Colours.swift · 小萝莉科技/Colours - Gitee.com

来自 : gitee.com/xiaoluolitec/Colours 发布时间：2021-03-25

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// // Colours.swift // ColoursDemo // // Created by Ben Gordon on 12/27/14. // Copyright (c) 2014 Ben Gordon. All rights reserved. // import Foundation #if os(iOS) || os(tvOS) import UIKit public typealias Color = UIColor #else import AppKit public typealias Color = NSColor #endif public extension Color { // MARK: - Closure typealias TransformBlock = (CGFloat) - CGFloat // MARK: - Enums enum ColorScheme:Int { case analagous = 0, monochromatic, triad, complementary } enum ColorFormulation:Int { case rgba = 0, hsba, lab, cmyk } enum ColorDistance:Int { case cie76 = 0, cie94, cie2000 } enum ColorComparison:Int { case darkness = 0, lightness, desaturated, saturated, red, green, blue } // MARK: - Color from Hex/RGBA/HSBA/CIE_LAB/CMYK convenience init(hex: String) { var rgbInt: UInt64 = 0 let newHex = hex.replacingOccurrences(of: \"#\", with: \"\") let scanner = Scanner(string: newHex) scanner.scanHexInt64( rgbInt) let r: CGFloat = CGFloat((rgbInt 0xFF0000) 16)/255.0 let g: CGFloat = CGFloat((rgbInt 0x00FF00) 8)/255.0 let b: CGFloat = CGFloat(rgbInt 0x0000FF)/255.0 self.init(red: r, green: g, blue: b, alpha: 1.0) } convenience init(rgba: (r: CGFloat, g: CGFloat, b: CGFloat, a: CGFloat)) { self.init(red: rgba.r, green: rgba.g, blue: rgba.b, alpha: rgba.a) } convenience init(hsba: (h: CGFloat, s: CGFloat, b: CGFloat, a: CGFloat)) { self.init(hue: hsba.h, saturation: hsba.s, brightness: hsba.b, alpha: hsba.a) } convenience init(CIE_LAB: (l: CGFloat, a: CGFloat, b: CGFloat, alpha: CGFloat)) { // Set Up var Y = (CIE_LAB.l + 16.0)/116.0 var X = CIE_LAB.a/500 + Y var Z = Y - CIE_LAB.b/200 // Transform XYZ let deltaXYZ: TransformBlock = { k in return (pow(k, 3.0) 0.008856) ? pow(k, 3.0) : (k - 4/29.0)/7.787 } X = deltaXYZ(X)*0.95047 Y = deltaXYZ(Y)*1.000 Z = deltaXYZ(Z)*1.08883 // Convert XYZ to RGB let R = X*3.2406 + (Y * -1.5372) + (Z * -0.4986) let G = (X * -0.9689) + Y*1.8758 + Z*0.0415 let B = X*0.0557 + (Y * -0.2040) + Z*1.0570 let deltaRGB: TransformBlock = { k in return (k 0.0031308) ? 1.055 * (pow(k, (1/2.4))) - 0.055 : k * 12.92 } self.init(rgba: (deltaRGB(R), deltaRGB(G), deltaRGB(B), CIE_LAB.alpha)) } convenience init(cmyk: (c: CGFloat, m: CGFloat, y: CGFloat, k: CGFloat)) { let cmyTransform: TransformBlock = { x in return x * (1 - cmyk.k) + cmyk.k } let C = cmyTransform(cmyk.c) let M = cmyTransform(cmyk.m) let Y = cmyTransform(cmyk.y) self.init(rgba: (1 - C, 1 - M, 1 - Y, 1.0)) } // MARK: - Color to Hex/RGBA/HSBA/CIE_LAB/CMYK func hexString() - String { let rgbaT = rgba() let r: Int = Int(rgbaT.r * 255) let g: Int = Int(rgbaT.g * 255) let b: Int = Int(rgbaT.b * 255) let red = NSString(format: \"%02x\", r) let green = NSString(format: \"%02x\", g) let blue = NSString(format: \"%02x\", b) return \"#\\(red)\\(green)\\(blue)\" } func rgba() - (r: CGFloat, g: CGFloat, b: CGFloat, a: CGFloat) { let components = self.cgColor.components let numberOfComponents = self.cgColor.numberOfComponents switch numberOfComponents { case 4: return (components![0], components![1], components![2], components![3]) case 2: return (components![0], components![0], components![0], components![1]) default: // FIXME: Fallback to black return (0, 0, 0, 1) } } func hsba() - (h: CGFloat, s: CGFloat, b: CGFloat, a: CGFloat) { var h: CGFloat = 0 var s: CGFloat = 0 var b: CGFloat = 0 var a: CGFloat = 0 if self.responds(to: #selector(UIColor.getHue(_:saturation:brightness:alpha:))) self.cgColor.numberOfComponents == 4 { self.getHue( h, saturation: s, brightness: b, alpha: a) } return (h, s, b, a) } func CIE_LAB() - (l: CGFloat, a: CGFloat, b: CGFloat, alpha: CGFloat) { // Get XYZ let xyzT = xyz() let x = xyzT.x/95.047 let y = xyzT.y/100.000 let z = xyzT.z/108.883 // Transfrom XYZ to L*a*b let deltaF: TransformBlock = { f in if f pow((6.0/29.0), 3.0) { return pow(f, 1.0/3.0) } let expressionA: CGFloat = (1/3) let expressionB: CGFloat = pow((29.0/6.0), 2.0) let expressionC: CGFloat = 4/29.0 return expressionA * expressionB * f + expressionC } let X = deltaF(x) let Y = deltaF(y) let Z = deltaF(z) let L = 116*Y - 16 let a = 500 * (X - Y) let b = 200 * (Y - Z) return (L, a, b, xyzT.alpha) } func xyz() - (x: CGFloat, y: CGFloat, z: CGFloat, alpha: CGFloat) { // Get RGBA values let rgbaT = rgba() // Transfrom values to XYZ let deltaR: TransformBlock = { R in return (R 0.04045) ? pow((R + 0.055)/1.055, 2.40) : (R/12.92) } let R = deltaR(rgbaT.r) let G = deltaR(rgbaT.g) let B = deltaR(rgbaT.b) let X = (R*41.24 + G*35.76 + B*18.05) let Y = (R*21.26 + G*71.52 + B*7.22) let Z = (R*1.93 + G*11.92 + B*95.05) return (X, Y, Z, rgbaT.a) } func cmyk() - (c: CGFloat, m: CGFloat, y: CGFloat, k: CGFloat) { // Convert RGB to CMY let rgbaT = rgba() let C = 1 - rgbaT.r let M = 1 - rgbaT.g let Y = 1 - rgbaT.b // Find K let K = min(1, min(C, min(Y, M))) if (K == 1) { return (0, 0, 0, 1) } // Convert cmyk let newCMYK: TransformBlock = { x in return (x - K)/(1 - K) } return (newCMYK(C), newCMYK(M), newCMYK(Y), K) } // MARK: - Color Components func red() - CGFloat { return rgba().r } func green() - CGFloat { return rgba().g } func blue() - CGFloat { return rgba().b } func alpha() - CGFloat { return rgba().a } func hue() - CGFloat { return hsba().h } func saturation() - CGFloat { return hsba().s } func brightness() - CGFloat { return hsba().b } func CIE_Lightness() - CGFloat { return CIE_LAB().l } func CIE_a() - CGFloat { return CIE_LAB().a } func CIE_b() - CGFloat { return CIE_LAB().b } func cyan() - CGFloat { return cmyk().c } func magenta() - CGFloat { return cmyk().m } func yellow() - CGFloat { return cmyk().y } func keyBlack() - CGFloat { return cmyk().k } // MARK: - Lighten/Darken Color func lightenedColor(_ percentage: CGFloat) - Color { return modifiedColor(percentage + 1.0) } func darkenedColor(_ percentage: CGFloat) - Color { return modifiedColor(1.0 - percentage) } fileprivate func modifiedColor(_ percentage: CGFloat) - Color { let hsbaT = hsba() return Color(hsba: (hsbaT.h, hsbaT.s, hsbaT.b * percentage, hsbaT.a)) } // MARK: - Contrasting Color func blackOrWhiteContrastingColor() - Color { let rgbaT = rgba() let value = 1 - ((0.299 * rgbaT.r) + (0.587 * rgbaT.g) + (0.114 * rgbaT.b)); return value 0.5 ? Color.black : Color.white } // MARK: - Complementary Color func complementaryColor() - Color { let hsbaT = hsba() let newH = Color.addDegree(180.0, staticDegree: hsbaT.h*360.0) return Color(hsba: (newH, hsbaT.s, hsbaT.b, hsbaT.a)) } // MARK: - Color Scheme func colorScheme(_ type: ColorScheme) - [Color] { switch (type) { case .analagous: return Color.analgousColors(self.hsba()) case .monochromatic: return Color.monochromaticColors(self.hsba()) case .triad: return Color.triadColors(self.hsba()) default: return Color.complementaryColors(self.hsba()) } } fileprivate class func analgousColors(_ hsbaT: (h: CGFloat, s: CGFloat, b: CGFloat, a: CGFloat)) - [Color] { return [Color(hsba: (self.addDegree(30, staticDegree: hsbaT.h*360)/360.0, hsbaT.s-0.05, hsbaT.b-0.1, hsbaT.a)), Color(hsba: (self.addDegree(15, staticDegree: hsbaT.h*360)/360.0, hsbaT.s-0.05, hsbaT.b-0.05, hsbaT.a)), Color(hsba: (self.addDegree(-15, staticDegree: hsbaT.h*360)/360.0, hsbaT.s-0.05, hsbaT.b-0.05, hsbaT.a)), Color(hsba: (self.addDegree(-30, staticDegree: hsbaT.h*360)/360.0, hsbaT.s-0.05, hsbaT.b-0.1, hsbaT.a))] } fileprivate class func monochromaticColors(_ hsbaT: (h: CGFloat, s: CGFloat, b: CGFloat, a: CGFloat)) - [Color] { return [Color(hsba: (hsbaT.h, hsbaT.s/2, hsbaT.b/3, hsbaT.a)), Color(hsba: (hsbaT.h, hsbaT.s, hsbaT.b/2, hsbaT.a)), Color(hsba: (hsbaT.h, hsbaT.s/3, 2*hsbaT.b/3, hsbaT.a)), Color(hsba: (hsbaT.h, hsbaT.s, 4*hsbaT.b/5, hsbaT.a))] } fileprivate class func triadColors(_ hsbaT: (h: CGFloat, s: CGFloat, b: CGFloat, a: CGFloat)) - [Color] { return [Color(hsba: (self.addDegree(120, staticDegree: hsbaT.h*360)/360.0, 2*hsbaT.s/3, hsbaT.b-0.05, hsbaT.a)), Color(hsba: (self.addDegree(120, staticDegree: hsbaT.h*360)/360.0, hsbaT.s, hsbaT.b, hsbaT.a)), Color(hsba: (self.addDegree(240, staticDegree: hsbaT.h*360)/360.0, hsbaT.s, hsbaT.b, hsbaT.a)), Color(hsba: (self.addDegree(240, staticDegree: hsbaT.h*360)/360.0, 2*hsbaT.s/3, hsbaT.b-0.05, hsbaT.a))] } fileprivate class func complementaryColors(_ hsbaT: (h: CGFloat, s: CGFloat, b: CGFloat, a: CGFloat)) - [Color] { return [Color(hsba: (hsbaT.h, hsbaT.s, 4*hsbaT.b/5, hsbaT.a)), Color(hsba: (hsbaT.h, 5*hsbaT.s/7, hsbaT.b, hsbaT.a)), Color(hsba: (self.addDegree(180, staticDegree: hsbaT.h*360)/360.0, hsbaT.s, hsbaT.b, hsbaT.a)), Color(hsba: (self.addDegree(180, staticDegree: hsbaT.h*360)/360.0, 5*hsbaT.s/7, hsbaT.b, hsbaT.a))] } // MARK: - Predefined Colors // MARK: - // MARK: System Colors class func infoBlueColor() - Color { return self.colorWith(47, G:112, B:225, A:1.0) } class func successColor() - Color { return self.colorWith(83, G:215, B:106, A:1.0) } class func warningColor() - Color { return self.colorWith(221, G:170, B:59, A:1.0) } class func dangerColor() - Color { return self.colorWith(229, G:0, B:15, A:1.0) } // MARK: Whites class func antiqueWhiteColor() - Color { return self.colorWith(250, G:235, B:215, A:1.0) } class func oldLaceColor() - Color { return self.colorWith(253, G:245, B:230, A:1.0) } class func ivoryColor() - Color { return self.colorWith(255, G:255, B:240, A:1.0) } class func seashellColor() - Color { return self.colorWith(255, G:245, B:238, A:1.0) } class func ghostWhiteColor() - Color { return self.colorWith(248, G:248, B:255, A:1.0) } class func snowColor() - Color { return self.colorWith(255, G:250, B:250, A:1.0) } class func linenColor() - Color { return self.colorWith(250, G:240, B:230, A:1.0) } // MARK: Grays class func black25PercentColor() - Color { return Color(white:0.25, alpha:1.0) } class func black50PercentColor() - Color { return Color(white:0.5, alpha:1.0) } class func black75PercentColor() - Color { return Color(white:0.75, alpha:1.0) } class func warmGrayColor() - Color { return self.colorWith(133, G:117, B:112, A:1.0) } class func coolGrayColor() - Color { return self.colorWith(118, G:122, B:133, A:1.0) } class func charcoalColor() - Color { return self.colorWith(34, G:34, B:34, A:1.0) } // MARK: Blues class func tealColor() - Color { return self.colorWith(28, G:160, B:170, A:1.0) } class func steelBlueColor() - Color { return self.colorWith(103, G:153, B:170, A:1.0) } class func robinEggColor() - Color { return self.colorWith(141, G:218, B:247, A:1.0) } class func pastelBlueColor() - Color { return self.colorWith(99, G:161, B:247, A:1.0) } class func turquoiseColor() - Color { return self.colorWith(112, G:219, B:219, A:1.0) } class func skyBlueColor() - Color { return self.colorWith(0, G:178, B:238, A:1.0) } class func indigoColor() - Color { return self.colorWith(13, G:79, B:139, A:1.0) } class func denimColor() - Color { return self.colorWith(67, G:114, B:170, A:1.0) } class func blueberryColor() - Color { return self.colorWith(89, G:113, B:173, A:1.0) } class func cornflowerColor() - Color { return self.colorWith(100, G:149, B:237, A:1.0) } class func babyBlueColor() - Color { return self.colorWith(190, G:220, B:230, A:1.0) } class func midnightBlueColor() - Color { return self.colorWith(13, G:26, B:35, A:1.0) } class func fadedBlueColor() - Color { return self.colorWith(23, G:137, B:155, A:1.0) } class func icebergColor() - Color { return self.colorWith(200, G:213, B:219, A:1.0) } class func waveColor() - Color { return self.colorWith(102, G:169, B:251, A:1.0) } // MARK: Greens class func emeraldColor() - Color { return self.colorWith(1, G:152, B:117, A:1.0) } class func grassColor() - Color { return self.colorWith(99, G:214, B:74, A:1.0) } class func pastelGreenColor() - Color { return self.colorWith(126, G:242, B:124, A:1.0) } class func seafoamColor() - Color { return self.colorWith(77, G:226, B:140, A:1.0) } class func paleGreenColor() - Color { return self.colorWith(176, G:226, B:172, A:1.0) } class func cactusGreenColor() - Color { return self.colorWith(99, G:111, B:87, A:1.0) } class func chartreuseColor() - Color { return self.colorWith(69, G:139, B:0, A:1.0) } class func hollyGreenColor() - Color { return self.colorWith(32, G:87, B:14, A:1.0) } class func oliveColor() - Color { return self.colorWith(91, G:114, B:34, A:1.0) } class func oliveDrabColor() - Color { return self.colorWith(107, G:142, B:35, A:1.0) } class func moneyGreenColor() - Color { return self.colorWith(134, G:198, B:124, A:1.0) } class func honeydewColor() - Color { return self.colorWith(216, G:255, B:231, A:1.0) } class func limeColor() - Color { return self.colorWith(56, G:237, B:56, A:1.0) } class func cardTableColor() - Color { return self.colorWith(87, G:121, B:107, A:1.0) } // MARK: Reds class func salmonColor() - Color { return self.colorWith(233, G:87, B:95, A:1.0) } class func brickRedColor() - Color { return self.colorWith(151, G:27, B:16, A:1.0) } class func easterPinkColor() - Color { return self.colorWith(241, G:167, B:162, A:1.0) } class func grapefruitColor() - Color { return self.colorWith(228, G:31, B:54, A:1.0) } class func pinkColor() - Color { return self.colorWith(255, G:95, B:154, A:1.0) } class func indianRedColor() - Color { return self.colorWith(205, G:92, B:92, A:1.0) } class func strawberryColor() - Color { return self.colorWith(190, G:38, B:37, A:1.0) } class func coralColor() - Color { return self.colorWith(240, G:128, B:128, A:1.0) } class func maroonColor() - Color { return self.colorWith(80, G:4, B:28, A:1.0) } class func watermelonColor() - Color { return self.colorWith(242, G:71, B:63, A:1.0) } class func tomatoColor() - Color { return self.colorWith(255, G:99, B:71, A:1.0) } class func pinkLipstickColor() - Color { return self.colorWith(255, G:105, B:180, A:1.0) } class func paleRoseColor() - Color { return self.colorWith(255, G:228, B:225, A:1.0) } class func crimsonColor() - Color { return self.colorWith(187, G:18, B:36, A:1.0) } // MARK: Purples class func eggplantColor() - Color { return self.colorWith(105, G:5, B:98, A:1.0) } class func pastelPurpleColor() - Color { return self.colorWith(207, G:100, B:235, A:1.0) } class func palePurpleColor() - Color { return self.colorWith(229, G:180, B:235, A:1.0) } class func coolPurpleColor() - Color { return self.colorWith(140, G:93, B:228, A:1.0) } class func violetColor() - Color { return self.colorWith(191, G:95, B:255, A:1.0) } class func plumColor() - Color { return self.colorWith(139, G:102, B:139, A:1.0) } class func lavenderColor() - Color { return self.colorWith(204, G:153, B:204, A:1.0) } class func raspberryColor() - Color { return self.colorWith(135, G:38, B:87, A:1.0) } class func fuschiaColor() - Color { return self.colorWith(255, G:20, B:147, A:1.0) } class func grapeColor() - Color { return self.colorWith(54, G:11, B:88, A:1.0) } class func periwinkleColor() - Color { return self.colorWith(135, G:159, B:237, A:1.0) } class func orchidColor() - Color { return self.colorWith(218, G:112, B:214, A:1.0) } // MARK: Yellows class func goldenrodColor() - Color { return self.colorWith(215, G:170, B:51, A:1.0) } class func yellowGreenColor() - Color { return self.colorWith(192, G:242, B:39, A:1.0) } class func bananaColor() - Color { return self.colorWith(229, G:227, B:58, A:1.0) } class func mustardColor() - Color { return self.colorWith(205, G:171, B:45, A:1.0) } class func buttermilkColor() - Color { return self.colorWith(254, G:241, B:181, A:1.0) } class func goldColor() - Color { return self.colorWith(139, G:117, B:18, A:1.0) } class func creamColor() - Color { return self.colorWith(240, G:226, B:187, A:1.0) } class func lightCreamColor() - Color { return self.colorWith(240, G:238, B:215, A:1.0) } class func wheatColor() - Color { return self.colorWith(240, G:238, B:215, A:1.0) } class func beigeColor() - Color { return self.colorWith(245, G:245, B:220, A:1.0) } // MARK: Oranges class func peachColor() - Color { return self.colorWith(242, G:187, B:97, A:1.0) } class func burntOrangeColor() - Color { return self.colorWith(184, G:102, B:37, A:1.0) } class func pastelOrangeColor() - Color { return self.colorWith(248, G:197, B:143, A:1.0) } class func cantaloupeColor() - Color { return self.colorWith(250, G:154, B:79, A:1.0) } class func carrotColor() - Color { return self.colorWith(237, G:145, B:33, A:1.0) } class func mandarinColor() - Color { return self.colorWith(247, G:145, B:55, A:1.0) } // MARK: Browns class func chiliPowderColor() - Color { return self.colorWith(199, G:63, B:23, A:1.0) } class func burntSiennaColor() - Color { return self.colorWith(138, G:54, B:15, A:1.0) } class func chocolateColor() - Color { return self.colorWith(94, G:38, B:5, A:1.0) } class func coffeeColor() - Color { return self.colorWith(141, G:60, B:15, A:1.0) } class func cinnamonColor() - Color { return self.colorWith(123, G:63, B:9, A:1.0) } class func almondColor() - Color { return self.colorWith(196, G:142, B:72, A:1.0) } class func eggshellColor() - Color { return self.colorWith(252, G:230, B:201, A:1.0) } class func sandColor() - Color { return self.colorWith(222, G:182, B:151, A:1.0) } class func mudColor() - Color { return self.colorWith(70, G:45, B:29, A:1.0) } class func siennaColor() - Color { return self.colorWith(160, G:82, B:45, A:1.0) } class func dustColor() - Color { return self.colorWith(236, G:214, B:197, A:1.0) } // MARK: - Private Helpers fileprivate class func colorWith(_ R: CGFloat, G: CGFloat, B: CGFloat, A: CGFloat) - Color { return Color(rgba: (R/255.0, G/255.0, B/255.0, A)) } fileprivate class func addDegree(_ addDegree: CGFloat, staticDegree: CGFloat) - CGFloat { let s = staticDegree + addDegree; if (s 360) { return s - 360; } else if (s 0) { return -1 * s; } else { return s; } } }