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69 lines
2.5 KiB
69 lines
2.5 KiB
// |
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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 class ConstraintDescription { |
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internal let item: LayoutConstraintItem |
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internal var attributes: ConstraintAttributes |
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internal var relation: ConstraintRelation? = nil |
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internal var sourceLocation: (String, UInt)? = nil |
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internal var label: String? = nil |
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internal var related: ConstraintItem? = nil |
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internal var multiplier: ConstraintMultiplierTarget = 1.0 |
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internal var constant: ConstraintConstantTarget = 0.0 |
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internal var priority: ConstraintPriorityTarget = 1000.0 |
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internal lazy var constraint: Constraint? = { |
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guard let relation = self.relation, |
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let related = self.related, |
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let sourceLocation = self.sourceLocation else { |
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return nil |
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} |
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let from = ConstraintItem(target: self.item, attributes: self.attributes) |
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return Constraint( |
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from: from, |
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to: related, |
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relation: relation, |
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sourceLocation: sourceLocation, |
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label: self.label, |
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multiplier: self.multiplier, |
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constant: self.constant, |
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priority: self.priority |
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) |
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}() |
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// MARK: Initialization |
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internal init(item: LayoutConstraintItem, attributes: ConstraintAttributes) { |
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self.item = item |
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self.attributes = attributes |
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} |
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}
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