28 lines
913 B
Dart
28 lines
913 B
Dart
import 'package:flutter/material.dart';
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class HighlightDecoration extends Decoration {
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final Color color;
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const HighlightDecoration({@required this.color});
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@override
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_HighlightDecorationPainter createBoxPainter([VoidCallback onChanged]) {
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return _HighlightDecorationPainter(this, onChanged);
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}
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}
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class _HighlightDecorationPainter extends BoxPainter {
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final HighlightDecoration decoration;
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const _HighlightDecorationPainter(this.decoration, VoidCallback onChanged) : super(onChanged);
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@override
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void paint(Canvas canvas, Offset offset, ImageConfiguration configuration) {
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final size = configuration.size;
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final confHeight = size.height;
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final paintHeight = confHeight * .4;
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final rect = Rect.fromLTWH(offset.dx, offset.dy + confHeight - paintHeight, size.width, paintHeight);
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final paint = Paint()..color = decoration.color;
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canvas.drawRect(rect, paint);
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}
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}
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