From 2c120d126be1cff6ed2e4da3dc9bd7b2f2c22c82 Mon Sep 17 00:00:00 2001
From: Yuto Terada <lugongdao07@gmail.com>
Date: Wed, 23 Oct 2024 12:12:29 +0900
Subject: [PATCH] feat: Adjust keyframe positions for the latter elements after
 splitting

---
 src/Beutl/ViewModels/ElementViewModel.cs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/Beutl/ViewModels/ElementViewModel.cs b/src/Beutl/ViewModels/ElementViewModel.cs
index 601e8fe83..0b03ea0c9 100644
--- a/src/Beutl/ViewModels/ElementViewModel.cs
+++ b/src/Beutl/ViewModels/ElementViewModel.cs
@@ -3,6 +3,7 @@
 using Avalonia;
 using Avalonia.Input;
 using Avalonia.Input.Platform;
+using Beutl.Animation;
 using Beutl.Commands;
 using Beutl.Helpers;
 using Beutl.Models;
@@ -360,6 +361,16 @@ private void OnSplit(TimeSpan timeSpan)
         IRecordableCommand command1 = Scene.MoveChild(Model.ZIndex, Model.Start, forwardLength, Model);
         backward.Start = absTime;
         backward.Length = backwardLength;
+        foreach (KeyFrameAnimation item in new ObjectSearcher(backward,
+                         o => o is KeyFrameAnimation { UseGlobalClock: false })
+                     .SearchAll()
+                     .OfType<KeyFrameAnimation>())
+        {
+            foreach (IKeyFrame keyframe in item.KeyFrames)
+            {
+                keyframe.KeyTime -= forwardLength;
+            }
+        }
 
         backward.Save(RandomFileNameGenerator.Generate(Path.GetDirectoryName(Scene.FileName)!,
             Constants.ElementFileExtension));