Initial Commit

Common/UndoSystem/LambdaUndoAction.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Microsoft.Research.DynamicDataDisplay.Common.UndoSystem
+{
+	public sealed class LambdaUndoAction : UndoAction
+	{
+		private readonly Action doAction;
+		private readonly Action undoAction;
+
+		public LambdaUndoAction(Action doAction, Action undoAction)
+		{
+			if (doAction == null)
+				throw new ArgumentNullException("doHander");
+			if (undoAction == null)
+				throw new ArgumentNullException("undoAction");
+
+			this.doAction = doAction;
+			this.undoAction = undoAction;
+		}
+
+		public override void Do()
+		{
+			doAction();
+		}
+
+		public override void Undo()
+		{
+			undoAction();
+		}
+	}
+}