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/*---------------------------------------------------------------------------------------------
color.ts
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { CharCode } from './charCode.js';
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function roundFloat(number: number, decimalPoints: number): number {
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const decimal = Math.pow(10, decimalPoints);
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return Math.round(number * decimal) / decimal;
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}
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export class RGBA {
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_rgbaBrand: void = undefined;
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/**
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* Red: integer in [0-255]
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*/
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readonly r: number;
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/**
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* Green: integer in [0-255]
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*/
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readonly g: number;
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/**
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* Blue: integer in [0-255]
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*/
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readonly b: number;
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/**
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* Alpha: float in [0-1]
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*/
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readonly a: number;
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constructor(r: number, g: number, b: number, a: number = 1) {
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this.r = Math.min(255, Math.max(0, r)) | 0;
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this.g = Math.min(255, Math.max(0, g)) | 0;
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this.b = Math.min(255, Math.max(0, b)) | 0;
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this.a = roundFloat(Math.max(Math.min(1, a), 0), 3);
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}
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static equals(a: RGBA, b: RGBA): boolean {
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return a.r === b.r && a.g === b.g && a.b === b.b && a.a === b.a;
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}
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export class HSLA {
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_hslaBrand: void = undefined;
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/**
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* Hue: integer in [0, 360]
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*/
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readonly h: number;
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/**
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* Saturation: float in [0, 1]
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*/
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readonly s: number;
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/**
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* Luminosity: float in [0, 1]
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*/
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readonly l: number;
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/**
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* Alpha: float in [0, 1]
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*/
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readonly a: number;
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constructor(h: number, s: number, l: number, a: number) {
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this.h = Math.max(Math.min(360, h), 0) | 0;
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this.s = roundFloat(Math.max(Math.min(1, s), 0), 3);