Added possibility for user to set PapperSize

packages/flutter_bluetooth_printer/example/lib/receipt_page.dart

@@ -38,6 +38,7 @@ class _ReceiptPageState extends State<ReceiptPage> {
           Expanded(
             child: Receipt(
               backgroundColor: Colors.grey.shade200,
+              paperSize: MyPapperSize(560, 80, 'Paper 80mm'),
               builder: (context) {
                 return Column(
                   mainAxisSize: MainAxisSize.min,
@@ -180,6 +181,17 @@ class _ReceiptPageState extends State<ReceiptPage> {
   }
 }
 
+class MyPapperSize extends PaperSize {
+  @override
+  final int width;
+  @override
+  final double paperWidthMM;
+  @override
+  final String name;
+
+  MyPapperSize(this.width, this.paperWidthMM, this.name);
+}
+
 class PrintingProgressDialog extends StatefulWidget {
   final String device;
   final ReceiptController controller;

packages/flutter_bluetooth_printer/lib/flutter_bluetooth_printer_library.dart

@@ -8,6 +8,7 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_bluetooth_printer/flutter_bluetooth_printer.dart';
 import 'package:flutter_bluetooth_printer_platform_interface/flutter_bluetooth_printer_platform_interface.dart';
 import 'package:image/image.dart' as img;
 import 'package:image/image.dart' hide Image, Color;

packages/flutter_bluetooth_printer/lib/src/flutter_bluetooth_printer_impl.dart

@@ -5,19 +5,10 @@ class DiscoveryResult extends DiscoveryState {
   DiscoveryResult({required this.devices});
 }
 
-enum PaperSize {
-  // original is 384 => 48 * 8
-  mm58(360, 58, 'Roll Paper 58mm'),
-  mm80(576, 80, 'Roll Paper 80mm');
-
-  final int width;
-  final double paperWidthMM;
-  final String name;
-  const PaperSize(
-    this.width,
-    this.paperWidthMM,
-    this.name,
-  );
+abstract class PaperSize {
+  int get width;
+  double get paperWidthMM;
+  String get name;
 }
 
 class FlutterBluetoothPrinter {
@@ -87,7 +78,7 @@ class FlutterBluetoothPrinter {
     required Uint8List imageBytes,
     required int imageWidth,
     required int imageHeight,
-    PaperSize paperSize = PaperSize.mm58,
+    required PaperSize paperSize,
     ProgressCallback? onProgress,
     int addFeeds = 0,
     bool useImageRaster = true,

packages/flutter_bluetooth_printer/lib/src/widgets/receipt.dart

@@ -3,7 +3,7 @@ part of flutter_bluetooth_printer;
 class ReceiptController with ChangeNotifier {
   final ReceiptState _state;
 
-  PaperSize _paperSize = PaperSize.mm58;
+  late PaperSize _paperSize; // = PaperSize.mm58;
   PaperSize get paperSize => _paperSize;
   set paperSize(PaperSize size) {
     _paperSize = size;
@@ -12,7 +12,9 @@ class ReceiptController with ChangeNotifier {
 
   ReceiptController._({
     required ReceiptState state,
-  }) : _state = state;
+    required PaperSize paperSize,
+  })  : _state = state,
+        _paperSize = paperSize;
 
   Future<bool> print({
     required String address,
@@ -40,6 +42,7 @@ class Receipt extends StatefulWidget {
   final Widget Function(BuildContext context, Widget child)? containerBuilder;
   final Color backgroundColor;
   final TextStyle? defaultTextStyle;
+  final PaperSize paperSize;
   final void Function(ReceiptController controller) onInitialized;
 
   const Receipt({
@@ -48,6 +51,7 @@ class Receipt extends StatefulWidget {
     this.backgroundColor = Colors.grey,
     required this.builder,
     required this.onInitialized,
+    required this.paperSize,
     this.containerBuilder,
   }) : super(key: key);
 
@@ -57,13 +61,14 @@ class Receipt extends StatefulWidget {
 
 class ReceiptState extends State<Receipt> {
   final _localKey = GlobalKey();
-  PaperSize _paperSize = PaperSize.mm58;
+  late PaperSize _paperSize;
   late ReceiptController controller;
 
   @override
   void initState() {
     super.initState();
-    controller = ReceiptController._(state: this);
+    _paperSize = widget.paperSize;
+    controller = ReceiptController._(state: this, paperSize: _paperSize);
     controller.addListener(_listener);
     Future.delayed(const Duration(milliseconds: 100), () {
       widget.onInitialized(controller);

pubspec.lock

@@ -57,6 +57,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.4.1"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
   collection:
     dependency: transitive
     description:
@@ -77,10 +85,10 @@ packages:
     dependency: transitive
     description:
       name: file
-      sha256: "1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d"
+      sha256: "5fc22d7c25582e38ad9a8515372cd9a93834027aacf1801cf01164dac0ffa08c"
       url: "https://pub.dev"
     source: hosted
-    version: "6.1.4"
+    version: "7.0.0"
   glob:
     dependency: transitive
     description:
@@ -113,6 +121,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.2"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      sha256: d6f56758b7d3014a48af9701c085700aac781a92a87a62b1333b46d8879661cf
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.19.0"
   io:
     dependency: transitive
     description:
@@ -141,10 +157,10 @@ packages:
     dependency: "direct main"
     description:
       name: melos
-      sha256: "96e64bbade5712c3f010137e195bca9f1b351fac34ab1f322af492ae34032067"
+      sha256: a3f06ed871e0348cb99909ad5ddf5f8b53cc61d894c302b5417d2db1ee7ec381
       url: "https://pub.dev"
     source: hosted
-    version: "3.4.0"
+    version: "6.1.0"
   meta:
     dependency: transitive
     description:
@@ -189,10 +205,10 @@ packages:
     dependency: transitive
     description:
       name: process
-      sha256: "53fd8db9cec1d37b0574e12f07520d582019cb6c44abf5479a01505099a34a09"
+      sha256: "21e54fd2faf1b5bdd5102afd25012184a6793927648ea81eea80552ac9405b32"
       url: "https://pub.dev"
     source: hosted
-    version: "4.2.4"
+    version: "5.0.2"
   prompts:
     dependency: transitive
     description:
@@ -213,10 +229,10 @@ packages:
     dependency: transitive
     description:
       name: pub_updater
-      sha256: b06600619c8c219065a548f8f7c192b3e080beff95488ed692780f48f69c0625
+      sha256: "54e8dc865349059ebe7f163d6acce7c89eb958b8047e6d6e80ce93b13d7c9e60"
       url: "https://pub.dev"
     source: hosted
-    version: "0.3.1"
+    version: "0.4.0"
   pubspec:
     dependency: transitive
     description:

pubspec.yaml

@@ -5,4 +5,4 @@ environment:
   flutter: ">=3.0.0"
 
 dependencies:
-  melos: ^3.1.0
+  melos: ^6.1.0