test

My project/Library/PackageCache/com.unity.timeline/Editor/treeview/TimelineClipHandle.cs

@@ -0,0 +1,53 @@
+using UnityEngine;
+
+namespace UnityEditor.Timeline
+{
+    class TimelineClipHandle : ILayerable
+    {
+        Rect m_Rect;
+        readonly TimelineClipGUI m_ClipGUI;
+        readonly TrimEdge m_TrimDirection;
+        readonly LayerZOrder m_ZOrder;
+
+        public Rect boundingRect
+        {
+            get { return m_ClipGUI.parent.ToWindowSpace(m_Rect); }
+        }
+
+        public TrimEdge trimDirection
+        {
+            get { return m_TrimDirection; }
+        }
+
+        public TimelineClipGUI clipGUI
+        {
+            get { return m_ClipGUI; }
+        }
+
+        public LayerZOrder zOrder
+        {
+            get { return m_ZOrder; }
+        }
+
+        public TimelineClipHandle(TimelineClipGUI theClipGUI, TrimEdge trimDirection)
+        {
+            m_TrimDirection = trimDirection;
+            m_ClipGUI = theClipGUI;
+            m_ZOrder = theClipGUI.zOrder.ChangeLayer(Layer.ClipHandles);
+        }
+
+        public void Draw(Rect clientRect, float width, WindowState state)
+        {
+            var handleRect = clientRect;
+            handleRect.width = width;
+
+            if (m_TrimDirection == TrimEdge.End)
+                handleRect.x = clientRect.xMax - width;
+
+            m_Rect = handleRect;
+            if (!TimelineWindow.instance.state.editSequence.isReadOnly)
+                EditorGUIUtility.AddCursorRect(handleRect, MouseCursor.SplitResizeLeftRight);
+            state.spacePartitioner.AddBounds(this, boundingRect);
+        }
+    }
+}