Yin and yang: Difference between revisions
→{{header|Dart}}: added Flutter
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Line 2,059:
=={{header|Dart}}==
===Text===
<syntaxhighlight lang="dart">
/* Imports and Exports */
Line 2,146 ⟶ 2,147:
###
</pre>
===Flutter===
[[File:YinYang-flutter.png]]<br>
[https://dartpad.dev/?id=c54bafac1d8f46c07db626dca64e13e4 Watch/play online DartPad]
<syntaxhighlight lang="dart">import 'dart:math';
import 'package:flutter/material.dart';
Path yinYang(double r, double x, double y, [double th = 1.0]) {
cR(double dY, double radius) => Rect.fromCircle(center: Offset(x, y + dY), radius: radius);
return Path()
..fillType = PathFillType.evenOdd
..addOval(cR(0, r + th))
..addOval(cR(r / 2, r / 6))
..addOval(cR(-r / 2, r / 6))
..addArc(cR(0, r), -pi / 2, -pi)
..addArc(cR(r / 2, r / 2), pi / 2, pi)
..addArc(cR(-r / 2, r / 2), pi / 2, -pi);
}
void main() => runApp(const MainApp());
class MainApp extends StatelessWidget {
const MainApp({super.key});
@override
Widget build(BuildContext context) => CustomPaint(painter: YinYangPainter());
}
class YinYangPainter extends CustomPainter {
@override
void paint(Canvas canvas, Size size) {
final fill = Paint()..style = PaintingStyle.fill;
canvas
..drawColor(Colors.white, BlendMode.src)
..drawPath(yinYang(50.0, 60, 60), fill)
..drawPath(yinYang(20.0, 140, 30), fill);
}
@override
bool shouldRepaint(CustomPainter oldDelegate) => true;
}
</syntaxhighlight>
=={{header|Delphi}}==
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