78 lines
2.4 KiB
Swift
78 lines
2.4 KiB
Swift
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//
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// SnapKit
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//
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// Copyright (c) 2011-Present SnapKit Team - https://github.com/SnapKit
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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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#if os(iOS) || os(tvOS)
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import UIKit
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#else
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import AppKit
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#endif
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public struct ConstraintPriority : ExpressibleByFloatLiteral, Equatable, Strideable {
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public typealias FloatLiteralType = Float
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public let value: Float
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public init(floatLiteral value: Float) {
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self.value = value
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}
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public init(_ value: Float) {
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self.value = value
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}
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public static var required: ConstraintPriority {
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return 1000.0
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}
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public static var high: ConstraintPriority {
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return 750.0
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}
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public static var medium: ConstraintPriority {
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#if os(OSX)
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return 501.0
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#else
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return 500.0
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#endif
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}
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public static var low: ConstraintPriority {
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return 250.0
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}
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public static func ==(lhs: ConstraintPriority, rhs: ConstraintPriority) -> Bool {
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return lhs.value == rhs.value
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}
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// MARK: Strideable
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public func advanced(by n: FloatLiteralType) -> ConstraintPriority {
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return ConstraintPriority(floatLiteral: value + n)
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}
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public func distance(to other: ConstraintPriority) -> FloatLiteralType {
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return other.value - value
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}
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}
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