Font size adjustment

App/Document Controls UI/DocumentControlViewController.swift

@@ -0,0 +1,32 @@
+//
+//  DocumentControlViewController.swift
+//  App
+//
+//  Created by James Magahern on 9/22/20.
+//
+
+import UIKit
+
+class DocumentControlViewController: UIViewController
+{
+    let documentControlView = StackView(dimension: .vertical)
+    let fontSizeAdjustView = FontSizeAdjustView()
+    
+    static public let preferredWidth = CGFloat(200.0)
+    static public let controlHeight = CGFloat(48.0)
+    
+    convenience init() {
+        self.init(nibName: nil, bundle: nil)
+        
+        documentControlView.addArrangedSubview(fontSizeAdjustView)
+    }
+    
+    override func loadView() {
+        self.view = documentControlView
+    }
+    
+    override var preferredContentSize: CGSize {
+        get { documentControlView.sizeThatFits(CGSize(width: Self.preferredWidth, height: -1)) }
+        set {}
+    }
+}