131 lines
4.3 KiB
C++
131 lines
4.3 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2021 Ola Rinta-Koski
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* Copyright (C) 2021-2022 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef KICAD_FONTCONFIG_H
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#define KICAD_FONTCONFIG_H
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#include <fontconfig/fontconfig.h>
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#include <kicommon.h>
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#include <wx/string.h>
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#include <vector>
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#include <map>
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#include <unordered_map>
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#include <font/fontinfo.h>
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class REPORTER;
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namespace fontconfig
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{
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struct FONTCONFIG_PAT;
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class KICOMMON_API FONTCONFIG
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{
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public:
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FONTCONFIG();
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static wxString Version();
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enum class FF_RESULT
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{
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FF_OK,
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FF_ERROR,
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FF_SUBSTITUTE,
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FF_MISSING_BOLD,
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FF_MISSING_ITAL,
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FF_MISSING_BOLD_ITAL
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};
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/**
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* Given a fully-qualified font name ("Times:Bold:Italic") find the closest matching font
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* and return its filepath in \a aFontFile.
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*
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* A return value of false indicates a serious error in the font system.
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*/
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FF_RESULT FindFont( const wxString& aFontName, wxString& aFontFile, int& aFaceIndex, bool aBold, bool aItalic );
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/**
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* List the current available font families.
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*
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* @param aDesiredLang The desired language of font name to report back if available, otherwise it will fallback
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*/
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void ListFonts( std::vector<std::string>& aFonts, const std::string& aDesiredLang );
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/**
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* Set the reporter to use for reporting font substitution warnings.
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*
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* @param aReporter The reporter to use for reporting font substitution warnings.
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*/
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static void SetReporter( REPORTER* aReporter );
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private:
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std::map<std::string, FONTINFO> m_fontInfoCache;
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wxString m_fontCacheLastLang;
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static REPORTER* s_reporter;
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/**
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* Matches the two rfc 3306 language entries, used for when searching for matching family names
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*
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* The overall logic is simple, either both language tags matched exactly or one tag is "single" level
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* that the other language tag contains.
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* There's nuances to language tags beyond this but font tags will most likely never be more complex than
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* say "zh-CN" or single tag "en".
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*
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* @param aSearchLang the language being searched for
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* @param aSupportedLang the language being offered
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*/
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bool isLanguageMatch( const wxString& aSearchLang, const wxString& aSupportedLang );
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/**
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* Gets a list of all family name strings maped to lang
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*
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* @param aPat reference to FcPattern container
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* @param aFamStringMap Map to be populated with key, value pairs representing lang to family name
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*/
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void getAllFamilyStrings( FONTCONFIG_PAT& aPat,
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std::unordered_map<std::string, std::string>& aFamStringMap );
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/**
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* Gets a family name based on desired language.
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* This will fallback to english or first available string if no language matching string is found.
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*
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* @param aPat reference to FcPattern container
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* @param aDesiredLang Language to research for (RFC3066 format)
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*/
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std::string getFamilyStringByLang( FONTCONFIG_PAT& APat, const wxString& aDesiredLang );
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/**
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* Wrapper of FcPatternGetString to return a std::string
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*
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* @param aPat reference to FcPattern container
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* @param aObj The fontconfig property object like FC_FAMILY, FC_STYLE, etc
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* @param aIdx The ith value associated with the property object
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*/
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std::string getFcString( FONTCONFIG_PAT& aPat, const char* aObj, int aIdx );
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};
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} // namespace fontconfig
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KICOMMON_API fontconfig::FONTCONFIG* Fontconfig();
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#endif //KICAD_FONTCONFIG_H
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