mirror of https://github.com/vitalif/openscad
121 lines
3.6 KiB
C++
121 lines
3.6 KiB
C++
/*
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* OpenSCAD (www.openscad.org)
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* Copyright (C) 2009-2011 Clifford Wolf <clifford@clifford.at> and
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* Marius Kintel <marius@kintel.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* As a special exception, you have permission to link this program
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* with the CGAL library and distribute executables, as long as you
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* follow the requirements of the GNU GPL in regard to all of the
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* software in the executable aside from CGAL.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#pragma once
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#include <map>
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#include <string>
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#include <iostream>
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#include <time.h>
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_TRUETYPE_IDS_H
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#include <vector>
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#include <string>
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#include <fontconfig/fontconfig.h>
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#include <hb.h>
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#include <hb-ft.h>
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class FontInfo {
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public:
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FontInfo(const std::string &family, const std::string &style, const std::string &file);
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virtual ~FontInfo();
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const std::string &get_family() const;
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const std::string &get_style() const;
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const std::string &get_file() const;
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bool operator<(const FontInfo &rhs) const;
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private:
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std::string family;
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std::string style;
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std::string file;
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};
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typedef std::vector<FontInfo> FontInfoList;
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/**
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* Slow call of the font cache initialization. This is separated here so it
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* can be passed to the GUI to run in a separate thread while showing a
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* progress dialog.
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*/
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class FontCacheInitializer {
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public:
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FontCacheInitializer(FcConfig *config) : config(config) { }
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void run() { FcConfigBuildFonts(config); }
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private:
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FcConfig *config;
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};
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class FontCache {
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public:
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const static std::string DEFAULT_FONT;
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const static unsigned int MAX_NR_OF_CACHE_ENTRIES = 3;
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FontCache();
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virtual ~FontCache();
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bool is_init_ok() const;
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FT_Face get_font(const std::string &font);
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bool is_windows_symbol_font(const FT_Face &face) const;
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void register_font_file(const std::string &path);
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void clear();
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FontInfoList *list_fonts() const;
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static FontCache *instance();
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typedef void (InitHandlerFunc)(FontCacheInitializer *initializer, void *userdata);
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static void registerProgressHandler(InitHandlerFunc *handler, void *userdata = NULL);
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private:
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typedef std::pair<FT_Face, time_t> cache_entry_t;
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typedef std::map<std::string, cache_entry_t> cache_t;
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static FontCache *self;
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static InitHandlerFunc *cb_handler;
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static void *cb_userdata;
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static void defaultInitHandler(FontCacheInitializer *delegate, void *userdata);
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bool init_ok;
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cache_t cache;
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FcConfig *config;
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FT_Library library;
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void check_cleanup();
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void dump_cache(const std::string &info);
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void add_font_dir(const std::string &path);
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void init_pattern(FcPattern *pattern) const;
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FT_Face find_face(const std::string &font) const;
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FT_Face find_face_fontconfig(const std::string &font) const;
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bool try_charmap(FT_Face face, int platform_id, int encoding_id) const;
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};
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