fontutil

package
v1.3.13 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: May 12, 2026 License: MIT Imports: 13 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var CarriageReturnRune = '␍' // C/R symbol: '␍'; old: '♪'
View Source 
var DefaultFaceOptions = NewFaceOptions(12, 72)
View Source 
var FontsMan = NewFontsManager()
View Source 
var TabWidth = 8 // n times the space glyph

Functions

func Fixed266ToFloat64 

func Fixed266ToFloat64(v fixed.Int26_6) float64

func Float32ToFixed266 

func Float32ToFixed266(v float32) fixed.Int26_6

func Float64ToFixed266 

func Float64ToFixed266(v float64) fixed.Int26_6

func NewFallbackFaces added in v1.3.13 

func NewFallbackFaces(fallbackFont *Font, fopts FaceOptions) []font.Face

func NewKernCache 

func NewKernCache(face font.Face, r0, r1 rune) fixed.Int26_6

func Rect266MinFloorMaxCeil 

func Rect266MinFloorMaxCeil(r fixed.Rectangle26_6) image.Rectangle

Types

type FaceCache 

type FaceCache struct {
	font.Face
	// contains filtered or unexported fields
}

func NewFaceCache 

func NewFaceCache(face font.Face) *FaceCache

func (*FaceCache) Glyph 

func (fc *FaceCache) Glyph(dot fixed.Point26_6, ru rune) (
	dr image.Rectangle,
	mask image.Image,
	maskp image.Point,
	advance fixed.Int26_6,
	ok bool,
)

func (*FaceCache) GlyphAdvance 

func (fc *FaceCache) GlyphAdvance(ru rune) (advance fixed.Int26_6, ok bool)

func (*FaceCache) GlyphBounds 

func (fc *FaceCache) GlyphBounds(ru rune) (bounds fixed.Rectangle26_6, advance fixed.Int26_6, ok bool)

func (*FaceCache) Kern 

func (fc *FaceCache) Kern(r0, r1 rune) fixed.Int26_6

type FaceCacheL 

type FaceCacheL struct {
	font.Face
	// contains filtered or unexported fields
}

Same as FaceCache but with locks.

func NewFaceCacheL 

func NewFaceCacheL(face font.Face) *FaceCacheL

func (*FaceCacheL) Glyph 

func (fc *FaceCacheL) Glyph(dot fixed.Point26_6, ru rune) (
	dr image.Rectangle,
	mask image.Image,
	maskp image.Point,
	advance fixed.Int26_6,
	ok bool,
)

func (*FaceCacheL) GlyphAdvance 

func (fc *FaceCacheL) GlyphAdvance(ru rune) (advance fixed.Int26_6, ok bool)

func (*FaceCacheL) GlyphBounds 

func (fc *FaceCacheL) GlyphBounds(ru rune) (bounds fixed.Rectangle26_6, advance fixed.Int26_6, ok bool)

func (*FaceCacheL) Kern 

func (fc *FaceCacheL) Kern(r0, r1 rune) fixed.Int26_6

type FaceCacheL2 

type FaceCacheL2 struct {
	font.Face
	// contains filtered or unexported fields
}

Same as FaceCacheL but with sync.map.

func NewFaceCacheL2 

func NewFaceCacheL2(face font.Face) *FaceCacheL2

func (*FaceCacheL2) Glyph 

func (fc *FaceCacheL2) Glyph(dot fixed.Point26_6, ru rune) (
	dr image.Rectangle,
	mask image.Image,
	maskp image.Point,
	advance fixed.Int26_6,
	ok bool,
)

func (*FaceCacheL2) GlyphAdvance 

func (fc *FaceCacheL2) GlyphAdvance(ru rune) (advance fixed.Int26_6, ok bool)

func (*FaceCacheL2) GlyphBounds 

func (fc *FaceCacheL2) GlyphBounds(ru rune) (bounds fixed.Rectangle26_6, advance fixed.Int26_6, ok bool)

func (*FaceCacheL2) Kern 

func (fc *FaceCacheL2) Kern(r0, r1 rune) fixed.Int26_6

type FaceFallback added in v1.3.13 

type FaceFallback struct {
	font.Face

	IsMono  bool
	MonoAdv fixed.Int26_6
	// contains filtered or unexported fields
}

func NewFaceFallback added in v1.3.13 

func NewFaceFallback(face font.Face, fallbackFaces []font.Face, isMono bool, monoAdv fixed.Int26_6) *FaceFallback

func (*FaceFallback) Glyph added in v1.3.13 

func (ff *FaceFallback) Glyph(dot fixed.Point26_6, ru rune) (
	dr image.Rectangle,
	mask image.Image,
	maskp image.Point,
	advance fixed.Int26_6,
	ok bool,
)

func (*FaceFallback) GlyphAdvance added in v1.3.13 

func (ff *FaceFallback) GlyphAdvance(ru rune) (advance fixed.Int26_6, ok bool)

func (*FaceFallback) GlyphBounds added in v1.3.13 

func (ff *FaceFallback) GlyphBounds(ru rune) (bounds fixed.Rectangle26_6, advance fixed.Int26_6, ok bool)

func (*FaceFallback) Kern added in v1.3.13 

func (ff *FaceFallback) Kern(r0, r1 rune) fixed.Int26_6

type FaceOptions added in v1.3.13 

type FaceOptions struct {
	// contains filtered or unexported fields
}

avoid zero value in size/dpi by forcing set funcs; use existing copies

func NewFaceOptions added in v1.3.13 

func NewFaceOptions(size, dpi float64) FaceOptions

func (*FaceOptions) DPI added in v1.3.13 

func (o *FaceOptions) DPI() float64

func (*FaceOptions) SetDPI added in v1.3.13 

func (o *FaceOptions) SetDPI(v float64)

func (*FaceOptions) SetHinting added in v1.3.13 

func (o *FaceOptions) SetHinting(h font.Hinting)

func (*FaceOptions) SetSize added in v1.3.13 

func (o *FaceOptions) SetSize(v float64)

func (*FaceOptions) Size added in v1.3.13 

func (o *FaceOptions) Size() float64

type FaceRunes 

type FaceRunes struct {
	font.Face
}

Special runes face

func NewFaceRunes 

func NewFaceRunes(face font.Face) *FaceRunes

func (*FaceRunes) Glyph 

func (fr *FaceRunes) Glyph(dot fixed.Point26_6, ru rune) (
	dr image.Rectangle,
	mask image.Image,
	maskp image.Point,
	advance fixed.Int26_6,
	ok bool,
)

func (*FaceRunes) GlyphAdvance 

func (fr *FaceRunes) GlyphAdvance(ru rune) (advance fixed.Int26_6, ok bool)

func (*FaceRunes) GlyphBounds 

func (fr *FaceRunes) GlyphBounds(ru rune) (bounds fixed.Rectangle26_6, advance fixed.Int26_6, ok bool)

type Font 

type Font struct {
	Font *sfnt.Font

	SrcName string
	// contains filtered or unexported fields
}

func NewFont 

func NewFont(fm *FontsManager, ttf []byte, srcName string) (*Font, error)

func (*Font) ClearFacesCache 

func (f *Font) ClearFacesCache()

func (*Font) FontFace 

func (f *Font) FontFace(fopts FaceOptions) *FontFace

func (*Font) Name added in v1.3.13 

func (f *Font) Name() string

func (*Font) NameID added in v1.3.13 

func (f *Font) NameID() string

type FontFace 

type FontFace struct {
	Font    *Font
	Face    font.Face
	Opts    FaceOptions // readonly, make copy and change
	Metrics *font.Metrics
	// contains filtered or unexported fields
}

func NewFontFace 

func NewFontFace(font *Font, fopts FaceOptions) *FontFace

func (*FontFace) AvgGlyphAdvance added in v1.3.13 

func (ff *FontFace) AvgGlyphAdvance() fixed.Int26_6

func (*FontFace) BaseLine 

func (ff *FontFace) BaseLine() fixed.Point26_6

func (*FontFace) LineHeight 

func (ff *FontFace) LineHeight() fixed.Int26_6

func (*FontFace) LineHeightFloat 

func (ff *FontFace) LineHeightFloat() float64

func (*FontFace) LineHeightInt 

func (ff *FontFace) LineHeightInt() int

func (*FontFace) TestIsMono added in v1.3.13 

func (ff *FontFace) TestIsMono() bool

type FontsManager 

type FontsManager struct {
	// contains filtered or unexported fields
}

func NewFontsManager 

func NewFontsManager() *FontsManager

func (*FontsManager) AddFallbackFont added in v1.3.13 

func (fm *FontsManager) AddFallbackFont(f *Font)

func (*FontsManager) Aliases added in v1.3.13 

func (fm *FontsManager) Aliases(targetName string) []string

func (*FontsManager) ClearFontsCache 

func (fm *FontsManager) ClearFontsCache()

func (*FontsManager) DefaultFont added in v1.3.13 

func (fm *FontsManager) DefaultFont() *Font

func (*FontsManager) DefaultFontFace added in v1.3.13 

func (fm *FontsManager) DefaultFontFace() *FontFace

func (*FontsManager) DefaultMonoFont added in v1.3.13 

func (fm *FontsManager) DefaultMonoFont() *Font

func (*FontsManager) DefaultMonoFontFace added in v1.3.13 

func (fm *FontsManager) DefaultMonoFontFace() *FontFace

func (*FontsManager) FallbackFonts added in v1.3.13 

func (fm *FontsManager) FallbackFonts() []*Font

func (*FontsManager) Font 

func (fm *FontsManager) Font(ttf []byte, srcName string) (*Font, error)

func (*FontsManager) FontByName added in v1.3.13 

func (fm *FontsManager) FontByName(name string) *Font

func (*FontsManager) LoadedFonts added in v1.3.13 

func (fm *FontsManager) LoadedFonts() []*Font

func (*FontsManager) RegisterAlias added in v1.3.13 

func (fm *FontsManager) RegisterAlias(alias, targetName string)

type GlyphAdvanceCache 

type GlyphAdvanceCache struct {
	// contains filtered or unexported fields
}

func NewGlyphAdvanceCache 

func NewGlyphAdvanceCache(face font.Face, ru rune) *GlyphAdvanceCache

type GlyphBoundsCache 

type GlyphBoundsCache struct {
	// contains filtered or unexported fields
}

func NewGlyphBoundsCache 

func NewGlyphBoundsCache(face font.Face, ru rune) *GlyphBoundsCache

type GlyphCache 

type GlyphCache struct {
	// contains filtered or unexported fields
}

func NewGlyphCache 

func NewGlyphCache(face font.Face, ru rune) *GlyphCache

Source Files

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