text

Documentation

Index

• type Alignment
• type Formatter
  • func (f *Formatter) Next(format string, args ...any) (rune, bool)
• type Glyph
• type Layout
  • func (l *Layout) Next(format string, args ...any) (Glyph, bool)
• type Style
  • func (l Style) LineHeight() int
  • func (s Style) Measure(maxWidth int, format string, args ...any) image.Point

Types

type Alignment

type Alignment int

const (
	AlignStart Alignment = iota
	AlignEnd
	AlignCenter
)

type Formatter

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

Formatter is a poor man's fmt.Sprintf that doesn't allocate. TODO: It can be replaced when something like https://github.com/golang/go/issues/62653 is implemented in the Go implementation.

func (*Formatter) Next

func (f *Formatter) Next(format string, args ...any) (rune, bool)

type Glyph

type Glyph struct {
	Rune    rune
	Dot     fixed.Int26_6
	Advance fixed.Int26_6
}

type Layout

type Layout struct {
	MaxWidth int
	Style    Style
	// contains filtered or unexported fields
}

func (*Layout) Next

func (l *Layout) Next(format string, args ...any) (Glyph, bool)

TODO: Convert to iterator when TinyGo can move its allocations to the stack.

type Style

type Style struct {
	Face            *bitmap.Face
	Alignment       Alignment
	LineHeightScale float32
	LetterSpacing   int
}

func (Style) LineHeight

func (l Style) LineHeight() int

func (Style) Measure

func (s Style) Measure(maxWidth int, format string, args ...any) image.Point