89 lines
2.5 KiB
Swift
89 lines
2.5 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: HSB Color Space
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extension DynamicColor {
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// MARK: - Getting the HSB Components
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/**
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Returns the HSB (hue, saturation, brightness) components.
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- returns: The HSB components as a tuple (h, s, b).
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*/
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public final func toHSBComponents() -> (h: CGFloat, s: CGFloat, b: CGFloat) {
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var h: CGFloat = 0
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var s: CGFloat = 0
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var b: CGFloat = 0
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#if os(iOS) || os(tvOS) || os(watchOS)
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getHue(&h, saturation: &s, brightness: &b, alpha: nil)
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return (h: h, s: s, b: b)
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#elseif os(OSX)
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if isEqual(DynamicColor.black) {
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return (0, 0, 0)
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}
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else if isEqual(DynamicColor.white) {
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return (0, 0, 1)
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}
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getHue(&h, saturation: &s, brightness: &b, alpha: nil)
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return (h: h, s: s, b: b)
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#endif
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}
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#if os(iOS) || os(tvOS) || os(watchOS)
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/**
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The hue component as CGFloat between 0.0 to 1.0.
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*/
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public final var hueComponent: CGFloat {
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return toHSBComponents().h
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}
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/**
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The saturation component as CGFloat between 0.0 to 1.0.
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*/
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public final var saturationComponent: CGFloat {
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return toHSBComponents().s
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}
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/**
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The brightness component as CGFloat between 0.0 to 1.0.
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*/
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public final var brightnessComponent: CGFloat {
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return toHSBComponents().b
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}
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#endif
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}
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