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impression

master
Stephane 4 months ago
parent
ea3be45c06
commit
f65ab1e397
3 changed files with 478 additions and 196 deletions
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  1. 198
      lib/pages/facture_screen.dart
  2. 475
      lib/services/pdf_service.dart
  3. 1
      pubspec.yaml

198
lib/pages/facture_screen.dart
View File

@ -1,4 +1,6 @@
// pages/facture_screen.dart
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import '../models/command_detail.dart';
@ -255,51 +257,183 @@ class _FactureScreenState extends State<FactureScreen> {
}
void _printReceipt() async {
bool isPrinting;
setState(() => isPrinting = true);
try {
HapticFeedback.lightImpact();
// Vérifier si l'impression est disponible
final canPrint = await PlatformPrintService.canPrint();
final success = await PdfService.printFacture(
commande: widget.commande,
paymentMethod: widget.paymentMethod,
);
if (!canPrint) {
// Si pas d'imprimante, proposer seulement la sauvegarde
_showSaveOnlyDialog();
return;
}
if (success) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: const Row(
// Afficher les options d'impression
final action = await showDialog<String>(
context: context,
builder: (BuildContext context) {
return AlertDialog(
title: Row(
children: [
Icon(Icons.check_circle, color: Colors.white),
SizedBox(width: 8),
Text('Facture envoyée à l\'impression'),
Icon(Icons.print, color: Theme.of(context).primaryColor),
const SizedBox(width: 8),
const Text('Options d\'impression'),
],
),
backgroundColor: const Color(0xFF28A745),
duration: const Duration(seconds: 2),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(6),
content: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'Plateforme: ${_getPlatformName()}',
style: const TextStyle(fontSize: 12, color: Colors.grey),
),
const SizedBox(height: 16),
const Text('Que souhaitez-vous faire ?'),
],
),
margin: const EdgeInsets.all(16),
behavior: SnackBarBehavior.floating,
),
actions: [
TextButton.icon(
onPressed: () => Navigator.of(context).pop('print'),
icon: const Icon(Icons.print),
label: const Text('Imprimer'),
),
TextButton.icon(
onPressed: () => Navigator.of(context).pop('save'),
icon: const Icon(Icons.save),
label: const Text('Sauvegarder PDF'),
),
TextButton(
onPressed: () => Navigator.of(context).pop('cancel'),
child: const Text('Annuler'),
),
],
);
},
);
if (action == null || action == 'cancel') return;
HapticFeedback.lightImpact();
bool success = false;
if (action == 'print') {
success = await PlatformPrintService.printFacture(
commande: widget.commande,
paymentMethod: widget.paymentMethod,
);
} else if (action == 'save') {
success = await PlatformPrintService.saveFacturePdf(
commande: widget.commande,
paymentMethod: widget.paymentMethod,
);
}
Future.delayed(const Duration(seconds: 2), () {
if (mounted) {
Navigator.of(context).popUntil((route) => route.isFirst);
}
});
if (success) {
_showSuccessMessage(
action == 'print'
? 'Facture envoyée à l\'imprimante ${_getPlatformName()}'
: 'PDF sauvegardé et partagé',
);
} else {
_showErrorMessage(
'Erreur lors de ${action == 'print' ? 'l\'impression' : 'la sauvegarde'}',
);
}
} catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Erreur impression: $e'),
backgroundColor: Colors.red,
),
);
_showErrorMessage('Erreur: $e');
} finally {
if (mounted) {
Navigator.of(context).pop();
setState(() => isPrinting = false);
}
}
void _showSaveOnlyDialog() async {
final shouldSave = await showDialog<bool>(
context: context,
builder: (BuildContext context) {
return AlertDialog(
title: const Text('Aucune imprimante'),
content: const Text(
'Aucune imprimante détectée. Voulez-vous sauvegarder le PDF ?',
),
actions: [
TextButton.icon(
onPressed: () => Navigator.of(context).pop(true),
icon: const Icon(Icons.save),
label: const Text('Sauvegarder'),
),
TextButton(
onPressed: () => Navigator.of(context).pop(false),
child: const Text('Annuler'),
),
],
);
},
);
if (shouldSave == true) {
final success = await PlatformPrintService.saveFacturePdf(
commande: widget.commande,
paymentMethod: widget.paymentMethod,
);
if (success) {
_showSuccessMessage('PDF sauvegardé avec succès');
} else {
_showErrorMessage('Erreur lors de la sauvegarde');
}
}
}
void _showSuccessMessage(String message) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Row(
children: [
const Icon(Icons.check_circle, color: Colors.white),
const SizedBox(width: 8),
Expanded(child: Text(message)),
],
),
backgroundColor: const Color(0xFF28A745),
duration: const Duration(seconds: 3),
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(6)),
margin: const EdgeInsets.all(16),
behavior: SnackBarBehavior.floating,
),
);
Future.delayed(const Duration(seconds: 3), () {
if (mounted) {
Navigator.of(context).popUntil((route) => route.isFirst);
}
});
}
void _showErrorMessage(String message) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Row(
children: [
const Icon(Icons.error, color: Colors.white),
const SizedBox(width: 8),
Expanded(child: Text(message)),
],
),
backgroundColor: Colors.red,
duration: const Duration(seconds: 3),
margin: const EdgeInsets.all(16),
behavior: SnackBarBehavior.floating,
),
);
}
String _getPlatformName() {
if (Platform.isAndroid) return 'Android';
if (Platform.isMacOS) return 'macOS';
if (Platform.isWindows) return 'Windows';
return 'cette plateforme';
}
}

475
lib/services/pdf_service.dart
View File

@ -1,188 +1,290 @@
// services/pdf_service.dart
// services/platform_print_service.dart
import 'dart:io';
import 'dart:typed_data';
import 'package:flutter/foundation.dart';
import 'package:flutter/services.dart';
import 'package:itrimobe/models/command_detail.dart';
import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart' as pw;
import 'package:printing/printing.dart';
import 'package:path_provider/path_provider.dart';
import 'package:share_plus/share_plus.dart';
import 'package:permission_handler/permission_handler.dart';
import '../models/command_detail.dart';
class PdfService {
static Future<Uint8List> generateFacturePdf({
class PlatformPrintService {
// Format spécifique 58mm pour petites imprimantes
static const PdfPageFormat ticket58mmFormat = PdfPageFormat(
58 * PdfPageFormat.mm, // Largeur exacte 58mm
double.infinity, // Hauteur automatique
marginLeft: 1 * PdfPageFormat.mm,
marginRight: 1 * PdfPageFormat.mm,
marginTop: 2 * PdfPageFormat.mm,
marginBottom: 2 * PdfPageFormat.mm,
);
// Vérifier les permissions
static Future<bool> _checkPermissions() async {
if (!Platform.isAndroid) return true;
final storagePermission = await Permission.storage.request();
return storagePermission == PermissionStatus.granted;
}
// Vérifier si l'impression est possible
static Future<bool> canPrint() async {
try {
return await Printing.info().then((info) => info.canPrint);
} catch (e) {
return false;
}
}
// Générer PDF optimisé pour 58mm
static Future<Uint8List> _generate58mmTicketPdf({
required CommandeDetail commande,
required String paymentMethod,
}) async {
final pdf = pw.Document();
// Informations du restaurant
// Configuration pour 58mm (très petit)
const double titleSize = 9;
const double headerSize = 8;
const double bodySize = 7;
const double smallSize = 6;
const double lineHeight = 1.2;
final restaurantInfo = {
'nom': 'RESTAURANT',
'adresse': 'Moramanga, Antananarivo',
'contact': '+261 34 12 34 56',
'adresse': '123 Rue de la Paix',
'ville': '75000 PARIS',
'contact': '01.23.45.67.89',
'email': 'contact@restaurant.fr',
};
// Générer numéro de facture
final factureNumber =
'F${DateTime.now().millisecondsSinceEpoch.toString().substring(7)}';
'T${DateTime.now().millisecondsSinceEpoch.toString().substring(8)}';
final dateTime = DateTime.now();
pdf.addPage(
pw.Page(
pageFormat: PdfPageFormat.a4,
margin: const pw.EdgeInsets.all(32),
pageFormat: ticket58mmFormat,
build: (pw.Context context) {
return pw.Column(
crossAxisAlignment: pw.CrossAxisAlignment.start,
crossAxisAlignment: pw.CrossAxisAlignment.center,
children: [
// En-tête Restaurant
pw.Center(
child: pw.Column(
children: [
pw.Text(
restaurantInfo['nom']!,
style: pw.TextStyle(
fontSize: 24,
fontWeight: pw.FontWeight.bold,
),
),
pw.SizedBox(height: 8),
pw.Text(
'Adresse: ${restaurantInfo['adresse']}',
style: const pw.TextStyle(fontSize: 12),
),
pw.Text(
'Contact: ${restaurantInfo['contact']}',
style: const pw.TextStyle(fontSize: 12),
),
],
// En-tête Restaurant (centré et compact)
pw.Text(
restaurantInfo['nom']!,
style: pw.TextStyle(
fontSize: titleSize,
fontWeight: pw.FontWeight.bold,
),
textAlign: pw.TextAlign.center,
),
pw.SizedBox(height: 30),
// Informations facture
pw.Center(
child: pw.Column(
children: [
pw.Text(
'Facture n° $factureNumber',
style: pw.TextStyle(
fontSize: 14,
fontWeight: pw.FontWeight.bold,
),
),
pw.SizedBox(height: 4),
pw.Text(
'Date: ${_formatDateTime(dateTime)}',
style: const pw.TextStyle(fontSize: 12),
),
pw.SizedBox(height: 4),
pw.Text(
'Table: ${commande.numeroCommande}',
style: const pw.TextStyle(fontSize: 12),
),
pw.SizedBox(height: 4),
pw.Text(
'Paiement: ${_getPaymentMethodText(paymentMethod)}',
style: const pw.TextStyle(fontSize: 12),
),
],
),
pw.SizedBox(height: 1),
pw.Text(
restaurantInfo['adresse']!,
style: pw.TextStyle(fontSize: smallSize),
textAlign: pw.TextAlign.center,
),
pw.Text(
restaurantInfo['ville']!,
style: pw.TextStyle(fontSize: smallSize),
textAlign: pw.TextAlign.center,
),
pw.Text(
'Tel: ${restaurantInfo['contact']!}',
style: pw.TextStyle(fontSize: smallSize),
textAlign: pw.TextAlign.center,
),
pw.SizedBox(height: 3),
// Ligne de séparation
pw.Container(
width: double.infinity,
height: 0.5,
color: PdfColors.black,
),
pw.SizedBox(height: 30),
pw.SizedBox(height: 2),
// Tableau des articles
pw.Table(
border: pw.TableBorder.all(color: PdfColors.grey300),
columnWidths: {
0: const pw.FlexColumnWidth(3),
1: const pw.FlexColumnWidth(1),
2: const pw.FlexColumnWidth(1),
},
// Informations ticket
pw.Row(
mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
children: [
// En-tête du tableau
pw.TableRow(
decoration: const pw.BoxDecoration(
color: PdfColors.grey100,
pw.Text(
'Ticket: $factureNumber',
style: pw.TextStyle(
fontSize: bodySize,
fontWeight: pw.FontWeight.bold,
),
children: [
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: pw.Text(
'Qté Désignation',
style: pw.TextStyle(fontWeight: pw.FontWeight.bold),
),
),
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: pw.Text(
'Prix',
style: pw.TextStyle(fontWeight: pw.FontWeight.bold),
textAlign: pw.TextAlign.right,
),
),
],
),
// Lignes des articles
...commande.items
.map(
(item) => pw.TableRow(
children: [
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: pw.Text(
'${item.quantite} TESTNOMCOMMANDE',
// pw.Text(
// 'Table: ${commande.tableName}',
// style: pw.TextStyle(fontSize: bodySize),
// ),
],
),
pw.SizedBox(height: 1),
pw.Row(
mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
children: [
pw.Text(
_formatDate(dateTime),
style: pw.TextStyle(fontSize: smallSize),
),
pw.Text(
_formatTime(dateTime),
style: pw.TextStyle(fontSize: smallSize),
),
],
),
pw.SizedBox(height: 2),
// Ligne de séparation
pw.Container(
width: double.infinity,
height: 0.5,
color: PdfColors.black,
),
pw.SizedBox(height: 2),
// Articles (format très compact)
...commande.items
.map(
(item) => pw.Container(
margin: const pw.EdgeInsets.only(bottom: 1),
child: pw.Column(
crossAxisAlignment: pw.CrossAxisAlignment.start,
children: [
// Nom du plat
pw.Text(
"NOMPLAT",
style: pw.TextStyle(fontSize: bodySize),
maxLines: 2,
),
// Quantité, prix unitaire et total sur une ligne
pw.Row(
mainAxisAlignment:
pw.MainAxisAlignment.spaceBetween,
children: [
pw.Text(
'${item.quantite}x ${item.prixUnitaire.toStringAsFixed(2)}€',
style: pw.TextStyle(fontSize: smallSize),
),
),
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: pw.Text(
'${item.prixUnitaire.toStringAsFixed(2)} €',
textAlign: pw.TextAlign.right,
pw.Text(
'${(item.prixUnitaire * item.quantite).toStringAsFixed(2)}€',
style: pw.TextStyle(
fontSize: bodySize,
fontWeight: pw.FontWeight.bold,
),
),
),
],
),
)
.toList(),
],
],
),
],
),
),
)
.toList(),
pw.SizedBox(height: 2),
// Ligne de séparation
pw.Container(
width: double.infinity,
height: 0.5,
color: PdfColors.black,
),
pw.SizedBox(height: 20),
pw.SizedBox(height: 2),
// Total
pw.Container(
alignment: pw.Alignment.centerRight,
child: pw.Container(
padding: const pw.EdgeInsets.all(12),
decoration: pw.BoxDecoration(
border: pw.Border.all(color: PdfColors.grey400),
color: PdfColors.grey50,
pw.Row(
mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
children: [
pw.Text(
'TOTAL',
style: pw.TextStyle(
fontSize: titleSize,
fontWeight: pw.FontWeight.bold,
),
),
child: pw.Text(
'Total: ${commande.totalTtc.toStringAsFixed(2)} €',
pw.Text(
'${commande.totalTtc.toStringAsFixed(2)}€',
style: pw.TextStyle(
fontSize: 16,
fontSize: titleSize,
fontWeight: pw.FontWeight.bold,
),
),
),
],
),
pw.Spacer(),
pw.SizedBox(height: 3),
// Mode de paiement
pw.Text(
'Paiement: ${_getPaymentMethodText(paymentMethod)}',
style: pw.TextStyle(fontSize: bodySize),
textAlign: pw.TextAlign.center,
),
pw.SizedBox(height: 3),
// Ligne de séparation
pw.Container(
width: double.infinity,
height: 0.5,
color: PdfColors.black,
),
pw.SizedBox(height: 2),
// Message de remerciement
pw.Center(
child: pw.Text(
'Merci et à bientôt !',
style: pw.TextStyle(
fontSize: 12,
fontStyle: pw.FontStyle.italic,
),
pw.Text(
'Merci de votre visite !',
style: pw.TextStyle(
fontSize: bodySize,
fontStyle: pw.FontStyle.italic,
),
textAlign: pw.TextAlign.center,
),
pw.Text(
'A bientôt !',
style: pw.TextStyle(fontSize: smallSize),
textAlign: pw.TextAlign.center,
),
pw.SizedBox(height: 3),
// Code de suivi (optionnel)
pw.Text(
'Code: ${factureNumber}',
style: pw.TextStyle(fontSize: smallSize),
textAlign: pw.TextAlign.center,
),
pw.SizedBox(height: 4),
// Ligne de découpe
pw.Text(
'- - - - - - - - - - - - - - - -',
style: pw.TextStyle(fontSize: smallSize),
textAlign: pw.TextAlign.center,
),
pw.SizedBox(height: 2),
],
);
},
@ -192,75 +294,120 @@ class PdfService {
return pdf.save();
}
static String _formatDateTime(DateTime dateTime) {
return '${dateTime.day.toString().padLeft(2, '0')}/${dateTime.month.toString().padLeft(2, '0')}/${dateTime.year} ${dateTime.hour.toString().padLeft(2, '0')}:${dateTime.minute.toString().padLeft(2, '0')}';
}
static String _getPaymentMethodText(String method) {
switch (method) {
case 'mvola':
return 'MVola';
case 'carte':
return 'CB';
case 'especes':
return 'Espèces';
default:
return 'CB';
}
}
// Imprimer directement
static Future<bool> printFacture({
// Imprimer ticket 58mm
static Future<bool> printTicket({
required CommandeDetail commande,
required String paymentMethod,
}) async {
try {
final pdfData = await generateFacturePdf(
final hasPermission = await _checkPermissions();
if (!hasPermission) {
throw Exception('Permissions requises pour l\'impression');
}
final pdfData = await _generate58mmTicketPdf(
commande: commande,
paymentMethod: paymentMethod,
);
final fileName =
'Ticket_${commande.numeroCommande}_${DateTime.now().millisecondsSinceEpoch}';
await Printing.layoutPdf(
onLayout: (PdfPageFormat format) async => pdfData,
name:
'Facture_${commande.numeroCommande}_${DateTime.now().millisecondsSinceEpoch}',
name: fileName,
format: ticket58mmFormat,
);
return true;
} catch (e) {
print('Erreur impression: $e');
print('Erreur impression 58mm: $e');
return false;
}
}
// Sauvegarder et partager le PDF
static Future<bool> saveAndShareFacture({
// Sauvegarder ticket 58mm
static Future<bool> saveTicketPdf({
required CommandeDetail commande,
required String paymentMethod,
}) async {
try {
final pdfData = await generateFacturePdf(
final hasPermission = await _checkPermissions();
if (!hasPermission) return false;
final pdfData = await _generate58mmTicketPdf(
commande: commande,
paymentMethod: paymentMethod,
);
final directory = await getApplicationDocumentsDirectory();
Directory directory;
if (Platform.isAndroid) {
directory = Directory('/storage/emulated/0/Download');
if (!directory.existsSync()) {
directory =
await getExternalStorageDirectory() ??
await getApplicationDocumentsDirectory();
}
} else {
directory = await getApplicationDocumentsDirectory();
}
final fileName =
'Facture_${commande.numeroCommande}_${DateTime.now().millisecondsSinceEpoch}.pdf';
'Ticket_58mm_${commande.numeroCommande}_${DateTime.now().millisecondsSinceEpoch}.pdf';
final file = File('${directory.path}/$fileName');
await file.writeAsBytes(pdfData);
await Share.shareXFiles(
[XFile(file.path)],
subject: 'Facture ${commande.numeroCommande}',
text: 'Facture de votre commande au restaurant',
subject: 'Ticket ${commande.numeroCommande}',
text: 'Ticket de caisse 58mm',
);
return true;
} catch (e) {
print('Erreur sauvegarde/partage: $e');
print('Erreur sauvegarde 58mm: $e');
return false;
}
}
// Méthodes pour compatibilité
static Future<bool> saveFacturePdf({
required CommandeDetail commande,
required String paymentMethod,
}) async {
return await saveTicketPdf(
commande: commande,
paymentMethod: paymentMethod,
);
}
static Future<bool> printFacture({
required CommandeDetail commande,
required String paymentMethod,
}) async {
return await printTicket(commande: commande, paymentMethod: paymentMethod);
}
// Utilitaires de formatage
static String _formatDate(DateTime dateTime) {
return '${dateTime.day.toString().padLeft(2, '0')}/${dateTime.month.toString().padLeft(2, '0')}/${dateTime.year}';
}
static String _formatTime(DateTime dateTime) {
return '${dateTime.hour.toString().padLeft(2, '0')}:${dateTime.minute.toString().padLeft(2, '0')}';
}
static String _getPaymentMethodText(String method) {
switch (method) {
case 'cash':
return 'Espèces';
case 'card':
return 'Carte bancaire';
case 'mobile':
return 'Paiement mobile';
default:
return 'Non spécifié';
}
}
}

1
pubspec.yaml
View File

@ -25,6 +25,7 @@ dependencies:
printing: ^5.11.1
path_provider: ^2.1.1
share_plus: ^7.2.1
permission_handler: ^11.1.0
# Dépendances de développement/test
dev_dependencies:

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