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/! This source file is part of the open source project * ExpressionEngine (https://expressionengine.com) * * @link https://expressionengine.com/ * @copyright Copyright (c) 2003-2023, Packet Tide, LLC (https://www.packettide.com) * @license https://expressionengine.com/license Licensed under Apache License, Version 2.0 / /* * A class for basic color conversion, manipulation, and formatting. / var SimpleColor = /* @class / (function () { /* * Create a new SimpleColor * * Valid init types: * {r: 1, g: 1, b: 1} * {r: 1, g: 1, b: 1, a: 1} * {h: 1, s: 1, v: 1} * {h: 1, s: 1, v: 1, a} * #fff * #ffffff * #ffffff99 * rgb(255, 255, 255) * rgba(255, 255, 255, 0.6) / function SimpleColor(color) { var _this = this; this.isValid = false; this._rgba = { r: 1, g: 1, b: 1, a: 1 }; this.initValue = color; var foundColor = function (rgba) { _this._rgba = _this._safeRGB(rgba); _this.isValid = true; }; if (typeof color === 'string') { color = color.trim(); var fromHex = SimpleColor.hexToRgb(color); if (fromHex != null) { foundColor(fromHex); } else { var rgb = SimpleColor.getRgbFromString(color); if (rgb != null) foundColor(rgb); } } else if (this._isObject(color)) { if (this._objectHasKeys(color, ['r', 'g', 'b'])) foundColor(color); else if (this._objectHasKeys(color, ['h', 's', 'v'])) foundColor(SimpleColor.hsvToRgb(this._safeHSVColor(color))); } } Object.defineProperty(SimpleColor.prototype, "rgb", { // ------------------------------------------------------------------- // Public // ------------------------------------------------------------------- /* Returns the RGB values of this color / get: function () { return this._rgba; }, enumerable: true, configurable: true }); Object.defineProperty(SimpleColor.prototype, "rgb255", { /* Returns the RGB 255 values of this color / get: function () { return { r: Math.round(this._rgba.r 255), g: Math.round(this._rgba.g * 255), b: Math.round(this._rgba.b * 255), a: this._rgba.a }; }, enumerable: true, configurable: true }); Object.defineProperty(SimpleColor.prototype, "hsv", { /** Returns the HSV values of this color / get: function () { return SimpleColor.rgbToHsv(this._rgba); }, enumerable: true, configurable: true }); Object.defineProperty(SimpleColor.prototype, "brightness", { /* The perceived brightness of this color represented in a 0 to 1 value / get: function () { var rgb255 = this.rgb255; return (rgb255.r 299 + rgb255.g * 587 + rgb255.b * 114) / 1000; }, enumerable: true, configurable: true }); Object.defineProperty(SimpleColor.prototype, "hexStr", { /** Returns a hex string representing this color / get: function () { var rgb255 = this.rgb255; var componentToHex = function (c) { var hex = c.toString(16); return hex.length == 1 ? '0' + hex : hex; }; return '#' + componentToHex(rgb255.r) + componentToHex(rgb255.g) + componentToHex(rgb255.b); }, enumerable: true, configurable: true }); Object.defineProperty(SimpleColor.prototype, "rgbaStr", { /* Returns a css rgba() string representing this color / get: function () { var rgb255 = this.rgb255; return 'rgba(' + rgb255.r + ', ' + rgb255.g + ', ' + rgb255.b + ', ' + (+this._rgba.a.toFixed(2)) + ')'; }, enumerable: true, configurable: true }); /* Returns true or false if this color is considered dark / SimpleColor.prototype.isDark = function () { return this.brightness < 130; }; /* Returns a black or white color in contrast to this color / SimpleColor.prototype.fullContrastColor = function () { return this.isDark() ? SimpleColor.white : SimpleColor.black; }; /* Darkens or lightens the color with a -100 to 100 percentage / SimpleColor.prototype.shade = function (percent) { return new SimpleColor({ r: this._rgba.r + (percent / 100), g: this._rgba.g + (percent / 100), b: this._rgba.b + (percent / 100), a: this._rgba.a }); }; /* Returns a new color with the specified alpha component / SimpleColor.prototype.withAlpha = function (newAlpha) { return new SimpleColor(Object.assign({}, this.rgb, { a: newAlpha })); }; /* Returns a new color with any specified hsv components / SimpleColor.prototype.withHsv = function (newHsv) { return new SimpleColor(Object.assign({}, this.hsv, newHsv)); }; /* Returns a new color with any specified rgb components / SimpleColor.prototype.withRgb = function (newRgb) { return new SimpleColor(Object.assign({}, this.rgb, newRgb)); }; /* Checks if a SimpleColor is equal to this one / SimpleColor.prototype.equalTo = function (sColor) { var rgb = sColor.rgb; return (this._rgba.r === rgb.r && this._rgba.g === rgb.g && this._rgba.b === rgb.b && this._rgba.a === rgb.a); }; Object.defineProperty(SimpleColor, "black", { // ------------------------------------------------------------------- // Static // ------------------------------------------------------------------- /* A pure black color / get: function () { return new SimpleColor({ r: 0, g: 0, b: 0, a: 1 }); }, enumerable: true, configurable: true }); Object.defineProperty(SimpleColor, "white", { /* A pure white color / get: function () { return new SimpleColor({ r: 1, g: 1, b: 1, a: 1 }); }, enumerable: true, configurable: true }); /* Tries to get the rgba values from a css rgb() or rgba() string / SimpleColor.getRgbFromString = function (str) { var regex = /rgba?$\s(\d{1,3})\s,\s(\d{1,3})\s,\s(\d{1,3})\s$?(?:\s,\s(\d+\.\d+\|\d+)\s\))?/mi; var match = str.match(regex); if (match) { var r = match[1], g = match[2], b = match[3], a = match[4]; var checkMatch = function (m) { var num = parseFloat(m); return isNaN(num) ? 1 : num; }; return { r: checkMatch(r) / 255, g: checkMatch(g) / 255, b: checkMatch(b) / 255, a: checkMatch(a) }; } return null; }; /** Converts a 3, 6, or 8 digit hex string into an RGBA color / SimpleColor.hexToRgb = function (hex) { var a, b, g, r, u; if (hex.match(/^#?([A-Fa-f0-9]{6}\|[A-Fa-f0-9]{3})$/)) { if (hex.length === 4 \|\| hex.length === 7) { hex = hex.substr(1); } if (hex.length === 3) { var hSplit = hex.split(""); hex = hSplit[0] + hSplit[0] + hSplit[1] + hSplit[1] + hSplit[2] + hSplit[2]; } u = parseInt(hex, 16); r = u >> 16; g = u >> 8 & 0xFF; b = u & 0xFF; return { r: r / 255, g: g / 255, b: b / 255, a: 1 }; } if (hex.match(/^#?([A-Fa-f0-9]{8})$/)) { if (hex.length === 9) { hex = hex.substr(1); } u = parseInt(hex, 16); r = u >> 24 & 0xFF; g = u >> 16 & 0xFF; b = u >> 8 & 0xFF; a = (u & 0xFF) / 0xFF 100 / 100; return { r: r / 255, g: g / 255, b: b / 255, a: a }; } return null; }; /** Converts a HSV object to a RGB / SimpleColor.hsvToRgb = function (hsv) { var h = hsv.h; var s = hsv.s; var v = hsv.v; var a = hsv.hasOwnProperty('a') ? hsv.a : 1; var r, g, b, i, f, p, q, t; i = Math.floor(h 6); f = h * 6 - i; p = v * (1 - s); q = v * (1 - f * s); t = v * (1 - (1 - f) * s); switch (i % 6) { case 0: r = v, g = t, b = p; break; case 1: r = q, g = v, b = p; break; case 2: r = p, g = v, b = t; break; case 3: r = p, g = q, b = v; break; case 4: r = t, g = p, b = v; break; case 5: r = v, g = p, b = q; break; } return { r: r, g: g, b: b, a: a }; }; /** Converts an RGB object to a HSV / SimpleColor.rgbToHsv = function (rgb) { var r = rgb.r, g = rgb.g, b = rgb.b, a = rgb.a; var max = Math.max(r, g, b), min = Math.min(r, g, b); var h, s, v = max; var d = max - min; s = max === 0 ? 0 : d / max; if (max === min) { h = 0; } else { switch (max) { case r: h = (g - b) / d + (g < b ? 6 : 0); break; case g: h = (b - r) / d + 2; break; case b: h = (r - g) / d + 4; break; } h /= 6; } return { h: h, s: s, v: v, a: a }; }; // ------------------------------------------------------------------- // Private // ------------------------------------------------------------------- /* * Prevents the saturation and brightness values from being zero. * This prevents colors from losing their hue and saturation values when being converted to rgb. / SimpleColor.prototype._safeHSVColor = function (hsv) { hsv.s = hsv.s == 0 ? 0.000001 : hsv.s; hsv.v = hsv.v == 0 ? 0.000001 : hsv.v; return hsv; }; /* Makes sure all rgba values are present, are a number, and are between 0-1 / SimpleColor.prototype._safeRGB = function (rgb) { var check = function (n) { if (isNaN(n)) return 1; // Clamp the value return Math.min(Math.max(n, 0), 1); }; return { r: check(rgb.r), g: check(rgb.g), b: check(rgb.b), a: check(rgb.a) }; }; /* Returns true if an object has all the keys in the specified array */ SimpleColor.prototype._objectHasKeys = function (object, keys) { var objKeys = Object.keys(object); return keys.some(function (v) { return objKeys.indexOf(v) !== -1; }); }; SimpleColor.prototype._isObject = function (val) { if (val == null) { return false; } return (typeof val === 'function' \|\| typeof val === 'object'); }; return SimpleColor; }());

| ver. 1.4 | Github | .