development: added ContentViewAlignment enum to ControlView

Sources/iOS/ControlView.swift

@@ -30,9 +30,15 @@
 
 import UIKit
 
+@objc(ContentViewAlignment)
+public enum ContentViewAlignment: Int {
+    case any
+    case center
+}
+
 open class ControlView: View {
     /// Should center the contentView.
-    open var isCenteredContentView = false {
+    open var contentViewAlignment = ContentViewAlignment.any {
         didSet {
             layoutSubviews()
         }
@@ -201,7 +207,7 @@ open class ControlView: View {
                 grid.views.append(v)
             }
             
-            if isCenteredContentView {
+            if .center == contentViewAlignment {
                 if lc < rc {
                     contentView.grid.columns = columns - 2 * rc
                     contentView.grid.offset.columns = rc - lc

Sources/iOS/Toolbar.swift

@@ -94,7 +94,7 @@ open class Toolbar: BarView {
 	}
 	
     open override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
-        isCenteredContentView = .center == titleLabel.textAlignment || .center == detailLabel.textAlignment
+        contentViewAlignment = .center == titleLabel.textAlignment || .center == detailLabel.textAlignment ? .center : .any
     }
     
     open override func layoutSubviews() {