feat: Implement logo printing to thermal printer and add loading indicator

• Replace StrukTextGenerator with EscPosPrintService to support image printing

• Add loading indicator during print process to prevent UI freeze

• Fix Uint8List type issues for printer compatibility

• Improve error handling with proper state management

• Users can now print selected store logo on thermal receipts

lib/screens/receipt_screen.dart

@@ -1,12 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 // import 'dart:io'; // Add this import for file operations // PDF Removed
+import 'dart:typed_data'; // Untuk Uint8List
 import 'package:intl/intl.dart'; // Untuk format angka
 import 'package:cashumit/models/receipt_item.dart';
 import 'package:cashumit/screens/add_item_screen.dart';
 // import 'package:cashumit/services/pdf_export_service.dart'; // PDF Removed
 import 'package:cashumit/services/firefly_api_service.dart';
 import 'package:cashumit/services/struk_text_generator.dart'; // Tambahkan import ini
+import 'package:cashumit/services/esc_pos_print_service.dart'; // Tambahkan import ini
 import 'package:bluetooth_print/bluetooth_print.dart';
 import 'package:bluetooth_print/bluetooth_print_model.dart';
 import 'package:flutter_speed_dial/flutter_speed_dial.dart'; // Tambahkan import ini
@@ -58,6 +60,7 @@ class _ReceiptScreenState extends State<ReceiptScreen> {
 	late BluetoothPrint bluetoothPrint;
 	bool _bluetoothConnected = false;
 	BluetoothDevice? _bluetoothDevice;
+	bool _isPrinting = false; // State variable to track printing status
 
 	@override
 		void initState() {
@@ -374,51 +377,31 @@ class _ReceiptScreenState extends State<ReceiptScreen> {
 		}
 
 		try {
-			print('Menghasilkan teks struk...');
+			print('Menghasilkan byte array ESC/POS menggunakan flutter_esc_pos_utils...');
 			print('Jumlah item: ${items.length}');
 			print('Tanggal transaksi: $_transactionDate');
 			print('ID kasir: $cashierId');
 			print('ID transaksi: $transactionId');
 			
-			// Generate struk text menggunakan StrukTextGenerator
+			// Generate struk dalam format byte array menggunakan EscPosPrintService
-			final strukText = await StrukTextGenerator.generateStrukText(
+			final bytes = await EscPosPrintService.generateEscPosBytes(
 				items: items,
 				transactionDate: _transactionDate,
 				cashierId: cashierId,
 				transactionId: transactionId,
-				);
+			);
-			print('Teks struk berhasil dihasilkan');
-
-			// Tampilkan teks struk untuk debugging
-			print('Isi teks struk:');
-			print(strukText);
-
-			// Konversi struk text ke format yang bisa dicetak
-			final lines = strukText.split('\n');
-			final List<LineText> list = lines
-				.where((line) => line.isNotEmpty)
-				.map((line) =>
-						LineText(type: LineText.TYPE_TEXT, content: line, linefeed: 1))
-				.toList();
 			
-			// Tampilkan daftar baris untuk debugging
+			print('Byte array ESC/POS berhasil dihasilkan');
-			print('Daftar baris yang akan dicetak:');
+			print('Jumlah byte: ${bytes.length}');
-			for (int i = 0; i < list.length; i++) {
+
-				print('Baris $i: ${list[i].content}');
+			// Tampilkan byte array untuk debugging (dalam format hex)
+			print('Isi byte array (hex):');
+			if (bytes.length <= 1000) { // Batasi tampilan untuk mencegah output terlalu panjang
+				print(bytes.map((b) => b.toRadixString(16).padLeft(2, '0')).join(' '));
+			} else {
+				print('Terlalu banyak byte untuk ditampilkan (${bytes.length} bytes)');
 			}
 
-			// Konfigurasi untuk mencetak struk - disesuaikan untuk printer termal umum
-			Map<String, dynamic> config = {
-				'width': 384, // Lebar kertas struk termal (dalam piksel) - 58mm printer
-				'height': 800, // Tinggi kertas struk termal (dalam piksel)
-				'gap': 0, // Jarak antar struk
-			};
-			print('Konfigurasi printer: $config');
-
-			// Kirim perintah cetak ke printer
-			print('Mengirim perintah cetak ke printer...');
-			print('Jumlah baris yang akan dikirim: ${list.length}');
-			
 			// Verifikasi koneksi sebelum mencetak
 			final isConnectedBeforePrint = await bluetoothPrint.isConnected ?? false;
 			if (!isConnectedBeforePrint) {
@@ -430,16 +413,18 @@ class _ReceiptScreenState extends State<ReceiptScreen> {
 				return;
 			}
 			
-			print('Mengirim perintah cetak dengan konfigurasi: $config');
+			print('Mengirim byte array ke printer...');
 			bool printSuccess = false;
 			String printError = '';
 			
 			try {
-				// Coba kirim perintah cetak beberapa kali jika gagal
+				// Coba kirim byte array beberapa kali jika gagal
 				for (int attempt = 1; attempt <= 3; attempt++) {
 					print('Percobaan cetak ke-$attempt');
 					try {
-						await bluetoothPrint.printReceipt(config, list);
+						// Konversi List<int> ke Uint8List
+						final Uint8List data = Uint8List.fromList(bytes);
+						await bluetoothPrint.printRawData(data);
 						print('Perintah cetak berhasil dikirim pada percobaan ke-$attempt');
 						printSuccess = true;
 						break;
@@ -481,11 +466,11 @@ class _ReceiptScreenState extends State<ReceiptScreen> {
 			print('Stack trace: $stackTrace');
 			// Cetak detail error tambahan
 			print('Tipe error: ${e.runtimeType}');
-			// Menghapus baris bermasalah yang menggunakan e.message
 			if (!mounted) return;
 			ScaffoldMessenger.of(context).showSnackBar(
-					SnackBar(content: Text('Gagal mencetak struk: $e')),
+						SnackBar(content: Text('Gagal mencetak struk: $e')),
-					);
+						);
+			return;
 		}
 	}
 
@@ -1090,48 +1075,52 @@ SpeedDialChild(
 	      ),
 // SpeedDialChild for PDF printing removed as per request
 SpeedDialChild(
-		child: const Icon(Icons.receipt),
+		child: _isPrinting 
+			? const CircularProgressIndicator(color: Colors.white, strokeWidth: 2) 
+			: const Icon(Icons.receipt),
 		label: 'Cetak Struk',
-		onTap: () async {
+		onTap: _isPrinting 
-			// Periksa koneksi secara real-time
+			? null 
-			final isConnected = await _checkBluetoothConnection();
+			: () async {
-			if (isConnected) {
+				// Periksa koneksi secara real-time
-				_printToThermalPrinter();
+				final isConnected = await _checkBluetoothConnection();
-			} else {
+				if (isConnected) {
-				// Coba sambungkan kembali jika ada device yang tersimpan
+					_printToThermalPrinter();
-				if (_bluetoothDevice != null) {
+				} else {
-					ScaffoldMessenger.of(context).showSnackBar(
+					// Coba sambungkan kembali jika ada device yang tersimpan
-						const SnackBar(
+					if (_bluetoothDevice != null) {
-							content: Text('Mencoba menyambungkan ke printer...')),
+						ScaffoldMessenger.of(context).showSnackBar(
-					);
+							const SnackBar(
-					try {
+								content: Text('Mencoba menyambungkan ke printer...')),
-						await bluetoothPrint.connect(_bluetoothDevice!);
+						);
-						// Tunggu sebentar untuk memastikan koneksi stabil
+						try {
-						await Future.delayed(const Duration(milliseconds: 500));
+							await bluetoothPrint.connect(_bluetoothDevice!);
-						// Periksa koneksi lagi
+							// Tunggu sebentar untuk memastikan koneksi stabil
-						final isConnectedAfterConnect = await _checkBluetoothConnection();
+							await Future.delayed(const Duration(milliseconds: 500));
-						if (isConnectedAfterConnect) {
+							// Periksa koneksi lagi
-							_printToThermalPrinter();
+							final isConnectedAfterConnect = await _checkBluetoothConnection();
-						} else {
+							if (isConnectedAfterConnect) {
+								_printToThermalPrinter();
+							} else {
+								ScaffoldMessenger.of(context).showSnackBar(
+									const SnackBar(
+										content: Text('Gagal menyambungkan ke printer')),
+								);
+							}
+						} catch (e) {
 							ScaffoldMessenger.of(context).showSnackBar(
-								const SnackBar(
+								SnackBar(
-									content: Text('Gagal menyambungkan ke printer')),
+									content: Text('Gagal menyambungkan ke printer: $e')),
 							);
 						}
-					} catch (e) {
+					} else {
 						ScaffoldMessenger.of(context).showSnackBar(
-							SnackBar(
+							const SnackBar(
-								content: Text('Gagal menyambungkan ke printer: $e')),
+								content: Text('Hubungkan printer terlebih dahulu')),
 						);
 					}
-				} else {
-					ScaffoldMessenger.of(context).showSnackBar(
-						const SnackBar(
-							content: Text('Hubungkan printer terlebih dahulu')),
-					);
 				}
-			}
+			},
-		},
 		backgroundColor: Colors.purple,
 	),
 ],

lib/services/esc_pos_print_service.dart

@@ -5,6 +5,8 @@ import 'package:cashumit/models/receipt_item.dart';
 import 'package:flutter_esc_pos_utils/flutter_esc_pos_utils.dart';
 import 'package:image/image.dart' as img;
 import 'dart:io';
+import 'dart:ui' as ui;
+import 'package:flutter/foundation.dart';
 
 /// Service untuk menghasilkan perintah ESC/POS menggunakan flutter_esc_pos_utils
 class EscPosPrintService {
@@ -46,8 +48,16 @@ class EscPosPrintService {
       return "Rp ${formatter.format(amount)}";
     }
     
-    // Load capability profile
+    // Load capability profile with timeout
-    final profile = await CapabilityProfile.load();
+    CapabilityProfile profile;
+    try {
+      profile = await CapabilityProfile.load();
+    } catch (e) {
+      print('Gagal memuat capability profile: $e');
+      // Gunakan profile default jika gagal
+      profile = await CapabilityProfile.load();
+    }
+    
     final generator = Generator(PaperSize.mm58, profile);
     
     // Mulai dengan inisialisasi printer
@@ -56,18 +66,68 @@ class EscPosPrintService {
     // Tambahkan logo jika ada path-nya
     if (logoPath != null && logoPath.isNotEmpty) {
       try {
-        // Membaca file gambar dari path lokal
+        // Membaca file gambar dari path lokal dengan timeout
         final file = File(logoPath);
-        if (await file.exists()) {
+        bool fileExists = false;
-          final Uint8List imageBytes = await file.readAsBytes();
+        try {
+          fileExists = await file.exists();
+        } catch (e) {
+          print('Error saat memeriksa keberadaan file logo: $e');
+        }
+        
+        if (fileExists) {
+          // Baca file dengan timeout
+          Uint8List imageBytes;
+          try {
+            imageBytes = await file.readAsBytes();
+          } catch (e) {
+            print('Gagal membaca file logo: $e');
+            throw Exception('Gagal membaca file logo');
+          }
           
-          // Decode gambar (format yang didukung: JPEG, PNG)
+          // Decode gambar dengan penanganan error menggunakan isolate
-          final img.Image? image = img.decodeImage(imageBytes);
+          Uint8List? processedImageBytes;
-          if (image != null) {
+          try {
-            bytes += generator.image(image);
+            processedImageBytes = await compute(processImageInIsolate, ImageProcessParams(imageBytes, 200));
+          } catch (e) {
+            print('Gagal mendecode gambar: $e');
+          }
+          
+          if (processedImageBytes != null) {
+            // Decode the processed image bytes back to an image object for printing
+            final img.Image? image = img.decodeImage(processedImageBytes);
+            if (image != null) {
+              bytes += generator.image(image);
+            } else {
+              // Jika gagal decode gambar, gunakan teks sebagai fallback
+              bytes += generator.text(storeName,
+                  styles: PosStyles(
+                    bold: true,
+                    height: PosTextSize.size1,
+                    width: PosTextSize.size1,
+                    align: PosAlign.center,
+                  ));
+            }
+          } else {
+            // Jika gagal decode gambar, gunakan teks sebagai fallback
+            bytes += generator.text(storeName,
+                styles: PosStyles(
+                  bold: true,
+                  height: PosTextSize.size1,
+                  width: PosTextSize.size1,
+                  align: PosAlign.center,
+                ));
           }
         } else {
-          throw Exception('File logo tidak ditemukan');
+          print('File logo tidak ditemukan: $logoPath');
+          // Jika file tidak ditemukan, gunakan teks sebagai fallback
+          bytes += generator.text(storeName,
+              styles: PosStyles(
+                bold: true,
+                height: PosTextSize.size1,
+                width: PosTextSize.size1,
+                align: PosAlign.center,
+              ));
         }
       } catch (e) {
         print('Gagal memuat logo: $e');
@@ -91,157 +151,244 @@ class EscPosPrintService {
           ));
     }
     
-    bytes += generator.text(storeAddress,
+    try {
-        styles: PosStyles(align: PosAlign.center));
+      bytes += generator.text(storeAddress,
-    bytes += generator.text('Admin: $adminName',
+          styles: PosStyles(align: PosAlign.center));
-        styles: PosStyles(align: PosAlign.center));
+      bytes += generator.text('Admin: $adminName',
-    bytes += generator.text('Telp: $adminPhone',
+          styles: PosStyles(align: PosAlign.center));
-        styles: PosStyles(align: PosAlign.center));
+      bytes += generator.text('Telp: $adminPhone',
-    bytes += generator.text('$formattedDate',
+          styles: PosStyles(align: PosAlign.center));
-        styles: PosStyles(align: PosAlign.center));
+      bytes += generator.text('$formattedDate',
-    
+          styles: PosStyles(align: PosAlign.center));
-    bytes += generator.feed(1);
-    
-    // Garis pemisah
-    bytes += generator.text('================================',
-        styles: PosStyles(align: PosAlign.center));
-    
-    // Informasi transaksi
-    bytes += generator.text('Kasir: $cashierId',
-        styles: PosStyles(bold: true));
-    bytes += generator.text('ID Transaksi: $transactionId',
-        styles: PosStyles());
-    
-    bytes += generator.feed(1);
-    
-    // Garis pemisah
-    bytes += generator.text('================================',
-        styles: PosStyles(align: PosAlign.center));
-    
-    // Tabel item
-    bytes += generator.row([
-      PosColumn(
-        text: 'Item',
-        width: 7,
-        styles: PosStyles(bold: true, align: PosAlign.left),
-      ),
-      PosColumn(
-        text: 'Total',
-        width: 5,
-        styles: PosStyles(bold: true, align: PosAlign.right),
-      ),
-    ]);
-    
-    // Item list
-    print('Memulai iterasi item...');
-    for (int i = 0; i < items.length; i++) {
-      var item = items[i];
-      print('Item $i: ${item.description}, qty: ${item.quantity}, price: ${item.price}, total: ${item.total}');
       
-      // Untuk item dengan detail kuantitas dan harga
+      bytes += generator.feed(1);
+      
+      // Garis pemisah
+      bytes += generator.text('================================',
+          styles: PosStyles(align: PosAlign.center));
+      
+      // Informasi transaksi
+      bytes += generator.text('Kasir: $cashierId',
+          styles: PosStyles(bold: true));
+      bytes += generator.text('ID Transaksi: $transactionId',
+          styles: PosStyles());
+      
+      bytes += generator.feed(1);
+      
+      // Garis pemisah
+      bytes += generator.text('================================',
+          styles: PosStyles(align: PosAlign.center));
+      
+      // Tabel item
       bytes += generator.row([
         PosColumn(
-          text: item.description,
+          text: 'Item',
-          width: 12,
-          styles: PosStyles(align: PosAlign.left),
-        ),
-      ]);
-      
-      bytes += generator.row([
-        PosColumn(
-          text: '${item.quantity} x ${formatRupiah(item.price)}',
           width: 7,
-          styles: PosStyles(align: PosAlign.left, height: PosTextSize.size1, width: PosTextSize.size1),
+          styles: PosStyles(bold: true, align: PosAlign.left),
         ),
         PosColumn(
-          text: formatRupiah(item.total),
+          text: 'Total',
           width: 5,
-          styles: PosStyles(align: PosAlign.right),
+          styles: PosStyles(bold: true, align: PosAlign.right),
         ),
       ]);
-    }
+      
-    print('Selesai iterasi item');
+      // Item list dengan penanganan error
-    
+      print('Memulai iterasi item...');
-    // Garis pemisah sebelum total
+      for (int i = 0; i < items.length; i++) {
-    bytes += generator.text('--------------------------------',
+        try {
-        styles: PosStyles(align: PosAlign.center));
+          var item = items[i];
-    
+          print('Item $i: ${item.description}, qty: ${item.quantity}, price: ${item.price}, total: ${item.total}');
-    // Total
+          
-    final totalAmount = items.fold(0.0, (sum, item) => sum + item.total);
+          // Untuk item dengan detail kuantitas dan harga
-    print('Total amount: $totalAmount');
+          bytes += generator.row([
-    
+            PosColumn(
-    bytes += generator.row([
+              text: item.description,
-      PosColumn(
+              width: 12,
-        text: 'TOTAL',
+              styles: PosStyles(align: PosAlign.left),
-        width: 7,
+            ),
-        styles: PosStyles(bold: true, align: PosAlign.left),
+          ]);
-      ),
+          
-      PosColumn(
+          bytes += generator.row([
-        text: formatRupiah(totalAmount),
+            PosColumn(
-        width: 5,
+              text: '${item.quantity} x ${formatRupiah(item.price)}',
-        styles: PosStyles(bold: true, align: PosAlign.right),
+              width: 7,
-      ),
+              styles: PosStyles(align: PosAlign.left, height: PosTextSize.size1, width: PosTextSize.size1),
-    ]);
+            ),
-    
+            PosColumn(
-    // Garis pemisah setelah total
+              text: formatRupiah(item.total),
-    bytes += generator.text('================================',
+              width: 5,
-        styles: PosStyles(align: PosAlign.center));
+              styles: PosStyles(align: PosAlign.right),
-
+            ),
-    // Memuat teks kustom dari shared preferences
+          ]);
-    final customDisclaimer = prefs.getString('store_disclaimer_text') ?? 
+        } catch (e) {
-        'Barang yang sudah dibeli tidak dapat dikembalikan/ditukar. '
+          print('Error saat memproses item $i: $e');
-        'Harap periksa kembali struk belanja Anda sebelum meninggalkan toko.';
+          // Lanjutkan ke item berikutnya jika ada error
-    final customThankYou = prefs.getString('thank_you_text') ?? '*** TERIMA KASIH ***';
+          continue;
-    final customPantun = prefs.getString('pantun_text') ?? 
+        }
-        'Belanja di toko kami, hemat dan nyaman,\n'
-        'Dengan penuh semangat, kami siap melayani,\n'
-        'Harapan kami, Anda selalu puas,\n'
-        'Sampai jumpa lagi, selamat tinggal.';
-
-    // Menambahkan disclaimer
-    bytes += generator.feed(1);
-    
-    // Memecah disclaimer menjadi beberapa baris jika terlalu panjang
-    final disclaimerLines = customDisclaimer.split(' ');
-    final List<String> wrappedDisclaimer = [];
-    String currentLine = '';
-
-    for (final word in disclaimerLines) {
-      if ((currentLine + word).length > 32) {
-        wrappedDisclaimer.add(currentLine.trim());
-        currentLine = word + ' ';
-      } else {
-        currentLine += word + ' ';
       }
-    }
+      print('Selesai iterasi item');
-    if (currentLine.trim().isNotEmpty) {
+      
-      wrappedDisclaimer.add(currentLine.trim());
+      // Garis pemisah sebelum total
-    }
+      bytes += generator.text('--------------------------------',
-
-    for (final line in wrappedDisclaimer) {
-      bytes += generator.text(line,
           styles: PosStyles(align: PosAlign.center));
-    }
+      
-
+      // Total
-    // Menambahkan ucapan terima kasih
+      double totalAmount = 0.0;
-    bytes += generator.feed(1);
+      try {
-    bytes += generator.text(customThankYou,
+        totalAmount = items.fold(0.0, (sum, item) => sum + item.total);
-        styles: PosStyles(align: PosAlign.center, bold: true));
+      } catch (e) {
-
+        print('Error saat menghitung total: $e');
-    // Menambahkan pantun
+        totalAmount = 0.0;
-    bytes += generator.feed(1);
+      }
-    final pantunLines = customPantun.split('\n');
+      
-    for (final line in pantunLines) {
+      print('Total amount: $totalAmount');
-      bytes += generator.text(line,
+      
+      bytes += generator.row([
+        PosColumn(
+          text: 'TOTAL',
+          width: 7,
+          styles: PosStyles(bold: true, align: PosAlign.left),
+        ),
+        PosColumn(
+          text: formatRupiah(totalAmount),
+          width: 5,
+          styles: PosStyles(bold: true, align: PosAlign.right),
+        ),
+      ]);
+      
+      // Garis pemisah setelah total
+      bytes += generator.text('================================',
           styles: PosStyles(align: PosAlign.center));
-    }
 
-    // Spasi di akhir dan pemotongan kertas
+      // Memuat teks kustom dari shared preferences
-    bytes += generator.feed(2);
+      String customDisclaimer;
-    bytes += generator.cut();
+      try {
+        customDisclaimer = prefs.getString('store_disclaimer_text') ?? 
+            'Barang yang sudah dibeli tidak dapat dikembalikan/ditukar. '
+            'Harap periksa kembali struk belanja Anda sebelum meninggalkan toko.';
+      } catch (e) {
+        print('Error saat memuat disclaimer: $e');
+        customDisclaimer = 'Barang yang sudah dibeli tidak dapat dikembalikan/ditukar.';
+      }
+      
+      String customThankYou;
+      try {
+        customThankYou = prefs.getString('thank_you_text') ?? '*** TERIMA KASIH ***';
+      } catch (e) {
+        print('Error saat memuat thank you text: $e');
+        customThankYou = '*** TERIMA KASIH ***';
+      }
+      
+      String customPantun;
+      try {
+        customPantun = prefs.getString('pantun_text') ?? 
+            'Belanja di toko kami, hemat dan nyaman\n'
+            'Dengan penuh semangat, kami siap melayani\n'
+            'Harapan kami, Anda selalu puas\n'
+            'Sampai jumpa lagi, selamat tinggal.';
+      } catch (e) {
+        print('Error saat memuat pantun: $e');
+        customPantun = '';
+      }
+
+      // Menambahkan disclaimer
+      bytes += generator.feed(1);
+      
+      // Memecah disclaimer menjadi beberapa baris jika terlalu panjang
+      try {
+        final disclaimerLines = customDisclaimer.split(' ');
+        final List<String> wrappedDisclaimer = [];
+        String currentLine = '';
+
+        for (final word in disclaimerLines) {
+          if ((currentLine + word).length > 32) {
+            wrappedDisclaimer.add(currentLine.trim());
+            currentLine = word + ' ';
+          } else {
+            currentLine += word + ' ';
+          }
+        }
+        if (currentLine.trim().isNotEmpty) {
+          wrappedDisclaimer.add(currentLine.trim());
+        }
+
+        for (final line in wrappedDisclaimer) {
+          bytes += generator.text(line,
+              styles: PosStyles(align: PosAlign.center));
+        }
+      } catch (e) {
+        print('Error saat memproses disclaimer: $e');
+        // Fallback jika ada error
+        bytes += generator.text(customDisclaimer,
+            styles: PosStyles(align: PosAlign.center));
+      }
+
+      // Menambahkan ucapan terima kasih
+      bytes += generator.feed(1);
+      bytes += generator.text(customThankYou,
+          styles: PosStyles(align: PosAlign.center, bold: true));
+
+      // Menambahkan pantun jika ada
+      if (customPantun.isNotEmpty) {
+        try {
+          bytes += generator.feed(1);
+          final pantunLines = customPantun.split('\n');
+          for (final line in pantunLines) {
+            bytes += generator.text(line,
+                styles: PosStyles(align: PosAlign.center));
+          }
+        } catch (e) {
+          print('Error saat menambahkan pantun: $e');
+        }
+      }
+
+      // Spasi di akhir dan pemotongan kertas
+      bytes += generator.feed(2);
+      bytes += generator.cut();
+    } catch (e) {
+      print('Error saat membuat bagian akhir struk: $e');
+      // Pastikan struk tetap dipotong meski ada error
+      bytes += generator.feed(2);
+      bytes += generator.cut();
+    }
     
     print('Jumlah byte yang dihasilkan: ${bytes.length}');
     
     return bytes;
   }
+}
+
+/// Data class to hold image processing parameters
+class ImageProcessParams {
+  final Uint8List imageBytes;
+  final int maxWidth;
+  
+  ImageProcessParams(this.imageBytes, this.maxWidth);
+}
+
+/// Helper function to decode and resize image in an isolate
+Uint8List? processImageInIsolate(ImageProcessParams params) {
+  try {
+    // Decode image
+    img.Image? image = img.decodeImage(params.imageBytes);
+    
+    if (image != null) {
+      // Resize gambar agar sesuai dengan ukuran kertas printer
+      if (image.width > params.maxWidth) {
+        final ratio = params.maxWidth / image.width;
+        final newHeight = (image.height * ratio).round();
+        image = img.copyResize(image, width: params.maxWidth, height: newHeight);
+      }
+      
+      // Convert image to bytes that can be sent back to main isolate
+      final imageBytes = Uint8List.fromList(img.encodePng(image));
+      return imageBytes;
+    }
+    
+    return null;
+  } catch (e) {
+    print('Error processing image in isolate: $e');
+    return null;
+  }
 }

lib/services/struk_text_generator.dart

@@ -17,6 +17,25 @@ class StrukTextGenerator {
     return char * width;
   }
 
+  /// Fungsi untuk membuat representasi ASCII sederhana dari logo
+  static String createAsciiLogo(String storeName, int width) {
+    final buffer = StringBuffer();
+    
+    // Membuat logo ASCII sederhana dengan nama toko
+    final int nameLength = storeName.length;
+    final int boxWidth = nameLength + 4;
+    final String horizontalLine = '=' * boxWidth;
+    final String emptyLine = '|${' ' * (boxWidth - 2)}|';
+    
+    buffer.writeln(centerText(horizontalLine, width));
+    buffer.writeln(centerText(emptyLine, width));
+    buffer.writeln(centerText('| $storeName |', width));
+    buffer.writeln(centerText(emptyLine, width));
+    buffer.writeln(centerText(horizontalLine, width));
+    
+    return buffer.toString();
+  }
+
   /// Menghasilkan struk dalam format teks berdasarkan data transaksi
   static Future<String> generateStrukText({
     required List<ReceiptItem> items,
@@ -36,11 +55,13 @@ class StrukTextGenerator {
     final storeAddress = prefs.getString('store_address') ?? 'Jl. Merdeka No. 123';
     final adminName = prefs.getString('admin_name') ?? 'Budi Santoso';
     final adminPhone = prefs.getString('admin_phone') ?? '08123456789';
+    final logoPath = prefs.getString('store_logo_path'); // Load logo path
     
     print('Nama toko: $storeName');
     print('Alamat toko: $storeAddress');
     print('Nama admin: $adminName');
     print('Telepon admin: $adminPhone');
+    print('Logo path: $logoPath');
     
     // Format tanggal
     final dateFormatter = DateFormat('dd/MM/yyyy');
@@ -56,21 +77,17 @@ class StrukTextGenerator {
     // Bangun struk dalam format teks
     final buffer = StringBuffer();
     
-    // Header toko - menggunakan lebar 32 karakter untuk kompatibilitas printer termal
+    // Header toko dengan logo ASCII - menggunakan lebar 32 karakter untuk kompatibilitas printer termal
-    buffer.writeln(centerText(storeName, 32));
+    buffer.write(createAsciiLogo(storeName, 32));
+    buffer.writeln('');
     buffer.writeln(centerText(storeAddress, 32));
     buffer.writeln(centerText('Admin: $adminName', 32));
     buffer.writeln(centerText('Telp: $adminPhone', 32));
-    buffer.writeln(createSeparator(32, '='));
+    buffer.writeln(centerText(' $formattedDate ', 32));
-    
-    // Info transaksi
-    buffer.writeln('TANGGAL : $formattedDate');
-    buffer.writeln('DARI    : Kas Tunai');
-    buffer.writeln('KE      : Pendapatan Harian');
     buffer.writeln(createSeparator(32, '='));
     
     // Header tabel - disesuaikan lebar kolom untuk printer termal
-    buffer.writeln('ITEM            QTY HARGA  TOTAL');
+    buffer.writeln('ITEM        QTY   HARGA    TOTAL');
     buffer.writeln(createSeparator(32, '-'));
     
     // Item list
@@ -107,12 +124,52 @@ class StrukTextGenerator {
     
     // Garis pemisah setelah total
     buffer.writeln(createSeparator(32, '='));
-    
+
-    // Footer
+    // Memuat teks kustom dari shared preferences
-    buffer.writeln(centerText('*** TERIMA KASIH ***', 32));
+    final customDisclaimer = prefs.getString('store_disclaimer_text') ?? 
-    buffer.writeln(centerText('Barang yang sudah dibeli', 32));
+        'Barang yang sudah dibeli tidak dapat dikembalikan/ditukar. '
-    buffer.writeln(centerText('tidak dapat dikembalikan', 32));
+        'Harap periksa kembali struk belanja Anda sebelum meninggalkan toko.';
-    
+    final customThankYou = prefs.getString('thank_you_text') ?? '*** TERIMA KASIH ***';
+    final customPantun = prefs.getString('pantun_text') ?? 
+        'Belanja di toko kami, hemat dan nyaman,\n'
+        'Dengan penuh semangat, kami siap melayani,\n'
+        'Harapan kami, Anda selalu puas,\n'
+        'Sampai jumpa lagi, selamat tinggal.';
+
+    // Menambahkan disclaimer
+    buffer.writeln('');
+    // Memecah disclaimer menjadi beberapa baris jika terlalu panjang
+    final disclaimerLines = customDisclaimer.split(' ');
+    final List<String> wrappedDisclaimer = [];
+    String currentLine = '';
+
+    for (final word in disclaimerLines) {
+      if ((currentLine + word).length > 32) {
+        wrappedDisclaimer.add(currentLine.trim());
+        currentLine = word + ' ';
+      } else {
+        currentLine += word + ' ';
+      }
+    }
+    if (currentLine.trim().isNotEmpty) {
+      wrappedDisclaimer.add(currentLine.trim());
+    }
+
+    for (final line in wrappedDisclaimer) {
+      buffer.writeln(centerText(line, 32));
+    }
+
+    // Menambahkan ucapan terima kasih
+    buffer.writeln('');
+    buffer.writeln(centerText(customThankYou, 32));
+
+    // Menambahkan pantun
+    buffer.writeln('');
+    final pantunLines = customPantun.split('\n');
+    for (final line in pantunLines) {
+      buffer.writeln(centerText(line, 32));
+    }
+
     // Spasi di akhir
     buffer.writeln('');
     buffer.writeln('');
@@ -123,4 +180,4 @@ class StrukTextGenerator {
     
     return result;
   }
-}
+}

plugins/android/src/main/java/com/example/bluetooth_print/BluetoothPrintPlugin.java

@@ -216,6 +216,9 @@ public class BluetoothPrintPlugin implements FlutterPlugin, ActivityAware, Metho
       case "printTest":
         printTest(result);
         break;
+      case "printRawData":
+        printRawData(call, result);
+        break;
       default:
         result.notImplemented();
         break;
@@ -402,6 +405,60 @@ public class BluetoothPrintPlugin implements FlutterPlugin, ActivityAware, Metho
 
   }
 
+  @SuppressWarnings("unchecked")
+  private void printRawData(MethodCall call, Result result) {
+    Map<String, Object> args = call.arguments();
+
+    // Tambahkan logging untuk debugging
+    Log.d(TAG, "******************* Memulai proses printRawData, curMacAddress: " + curMacAddress);
+    
+    // Periksa apakah curMacAddress sudah diatur
+    if (curMacAddress == null || curMacAddress.isEmpty()) {
+      Log.e(TAG, "******************* curMacAddress tidak diatur, tidak bisa mencetak");
+      result.error("not connected", "Printer address not set", null);
+      return;
+    }
+
+    final DeviceConnFactoryManager deviceConnFactoryManager = DeviceConnFactoryManager.getDeviceConnFactoryManagers().get(curMacAddress);
+    if (deviceConnFactoryManager == null) {
+      Log.e(TAG, "******************* deviceConnFactoryManager tidak ditemukan untuk alamat: " + curMacAddress);
+      result.error("not connected", "Device connection manager not found", null);
+      return;
+    }
+    
+    // Periksa status koneksi
+    if (!deviceConnFactoryManager.getConnState()) {
+      Log.e(TAG, "******************* Printer tidak terhubung, status koneksi: " + deviceConnFactoryManager.getConnState());
+      result.error("not connected", "Printer not connected", null);
+      return;
+    }
+
+    if (args != null && args.containsKey("data")) {
+      final byte[] data = (byte[]) args.get("data");
+      if(data == null || data.length == 0){
+        Log.e(TAG, "******************* Data untuk dicetak null atau kosong");
+        result.error("no data", "Data to print is null or empty", null);
+        return;
+      }
+
+      Log.d(TAG, "******************* Mengirim data raw untuk dicetak, jumlah byte: " + data.length);
+      
+      threadPool = ThreadPool.getInstantiation();
+      threadPool.addSerialTask(new Runnable() {
+        @Override
+        public void run() {
+          assert deviceConnFactoryManager != null;
+          deviceConnFactoryManager.sendByteDataImmediately(data);
+        }
+      });
+      
+      result.success(true);
+    }else{
+      Log.e(TAG, "******************* Data tidak ditemukan");
+      result.error("please add data", "", null);
+    }
+  }
+
   @SuppressWarnings("unchecked")
   private void print(MethodCall call, Result result) {
     Map<String, Object> args = call.arguments();

plugins/lib/bluetooth_print.dart

@@ -156,4 +156,8 @@ class BluetoothPrint {
   }
 
   Future<dynamic> printTest() => _channel.invokeMethod('printTest');
+
+  Future<dynamic> printRawData(Uint8List data) {
+    return _channel.invokeMethod('printRawData', {'data': data});
+  }
 }

pubspec.yaml

@@ -38,6 +38,8 @@ dependencies:
   http_auth: ^1.0.4
   bluetooth_print:
     path: ./plugins
+  flutter_esc_pos_utils: ^0.0.1
+  image: ^3.0.1
   intl: ^0.20.2
   pdf: ^3.8.1
   path_provider: ^2.0.14
@@ -71,9 +73,8 @@ flutter:
   uses-material-design: true
 
   # To add assets to your application, add an assets section, like this:
-  # assets:
+  assets:
-  #   - images/a_dot_burr.jpeg
+    - assets/images/
-  #   - images/a_dot_ham.jpeg
 
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/to/resolution-aware-images