yubioath-flutter/lib/widgets/custom_icons.dart
2022-10-04 12:12:54 +02:00

106 lines
2.7 KiB
Dart
Executable File

/*
* Copyright (C) 2022 Yubico.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import 'dart:math';
import 'package:flutter/material.dart';
final Widget pushPinStrokeIcon = Builder(builder: (context) {
return CustomPaint(
painter: _StrikethroughPainter(IconTheme.of(context).color ?? Colors.black),
child: ClipPath(
clipper: _StrikethroughClipper(), child: const Icon(Icons.push_pin)),
);
});
class _StrikethroughClipper extends CustomClipper<Path> {
@override
Path getClip(Size size) {
Path path = Path()
..moveTo(0, 2)
..lineTo(0, size.height)
..lineTo(size.width - 2, size.height)
..lineTo(0, 2)
..moveTo(2, 0)
..lineTo(size.width, size.height - 2)
..lineTo(size.width, 0)
..lineTo(2, 0)
..close();
return path;
}
@override
bool shouldReclip(covariant CustomClipper<Path> oldClipper) {
return false;
}
}
class _StrikethroughPainter extends CustomPainter {
final Color color;
_StrikethroughPainter(this.color);
@override
void paint(Canvas canvas, Size size) {
final paint = Paint()
..color = color
..strokeWidth = 1.3;
canvas.drawLine(Offset(size.width * 0.15, size.height * 0.15),
Offset(size.width * 0.8, size.height * 0.8), paint);
}
@override
bool shouldRepaint(covariant CustomPainter oldDelegate) {
return false;
}
}
final Widget nfcIcon = Builder(builder: (context) {
final theme = IconTheme.of(context);
return CustomPaint(
size: Size.square(theme.size ?? 24),
painter: _NfcIconPainter(theme.color ?? Colors.black),
);
});
class _NfcIconPainter extends CustomPainter {
final Color color;
_NfcIconPainter(this.color);
@override
void paint(Canvas canvas, Size size) {
final step = size.width / 4;
const sweep = pi / 4;
final paint = Paint()
..color = color
..style = PaintingStyle.stroke
..strokeCap = StrokeCap.round
..strokeWidth = step / 2;
final rect =
Offset(size.width * -1.7, 0) & Size(size.width * 2, size.height);
for (var i = 0; i < 3; i++) {
canvas.drawArc(rect.inflate(i * step), -sweep / 2, sweep, false, paint);
}
}
@override
bool shouldRepaint(covariant CustomPainter oldDelegate) {
return false;
}
}