@future-grid/fgp-graph/lib/services/colorService.js

fgp-graph is a chart lib based on Dygraphs

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.hsvToRGB = hsvToRGB;
exports.FgpColor = exports.RGB_COLOR_REGEX = void 0;

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

var RGB_COLOR_REGEX = /\((\d+),\s*(\d+),\s*(\d+)(,\s*(\d*.\d*))?\)/;
exports.RGB_COLOR_REGEX = RGB_COLOR_REGEX;

var FgpColor =
/*#__PURE__*/
function () {
  function FgpColor(r, g, b, a) {
    _classCallCheck(this, FgpColor);

    _defineProperty(this, "r", 0);

    _defineProperty(this, "g", 0);

    _defineProperty(this, "b", 0);

    _defineProperty(this, "a", 1);

    if (typeof r === 'string') {
      r = r.trim();

      if (r.indexOf('#') === 0) {
        r = r.substr(r.indexOf('#') + 1);
        this.r = parseInt(r.substr(0, 2), 16);
        this.g = parseInt(r.substr(2, 2), 16);
        this.b = parseInt(r.substr(4, 2), 16);
      } else if (r.indexOf('rgb') === 0) {
        var res = RGB_COLOR_REGEX.exec(r);

        if (res) {
          this.r = parseInt(res[1], 10);
          this.g = parseInt(res[2], 10);
          this.b = parseInt(res[3], 10);
          this.a = res[5] ? parseFloat(res[5]) : 1;
        }
      }
    } else {
      this.r = r ? r : 0;
      this.g = g ? g : 0;
      this.b = b ? b : 0;
      this.a = a || 1;
    }
  }

  _createClass(FgpColor, [{
    key: "toHex",
    value: function toHex() {
      return '#' + this.r.toString(16) + this.g.toString(16) + this.b.toString(16);
    }
  }, {
    key: "toRgb",
    value: function toRgb() {
      return "rgb(".concat(this.r, ", ").concat(this.g, ", ").concat(this.b, ")");
    }
  }, {
    key: "toRgba",
    value: function toRgba() {
      return "rgba(".concat(this.r, ", ").concat(this.g, ", ").concat(this.b, ", ").concat(this.a, ")");
    }
  }, {
    key: "toRgbWithAlpha",
    value: function toRgbWithAlpha(a) {
      return "rgba(".concat(this.r, ", ").concat(this.g, ", ").concat(this.b, ", ").concat(a, ")");
    }
  }]);

  return FgpColor;
}();

exports.FgpColor = FgpColor;

function hsvToRGB(hue, saturation, value) {
  var red = 0;
  var green = 0;
  var blue = 0;

  if (saturation === 0) {
    red = value;
    green = value;
    blue = value;
  } else {
    var i = Math.floor(hue * 6);
    var f = hue * 6 - i;
    var p = value * (1 - saturation);
    var q = value * (1 - saturation * f);
    var t = value * (1 - saturation * (1 - f));

    switch (i) {
      case 1:
        red = q;
        green = value;
        blue = p;
        break;

      case 2:
        red = p;
        green = value;
        blue = t;
        break;

      case 3:
        red = p;
        green = q;
        blue = value;
        break;

      case 4:
        red = t;
        green = p;
        blue = value;
        break;

      case 5:
        red = value;
        green = p;
        blue = q;
        break;

      case 6: // fall through

      case 0:
        red = value;
        green = t;
        blue = p;
        break;
    }
  }

  red = Math.floor(255 * red + 0.5);
  green = Math.floor(255 * green + 0.5);
  blue = Math.floor(255 * blue + 0.5);
  return 'rgb(' + red + ',' + green + ',' + blue + ')';
}
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parseFloat(res[5]) : 1;\n                }\n            }\n        } else {\n            this.r = r ? r : 0;\n            this.g = g ? g : 0;\n            this.b = b ? b : 0;\n            this.a = a || 1;\n        }\n    }\n\n    toHex() {\n        return '#' + this.r.toString(16) + this.g.toString(16) + this.b.toString(16);\n    }\n\n    toRgb() {\n        return `rgb(${this.r}, ${this.g}, ${this.b})`;\n    }\n\n    toRgba() {\n        return `rgba(${this.r}, ${this.g}, ${this.b}, ${this.a})`;\n    }\n\n    toRgbWithAlpha(a: number) {\n        return `rgba(${this.r}, ${this.g}, ${this.b}, ${a})`;\n    }\n}\n\n\nexport function hsvToRGB(hue: number, saturation: number, value: number) {\n    let red = 0;\n    let green = 0;\n    let blue = 0;\n    if (saturation === 0) {\n        red = value;\n        green = value;\n        blue = value;\n    } else {\n        let i = Math.floor(hue * 6);\n        let f = (hue * 6) - i;\n        let p = value * (1 - saturation);\n        let q = value * (1 - (saturation * f));\n        let t = value * (1 - (saturation * (1 - f)));\n        switch (i) {\n            case 1:\n                red = q;\n                green = value;\n                blue = p;\n                break;\n            case 2:\n                red = p;\n                green = value;\n                blue = t;\n                break;\n            case 3:\n                red = p;\n                green = q;\n                blue = value;\n                break;\n            case 4:\n                red = t;\n                green = p;\n                blue = value;\n                break;\n            case 5:\n                red = value;\n                green = p;\n                blue = q;\n                break;\n            case 6: // fall through\n            case 0:\n                red = value;\n                green = t;\n                blue = p;\n                break;\n        }\n    }\n    red = Math.floor(255 * red + 0.5);\n    green = Math.floor(255 * green + 0.5);\n    blue = Math.floor(255 * blue + 0.5);\n    return 'rgb(' + red + ',' + green + ',' + blue + ')';\n}"]}