add pdf generator

2024-02-22 17:16:19 +06:30
parent c33d3dda8a
commit cd3a05e064
9 changed files with 139 additions and 27 deletions
--- a/lib/helpers/pdf.dart
+++ b/lib/helpers/pdf.dart
@@ -0,0 +1,69 @@
+import 'dart:io';
+import 'package:flutter/services.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 '../domain/entities/carton.dart';
+
+Future<void> generateCartonPdf(Carton carton) async {
+  var myTheme = pw.ThemeData.withFont(
+    base:
+        pw.Font.ttf(await rootBundle.load("assets/fonts/OpenSans-Regular.ttf")),
+    bold: pw.Font.ttf(await rootBundle.load("assets/fonts/OpenSans-Bold.ttf")),
+    italic:
+        pw.Font.ttf(await rootBundle.load("assets/fonts/OpenSans-Italic.ttf")),
+    boldItalic: pw.Font.ttf(
+        await rootBundle.load("assets/fonts/OpenSans-BoldItalic.ttf")),
+  );
+
+  final doc = pw.Document(
+    theme: myTheme,
+  );
+
+  PdfPageFormat format =
+      const PdfPageFormat(PdfPageFormat.inch * 3, PdfPageFormat.inch * 1);
+  doc.addPage(pw.Page(
+      pageFormat: format,
+      build: (pw.Context context) {
+        return pw.Padding(
+            padding: const pw.EdgeInsets.all(5),
+            child: pw.Row(
+                mainAxisAlignment: pw.MainAxisAlignment.start,
+                crossAxisAlignment: pw.CrossAxisAlignment.center,
+                children: <pw.Widget>[
+                  pw.BarcodeWidget(
+                      width: 50,
+                      height: 50,
+                      color: PdfColor.fromHex("#000000"),
+                      barcode: pw.Barcode.qrCode(),
+                      data: carton.cartonNumber!),
+                  pw.Padding(
+                    padding: const pw.EdgeInsets.all(5),
+                    child: pw.Column(
+                        crossAxisAlignment: pw.CrossAxisAlignment.start,
+                        children: [
+                          pw.Text(carton.cartonNumber!,
+                              style: pw.TextStyle(
+                                fontSize: 12,
+                              )),
+                          pw.Text(carton.userName!,
+                              style: pw.TextStyle(
+                                fontSize: 10,
+                              )),
+                          pw.Text("${carton.actualWeight} lb",
+                              style: pw.TextStyle(
+                                  fontSize: 10,
+                                  color: PdfColor.fromInt(0xFF757575)))
+                        ]),
+                  ),
+                ]));
+      }));
+
+  List<int> d = await doc.save();
+  final path = (await getExternalStorageDirectory())?.path ?? "";
+  final file = File("$path/${carton.cartonNumber}.pdf");
+  await file.writeAsBytes(d, flush: true);
+  OpenFile.open(file.path);
+}