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-/*************************************************************************
-** FontManager.hpp **
-** **
-** This file is part of dvisvgm -- a fast DVI to SVG converter **
-** Copyright (C) 2005-2021 Martin Gieseking <martin.gieseking@uos.de> **
-** **
-** This program is free software; you can redistribute it and/or **
-** modify it under the terms of the GNU General Public License as **
-** published by the Free Software Foundation; either version 3 of **
-** the License, or (at your option) any later version. **
-** **
-** This program is distributed in the hope that it will be useful, but **
-** WITHOUT ANY WARRANTY; without even the implied warranty of **
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
-** GNU General Public License for more details. **
-** **
-** You should have received a copy of the GNU General Public License **
-** along with this program; if not, see <http://www.gnu.org/licenses/>. **
-*************************************************************************/
-
-#ifndef FONTMANAGER_HPP
-#define FONTMANAGER_HPP
-
-#include <memory>
-#include <ostream>
-#include <set>
-#include <string>
-#include <stack>
-#include <unordered_map>
-#include <vector>
-#include "Color.hpp"
-#include "FontStyle.hpp"
-
-
-class FileFinder;
-class Font;
-class VirtualFont;
-
-/** This class provides methods for easy DVI font handling.
- * DVI and VF files use local font numbers to reference fonts. For SVG output
- * we need a single list with unique IDs of all physical fonts. Characters of
- * virtual fonts are completely replaced by their DVI description so they don't
- * appear anywhere in the output. */
-class FontManager {
- using Num2IdMap = std::unordered_map<uint32_t, int>;
- using Name2IdMap = std::unordered_map<std::string, int>;
- using VfNum2IdMap = std::unordered_map<const VirtualFont*, Num2IdMap>;
- using VfFirstFontNumMap = std::unordered_map<const VirtualFont*, uint32_t>;
- using VfFirstFontMap = std::unordered_map<const VirtualFont*, Font*>;
- using VfStack = std::stack<VirtualFont*>;
-
- public:
- static FontManager& instance ();
- int registerFont (uint32_t fontnum, const std::string &fontname, uint32_t checksum, double dsize, double scale);
- int registerFont (uint32_t fontnum, const std::string &fname, double ptsize, const FontStyle &style, Color color);
- int registerFont (uint32_t fontnum, std::string fname, int fontIndex, double ptsize, const FontStyle &style, Color color);
- Font* getFont (int n) const;
- Font* getFont (const std::string &name) const;
- Font* getFontById (int id) const;
- const VirtualFont* getVF () const;
- int fontID (int n) const;
- int fontID (const Font *font) const;
- int fontID (const std::string &name) const;
- int fontnum (int id) const;
- int vfFirstFontNum (const VirtualFont *vf) const;
- Font* vfFirstFont (const VirtualFont *vf) const;
- void enterVF (VirtualFont *vf);
- void leaveVF ();
- void assignVFChar (int c, std::vector<uint8_t> &&dvi);
- std::ostream& write (std::ostream &os, Font *font=nullptr, int level=0);
-
- protected:
- FontManager () =default;
-
- private:
- std::vector<std::unique_ptr<Font>> _fonts; ///< all registered Fonts
- Num2IdMap _num2id; ///< DVI font number -> fontID
- Name2IdMap _name2id; ///< fontname -> fontID
- VfNum2IdMap _vfnum2id;
- VfStack _vfStack; ///< stack of currently processed virtual fonts
- VfFirstFontNumMap _vfFirstFontNumMap; ///< VF -> local font number of first font defined in VF
- VfFirstFontMap _vfFirstFontMap; ///< VF -> first font defined
-};
-
-#endif