public enum PMKPageMenuControllerStyle: Int {
  case Plain   = 1 // NewsPass  [https://itunes.apple.com/jp/app/id1106788059]
  case Tab     = 2 // Gunosy    [https://itunes.apple.com/jp/app/id590384791]
  case Smart   = 3 // SmartNews [https://itunes.apple.com/jp/app/id579581125]
  case Hacka   = 4 // Hackadoll [https://itunes.apple.com/jp/app/id888231424]
  case Web     = 5 // JCNews    [https://jcnews.tokyo/)
  case Ellipse = 6 // JCNews    [https://itunes.apple.com/jp/app/id1024341813]
  case Suite   = 7 // NewsSuite [https://itunes.apple.com/jp/app/id1176431318]
  case NetLab  = 8 // NLab      [https://itunes.apple.com/jp/app/id949325541]
  case NHK     = 9 // NHK NEWS  [https://itunes.apple.com/jp/app/id1121104608]
}

public init(controllers: [UIViewController],
              menuStyle: PMKPageMenuControllerStyle,
             menuColors: [UIColor],
           topBarHeight: CGFloat)

class RootViewController: BaseViewController
{
  var pageMenuController: PMKPageMenuController? = nil

  override func viewDidLoad() {
    super.viewDidLoad()

    var controllers: [UIViewController] = []
    let dateFormatter = DateFormatter()
    for month in dateFormatter.monthSymbols {
      let viewController: DataViewController = DataViewController()
      viewController.title = month
      controllers.append(viewController)
    }

    let statusBarHeight: CGFloat = UIApplication.shared.statusBarFrame.size.height
    pageMenuController = PMKPageMenuController(controllers: controllers, menuStyle: .Smart, menuColors: [], topBarHeight: statusBarHeight)
    self.addChildViewController(pageMenuController!)
    self.view.addSubview(pageMenuController!.view)
    pageMenuController?.didMove(toParentViewController: self)
  }

}

public protocol PMKPageMenuControllerDelegate: class
{
  // ページ画面上でスワイプ操作による切り替えが行われる前に呼び出される
  func pageMenuController(_ pageMenuController: PMKPageMenuController, willMoveTo viewController: UIViewController, at menuIndex: Int)
  // ページの切り替えが完了した際に呼び出される
  func pageMenuController(_ pageMenuController: PMKPageMenuController, didMoveTo viewController: UIViewController, at menuIndex: Int)

  // メニュー項目の作成などが完了した際に呼び出される
  func pageMenuController(_ pageMenuController: PMKPageMenuController, didPrepare menuItems: [PMKPageMenuItem])
  // メニューがタップされた際に呼び出される
  func pageMenuController(_ pageMenuController: PMKPageMenuController, didSelect menuItem: PMKPageMenuItem, at menuIndex: Int)
}

public enum PMKPageMenuControllerStyle: Int {
  case Plain   = 1 // NewsPass  [https://itunes.apple.com/jp/app/id1106788059]
  case Tab     = 2 // Gunosy    [https://itunes.apple.com/jp/app/id590384791]
  case Smart   = 3 // SmartNews [https://itunes.apple.com/jp/app/id579581125]
  case Hacka   = 4 // Hackadoll [https://itunes.apple.com/jp/app/id888231424]
  case Web     = 5 // JCNews    [https://jcnews.tokyo/)
  case Ellipse = 6 // JCNews    [https://itunes.apple.com/jp/app/id1024341813]
  case Suite   = 7 // NewsSuite [https://itunes.apple.com/jp/app/id1176431318]
  case NetLab  = 8 // NLab      [https://itunes.apple.com/jp/app/id949325541]
  case NHK     = 9 // NHK NEWS  [https://itunes.apple.com/jp/app/id1121104608]
  case Custom  = 999 // あらたに作成するメニュー （必須!!!）

  func className() -> String {
    switch self {
      case .Plain:   return "PMKPageMenuItemPlain"
      case .Tab:     return "PMKPageMenuItemTab"
      case .Smart:   return "PMKPageMenuItemSmart"
      case .Hacka:   return "PMKPageMenuItemHacka"
      case .Web:     return "PMKPageMenuItemWeb"
      case .Ellipse: return "PMKPageMenuItemEllipse"
      case .Suite:   return "PMKPageMenuItemSuite"
      case .NetLab:  return "PMKPageMenuItemNetLab"
      case .NHK:     return "PMKPageMenuItemNHK"
      case .Custom:  return "PMKPageMenuItemCustom" // あらたに作成するクラス名 （必須!!!）
    }
  }

}

public class PMKPageMenuItemCustom: PMKPageMenuItem {
  public required init(coder  aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
  }

  public override init(frame: CGRect, title: String, design: PMKPageMenuItemDesign) {
    super.init(frame: frame, title: title, design: design)

    self.style = .Custom // 自作メニューのスタイル名を指定

    self.titleColor = design.titleColor
  }

  override func render(active: Bool) {
    if (active) {
      self.label?.textColor = self.design?.titleColor
    }
    else {
      self.label?.textColor = .darkGray
    }
    self.label?.backgroundColor = .clear
  }
}

func prepareForMenuStyle(_ menuStyle: PMKPageMenuControllerStyle) {
  switch (menuStyle) {
    case .Plain:
      self.itemMargin = kMenuItemMargin
      self.separatorHeight = 1.0
      self.indicatorHeight = 3.0
      break
    ...
    case .Custom:
      self.itemMargin = 0.0
      self.separatorHeight = 0.0
      self.indicatorHeight = 2.0
  }
}

func prepareForMenuSeparator() {
  if var menuColor: UIColor = self.menuColors.first {
    ...

    switch (menuStyle) {
      case .Plain, .Web:
        menuColor = .orange
      case .Hacka:
        menuColor = UIColor.hexColor(kHackaHexColor)
      case .Custom:
        menuColor = .purple
      default: break
    }
    ...
  }
}

func prepareForMenuIndicator() {
  ...
  var color: UIColor? = self.menuColors.first
  switch (menuStyle) {
    case .Plain:
      color = .orange
    ...
      case .Custom:
        color = .purple
    default:
      break
  }
  ...
}

func prepareForMenuItems() {
  self.menuItems = []

  ...
  let count: Int = self.titles.count
  for i in 0 ..< count {
    let frame: CGRect = CGRect(x: x, y: y, width: w, height: h)
    let title: String = self.titles[i]
    let color: UIColor = .clear
    if self.menuColors.count == 0 { // 色指定がない場合はデフォルト色を使用
      switch (menuStyle) {
        case .Plain:
          color = .orange
        case .Hacka:
          color = UIColor.hexColor(kHackaHexColor)
        ...
        case .Custom:
            color = .purple
        default:
          color = self.menuColor(at: i)
      }
    }
    else {
      ...
    }
    ...
  }
  ...
}