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+/*************************************************************************
+** FontManager.h **
+** **
+** This file is part of dvisvgm -- the DVI to SVG converter **
+** Copyright (C) 2005-2010 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_H
+#define FONTMANAGER_H
+
+#include <map>
+#include <ostream>
+#include <set>
+#include <string>
+#include <stack>
+#include <vector>
+#include "types.h"
+
+
+class FileFinder;
+class Font;
+class TFM;
+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
+{
+ typedef std::map<UInt32,int> Num2IdMap;
+ typedef std::map<std::string,int> Name2IdMap;
+ typedef std::map<VirtualFont*,Num2IdMap> VfNum2IdMap;
+ typedef std::map<VirtualFont*, UInt32> VfFirstFontMap;
+ typedef std::stack<VirtualFont*> VfStack;
+
+ public:
+ ~FontManager ();
+ static FontManager& instance ();
+ int registerFont (UInt32 fontnum, std::string fontname, UInt32 checksum, double dsize, double scale);
+ Font* getFont (int n) const;
+ Font* getFont (const std::string &name) const;
+ Font* getFontById (int id) 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 (VirtualFont *vf) const;
+ void enterVF (VirtualFont *vf);
+ void leaveVF ();
+ void assignVfChar (int c, std::vector<UInt8> *dvi);
+ const std::vector<Font*>& getFonts () const {return _fonts;}
+ std::ostream& write (std::ostream &os, Font *font=0, int level=0);
+
+ protected:
+ FontManager () {}
+
+ private:
+ std::vector<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
+ VfFirstFontMap _vfFirstFontMap; ///< VF -> local font number of first font defined in VF
+};
+
+#endif