106 lines
3.7 KiB
Swift
106 lines
3.7 KiB
Swift
//
|
|
// Copyright (c) 2023 Touch Instinct
|
|
//
|
|
// 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.
|
|
//
|
|
|
|
import UIKit
|
|
|
|
public extension UIEdgeInsets {
|
|
|
|
// MARK: - Factory methods
|
|
|
|
static var nan: Self {
|
|
.edges(.nan)
|
|
}
|
|
|
|
static func edges(_ insets: CGFloat) -> UIEdgeInsets {
|
|
.init(top: insets, left: insets, bottom: insets, right: insets)
|
|
}
|
|
|
|
static func horizontal(_ insets: CGFloat) -> UIEdgeInsets {
|
|
.init(top: .nan, left: insets, bottom: .nan, right: insets)
|
|
}
|
|
|
|
static func vertical(_ insets: CGFloat) -> UIEdgeInsets {
|
|
.init(top: insets, left: .nan, bottom: insets, right: .nan)
|
|
}
|
|
|
|
static func horizontal(left: CGFloat = .nan, right: CGFloat = .nan) -> UIEdgeInsets {
|
|
.init(top: .nan, left: left, bottom: .nan, right: right)
|
|
}
|
|
|
|
static func vertical(top: CGFloat = .nan, bottom: CGFloat = .nan) -> UIEdgeInsets {
|
|
.init(top: top, left: .nan, bottom: bottom, right: .nan)
|
|
}
|
|
|
|
// MARK: - Instance methods
|
|
|
|
func vertical(onNan defaultValue: CGFloat = .nan) -> CGFloat {
|
|
add(\.top, to: \.bottom, of: self, onNan: defaultValue)
|
|
}
|
|
|
|
func horizontal(onNan defaultValue: CGFloat = .nan) -> CGFloat {
|
|
add(\.left, to: \.right, of: self, onNan: defaultValue)
|
|
}
|
|
|
|
func horizontal(_ insets: CGFloat) -> UIEdgeInsets {
|
|
.init(top: top, left: insets, bottom: bottom, right: insets)
|
|
}
|
|
|
|
func vertical(_ insets: CGFloat) -> UIEdgeInsets {
|
|
.init(top: insets, left: left, bottom: insets, right: right)
|
|
}
|
|
|
|
func horizontal(left: CGFloat = .nan, right: CGFloat = .nan) -> UIEdgeInsets {
|
|
.init(top: top, left: left, bottom: bottom, right: right)
|
|
}
|
|
|
|
func vertical(top: CGFloat = .nan, bottom: CGFloat = .nan) -> UIEdgeInsets {
|
|
.init(top: top, left: left, bottom: bottom, right: right)
|
|
}
|
|
|
|
func replacingNan(with defaultValue: CGFloat) -> Self {
|
|
.init(top: top.isFinite ? top : defaultValue,
|
|
left: left.isFinite ? left : defaultValue,
|
|
bottom: bottom.isFinite ? bottom : defaultValue,
|
|
right: right.isFinite ? right : defaultValue)
|
|
}
|
|
|
|
func add(_ lhsKeyPath: KeyPath<Self, CGFloat>,
|
|
to rhsKeyPath: KeyPath<Self, CGFloat>,
|
|
of rhs: Self,
|
|
onNan defaultValue: CGFloat = .nan) -> CGFloat {
|
|
|
|
let lhsValue = self[keyPath: lhsKeyPath]
|
|
let rhsValue = rhs[keyPath: rhsKeyPath]
|
|
|
|
switch (lhsValue.isFinite, rhsValue.isFinite) {
|
|
case (true, true):
|
|
return lhsValue + rhsValue
|
|
case (true, false):
|
|
return lhsValue
|
|
case (false, true):
|
|
return rhsValue
|
|
case (false, false):
|
|
return defaultValue
|
|
}
|
|
}
|
|
}
|