48 lines
1.1 KiB
JavaScript
48 lines
1.1 KiB
JavaScript
import {compose, Property} from '@avocado/core';
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const decorate = compose(
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Property('red'),
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Property('green'),
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Property('blue'),
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Property('alpha'),
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)
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export class Color {
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static fromCss(css) {
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if ('#'.charCodeAt(0) === css.charCodeAt(0)) {
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let hex = css.substr(1);
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if (3 === hex.length) {
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hex = hex.split('').map((c) => c + c).join('');
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}
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const red = parseInt(hex.substr(0, 2), 16);
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const green = parseInt(hex.substr(2, 2), 16);
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const blue = parseInt(hex.substr(4, 2), 16);
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return new Color(red, green, blue);
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}
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else {
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const colors = css.replace(
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/\s/g, ''
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).match(
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/rgba?\((.*)\)/
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)[1].split(',');
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return new Color(colors[0], colors[1], colors[2], colors[3] || 1);
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}
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}
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constructor(red = 255, green = 0, blue = 255, alpha = 1) {
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this.red = red;
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this.green = green;
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this.blue = blue;
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this.alpha = alpha;
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}
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toCss() {
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return `rgba(${this.red}, ${this.green}, ${this.blue}, ${this.alpha})`;
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}
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toInteger() {
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return (this.red << 16) | (this.green << 8) | this.blue;
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}
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} |