internal

Documentation

Index

• Variables
• type BackgroundMaker
• type Context
• type ContextMaker
• type FontFinder
• type HttpGetter
• type ImageEncoder
• type ImageWriter

Variables

var HttpGet = http.Get

Types

type BackgroundMaker

type BackgroundMaker func(width, height int, color string) image.Image

var MakeBackground BackgroundMaker = func(width, height int, color string) image.Image {
	backgroundConfig := blank.Config{Color: color}
	return backgroundConfig.GenerateImage(width, height)
}

type Context

type Context interface {
	Image() image.Image
	DrawString(s string, x, y float64)
	DrawStringAnchored(s string, x, y, ax, ay float64)
	DrawStringWrapped(s string, x, y, ax, ay, width, lineSpacing float64, align gg.Align)
	LoadFontFace(path string, points float64) error
	MeasureString(s string) (w, h float64)
	MeasureMultilineString(s string, lineSpacing float64) (w, h float64)
	SetColor(c color.Color)
	WordWrap(s string, w float64) []string
}

type ContextMaker

type ContextMaker func(i image.Image) Context

var NewContext ContextMaker = func(i image.Image) Context {
	return gg.NewContextForImage(i)
}

type FontFinder

type FontFinder func(font string) (filePath string, err error)

var FindFont FontFinder = findfont.Find

type HttpGetter

type HttpGetter func(path string) (*http.Response, error)

type ImageEncoder

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

var EncodeImage ImageEncoder = png.Encode

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()
}