bufferDanfe method

  1. @override
Future<List<int>> bufferDanfe(
  1. Danfe? danfe, {
  2. bool mostrarMoeda = true,
})
override

Gera o buffer de dados para impressão do DANFE em formato ESC/POS.

danfe - Dados do DANFE que serão processados para impressão. mostrarMoeda - Define se o símbolo da moeda deve ser exibido. Valor padrão é true.

Retorna uma lista de bytes que representa os comandos de impressão.

Implementation

@override
Future<List<int>> bufferDanfe(Danfe? danfe,
    {bool mostrarMoeda = true}) async {
  String moeda = (mostrarMoeda == true) ? r'R$' : '';
  final profile = await CapabilityProfile.load();
  final generator = Generator(paperSize, profile);
  List<int> bytes = [];
  // Print image
  bytes += generator.rawBytes([27, 97, 49]);
  bytes += generator.text(
      DanfeUtils.removeAcentos(
          danfe?.dados?.emit?.xFant ?? (danfe?.dados?.emit?.xNome ?? '')),
      styles: const PosStyles(
        align: PosAlign.center,
        bold: true,
      ));
  final String uf = danfe?.dados?.emit?.enderEmit?.uF == null
      ? ''
      : ' - ${danfe!.dados!.emit!.enderEmit!.uF}';
  bytes += generator.text(
      ('CNPJ - ${DanfeUtils.formatCNPJ(danfe?.dados?.emit?.cnpj ?? '')}'),
      styles: const PosStyles(align: PosAlign.center));
  bytes += generator.text(
      DanfeUtils.removeAcentos(
          '${danfe?.dados?.emit?.enderEmit?.xLgr ?? ''},${danfe?.dados?.emit?.enderEmit?.nro ?? ''} ${danfe?.dados?.emit?.enderEmit?.xBairro ?? ''}$uf'),
      styles: const PosStyles(align: PosAlign.center));
  bytes += generator.text(
      'CEP: ${DanfeUtils.formatCep(danfe?.dados?.emit?.enderEmit?.cEP ?? '')}',
      styles: const PosStyles(align: PosAlign.center));
  bytes += generator.rawBytes([27, 97, 48]);
  bytes += generator.hr();
  bytes += generator.rawBytes([27, 97, 49]);
  if ((danfe?.tipo ?? TipoDocumento.CFe) == TipoDocumento.CFe) {
    bytes += generator.text('Nota Fiscal Eletronica - SAT ',
        styles: const PosStyles(
            align: PosAlign.center,
            bold: true,
            height: PosTextSize.size1,
            width: PosTextSize.size1));
  } else {
    bytes += generator.text('Nota Fiscal Eletronica - NFC-E ',
        styles: const PosStyles(
            align: PosAlign.center,
            bold: true,
            height: PosTextSize.size1,
            width: PosTextSize.size1));
  }
  bytes += generator.rawBytes([27, 97, 48]);
  var documentoConsumidor = (danfe?.dados?.dest?.cpf != null)
      ? DanfeUtils.formatCPF(danfe?.dados?.dest?.cpf ?? '')
      : DanfeUtils.formatCNPJ(danfe?.dados?.dest?.cnpj ?? '');
  bytes += generator.text("CPF/CNPJ do consumidor: $documentoConsumidor",
      styles: const PosStyles(align: PosAlign.left));
  if (danfe?.dados?.dest?.xNome != '' || danfe?.dados?.dest?.xNome != null) {
    bytes += generator.text("Nome: ${danfe?.dados?.dest?.xNome ?? ''}",
        styles: const PosStyles(align: PosAlign.left));
  }
  bytes += generator.text("Nota: ${danfe?.dados?.ide?.nNF ?? ''}",
      styles: const PosStyles(align: PosAlign.left));
  bytes += generator.text(
      'Data: ${DanfeUtils.formatDate(danfe?.dados?.ide?.dataEmissao ?? '')}',
      styles: const PosStyles(align: PosAlign.center));
  if (danfe?.dados?.ide?.dhSaiEnt != null) {
    bytes += generator.text(
        'Data E/S: ${DanfeUtils.formatDate(danfe?.dados?.ide?.dhSaiEnt ?? '')}',
        styles: const PosStyles(align: PosAlign.center));
  }

  bytes += generator.hr();

  if (paperSize == PaperSize.mm58) {
    bytes += generator.row([
      PosColumn(
          text: 'DESCRICAO',
          width: 7,
          styles: const PosStyles(align: PosAlign.left, bold: true)),
      PosColumn(
          text: 'QTD',
          width: 2,
          styles: const PosStyles(align: PosAlign.right, bold: true)),
      PosColumn(
          text: 'VLTOT',
          width: 3,
          styles: const PosStyles(align: PosAlign.right, bold: true)),
    ]);
  } else {
    bytes += generator.row([
      PosColumn(
          text: 'DESCRICAO',
          width: 5,
          styles: const PosStyles(align: PosAlign.left, bold: true)),
      PosColumn(
          text: 'QTD',
          width: 1,
          styles: const PosStyles(align: PosAlign.right, bold: true)),
      PosColumn(
          text: 'VLUN',
          width: 3,
          styles: const PosStyles(align: PosAlign.right, bold: true)),
      PosColumn(
          text: 'VLTOT',
          width: 3,
          styles: const PosStyles(align: PosAlign.right, bold: true)),
    ]);
  }
  if (danfe?.dados?.det != null) {
    for (Det det in danfe!.dados!.det!) {
      if (paperSize == PaperSize.mm58) {
        bytes += generator.row([
          PosColumn(
              text: det.prod?.xProd ?? '',
              width: 7,
              styles: const PosStyles(
                  align: PosAlign.left, width: PosTextSize.size1)),
          PosColumn(
              text: DanfeUtils.formatNumber(det.prod?.qCom ?? ''),
              width: 2,
              styles: const PosStyles(align: PosAlign.right)),
          PosColumn(
              text: DanfeUtils.formatMoneyMilhar(det.prod?.vProd ?? '',
                  modeda: 'pt_BR', simbolo: moeda),
              width: 3,
              styles: const PosStyles(align: PosAlign.right)),
        ]);
      } else {
        bytes += generator.row([
          PosColumn(
              text: det.prod?.xProd ?? '',
              width: 5,
              styles: const PosStyles(align: PosAlign.left)),
          PosColumn(
              text: DanfeUtils.formatNumber(det.prod?.qCom ?? ''),
              width: 1,
              styles: const PosStyles(align: PosAlign.right)),
          PosColumn(
              text: DanfeUtils.formatMoneyMilhar(det.prod?.vUnCom ?? '',
                  modeda: 'pt_BR', simbolo: moeda),
              width: 3,
              styles: const PosStyles(align: PosAlign.right)),
          PosColumn(
              text: DanfeUtils.formatMoneyMilhar(det.prod?.vProd ?? '',
                  modeda: 'pt_BR', simbolo: moeda),
              width: 3,
              styles: const PosStyles(align: PosAlign.right)),
        ]);
      }
    }
  }
  bytes += generator.hr();
  bytes += generator.row([
    PosColumn(
        text: 'QTD DE ITENS',
        width: 6,
        styles: const PosStyles(align: PosAlign.left)),
    PosColumn(
        text: DanfeUtils.formatNumber(
            danfe?.dados?.det?.length.toString() ?? ''),
        width: 6,
        styles: const PosStyles(
            align: PosAlign.right,
            height: PosTextSize.size1,
            width: PosTextSize.size1)),
  ]);
  bytes += generator.row([
    PosColumn(
        text: 'SUBTOTAL',
        width: 6,
        styles: const PosStyles(bold: true, align: PosAlign.left)),
    PosColumn(
        text: DanfeUtils.formatMoneyMilhar(
            danfe?.dados?.total?.valorTotal ?? '',
            modeda: 'pt_BR',
            simbolo: moeda),
        width: 6,
        styles: const PosStyles(align: PosAlign.right, bold: true)),
  ]);

  if ((danfe?.dados?.total?.desconto ?? '0.00') != '0.00') {
    bytes += generator.row([
      PosColumn(
          text: 'DESCONTO',
          width: 6,
          styles: const PosStyles(align: PosAlign.left)),
      PosColumn(
          text: DanfeUtils.formatMoneyMilhar(
              danfe?.dados?.total?.desconto ?? '',
              modeda: 'pt_BR',
              simbolo: moeda),
          width: 6,
          styles: const PosStyles(
            align: PosAlign.right,
          )),
    ]);
  }

  if ((danfe?.dados?.total?.acrescimo ?? '0.00') != '0.00') {
    bytes += generator.row([
      PosColumn(text: 'ACRESCIMO', width: 6, styles: const PosStyles()),
      PosColumn(
          text: DanfeUtils.formatMoneyMilhar(
              danfe?.dados?.total?.acrescimo ?? '',
              modeda: 'pt_BR',
              simbolo: moeda),
          width: 6,
          styles: const PosStyles(
            align: PosAlign.right,
          )),
    ]);
  }
  if ((danfe?.dados?.pgto?.vTroco ?? '0.00') != '0.00') {
    bytes += generator.row([
      PosColumn(
          text: 'TROCO',
          width: 6,
          styles: const PosStyles(align: PosAlign.left)),
      PosColumn(
          text: DanfeUtils.formatMoneyMilhar(danfe?.dados?.pgto?.vTroco ?? '',
              modeda: 'pt_BR', simbolo: moeda),
          width: 6,
          styles: const PosStyles(align: PosAlign.right)),
    ]);
  }

  bytes += generator.row([
    PosColumn(
        text: 'TOTAL',
        width: 6,
        styles: const PosStyles(bold: true, align: PosAlign.left)),
    PosColumn(
        text: DanfeUtils.formatMoneyMilhar(
            danfe?.dados?.total?.valorPago ?? '0.00',
            modeda: 'pt_BR',
            simbolo: moeda),
        width: 6,
        styles: const PosStyles(align: PosAlign.right, bold: true)),
  ]);
  bytes += generator.hr();
  if (danfe?.dados?.pgto != null) {
    bytes += generator.row([
      PosColumn(
          text: 'FORMAS DE PAGAMENTO',
          width: 6,
          styles: const PosStyles(bold: true)),
      PosColumn(
          text: 'VALOR PAGO',
          width: 6,
          styles: const PosStyles(align: PosAlign.right, bold: true)),
    ]);
    for (MP pagamento in danfe!.dados!.pgto!.formas!) {
      bytes += generator.row([
        PosColumn(
            text: pagamento.cMP ?? '',
            width: 6,
            styles: const PosStyles(align: PosAlign.left)),
        PosColumn(
            text: DanfeUtils.formatMoneyMilhar(pagamento.vMP ?? '',
                modeda: 'pt_BR', simbolo: moeda),
            width: 6,
            styles: const PosStyles(align: PosAlign.right)),
      ]);
    }
    bytes += generator.hr();
  }

  if (danfe?.dados?.transp != null) {
    if (danfe?.dados?.transp?.transporta?.xNome != null) {
      bytes += generator.rawBytes([27, 97, 49]);
      bytes += generator.text('TRANSPORTADORA',
          styles: const PosStyles(align: PosAlign.center, bold: true));

      bytes += generator.text(danfe?.dados?.transp?.transporta?.xNome ?? '');
      bytes += generator.text(danfe?.dados?.transp?.transporta?.xEnder ?? '');
      bytes += generator.text(
          '${danfe?.dados?.transp?.transporta?.xMun ?? ''} ${danfe?.dados?.transp?.transporta?.uf ?? ''}');
      bytes += generator.rawBytes([27, 97, 48]);

      bytes += generator.hr();
    }
  }

  if (danfe?.dados?.cobr != null) {
    bytes += generator.rawBytes([27, 97, 49]);
    bytes += generator.text('COBRANCA',
        styles: const PosStyles(align: PosAlign.center, bold: true));

    bytes += generator.text("Fatura: ${danfe?.dados?.cobr?.fat?.nFat ?? ''}");
    bytes += generator.text(
        "Valor Original: ${DanfeUtils.formatMoneyMilhar(danfe?.dados?.cobr?.fat?.vOrig ?? '', modeda: 'pt_BR', simbolo: moeda)}",
        styles: const PosStyles(align: PosAlign.center));
    bytes += generator.text(
        "Valor Liquido: ${DanfeUtils.formatMoneyMilhar(danfe?.dados?.cobr?.fat?.vLiq ?? '', modeda: 'pt_BR', simbolo: moeda)}",
        styles: const PosStyles(align: PosAlign.center));
    bytes += generator.hr();
    for (var duplicata in danfe?.dados?.cobr?.dup ?? []) {
      bytes += generator.text("Duplicata: ${duplicata.nDup ?? ''}");
      bytes += generator.text(
          "Vencimento: ${DanfeUtils.formatDate(duplicata.dVenc ?? '', dateOnly: true)}");
      bytes += generator.text("Valor: ${duplicata.nDup ?? ''}");

      bytes += generator.hr();
    }
    bytes += generator.rawBytes([27, 97, 48]);
  }

  bytes += generator.rawBytes([27, 97, 49]);
  bytes += generator.text('CHAVE DE ACESSO DA NOTA FISCAL',
      styles: const PosStyles(align: PosAlign.center));
  bytes += generator.text(
      DanfeUtils.splitByLength(danfe?.dados?.chaveNota ?? '', 4, ' '),
      styles: const PosStyles(align: PosAlign.center, bold: true));
  bytes += generator.rawBytes([27, 97, 49]);
  bytes += generator.qrcode(danfe?.qrcodePrinter ?? '',
      size: QRSize.size4, cor: QRCorrection.M);

  bytes += generator.rawBytes([27, 97, 48]);
  bytes += generator.feed(1);

  if (danfe?.dados?.ide?.serie != null) {
    final serie = (danfe?.dados?.ide?.serie ?? '0').padLeft(3, '0');
    final nnf = (danfe?.dados?.ide?.nNF ?? '0').padLeft(9, '0');
    bytes += generator.rawBytes([27, 97, 49]);

    bytes += generator.text('Nota $nnf Serie $serie ',
        styles: const PosStyles(align: PosAlign.center, bold: true));
    bytes += generator.rawBytes([27, 97, 48]);

    bytes += generator.feed(1);
  }

  if (danfe?.dados?.ide?.nserieSAT != null) {
    final serie = (danfe?.dados?.ide?.nserieSAT ?? '0').padLeft(3, '0');
    final nnf = (danfe?.dados?.ide?.nNF ?? '0').padLeft(9, '0');
    bytes += generator.rawBytes([27, 97, 49]);
    bytes += generator.text('Nota $nnf Serie $serie',
        styles: const PosStyles(align: PosAlign.center, bold: true));
    bytes += generator.rawBytes([27, 97, 48]);

    bytes += generator.feed(1);
  }

  if (danfe?.protNFe != null) {
    bytes += generator.row([
      PosColumn(
          text: 'Protocolo: ', width: 6, styles: const PosStyles(bold: true)),
      PosColumn(
          text: danfe?.protNFe?.infProt?.nProt ?? '',
          width: 6,
          styles: const PosStyles(
            align: PosAlign.right,
          )),
    ]);
    DateTime dateTime = DateTime.parse(danfe?.protNFe?.infProt?.dhRecbto ??
        DateTime.now().toIso8601String());
    String formattedDate =
        "${dateTime.day}/${dateTime.month}/${dateTime.year} ${dateTime.hour}:${dateTime.minute}:${dateTime.second}";

    bytes += generator.row([
      PosColumn(
          text: 'Data: ', width: 6, styles: const PosStyles(bold: true)),
      PosColumn(
          text: formattedDate,
          width: 6,
          styles: const PosStyles(
            align: PosAlign.right,
          )),
    ]);
    bytes += generator.feed(1);
  }

  if (danfe?.dados?.infAdic?.infCpl != null) {
    bytes += generator.text(danfe!.dados!.infAdic!.infCpl ?? ' ',
        styles: const PosStyles(align: PosAlign.center));
  }

  bytes += generator.cut();
  bytes += generator.reset();

  return bytes;
}