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Diffstat (limited to 'vcl/inc/unx/fontmanager.hxx')
| -rw-r--r-- | vcl/inc/unx/fontmanager.hxx | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/vcl/inc/unx/fontmanager.hxx b/vcl/inc/unx/fontmanager.hxx new file mode 100644 index 0000000000..d39795dfa4 --- /dev/null +++ b/vcl/inc/unx/fontmanager.hxx @@ -0,0 +1,204 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#include <sal/config.h> + +#include <o3tl/sorted_vector.hxx> +#include <tools/fontenum.hxx> +#include <vcl/dllapi.h> +#include <vcl/timer.hxx> +#include <com/sun/star/lang/Locale.hpp> +#include <unx/fc_fontoptions.hxx> + +#include <font/PhysicalFontFace.hxx> + +#include <set> +#include <memory> +#include <string_view> +#include <vector> +#include <unordered_map> + +/* + * some words on metrics: every length returned by PrintFontManager and + * friends are PostScript afm style, that is they are 1/1000 font height + */ + +class FontAttributes; +class FontConfigFontOptions; +namespace vcl::font +{ +class FontSelectPattern; +} +namespace vcl { struct NameRecord; } +class GenericUnixSalData; + +namespace psp { +class PPDParser; + +typedef int fontID; + +// a class to manage printable fonts + +class VCL_PLUGIN_PUBLIC PrintFontManager +{ + struct PrintFont; + friend struct PrintFont; + + struct VCL_DLLPRIVATE PrintFont + { + FontAttributes m_aFontAttributes; + + int m_nDirectory; // atom containing system dependent path + OString m_aFontFile; // relative to directory + int m_nCollectionEntry; // 0 for regular fonts, 0 to ... for fonts stemming from collections + int m_nVariationEntry; // 0 for regular fonts, 0 to ... for fonts stemming from font variations + + explicit PrintFont(); + }; + + fontID m_nNextFontID; + std::unordered_map< fontID, PrintFont > m_aFonts; + // for speeding up findFontFileID + std::unordered_map< OString, o3tl::sorted_vector< fontID > > + m_aFontFileToFontID; + + std::unordered_map< OString, int > + m_aDirToAtom; + std::unordered_map< int, OString > m_aAtomToDir; + int m_nNextDirAtom; + + OString getFontFile(const PrintFont& rFont) const; + + std::vector<PrintFont> analyzeFontFile(int nDirID, const OString& rFileName, const char *pFormat=nullptr) const; + bool analyzeSfntFile(PrintFont& rFont) const; + // finds the font id for the nFaceIndex face in this font file + // There may be multiple font ids for font collections + fontID findFontFileID(int nDirID, const OString& rFile, int nFaceIndex, int nVariationIndex) const; + + // There may be multiple font ids for font collections + std::vector<fontID> findFontFileIDs( int nDirID, const OString& rFile ) const; + + static FontFamily matchFamilyName( std::u16string_view rFamily ); + + OString getDirectory( int nAtom ) const; + int getDirectoryAtom( const OString& rDirectory ); + + /* try to initialize fonts from libfontconfig + + called from <code>initialize()</code> + */ + static void initFontconfig(); + void countFontconfigFonts(); + /* deinitialize fontconfig + */ + static void deinitFontconfig(); + + /* register an application specific font directory for libfontconfig + + since fontconfig is asked for font substitutes before OOo will check for font availability + and fontconfig will happily substitute fonts it doesn't know (e.g. "Arial Narrow" -> "DejaVu Sans Book"!) + it becomes necessary to tell the library about all the hidden font treasures + */ + static void addFontconfigDir(const OString& rDirectory); + + /* register an application specific font file for libfontconfig */ + static void addFontconfigFile(const OString& rFile); + + std::set<OString> m_aPreviousLangSupportRequests; + std::vector<OUString> m_aCurrentRequests; + Timer m_aFontInstallerTimer; + + DECL_DLLPRIVATE_LINK( autoInstallFontLangSupport, Timer*, void ); + PrintFontManager(); +public: + ~PrintFontManager(); + friend class ::GenericUnixSalData; + static PrintFontManager& get(); // one instance only + + // There may be multiple font ids for font collections + std::vector<fontID> addFontFile( std::u16string_view rFileUrl ); + + void initialize(); + + const PrintFont* getFont( fontID nID ) const + { + auto it = m_aFonts.find( nID ); + return it == m_aFonts.end() ? nullptr : &it->second; + } + + // returns the ids of all managed fonts. + void getFontList( std::vector< fontID >& rFontIDs ); + + // routines to get font info in small pieces + + // get a specific fonts system dependent filename + OString getFontFileSysPath( fontID nFontID ) const + { + return getFontFile( *getFont( nFontID ) ); + } + + // get the ttc face number + int getFontFaceNumber( fontID nFontID ) const; + + // get the ttc face variation + int getFontFaceVariation( fontID nFontID ) const; + + // font administration functions + + /* system dependent font matching + + <p> + <code>matchFont</code> matches a pattern of font characteristics + and returns the closest match if possible. If a match was found + it will update rDFA to the found matching font. + </p> + <p> + implementation note: currently the function is only implemented + for fontconfig. + </p> + + @param rDFA + out of the FontAttributes structure the following + fields will be used for the match: + <ul> + <li>family name</li> + <li>italic</li> + <li>width</li> + <li>weight</li> + <li>pitch</li> + </ul> + + @param rLocale + if <code>rLocal</code> contains non empty strings the corresponding + locale will be used for font matching also; e.g. "Sans" can result + in different fonts in e.g. english and japanese + */ + bool matchFont(FontAttributes& rDFA, const css::lang::Locale& rLocale); + + static std::unique_ptr<FontConfigFontOptions> getFontOptions(const FontAttributes& rFontAttributes, int nSize); + + void Substitute(vcl::font::FontSelectPattern &rPattern, OUString& rMissingCodes); + +}; + +} // namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |