ANTIPALSU Label template editor using flutter

ovals_painter.dart 2.4KB

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  1. // Copyright (c) 2021 Razeware LLC
  2. //
  3. // Permission is hereby granted, free of charge, to any person obtaining a copy
  4. // of this software and associated documentation files (the "Software"), to deal
  5. // in the Software without restriction, including without limitation the rights
  6. // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  7. // copies of the Software, and to permit persons to whom the Software is
  8. // furnished to do so, subject to the following conditions:
  9. //
  10. // The above copyright notice and this permission notice shall be included in
  11. // all copies or substantial portions of the Software.
  12. //
  13. // Notwithstanding the foregoing, you may not use, copy, modify, merge, publish,
  14. // distribute, sublicense, create a derivative work, and/or sell copies of the
  15. // Software in any work that is designed, intended, or marketed for pedagogical
  16. // or instructional purposes related to programming, coding, application
  17. // development, or information technology. Permission for such use, copying,
  18. // modification, merger, publication, distribution, sublicensing, creation of
  19. // derivative works, or sale is expressly withheld.
  20. //
  21. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  22. // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  24. // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  25. // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  26. // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  27. // THE SOFTWARE.
  28. import 'package:flutter/material.dart';
  29. class OvalPainter extends CustomPainter {
  30. @override
  31. void paint(Canvas canvas, Size size) {
  32. final paint = Paint()
  33. ..strokeWidth = 4
  34. ..color = Colors.blueAccent
  35. ..style = PaintingStyle.stroke;
  36. const circleRadius = 75.0;
  37. const circleCenter = Offset(200, 150);
  38. canvas.drawCircle(circleCenter, circleRadius, paint);
  39. const ovalCenter = Offset(200, 275);
  40. final oval = Rect.fromCenter(center: ovalCenter, width: 250, height: 100);
  41. canvas.drawOval(oval, paint);
  42. var concentricCircleRadius = 100.0;
  43. const center = Offset(200, 500);
  44. while (concentricCircleRadius > 0) {
  45. canvas.drawCircle(center, concentricCircleRadius, paint);
  46. concentricCircleRadius -= 10;
  47. }
  48. }
  49. @override
  50. bool shouldRepaint(covariant CustomPainter oldDelegate) => false;
  51. }