mirror of https://github.com/SnapKit/SnapKit
107 lines
2.9 KiB
Swift
107 lines
2.9 KiB
Swift
//
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// CompositeConstraint.swift
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// Snappy
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//
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// Created by Jonas Budelmann on 25/07/14.
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// Copyright (c) 2014 Jonas Budelmann. All rights reserved.
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//
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import UIKit
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class CompositeConstraint: Constraint, ConstraintDelegate {
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var children = [Constraint]()
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weak var delegate: ConstraintDelegate?
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init(children: [Constraint]) {
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self.children = children
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for constraint in children {
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constraint.delegate = self
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}
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}
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func constraint(constraint: Constraint, shouldBeReplacedWithConstraint replacementConstraint: Constraint) {
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var index: Int?
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for (i, c) in enumerate(self.children) {
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if (c === constraint) {
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index = i
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}
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}
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if (index) {
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self.children[index!] = replacementConstraint
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}
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}
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func constraint(constraint: Constraint?, addConstraintWithLayoutAttribute layoutAttribute: NSLayoutAttribute) -> Constraint {
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var newConstraint = self.delegate!.constraint(self, addConstraintWithLayoutAttribute: layoutAttribute)
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newConstraint.delegate = self
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self.children.append(newConstraint)
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return newConstraint
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}
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var left: Constraint { return addConstraint(.Left) }
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var top: Constraint { return addConstraint(.Top) }
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var right: Constraint { return addConstraint(.Right) }
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var bottom: Constraint { return addConstraint(.Bottom) }
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var leading: Constraint { return addConstraint(.Leading) }
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var trailing: Constraint { return addConstraint(.Trailing) }
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var width: Constraint { return addConstraint(.Width) }
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var height: Constraint { return addConstraint(.Height) }
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var centerX: Constraint { return addConstraint(.CenterX) }
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var centerY: Constraint { return addConstraint(.CenterY) }
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var baseline: Constraint { return addConstraint(.Baseline) }
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var and: Constraint { return self }
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var with: Constraint { return self }
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func addConstraint(NSLayoutAttribute) -> Constraint {
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return self;
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}
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func equalTo(attr: Any) -> Constraint {
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return self
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}
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func greaterThanOrEqualTo(attr: Any) -> Constraint {
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return self
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}
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func lessThanOrEqualTo(attr: Any) -> Constraint {
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return self
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}
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func insets(insets: Any) -> Constraint {
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return self
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}
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func offset(offset: Any) -> Constraint {
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return self
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}
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func multipliedBy(multiplier: Float) -> Constraint {
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return self
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}
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func dividedBy(divider: Float) -> Constraint {
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return self
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}
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func priority(priority: UILayoutPriority) -> Constraint {
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return self
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}
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func priorityLow() -> Constraint {
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return self
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}
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func priorityMedium() -> Constraint {
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return self
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}
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func priorityHigh() -> Constraint {
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return self
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}
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func install() {
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}
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} |