Box slider script

Assets/ConformalDecals/BoxSlider.cs

@@ -0,0 +1,36 @@
+using System;
+using UnityEngine;
+using UnityEngine.Events;
+using UnityEngine.EventSystems;
+using UnityEngine.UI;
+
+namespace ConformalDecals.UI {
+    [AddComponentMenu("UI/BoxSlider", 35)]
+    [RequireComponent(typeof(RectTransform))]
+    public class BoxSlider : Selectable, IDragHandler, IInitializePotentialDragHandler, ICanvasElement {
+        [Serializable]
+        public class BoxSliderEvent : UnityEvent<Vector2> { }
+
+        [SerializeField] private RectTransform _handleRect;
+        [SerializeField] private Vector2       _value = Vector2.zero;
+
+        // Allow for delegate-based subscriptions for faster events than 'eventReceiver', and allowing for multiple receivers.
+        [SerializeField] private BoxSliderEvent _onValueChanged = new BoxSliderEvent();
+
+        public BoxSliderEvent OnValueChanged {
+            get => _onValueChanged;
+            set => _onValueChanged = value;
+        }
+
+        // Private fields
+        public void OnDrag(PointerEventData eventData) { }
+
+        public void OnInitializePotentialDrag(PointerEventData eventData) { }
+
+        public void Rebuild(CanvasUpdate executing) { }
+
+        public void LayoutComplete() { }
+
+        public void GraphicUpdateComplete() { }
+    }
+}