38 lines
1.4 KiB
Dart
38 lines
1.4 KiB
Dart
import 'package:flutter/rendering.dart';
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class ArrowClipper extends CustomClipper<Path> {
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@override
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Path getClip(Size size) {
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final path = Path();
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path.lineTo(0.0, size.height);
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path.lineTo(size.width, size.height);
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path.lineTo(size.width, 0.0);
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path.lineTo(0.0, 0.0);
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path.close();
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const arrowWidth = 8.0;
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final startPointX = (size.width - arrowWidth) / 2;
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var startPointY = size.height / 2 - arrowWidth / 2;
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path.moveTo(startPointX, startPointY);
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path.lineTo(startPointX + arrowWidth / 2, startPointY - arrowWidth / 2);
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path.lineTo(startPointX + arrowWidth, startPointY);
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path.lineTo(startPointX + arrowWidth, startPointY + 1.0);
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path.lineTo(startPointX + arrowWidth / 2, startPointY - arrowWidth / 2 + 1.0);
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path.lineTo(startPointX, startPointY + 1.0);
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path.close();
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startPointY = size.height / 2 + arrowWidth / 2;
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path.moveTo(startPointX + arrowWidth, startPointY);
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path.lineTo(startPointX + arrowWidth / 2, startPointY + arrowWidth / 2);
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path.lineTo(startPointX, startPointY);
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path.lineTo(startPointX, startPointY - 1.0);
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path.lineTo(startPointX + arrowWidth / 2, startPointY + arrowWidth / 2 - 1.0);
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path.lineTo(startPointX + arrowWidth, startPointY - 1.0);
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path.close();
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return path;
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}
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@override
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bool shouldReclip(covariant CustomClipper<Path> oldClipper) => false;
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}
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