op

Documentation

Index

• func ColorOp(ops Ctx, col color.NRGBA)
• func GlyphOp(ops Ctx, face *bitmap.Face, r rune)
• func ImageOp(ops Ctx, img image.Image, mask bool)
• func InputOp(ops Ctx, tag Tag)
• func Offset(ops Ctx, off image.Point)
• func ParamImageOp(ops Ctx, img Image, mask bool, bounds image.Rectangle, refs []any, ...)
• func Position(ops Ctx, c CallOp, off image.Point)
• type CallOp
  • func (c CallOp) Add(ops Ctx)
• type ClipOp
  • func (c ClipOp) Add(ops Ctx)
• type Ctx
  • func (o *Ctx) Begin() Ctx
  • func (o *Ctx) End() CallOp
• type Image
  • func RegisterParameterizedImage(gen ImageGenerator) Image
• type ImageArguments
• type ImageGenerator
• type Ops
  • func (o *Ops) Clip(dst image.Rectangle) image.Rectangle
  • func (o *Ops) Context() Ctx
  • func (o *Ops) Draw(dst draw.Image, maskfb draw.Image)
  • func (o *Ops) ExtractText(dst image.Rectangle) string
  • func (o *Ops) Hit(p image.Point) (Tag, image.Rectangle, bool)
  • func (o *Ops) Reset()
  • func (o *Ops) TagBounds(t Tag) (image.Rectangle, bool)
• type Tag

Functions

func ColorOp

func ColorOp(ops Ctx, col color.NRGBA)

func GlyphOp

func GlyphOp(ops Ctx, face *bitmap.Face, r rune)

func ImageOp

func ImageOp(ops Ctx, img image.Image, mask bool)

func InputOp

func InputOp(ops Ctx, tag Tag)

func Offset

func Offset(ops Ctx, off image.Point)

func ParamImageOp

func ParamImageOp(ops Ctx, img Image, mask bool, bounds image.Rectangle, refs []any, args []uint32)

func Position

func Position(ops Ctx, c CallOp, off image.Point)

Types

type CallOp

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

func (CallOp) Add

func (c CallOp) Add(ops Ctx)

type ClipOp

type ClipOp image.Rectangle

func (ClipOp) Add

func (c ClipOp) Add(ops Ctx)

type Ctx

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

func (*Ctx) Begin

func (o *Ctx) Begin() Ctx

func (*Ctx) End

func (o *Ctx) End() CallOp

type Image

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

func RegisterParameterizedImage

func RegisterParameterizedImage(gen ImageGenerator) Image

type ImageArguments

type ImageArguments struct {
	Refs   []any
	Args   []uint32
	Bounds image.Rectangle
}

type ImageGenerator

type ImageGenerator func(args ImageArguments, x, y int) color.RGBA64

type Ops

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

func (*Ops) Clip

func (o *Ops) Clip(dst image.Rectangle) image.Rectangle

func (*Ops) Context

func (o *Ops) Context() Ctx

func (*Ops) Draw

func (o *Ops) Draw(dst draw.Image, maskfb draw.Image)

func (*Ops) ExtractText

func (o *Ops) ExtractText(dst image.Rectangle) string

func (*Ops) Hit

func (o *Ops) Hit(p image.Point) (Tag, image.Rectangle, bool)

func (*Ops) Reset

func (o *Ops) Reset()

func (*Ops) TagBounds

func (o *Ops) TagBounds(t Tag) (image.Rectangle, bool)

type Tag

type Tag any