Editor stuff

Assets/Plugins/com.unity.uiextensions/Runtime/Scripts/Utilities/SetPropertyUtility.cs

@@ -0,0 +1,36 @@
+/// <summary>
+/// Tool script taken from the UI source as it's set to Internal for some reason. So to use in the extensions project it is needed here also.
+/// </summary>
+/// 
+namespace UnityEngine.UI.Extensions
+{
+    internal static class SetPropertyUtility
+    {
+        public static bool SetColor(ref Color currentValue, Color newValue)
+        {
+            if (currentValue.r == newValue.r && currentValue.g == newValue.g && currentValue.b == newValue.b && currentValue.a == newValue.a)
+                return false;
+
+            currentValue = newValue;
+            return true;
+        }
+
+        public static bool SetStruct<T>(ref T currentValue, T newValue) where T: struct
+        {
+            if (currentValue.Equals(newValue))
+                return false;
+
+            currentValue = newValue;
+            return true;
+        }
+
+        public static bool SetClass<T>(ref T currentValue, T newValue) where T: class
+        {
+            if ((currentValue == null && newValue == null) || (currentValue != null && currentValue.Equals(newValue)))
+                return false;
+
+            currentValue = newValue;
+            return true;
+        }
+    }
+}