font_unix.cpp File Reference

Functions related to font handling on Unix/Fontconfig. More...

#include "../../stdafx.h"
#include "../../misc/autorelease.hpp"
#include "../../debug.h"
#include "../../fontcache.h"
#include "../../string_func.h"
#include "../../strings_func.h"
#include "font_unix.h"
#include <fontconfig/fontconfig.h>
#include <ft2build.h>
#include <FT_FREETYPE_H>
#include "../../safeguards.h"

Go to the source code of this file.

Functions
static const FcChar8 *	ToFcString (const std::string &str)
	Get a FontConfig-style string from a std::string.
static const char *	FromFcString (const FcChar8 *str)
	Get a C-style string from a FontConfig-style string.
static std::tuple< std::string, std::string >	SplitFontFamilyAndStyle (std::string_view font_name)
	Split the font name into the font family and style.
FT_Error	GetFontByFaceName (std::string_view font_name, FT_Face *face)
	Load a freetype font face with the given font name.
static int	GetPreferredWeightDistance (int weight)
	Get distance between font weight and preferred font weights.
bool	FontConfigFindFallbackFont (FontCacheSettings *settings, const std::string &language_isocode, MissingGlyphSearcher *callback)

Variables
FT_Library	_ft_library

Detailed Description

Functions related to font handling on Unix/Fontconfig.

Definition in file font_unix.cpp.

Function Documentation

FontConfigFindFallbackFont()

bool FontConfigFindFallbackFont	(	FontCacheSettings *	settings,
		const std::string &	language_isocode,
		MissingGlyphSearcher *	callback
	)

Definition at line 142 of file font_unix.cpp.

FromFcString()

static const char * FromFcString ( const FcChar8 *  str )

static

Get a C-style string from a FontConfig-style string.

Parameters

str	String from FontConfig.

Returns

C-style string.

Definition at line 42 of file font_unix.cpp.

Referenced by GetFontByFaceName().

GetFontByFaceName()

FT_Error GetFontByFaceName	(	std::string_view	font_name,
		FT_Face *	face
	)

Load a freetype font face with the given font name.

Parameters

font_name	The name of the font to load.
face	The face that has been found.

Returns

The error we encountered.

Definition at line 70 of file font_unix.cpp.

References FromFcString(), SplitFontFamilyAndStyle(), StrEqualsIgnoreCase(), and ToFcString().

Referenced by FreeTypeFontCacheFactory::LoadFont().

GetPreferredWeightDistance()

static int GetPreferredWeightDistance ( int  weight )

static

Get distance between font weight and preferred font weights.

Parameters

weight

Font weight from FontConfig.

Returns

Distance from preferred weight, where lower values are preferred.

Definition at line 131 of file font_unix.cpp.

SplitFontFamilyAndStyle()

static std::tuple< std::string, std::string > SplitFontFamilyAndStyle ( std::string_view  font_name )

static

Split the font name into the font family and style.

These fields are separated by a comma, but the style does not necessarily need to exist.

Parameters

font_name

The font name.

Returns

The font family and style.

Definition at line 53 of file font_unix.cpp.

Referenced by GetFontByFaceName().

ToFcString()

static const FcChar8 * ToFcString ( const std::string &  str )

static

Get a FontConfig-style string from a std::string.

Parameters

str	String to be passed to FontConfig.

Returns

FontConfig-style string.

Definition at line 32 of file font_unix.cpp.

Referenced by GetFontByFaceName().

Variable Documentation

_ft_library

FT_Library _ft_library

extern

Definition at line 210 of file freetypefontcache.cpp.