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Versions in this module

v1

v1.11.0

Jun 21, 2026

v1.10.0

Jun 14, 2026

Changes in this version

type GradientDirection

+ const GradientDiagonal

v1.9.0

Jun 3, 2026

Changes in this version

+ const FTFaceFlagColor — darwin/amd64, js/wasm, linux/amd64

+ const FTFixedPointShift — darwin/amd64, js/wasm, linux/amd64

+ const FTFixedPointUnit — darwin/amd64, js/wasm, linux/amd64

+ const FTLoadDefault — darwin/amd64, js/wasm, linux/amd64

+ const FTLoadForceAutohint — darwin/amd64, js/wasm, linux/amd64

+ const FTLoadMonochrome — darwin/amd64, js/wasm, linux/amd64

+ const FTLoadNoAutohint — darwin/amd64, js/wasm, linux/amd64

+ const FTLoadNoBitmap — darwin/amd64, js/wasm, linux/amd64

+ const FTLoadNoHinting — darwin/amd64, js/wasm, linux/amd64

+ const FTLoadNoScale — darwin/amd64, js/wasm, linux/amd64

+ const FTLoadRender — darwin/amd64, js/wasm, linux/amd64

+ const FTLoadTargetLCD

+ const FTLoadTargetLight

+ const FTLoadTargetMono

+ const FTLoadTargetNormal

+ const FTPixelModeBGRA — darwin/amd64, js/wasm, linux/amd64

+ const FTPixelModeGray — darwin/amd64, js/wasm, linux/amd64

+ const FTPixelModeLCD — darwin/amd64, js/wasm, linux/amd64

+ const FTPixelModeLCDV — darwin/amd64, js/wasm, linux/amd64

+ const FTPixelModeMono — darwin/amd64, js/wasm, linux/amd64

+ const FTPixelModeNone — darwin/amd64, js/wasm, linux/amd64

+ const FTRenderModeLCD — darwin/amd64, js/wasm, linux/amd64

+ const FTRenderModeLight — darwin/amd64, js/wasm, linux/amd64

+ const FTRenderModeMono — darwin/amd64, js/wasm, linux/amd64

+ const FTRenderModeNormal — darwin/amd64, js/wasm, linux/amd64

+ const FTStrokerLineCapRound — darwin/amd64, js/wasm, linux/amd64

+ const FTStrokerLineJoinRound — darwin/amd64, js/wasm, linux/amd64

+ const FTSubpixelUnit

+ const MaxFontSize

+ const MaxGlyphSize

+ const MaxTextLength

+ const MaxTextureDimension

+ const MinFontSize

+ const PangoGlyphUnknownFlag

+ const PangoScale — darwin/amd64, js/wasm, linux/amd64

+ const SubpixelBins

+ func CloseGDI() — windows/amd64

+ func FCConfigAppFontAddDir(dir string) bool — linux/amd64

+ func FCConfigAppFontAddFile(path string) bool — linux/amd64

+ func GetSelectedText(text string, cursor, anchor int) string

+ func IsDeadKey(r rune) bool

+ func PangoAttrBackgroundNew(r, g, b uint16) *C.PangoAttribute — linux/amd64

+ func PangoAttrFontDescNew(desc *C.PangoFontDescription) *C.PangoAttribute — linux/amd64

+ func PangoAttrFontFeaturesNew(features string) *C.PangoAttribute — linux/amd64

+ func PangoAttrForegroundNew(r, g, b uint16) *C.PangoAttribute — linux/amd64

+ func PangoAttrLetterSpacingNew(spacing int) *C.PangoAttribute — linux/amd64

+ func PangoAttrShapeNew(ink, logical *C.PangoRectangle) *C.PangoAttribute — linux/amd64

+ func PangoAttrStrikethroughNew(strikethrough bool) *C.PangoAttribute — linux/amd64

+ func PangoAttrUnderlineNew(style int) *C.PangoAttribute — linux/amd64

+ func PangoContextGetMetrics(ctx *C.PangoContext, desc *C.PangoFontDescription, lang *C.PangoLanguage) *C.PangoFontMetrics — linux/amd64

+ func PangoContextSetBaseGravity(ctx *C.PangoContext) — linux/amd64

+ func PangoFCFontLockFace(font *C.PangoFont) unsafe.Pointer — linux/amd64

+ func PangoFCFontMapConfigChanged(_ PangoFontMapW) — windows/amd64

+ func PangoFCFontMapConfigChanged(fontMap PangoFontMapW) — linux/amd64

+ func PangoFCFontUnlockFace(font *C.PangoFont) — linux/amd64

+ func PangoFT2FontGetFace(font *C.PangoFont) C.FT_Face — linux/amd64

+ func PangoFontDescGetFamily(desc *C.PangoFontDescription) string — linux/amd64

+ func PangoFontDescGetSize(desc *C.PangoFontDescription) int — linux/amd64

+ func PangoFontDescSetFamily(desc *C.PangoFontDescription, family string) — linux/amd64

+ func PangoFontMetricsGetAscent(m *C.PangoFontMetrics) int — linux/amd64

+ func PangoFontMetricsGetDescent(m *C.PangoFontMetrics) int — linux/amd64

+ func PangoFontMetricsGetStrikethroughPosition(m *C.PangoFontMetrics) int — linux/amd64

+ func PangoFontMetricsGetStrikethroughThickness(m *C.PangoFontMetrics) int — linux/amd64

+ func PangoFontMetricsGetUnderlinePosition(m *C.PangoFontMetrics) int — linux/amd64

+ func PangoFontMetricsGetUnderlineThickness(m *C.PangoFontMetrics) int — linux/amd64

+ func PangoGetDefaultLanguage() *C.PangoLanguage — linux/amd64

+ func PangoLayoutGetAttributes(layout *C.PangoLayout) *C.PangoAttrList — linux/amd64

+ func PangoLayoutGetContext(layout *C.PangoLayout) *C.PangoContext — linux/amd64

+ func PangoLayoutGetFontDescription(layout *C.PangoLayout) *C.PangoFontDescription — linux/amd64

+ func PangoLayoutGetLineCount(layout *C.PangoLayout) int — linux/amd64

+ func PangoLayoutGetLogAttrsReadonly(layout *C.PangoLayout) (*C.PangoLogAttr, int) — linux/amd64

+ func ScaleBitmapBicubic(src []byte, srcW, srcH, dstW, dstH int) []byte

+ func SetDPIAwareWindows()

+ func ValidateDimension(dim int, name, location string) error

+ func ValidateFontPath(_ string, _ string) error — js/wasm

+ func ValidateFontPath(path string, location string) error — darwin/amd64, linux/amd64, windows/amd64

+ func ValidateSize(size, minVal, maxVal float32, name, location string) error

+ func ValidateTextInput(text string, maxLen int, location string) error

+ type AffineTransform struct

+ X0 float32

+ XX float32

+ XY float32

+ Y0 float32

+ YX float32

+ YY float32

+ func AffineIdentity() AffineTransform

+ func AffineRotation(angle float32) AffineTransform

+ func AffineSkew(skewX, skewY float32) AffineTransform

+ func AffineTranslation(dx, dy float32) AffineTransform

+ func (a AffineTransform) Multiply(b AffineTransform) AffineTransform

+ func (t AffineTransform) Apply(x, y float32) (float32, float32)

+ type Alignment int

+ const AlignCenter

+ const AlignLeft

+ const AlignRight

+ type AtlasPage struct

+ Age uint64

+ Dirty bool

+ Height int

+ Shelves []Shelf

+ StagingBack []byte

+ StagingFront []byte

+ TextureID TextureID

+ UsedPixels int64

+ Width int

+ type Bitmap struct

+ Channels int

+ Data []byte

+ Height int

+ Width int

+ func FTBitmapToBitmap(bmp *C.FT_Bitmap, ftFace C.FT_Face, targetHeight int) (Bitmap, error)

+ type BlockStyle struct

+ Align Alignment

+ Indent float32

+ LineSpacing float32

+ Tabs []int

+ Width float32

+ Wrap WrapMode

+ func DefaultBlockStyle() BlockStyle

+ type CachedGlyph struct

+ Height int

+ Left int

+ Page int

+ Top int

+ Width int

+ X int

+ Y int

+ type CharRect struct

+ Index int

+ Rect Rect

+ type Clause struct

+ Length int

+ Start int

+ Style ClauseStyle

+ type ClauseRects struct

+ ClauseIdx int

+ Rects []Rect

+ Style ClauseStyle

+ type ClauseStyle int

+ const ClauseConverted

+ const ClauseRaw

+ const ClauseSelected

+ type Color struct

+ A uint8

+ B uint8

+ G uint8

+ R uint8

+ func GradientColorAt(stops []GradientStop, t float32) Color

+ func LerpColor(a, b Color, t float32) Color

+ type CompositionPhase int

+ const CompositionCommitted

+ const CompositionNone

+ const CompositionStarted

+ const CompositionUpdating

+ type CompositionState struct

+ Clauses []Clause

+ CursorOffset int

+ Phase CompositionPhase

+ PreeditStart int

+ PreeditText string

+ SelectedClause int

+ func NewCompositionState() CompositionState

+ func (cs *CompositionState) ClearClauses()

+ func (cs *CompositionState) Commit() string

+ func (cs *CompositionState) CompositionBounds(layout Layout) (Rect, bool)

+ func (cs *CompositionState) DocumentCursorPos() int

+ func (cs *CompositionState) GetClauseRects(layout Layout) []ClauseRects

+ func (cs *CompositionState) HandleClause(start, length, style int)

+ func (cs *CompositionState) HandleInsertText(text string) string

+ func (cs *CompositionState) HandleMarkedText(text string, cursorInPreedit, documentCursor int)

+ func (cs *CompositionState) HandleUnmarkText()

+ func (cs *CompositionState) IsComposing() bool

+ func (cs *CompositionState) PreeditEnd() int

+ func (cs *CompositionState) Reset()

+ func (cs *CompositionState) SetClauses(clauses []Clause, selected int)

+ func (cs *CompositionState) SetMarkedText(text string, cursorInPreedit int)

+ func (cs *CompositionState) Start(cursorPos int)

+ type Context struct

+ func NewContext(scaleFactor float32) (*Context, error)

+ func (ctx *Context) AddFontFile(_ string) error

+ func (ctx *Context) AddFontFile(path string) error

+ func (ctx *Context) FontHeight(cfg TextConfig) (float32, error)

+ func (ctx *Context) FontMetrics(cfg TextConfig) (TextMetrics, error)

+ func (ctx *Context) Free()

+ func (ctx *Context) LayoutRichText(rt RichText, cfg TextConfig) (Layout, error)

+ func (ctx *Context) LayoutText(text string, cfg TextConfig) (Layout, error)

+ func (ctx *Context) ResolveFontName(fontDescStr string) (string, error)

+ func (ctx *Context) ResolveFontName(name string) (string, error)

+ func (ctx *Context) ScaleFactor() float32

+ type CursorPosition struct

+ Height float32

+ X float32

+ Y float32

+ type DeadKeyState struct

+ HasPending bool

+ Pending rune

+ PendingPos int

+ func (dks *DeadKeyState) Clear()

+ func (dks *DeadKeyState) Reset()

+ func (dks *DeadKeyState) StartDeadKey(dead rune, pos int)

+ func (dks *DeadKeyState) TryCombine(base rune) (string, bool)

+ type DrawBackend interface

+ DPIScale func() float32

+ DeleteTexture func(id TextureID)

+ DrawFilledRect func(dst Rect, c Color)

+ DrawTexturedQuad func(id TextureID, src, dst Rect, c Color)

+ DrawTexturedQuadTransformed func(id TextureID, src, dst Rect, c Color, t AffineTransform)

+ NewTexture func(width, height int) TextureID

+ UpdateTexture func(id TextureID, data []byte)

+ type FTFace struct

+ func (f *FTFace) FacePtr() unsafe.Pointer

+ type FTLibrary struct

+ func InitFreeType() (FTLibrary, error)

+ func (l *FTLibrary) Close()

+ func (l *FTLibrary) Ptr() C.FT_Library

+ type FTStroker struct

+ func NewFTStroker(_ FTLibrary) (FTStroker, error)

+ func NewFTStroker(lib FTLibrary) (FTStroker, error)

+ func (s *FTStroker) Close()

+ type FontAxis struct

+ Tag string

+ Value float32

+ type FontFeature struct

+ Tag string

+ Value int

+ type FontFeatures struct

+ OpenTypeFeatures []FontFeature

+ VariationAxes []FontAxis

+ type FontMetricsEntry struct — linux/amd64

+ Ascent int

+ Descent int

+ LineGap int

+ type Glyph struct

+ Codepoint uint32

+ GlyphID uint16

+ Index uint32

+ XAdvance float64

+ XOffset float64

+ YAdvance float64

+ YOffset float64

+ type GlyphAtlas struct

+ Backend DrawBackend

+ CurrentPage int

+ FrameCounter uint64

+ Garbage []TextureID

+ LastFrame uint64

+ MaxGlyphDimension int

+ MaxPages int

+ Pages []AtlasPage

+ func NewGlyphAtlas(backend DrawBackend, w, h int) (*GlyphAtlas, error)

+ func (atlas *GlyphAtlas) Cleanup(frame uint64)

+ func (atlas *GlyphAtlas) Free()

+ func (atlas *GlyphAtlas) InsertBitmap(bmp Bitmap, left, top int) (CachedGlyph, bool, int, error)

+ func (atlas *GlyphAtlas) LoadGlyph(cfg LoadGlyphConfig, scaleFactor float32) (LoadGlyphResult, error)

+ func (atlas *GlyphAtlas) LoadStrokedGlyph(cfg LoadGlyphConfig, physStrokeWidth, scaleFactor float32) (LoadGlyphResult, error)

+ func (atlas *GlyphAtlas) SwapAndUpload()

+ type GlyphInfo struct

+ Advance float32

+ Index int

+ X float32

+ Y float32

+ type GlyphPlacement struct

+ Angle float32

+ X float32

+ Y float32

+ type GradientConfig struct

+ Direction GradientDirection

+ Stops []GradientStop

+ type GradientDirection int

+ const GradientHorizontal

+ const GradientVertical

+ type GradientStop struct

+ Color Color

+ Position float32

+ type InlineObject struct

+ Height float32

+ ID string

+ Offset float32

+ Width float32

+ type Item struct

+ Ascent float64

+ BgColor Color

+ CSSFont string

+ Color Color

+ Descent float64

+ FTFace unsafe.Pointer

+ GlyphCount int

+ GlyphStart int

+ HasBgColor bool

+ HasStrikethrough bool

+ HasStroke bool

+ HasUnderline bool

+ IsObject bool

+ Length int

+ ObjectID string

+ RunText string

+ StartIndex int

+ StrikethroughOffset float64

+ StrikethroughThickness float64

+ StrokeColor Color

+ StrokeWidth float32

+ Style TextStyle

+ UnderlineOffset float64

+ UnderlineThickness float64

+ UseOriginalColor bool

+ Width float64

+ X float64

+ Y float64

+ type Layout struct

+ CharRectByIndex map[int]int

+ CharRects []CharRect

+ ClonedObjectIDs []string

+ Glyphs []Glyph

+ Height float32

+ Items []Item

+ Lines []Line

+ LogAttrByIndex map[int]int

+ LogAttrs []LogAttr

+ Text string

+ VisualHeight float32

+ VisualWidth float32

+ Width float32

+ func (l *Layout) GetCharRect(index int) (Rect, bool)

+ func (l *Layout) GetClosestOffset(x, y float32) int

+ func (l *Layout) GetCursorPos(byteIndex int) (CursorPosition, bool)

+ func (l *Layout) GetFontNameAtIndex(index int) string

+ func (l *Layout) GetParagraphAtIndex(byteIndex int, text string) (int, int)

+ func (l *Layout) GetSelectionRects(start, end int) []Rect

+ func (l *Layout) GetValidCursorPositions() []int

+ func (l *Layout) GetWordAtIndex(byteIndex int) (int, int)

+ func (l *Layout) GlyphPositions() []GlyphInfo

+ func (l *Layout) HitTest(x, y float32) int

+ func (l *Layout) HitTestRect(x, y float32) (Rect, bool)

+ func (l *Layout) MoveCursorDown(byteIndex int, preferredX float32) int

+ func (l *Layout) MoveCursorLeft(byteIndex int) int

+ func (l *Layout) MoveCursorLineEnd(byteIndex int) int

+ func (l *Layout) MoveCursorLineStart(byteIndex int) int

+ func (l *Layout) MoveCursorRight(byteIndex int) int

+ func (l *Layout) MoveCursorUp(byteIndex int, preferredX float32) int

+ func (l *Layout) MoveCursorWordLeft(byteIndex int) int

+ func (l *Layout) MoveCursorWordRight(byteIndex int) int

+ type Line struct

+ IsParagraphStart bool

+ Length int

+ Rect Rect

+ StartIndex int

+ type LoadGlyphConfig struct

+ CSSFont string

+ ClusterText string

+ Codepoint uint32

+ Face C.FT_Face

+ Index uint32

+ Style TextStyle

+ SubpixelBin int

+ TargetHeight int

+ type LoadGlyphResult struct

+ Cached CachedGlyph

+ ResetOccurred bool

+ ResetPage int

+ func LoadGlyph(atlas *GlyphAtlas, cfg LoadGlyphConfig, scaleFactor float32) (LoadGlyphResult, error)

+ func LoadStrokedGlyph(atlas *GlyphAtlas, stroker FTStroker, cfg LoadGlyphConfig, strokeRadius int64, ...) (LoadGlyphResult, error)

+ type LogAttr struct

+ IsCursorPosition bool

+ IsLineBreak bool

+ IsWordEnd bool

+ IsWordStart bool

+ type MutationResult struct

+ CursorPos int

+ DeletedText string

+ NewText string

+ RangeEnd int

+ RangeStart int

+ func CutSelection(text string, cursor, anchor int) (string, MutationResult)

+ func DeleteBackward(text string, layout Layout, cursor int) MutationResult

+ func DeleteForward(text string, layout Layout, cursor int) MutationResult

+ func DeleteSelection(text string, cursor, anchor int) MutationResult

+ func DeleteToLineEnd(text string, layout Layout, cursor int) MutationResult

+ func DeleteToLineStart(text string, layout Layout, cursor int) MutationResult

+ func DeleteToWordBoundary(text string, layout Layout, cursor int) MutationResult

+ func DeleteToWordEnd(text string, layout Layout, cursor int) MutationResult

+ func InsertReplacingSelection(text string, cursor, anchor int, insert string) MutationResult

+ func InsertText(text string, cursor int, insert string) MutationResult

+ func (m MutationResult) ToChange(inserted string) TextChange

+ type OperationType int

+ const OpDelete

+ const OpInsert

+ const OpReplace

+ type PangoAttrListW struct

+ func NewPangoAttrList() PangoAttrListW

+ func PangoAttrListCopy(list *C.PangoAttrList) PangoAttrListW

+ func (a *PangoAttrListW) Close()

+ func (a PangoAttrListW) Insert(attr *C.PangoAttribute)

+ type PangoContextW struct

+ func (c *PangoContextW) Close()

+ func (c *PangoContextW) Ptr() *C.PangoContext

+ type PangoFontDescW struct

+ func NewPangoFontDescFromString(desc string) PangoFontDescW

+ func PangoFontDescNew() PangoFontDescW

+ func (d *PangoFontDescW) Close()

+ func (d PangoFontDescW) SetSize(_ int)

+ func (d PangoFontDescW) SetSize(size int)

+ func (d PangoFontDescW) SetStyle(_ int)

+ func (d PangoFontDescW) SetStyle(style int)

+ func (d PangoFontDescW) SetVariations(_ string)

+ func (d PangoFontDescW) SetVariations(variations string)

+ func (d PangoFontDescW) SetWeight(_ int)

+ func (d PangoFontDescW) SetWeight(weight int)

+ type PangoFontMapW struct

+ func NewPangoFT2FontMap() PangoFontMapW

+ func (m *PangoFontMapW) Close()

+ func (m PangoFontMapW) CreateContext() PangoContextW

+ func (m PangoFontMapW) SetResolution(_, _ float64)

+ func (m PangoFontMapW) SetResolution(dpiX, dpiY float64)

+ type PangoFontMetricsW struct

+ func PangoFontGetMetrics(font *C.PangoFont, lang *C.PangoLanguage) PangoFontMetricsW

+ func (m *PangoFontMetricsW) Close()

+ type PangoFontW struct

+ func PangoContextLoadFont(ctx *C.PangoContext, desc *C.PangoFontDescription) PangoFontW

+ func (f *PangoFontW) Close()

+ type PangoLayoutIterW struct

+ func (it *PangoLayoutIterW) Close()

+ func (it PangoLayoutIterW) GetBaseline() int

+ func (it PangoLayoutIterW) GetCharExtents() C.PangoRectangle

+ func (it PangoLayoutIterW) GetIndex() int

+ func (it PangoLayoutIterW) GetLineExtents() (ink, logical C.PangoRectangle)

+ func (it PangoLayoutIterW) GetLineReadonly() *C.PangoLayoutLine

+ func (it PangoLayoutIterW) GetRunExtents() (ink, logical C.PangoRectangle)

+ func (it PangoLayoutIterW) GetRunReadonly() *C.PangoGlyphItem

+ func (it PangoLayoutIterW) NextChar() bool

+ func (it PangoLayoutIterW) NextLine() bool

+ func (it PangoLayoutIterW) NextRun() bool

+ type PangoLayoutW struct

+ func NewPangoLayout(ctx PangoContextW) PangoLayoutW

+ func (l *PangoLayoutW) Close()

+ func (l PangoLayoutW) GetExtents() (ink, logical C.PangoRectangle)

+ func (l PangoLayoutW) GetIter() PangoLayoutIterW

+ func (l PangoLayoutW) Ptr() *C.PangoLayout

+ func (l PangoLayoutW) SetAlignment(align Alignment)

+ func (l PangoLayoutW) SetAttributes(attrs PangoAttrListW)

+ func (l PangoLayoutW) SetFontDescription(desc PangoFontDescW)

+ func (l PangoLayoutW) SetIndent(indent int)

+ func (l PangoLayoutW) SetMarkup(text string)

+ func (l PangoLayoutW) SetTabs(tabs PangoTabArrayW)

+ func (l PangoLayoutW) SetText(text string)

+ func (l PangoLayoutW) SetWidth(width int)

+ func (l PangoLayoutW) SetWrap(mode WrapMode)

+ type PangoTabArrayW struct

+ func NewPangoTabArray(_ int) PangoTabArrayW

+ func NewPangoTabArray(_ int, _ bool) PangoTabArrayW

+ func NewPangoTabArray(size int) PangoTabArrayW

+ func (t *PangoTabArrayW) Close()

+ func (t PangoTabArrayW) SetTab(_, _ int)

+ func (t PangoTabArrayW) SetTab(index, position int)

+ type Rect struct

+ Height float32

+ Width float32

+ X float32

+ Y float32

+ type Renderer struct

+ func NewRenderer(backend DrawBackend, scaleFactor float32) (*Renderer, error)

+ func NewRendererWithConfig(backend DrawBackend, scaleFactor float32, atlasW, atlasH int, ...) (*Renderer, error)

+ func (r *Renderer) Atlas() *GlyphAtlas

+ func (r *Renderer) Commit()

+ func (r *Renderer) DrawComposition(layout Layout, x, y float32, cs *CompositionState, cursorColor Color)

+ func (r *Renderer) DrawLayout(layout Layout, x, y float32)

+ func (r *Renderer) DrawLayoutPlaced(layout Layout, placements []GlyphPlacement)

+ func (r *Renderer) DrawLayoutRotated(layout Layout, x, y, angle float32)

+ func (r *Renderer) DrawLayoutTransformed(layout Layout, x, y float32, transform AffineTransform)

+ func (r *Renderer) DrawLayoutTransformedWithGradient(layout Layout, x, y float32, transform AffineTransform, ...)

+ func (r *Renderer) DrawLayoutWithComposition(layout Layout, x, y float32, cs *CompositionState)

+ func (r *Renderer) DrawLayoutWithGradient(layout Layout, x, y float32, gradient *GradientConfig)

+ func (r *Renderer) Free()

+ type RendererConfig struct

+ MaxGlyphCacheEntries int

+ type RichText struct

+ Runs []StyleRun

+ type Shelf struct

+ CursorX int

+ Height int

+ Width int

+ Y int

+ type StyleRun struct

+ Style TextStyle

+ Text string

+ type TextChange struct

+ NewText string

+ OldText string

+ RangeEnd int

+ RangeStart int

+ type TextConfig struct

+ Block BlockStyle

+ Gradient *GradientConfig

+ NoHitTesting bool

+ Orientation TextOrientation

+ Style TextStyle

+ UseMarkup bool

+ type TextMetrics struct

+ Ascender float32

+ Descender float32

+ Height float32

+ LineGap float32

+ type TextOrientation int

+ const OrientationHorizontal

+ const OrientationVertical

+ type TextStyle struct

+ BgColor Color

+ Color Color

+ Features *FontFeatures

+ FontName string

+ LetterSpacing float32

+ Object *InlineObject

+ Size float32

+ Strikethrough bool

+ StrokeColor Color

+ StrokeWidth float32

+ Typeface Typeface

+ Underline bool

+ type TextSystem struct

+ func NewTextSystem(backend DrawBackend) (*TextSystem, error)

+ func NewTextSystemAtlasSize(backend DrawBackend, atlasW, atlasH int) (*TextSystem, error)

+ func (ts *TextSystem) AddFontFile(path string) error

+ func (ts *TextSystem) Commit()

+ func (ts *TextSystem) Context() *Context

+ func (ts *TextSystem) DrawLayout(l Layout, x, y float32)

+ func (ts *TextSystem) DrawLayoutPlaced(l Layout, placements []GlyphPlacement)

+ func (ts *TextSystem) DrawLayoutRotated(l Layout, x, y, angle float32)

+ func (ts *TextSystem) DrawLayoutTransformed(l Layout, x, y float32, transform AffineTransform)

+ func (ts *TextSystem) DrawLayoutTransformedWithGradient(l Layout, x, y float32, transform AffineTransform, gradient *GradientConfig)

+ func (ts *TextSystem) DrawLayoutWithGradient(l Layout, x, y float32, gradient *GradientConfig)

+ func (ts *TextSystem) DrawText(x, y float32, text string, cfg TextConfig) error

+ func (ts *TextSystem) FontHeight(cfg TextConfig) (float32, error)

+ func (ts *TextSystem) FontMetrics(cfg TextConfig) (TextMetrics, error)

+ func (ts *TextSystem) Free()

+ func (ts *TextSystem) LayoutRichText(rt RichText, cfg TextConfig) (Layout, error)

+ func (ts *TextSystem) LayoutText(text string, cfg TextConfig) (Layout, error)

+ func (ts *TextSystem) LayoutTextCached(text string, cfg TextConfig) (Layout, error)

+ func (ts *TextSystem) Renderer() *Renderer

+ func (ts *TextSystem) ResolveFontName(name string) (string, error)

+ func (ts *TextSystem) TextHeight(text string, cfg TextConfig) (float32, error)

+ func (ts *TextSystem) TextWidth(text string, cfg TextConfig) (float32, error)

+ type TextureID uint64

+ type Typeface int

+ const TypefaceBold

+ const TypefaceBoldItalic

+ const TypefaceItalic

+ const TypefaceRegular

+ type UndoManager struct

+ func NewUndoManager(maxHistory int) *UndoManager

+ func (um *UndoManager) BreakCoalescing()

+ func (um *UndoManager) CanRedo() bool

+ func (um *UndoManager) CanUndo() bool

+ func (um *UndoManager) Clear()

+ func (um *UndoManager) FlushPending()

+ func (um *UndoManager) RecordMutation(result MutationResult, inserted string, cursorBefore, anchorBefore int)

+ func (um *UndoManager) Redo(text string) *UndoResult

+ func (um *UndoManager) Undo(text string) *UndoResult

+ func (um *UndoManager) UndoDepth() int

+ type UndoOperation struct

+ AnchorAfter int

+ AnchorBefore int

+ CursorAfter int

+ CursorBefore int

+ DeletedText string

+ InsertedText string

+ OpType OperationType

+ RangeEnd int

+ RangeStart int

+ func MutationToUndoOp(result MutationResult, inserted string, cursorBefore, anchorBefore int) UndoOperation

+ type UndoResult struct

+ Anchor int

+ Cursor int

+ Text string

+ type WrapMode int

+ const WrapChar

+ const WrapNone

+ const WrapWord

+ const WrapWordChar

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