utils

Documentation

Index

• Variables
• func IMGResize(img []byte, opt Options) ([]byte, error)
• func MakeSlug(text string) string
• func MakeSlugf(format string, a ...interface{}) string
• type Options

Variables

var SAFE = []*unicode.RangeTable{
	unicode.Letter,
	unicode.Number,
}

var SKIP = []*unicode.RangeTable{
	unicode.Mark,
	unicode.Sk,
	unicode.Lm,
}

Functions

func IMGResize

func IMGResize(img []byte, opt Options) ([]byte, error)

Transform the provided image. img should contain the raw bytes of an encoded image in one of the supported formats (gif, jpeg, or png). The bytes of a similarly encoded image is returned.

func MakeSlug

func MakeSlug(text string) string

Slugify a string. The result will only contain lowercase letters, digits and dashes. It will not begin or end with a dash, and it will not contain runs of multiple dashes.

It is NOT forced into being ASCII, but may contain any Unicode characters, with the above restrictions.

func MakeSlugf

func MakeSlugf(format string, a ...interface{}) string

Slugifyf slugfy a formated string

Types

type Options

type Options struct {
	// See ParseOptions for interpretation of Width and Height values
	Width  float64
	Height float64

	// If true, resize the image to fit in the specified dimensions.  Image
	// will not be cropped, and aspect ratio will be maintained.
	Fit bool

	// Rotate image the specified degrees counter-clockwise.  Valid values
	// are 90, 180, 270.
	Rotate int

	FlipVertical   bool
	FlipHorizontal bool

	// Quality of output image
	Quality int

	// HMAC Signature for signed requests.
	Signature string

	// Allow image to scale beyond its original dimensions.  This value
	// will always be overwritten by the value of Proxy.ScaleUp.
	ScaleUp bool

	// Desired image format. Valid values are "jpeg", "png", "tiff".
	Format string

	// Crop rectangle params
	CropX      float64
	CropY      float64
	CropWidth  float64
	CropHeight float64

	// Automatically find good crop points based on image content.
	SmartCrop bool
}

Options specifies transformations to be performed on the requested image.