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