first commit

lib/PDF Invoice/universal_image_widget.dart

@@ -0,0 +1,83 @@
+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,
+      ),
+    );
+  }
+}