KCD/SuppliesView.swift

   1 //
   2 //  SuppliesView.swift
   3 //  KCD
   4 //
   5 //  Created by Hori,Masaki on 2017/01/02.
   6 //  Copyright © 2017年 Hori,Masaki. All rights reserved.
   7 //
   8
   9 import Cocoa
  10
  11 fileprivate var ShipStatusContext: Int = 0
  12
  13 class SuppliesView: NSControl {
  14     private let observeKeys = ["fuel", "maxFuel", "bull", "maxBull"]
  15     private let suppliesCell: SuppliesCell
  16
  17     override init(frame: NSRect) {
  18         suppliesCell = SuppliesCell()
  19         super.init(frame: frame)
  20         self.cell = suppliesCell
  21     }
  22     required init?(coder: NSCoder) {
  23         suppliesCell = SuppliesCell()
  24         super.init(coder: coder)
  25         self.cell = suppliesCell
  26     }
  27     deinit {
  28         observeKeys.forEach {
  29             suppliesCell.shipStatus?.removeObserver(self, forKeyPath: $0)
  30         }
  31     }
  32
  33     var shipStatus: KCShipObject? {
  34         get {
  35             return suppliesCell.shipStatus
  36         }
  37         set {
  38             observeKeys.forEach {
  39                 suppliesCell.shipStatus?.removeObserver(self, forKeyPath: $0)
  40             }
  41             suppliesCell.shipStatus = newValue
  42             observeKeys.forEach {
  43                 suppliesCell.shipStatus?.addObserver(self, forKeyPath: $0, context: &ShipStatusContext)
  44             }
  45             needsDisplay = true
  46         }
  47     }
  48
  49     override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey: Any]?, context: UnsafeMutableRawPointer?) {
  50         if context == &ShipStatusContext {
  51             needsDisplay = true
  52             return
  53         }
  54         super.observeValue(forKeyPath: keyPath, of: object, change: change, context: context)
  55     }
  56 }