Make View, Shape and Polygon open

C4/UI/Polygon.swift

@@ -21,7 +21,7 @@ import Foundation
 import CoreGraphics
 
 ///  Polygon is a concrete subclass of Shape that has a special initialzer that creates a non-uniform shape made up of 3 or more points.
-public class Polygon: Shape {
+open class Polygon: Shape {
 
     /// Returns the array of points that make up the polygon.
     ///

C4/UI/Shape.swift

@@ -21,7 +21,7 @@ import QuartzCore
 import UIKit
 
 /// Shape is a concrete subclass of View that draws a bezier path in its coordinate space.
-public class Shape: View {
+open class Shape: View {
     internal class ShapeView: UIView {
         var shapeLayer: ShapeLayer {
             return self.layer as! ShapeLayer // swiftlint:disable:this force_cast
@@ -46,7 +46,7 @@ public class Shape: View {
     }
 
     /// Shape's contents are drawn on a ShapeLayer.
-    public var shapeLayer: ShapeLayer {
+    open var shapeLayer: ShapeLayer {
         return self.shapeView.shapeLayer
     }
 
@@ -230,7 +230,7 @@ public class Shape: View {
 
     /// The current rotation value of the view. Animatable.
     /// - returns: A Double value representing the cumulative rotation of the view, measured in Radians.
-    public override var rotation: Double {
+    open override var rotation: Double {
         get {
             if let number = shapeLayer.value(forKeyPath: Layer.rotationKey) as? NSNumber {
                 return number.doubleValue

C4/UI/View+KeyValues.swift

@@ -24,7 +24,7 @@ extension View {
     ///
     /// - parameter value: The value for the key identified by _key_.
     /// - parameter key:   The name of one of the receiver's properties.
-    public override func setValue(_ value: Any?, forKey key: String) {
+    open override func setValue(_ value: Any?, forKey key: String) {
         switch (key, value) {
         case ("frame", let nsvalue as NSValue):
             frame = Rect(nsvalue.cgRectValue)
@@ -54,7 +54,7 @@ extension View {
     /// - parameter key: The name of one of the receiver's properties.
     ///
     /// - returns: The value for the data specified by the key.
-    public override func value(forKey key: String) -> Any? {
+    open override func value(forKey key: String) -> Any? {
         switch key {
         case "frame":
             return NSValue(cgRect: CGRect(frame))

C4/UI/View.swift

@@ -28,13 +28,13 @@ extension NSValue {
 }
 
 /// The View class defines a rectangular area on the screen and the interfaces for managing visual content in that area. The View class itself provides basic behavior for filling its rectangular area with a background color. More sophisticated content can be presented by subclassing UIView and implementing the necessary drawing and event-handling code yourself. The C4 framework also includes a set of standard subclasses that range from simple shapes to movies and images that can be used as-is.
-public class View: NSObject {
+open class View: NSObject {
     /// A UIView. Internally, View wraps and provides access to an internal UIView.
-    public var view: UIView = LayerView()
+    open var view: UIView = LayerView()
 
     /// The current rotation value of the view. Animatable.
     /// - returns: A Double value representing the cumulative rotation of the view, measured in Radians.
-    public var rotation: Double {
+    open var rotation: Double {
         get {
             if let number = animatableLayer.value(forKeyPath: Layer.rotationKey) as? NSNumber {
                 return number.doubleValue
@@ -47,23 +47,23 @@ public class View: NSObject {
     }
 
     /// The view that contains the receiver's animatable layer.
-    internal var layerView: LayerView {
+    open var layerView: LayerView {
         return self.view as! LayerView // swiftlint:disable:this force_cast
     }
 
-    internal class LayerView: UIView {
-        var animatableLayer: Layer {
+    open class LayerView: UIView {
+        open var animatableLayer: Layer {
             return self.layer as! Layer // swiftlint:disable:this force_cast
         }
 
-        override class var layerClass: AnyClass {
+        override open class var layerClass: AnyClass {
             return Layer.self
         }
     }
 
     /// The view's primary layer.
     /// - returns: A Layer, whose properties are animatable (e.g. rotation)
-    public var animatableLayer: Layer {
+    open var animatableLayer: Layer {
         return self.layerView.animatableLayer
     }