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eko54r
2026-02-07 15:57:09 +07:00
commit 157096f164
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import 'dart:async';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:http/http.dart' as http;
import 'package:mobile_pos/constant.dart';
import 'package:mobile_pos/model/sale_transaction_model.dart';
import 'package:path_provider/path_provider.dart';
import 'package:pdf/widgets.dart' as pw;
import 'package:permission_handler/permission_handler.dart';
import 'package:share_plus/share_plus.dart';
import '../Screens/PDF/pdf.dart';
import '../http_client/customer_http_client_get.dart';
class PDFCommonFunctions {
//-------------------image
Future<dynamic> getNetworkImage(String imageURL) async {
if (imageURL.isEmpty) return null;
try {
final Uri uri = Uri.parse(imageURL);
final String fileExtension = uri.path.split('.').last.toLowerCase();
if (fileExtension == 'png' || fileExtension == 'jpg' || fileExtension == 'jpeg') {
final List<int> responseBytes = await http.readBytes(uri);
return Uint8List.fromList(responseBytes);
} else if (fileExtension == 'svg') {
CustomHttpClientGet clientGet = CustomHttpClientGet(client: http.Client());
final response = await clientGet.get(url: uri);
return response.body;
} else {
print('Unsupported image type: $fileExtension');
return null;
}
} catch (e) {
print('Error loading image: $e');
return null;
}
}
Future<Uint8List?> loadAssetImage(String path) async {
try {
final ByteData data = await rootBundle.load(path);
return data.buffer.asUint8List();
} catch (e) {
print('Error loading local image: $e');
return null;
}
}
int serialNumber = 1; // Initialize serial number
num getProductQuantity({required num detailsId, required SalesTransactionModel transactions}) {
num totalQuantity = transactions.salesDetails?.where((element) => element.id == detailsId).first.quantities ?? 0;
if (transactions.salesReturns?.isNotEmpty ?? false) {
for (var returns in transactions.salesReturns!) {
if (returns.salesReturnDetails?.isNotEmpty ?? false) {
for (var details in returns.salesReturnDetails!) {
if (details.saleDetailId == detailsId) {
totalQuantity += details.returnQty ?? 0;
}
}
}
}
}
return totalQuantity;
}
static Future<void> savePdfAndShowPdf(
{required BuildContext context, required String shopName, required String invoice, required pw.Document doc, bool? isShare, bool? download}) async {
if (Platform.isIOS) {
// EasyLoading.show(status: 'Generating PDF');
if (download ?? false) {
EasyLoading.show(status: 'Downloading...');
} else {
EasyLoading.show(status: 'Generating PDF');
}
final dir = await getApplicationDocumentsDirectory();
final file = File('${dir.path}/${'$appsName-$shopName-$invoice'}.pdf');
final byteData = await doc.save();
try {
await file.writeAsBytes(byteData.buffer.asUint8List(byteData.offsetInBytes, byteData.lengthInBytes));
EasyLoading.showSuccess('Done');
if (isShare ?? false) {
await SharePlus.instance.share(ShareParams(
files: [XFile(file.path)],
text: 'Here is your invoice PDF: ',
));
} else if (download ?? false) {
EasyLoading.showSuccess('Download successful! Check your Downloads folder');
} else {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => PDFViewerPage(path: file.path),
),
);
}
} on FileSystemException catch (err) {
EasyLoading.showError(err.message);
// handle error
}
}
if (Platform.isAndroid) {
var status = await Permission.storage.status;
if (status != PermissionStatus.granted) {
status = await Permission.storage.request();
}
if (true) {
if (download ?? false) {
EasyLoading.show(status: 'Downloading...');
} else {
EasyLoading.show(status: 'Generating PDF');
}
const downloadsFolderPath = '/storage/emulated/0/Download/';
Directory dir = Directory(downloadsFolderPath);
var file = File('${dir.path}/${'$appsName-$shopName-$invoice'}.pdf');
for (var i = 1; i < 20; i++) {
if (await file.exists()) {
try {
await file.delete();
break;
} catch (e) {
if (e.toString().contains('Cannot delete file')) {
file = File('${file.path.replaceAll(RegExp(r'\(\d+\)?'), '').replaceAll('.pdf', '')}($i).pdf');
}
}
} else {
break;
}
}
try {
final byteData = await doc.save();
await file.writeAsBytes(byteData.buffer.asUint8List(byteData.offsetInBytes, byteData.lengthInBytes));
EasyLoading.dismiss();
if (isShare ?? false) {
await SharePlus.instance.share(ShareParams(files: [XFile(file.path)], text: 'Here is your invoice PDF: '));
} else if (download ?? false) {
EasyLoading.showSuccess('Download successful! Check your Downloads folder');
} else {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => PDFViewerPage(path: file.path),
),
);
}
} on FileSystemException catch (err) {
EasyLoading.showError(err.message);
}
}
}
}
String numberToWords(num amount) {
int taka = amount.floor();
int paisa = ((amount - taka) * 100).round();
String takaWords = _convertNumberToWords(taka);
String paisaWords = paisa > 0 ? ' and ${_convertNumberToWords(paisa)} Cents' : '';
return '$takaWords $paisaWords Only';
}
String _convertNumberToWords(int number) {
if (number == 0) return 'Zero';
final units = [
'',
'One',
'Two',
'Three',
'Four',
'Five',
'Six',
'Seven',
'Eight',
'Nine',
'Ten',
'Eleven',
'Twelve',
'Thirteen',
'Fourteen',
'Fifteen',
'Sixteen',
'Seventeen',
'Eighteen',
'Nineteen'
];
final tens = ['', '', 'Twenty', 'Thirty', 'Forty', 'Fifty', 'Sixty', 'Seventy', 'Eighty', 'Ninety'];
String convert(int n) {
if (n < 20) return units[n];
if (n < 100) {
return tens[n ~/ 10] + (n % 10 != 0 ? ' ' + units[n % 10] : '');
}
if (n < 1000) {
return units[n ~/ 100] + ' Hundred' + (n % 100 != 0 ? ' ' + convert(n % 100) : '');
}
if (n < 100000) {
return convert(n ~/ 1000) + ' Thousand' + (n % 1000 != 0 ? ' ' + convert(n % 1000) : '');
}
if (n < 10000000) {
return convert(n ~/ 100000) + ' Lakh' + (n % 100000 != 0 ? ' ' + convert(n % 100000) : '');
}
return convert(n ~/ 10000000) + ' Crore' + (n % 10000000 != 0 ? ' ' + convert(n % 10000000) : '');
}
return convert(number);
}
}

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import 'dart:async';
import 'dart:io';
import 'package:excel/excel.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:intl/intl.dart';
import 'package:mobile_pos/Const/api_config.dart';
import 'package:mobile_pos/PDF%20Invoice/universal_image_widget.dart';
import 'package:mobile_pos/Screens/all_transaction/model/transaction_model.dart';
import 'package:mobile_pos/constant.dart';
import 'package:mobile_pos/generated/l10n.dart' as l;
import 'package:mobile_pos/model/sale_transaction_model.dart';
import 'package:nb_utils/nb_utils.dart';
import 'package:open_file/open_file.dart';
import 'package:path_provider/path_provider.dart';
import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart' as pw;
import 'package:printing/printing.dart';
import '../Screens/Products/add product/modle/create_product_model.dart';
import '../model/business_info_model.dart';
import '../model/subscription_report_model.dart';
import 'pdf_common_functions.dart';
class SubscriptionInvoicePdf {
static Future<void> generateSaleDocument(
List<SubscriptionReportModel> subscription, BusinessInformationModel personalInformation, BuildContext context,
{bool? share, bool? download, bool? showPreview}) async {
final pw.Document doc = pw.Document();
final _lang = l.S.of(context);
final String imageUrl =
'${APIConfig.domain}${(personalInformation.data?.showA4InvoiceLogo == 1) ? personalInformation.data?.a4InvoiceLogo : ''}';
dynamic imageData = await PDFCommonFunctions().getNetworkImage(imageUrl);
imageData ??= (personalInformation.data?.showA4InvoiceLogo == 1)
? await PDFCommonFunctions().loadAssetImage('images/logo.png')
: null;
final englishFont = pw.Font.ttf(await rootBundle.load('fonts/NotoSans/NotoSans-Regular.ttf'));
final englishBold = pw.Font.ttf(await rootBundle.load('fonts/NotoSans/NotoSans-Medium.ttf'));
final banglaFont = pw.Font.ttf(await rootBundle.load('assets/fonts/siyam_rupali_ansi.ttf'));
final arabicFont = pw.Font.ttf(await rootBundle.load('assets/fonts/Amiri-Regular.ttf'));
final hindiFont = pw.Font.ttf(await rootBundle.load('assets/fonts/Hind-Regular.ttf'));
final frenchFont = pw.Font.ttf(await rootBundle.load('assets/fonts/GFSDidot-Regular.ttf'));
// Helper function
pw.Font getFont({bool bold = false}) {
switch (selectedLanguage) {
case 'en':
return bold ? englishBold : englishFont;
case 'bn':
// Bold not available, fallback to regular
return banglaFont;
case 'ar':
return arabicFont;
case 'hi':
return hindiFont;
case 'fr':
return frenchFont;
default:
return bold ? englishBold : englishFont;
}
}
getFontWithLangMatching(String data) {
String detectedLanguage = detectLanguageEnhanced(data);
if (detectedLanguage == 'en') {
return englishFont;
} else if (detectedLanguage == 'bn') {
return banglaFont;
} else if (detectedLanguage == 'ar') {
return arabicFont;
} else if (detectedLanguage == 'hi') {
return hindiFont;
} else if (detectedLanguage == 'fr') {
return frenchFont;
} else {
return englishFont;
}
}
final showWarranty = personalInformation.data?.showWarranty == 1 &&
(personalInformation.data?.warrantyVoidLabel != null || personalInformation.data?.warrantyVoid != null);
doc.addPage(
pw.MultiPage(
pageFormat: PdfPageFormat.letter.copyWith(marginBottom: 1.5 * PdfPageFormat.cm),
margin: pw.EdgeInsets.zero,
crossAxisAlignment: pw.CrossAxisAlignment.start,
header: (pw.Context context) {
return pw.Padding(
padding: const pw.EdgeInsets.all(20.0),
child: pw.Column(
children: [
pw.Row(mainAxisAlignment: pw.MainAxisAlignment.spaceBetween, children: [
pw.Container(
height: 54.12,
width: 200,
child: universalImage(
imageData,
w: 200,
h: 54.12,
),
),
pw.Column(
crossAxisAlignment: pw.CrossAxisAlignment.end,
children: [
if (personalInformation.data?.meta?.showAddress == 1)
pw.SizedBox(
width: 200,
child: getLocalizedPdfText(
'${_lang.address}: ${personalInformation.data?.address ?? ''}',
pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
),
),
),
if (personalInformation.data?.meta?.showPhoneNumber == 1)
pw.SizedBox(
width: 200,
child: getLocalizedPdfText(
'${_lang.mobile}: ${personalInformation.data?.phoneNumber ?? ''}',
pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
),
),
),
if (personalInformation.data?.meta?.showEmail == 1)
pw.SizedBox(
width: 200,
child: getLocalizedPdfText(
'${_lang.emailText}: ${personalInformation.data?.invoiceEmail ?? ''}',
pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
)),
),
//vat Name
if (personalInformation.data?.meta?.showVat == 1)
if (personalInformation.data?.vatNo != null && personalInformation.data?.meta?.showVat == 1)
pw.SizedBox(
width: 200,
child: getLocalizedPdfText(
'${personalInformation.data?.vatName ?? _lang.vatNumber}: ${personalInformation.data?.vatNo ?? ''}',
pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
)),
),
],
),
]),
pw.SizedBox(height: 16.0),
pw.Center(
child: pw.Container(
padding: pw.EdgeInsets.symmetric(horizontal: 19, vertical: 10),
decoration: pw.BoxDecoration(
borderRadius: pw.BorderRadius.circular(20),
border: pw.Border.all(color: PdfColors.black),
),
child: getLocalizedPdfText(
_lang.INVOICE,
pw.TextStyle(
fontWeight: pw.FontWeight.bold,
fontSize: 18,
color: PdfColors.black,
font: getFont(bold: true),
),
),
),
),
pw.SizedBox(height: 20),
pw.Row(mainAxisAlignment: pw.MainAxisAlignment.spaceBetween, children: [
pw.Column(crossAxisAlignment: pw.CrossAxisAlignment.start, children: [
//customer name
pw.Row(children: [
pw.SizedBox(
width: 60.0,
child: getLocalizedPdfText(
_lang.billTO,
pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
)),
),
pw.SizedBox(
width: 10.0,
child: pw.Text(
':',
style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
),
),
pw.SizedBox(
width: 100.0,
child: getLocalizedPdfTextWithLanguage(
personalInformation.data?.user?.name ?? '',
pw.TextStyle(
color: PdfColors.black,
font: getFontWithLangMatching(personalInformation.data?.user?.name ?? ''),
fontFallback: [englishFont],
)),
),
]),
//mobile
pw.Row(children: [
pw.SizedBox(
width: 60.0,
child: getLocalizedPdfText(
_lang.mobile,
pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
)),
),
pw.SizedBox(
width: 10.0,
child: pw.Text(
':',
style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
),
),
pw.SizedBox(
width: 100.0,
child: getLocalizedPdfText(personalInformation.data?.phoneNumber ?? 'n/a',
pw.TextStyle(font: getFont(), fontFallback: [englishFont])),
),
]),
//Address
pw.Row(children: [
pw.SizedBox(
width: 60.0,
child: getLocalizedPdfText(
_lang.address,
pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
)),
),
pw.SizedBox(
width: 10.0,
child: pw.Text(
':',
style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
),
),
pw.SizedBox(
width: 150.0,
child: getLocalizedPdfTextWithLanguage(
personalInformation.data?.address ?? '',
pw.TextStyle(
color: PdfColors.black,
font: getFontWithLangMatching(personalInformation.data?.address ?? ''),
fontFallback: [englishFont],
)),
),
]),
]),
]),
],
),
);
},
footer: (pw.Context context) {
return pw.Column(children: [
pw.Padding(
padding: const pw.EdgeInsets.all(10.0),
child: pw.Row(mainAxisAlignment: pw.MainAxisAlignment.spaceBetween, children: [
pw.Container(
alignment: pw.Alignment.centerRight,
margin: const pw.EdgeInsets.only(bottom: 3.0 * PdfPageFormat.mm),
padding: const pw.EdgeInsets.only(bottom: 3.0 * PdfPageFormat.mm),
child: pw.Column(children: [
pw.Container(
width: 120.0,
height: 2.0,
color: PdfColors.black,
),
pw.SizedBox(height: 4.0),
getLocalizedPdfText(
_lang.customerSignature,
pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
))
]),
),
pw.Container(
alignment: pw.Alignment.centerRight,
margin: const pw.EdgeInsets.only(bottom: 3.0 * PdfPageFormat.mm),
padding: const pw.EdgeInsets.only(bottom: 3.0 * PdfPageFormat.mm),
child: pw.Column(children: [
pw.Container(
width: 120.0,
height: 2.0,
color: PdfColors.black,
),
pw.SizedBox(height: 4.0),
getLocalizedPdfText(
_lang.authorizedSignature,
pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
))
]),
),
]),
),
if (showWarranty)
pw.Padding(
padding: pw.EdgeInsets.symmetric(horizontal: 10),
child: pw.Container(
width: double.infinity,
padding: const pw.EdgeInsets.all(4),
decoration: pw.BoxDecoration(
border: pw.Border.all(color: PdfColors.black),
),
child: pw.RichText(
text: pw.TextSpan(
children: [
if (personalInformation.data?.warrantyVoidLabel != null)
pw.TextSpan(
text: '${personalInformation.data!.warrantyVoidLabel!}- ',
style: pw.TextStyle(
color: PdfColors.black,
font: getFont(bold: true),
fontFallback: [englishFont],
),
),
if (personalInformation.data?.warrantyVoid != null)
pw.TextSpan(
text: personalInformation.data!.warrantyVoid!,
style: pw.TextStyle(
color: PdfColors.black,
font: getFont(),
fontFallback: [englishFont],
),
),
],
),
),
),
),
pw.SizedBox(height: 10),
pw.Padding(
padding: pw.EdgeInsets.symmetric(horizontal: 10),
child: pw.Center(
child: pw.Text(
'${personalInformation.data?.developByLevel ?? ''} ${personalInformation.data?.developBy ?? ''}',
style: pw.TextStyle(fontWeight: pw.FontWeight.bold),
),
),
),
]);
},
build: (pw.Context context) => <pw.Widget>[
pw.Padding(
padding: const pw.EdgeInsets.only(left: 20.0, right: 20.0, bottom: 20.0),
child: pw.Column(
crossAxisAlignment: pw.CrossAxisAlignment.start,
children: [
// Main products table
pw.Table(
border: pw.TableBorder(
horizontalInside: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
verticalInside: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
left: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
right: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
top: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
bottom: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
),
columnWidths: <int, pw.TableColumnWidth>{
0: const pw.FlexColumnWidth(1),
1: const pw.FlexColumnWidth(2),
2: const pw.FlexColumnWidth(3),
3: const pw.FlexColumnWidth(2),
4: const pw.FlexColumnWidth(2),
5: const pw.FlexColumnWidth(3),
},
children: [
// Table header
pw.TableRow(
children: [
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: getLocalizedPdfText(
_lang.sl,
pw.TextStyle(
font: getFont(bold: true),
fontFallback: [englishFont],
),
textAlignment: pw.TextAlign.center,
),
),
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: getLocalizedPdfText(
_lang.date,
pw.TextStyle(
font: getFont(bold: true),
fontFallback: [englishFont],
fontWeight: pw.FontWeight.bold,
),
textAlignment: pw.TextAlign.left,
),
),
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: getLocalizedPdfText(
_lang.packageName,
pw.TextStyle(
font: getFont(bold: true),
fontFallback: [englishFont],
fontWeight: pw.FontWeight.bold,
),
textAlignment: pw.TextAlign.center,
),
),
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: getLocalizedPdfText(
_lang.started,
pw.TextStyle(
font: getFont(bold: true),
fontFallback: [englishFont],
fontWeight: pw.FontWeight.bold,
),
textAlignment: pw.TextAlign.center,
),
),
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: getLocalizedPdfText(
_lang.end,
pw.TextStyle(
font: getFont(bold: true),
fontFallback: [englishFont],
fontWeight: pw.FontWeight.bold,
),
textAlignment: pw.TextAlign.center,
),
),
pw.Padding(
padding: const pw.EdgeInsets.all(8),
child: getLocalizedPdfText(
_lang.paymentMethod,
pw.TextStyle(
font: getFont(bold: true),
fontFallback: [englishFont],
fontWeight: pw.FontWeight.bold,
),
textAlignment: pw.TextAlign.center,
),
),
],
),
// Table rows for products
for (int i = 0; i < subscription.length; i++)
pw.TableRow(
children: [
pw.Padding(
padding: const pw.EdgeInsets.all(8.0),
child: pw.Text('${i + 1}', textAlign: pw.TextAlign.center),
),
pw.Padding(
padding: pw.EdgeInsets.all(8.0),
child: getLocalizedPdfTextWithLanguage(
textAlignment: pw.TextAlign.center,
subscription[i].startDate == null
? "N/A"
: DateFormat('dd MMM yyyy').format(subscription[i].startDate!),
pw.TextStyle(
font: getFont(),
fontFallback: [englishFont],
)),
),
pw.Padding(
padding: pw.EdgeInsets.all(8.0),
child: getLocalizedPdfTextWithLanguage(
textAlignment: pw.TextAlign.center,
subscription[i].name ?? 'n/a',
pw.TextStyle(
font: getFont(),
fontFallback: [englishFont],
)),
),
pw.Padding(
padding: pw.EdgeInsets.all(8.0),
child: getLocalizedPdfTextWithLanguage(
textAlignment: pw.TextAlign.center,
subscription[i].startDate == null
? "N/A"
: DateFormat('dd MMM yyyy').format(subscription[i].startDate!),
pw.TextStyle(
font: getFont(),
fontFallback: [englishFont],
)),
),
pw.Padding(
padding: pw.EdgeInsets.all(8.0),
child: getLocalizedPdfTextWithLanguage(
textAlignment: pw.TextAlign.center,
subscription[i].endDate == null
? "N/A"
: DateFormat('dd MMM yyyy').format(subscription[i].startDate!),
pw.TextStyle(
font: getFont(),
fontFallback: [englishFont],
)),
),
pw.SizedBox(height: 12),
pw.Padding(
padding: pw.EdgeInsets.all(8.0),
child: getLocalizedPdfTextWithLanguage(
textAlignment: pw.TextAlign.center,
subscription[i].paymentBy ?? 'n/a',
pw.TextStyle(
font: getFont(),
fontFallback: [englishFont],
)),
),
],
),
],
),
pw.SizedBox(height: 20.0),
if ((!personalInformation.data!.invoiceNote.isEmptyOrNull ||
!personalInformation.data!.invoiceNoteLevel.isEmptyOrNull) &&
personalInformation.data!.showNote == 1)
pw.RichText(
textAlign: pw.TextAlign.start,
text: pw.TextSpan(
text: '${personalInformation.data?.invoiceNoteLevel ?? ''}: ',
style: pw.TextStyle(
font: getFont(bold: true),
),
children: [
pw.TextSpan(
text: personalInformation.data?.invoiceNote ?? '',
style: pw.TextStyle(
font: getFont(bold: true),
))
])),
pw.SizedBox(height: 30),
if (personalInformation.data?.showGratitudeMsg == 1)
if (!personalInformation.data!.gratitudeMessage.isEmptyOrNull)
pw.Container(
width: double.infinity,
padding: const pw.EdgeInsets.only(bottom: 8.0),
child: pw.Center(
child: pw.Text(
personalInformation.data!.gratitudeMessage ?? '',
)),
),
pw.Padding(padding: const pw.EdgeInsets.all(10)),
],
),
),
],
),
);
if (showPreview == true) {
await Printing.layoutPdf(
name: personalInformation.data?.companyName ?? '',
usePrinterSettings: true,
dynamicLayout: true,
forceCustomPrintPaper: true,
onLayout: (PdfPageFormat format) async => doc.save());
} else {
await PDFCommonFunctions.savePdfAndShowPdf(
context: context,
shopName: personalInformation.data?.companyName ?? '',
invoice: '1',
doc: doc,
isShare: share,
download: download,
);
}
}
}

83
lib/PDF Invoice/universal_image_widget.dart Normal file
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import 'dart:convert';
import 'package:flutter/services.dart';
import 'package:mobile_pos/constant.dart';
import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart' as pw;
pw.Widget universalImage(dynamic data, {double? w, double? h}) {
try {
// Case 1: Uint8List → PNG/JPG
if (data is Uint8List) {
return pw.Image(
pw.MemoryImage(data),
width: w,
height: h,
fit: pw.BoxFit.cover,
);
}
// Case 2: SVG string
if (data is String && data.trim().startsWith("<svg")) {
return pw.SvgImage(
svg: data,
width: w,
height: h,
fit: pw.BoxFit.cover,
);
}
// Case 3: Base64 Image String (data:image/png;base64,...)
if (data is String && data.contains("base64")) {
try {
final base64Str = data.split(',').last;
final bytes = base64Decode(base64Str);
return pw.Image(
pw.MemoryImage(bytes),
width: w,
height: h,
fit: pw.BoxFit.cover,
);
} catch (e) {
// base64 decode failed
return pw.Container(width: w, height: h);
}
}
// Case 4: Unknown String → DO NOT convert to image
if (data is String) {
return pw.Container(
alignment: pw.Alignment.center,
width: w,
height: h,
padding: pw.EdgeInsets.all(8),
decoration: pw.BoxDecoration(
shape: pw.BoxShape.circle,
color: PdfColors.grey200,
),
child: pw.Text(
"No Image",
textAlign: pw.TextAlign.center,
),
);
}
// Unknown type
return pw.Container(width: w, height: h);
} catch (e) {
return pw.Container(
alignment: pw.Alignment.center,
width: w,
height: h,
padding: pw.EdgeInsets.all(8),
decoration: pw.BoxDecoration(
shape: pw.BoxShape.circle,
color: PdfColors.grey200,
),
child: pw.Text(
"Invalid Image",
textAlign: pw.TextAlign.center,
),
);
}
}