1 package barcode
2 3 import "image"
4 5 const (
6 TypeAztec = "Aztec"
7 TypeCodabar = "Codabar"
8 TypeCode128 = "Code 128"
9 TypeCode39 = "Code 39"
10 TypeCode93 = "Code 93"
11 TypeDataMatrix = "DataMatrix"
12 TypeEAN8 = "EAN 8"
13 TypeEAN13 = "EAN 13"
14 TypePDF = "PDF417"
15 TypeQR = "QR Code"
16 Type2of5 = "2 of 5"
17 Type2of5Interleaved = "2 of 5 (interleaved)"
18 )
19 20 // Contains some meta information about a barcode
21 type Metadata struct {
22 // the name of the barcode kind
23 CodeKind string
24 // contains 1 for 1D barcodes or 2 for 2D barcodes
25 Dimensions byte
26 }
27 28 // a rendered and encoded barcode
29 type Barcode interface {
30 image.Image
31 // returns some meta information about the barcode
32 Metadata() Metadata
33 // the data that was encoded in this barcode
34 Content() string
35 }
36 37 // Additional interface that some barcodes might implement to provide
38 // the value of its checksum.
39 type BarcodeIntCS interface {
40 Barcode
41 CheckSum() int
42 }
43