Yin and yang: Difference between revisions

Line 2,191:

<syntaxhighlight lang="dart">import 'package:flutter/material.dart';

const ~~colors~~ = [Colors.black, Colors.white];

const color = [Colors.black, Colors.white];

Container cR(int ~~iClr~~, double r, {Widget? child, ~~Clip~~ ~~clip~~ = ~~Clip.none~~}) => Container(

Container cR(int iColor, double r, {Widget? child, bool main = false}) => Container(

decoration: ShapeDecoration(color: color[iColor], shape: const CircleBorder()),

width: r * 2,

constraints: BoxConstraints.tight(Size.fromRadius(r)),

height: r * 2,

clipBehavior: main ? Clip.hardEdge : Clip.none,

decoration: ShapeDecoration(color: ~~colors~~[~~iClr~~], shape: const CircleBorder()),

margin: main ? const EdgeInsets.all(5) : null,

clipBehavior: clip,

child: Center(child: child));

Container yinYang(double r, [double th = 1.0]) => cR(0, r + th,

~~clip~~: ~~Clip.hardEdge~~,

main: true,

child: cR(1, r,

child: Stack(alignment: Alignment.center, children: [

Container(color: ~~colors~~[0], margin: EdgeInsets.only(left: r)),

Container(color: color[0], margin: EdgeInsets.only(left: r)),

Column(children: List.generate(2, (i) => cR(1 - i, r / 2, child: cR(i, r / 6))))

])));

void main() => runApp(~~const MainApp~~(~~));~~

void main() => runApp(MaterialApp(

home: ColoredBox(color: color[1], child: Wrap(children: [yinYang(50), yinYang(20)]))));

class MainApp extends StatelessWidget {

const MainApp({super.key});

@override

Widget build(BuildContext context) => MaterialApp(

home: Container(

color: colors[1],

~~padding:~~ const EdgeInsets.all(10),

child: Wrap(children: [yinYang(50), yinYang(20)])));

}

</syntaxhighlight>