From 7a8e8a0bd36fa031d7b99fc7968db8e8f914cb1a Mon Sep 17 00:00:00 2001
From: Ano-sys <timo.niemann02@gmail.com>
Date: Sun, 23 Mar 2025 00:25:58 +0100
Subject: [PATCH] Added Undo List to hold freshly undid drawn Lines

---
 ViewModels/ViewModelBase.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ViewModels/ViewModelBase.cs b/ViewModels/ViewModelBase.cs
index 3deef04..02ef101 100644
--- a/ViewModels/ViewModelBase.cs
+++ b/ViewModels/ViewModelBase.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel.DataAnnotations;
 using System.IO;
@@ -27,7 +28,8 @@ public class ViewModelBase : ObservableObject
     public IRelayCommand<PointerReleasedEventArgs>? CanvasPointerReleasedCommand { get; set; }
     public ObservableCollection<DrawingPoints> DrawingPoints { get; set; } = new();
     public DrawingPoints? DrawingPoint { get; set; }
-    
+    protected List<DrawingPoints> UndoDrawingPoints = new();
+
     protected bool IsDrawing { get; set; }
 
     private string _selectedColor = "Black";