internal

Documentation

Index

• type Drawer
• type ImageEncoder
• type ImageMaker
• type ImageWriter

Types

type Drawer

type Drawer func(dst draw.Image, r image.Rectangle, src image.Image, sp image.Point, op draw.Op)

var Draw Drawer = draw.Draw

type ImageEncoder

type ImageEncoder func(w io.Writer, i image.Image) error

var EncodeImage ImageEncoder = png.Encode

type ImageMaker

type ImageMaker func(width, height int) *image.RGBA

var NewImage ImageMaker = func(width, height int) *image.RGBA {
	return image.NewRGBA(image.Rect(0, 0, width, height))
}

type ImageWriter

type ImageWriter func(file string, i image.Image) error

var WriteImage ImageWriter = func(file string, i image.Image) error {
	f, err := os.Create(file)
	if err != nil {
		return err
	}
	err = EncodeImage(f, i)
	if err != nil {
		return err
	}
	return f.Close()
}