ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
48 lines • 6.37 kB
JavaScript
/**
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
*/
import { TinyColor } from '@ctrl/tinycolor';
export const getRoundNumber = (value) => Math.round(Number(value || 0));
const convertHsb2Hsv = (color) => {
if (color && typeof color === 'object' && 'h' in color && 'b' in color) {
const { b, ...resets } = color;
return {
...resets,
v: b
};
}
if (typeof color === 'string' && /hsb/.test(color)) {
return color.replace(/hsb/, 'hsv');
}
return color;
};
export class Color extends TinyColor {
constructor(color) {
super(convertHsb2Hsv(color));
}
toHsbString() {
const hsb = this.toHsb();
const saturation = getRoundNumber(hsb.s * 100);
const lightness = getRoundNumber(hsb.b * 100);
const hue = getRoundNumber(hsb.h);
const alpha = hsb.a;
const hsbString = `hsb(${hue}, ${saturation}%, ${lightness}%)`;
const hsbaString = `hsba(${hue}, ${saturation}%, ${lightness}%, ${alpha.toFixed(alpha === 0 ? 0 : 2)})`;
return alpha === 1 ? hsbString : hsbaString;
}
toHsb() {
let hsv = this.toHsv();
if (typeof this.originalInput === 'object' && this.originalInput) {
if ('h' in this.originalInput) {
hsv = this.originalInput;
}
}
const { v, ...resets } = hsv;
return {
...resets,
b: hsv.v
};
}
}
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