imghelper

Documentation

Index

• func ImgWidthHeight(fp string) (width, height int, err error)
• type ImageHandler
  • func NewImageHandler(src io.Reader, out io.Writer) (h *ImageHandler, err error)
  • func (h *ImageHandler) Clip(rect image.Rectangle, quality int) (err error)
  • func (h *ImageHandler) Scale(width, height, quality int) error

Functions

func ImgWidthHeight

func ImgWidthHeight(fp string) (width, height int, err error)

Types

type ImageHandler

type ImageHandler struct {
	In  image.Image
	Fm  string
	Out io.Writer
}

func NewImageHandler

func NewImageHandler(src io.Reader, out io.Writer) (h *ImageHandler, err error)

func (*ImageHandler) Clip

func (h *ImageHandler) Clip(rect image.Rectangle, quality int) (err error)

图片裁剪

func (*ImageHandler) Scale

func (h *ImageHandler) Scale(width, height, quality int) error

缩略图