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return output;
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int lIntValue = (int)((pCur[0] << 16) | ((pCur[1]) << 8) | ((pCur[2]) << 0));
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int lFracValue = (int)(pCur[3]);
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pCur += 4;
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return (double)(lIntValue + (lFracValue / 16.0));
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};
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char ReadChar()
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{
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return (char)ReadUChar();
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};
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short ReadShort()
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{
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return (short)ReadUShort();
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};
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int ReadLong()
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{
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return (int)ReadULong();
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};
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void ReadBytes(unsigned char* pBuffer, unsigned int ulSize)
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{
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size_t ulRemainSize = (pEnd - pCur);
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size_t ulFinalSize = (ulRemainSize > ulSize ? ulSize : ulRemainSize);
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for (size_t ulIndex = 0; ulIndex < ulFinalSize; ulIndex++)
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{
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pBuffer[ulIndex] = ReadChar();
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}
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};
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void ReadBytes(unsigned short* pBuffer, unsigned int ulSize)
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{
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size_t ulRemainSize = (pEnd - pCur) / 2;
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size_t ulFinalSize = (ulRemainSize > ulSize ? ulSize : ulRemainSize);
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for (size_t ulIndex = 0; ulIndex < ulFinalSize; ulIndex++)
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{
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pBuffer[ulIndex] = ReadUShort();
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}
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}
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void ReadBytes(short* pBuffer, unsigned int ulSize)
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{
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size_t ulRemainSize = (pEnd - pCur) / 2;
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size_t ulFinalSize = (ulRemainSize > ulSize ? ulSize : ulRemainSize);
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for (size_t ulIndex = 0; ulIndex < ulFinalSize; ulIndex++)
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{
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pBuffer[ulIndex] = ReadShort();
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}
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}
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void ReadBytes(unsigned int* pBuffer, unsigned int ulSize)
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{
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size_t ulRemainSize = (pEnd - pCur) / 4;
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size_t ulFinalSize = (ulRemainSize > ulSize ? ulSize : ulRemainSize);
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for (size_t ulIndex = 0; ulIndex < ulFinalSize; ulIndex++)
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{
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pBuffer[ulIndex] = ReadULong();
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}
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}
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CDataStream& operator>>(unsigned char& nValue)
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{
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nValue = ReadUChar();
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return *this;
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}
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CDataStream& operator>>(unsigned short& nValue)
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{
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nValue = ReadUShort();
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return *this;
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}
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CDataStream& operator>>(unsigned int& nValue)
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{
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nValue = ReadULong();
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return *this;
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}
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CDataStream& operator>>(unsigned long& nValue)
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{
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nValue = ReadULong();
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return *this;
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}
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CDataStream& operator>>(double& dValue)
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{
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dValue = ReadDouble();
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return *this;
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}
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CDataStream& operator>>(char& nValue)
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{
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nValue = ReadChar();
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return *this;
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}
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CDataStream& operator>>(bool& nValue)
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{
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nValue = !!ReadChar();
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return *this;
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}
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CDataStream& operator>>(short& nValue)
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{
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nValue = ReadShort();
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return *this;
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}
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CDataStream& operator>>(int& nValue)
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{
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nValue = ReadLong();
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return *this;
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}
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CDataStream& operator>>(long& nValue)
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{
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nValue = ReadLong();
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return *this;
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}
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CDataStream& operator>>(TEmfRect& oRect)
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{
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*this >> oRect.shLeft;
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*this >> oRect.shTop;
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*this >> oRect.shRight;
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*this >> oRect.shBottom;
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return *this;
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}
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CDataStream& operator>>(TEmfRectL& oRect)
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{
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*this >> oRect.lLeft;
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*this >> oRect.lTop;
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*this >> oRect.lRight;
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*this >> oRect.lBottom;
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return *this;
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}
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CDataStream& operator>>(TEmfSizeL& oSize)
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{
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*this >> oSize.cx;
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*this >> oSize.cy;
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return *this;
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}
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CDataStream& operator>>(TEmfColor& oColor)
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{
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*this >> oColor.r;
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*this >> oColor.g;
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*this >> oColor.b;
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*this >> oColor.a;
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return *this;
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}
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CDataStream& operator>>(CEmfLogBrushEx& oBrush)
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{
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*this >> oBrush.BrushStyle;
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*this >> oBrush.Color;
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*this >> oBrush.BrushHatch;
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return *this;
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}
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CDataStream& operator>>(TEmfPointL& oPoint)
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{
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*this >> oPoint.x;
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*this >> oPoint.y;
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return *this;
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}
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CDataStream& operator>>(TEmfPointS& oPoint)
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{
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*this >> oPoint.x;
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*this >> oPoint.y;
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return *this;
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}
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CDataStream& operator>>(TEmfEmrText& oText)
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{
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*this >> oText.Reference;
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*this >> oText.Chars;
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*this >> oText.offString;
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*this >> oText.Options;
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*this >> oText.Rectangle;
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*this >> oText.offDx;
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oText.OutputString = NULL;
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oText.OutputDx = NULL;
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return *this;
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}
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CDataStream& operator>>(TEmfExtTextoutW& oText)
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{
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*this >> oText.Bounds;
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*this >> oText.iGraphicsMode;
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*this >> oText.exScale;
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*this >> oText.eyScale;
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ReadEmrTextW(oText.wEmrText, 36); // 8 + 28 (8 - тип и размер, 28 - размер данной структуры)
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return *this;
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}
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CDataStream& operator>>(TEmfExtTextoutA& oText)
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{
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*this >> oText.Bounds;
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*this >> oText.iGraphicsMode;
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*this >> oText.exScale;
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*this >> oText.eyScale;
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ReadEmrTextA(oText.aEmrText, 36); // 8 + 28 (8 - тип и размер, 28 - размер данной структуры)
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return *this;
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}
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CDataStream& operator>>(TEmfLogFont& oFont)
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{
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*this >> oFont.Height;
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*this >> oFont.Width;
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*this >> oFont.Escapement;
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*this >> oFont.Orientation;
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*this >> oFont.Weight;
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*this >> oFont.Italic;
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*this >> oFont.Underline;
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*this >> oFont.StrikeOut;
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*this >> oFont.CharSet;
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*this >> oFont.OutPrecision;
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*this >> oFont.ClipPrecision;
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*this >> oFont.Quality;
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*this >> oFont.PitchAndFamily;
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ReadBytes(oFont.FaceName, 32);
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return *this;
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}
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CDataStream& operator>>(TEmfLogFontEx& oFont)
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{
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*this >> oFont.LogFont;
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ReadBytes(oFont.FullName, 64);
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ReadBytes(oFont.Style, 32);
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ReadBytes(oFont.Script, 32);
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return *this;
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}
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CDataStream& operator>>(TEmfDesignVector& oVector)
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{
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*this >> oVector.Signature;
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*this >> oVector.NumAxes;
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oVector.Values = NULL;
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if (oVector.Signature != 0x08007664 || oVector.NumAxes > 16 || oVector.NumAxes <= 0)
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return *this;
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oVector.Values = new int[oVector.NumAxes];
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if (!oVector.Values)
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return *this;
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for (unsigned int ulIndex = 0; ulIndex < oVector.NumAxes; ulIndex++)
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*this >> oVector.Values[ulIndex];
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return *this;
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}
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CDataStream& operator>>(CEmfLogFont& oFont)
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{
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if (oFont.IsFixedLength())
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{
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*this >> oFont.LogFontEx.LogFont;
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ReadBytes(oFont.LogFontEx.FullName, 64);
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ReadBytes(oFont.LogFontEx.Style, 32);
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ReadBytes(oFont.LogFontEx.Script, 18);
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}
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else
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{
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*this >> oFont.LogFontEx;
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*this >> oFont.DesignVector;
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}
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return *this;
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}
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CDataStream& operator>>(TEmfBitBlt& oBitBtl)
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{
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*this >> oBitBtl.Bounds;
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*this >> oBitBtl.xDest;
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*this >> oBitBtl.yDest;
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*this >> oBitBtl.cxDest;
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*this >> oBitBtl.cyDest;
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*this >> oBitBtl.BitBltRasterOperation;
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*this >> oBitBtl.xSrc;
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*this >> oBitBtl.ySrc;
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*this >> oBitBtl.XfromSrc;
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*this >> oBitBtl.BkColorSrc;
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*this >> oBitBtl.UsageSrc;
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*this >> oBitBtl.offBmiSrc;
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*this >> oBitBtl.cbBmiSrc;
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*this >> oBitBtl.offBitsSrc;
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*this >> oBitBtl.cbBitsSrc;
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return *this;
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}
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CDataStream& operator>>(TEmfXForm& oXForm)
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{
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*this >> oXForm.M11;
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*this >> oXForm.M12;
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*this >> oXForm.M21;
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*this >> oXForm.M22;
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*this >> oXForm.Dx;
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*this >> oXForm.Dy;
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return *this;
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}
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CDataStream& operator>>(TEmfStretchDIBITS& oBitmap)
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{
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*this >> oBitmap.Bounds;
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*this >> oBitmap.xDest;
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*this >> oBitmap.yDest;
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*this >> oBitmap.xSrc;
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*this >> oBitmap.ySrc;
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*this >> oBitmap.cxSrc;
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*this >> oBitmap.cySrc;
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*this >> oBitmap.offBmiSrc;
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*this >> oBitmap.cbBmiSrc;
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*this >> oBitmap.offBitsSrc;
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*this >> oBitmap.cbBitsSrc;
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*this >> oBitmap.UsageSrc;
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*this >> oBitmap.BitBltRasterOperation;
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*this >> oBitmap.cxDest;
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*this >> oBitmap.cyDest;
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return *this;
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}
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CDataStream& operator>>(TEmfSetDiBitsToDevice& oBitmap)
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{
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*this >> oBitmap.Bounds;
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*this >> oBitmap.xDest;
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*this >> oBitmap.yDest;
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*this >> oBitmap.xSrc;
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*this >> oBitmap.ySrc;
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*this >> oBitmap.cxSrc;
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*this >> oBitmap.cySrc;
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*this >> oBitmap.offBmiSrc;
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*this >> oBitmap.cbBmiSrc;
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*this >> oBitmap.offBitsSrc;
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*this >> oBitmap.cbBitsSrc;
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*this >> oBitmap.UsageSrc;
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*this >> oBitmap.iStartScan;
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*this >> oBitmap.cScans;
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return *this;
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}
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CDataStream& operator>>(TEmfDibPatternBrush& oBitmap)
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{
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*this >> oBitmap.Usage;
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*this >> oBitmap.offBmi;
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*this >> oBitmap.cbBmi;
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*this >> oBitmap.offBits;
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*this >> oBitmap.cbBits;
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return *this;
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}
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CDataStream& operator>>(TEmfLogPaletteEntry& oEntry)
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{
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*this >> oEntry.Reserved;
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*this >> oEntry.Blue;
|
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*this >> oEntry.Green;
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*this >> oEntry.Red;
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return *this;
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}
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|
CDataStream& operator>>(CEmfLogPalette& oPalette)
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{
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unsigned short ushVersion;
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*this >> ushVersion;
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*this >> oPalette.NumberOfEntries;
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if (oPalette.NumberOfEntries > 0)
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{
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oPalette.PaletteEntries = new TEmfLogPaletteEntry[oPalette.NumberOfEntries];
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if (!oPalette.PaletteEntries)
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{
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oPalette.NumberOfEntries = 0;
|
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oPalette.PaletteEntries = NULL;
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|
return *this;
|
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}
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|
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for (unsigned short ushIndex = 0; ushIndex < oPalette.NumberOfEntries; ushIndex++)
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{
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*this >> oPalette.PaletteEntries[ushIndex];
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}
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}
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else
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oPalette.PaletteEntries = NULL;
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|
return *this;
|
|
}
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CDataStream& operator>>(TRgbQuad& oRGB)
|
|
{
|
|
*this >> oRGB.b;
|
|
*this >> oRGB.g;
|
|
*this >> oRGB.r;
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Skip(1); // reserved
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return *this;
|
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}
|
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CDataStream& operator>>(TEmfPolyTextoutA& oText)
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|
{
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*this >> oText.Bounds;
|
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*this >> oText.iGraphicsMode;
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*this >> oText.exScale;
|
|
*this >> oText.eyScale;
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|
*this >> oText.cStrings;
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|
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|
if (0 != oText.cStrings)
|
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{
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oText.aEmrText = new TEmfEmrText[oText.cStrings];
|
|
if (!oText.aEmrText)
|
|
return *this;
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|
|
|
unsigned int nStartPos = Tell();
|
|
for (unsigned int unIndex = 0; unIndex < oText.cStrings; unIndex++)
|
|
{
|
|
unsigned int nCurPos = Tell();
|
|
ReadEmrTextA(oText.aEmrText[unIndex], nCurPos - nStartPos + 36); // 8 + 28 (8 - тип и размер, 28 - размер данной структуры)
|
|
}
|
|
}
|
|
else
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|
{
|
|
oText.aEmrText = NULL;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TEmfPolyTextoutW& oText)
|
|
{
|
|
*this >> oText.Bounds;
|
|
*this >> oText.iGraphicsMode;
|
|
*this >> oText.exScale;
|
|
*this >> oText.eyScale;
|
|
*this >> oText.cStrings;
|
|
|
|
if (0 != oText.cStrings)
|
|
{
|
|
oText.wEmrText = new TEmfEmrText[oText.cStrings];
|
|
if (!oText.wEmrText)
|
|
return *this;
|
|
|
|
unsigned int nStartPos = Tell();
|
|
for (unsigned int unIndex = 0; unIndex < oText.cStrings; unIndex++)
|
|
{
|
|
unsigned int nCurPos = Tell();
|
|
ReadEmrTextW(oText.wEmrText[unIndex], nCurPos - nStartPos + 36); // 8 + 28 (8 - тип и размер, 28 - размер данной структуры)
|
|
}
|
|
}
|
|
else
|
|
{
|
|
oText.wEmrText = NULL;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TEmfSmallTextout& oText)
|
|
{
|
|
*this >> oText.x;
|
|
*this >> oText.y;
|
|
*this >> oText.cChars;
|
|
*this >> oText.fuOptions;
|
|
*this >> oText.iGraphicsMode;
|
|
*this >> oText.exScale;
|
|
*this >> oText.eyScale;
|
|
|
|
if (!(oText.fuOptions & ETO_NO_RECT))
|
|
*this >> oText.Bounds;
|
|
|
|
oText.TextString = NULL;
|
|
if (oText.cChars)
|
|
{
|
|
unsigned short* pUnicode = NULL;
|
|
if (oText.fuOptions & ETO_SMALL_CHARS)
|
|
{
|
|
unsigned char* pString = new unsigned char[oText.cChars];
|
|
if (!pString)
|
|
return *this;
|
|
|
|
ReadBytes(pString, oText.cChars);
|
|
|
|
pUnicode = new unsigned short[oText.cChars];
|
|
if (!pUnicode)
|
|
{
|
|
delete[] pString;
|
|
return *this;
|
|
}
|
|
|
|
for (unsigned int unIndex = 0; unIndex < oText.cChars; unIndex++)
|
|
{
|
|
pUnicode[unIndex] = pString[unIndex];
|
|
}
|
|
delete[] pString;
|
|
}
|
|
else
|
|
{
|
|
pUnicode = new unsigned short[oText.cChars];
|
|
if (!pUnicode)
|
|
return *this;
|
|
|
|
ReadBytes(pUnicode, oText.cChars);
|
|
}
|
|
oText.TextString = pUnicode;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TEmfAlphaBlend& oBitmap)
|
|
{
|
|
*this >> oBitmap.Bounds;
|
|
*this >> oBitmap.xDest;
|
|
*this >> oBitmap.yDest;
|
|
*this >> oBitmap.cxDest;
|
|
*this >> oBitmap.cyDest;
|
|
*this >> oBitmap.BlendOperation;
|
|
*this >> oBitmap.BlendFlags;
|
|
*this >> oBitmap.SrcConstantAlpha;
|
|
*this >> oBitmap.AlphaFormat;
|
|
*this >> oBitmap.xSrc;
|
|
*this >> oBitmap.ySrc;
|
|
*this >> oBitmap.XformSrc;
|
|
*this >> oBitmap.BkColor;
|
|
*this >> oBitmap.UsageSrc;
|
|
*this >> oBitmap.offBmiSrc;
|
|
*this >> oBitmap.cbBmiSrc;
|
|
*this >> oBitmap.offBitsSrc;
|
|
*this >> oBitmap.cbBitsSrc;
|
|
*this >> oBitmap.cxSrc;
|
|
*this >> oBitmap.cySrc;
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfRect& oRect)
|
|
{
|
|
*this >> oRect.Left;
|
|
*this >> oRect.Top;
|
|
*this >> oRect.Right;
|
|
*this >> oRect.Bottom;
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfColor& oColor)
|
|
{
|
|
*this >> oColor.r;
|
|
*this >> oColor.g;
|
|
*this >> oColor.b;
|
|
*this >> oColor.a;
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfPointS& oPoint)
|
|
{
|
|
*this >> oPoint.x;
|
|
*this >> oPoint.y;
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfLogBrush& oBrush)
|
|
{
|
|
*this >> oBrush.BrushStyle;
|
|
*this >> oBrush.Color;
|
|
*this >> oBrush.BurshHatch;
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(CWmfFont* pFont)
|
|
{
|
|
*this >> pFont->Height;
|
|
*this >> pFont->Width;
|
|
*this >> pFont->Escapement;
|
|
*this >> pFont->Orientation;
|
|
*this >> pFont->Weight;
|
|
*this >> pFont->Italic;
|
|
*this >> pFont->Underline;
|
|
*this >> pFont->StrikeOut;
|
|
*this >> pFont->CharSet;
|
|
*this >> pFont->OutPrecision;
|
|
*this >> pFont->ClipPrecision;
|
|
*this >> pFont->Quality;
|
|
*this >> pFont->PitchAndFamily;
|
|
|
|
// Читаем до тех пор пока не встретим нулевой символ
|
|
unsigned char unIndex = 0;
|
|
*this >> pFont->Facename[unIndex];
|
|
while (0x00 != pFont->Facename[unIndex])
|
|
{
|
|
unIndex++;
|
|
if (32 == unIndex)
|
|
break;
|
|
|
|
*this >> pFont->Facename[unIndex];
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfPaletteEntry& oEntry)
|
|
{
|
|
*this >> oEntry.Values;
|
|
*this >> oEntry.Blue;
|
|
*this >> oEntry.Green;
|
|
*this >> oEntry.Red;
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(CWmfPalette* pPalette)
|
|
{
|
|
*this >> pPalette->Start;
|
|
*this >> pPalette->NumberOfEntries;
|
|
|
|
if (pPalette->NumberOfEntries > 0)
|
|
{
|
|
pPalette->aPaletteEntries = new TWmfPaletteEntry[pPalette->NumberOfEntries];
|
|
if (!pPalette->aPaletteEntries)
|
|
{
|
|
pPalette->aPaletteEntries = NULL;
|
|
pPalette->NumberOfEntries = 0;
|
|
return *this;
|
|
}
|
|
|
|
for (unsigned short ushIndex = 0; ushIndex < pPalette->NumberOfEntries; ushIndex++)
|
|
{
|
|
*this >> pPalette->aPaletteEntries[ushIndex];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pPalette->aPaletteEntries = NULL;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(CWmfPen* pPen)
|
|
{
|
|
*this >> pPen->PenStyle;
|
|
*this >> pPen->Width;
|
|
*this >> pPen->Color;
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfScanLine& oLine)
|
|
{
|
|
*this >> oLine.Left;
|
|
*this >> oLine.Right;
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfScanObject& oScan)
|
|
{
|
|
*this >> oScan.Count;
|
|
*this >> oScan.Top;
|
|
*this >> oScan.Bottom;
|
|
|
|
if (oScan.Count > 0 && oScan.Count & 1) // Должно делиться на 2
|
|
{
|
|
unsigned short ushCount = oScan.Count >> 1;
|
|
oScan.ScanLines = new TWmfScanLine[ushCount];
|
|
if (oScan.ScanLines)
|
|
{
|
|
for (unsigned short ushIndex = 0; ushIndex < ushCount; ushIndex++)
|
|
{
|
|
*this >> oScan.ScanLines[ushIndex];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
oScan.ScanLines = NULL;
|
|
oScan.Count = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
oScan.ScanLines = NULL;
|
|
}
|
|
*this >> oScan.Count2;
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(CWmfRegion* pRegion)
|
|
{
|
|
*this >> pRegion->nextInChain;
|
|
*this >> pRegion->ObjectType;
|
|
*this >> pRegion->RegionSize;
|
|
*this >> pRegion->ScanCount;
|
|
*this >> pRegion->MaxScan;
|
|
*this >> pRegion->BoundingRectangle;
|
|
|
|
if (pRegion->ScanCount > 0)
|
|
{
|
|
pRegion->aScans = new TWmfScanObject[pRegion->ScanCount];
|
|
if (!pRegion->aScans)
|
|
{
|
|
pRegion->aScans = NULL;
|
|
pRegion->ScanCount = 0;
|
|
return *this;
|
|
}
|
|
for (unsigned short ushIndex = 0; ushIndex < pRegion->ScanCount; ushIndex++)
|
|
{
|
|
*this >> pRegion->aScans[ushIndex];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pRegion->aScans = NULL;
|
|
}
|
|
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfStretchBlt& oBitmap)
|
|
{
|
|
*this >> oBitmap.RasterOperation;
|
|
*this >> oBitmap.SrcHeight;
|
|
*this >> oBitmap.SrcWidth;
|
|
*this >> oBitmap.YSrc;
|
|
*this >> oBitmap.XSrc;
|
|
*this >> oBitmap.DestHeight;
|
|
*this >> oBitmap.DestWidth;
|
|
*this >> oBitmap.YDest;
|
|
*this >> oBitmap.XDest;
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfBitmap16& oBitmap)
|
|
{
|
|
*this >> oBitmap.Type;
|
|
*this >> oBitmap.Width;
|
|
*this >> oBitmap.Height;
|
|
*this >> oBitmap.WidthBytes;
|
|
*this >> oBitmap.Planes;
|
|
*this >> oBitmap.BitsPixel;
|
|
|
|
unsigned int unBitsCount = (((oBitmap.Width * oBitmap.BitsPixel + 15) >> 4) << 1) * oBitmap.Height;
|
|
if (CanRead() >= unBitsCount)
|
|
{
|
|
//oBitmap.Bits = new unsigned char[unBitsCount];
|
|
}
|
|
else
|
|
{
|
|
oBitmap.Bits = NULL;
|
|
oBitmap.Width = 0;
|
|
oBitmap.Height = 0;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfBitBlt& oBitmap)
|
|
{
|
|
*this >> oBitmap.RasterOperation;
|
|
*this >> oBitmap.YSrc;
|
|
*this >> oBitmap.XSrc;
|
|
*this >> oBitmap.Height;
|
|
*this >> oBitmap.Width;
|
|
*this >> oBitmap.YDest;
|
|
*this >> oBitmap.XDest;
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfSetDibToDev& oBitmap)
|
|
{
|
|
*this >> oBitmap.ColorUsage;
|
|
*this >> oBitmap.ScanCount;
|
|
*this >> oBitmap.StartScan;
|
|
*this >> oBitmap.yDib;
|
|
*this >> oBitmap.xDib;
|
|
*this >> oBitmap.Height;
|
|
*this >> oBitmap.Width;
|
|
*this >> oBitmap.yDest;
|
|
*this >> oBitmap.xDest;
|
|
return *this;
|
|
}
|
|
CDataStream& operator>>(TWmfStretchDib& oBitmap)
|
|
{
|
|
*this >> oBitmap.RasterOperation;
|
|
*this >> oBitmap.ColorUsage;
|
|
*this >> oBitmap.SrcHeight;
|
|
*this >> oBitmap.SrcWidth;
|
|
*this >> oBitmap.YSrc;
|
|
*this >> oBitmap.XSrc;
|
|
*this >> oBitmap.DestHeight;
|
|
*this >> oBitmap.DestWidth;
|
|
*this >> oBitmap.yDst;
|
|
*this >> oBitmap.xDst;
|
|
return *this;
|
|
}
|
|
|
|
|
|
bool IsValid() const
|
|
{
|
|
if (NULL == pBuffer)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool IsEof() const
|
|
{
|
|
if (pCur >= pEnd)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
unsigned int Tell()
|
|
{
|
|
return (unsigned int)(pCur - pBuffer);
|
|
}
|
|
|
|
void Skip(unsigned int ulSkip)
|
|
{
|
|
pCur += ulSkip;
|
|
}
|
|
|
|
void SeekBack(unsigned int ulSkipBack)
|
|
{
|
|
pCur -= ulSkipBack;
|
|
}
|
|
|
|
void SeekToStart()
|
|
{
|
|
pCur = pBuffer;
|
|
}
|
|
|
|
unsigned int CanRead()
|
|
{
|
|
return (unsigned int)(pEnd - pCur);
|
|
}
|
|
|
|
private:
|
|
|
|
template<typename T>void ReadEmrTextBase(TEmfEmrText& oText, unsigned int unOffset)
|
|
{
|
|
*this >> oText;
|
|
|
|
// Читаем OutputString
|
|
const unsigned int unCharsCount = oText.Chars;
|
|
int nSkip = oText.offString - (unOffset + 40); // 40 - размер структуры TEmfEmrText
|
|
Skip(nSkip);
|
|
T* pString = new T[unCharsCount + 1];
|
|
if (pString)
|
|
{
|
|
pString[unCharsCount] = 0x00;
|
|
ReadBytes(pString, unCharsCount);
|
|
oText.OutputString = (void*)pString;
|
|
}
|
|
|
|
// Читаем OutputDx
|
|
nSkip = oText.offDx - oText.offString - 2 * unCharsCount;
|
|
Skip(nSkip);
|
|
const unsigned int unDxCount = oText.Options & ETO_PDY ? 2 * unCharsCount : unCharsCount;
|
|
unsigned int* pDx = new unsigned int[unDxCount];
|
|
if (pDx)
|
|
{
|
|
ReadBytes(pDx, unDxCount);
|
|
oText.OutputDx = pDx;
|
|
}
|
|
}
|
|
void ReadEmrTextA(TEmfEmrText& oText, unsigned int unOffset)
|
|
{
|
|
ReadEmrTextBase<unsigned char>(oText, unOffset);
|
|
}
|
|
void ReadEmrTextW(TEmfEmrText& oText, unsigned int unOffset)
|
|
{
|
|
ReadEmrTextBase<unsigned short>(oText, unOffset);
|
|
}
|
|
|
|
private:
|
|
|
|
BYTE *pBuffer;
|
|
BYTE *pCur;
|
|
BYTE *pEnd;
|
|
};
|
|
|
|
void ReadImage(BYTE* pHeaderBuffer, unsigned int ulHeaderBufferLen, BYTE* pImageBuffer, unsigned int ulImageBufferLen, BYTE** ppDstBuffer, unsigned int* pulWidth, unsigned int* pulHeight);
|
|
void ReadImage(BYTE* pImageBuffer, unsigned int unBufferLen, unsigned int unColorUsage, BYTE** ppDstBuffer, unsigned int* punWidth, unsigned int* punHeight);
|
|
double GetEllipseAngle(int nL, int nT, int nR, int nB, int nX, int nY);
|
|
void ProcessRasterOperation(unsigned int unRasterOperation, BYTE** ppBgra, unsigned int unWidth, unsigned int unHeight);
|
|
bool OpenTempFile(std::wstring *pwsName, FILE **ppFile, const wchar_t *wsMode, const wchar_t *wsExt, const wchar_t *wsFolder);
|
|
};
|
|
#endif // _METAFILE_COMMON_METAFILEUTILS_H
|