Why Go
- Case Studies
  
  Common problems companies solve with Go
- Use Cases
  
  Stories about how and why companies use Go
- Security
  
  How Go can help keep you secure by default
Learn
Docs
- Effective Go
  
  Tips for writing clear, performant, and idiomatic Go code
- Go User Manual
  
  A complete introduction to building software with Go
- Standard library
  
  Reference documentation for Go's standard library
- Release Notes
  
  Learn what's new in each Go release
Packages
Community
- Recorded Talks
  
  Videos from prior events
- Meetups
  
  Meet other local Go developers
- Conferences
  
  Learn and network with Go developers from around the world
- Go blog
  
  The Go project's official blog.
- Go project
  
  Get help and stay informed from Go
- Get connected

fontconfig

package

Go to main page

Versions in this module

v0

v0.0.5

Mar 4, 2026

v0.0.4

Feb 6, 2025

Changes in this version

type ExportedFamilySubstitution

+ Importance byte

v0.0.3

Apr 21, 2023

v0.0.2

Apr 28, 2022

Changes in this version

+ const CHARCELL

+ const DUAL

+ const HINT_FULL

+ const HINT_MEDIUM

+ const HINT_NONE

+ const HINT_SLIGHT

+ const LCD_DEFAULT

+ const LCD_LEGACY

+ const LCD_LIGHT

+ const LCD_NONE

+ const MONO

+ const MatchQuery

+ const MatchResult

+ const MatchScan

+ const PROPORTIONAL

+ const RGBA_BGR

+ const RGBA_NONE

+ const RGBA_RGB

+ const RGBA_UNKNOWN

+ const RGBA_VBGR

+ const RGBA_VRGB

+ const SLANT_ITALIC

+ const SLANT_OBLIQUE

+ const SLANT_ROMAN

+ const WEIGHT_BLACK

+ const WEIGHT_BOLD

+ const WEIGHT_BOOK

+ const WEIGHT_DEMIBOLD

+ const WEIGHT_DEMILIGHT

+ const WEIGHT_EXTRABLACK

+ const WEIGHT_EXTRABOLD

+ const WEIGHT_EXTRALIGHT

+ const WEIGHT_HEAVY

+ const WEIGHT_LIGHT

+ const WEIGHT_MEDIUM

+ const WEIGHT_NORMAL

+ const WEIGHT_REGULAR

+ const WEIGHT_SEMIBOLD

+ const WEIGHT_SEMILIGHT

+ const WEIGHT_THIN

+ const WEIGHT_ULTRABLACK

+ const WEIGHT_ULTRABOLD

+ const WEIGHT_ULTRALIGHT

+ const WIDTH_CONDENSED

+ const WIDTH_EXPANDED

+ const WIDTH_EXTRACONDENSED

+ const WIDTH_EXTRAEXPANDED

+ const WIDTH_NORMAL

+ const WIDTH_SEMICONDENSED

+ const WIDTH_SEMIEXPANDED

+ const WIDTH_ULTRACONDENSED

+ const WIDTH_ULTRAEXPANDED

+ var Identity = Matrix

+ var Standard = &Config

+ func DefaultFontDirs() ([]string, error)

+ func PartialScanFontDirectories(dirs ...string) ([]fonts.FaceDescription, error)

+ func WeightFromOT(otWeight float32) float32

+ func WeightToOT(fcWeight float32) float32

+ type Bool uint8

+ const DontCare

+ const False

+ const True

+ func (b Bool) String() string

+ type Charset struct

+ func (a Charset) Len() int

+ func (fcs *Charset) AddChar(r rune)

+ func (fcs *Charset) HasChar(r rune) bool

+ func (fcs Charset) Copy() Charset

+ func (fcs Charset) DelChar(r rune)

+ func (s Charset) String() string

+ type Config struct

+ func NewConfig() *Config

+ func (c *Config) Copy() *Config

+ func (config *Config) LoadFromDir(dir string) error

+ func (config *Config) LoadFromMemory(r io.Reader) error

+ func (config *Config) PrepareRender(pat, font Pattern) Pattern

+ func (config *Config) ScanFontDirectories(dirs ...string) (Fontset, error)

+ func (config *Config) ScanFontFile(path string) (Fontset, error)

+ func (config *Config) ScanFontRessource(content fonts.Resource, contentID string) (Fontset, error)

+ func (config *Config) Substitute(p, testPattern Pattern, kind matchKind)

+ type ExportedFamilySubstitution struct

+ AdditionalFamilies []string

+ Comment string

+ OpCode string

+ TestCode string

+ func GenerateSubstitution() ([]ExportedFamilySubstitution, error)

+ type Float float32

+ type FontFormat string

+ const PCF

+ const TrueType

+ const Type1

+ func ReadFontFile(file fonts.Resource) (fonts.Faces, FontFormat)

+ func (ff FontFormat) Loader() fonts.FontLoader

+ type Fontset []Pattern

+ func LoadFontset(src io.Reader) (Fontset, error)

+ func LoadFontsetFile(file string) (Fontset, error)

+ func ScanAndCache(fontsFileCache string) (Fontset, error)

+ func (fs Fontset) Serialize(dst io.Writer) error

+ func (set Fontset) List(p Pattern, objs ...Object) Fontset

+ func (set Fontset) Match(p Pattern, config *Config) Pattern

+ func (set Fontset) Sort(p Pattern, trim bool) (Fontset, Charset)

+ type Int int32

+ type Langset struct

+ func NewLangset(str string) Langset

+ func (ls Langset) Copy() Langset

+ func (ls Langset) String() string

+ type Matrix struct

+ Xx float32

+ Xy float32

+ Yx float32

+ Yy float32

+ func (a Matrix) Multiply(b Matrix) Matrix

+ type Object uint16

+ const ANTIALIAS

+ const ASPECT

+ const AUTOHINT

+ const CAPABILITY

+ const CHARSET

+ const CHARWIDTH

+ const CHAR_HEIGHT

+ const COLOR

+ const DECORATIVE

+ const DPI

+ const EMBEDDED_BITMAP

+ const EMBOLDEN

+ const FAMILY

+ const FAMILYLANG

+ const FILE

+ const FONTFORMAT

+ const FONTVERSION

+ const FONT_FEATURES

+ const FONT_HAS_HINT

+ const FONT_VARIATIONS

+ const FOUNDRY

+ const FULLNAME

+ const FULLNAMELANG

+ const FirstCustomObject

+ const GLOBAL_ADVANCE

+ const HASH

+ const HINTING

+ const HINT_STYLE

+ const INDEX

+ const LANG

+ const LCD_FILTER

+ const MATRIX

+ const MINSPACE

+ const NAMELANG

+ const ORDER

+ const OUTLINE

+ const PIXEL_SIZE

+ const POSTSCRIPT_NAME

+ const PRGNAME

+ const RASTERIZER

+ const RGBA

+ const SCALABLE

+ const SCALE

+ const SIZE

+ const SLANT

+ const SPACING

+ const STYLE

+ const STYLELANG

+ const SYMBOL

+ const VARIABLE

+ const VERTICAL_LAYOUT

+ const WEIGHT

+ const WIDTH

+ func (object Object) String() string

+ type Pattern map[Object]*valueList

+ func BuildPattern(elements ...PatternElement) Pattern

+ func NewPattern() Pattern

+ func (p Pattern) Add(object Object, value Value, appendMode bool)

+ func (p Pattern) AddBool(object Object, value bool)

+ func (p Pattern) AddFloat(object Object, value float32)

+ func (p Pattern) AddInt(object Object, value int32)

+ func (p Pattern) AddString(object Object, value string)

+ func (p Pattern) Del(object Object)

+ func (p Pattern) Duplicate() Pattern

+ func (p Pattern) FaceID() fonts.FaceID

+ func (p Pattern) Format() FontFormat

+ func (p Pattern) GetAt(object Object, id int) (Value, Result)

+ func (p Pattern) GetBool(object Object) (Bool, bool)

+ func (p Pattern) GetCharset(object Object) (Charset, bool)

+ func (p Pattern) GetFloat(object Object) (float32, bool)

+ func (p Pattern) GetFloats(object Object) []float32

+ func (p Pattern) GetInt(object Object) (int32, bool)

+ func (p Pattern) GetInts(object Object) []int32

+ func (p Pattern) GetMatrices(object Object) []Matrix

+ func (p Pattern) GetMatrix(object Object) (Matrix, bool)

+ func (p Pattern) GetString(object Object) (string, bool)

+ func (p Pattern) GetStrings(object Object) []string

+ func (p Pattern) Hash() string

+ func (p Pattern) String() string

+ func (pattern Pattern) SubstituteDefault()

+ type PatternElement struct

+ Object Object

+ Value Value

+ type Range struct

+ Begin float32

+ End float32

+ type Result uint8

+ const ResultMatch

+ const ResultNoId

+ const ResultNoMatch

+ const ResultTypeMismatch

+ type String string

+ type Value interface