Added Button to save - updated SplitView functionality - updated SplitViewOpenButton

ViewModels/ViewModelBase.cs

@@ -1,11 +1,19 @@
 using System;
 using System.Collections.ObjectModel;
 using System.ComponentModel.DataAnnotations;
+using System.IO;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
 using Avalonia.Input;
 using Avalonia.Media;
+using Avalonia.Media.Imaging;
+using Avalonia.Platform;
+using Avalonia.Platform.Storage;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using SimpleDraw.Models;
+using SimpleDraw.Views;
 
 namespace SimpleDraw.ViewModels;
 
@@ -13,8 +21,7 @@ public class ViewModelBase : ObservableObject
 {
     public int WindowWidth { get; set; } = 1200;
     public int WindowHeight { get; set; } = 800;
-    
-    public ObservableCollection<ColorPickerButton>? ColorPalette { get; set; } 
+    public ObservableCollection<ColorPickerButton>? ColorPalette { get; set; }
     public IRelayCommand<PointerPressedEventArgs>? CanvasPointerPressedCommand { get; set; }
     public IRelayCommand<PointerEventArgs>? CanvasPointerMovedCommand { get; set; }
     public IRelayCommand<PointerReleasedEventArgs>? CanvasPointerReleasedCommand { get; set; }
@@ -22,7 +29,15 @@ public class ViewModelBase : ObservableObject
     public DrawingPoints? DrawingPoint { get; set; }
     
     protected bool IsDrawing { get; set; }
-    
+
+    private string _selectedColor = "Black";
+
+    public string SelectedColor
+    {
+        get => _selectedColor;
+        set => SetProperty(ref _selectedColor, value);
+    }
+
     private Brush _brush = new SolidColorBrush(new Color(a: 255, r: 0, g: 0, b: 0));
     private double _brushThickness = 2.0;
     
@@ -31,7 +46,7 @@ public class ViewModelBase : ObservableObject
         get => _brush;
         set => SetProperty(ref _brush, value);
     }
-    
+
     public double BrushThickness
     {
         get => _brushThickness;