1package barcode 2 3import "image" 4 5const ( 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 21type 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 29type 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. 39type BarcodeIntCS interface { 40 Barcode 41 CheckSum() int 42} 43