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/* -*- 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 <config_options.h>
#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 <glyphid.hxx>
#include <map>
#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 FontSubsetInfo;
class FontConfigFontOptions;
namespace vcl::font
{
class FontSelectPattern;
}
class GenericUnixSalData;
namespace psp {
class PPDParser;
typedef int fontID;
/*
* the difference between FastPrintFontInfo and PrintFontInfo
* is that the information in FastPrintFontInfo can usually
* be gathered from fontconfig results.
* if only FastPrintFontInfo is gathered and PrintFontInfo
* on demand and for less fonts, then performance in startup
* increases considerably
*/
struct FastPrintFontInfo
{
fontID m_nID; // FontID
// font attributes
OUString m_aFamilyName;
OUString m_aStyleName;
std::vector< OUString > m_aAliases;
FontFamily m_eFamilyStyle;
FontItalic m_eItalic;
FontWidth m_eWidth;
FontWeight m_eWeight;
FontPitch m_ePitch;
rtl_TextEncoding m_aEncoding;
FastPrintFontInfo()
: m_nID(0)
, m_eFamilyStyle(FAMILY_DONTKNOW)
, m_eItalic(ITALIC_DONTKNOW)
, m_eWidth(WIDTH_DONTKNOW)
, m_eWeight(WEIGHT_DONTKNOW)
, m_ePitch(PITCH_DONTKNOW)
, m_aEncoding(RTL_TEXTENCODING_DONTKNOW)
{}
};
struct PrintFontInfo : public FastPrintFontInfo
{
int m_nAscend;
int m_nDescend;
PrintFontInfo() :
FastPrintFontInfo(),
m_nAscend( 0 ),
m_nDescend( 0 )
{}
};
// a class to manage printable fonts
class VCL_PLUGIN_PUBLIC PrintFontManager
{
struct PrintFont;
friend struct PrintFont;
struct VCL_DLLPRIVATE PrintFont
{
// font attributes
OUString m_aFamilyName;
std::vector<OUString> m_aAliases;
OUString m_aPSName;
OUString m_aStyleName;
FontFamily m_eFamilyStyle;
FontItalic m_eItalic;
FontWidth m_eWidth;
FontWeight m_eWeight;
FontPitch m_ePitch;
rtl_TextEncoding m_aEncoding;
int m_nAscend;
int m_nDescend;
int m_nLeading;
int m_nXMin; // font bounding box
int m_nYMin;
int m_nXMax;
int m_nYMax;
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, std::set< 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;
static OUString convertSfntName( void* pNameRecord ); // actually a NameRecord* format font subsetting code
static void analyzeSfntFamilyName( void const * pTTFont, std::vector< OUString >& rnames ); // actually a TrueTypeFont* from font subsetting code
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 );
const PrintFont* getFont( fontID nID ) const
{
auto it = m_aFonts.find( nID );
return it == m_aFonts.end() ? nullptr : &it->second;
}
PrintFont* getFont( fontID nID )
{
auto it = m_aFonts.find( nID );
return it == m_aFonts.end() ? nullptr : &it->second;
}
static void fillPrintFontInfo(const PrintFont& rFont, FastPrintFontInfo& rInfo);
void fillPrintFontInfo( PrintFont& rFont, PrintFontInfo& rInfo ) const;
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);
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( const OUString& rFileUrl );
void initialize();
// returns the ids of all managed fonts.
void getFontList( std::vector< fontID >& rFontIDs );
// get font info for a specific font
bool getFontInfo( fontID nFontID, PrintFontInfo& rInfo ) const;
// get fast font info for a specific font
bool getFontFastInfo( fontID nFontID, FastPrintFontInfo& rInfo ) const;
// routines to get font info in small pieces
// get a specific fonts PSName name
OUString getPSName( fontID nFontID );
// get a specific fonts italic type
FontItalic getFontItalic( fontID nFontID ) const
{
const PrintFont* pFont = getFont( nFontID );
return pFont ? pFont->m_eItalic : ITALIC_DONTKNOW;
}
// get a specific fonts weight type
FontWeight getFontWeight( fontID nFontID ) const
{
const PrintFont* pFont = getFont( nFontID );
return pFont ? pFont->m_eWeight : WEIGHT_DONTKNOW;
}
// 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;
// get a specific fonts ascend
int getFontAscend( fontID nFontID );
// get a specific fonts descent
int getFontDescend( fontID nFontID );
// get a fonts glyph bounding box
void getFontBoundingBox( fontID nFont, int& xMin, int& yMin, int& xMax, int& yMax );
// creates a new font subset of an existing SFNT font
// returns true in case of success, else false
// nFont: the font to be subsetted
// rOutFile: the file to put the new subset into;
// must be a valid osl file URL
// pGlyphIDs: input array of glyph ids for new font
// pNewEncoding: the corresponding encoding in the new font
// pWidths: output array of widths of requested glyphs
// nGlyphs: number of glyphs in arrays
// pCapHeight:: capital height of the produced font
// pXMin, pYMin, pXMax, pYMax: outgoing font bounding box
// TODO: callers of this method should use its FontSubsetInfo counterpart directly
bool createFontSubset( FontSubsetInfo&,
fontID nFont,
const OUString& rOutFile,
const sal_GlyphId* pGlyphIDs,
const sal_uInt8* pNewEncoding,
sal_Int32* pWidths,
int nGlyphs
);
void getGlyphWidths( fontID nFont,
bool bVertical,
std::vector< sal_Int32 >& rWidths,
std::map< sal_Unicode, sal_uInt32 >& rUnicodeEnc );
// 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
the <code>FastPrintFontInfo</code> passed in as parameter
will be update to the found matching font.
</p>
<p>
implementation note: currently the function is only implemented
for fontconfig.
</p>
@param rInfo
out of the FastPrintFontInfo 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
*/
void matchFont( FastPrintFontInfo& rInfo, 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: */
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