swift - NSStackView をサブビューの全高に調整する方法

Question

次の Swift スクリプトがあります。

#!/usr/bin/env swift

import AppKit
import Foundation

let app = NSApplication.shared
app.setActivationPolicy(.regular)  // Magic to accept keyboard input and be docked!

struct DialogError: Error, LocalizedError {
  let errorDescription: String?

  init(_ description: String) {
    errorDescription = description
  }
}

struct Settings {
  var title: String
  var text: String
  var okButton: String
  var cancelButton: String

  var width: Int?
  var height: Int?
}

struct ListOptions {
  var options = [String]()
  var defaultOption = 0
  var multiple = false
}

class TableViewController: NSViewController, NSTableViewDelegate, NSTableViewDataSource {

  var initialized = false
  var frame = NSRect()
  var opts = ListOptions()
  var defaultOption = 0
  var tableView = NSTableView()

  convenience init(frame: NSRect, options: ListOptions) {
    self.init()
    self.frame = frame
    self.opts = options
    self.tableView = NSTableView(frame: frame)
    self.view = self.tableView
  }

  override func viewDidLayout() {
    if !initialized {
      initialized = true
      setupTableView()
    }
  }

  func setupTableView() {
    self.tableView.delegate = self
    self.tableView.dataSource = self
    self.tableView.headerView = nil
    self.tableView.allowsMultipleSelection = self.opts.multiple
    self.tableView.usesAutomaticRowHeights = true
    self.tableView.backgroundColor = NSColor.clear
    self.tableView.selectionHighlightStyle = NSTableView.SelectionHighlightStyle.regular
    self.tableView.selectRowIndexes(
      IndexSet(integer: self.opts.defaultOption), byExtendingSelection: false)
    //tableView!.appearance = NSAppearance(named: NSAppearance.Name.vibrantDark)

    let col = NSTableColumn(identifier: NSUserInterfaceItemIdentifier(rawValue: "col"))
    col.minWidth = 200
    tableView.addTableColumn(col)
  }

  func numberOfRows(in tableView: NSTableView) -> Int {
    return self.opts.options.count
  }

  func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int)
    -> NSView?
  {
    let text = NSTextField()
    text.stringValue = self.opts.options[row]
    text.isEditable = false
    text.drawsBackground = false
    text.isBordered = false
    let cell = NSTableCellView()
    cell.addSubview(text)

    text.translatesAutoresizingMaskIntoConstraints = false
    cell.addConstraint(
      NSLayoutConstraint(
        item: text, attribute: .centerY, relatedBy: .equal, toItem: cell,
        attribute: .centerY,
        multiplier: 1, constant: 0))
    cell.addConstraint(
      NSLayoutConstraint(
        item: text, attribute: .left, relatedBy: .equal, toItem: cell, attribute: .left,
        multiplier: 1, constant: 0))
    cell.addConstraint(
      NSLayoutConstraint(
        item: text, attribute: .right, relatedBy: .equal, toItem: cell, attribute: .right,
        multiplier: 1, constant: 0))

    return cell
  }

  func tableView(_ tableView: NSTableView, rowViewForRow row: Int) -> NSTableRowView? {
    let rowView = NSTableRowView()
    rowView.isEmphasized = true
    return rowView
  }
}

func makeDefaultAlert(_ settings: Settings, listOpts: ListOptions) -> (NSAlert, TableViewController)  {
  let a = NSAlert()
  a.messageText = settings.title
  a.alertStyle = NSAlert.Style.informational
  a.addButton(withTitle: settings.okButton)
  a.addButton(withTitle: settings.cancelButton)

  a.buttons[0].keyEquivalent = "\r"
  a.buttons[1].keyEquivalent = "\u{1b}"

  // Text as accessory view since
  // Height can not be changed
  let v = NSStackView(frame: NSRect(x: 0, y: 0, width: settings.width ?? 250, height: 350))
  // ---------------------------------------------------------------------------** This is a problem HERE. I dont know the height...

  v.orientation = NSUserInterfaceLayoutOrientation.vertical
  v.distribution = NSStackView.Distribution.equalSpacing
  v.spacing = 10

  // Text 1
  let text = NSTextField(wrappingLabelWithString: settings.text)
  text.isEditable = false
  text.drawsBackground = true
  v.addView(text, in: NSStackView.Gravity.center)

  // Text 2
  let text2 = NSTextField(wrappingLabelWithString: settings.text)
  text2.isEditable = false
  text2.drawsBackground = true
  v.addView(text2, in: NSStackView.Gravity.center)

  //Table
  let scrollView = NSScrollView(
    frame: NSRect(x: 0, y: 0, width: settings.width ?? 250, height: 100))
  scrollView.hasVerticalScroller = true
  scrollView.hasHorizontalScroller = true
  let clipView = NSClipView(frame: scrollView.bounds)
  clipView.autoresizingMask = [.width, .height]
  let con = TableViewController(frame: clipView.bounds, options: listOpts)
  con.tableView.autoresizingMask = [.width, .height]
  clipView.documentView = con.tableView
  scrollView.contentView = clipView
  v.addView(scrollView, in: NSStackView.Gravity.center)

  a.accessoryView = v

  return (a, con)
}

func runOptionsDialog() throws {

  let text = """
    Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
    et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum.
    Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
    """

  let listOpts = ListOptions(options: ["option1", "option2"], multiple: true)
  let settings = Settings(title: "Title", text: text, okButton: "Ok", cancelButton: "Cancel")

  let a = makeDefaultAlert(settings, listOpts: listOpts)
  let alert = a.0
  app.activate(ignoringOtherApps: true)
  alert.runModal()
}

try runOptionsDialog()

これを実行swift script.swiftすると、次のアラートが正常に作成されます。

スクロールは完璧ですが、すべてが完全に収まるようにする必要なく、全体NSStackView をmakeDefaultAlert(...)サブビューの完全な高さに合わせて調整したいと考えています。height: 500サブビューに応じて親ビューを自動的に調整するにはどうすればよいでしょうか。ここでは 2NSTextFieldと 1 NSScrollView(表) です。プログラムでセットアップする方法がわからない、何らかの制約などが必要かどうかを理解するのに苦労していますか?