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https://github.com/ONLYOFFICE/core.git
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137 lines
5.2 KiB
C++
137 lines
5.2 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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#pragma once
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#include "Types.h"
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namespace MathEquation
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{
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struct TMathFont;
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class MathEquation;
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class IOutputDev
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{
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public:
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// Start and end of equation
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virtual void BeginEquation() = 0;
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virtual void EndEquation() = 0;
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// Start and end of block.
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virtual void BeginBlock() = 0;
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virtual void EndBlock() = 0;
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// Set size in current block
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virtual void SetSize(_UINT16 nSize) = 0;
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// Add symbol. Various elements can be added to symbol. Strikethrough, accent, etc.
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virtual void BeginChar(unsigned short uChar, unsigned char nTypeFace, bool bSpecialSymbol) = 0;
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virtual void AddCharEmbel(MEMBELTYPE eType) = 0;
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virtual void EndChar() = 0;
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// Matrix. Number of blocks here equals nRows * nCol, sent sequentially in normal order (first row left to right, second row left to right, etc.)
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virtual void BeginMatrix(unsigned char nVAlign, MMATRIXHORALIGN eHorAlign, MMATRIXVERALIGN eVerAlign, bool bEqualRows, bool bEqualCols, unsigned char nRows, unsigned char nCols, unsigned char* pVerBorders, unsigned char* pHorBorders) = 0;
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virtual void EndMatrix () = 0;
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virtual void StartPile(unsigned char nHAlign, unsigned char nVAlign) = 0;
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virtual void EndPile() = 0;
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// Brackets with element inside
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virtual void BeginBrackets(MBRACKETSTYPE eType, bool bOpen, bool bClose) = 0;
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virtual void EndBrackets (MBRACKETSTYPE eType, bool bOpen, bool bClose) = 0;
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// Root. First block - base, second if present - degree.
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virtual void BeginRoot(bool bDegree) = 0;
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virtual void EndRoot () = 0;
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// Fractions. First block - numerator, second block - denominator.
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virtual void BeginFraction(MFRACTIONTYPES eType, bool bInline) = 0;
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virtual void EndFraction () = 0;
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// If bInline = true, then block sequence is Base, Sub, Sup
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// If bInline = false, then block sequence is Sub, Sup, Base
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virtual void BeginScript(MSCRIPTALIGN eAlign, bool bBase = false, bool bSup = false, bool bSub = false, bool bInline = true) = 0;
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virtual void EndScript () = 0;
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// Line above or below text
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virtual void BeginBar(MBARTYPE eType, bool bTop) = 0;
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virtual void EndBar () = 0;
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// Arrow with label above or below (differs from BeginBar/EndBar in that here arrow is main
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// object, and text is small label, while those functions are opposite)
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virtual void BeginArrow(MARROWTYPE eType, bool bTop) = 0;
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virtual void EndArrow () = 0;
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// Integrals. Block sequence is always following (if block present) Base, Sub, Sup
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virtual void BeginIntegral(MINTEGRALTYPE eType) = 0;
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virtual void EndIntegral () = 0;
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// Curly brace with text above/below object. First comes main object, then curly brace label.
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virtual void BeginVerticalBrace(bool bTop) = 0;
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virtual void EndVerticalBrace () = 0;
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// Sum, product, coproduct, union, intersection. Block sequence Base, Sub, Sup
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virtual void BeingNArray(MNARRAYTYPE eType) = 0;
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virtual void EndNArray () = 0;
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// Long division. With quotient or without. First always comes base, then quotient if present.
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virtual void BeginLongDivision(MLONGDIVISION eType) = 0;
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virtual void EndLongDivision () = 0;
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// < | > - this type of element
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virtual void BeginAngleBracketsWithSeparator(MANGLEBRACKETSWITHSEPARATORTYPE eType) = 0;
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virtual void EndAngleBracketsWithSeparator () = 0;
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void AddFont(unsigned char nTypeFace, std::string sName, bool bBold, bool bItalic)
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{
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TMathFont aFont;
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aFont.sName = sName;
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aFont.bBold = bBold;
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aFont.bItalic = bItalic;
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m_mFonts[nTypeFace] = aFont;
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}
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TMathFont* GetFont(unsigned char nTypeFace)
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{
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TFontMap::iterator itFind = m_mFonts.find(nTypeFace);
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if (itFind != m_mFonts.end())
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return &(itFind->second);
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return NULL;
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}
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protected:
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TFontMap m_mFonts;
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};
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}
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