30 lines
914 B
Dart
30 lines
914 B
Dart
import 'dart:typed_data';
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import 'package:bluetooth_print_plus/bluetooth_print_plus.dart';
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Future<void> printLabelTest({
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required String productName,
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required String price,
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required String date,
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required String barcodeData,
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required Uint8List pngBytes,
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required bool isTwoInch,
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}) async {
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TscCommand tscCommand = TscCommand();
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await tscCommand.cleanCommand();
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await tscCommand.size(width: isTwoInch ? 45 : 38, height: 25); // mm
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await tscCommand.gap(2);
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await tscCommand.cls();
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await tscCommand.image(image: pngBytes, x: 0, y: 0);
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await tscCommand.print(1);
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final cmd = await tscCommand.getCommand();
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BluetoothPrintPlus.write(cmd);
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}
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String centerText(String text, {int lineWidth = 24}) {
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if (text.length >= lineWidth) return text;
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int totalPadding = lineWidth - text.length;
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int leftPadding = totalPadding ~/ 2; // only add left padding
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return ' ' * leftPadding + text;
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}
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