| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| .bezierEasingMixin() { |
| @functions: ~`(function() { |
| var NEWTON_ITERATIONS = 4; |
| var NEWTON_MIN_SLOPE = 0.001; |
| var SUBDIVISION_PRECISION = 0.0000001; |
| var SUBDIVISION_MAX_ITERATIONS = 10; |
| |
| var kSplineTableSize = 11; |
| var kSampleStepSize = 1.0 / (kSplineTableSize - 1.0); |
| |
| var float32ArraySupported = typeof Float32Array === 'function'; |
| |
| function A (aA1, aA2) { return 1.0 - 3.0 * aA2 + 3.0 * aA1; } |
| function B (aA1, aA2) { return 3.0 * aA2 - 6.0 * aA1; } |
| function C (aA1) { return 3.0 * aA1; } |
| |
| // Returns x(t) given t, x1, and x2, or y(t) given t, y1, and y2. |
| function calcBezier (aT, aA1, aA2) { return ((A(aA1, aA2) * aT + B(aA1, aA2)) * aT + C(aA1)) * aT; } |
| |
| // Returns dx/dt given t, x1, and x2, or dy/dt given t, y1, and y2. |
| function getSlope (aT, aA1, aA2) { return 3.0 * A(aA1, aA2) * aT * aT + 2.0 * B(aA1, aA2) * aT + C(aA1); } |
| |
| function binarySubdivide (aX, aA, aB, mX1, mX2) { |
| var currentX, currentT, i = 0; |
| do { |
| currentT = aA + (aB - aA) / 2.0; |
| currentX = calcBezier(currentT, mX1, mX2) - aX; |
| if (currentX > 0.0) { |
| aB = currentT; |
| } else { |
| aA = currentT; |
| } |
| } while (Math.abs(currentX) > SUBDIVISION_PRECISION && ++i < SUBDIVISION_MAX_ITERATIONS); |
| return currentT; |
| } |
| |
| function newtonRaphsonIterate (aX, aGuessT, mX1, mX2) { |
| for (var i = 0; i < NEWTON_ITERATIONS; ++i) { |
| var currentSlope = getSlope(aGuessT, mX1, mX2); |
| if (currentSlope === 0.0) { |
| return aGuessT; |
| } |
| var currentX = calcBezier(aGuessT, mX1, mX2) - aX; |
| aGuessT -= currentX / currentSlope; |
| } |
| return aGuessT; |
| } |
| |
| var BezierEasing = function (mX1, mY1, mX2, mY2) { |
| if (!(0 <= mX1 && mX1 <= 1 && 0 <= mX2 && mX2 <= 1)) { |
| throw new Error('bezier x values must be in [0, 1] range'); |
| } |
| |
| // Precompute samples table |
| var sampleValues = float32ArraySupported ? new Float32Array(kSplineTableSize) : new Array(kSplineTableSize); |
| if (mX1 !== mY1 || mX2 !== mY2) { |
| for (var i = 0; i < kSplineTableSize; ++i) { |
| sampleValues[i] = calcBezier(i * kSampleStepSize, mX1, mX2); |
| } |
| } |
| |
| function getTForX (aX) { |
| var intervalStart = 0.0; |
| var currentSample = 1; |
| var lastSample = kSplineTableSize - 1; |
| |
| for (; currentSample !== lastSample && sampleValues[currentSample] <= aX; ++currentSample) { |
| intervalStart += kSampleStepSize; |
| } |
| --currentSample; |
| |
| // Interpolate to provide an initial guess for t |
| var dist = (aX - sampleValues[currentSample]) / (sampleValues[currentSample + 1] - sampleValues[currentSample]); |
| var guessForT = intervalStart + dist * kSampleStepSize; |
| |
| var initialSlope = getSlope(guessForT, mX1, mX2); |
| if (initialSlope >= NEWTON_MIN_SLOPE) { |
| return newtonRaphsonIterate(aX, guessForT, mX1, mX2); |
| } else if (initialSlope === 0.0) { |
| return guessForT; |
| } else { |
| return binarySubdivide(aX, intervalStart, intervalStart + kSampleStepSize, mX1, mX2); |
| } |
| } |
| |
| return function BezierEasing (x) { |
| if (mX1 === mY1 && mX2 === mY2) { |
| return x; // linear |
| } |
| // Because JavaScript number are imprecise, we should guarantee the extremes are right. |
| if (x === 0) { |
| return 0; |
| } |
| if (x === 1) { |
| return 1; |
| } |
| return calcBezier(getTForX(x), mY1, mY2); |
| }; |
| }; |
| |
| this.colorEasing = BezierEasing(0.26, 0.09, 0.37, 0.18); |
| // less 3 requires a return |
| return ''; |
| })()`; |
| } |
| // It is hacky way to make this function will be compiled preferentially by less |
| // resolve error: `ReferenceError: colorPalette is not defined` |
| // https://github.com/ant-design/ant-motion/issues/44 |
| .bezierEasingMixin(); |
| |
| /* stylelint-disable declaration-bang-space-before,no-duplicate-selectors,string-no-newline */ |
| .tinyColorMixin() { |
| @functions: ~`(function() { |
| // TinyColor v1.4.1 |
| // https://github.com/bgrins/TinyColor |
| // 2016-07-07, Brian Grinstead, MIT License |
| var trimLeft = /^\s+/, |
| trimRight = /\s+$/, |
| tinyCounter = 0, |
| mathRound = Math.round, |
| mathMin = Math.min, |
| mathMax = Math.max, |
| mathRandom = Math.random; |
| |
| function tinycolor (color, opts) { |
| |
| color = (color) ? color : ''; |
| opts = opts || { }; |
| |
| // If input is already a tinycolor, return itself |
| if (color instanceof tinycolor) { |
| return color; |
| } |
| // If we are called as a function, call using new instead |
| if (!(this instanceof tinycolor)) { |
| return new tinycolor(color, opts); |
| } |
| |
| var rgb = inputToRGB(color); |
| this._originalInput = color, |
| this._r = rgb.r, |
| this._g = rgb.g, |
| this._b = rgb.b, |
| this._a = rgb.a, |
| this._roundA = mathRound(100*this._a) / 100, |
| this._format = opts.format || rgb.format; |
| this._gradientType = opts.gradientType; |
| |
| // Don't let the range of [0,255] come back in [0,1]. |
| // Potentially lose a little bit of precision here, but will fix issues where |
| // .5 gets interpreted as half of the total, instead of half of 1 |
| // If it was supposed to be 128, this was already taken care of by inputToRgb |
| if (this._r < 1) { this._r = mathRound(this._r); } |
| if (this._g < 1) { this._g = mathRound(this._g); } |
| if (this._b < 1) { this._b = mathRound(this._b); } |
| |
| this._ok = rgb.ok; |
| this._tc_id = tinyCounter++; |
| } |
| |
| tinycolor.prototype = { |
| isDark: function() { |
| return this.getBrightness() < 128; |
| }, |
| isLight: function() { |
| return !this.isDark(); |
| }, |
| isValid: function() { |
| return this._ok; |
| }, |
| getOriginalInput: function() { |
| return this._originalInput; |
| }, |
| getFormat: function() { |
| return this._format; |
| }, |
| getAlpha: function() { |
| return this._a; |
| }, |
| getBrightness: function() { |
| //http://www.w3.org/TR/AERT#color-contrast |
| var rgb = this.toRgb(); |
| return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000; |
| }, |
| getLuminance: function() { |
| //http://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef |
| var rgb = this.toRgb(); |
| var RsRGB, GsRGB, BsRGB, R, G, B; |
| RsRGB = rgb.r/255; |
| GsRGB = rgb.g/255; |
| BsRGB = rgb.b/255; |
| |
| if (RsRGB <= 0.03928) {R = RsRGB / 12.92;} else {R = Math.pow(((RsRGB + 0.055) / 1.055), 2.4);} |
| if (GsRGB <= 0.03928) {G = GsRGB / 12.92;} else {G = Math.pow(((GsRGB + 0.055) / 1.055), 2.4);} |
| if (BsRGB <= 0.03928) {B = BsRGB / 12.92;} else {B = Math.pow(((BsRGB + 0.055) / 1.055), 2.4);} |
| return (0.2126 * R) + (0.7152 * G) + (0.0722 * B); |
| }, |
| setAlpha: function(value) { |
| this._a = boundAlpha(value); |
| this._roundA = mathRound(100*this._a) / 100; |
| return this; |
| }, |
| toHsv: function() { |
| var hsv = rgbToHsv(this._r, this._g, this._b); |
| return { h: hsv.h * 360, s: hsv.s, v: hsv.v, a: this._a }; |
| }, |
| toHsvString: function() { |
| var hsv = rgbToHsv(this._r, this._g, this._b); |
| var h = mathRound(hsv.h * 360), s = mathRound(hsv.s * 100), v = mathRound(hsv.v * 100); |
| return (this._a == 1) ? |
| "hsv(" + h + ", " + s + "%, " + v + "%)" : |
| "hsva(" + h + ", " + s + "%, " + v + "%, "+ this._roundA + ")"; |
| }, |
| toHsl: function() { |
| var hsl = rgbToHsl(this._r, this._g, this._b); |
| return { h: hsl.h * 360, s: hsl.s, l: hsl.l, a: this._a }; |
| }, |
| toHslString: function() { |
| var hsl = rgbToHsl(this._r, this._g, this._b); |
| var h = mathRound(hsl.h * 360), s = mathRound(hsl.s * 100), l = mathRound(hsl.l * 100); |
| return (this._a == 1) ? |
| "hsl(" + h + ", " + s + "%, " + l + "%)" : |
| "hsla(" + h + ", " + s + "%, " + l + "%, "+ this._roundA + ")"; |
| }, |
| toHex: function(allow3Char) { |
| return rgbToHex(this._r, this._g, this._b, allow3Char); |
| }, |
| toHexString: function(allow3Char) { |
| return '#' + this.toHex(allow3Char); |
| }, |
| toHex8: function(allow4Char) { |
| return rgbaToHex(this._r, this._g, this._b, this._a, allow4Char); |
| }, |
| toHex8String: function(allow4Char) { |
| return '#' + this.toHex8(allow4Char); |
| }, |
| toRgb: function() { |
| return { r: mathRound(this._r), g: mathRound(this._g), b: mathRound(this._b), a: this._a }; |
| }, |
| toRgbString: function() { |
| return (this._a == 1) ? |
| "rgb(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ")" : |
| "rgba(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ", " + this._roundA + ")"; |
| }, |
| toPercentageRgb: function() { |
| return { r: mathRound(bound01(this._r, 255) * 100) + "%", g: mathRound(bound01(this._g, 255) * 100) + "%", b: mathRound(bound01(this._b, 255) * 100) + "%", a: this._a }; |
| }, |
| toPercentageRgbString: function() { |
| return (this._a == 1) ? |
| "rgb(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%)" : |
| "rgba(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%, " + this._roundA + ")"; |
| }, |
| toName: function() { |
| if (this._a === 0) { |
| return "transparent"; |
| } |
| |
| if (this._a < 1) { |
| return false; |
| } |
| |
| return hexNames[rgbToHex(this._r, this._g, this._b, true)] || false; |
| }, |
| toFilter: function(secondColor) { |
| var hex8String = '#' + rgbaToArgbHex(this._r, this._g, this._b, this._a); |
| var secondHex8String = hex8String; |
| var gradientType = this._gradientType ? "GradientType = 1, " : ""; |
| |
| if (secondColor) { |
| var s = tinycolor(secondColor); |
| secondHex8String = '#' + rgbaToArgbHex(s._r, s._g, s._b, s._a); |
| } |
| |
| return "progid:DXImageTransform.Microsoft.gradient("+gradientType+"startColorstr="+hex8String+",endColorstr="+secondHex8String+")"; |
| }, |
| toString: function(format) { |
| var formatSet = !!format; |
| format = format || this._format; |
| |
| var formattedString = false; |
| var hasAlpha = this._a < 1 && this._a >= 0; |
| var needsAlphaFormat = !formatSet && hasAlpha && (format === "hex" || format === "hex6" || format === "hex3" || format === "hex4" || format === "hex8" || format === "name"); |
| |
| if (needsAlphaFormat) { |
| // Special case for "transparent", all other non-alpha formats |
| // will return rgba when there is transparency. |
| if (format === "name" && this._a === 0) { |
| return this.toName(); |
| } |
| return this.toRgbString(); |
| } |
| if (format === "rgb") { |
| formattedString = this.toRgbString(); |
| } |
| if (format === "prgb") { |
| formattedString = this.toPercentageRgbString(); |
| } |
| if (format === "hex" || format === "hex6") { |
| formattedString = this.toHexString(); |
| } |
| if (format === "hex3") { |
| formattedString = this.toHexString(true); |
| } |
| if (format === "hex4") { |
| formattedString = this.toHex8String(true); |
| } |
| if (format === "hex8") { |
| formattedString = this.toHex8String(); |
| } |
| if (format === "name") { |
| formattedString = this.toName(); |
| } |
| if (format === "hsl") { |
| formattedString = this.toHslString(); |
| } |
| if (format === "hsv") { |
| formattedString = this.toHsvString(); |
| } |
| |
| return formattedString || this.toHexString(); |
| }, |
| clone: function() { |
| return tinycolor(this.toString()); |
| }, |
| |
| _applyModification: function(fn, args) { |
| var color = fn.apply(null, [this].concat([].slice.call(args))); |
| this._r = color._r; |
| this._g = color._g; |
| this._b = color._b; |
| this.setAlpha(color._a); |
| return this; |
| }, |
| lighten: function() { |
| return this._applyModification(lighten, arguments); |
| }, |
| brighten: function() { |
| return this._applyModification(brighten, arguments); |
| }, |
| darken: function() { |
| return this._applyModification(darken, arguments); |
| }, |
| desaturate: function() { |
| return this._applyModification(desaturate, arguments); |
| }, |
| saturate: function() { |
| return this._applyModification(saturate, arguments); |
| }, |
| greyscale: function() { |
| return this._applyModification(greyscale, arguments); |
| }, |
| spin: function() { |
| return this._applyModification(spin, arguments); |
| }, |
| |
| _applyCombination: function(fn, args) { |
| return fn.apply(null, [this].concat([].slice.call(args))); |
| }, |
| analogous: function() { |
| return this._applyCombination(analogous, arguments); |
| }, |
| complement: function() { |
| return this._applyCombination(complement, arguments); |
| }, |
| monochromatic: function() { |
| return this._applyCombination(monochromatic, arguments); |
| }, |
| splitcomplement: function() { |
| return this._applyCombination(splitcomplement, arguments); |
| }, |
| triad: function() { |
| return this._applyCombination(triad, arguments); |
| }, |
| tetrad: function() { |
| return this._applyCombination(tetrad, arguments); |
| } |
| }; |
| |
| // If input is an object, force 1 into "1.0" to handle ratios properly |
| // String input requires "1.0" as input, so 1 will be treated as 1 |
| tinycolor.fromRatio = function(color, opts) { |
| if (typeof color == "object") { |
| var newColor = {}; |
| for (var i in color) { |
| if (color.hasOwnProperty(i)) { |
| if (i === "a") { |
| newColor[i] = color[i]; |
| } |
| else { |
| newColor[i] = convertToPercentage(color[i]); |
| } |
| } |
| } |
| color = newColor; |
| } |
| |
| return tinycolor(color, opts); |
| }; |
| |
| // Given a string or object, convert that input to RGB |
| // Possible string inputs: |
| // |
| // "red" |
| // "#f00" or "f00" |
| // "#ff0000" or "ff0000" |
| // "#ff000000" or "ff000000" |
| // "rgb 255 0 0" or "rgb (255, 0, 0)" |
| // "rgb 1.0 0 0" or "rgb (1, 0, 0)" |
| // "rgba (255, 0, 0, 1)" or "rgba 255, 0, 0, 1" |
| // "rgba (1.0, 0, 0, 1)" or "rgba 1.0, 0, 0, 1" |
| // "hsl(0, 100%, 50%)" or "hsl 0 100% 50%" |
| // "hsla(0, 100%, 50%, 1)" or "hsla 0 100% 50%, 1" |
| // "hsv(0, 100%, 100%)" or "hsv 0 100% 100%" |
| // |
| function inputToRGB(color) { |
| |
| var rgb = { r: 0, g: 0, b: 0 }; |
| var a = 1; |
| var s = null; |
| var v = null; |
| var l = null; |
| var ok = false; |
| var format = false; |
| |
| if (typeof color == "string") { |
| color = stringInputToObject(color); |
| } |
| |
| if (typeof color == "object") { |
| if (isValidCSSUnit(color.r) && isValidCSSUnit(color.g) && isValidCSSUnit(color.b)) { |
| rgb = rgbToRgb(color.r, color.g, color.b); |
| ok = true; |
| format = String(color.r).substr(-1) === "%" ? "prgb" : "rgb"; |
| } |
| else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.v)) { |
| s = convertToPercentage(color.s); |
| v = convertToPercentage(color.v); |
| rgb = hsvToRgb(color.h, s, v); |
| ok = true; |
| format = "hsv"; |
| } |
| else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.l)) { |
| s = convertToPercentage(color.s); |
| l = convertToPercentage(color.l); |
| rgb = hslToRgb(color.h, s, l); |
| ok = true; |
| format = "hsl"; |
| } |
| |
| if (color.hasOwnProperty("a")) { |
| a = color.a; |
| } |
| } |
| |
| a = boundAlpha(a); |
| |
| return { |
| ok: ok, |
| format: color.format || format, |
| r: mathMin(255, mathMax(rgb.r, 0)), |
| g: mathMin(255, mathMax(rgb.g, 0)), |
| b: mathMin(255, mathMax(rgb.b, 0)), |
| a: a |
| }; |
| } |
| |
| // Conversion Functions |
| // -------------------- |
| |
| // rgbToHsl, rgbToHsv, hslToRgb, hsvToRgb modified from: |
| // <http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript> |
| |
| // rgbToRgb |
| // Handle bounds / percentage checking to conform to CSS color spec |
| // <http://www.w3.org/TR/css3-color/> |
| // *Assumes:* r, g, b in [0, 255] or [0, 1] |
| // *Returns:* { r, g, b } in [0, 255] |
| function rgbToRgb(r, g, b){ |
| return { |
| r: bound01(r, 255) * 255, |
| g: bound01(g, 255) * 255, |
| b: bound01(b, 255) * 255 |
| }; |
| } |
| |
| // rgbToHsl |
| // Converts an RGB color value to HSL. |
| // *Assumes:* r, g, and b are contained in [0, 255] or [0, 1] |
| // *Returns:* { h, s, l } in [0,1] |
| function rgbToHsl(r, g, b) { |
| |
| r = bound01(r, 255); |
| g = bound01(g, 255); |
| b = bound01(b, 255); |
| |
| var max = mathMax(r, g, b), min = mathMin(r, g, b); |
| var h, s, l = (max + min) / 2; |
| |
| if(max == min) { |
| h = s = 0; // achromatic |
| } |
| else { |
| var d = max - min; |
| s = l > 0.5 ? d / (2 - max - min) : d / (max + min); |
| 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, l: l }; |
| } |
| |
| // hslToRgb |
| // Converts an HSL color value to RGB. |
| // *Assumes:* h is contained in [0, 1] or [0, 360] and s and l are contained [0, 1] or [0, 100] |
| // *Returns:* { r, g, b } in the set [0, 255] |
| function hslToRgb(h, s, l) { |
| var r, g, b; |
| |
| h = bound01(h, 360); |
| s = bound01(s, 100); |
| l = bound01(l, 100); |
| |
| function hue2rgb(p, q, t) { |
| if(t < 0) t += 1; |
| if(t > 1) t -= 1; |
| if(t < 1/6) return p + (q - p) * 6 * t; |
| if(t < 1/2) return q; |
| if(t < 2/3) return p + (q - p) * (2/3 - t) * 6; |
| return p; |
| } |
| |
| if(s === 0) { |
| r = g = b = l; // achromatic |
| } |
| else { |
| var q = l < 0.5 ? l * (1 + s) : l + s - l * s; |
| var p = 2 * l - q; |
| r = hue2rgb(p, q, h + 1/3); |
| g = hue2rgb(p, q, h); |
| b = hue2rgb(p, q, h - 1/3); |
| } |
| |
| return { r: r * 255, g: g * 255, b: b * 255 }; |
| } |
| |
| // rgbToHsv |
| // Converts an RGB color value to HSV |
| // *Assumes:* r, g, and b are contained in the set [0, 255] or [0, 1] |
| // *Returns:* { h, s, v } in [0,1] |
| function rgbToHsv(r, g, b) { |
| |
| r = bound01(r, 255); |
| g = bound01(g, 255); |
| b = bound01(b, 255); |
| |
| var max = mathMax(r, g, b), min = mathMin(r, g, b); |
| var h, s, v = max; |
| |
| var d = max - min; |
| s = max === 0 ? 0 : d / max; |
| |
| if(max == min) { |
| h = 0; // achromatic |
| } |
| 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 }; |
| } |
| |
| // hsvToRgb |
| // Converts an HSV color value to RGB. |
| // *Assumes:* h is contained in [0, 1] or [0, 360] and s and v are contained in [0, 1] or [0, 100] |
| // *Returns:* { r, g, b } in the set [0, 255] |
| function hsvToRgb(h, s, v) { |
| |
| h = bound01(h, 360) * 6; |
| s = bound01(s, 100); |
| v = bound01(v, 100); |
| |
| var i = Math.floor(h), |
| f = h - i, |
| p = v * (1 - s), |
| q = v * (1 - f * s), |
| t = v * (1 - (1 - f) * s), |
| mod = i % 6, |
| r = [v, q, p, p, t, v][mod], |
| g = [t, v, v, q, p, p][mod], |
| b = [p, p, t, v, v, q][mod]; |
| |
| return { r: r * 255, g: g * 255, b: b * 255 }; |
| } |
| |
| // rgbToHex |
| // Converts an RGB color to hex |
| // Assumes r, g, and b are contained in the set [0, 255] |
| // Returns a 3 or 6 character hex |
| function rgbToHex(r, g, b, allow3Char) { |
| |
| var hex = [ |
| pad2(mathRound(r).toString(16)), |
| pad2(mathRound(g).toString(16)), |
| pad2(mathRound(b).toString(16)) |
| ]; |
| |
| // Return a 3 character hex if possible |
| if (allow3Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1)) { |
| return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0); |
| } |
| |
| return hex.join(""); |
| } |
| |
| // rgbaToHex |
| // Converts an RGBA color plus alpha transparency to hex |
| // Assumes r, g, b are contained in the set [0, 255] and |
| // a in [0, 1]. Returns a 4 or 8 character rgba hex |
| function rgbaToHex(r, g, b, a, allow4Char) { |
| |
| var hex = [ |
| pad2(mathRound(r).toString(16)), |
| pad2(mathRound(g).toString(16)), |
| pad2(mathRound(b).toString(16)), |
| pad2(convertDecimalToHex(a)) |
| ]; |
| |
| // Return a 4 character hex if possible |
| if (allow4Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1) && hex[3].charAt(0) == hex[3].charAt(1)) { |
| return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0) + hex[3].charAt(0); |
| } |
| |
| return hex.join(""); |
| } |
| |
| // rgbaToArgbHex |
| // Converts an RGBA color to an ARGB Hex8 string |
| // Rarely used, but required for "toFilter()" |
| function rgbaToArgbHex(r, g, b, a) { |
| |
| var hex = [ |
| pad2(convertDecimalToHex(a)), |
| pad2(mathRound(r).toString(16)), |
| pad2(mathRound(g).toString(16)), |
| pad2(mathRound(b).toString(16)) |
| ]; |
| |
| return hex.join(""); |
| } |
| |
| // equals |
| // Can be called with any tinycolor input |
| tinycolor.equals = function (color1, color2) { |
| if (!color1 || !color2) { return false; } |
| return tinycolor(color1).toRgbString() == tinycolor(color2).toRgbString(); |
| }; |
| |
| tinycolor.random = function() { |
| return tinycolor.fromRatio({ |
| r: mathRandom(), |
| g: mathRandom(), |
| b: mathRandom() |
| }); |
| }; |
| |
| // Modification Functions |
| // ---------------------- |
| // Thanks to less.js for some of the basics here |
| // <https://github.com/cloudhead/less.js/blob/master/lib/less/functions.js> |
| |
| function desaturate(color, amount) { |
| amount = (amount === 0) ? 0 : (amount || 10); |
| var hsl = tinycolor(color).toHsl(); |
| hsl.s -= amount / 100; |
| hsl.s = clamp01(hsl.s); |
| return tinycolor(hsl); |
| } |
| |
| function saturate(color, amount) { |
| amount = (amount === 0) ? 0 : (amount || 10); |
| var hsl = tinycolor(color).toHsl(); |
| hsl.s += amount / 100; |
| hsl.s = clamp01(hsl.s); |
| return tinycolor(hsl); |
| } |
| |
| function greyscale(color) { |
| return tinycolor(color).desaturate(100); |
| } |
| |
| function lighten (color, amount) { |
| amount = (amount === 0) ? 0 : (amount || 10); |
| var hsl = tinycolor(color).toHsl(); |
| hsl.l += amount / 100; |
| hsl.l = clamp01(hsl.l); |
| return tinycolor(hsl); |
| } |
| |
| function brighten(color, amount) { |
| amount = (amount === 0) ? 0 : (amount || 10); |
| var rgb = tinycolor(color).toRgb(); |
| rgb.r = mathMax(0, mathMin(255, rgb.r - mathRound(255 * - (amount / 100)))); |
| rgb.g = mathMax(0, mathMin(255, rgb.g - mathRound(255 * - (amount / 100)))); |
| rgb.b = mathMax(0, mathMin(255, rgb.b - mathRound(255 * - (amount / 100)))); |
| return tinycolor(rgb); |
| } |
| |
| function darken (color, amount) { |
| amount = (amount === 0) ? 0 : (amount || 10); |
| var hsl = tinycolor(color).toHsl(); |
| hsl.l -= amount / 100; |
| hsl.l = clamp01(hsl.l); |
| return tinycolor(hsl); |
| } |
| |
| // Spin takes a positive or negative amount within [-360, 360] indicating the change of hue. |
| // Values outside of this range will be wrapped into this range. |
| function spin(color, amount) { |
| var hsl = tinycolor(color).toHsl(); |
| var hue = (hsl.h + amount) % 360; |
| hsl.h = hue < 0 ? 360 + hue : hue; |
| return tinycolor(hsl); |
| } |
| |
| // Combination Functions |
| // --------------------- |
| // Thanks to jQuery xColor for some of the ideas behind these |
| // <https://github.com/infusion/jQuery-xcolor/blob/master/jquery.xcolor.js> |
| |
| function complement(color) { |
| var hsl = tinycolor(color).toHsl(); |
| hsl.h = (hsl.h + 180) % 360; |
| return tinycolor(hsl); |
| } |
| |
| function triad(color) { |
| var hsl = tinycolor(color).toHsl(); |
| var h = hsl.h; |
| return [ |
| tinycolor(color), |
| tinycolor({ h: (h + 120) % 360, s: hsl.s, l: hsl.l }), |
| tinycolor({ h: (h + 240) % 360, s: hsl.s, l: hsl.l }) |
| ]; |
| } |
| |
| function tetrad(color) { |
| var hsl = tinycolor(color).toHsl(); |
| var h = hsl.h; |
| return [ |
| tinycolor(color), |
| tinycolor({ h: (h + 90) % 360, s: hsl.s, l: hsl.l }), |
| tinycolor({ h: (h + 180) % 360, s: hsl.s, l: hsl.l }), |
| tinycolor({ h: (h + 270) % 360, s: hsl.s, l: hsl.l }) |
| ]; |
| } |
| |
| function splitcomplement(color) { |
| var hsl = tinycolor(color).toHsl(); |
| var h = hsl.h; |
| return [ |
| tinycolor(color), |
| tinycolor({ h: (h + 72) % 360, s: hsl.s, l: hsl.l}), |
| tinycolor({ h: (h + 216) % 360, s: hsl.s, l: hsl.l}) |
| ]; |
| } |
| |
| function analogous(color, results, slices) { |
| results = results || 6; |
| slices = slices || 30; |
| |
| var hsl = tinycolor(color).toHsl(); |
| var part = 360 / slices; |
| var ret = [tinycolor(color)]; |
| |
| for (hsl.h = ((hsl.h - (part * results >> 1)) + 720) % 360; --results; ) { |
| hsl.h = (hsl.h + part) % 360; |
| ret.push(tinycolor(hsl)); |
| } |
| return ret; |
| } |
| |
| function monochromatic(color, results) { |
| results = results || 6; |
| var hsv = tinycolor(color).toHsv(); |
| var h = hsv.h, s = hsv.s, v = hsv.v; |
| var ret = []; |
| var modification = 1 / results; |
| |
| while (results--) { |
| ret.push(tinycolor({ h: h, s: s, v: v})); |
| v = (v + modification) % 1; |
| } |
| |
| return ret; |
| } |
| |
| // Utility Functions |
| // --------------------- |
| |
| tinycolor.mix = function(color1, color2, amount) { |
| amount = (amount === 0) ? 0 : (amount || 50); |
| |
| var rgb1 = tinycolor(color1).toRgb(); |
| var rgb2 = tinycolor(color2).toRgb(); |
| |
| var p = amount / 100; |
| |
| var rgba = { |
| r: ((rgb2.r - rgb1.r) * p) + rgb1.r, |
| g: ((rgb2.g - rgb1.g) * p) + rgb1.g, |
| b: ((rgb2.b - rgb1.b) * p) + rgb1.b, |
| a: ((rgb2.a - rgb1.a) * p) + rgb1.a |
| }; |
| |
| return tinycolor(rgba); |
| }; |
| |
| // Readability Functions |
| // --------------------- |
| // <http://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef (WCAG Version 2) |
| |
| // contrast |
| // Analyze the 2 colors and returns the color contrast defined by (WCAG Version 2) |
| tinycolor.readability = function(color1, color2) { |
| var c1 = tinycolor(color1); |
| var c2 = tinycolor(color2); |
| return (Math.max(c1.getLuminance(),c2.getLuminance())+0.05) / (Math.min(c1.getLuminance(),c2.getLuminance())+0.05); |
| }; |
| |
| // isReadable |
| // Ensure that foreground and background color combinations meet WCAG2 guidelines. |
| // The third argument is an optional Object. |
| // the 'level' property states 'AA' or 'AAA' - if missing or invalid, it defaults to 'AA'; |
| // the 'size' property states 'large' or 'small' - if missing or invalid, it defaults to 'small'. |
| // If the entire object is absent, isReadable defaults to {level:"AA",size:"small"}. |
| |
| // *Example* |
| // tinycolor.isReadable("#000", "#111") => false |
| // tinycolor.isReadable("#000", "#111",{level:"AA",size:"large"}) => false |
| tinycolor.isReadable = function(color1, color2, wcag2) { |
| var readability = tinycolor.readability(color1, color2); |
| var wcag2Parms, out; |
| |
| out = false; |
| |
| wcag2Parms = validateWCAG2Parms(wcag2); |
| switch (wcag2Parms.level + wcag2Parms.size) { |
| case "AAsmall": |
| case "AAAlarge": |
| out = readability >= 4.5; |
| break; |
| case "AAlarge": |
| out = readability >= 3; |
| break; |
| case "AAAsmall": |
| out = readability >= 7; |
| break; |
| } |
| return out; |
| |
| }; |
| |
| // mostReadable |
| // Given a base color and a list of possible foreground or background |
| // colors for that base, returns the most readable color. |
| // Optionally returns Black or White if the most readable color is unreadable. |
| // *Example* |
| // tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:false}).toHexString(); // "#112255" |
| // tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:true}).toHexString(); // "#ffffff" |
| // tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"large"}).toHexString(); // "#faf3f3" |
| // tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"small"}).toHexString(); // "#ffffff" |
| tinycolor.mostReadable = function(baseColor, colorList, args) { |
| var bestColor = null; |
| var bestScore = 0; |
| var readability; |
| var includeFallbackColors, level, size ; |
| args = args || {}; |
| includeFallbackColors = args.includeFallbackColors ; |
| level = args.level; |
| size = args.size; |
| |
| for (var i= 0; i < colorList.length ; i++) { |
| readability = tinycolor.readability(baseColor, colorList[i]); |
| if (readability > bestScore) { |
| bestScore = readability; |
| bestColor = tinycolor(colorList[i]); |
| } |
| } |
| |
| if (tinycolor.isReadable(baseColor, bestColor, {"level":level,"size":size}) || !includeFallbackColors) { |
| return bestColor; |
| } |
| else { |
| args.includeFallbackColors=false; |
| return tinycolor.mostReadable(baseColor,["#fff", "#000"],args); |
| } |
| }; |
| |
| // Big List of Colors |
| // ------------------ |
| // <http://www.w3.org/TR/css3-color/#svg-color> |
| var names = tinycolor.names = { |
| aliceblue: "f0f8ff", |
| antiquewhite: "faebd7", |
| aqua: "0ff", |
| aquamarine: "7fffd4", |
| azure: "f0ffff", |
| beige: "f5f5dc", |
| bisque: "ffe4c4", |
| black: "000", |
| blanchedalmond: "ffebcd", |
| blue: "00f", |
| blueviolet: "8a2be2", |
| brown: "a52a2a", |
| burlywood: "deb887", |
| burntsienna: "ea7e5d", |
| cadetblue: "5f9ea0", |
| chartreuse: "7fff00", |
| chocolate: "d2691e", |
| coral: "ff7f50", |
| cornflowerblue: "6495ed", |
| cornsilk: "fff8dc", |
| crimson: "dc143c", |
| cyan: "0ff", |
| darkblue: "00008b", |
| darkcyan: "008b8b", |
| darkgoldenrod: "b8860b", |
| darkgray: "a9a9a9", |
| darkgreen: "006400", |
| darkgrey: "a9a9a9", |
| darkkhaki: "bdb76b", |
| darkmagenta: "8b008b", |
| darkolivegreen: "556b2f", |
| darkorange: "ff8c00", |
| darkorchid: "9932cc", |
| darkred: "8b0000", |
| darksalmon: "e9967a", |
| darkseagreen: "8fbc8f", |
| darkslateblue: "483d8b", |
| darkslategray: "2f4f4f", |
| darkslategrey: "2f4f4f", |
| darkturquoise: "00ced1", |
| darkviolet: "9400d3", |
| deeppink: "ff1493", |
| deepskyblue: "00bfff", |
| dimgray: "696969", |
| dimgrey: "696969", |
| dodgerblue: "1e90ff", |
| firebrick: "b22222", |
| floralwhite: "fffaf0", |
| forestgreen: "228b22", |
| fuchsia: "f0f", |
| gainsboro: "dcdcdc", |
| ghostwhite: "f8f8ff", |
| gold: "ffd700", |
| goldenrod: "daa520", |
| gray: "808080", |
| green: "008000", |
| greenyellow: "adff2f", |
| grey: "808080", |
| honeydew: "f0fff0", |
| hotpink: "ff69b4", |
| indianred: "cd5c5c", |
| indigo: "4b0082", |
| ivory: "fffff0", |
| khaki: "f0e68c", |
| lavender: "e6e6fa", |
| lavenderblush: "fff0f5", |
| lawngreen: "7cfc00", |
| lemonchiffon: "fffacd", |
| lightblue: "add8e6", |
| lightcoral: "f08080", |
| lightcyan: "e0ffff", |
| lightgoldenrodyellow: "fafad2", |
| lightgray: "d3d3d3", |
| lightgreen: "90ee90", |
| lightgrey: "d3d3d3", |
| lightpink: "ffb6c1", |
| lightsalmon: "ffa07a", |
| lightseagreen: "20b2aa", |
| lightskyblue: "87cefa", |
| lightslategray: "789", |
| lightslategrey: "789", |
| lightsteelblue: "b0c4de", |
| lightyellow: "ffffe0", |
| lime: "0f0", |
| limegreen: "32cd32", |
| linen: "faf0e6", |
| magenta: "f0f", |
| maroon: "800000", |
| mediumaquamarine: "66cdaa", |
| mediumblue: "0000cd", |
| mediumorchid: "ba55d3", |
| mediumpurple: "9370db", |
| mediumseagreen: "3cb371", |
| mediumslateblue: "7b68ee", |
| mediumspringgreen: "00fa9a", |
| mediumturquoise: "48d1cc", |
| mediumvioletred: "c71585", |
| midnightblue: "191970", |
| mintcream: "f5fffa", |
| mistyrose: "ffe4e1", |
| moccasin: "ffe4b5", |
| navajowhite: "ffdead", |
| navy: "000080", |
| oldlace: "fdf5e6", |
| olive: "808000", |
| olivedrab: "6b8e23", |
| orange: "ffa500", |
| orangered: "ff4500", |
| orchid: "da70d6", |
| palegoldenrod: "eee8aa", |
| palegreen: "98fb98", |
| paleturquoise: "afeeee", |
| palevioletred: "db7093", |
| papayawhip: "ffefd5", |
| peachpuff: "ffdab9", |
| peru: "cd853f", |
| pink: "ffc0cb", |
| plum: "dda0dd", |
| powderblue: "b0e0e6", |
| purple: "800080", |
| rebeccapurple: "663399", |
| red: "f00", |
| rosybrown: "bc8f8f", |
| royalblue: "4169e1", |
| saddlebrown: "8b4513", |
| salmon: "fa8072", |
| sandybrown: "f4a460", |
| seagreen: "2e8b57", |
| seashell: "fff5ee", |
| sienna: "a0522d", |
| silver: "c0c0c0", |
| skyblue: "87ceeb", |
| slateblue: "6a5acd", |
| slategray: "708090", |
| slategrey: "708090", |
| snow: "fffafa", |
| springgreen: "00ff7f", |
| steelblue: "4682b4", |
| tan: "d2b48c", |
| teal: "008080", |
| thistle: "d8bfd8", |
| tomato: "ff6347", |
| turquoise: "40e0d0", |
| violet: "ee82ee", |
| wheat: "f5deb3", |
| white: "fff", |
| whitesmoke: "f5f5f5", |
| yellow: "ff0", |
| yellowgreen: "9acd32" |
| }; |
| |
| // Make it easy to access colors via hexNames[hex] |
| var hexNames = tinycolor.hexNames = flip(names); |
| |
| // Utilities |
| // --------- |
| |
| // { 'name1': 'val1' } becomes { 'val1': 'name1' } |
| function flip(o) { |
| var flipped = { }; |
| for (var i in o) { |
| if (o.hasOwnProperty(i)) { |
| flipped[o[i]] = i; |
| } |
| } |
| return flipped; |
| } |
| |
| // Return a valid alpha value [0,1] with all invalid values being set to 1 |
| function boundAlpha(a) { |
| a = parseFloat(a); |
| |
| if (isNaN(a) || a < 0 || a > 1) { |
| a = 1; |
| } |
| |
| return a; |
| } |
| |
| // Take input from [0, n] and return it as [0, 1] |
| function bound01(n, max) { |
| if (isOnePointZero(n)) { n = "100%"; } |
| |
| var processPercent = isPercentage(n); |
| n = mathMin(max, mathMax(0, parseFloat(n))); |
| |
| // Automatically convert percentage into number |
| if (processPercent) { |
| n = parseInt(n * max, 10) / 100; |
| } |
| |
| // Handle floating point rounding errors |
| if ((Math.abs(n - max) < 0.000001)) { |
| return 1; |
| } |
| |
| // Convert into [0, 1] range if it isn't already |
| return (n % max) / parseFloat(max); |
| } |
| |
| // Force a number between 0 and 1 |
| function clamp01(val) { |
| return mathMin(1, mathMax(0, val)); |
| } |
| |
| // Parse a base-16 hex value into a base-10 integer |
| function parseIntFromHex(val) { |
| return parseInt(val, 16); |
| } |
| |
| // Need to handle 1.0 as 100%, since once it is a number, there is no difference between it and 1 |
| // <http://stackoverflow.com/questions/7422072/javascript-how-to-detect-number-as-a-decimal-including-1-0> |
| function isOnePointZero(n) { |
| return typeof n == "string" && n.indexOf('.') != -1 && parseFloat(n) === 1; |
| } |
| |
| // Check to see if string passed in is a percentage |
| function isPercentage(n) { |
| return typeof n === "string" && n.indexOf('%') != -1; |
| } |
| |
| // Force a hex value to have 2 characters |
| function pad2(c) { |
| return c.length == 1 ? '0' + c : '' + c; |
| } |
| |
| // Replace a decimal with it's percentage value |
| function convertToPercentage(n) { |
| if (n <= 1) { |
| n = (n * 100) + "%"; |
| } |
| |
| return n; |
| } |
| |
| // Converts a decimal to a hex value |
| function convertDecimalToHex(d) { |
| return Math.round(parseFloat(d) * 255).toString(16); |
| } |
| // Converts a hex value to a decimal |
| function convertHexToDecimal(h) { |
| return (parseIntFromHex(h) / 255); |
| } |
| |
| var matchers = (function() { |
| |
| // <http://www.w3.org/TR/css3-values/#integers> |
| var CSS_INTEGER = "[-\\+]?\\d+%?"; |
| |
| // <http://www.w3.org/TR/css3-values/#number-value> |
| var CSS_NUMBER = "[-\\+]?\\d*\\.\\d+%?"; |
| |
| // Allow positive/negative integer/number. Don't capture the either/or, just the entire outcome. |
| var CSS_UNIT = "(?:" + CSS_NUMBER + ")|(?:" + CSS_INTEGER + ")"; |
| |
| // Actual matching. |
| // Parentheses and commas are optional, but not required. |
| // Whitespace can take the place of commas or opening paren |
| var PERMISSIVE_MATCH3 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?"; |
| var PERMISSIVE_MATCH4 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?"; |
| |
| return { |
| CSS_UNIT: new RegExp(CSS_UNIT), |
| rgb: new RegExp("rgb" + PERMISSIVE_MATCH3), |
| rgba: new RegExp("rgba" + PERMISSIVE_MATCH4), |
| hsl: new RegExp("hsl" + PERMISSIVE_MATCH3), |
| hsla: new RegExp("hsla" + PERMISSIVE_MATCH4), |
| hsv: new RegExp("hsv" + PERMISSIVE_MATCH3), |
| hsva: new RegExp("hsva" + PERMISSIVE_MATCH4), |
| hex3: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/, |
| hex6: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/, |
| hex4: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/, |
| hex8: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/ |
| }; |
| })(); |
| |
| // isValidCSSUnit |
| // Take in a single string / number and check to see if it looks like a CSS unit |
| // (see matchers above for definition). |
| function isValidCSSUnit(color) { |
| return !!matchers.CSS_UNIT.exec(color); |
| } |
| |
| // stringInputToObject |
| // Permissive string parsing. Take in a number of formats, and output an object |
| // based on detected format. Returns { r, g, b } or { h, s, l } or { h, s, v} |
| function stringInputToObject(color) { |
| |
| color = color.replace(trimLeft, '').replace(trimRight, '').toLowerCase(); |
| var named = false; |
| if (names[color]) { |
| color = names[color]; |
| named = true; |
| } |
| else if (color == 'transparent') { |
| return { r: 0, g: 0, b: 0, a: 0, format: "name" }; |
| } |
| |
| // Try to match string input using regular expressions. |
| // Keep most of the number bounding out of this function - don't worry about [0,1] or [0,100] or [0,360] |
| // Just return an object and let the conversion functions handle that. |
| // This way the result will be the same whether the tinycolor is initialized with string or object. |
| var match; |
| if ((match = matchers.rgb.exec(color))) { |
| return { r: match[1], g: match[2], b: match[3] }; |
| } |
| if ((match = matchers.rgba.exec(color))) { |
| return { r: match[1], g: match[2], b: match[3], a: match[4] }; |
| } |
| if ((match = matchers.hsl.exec(color))) { |
| return { h: match[1], s: match[2], l: match[3] }; |
| } |
| if ((match = matchers.hsla.exec(color))) { |
| return { h: match[1], s: match[2], l: match[3], a: match[4] }; |
| } |
| if ((match = matchers.hsv.exec(color))) { |
| return { h: match[1], s: match[2], v: match[3] }; |
| } |
| if ((match = matchers.hsva.exec(color))) { |
| return { h: match[1], s: match[2], v: match[3], a: match[4] }; |
| } |
| if ((match = matchers.hex8.exec(color))) { |
| return { |
| r: parseIntFromHex(match[1]), |
| g: parseIntFromHex(match[2]), |
| b: parseIntFromHex(match[3]), |
| a: convertHexToDecimal(match[4]), |
| format: named ? "name" : "hex8" |
| }; |
| } |
| if ((match = matchers.hex6.exec(color))) { |
| return { |
| r: parseIntFromHex(match[1]), |
| g: parseIntFromHex(match[2]), |
| b: parseIntFromHex(match[3]), |
| format: named ? "name" : "hex" |
| }; |
| } |
| if ((match = matchers.hex4.exec(color))) { |
| return { |
| r: parseIntFromHex(match[1] + '' + match[1]), |
| g: parseIntFromHex(match[2] + '' + match[2]), |
| b: parseIntFromHex(match[3] + '' + match[3]), |
| a: convertHexToDecimal(match[4] + '' + match[4]), |
| format: named ? "name" : "hex8" |
| }; |
| } |
| if ((match = matchers.hex3.exec(color))) { |
| return { |
| r: parseIntFromHex(match[1] + '' + match[1]), |
| g: parseIntFromHex(match[2] + '' + match[2]), |
| b: parseIntFromHex(match[3] + '' + match[3]), |
| format: named ? "name" : "hex" |
| }; |
| } |
| |
| return false; |
| } |
| |
| function validateWCAG2Parms(parms) { |
| // return valid WCAG2 parms for isReadable. |
| // If input parms are invalid, return {"level":"AA", "size":"small"} |
| var level, size; |
| parms = parms || {"level":"AA", "size":"small"}; |
| level = (parms.level || "AA").toUpperCase(); |
| size = (parms.size || "small").toLowerCase(); |
| if (level !== "AA" && level !== "AAA") { |
| level = "AA"; |
| } |
| if (size !== "small" && size !== "large") { |
| size = "small"; |
| } |
| return {"level":level, "size":size}; |
| } |
| |
| this.tinycolor = tinycolor; |
| |
| })()`; |
| } |
| // It is hacky way to make this function will be compiled preferentially by less |
| // resolve error: `ReferenceError: colorPalette is not defined` |
| // https://github.com/ant-design/ant-motion/issues/44 |
| .tinyColorMixin(); |
| |
| // We create a very complex algorithm which take the place of original tint/shade color system |
| // to make sure no one can understand it 👻 |
| // and create an entire color palette magicly by inputing just a single primary color. |
| // We are using bezier-curve easing function and some color manipulations like tint/shade/darken/spin |
| .colorPaletteMixin() { |
| @functions: ~`(function() { |
| var hueStep = 2; |
| var saturationStep = 16; |
| var saturationStep2 = 5; |
| var brightnessStep1 = 5; |
| var brightnessStep2 = 15; |
| var lightColorCount = 5; |
| var darkColorCount = 4; |
| |
| var getHue = function(hsv, i, isLight) { |
| var hue; |
| if (hsv.h >= 60 && hsv.h <= 240) { |
| hue = isLight ? hsv.h - hueStep * i : hsv.h + hueStep * i; |
| } else { |
| hue = isLight ? hsv.h + hueStep * i : hsv.h - hueStep * i; |
| } |
| if (hue < 0) { |
| hue += 360; |
| } else if (hue >= 360) { |
| hue -= 360; |
| } |
| return Math.round(hue); |
| }; |
| var getSaturation = function(hsv, i, isLight) { |
| var saturation; |
| if (isLight) { |
| saturation = Math.round(hsv.s * 100) - saturationStep * i; |
| } else if (i == darkColorCount) { |
| saturation = Math.round(hsv.s * 100) + saturationStep; |
| } else { |
| saturation = Math.round(hsv.s * 100) + saturationStep2 * i; |
| } |
| if (saturation > 100) { |
| saturation = 100; |
| } |
| if (isLight && i === lightColorCount && saturation > 10) { |
| saturation = 10; |
| } |
| if (saturation < 6) { |
| saturation = 6; |
| } |
| return Math.round(saturation); |
| }; |
| var getValue = function(hsv, i, isLight) { |
| if (isLight) { |
| return Math.round(hsv.v * 100) + brightnessStep1 * i; |
| } |
| return Math.round(hsv.v * 100) - brightnessStep2 * i; |
| }; |
| |
| this.colorPalette = function(color, index) { |
| var isLight = index <= 6; |
| var hsv = tinycolor(color).toHsv(); |
| var i = isLight ? lightColorCount + 1 - index : index - lightColorCount - 1; |
| return tinycolor({ |
| h: getHue(hsv, i, isLight), |
| s: getSaturation(hsv, i, isLight), |
| v: getValue(hsv, i, isLight), |
| }).toHexString(); |
| }; |
| })()`; |
| } |
| // It is hacky way to make this function will be compiled preferentially by less |
| // resolve error: `ReferenceError: colorPalette is not defined` |
| // https://github.com/ant-design/ant-motion/issues/44 |
| .colorPaletteMixin(); |