402 lines
11 KiB
C++
402 lines
11 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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#ifndef CORE_GRCLIP_H
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#define CORE_GRCLIP_H
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#include <vector>
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#include <string>
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#include <math.h>
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#include "../lib/xpdf/GfxState.h"
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#include "../../DesktopEditor/common/Types.h"
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#include "MemoryUtils.h"
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struct GfxClipMatrix
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{
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double dA;
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double dB;
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double dC;
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double dD;
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double dE;
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double dF;
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void FromDoublePointer(double* pMatrix)
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{
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dA = pMatrix[0];
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dB = pMatrix[1];
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dC = pMatrix[2];
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dD = pMatrix[3];
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dE = pMatrix[4];
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dF = pMatrix[5];
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}
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};
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class GfxTextClip
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{
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public:
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GfxTextClip()
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{
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m_nTextsCount = m_nSize = 0;
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m_pTexts = NULL;
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m_pMatrix = NULL;
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}
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GfxTextClip *Copy()
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{
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return new GfxTextClip(this);
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}
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~GfxTextClip()
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{
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for (int nIndex = 0; nIndex < m_nTextsCount; ++nIndex)
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{
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FreeWString(m_pTexts[nIndex].wsText);
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FreeWString(m_pTexts[nIndex].wsFontName);
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FreeWString(m_pTexts[nIndex].wsFontPath);
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}
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PdfReader::MemUtilsFree(m_pTexts);
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PdfReader::MemUtilsFree(m_pMatrix);
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}
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void Reset()
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{
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for (int nIndex = 0; nIndex < m_nTextsCount; ++nIndex)
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{
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FreeWString(m_pTexts[nIndex].wsText);
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FreeWString(m_pTexts[nIndex].wsFontName);
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FreeWString(m_pTexts[nIndex].wsFontPath);
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}
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PdfReader::MemUtilsFree(m_pTexts);
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PdfReader::MemUtilsFree(m_pMatrix);
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m_nTextsCount = m_nSize = 0;
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m_pTexts = NULL;
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m_pMatrix = NULL;
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}
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void
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ClipToText(std::wstring &wsFontName, std::wstring &wsFontPath, double dFontSize, int nFontStyle, double *pMatrix,
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std::wstring &wsText, double dX, double dY, double dWidth = 0, double dHeight = 0,
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double dBaseLineOffset = 0)
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{
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Resize(1);
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m_pTexts[m_nTextsCount].wsFontName = AllocWString(wsFontName);
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m_pTexts[m_nTextsCount].wsFontPath = AllocWString(wsFontPath);
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m_pTexts[m_nTextsCount].dFontSize = dFontSize;
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m_pTexts[m_nTextsCount].nFontStyle = nFontStyle;
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m_pTexts[m_nTextsCount].wsText = AllocWString(wsText);
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m_pTexts[m_nTextsCount].dX = dX;
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m_pTexts[m_nTextsCount].dY = dY;
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m_pTexts[m_nTextsCount].dWidth = dWidth;
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m_pTexts[m_nTextsCount].dHeight = dHeight;
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m_pTexts[m_nTextsCount].dBaseLineOffset = dBaseLineOffset;
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m_pMatrix[m_nTextsCount].FromDoublePointer(pMatrix);
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++m_nTextsCount;
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return;
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}
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int GetTextsCount()
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{
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return m_nTextsCount;
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}
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wchar_t * GetText(int nTextIndex, double *pdX, double *pdY, double *pdWidth, double *pdHeight, double *pdBaseLineOffset,
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wchar_t * *pwsFontName, wchar_t * *pwsFontPath, double *pdFontSize, int *pnFontStyle)
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{
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if (nTextIndex < 0 || nTextIndex >= m_nTextsCount)
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return NULL;
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*pdX = m_pTexts[nTextIndex].dX;
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*pdY = m_pTexts[nTextIndex].dY;
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*pdWidth = m_pTexts[nTextIndex].dWidth;
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*pdHeight = m_pTexts[nTextIndex].dHeight;
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*pdBaseLineOffset = m_pTexts[nTextIndex].dBaseLineOffset;
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*pwsFontName = m_pTexts[nTextIndex].wsFontName;
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*pwsFontPath = m_pTexts[nTextIndex].wsFontPath;
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*pdFontSize = m_pTexts[nTextIndex].dFontSize;
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*pnFontStyle = m_pTexts[nTextIndex].nFontStyle;
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return m_pTexts[nTextIndex].wsText;
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}
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double *GetMatrix(int nTextIndex)
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{
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if (nTextIndex < 0 || nTextIndex >= m_nTextsCount)
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return NULL;
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return m_pMatrix[nTextIndex].ToDoublePointer();
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}
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bool IsEqual(GfxTextClip *pClip)
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{
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if (pClip->m_nTextsCount != m_nTextsCount)
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return false;
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for (int nIndex = 0; nIndex < m_nTextsCount; nIndex++)
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{
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if (!m_pTexts[nIndex].IsEqual(pClip->m_pTexts[nIndex]) ||
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!m_pMatrix[nIndex].IsEqual(pClip->m_pMatrix[nIndex]))
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return false;
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}
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return true;
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}
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public:
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GfxTextClip(GfxTextClip *pTextClip)
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{
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m_nTextsCount = pTextClip->m_nTextsCount;
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m_nSize = pTextClip->m_nSize;
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m_pTexts = (Text *) PdfReader::MemUtilsMallocArray(m_nSize, sizeof(Text));
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m_pMatrix = (Matrix *) PdfReader::MemUtilsMallocArray(m_nSize, sizeof(Matrix));
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for (int nIndex = 0; nIndex < m_nTextsCount; ++nIndex)
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{
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m_pTexts[nIndex].wsText = AllocWString(pTextClip->m_pTexts[nIndex].wsText);
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m_pTexts[nIndex].dX = pTextClip->m_pTexts[nIndex].dX;
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m_pTexts[nIndex].dY = pTextClip->m_pTexts[nIndex].dY;
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m_pTexts[nIndex].dWidth = pTextClip->m_pTexts[nIndex].dWidth;
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m_pTexts[nIndex].dHeight = pTextClip->m_pTexts[nIndex].dHeight;
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m_pTexts[nIndex].dBaseLineOffset = pTextClip->m_pTexts[nIndex].dBaseLineOffset;
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m_pTexts[nIndex].wsFontName = AllocWString(pTextClip->m_pTexts[nIndex].wsFontName);
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m_pTexts[nIndex].wsFontPath = AllocWString(pTextClip->m_pTexts[nIndex].wsFontPath);
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m_pTexts[nIndex].dFontSize = pTextClip->m_pTexts[nIndex].dFontSize;
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m_pTexts[nIndex].nFontStyle = pTextClip->m_pTexts[nIndex].nFontStyle;
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m_pMatrix[nIndex] = pTextClip->m_pMatrix[nIndex];
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}
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}
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void Resize(int nTextsCount)
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{
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if (m_nTextsCount + nTextsCount > m_nSize)
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{
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if (m_nSize == 0)
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{
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m_nSize = 32;
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}
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while (m_nSize < m_nTextsCount + nTextsCount)
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{
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m_nSize *= 2;
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}
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m_pTexts = (Text *) PdfReader::MemUtilsReallocArray(m_pTexts, m_nSize, sizeof(Text), m_nTextsCount);
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m_pMatrix = (Matrix *) PdfReader::MemUtilsReallocArray(m_pMatrix, m_nSize, sizeof(Matrix), m_nTextsCount);
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if (NULL == m_pTexts)
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m_pTexts = (Text *) PdfReader::MemUtilsMallocArray(m_nSize, sizeof(Text));
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else
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m_pTexts = (Text *) PdfReader::MemUtilsReallocArray(m_pTexts, m_nSize, sizeof(Text), m_nTextsCount);
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if (NULL == m_pMatrix)
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m_pMatrix = (Matrix *) PdfReader::MemUtilsMallocArray(m_nSize, sizeof(Matrix));
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else
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m_pMatrix = (Matrix *) PdfReader::MemUtilsReallocArray(m_pMatrix, m_nSize, sizeof(Matrix), m_nTextsCount);
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}
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}
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void Transform(double *pMatrix, double dX, double dY, double *pdX, double *pdY)
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{
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*pdX = dX * pMatrix[0] + dY * pMatrix[2] + pMatrix[4];
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*pdY = dX * pMatrix[1] + dY * pMatrix[3] + pMatrix[5];
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}
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private:
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#pragma pack(push, 1)
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struct Matrix
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{
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double dA;
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double dB;
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double dC;
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double dD;
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double dE;
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double dF;
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double *ToDoublePointer()
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{
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return &dA;
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}
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void FromDoublePointer(double *pMatrix)
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{
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dA = pMatrix[0];
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dB = pMatrix[1];
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dC = pMatrix[2];
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dD = pMatrix[3];
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dE = pMatrix[4];
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dF = pMatrix[5];
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}
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bool IsEqual(Matrix &oMatrix)
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{
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if (fabs(dA - oMatrix.dA) < 0.001 && fabs(dB - oMatrix.dB) < 0.001 && fabs(dC - oMatrix.dC) < 0.001 &&
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fabs(dD - oMatrix.dD) < 0.001 && fabs(dE - oMatrix.dE) < 0.001 && fabs(dF - oMatrix.dF) < 0.001)
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return true;
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return false;
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}
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};
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struct Text
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{
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wchar_t * wsFontName;
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wchar_t * wsFontPath;
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double dFontSize;
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int nFontStyle;
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wchar_t * wsText;
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double dX;
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double dY;
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double dWidth;
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double dHeight;
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double dBaseLineOffset;
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bool IsEqual(Text &oText)
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{
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if (fabs(dX - oText.dX) < 0.001 && fabs(dY - oText.dY) < 0.001 && fabs(dWidth - oText.dWidth) < 0.001 &&
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fabs(dHeight - oText.dHeight) < 0.001 && fabs(dBaseLineOffset - oText.dBaseLineOffset) < 0.001 &&
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std::wstring(wsText) == std::wstring(oText.wsText))
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return true;
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return false;
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}
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};
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#pragma pack(pop)
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private:
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Text *m_pTexts;
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Matrix *m_pMatrix;
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int m_nTextsCount;
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int m_nSize;
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static wchar_t* AllocWString(const std::wstring& wsString)
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{
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int nLen = wsString.length();
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wchar_t *wsResult = new wchar_t[nLen + 1];
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wsResult[nLen] = 0x0000;
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for (int nIndex = 0; nIndex < nLen; nIndex++)
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{
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wsResult[nIndex] = (wchar_t)wsString.at(nIndex);
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}
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return wsResult;
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}
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static wchar_t* AllocWString(const wchar_t* wsString)
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{
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return AllocWString(std::wstring(wsString));
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}
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static wchar_t* AllocWString(wchar_t* wsString)
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{
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return AllocWString(std::wstring(wsString));
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}
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static void FreeWString(wchar_t* wString)
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{
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if (wString)
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delete[] wString;
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}
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};
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class GfxClip
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{
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public:
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GfxClip()
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{
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}
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~GfxClip()
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{
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for (int i = 0; i < m_vPaths.size(); ++i)
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RELEASEOBJECT(m_vPaths[i]);
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}
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void AddPath(GfxPath *pPath, double *Matrix, int nFlag)
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{
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if (pPath && Matrix)
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{
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m_vPaths.push_back(pPath->copy());
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m_vMatrix.push_back(GfxClipMatrix());
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m_vMatrix.back().FromDoublePointer(Matrix);
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m_vPathsClipFlag.push_back(nFlag);
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}
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}
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size_t GetPathNum()
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{
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return m_vPaths.size();
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}
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GfxPath *GetPath(int i)
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{
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return m_vPaths[i];
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}
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int GetClipFlag(int i)
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{
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return m_vPathsClipFlag[i];
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}
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bool IsChanged()
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{
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return m_bChanged;
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}
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void SetChanged(bool b)
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{
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m_bChanged = b;
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}
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std::vector<GfxClipMatrix> m_vMatrix;
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private:
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std::vector<GfxPath *> m_vPaths;
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std::vector<int> m_vPathsClipFlag;
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bool m_bChanged;
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};
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#endif //CORE_GRCLIP_H
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