chore: import upstream snapshot with attribution

2026-07-13 13:13:17 +08:00
commit 58ab8315aa
8961 changed files with 5602567 additions and 0 deletions
@@ -0,0 +1,43 @@
+#nullable enable
+
+using T3.Core.Animation;
+using T3.Core.DataTypes;
+
+namespace T3.Editor.UiModel.Commands.Animation;
+
+public sealed class AddKeyframesCommand : ICommand
+{
+    public string Name => "Add keyframe";
+    public bool IsUndoable => true;
+        
+    private readonly Curve _curve;
+    private readonly VDefinition? _originalKey;
+    private readonly VDefinition _newKey;
+        
+
+    public AddKeyframesCommand(Curve curve, VDefinition newKey)
+    {
+        _curve = curve;
+        _originalKey = curve.GetV(newKey.U);
+        _newKey = newKey;
+    }
+        
+    public void Undo()
+    {
+        if (_originalKey != null)
+        {
+            _curve.AddOrUpdateV(_originalKey.U, _originalKey);                
+        }
+        else
+        {
+            _curve.RemoveKeyframeAt(_newKey.U);
+        }
+        _curve.UpdateTangents();
+    }
+
+    public void Do()
+    {
+        _curve.AddOrUpdateV(_newKey.U, _newKey);
+        _curve.UpdateTangents();
+    }
+}