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chore: Cache string colors

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This commit is contained in:
Christian Pauly 2022-08-08 08:31:12 +02:00
parent 236c5b1648
commit 63aaaaaaa6
1 changed files with 13 additions and 14 deletions
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27
lib/utils/string_color.dart
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@ -1,30 +1,29 @@
import 'package:flutter/material.dart';
extension StringColor on String {
Color get color {
static final _colorCache = <String, Map<double, Color>>{};
Color _getColorLight(double light) {
var number = 0.0;
for (var i = 0; i < length; i++) {
number += codeUnitAt(i);
}
number = (number % 12) * 25.5;
return HSLColor.fromAHSL(1, number, 1, 0.35).toColor();
return HSLColor.fromAHSL(1, number, 1, light).toColor();
}
Color get color {
_colorCache[this] ??= {};
return _colorCache[this]![0.35] ??= _getColorLight(0.35);
}
Color get darkColor {
var number = 0.0;
for (var i = 0; i < length; i++) {
number += codeUnitAt(i);
}
number = (number % 12) * 25.5;
return HSLColor.fromAHSL(1, number, 1, 0.2).toColor();
_colorCache[this] ??= {};
return _colorCache[this]![0.2] ??= _getColorLight(0.2);
}
Color get lightColor {
var number = 0.0;
for (var i = 0; i < length; i++) {
number += codeUnitAt(i);
}
number = (number % 12) * 25.5;
return HSLColor.fromAHSL(1, number, 1, 0.40).toColor();
_colorCache[this] ??= {};
return _colorCache[this]![0.4] ??= _getColorLight(0.4);
}
}