MessageKit/Sources/Models/HorizontalEdgeInsets.swift

// MIT License
//
// Copyright (c) 2017-2019 MessageKit
//
// 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 Foundation
import UIKit

// MARK: - HorizontalEdgeInsets

/// A variant of `UIEdgeInsets` that only has horizontal inset properties
public struct HorizontalEdgeInsets: Equatable {
  public var left: CGFloat
  public var right: CGFloat

  public init(left: CGFloat, right: CGFloat) {
    self.left = left
    self.right = right
  }

  public static var zero: HorizontalEdgeInsets {
    HorizontalEdgeInsets(left: 0, right: 0)
  }
}

// MARK: Equatable Conformance

extension HorizontalEdgeInsets {
  public static func == (lhs: HorizontalEdgeInsets, rhs: HorizontalEdgeInsets) -> Bool {
    lhs.left == rhs.left && lhs.right == rhs.right
  }
}

extension HorizontalEdgeInsets {
  internal var horizontal: CGFloat {
    left + right
  }
}