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- // Copyright (c) 2021 Razeware LLC
- //
- // Permission is hereby granted, free of charge, to any person obtaining a copy
- // of this software and associated documentation files (the "Software"), to deal
- // in the Software without restriction, including without limitation the rights
- // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- // copies of the Software, and to permit persons to whom the Software is
- // furnished to do so, subject to the following conditions:
- //
- // The above copyright notice and this permission notice shall be included in
- // all copies or substantial portions of the Software.
- //
- // Notwithstanding the foregoing, you may not use, copy, modify, merge, publish,
- // distribute, sublicense, create a derivative work, and/or sell copies of the
- // Software in any work that is designed, intended, or marketed for pedagogical
- // or instructional purposes related to programming, coding, application
- // development, or information technology. Permission for such use, copying,
- // modification, merger, publication, distribution, sublicensing, creation of
- // derivative works, or sale is expressly withheld.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- // THE SOFTWARE.
- import 'package:flutter/material.dart';
- class OvalPainter extends CustomPainter {
- @override
- void paint(Canvas canvas, Size size) {
- final paint = Paint()
- ..strokeWidth = 4
- ..color = Colors.blueAccent
- ..style = PaintingStyle.stroke;
-
- const circleRadius = 75.0;
- const circleCenter = Offset(200, 150);
- canvas.drawCircle(circleCenter, circleRadius, paint);
- const ovalCenter = Offset(200, 275);
- final oval = Rect.fromCenter(center: ovalCenter, width: 250, height: 100);
- canvas.drawOval(oval, paint);
- var concentricCircleRadius = 100.0;
- const center = Offset(200, 500);
- while (concentricCircleRadius > 0) {
- canvas.drawCircle(center, concentricCircleRadius, paint);
- concentricCircleRadius -= 10;
- }
- }
- @override
- bool shouldRepaint(covariant CustomPainter oldDelegate) => false;
- }
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