@tak-ps/node-cot/dist/lib/utils/color.js

Lightweight JavaScript library for parsing and manipulating TAK messages

import _color from 'color';
/**
 * Helper functions for working with CoT Colours
 *
 * @param {Number|Number[]} color 32bit packged ARGB or [A, R, G, B]
 * @class
 */
export default class Color {
    r;
    g;
    b;
    a;
    constructor(color) {
        if (!isNaN(Number(color))) {
            color = Number(color);
            this.r = (color >> 16) & 255;
            this.g = (color >> 8) & 255;
            this.b = (color >> 0) & 255;
            this.a = ((color >> 24) & 255);
        }
        else if (Array.isArray(color)) {
            this.a = color[0];
            this.r = color[1];
            this.g = color[2];
            this.b = color[3];
        }
        else {
            const c = _color(color);
            this.a = c.alpha();
            this.r = c.red();
            this.g = c.green();
            this.b = c.blue();
        }
    }
    as_hex() {
        return _color({
            r: this.r,
            g: this.g,
            b: this.b,
        }).hex();
    }
    as_hexa() {
        return _color({
            r: this.r,
            g: this.g,
            b: this.b,
            alpha: this.a
        }).hexa();
    }
    as_32bit() {
        return (this.a << 24) | (this.r << 16) | (this.g << 8) | this.b;
    }
    as_opacity() {
        return this.a;
    }
    as_argb() {
        return [this.a, this.r, this.b, this.g];
    }
    as_rgb() {
        return [this.r, this.b, this.g];
    }
}
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