1 files changed, 146 insertions, 0 deletions
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Manipulators/Sequence/EaseClip.cs b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Manipulators/Sequence/EaseClip.cs
new file mode 100644
index 0000000..7dddf3a
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Manipulators/Sequence/EaseClip.cs
@@ -0,0 +1,146 @@
+using System;
+using System.Text;
+using UnityEngine;
+using UnityEngine.Timeline;
+
+namespace UnityEditor.Timeline
+{
+    class EaseClip : Manipulator
+    {
+        bool m_IsCaptured;
+        bool m_UndoSaved;
+        TimelineClipHandle m_EaseClipHandler;
+        ManipulateEdges m_Edges;
+        TimelineClip m_Clip;
+        StringBuilder m_OverlayText = new StringBuilder("");
+        double m_OriginalValue;
+
+        public static readonly string EaseInClipText = L10n.Tr("Ease In Clip");
+        public static readonly string EaseOutClipText = L10n.Tr("Ease Out Clip");
+        public static readonly string EaseInText = L10n.Tr("Ease In");
+        public static readonly string EaseOutText = L10n.Tr("Ease Out");
+        public static readonly string DurationFrameText = L10n.Tr(" Duration {0:0.00;-0.00} frames ");
+        public static readonly string DurationSecText = L10n.Tr(" Duration {0:0.00;-0.00} s ");
+        public static readonly string DeltaFrameText = L10n.Tr("({0:+0.00;-0.00} frames)");
+        public static readonly string DeltaSecText = L10n.Tr("({0:+0.00;-0.00} s)");
+
+        protected override bool MouseDown(Event evt, WindowState state)
+        {
+            if (evt.modifiers != ManipulatorsUtils.actionModifier)
+                return false;
+            return MouseDownInternal(evt, state, PickerUtils.PickedLayerableOfType<TimelineClipHandle>());
+        }
+
+        protected bool MouseDownInternal(Event evt, WindowState state, TimelineClipHandle handle)
+        {
+            if (handle == null)
+                return false;
+
+            if (handle.clipGUI.clip != null && !handle.clipGUI.clip.clipCaps.HasAny(ClipCaps.Blending))
+                return false;
+
+            m_Edges = ManipulateEdges.Right;
+            if (handle.trimDirection == TrimEdge.Start)
+                m_Edges = ManipulateEdges.Left;
+
+            if (m_Edges == ManipulateEdges.Left && handle.clipGUI.clip.hasBlendIn || m_Edges == ManipulateEdges.Right && handle.clipGUI.clip.hasBlendOut)
+                return false;
+
+            m_IsCaptured = true;
+            m_UndoSaved = false;
+
+            m_EaseClipHandler = handle;
+            m_Clip = handle.clipGUI.clip;
+            m_OriginalValue = m_Edges == ManipulateEdges.Left ? m_Clip.easeInDuration : m_Clip.easeOutDuration;
+
+
+            // Change cursor only when OnGUI Process (not in test)
+            if (GUIUtility.guiDepth > 0)
+                TimelineCursors.SetCursor(m_Edges == ManipulateEdges.Left ? TimelineCursors.CursorType.MixRight : TimelineCursors.CursorType.MixLeft);
+
+            state.AddCaptured(this);
+            return true;
+        }
+
+        protected override bool MouseUp(Event evt, WindowState state)
+        {
+            if (!m_IsCaptured)
+                return false;
+            m_IsCaptured = false;
+            m_UndoSaved = false;
+            state.captured.Clear();
+
+            // Clear cursor only when OnGUI Process (not in test)
+            if (GUIUtility.guiDepth > 0)
+                TimelineCursors.ClearCursor();
+
+            return true;
+        }
+
+        protected override bool MouseDrag(Event evt, WindowState state)
+        {
+            if (!m_IsCaptured)
+                return false;
+            if (!m_UndoSaved)
+            {
+                var uiClip = m_EaseClipHandler.clipGUI;
+                string undoName = m_Edges == ManipulateEdges.Left ? EaseInClipText : EaseOutClipText;
+                TimelineUndo.PushUndo(uiClip.clip.parentTrack, undoName);
+                m_UndoSaved = true;
+            }
+
+            double d = state.PixelDeltaToDeltaTime(evt.delta.x);
+            if (m_Edges == ManipulateEdges.Left)
+            {
+                m_Clip.easeInDuration = Math.Max(0, m_Clip.easeInDuration + d);
+            }
+            else if (m_Edges == ManipulateEdges.Right)
+            {
+                m_Clip.easeOutDuration = Math.Max(0, m_Clip.easeOutDuration - d);
+            }
+            RefreshOverlayStrings(m_EaseClipHandler, state);
+            return true;
+        }
+
+        public override void Overlay(Event evt, WindowState state)
+        {
+            if (!m_IsCaptured)
+                return;
+            if (m_OverlayText.Length > 0)
+            {
+                int stringLength = m_OverlayText.Length;
+                var r = new Rect(evt.mousePosition.x - (stringLength / 2.0f),
+                    m_EaseClipHandler.clipGUI.rect.yMax,
+                    stringLength, 20);
+                GUI.Label(r, m_OverlayText.ToString(), TimelineWindow.styles.tinyFont);
+            }
+        }
+
+        void RefreshOverlayStrings(TimelineClipHandle handle, WindowState state)
+        {
+            m_OverlayText.Length = 0;
+            m_OverlayText.Append(m_Edges == ManipulateEdges.Left ? EaseInText : EaseOutText);
+            double easeDuration = m_Edges == ManipulateEdges.Left ? m_Clip.easeInDuration : m_Clip.easeOutDuration;
+            double deltaDuration = easeDuration - m_OriginalValue;
+            bool hasDurationDelta = Math.Abs(deltaDuration) > double.Epsilon;
+            if (state.timeInFrames)
+            {
+                easeDuration *= state.editSequence.frameRate;
+                deltaDuration *= state.editSequence.frameRate;
+                m_OverlayText.AppendFormat(DurationFrameText, easeDuration);
+                if (hasDurationDelta)
+                {
+                    m_OverlayText.AppendFormat(DeltaFrameText, deltaDuration);
+                }
+            }
+            else
+            {
+                m_OverlayText.AppendFormat(DurationSecText, easeDuration);
+                if (hasDurationDelta)
+                {
+                    m_OverlayText.AppendFormat(DeltaSecText, deltaDuration);
+                }
+            }
+        }
+    }
+}