Barcode Code128

[andrey-ushakov]

Barcode Code128

[Guillaume-Fortin]

yes, it's possible if your printer support this barcode format.

i tested sucessfully on TP50 Oxhoo printer.

  /// CODE128
  static const code128 = BarcodeType._internal(73);

/// CODE128
  ///
  /// k >= 2
  /// d: '{A'/'{B'/'{C' => '0'–'9', A–D, a–d, $, +, −, ., /, :
  Barcode.code128(List<dynamic> barcodeData) {
    final k = barcodeData.length;
    if (k < 2) {
      throw Exception('Barcode: Wrong data range');
    }

    final regex = RegExp(r'^\{[A-C][\x00-\x7F]+$');
    final bool isDataValid = barcodeData.every((dynamic d) => regex.hasMatch(d.toString()));
    if (!isDataValid) {
      throw Exception('Barcode: Data is not valid');
    }

    _type = BarcodeType.code128;
    _data = _convertData(barcodeData);
  }

and i change barcode method:

rawBytes(header + barcode.data + [0]);

by

if(barcode.type.value <= 6){
      rawBytes(header + barcode.data + [0]);
    }
    else{      
      rawBytes(header + [barcode.data.length] + barcode.data);
    }

usage:
{A = QRCode type A
{B = QRCode type B
{C = QRCode type C

final List barcodeData = "{A978020137962".split("");
Barcode barCode = Barcode.code128(barcodeData);
ticket.barcode(barCode);

[Guillaume-Fortin]

@andrey-ushakov i can give you the code for print qr code in few days

[andrey-ushakov]

@Thetyne thank you!

Can I add your code to the next release, please? Later I will create a Contributors section in README.md and add your GitHub nickname / link.

BTW, I think this line
final bool isDataValid = barcodeData.every((dynamic d) => regex.hasMatch(d.toString()));

should be changed by
final bool isDataValid = regex.hasMatch(barcodeData.join());

[Guillaume-Fortin]

@andrey-ushakov yes you can add it!

[andrey-ushakov]

That would be awesome!

[andrey-ushakov]

CODE128 added to the latest release.