66 lines
2.6 KiB
Swift
66 lines
2.6 KiB
Swift
/*
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* DynamicColor
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*
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* Copyright 2015-present Yannick Loriot.
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* http://yannickloriot.com
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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#if os(iOS) || os(tvOS) || os(watchOS)
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import UIKit
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#elseif os(OSX)
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import AppKit
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#endif
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// MARK: HSL Color Space
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extension DynamicColor {
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/**
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Initializes and returns a color object using the specified opacity and HSL component values.
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- parameter hue: The hue component of the color object, specified as a value from 0.0 to 360.0 degree.
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- parameter saturation: The saturation component of the color object, specified as a value from 0.0 to 1.0.
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- parameter lightness: The lightness component of the color object, specified as a value from 0.0 to 1.0.
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- parameter alpha: The opacity value of the color object, specified as a value from 0.0 to 1.0. Default to 1.0.
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*/
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public convenience init(hue: CGFloat, saturation: CGFloat, lightness: CGFloat, alpha: CGFloat = 1) {
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let color = HSL(hue: hue, saturation: saturation, lightness: lightness, alpha: alpha).toDynamicColor()
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let components = color.toRGBAComponents()
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self.init(red: components.r, green: components.g, blue: components.b, alpha: components.a)
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}
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// MARK: - Getting the HSL Components
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/**
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Returns the HSL (hue, saturation, lightness) components.
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Notes that the hue value is between 0.0 and 360.0 degree.
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- returns: The HSL components as a tuple (h, s, l).
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*/
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public final func toHSLComponents() -> (h: CGFloat, s: CGFloat, l: CGFloat) {
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let hsl = HSL(color: self)
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return (hsl.h * 360.0, hsl.s, hsl.l)
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}
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}
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