// // SnapKit // // Copyright (c) 2011-2015 SnapKit Team - https://github.com/SnapKit // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. #if os(iOS) || os(tvOS) import UIKit #else import AppKit #endif /** Used to allow adding a snp_label to a View for debugging purposes */ public extension View { public var snp_label: String? { get { return objc_getAssociatedObject(self, &labelKey) as? String } set { objc_setAssociatedObject(self, &labelKey, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_COPY_NONATOMIC) } } } /** Used to allow adding a snp_label to a LayoutConstraint for debugging purposes */ public extension LayoutConstraint { public var snp_label: String? { get { return objc_getAssociatedObject(self, &labelKey) as? String } set { objc_setAssociatedObject(self, &labelKey, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_COPY_NONATOMIC) } } override public var description: String { var description = "<" description += descriptionForObject(self) description += " \(descriptionForObject(self.firstItem))" if self.firstAttribute != .NotAnAttribute { description += ".\(self.firstAttribute.snp_description)" } description += " \(self.relation.snp_description)" if let secondItem: AnyObject = self.secondItem { description += " \(descriptionForObject(secondItem))" } if self.secondAttribute != .NotAnAttribute { description += ".\(self.secondAttribute.snp_description)" } if self.multiplier != 1.0 { description += " * \(self.multiplier)" } if self.secondAttribute == .NotAnAttribute { description += " \(self.constant)" } else { if self.constant > 0.0 { description += " + \(self.constant)" } else if self.constant < 0.0 { description += " - \(CGFloat.abs(self.constant))" } } if self.priority != 1000.0 { description += " ^\(self.priority)" } description += ">" return description } internal var snp_makerFile: String? { return self.snp_constraint?.makerFile } internal var snp_makerLine: UInt? { return self.snp_constraint?.makerLine } } private var labelKey = "" private func descriptionForObject(object: AnyObject) -> String { let pointerDescription = NSString(format: "%p", ObjectIdentifier(object).uintValue) var desc = "" desc += object.dynamicType.description() if let object = object as? View { desc += ":\(object.snp_label ?? pointerDescription)" } else if let object = object as? LayoutConstraint { desc += ":\(object.snp_label ?? pointerDescription)" } else { desc += ":\(pointerDescription)" } if let object = object as? LayoutConstraint, let file = object.snp_makerFile, let line = object.snp_makerLine { desc += "@\(file)#\(line)" } desc += "" return desc } private extension NSLayoutRelation { private var snp_description: String { switch self { case .Equal: return "==" case .GreaterThanOrEqual: return ">=" case .LessThanOrEqual: return "<=" } } } private extension NSLayoutAttribute { private var snp_description: String { #if os(iOS) || os(tvOS) switch self { case .NotAnAttribute: return "notAnAttribute" case .Top: return "top" case .Left: return "left" case .Bottom: return "bottom" case .Right: return "right" case .Leading: return "leading" case .Trailing: return "trailing" case .Width: return "width" case .Height: return "height" case .CenterX: return "centerX" case .CenterY: return "centerY" case .Baseline: return "baseline" case .FirstBaseline: return "firstBaseline" case .TopMargin: return "topMargin" case .LeftMargin: return "leftMargin" case .BottomMargin: return "bottomMargin" case .RightMargin: return "rightMargin" case .LeadingMargin: return "leadingMargin" case .TrailingMargin: return "trailingMargin" case .CenterXWithinMargins: return "centerXWithinMargins" case .CenterYWithinMargins: return "centerYWithinMargins" } #else switch self { case .NotAnAttribute: return "notAnAttribute" case .Top: return "top" case .Left: return "left" case .Bottom: return "bottom" case .Right: return "right" case .Leading: return "leading" case .Trailing: return "trailing" case .Width: return "width" case .Height: return "height" case .CenterX: return "centerX" case .CenterY: return "centerY" case .Baseline: return "baseline" default: return "default" } #endif } }