Custom Shapes in flutter with enhanced enums

readme.md

Created with <3 with dartpad.dev.

main.dart

import 'package:flutter/material.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark().copyWith(
        scaffoldBackgroundColor: darkBlue,
      ),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: CustomShape(
            shapeType: ShapeType.circle,
            child: Container(),
          ),
        ),
      ),
    );
  }
}

enum ShapeType {
  circle('circle', Size(12, 12)),
  square('square', Size(100, 100)),
  star('star', Size(50, 15)),
  ;

  const ShapeType(this.shape, this.size);

  final String shape;
  final Size size;
}

class CustomShape extends StatelessWidget {
  const CustomShape({
    Key? key,
    required this.shapeType,
    required this.child,
  }) : super(key: key);

  final ShapeType shapeType;
  final Widget child;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      body: Center(
        child: Semantics(
          label: shapeType.shape,
          child: SizedBox(
            width: shapeType.size.width,
            height: shapeType.size.height,
            child: CustomPaint(
              painter: _ShapePainter(shapeType),
              size: shapeType.size,
              child: child,
            ),
          ),
        ),
      ),
    );
  }
}

class _ShapePainter extends CustomPainter {
  _ShapePainter(this.shapeType);

  final ShapeType shapeType;

  @override
  void paint(Canvas canvas, Size size) {
    final paint = Paint()
      ..color = Colors.black
      ..style = PaintingStyle.stroke
      ..strokeWidth = 2
      ..strokeJoin = StrokeJoin.round; // Round the corners

    switch (shapeType) {
      case ShapeType.circle:
        canvas.drawCircle(size.center(Offset.zero), size.width / 2, paint);
        break;
      case ShapeType.square:
        canvas.drawRect(Offset.zero & size, paint);
        break;
      case ShapeType.star:
        final path = Path()
          ..moveTo(size.width / 2, 0)
          ..lineTo(size.width * 0.75, size.height * 0.5)
          ..lineTo(size.width, size.height * 0.5)
          ..lineTo(size.width * 0.8, size.height * 0.75)
          ..lineTo(size.width * 0.9, size.height)
          ..lineTo(size.width / 2, size.height * 0.85)
          ..lineTo(size.width * 0.1, size.height)
          ..lineTo(size.width * 0.2, size.height * 0.75)
          ..lineTo(0, size.height * 0.5)
          ..lineTo(size.width * 0.25, size.height * 0.5)
          ..close();

        canvas.drawPath(path, paint);
        break;
    }
  }

  @override
  bool shouldRepaint(CustomPainter oldDelegate) => false;
}