fontconfig::FONTCONFIG Class Reference

#include <fontconfig.h>

Public Types
enum class	FF_RESULT {   FF_OK , FF_ERROR , FF_SUBSTITUTE , FF_MISSING_BOLD ,   FF_MISSING_ITAL , FF_MISSING_BOLD_ITAL }

Public Member Functions
	FONTCONFIG ()
FF_RESULT	FindFont (const wxString &aFontName, wxString &aFontFile, int &aFaceIndex, bool aBold, bool aItalic)
	Given a fully-qualified font name ("Times:Bold:Italic") find the closest matching font and return its filepath in aFontFile. More...
void	ListFonts (std::vector< std::string > &aFonts, const std::string &aDesiredLang)
	List the current available font families. More...

Static Public Member Functions
static wxString	Version ()

Private Member Functions
bool	isLanguageMatch (const wxString &aSearchLang, const wxString &aSupportedLang)
	Matches the two rfc 3306 language entries, used for when searching for matching family names. More...
void	getAllFamilyStrings (FONTCONFIG_PAT &aPat, std::unordered_map< std::string, std::string > &aFamStringMap)
	Gets a list of all family name strings maped to lang. More...
std::string	getFamilyStringByLang (FONTCONFIG_PAT &APat, const wxString &aDesiredLang)
	Gets a family name based on desired language. More...
std::string	getFcString (FONTCONFIG_PAT &aPat, const char *aObj, int aIdx)
	Wrapper of FcPatternGetString to return a std::string. More...

Private Attributes
std::map< std::string, FONTINFO >	m_fontInfoCache
wxString	m_fontCacheLastLang

Detailed Description

Definition at line 38 of file fontconfig.h.

Member Enumeration Documentation

FF_RESULT

enum class fontconfig::FONTCONFIG::FF_RESULT

strong

Enumerator
FF_OK
FF_ERROR
FF_SUBSTITUTE
FF_MISSING_BOLD
FF_MISSING_ITAL
FF_MISSING_BOLD_ITAL

Definition at line 45 of file fontconfig.h.

Constructor & Destructor Documentation

FONTCONFIG()

FONTCONFIG::FONTCONFIG

(

)

Definition at line 49 of file fontconfig.cpp.

Member Function Documentation

FindFont()

FONTCONFIG::FF_RESULT FONTCONFIG::FindFont	(	const wxString &	aFontName,
		wxString &	aFontFile,
		int &	aFaceIndex,
		bool	aBold,
		bool	aItalic
	)

Given a fully-qualified font name ("Times:Bold:Italic") find the closest matching font and return its filepath in aFontFile.

A return value of false indicates a serious error in the font system.

Definition at line 154 of file fontconfig.cpp.

References _, FF_ERROR, FF_MISSING_BOLD, FF_MISSING_BOLD_ITAL, FF_MISSING_ITAL, FF_OK, FF_SUBSTITUTE, and getAllFamilyStrings().

getAllFamilyStrings()

void FONTCONFIG::getAllFamilyStrings ( FONTCONFIG_PAT &  aPat, std::unordered_map< std::string, std::string > &  aFamStringMap  )

private

Gets a list of all family name strings maped to lang.

Parameters

aPat	reference to FcPattern container
aFamStringMap	Map to be populated with key, value pairs representing lang to family name

Definition at line 108 of file fontconfig.cpp.

References getFcString().

Referenced by FindFont(), and getFamilyStringByLang().

getFamilyStringByLang()

std::string FONTCONFIG::getFamilyStringByLang ( FONTCONFIG_PAT &  APat, const wxString &  aDesiredLang  )

private

Gets a family name based on desired language.

This will fallback to english or first available string if no language matching string is found.

Parameters

aPat	reference to FcPattern container
aDesiredLang	Language to research for (RFC3066 format)

Definition at line 131 of file fontconfig.cpp.

References From_UTF8(), getAllFamilyStrings(), and isLanguageMatch().

Referenced by ListFonts().

getFcString()

std::string FONTCONFIG::getFcString ( FONTCONFIG_PAT &  aPat, const char *  aObj, int  aIdx  )

private

Wrapper of FcPatternGetString to return a std::string.

Parameters

aPat	reference to FcPattern container
aObj	The fontconfig property object like FC_FAMILY, FC_STYLE, etc
aIdx	The ith value associated with the property object

Definition at line 96 of file fontconfig.cpp.

References fontconfig::FONTCONFIG_PAT::pat, and res.

Referenced by getAllFamilyStrings().

isLanguageMatch()

bool FONTCONFIG::isLanguageMatch ( const wxString &  aSearchLang, const wxString &  aSupportedLang  )

private

Matches the two rfc 3306 language entries, used for when searching for matching family names.

The overall logic is simple, either both language tags matched exactly or one tag is "single" level that the other language tag contains. There's nuances to language tags beyond this but font tags will most likely never be more complex than say "zh-CN" or single tag "en".

Parameters

aSearchLang	the language being searched for
aSupportedLang	the language being offered

Definition at line 66 of file fontconfig.cpp.

References wxStringSplit().

Referenced by getFamilyStringByLang().

ListFonts()

void FONTCONFIG::ListFonts	(	std::vector< std::string > &	aFonts,
		const std::string &	aDesiredLang
	)

List the current available font families.

Parameters

aDesiredLang

The desired language of font name to report back if available, otherwise it will fallback

Definition at line 293 of file fontconfig.cpp.

References From_UTF8(), getFamilyStringByLang(), m_fontCacheLastLang, m_fontInfoCache, and traceFonts.

Version()

wxString FONTCONFIG::Version ( )

static

Definition at line 43 of file fontconfig.cpp.

Referenced by KIFONT::VERSION_INFO::FontConfig().

Member Data Documentation

m_fontCacheLastLang

wxString fontconfig::FONTCONFIG::m_fontCacheLastLang

private

Definition at line 72 of file fontconfig.h.

Referenced by ListFonts().

m_fontInfoCache

std::map<std::string, FONTINFO> fontconfig::FONTCONFIG::m_fontInfoCache

private

Definition at line 71 of file fontconfig.h.

Referenced by ListFonts().

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The documentation for this class was generated from the following files:

• fontconfig.h
• fontconfig.cpp