barcode

Documentation

Index

• Constants
• func GetImageBorder(barcode Barcode, size int) image.Image
• type Barcode
  • func Scale(bc Barcode, width, height int) (Barcode, error)
• type BarcodeIntCS
• type Metadata

Constants

const (
	TypeAztec           = "Aztec"
	TypeCodabar         = "Codabar"
	TypeCode128         = "Code 128"
	TypeCode39          = "Code 39"
	TypeCode93          = "Code 93"
	TypeDataMatrix      = "DataMatrix"
	TypeEAN8            = "EAN 8"
	TypeEAN13           = "EAN 13"
	TypePDF             = "PDF417"
	TypeQR              = "QR Code"
	Type2of5            = "2 of 5"
	Type2of5Interleaved = "2 of 5 (interleaved)"
)

Functions

func GetImageBorder

func GetImageBorder(barcode Barcode, size int) image.Image

Types

type Barcode

type Barcode interface {
	image.Image
	// returns some meta information about the barcode
	Metadata() Metadata
	// the data that was encoded in this barcode
	Content() string
}

a rendered and encoded barcode

func Scale

func Scale(bc Barcode, width, height int) (Barcode, error)

Scale returns a resized barcode with the given width and height.

type BarcodeIntCS

type BarcodeIntCS interface {
	Barcode
	CheckSum() int
}

Additional interface that some barcodes might implement to provide the value of its checksum.

type Metadata

type Metadata struct {
	// the name of the barcode kind
	CodeKind string
	// contains 1 for 1D barcodes or 2 for 2D barcodes
	Dimensions byte
}

Contains some meta information about a barcode