first commit

Nitrox.Launcher/Models/Controls/RadioButtonGroup.cs

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+using System;
+using Avalonia;
+using Avalonia.Controls;
+using CommunityToolkit.Mvvm.Input;
+
+namespace Nitrox.Launcher.Models.Controls;
+
+public class RadioButtonGroup : ItemsControl
+{
+    public static readonly DirectProperty<RadioButtonGroup, Type> EnumProperty = AvaloniaProperty.RegisterDirect<RadioButtonGroup, Type>(nameof(Enum), o => o.Enum, (o, v) => o.Enum = v);
+    public static readonly StyledProperty<object> SelectedItemProperty = AvaloniaProperty.Register<RadioButtonGroup, object>(nameof(SelectedItem));
+
+    public static readonly DirectProperty<RadioButtonGroup, RelayCommand<Button>> ItemClickCommandProperty = AvaloniaProperty.RegisterDirect<RadioButtonGroup, RelayCommand<Button>>(nameof(ItemClickCommand), o => o.ItemClickCommand, (o, v) => o.ItemClickCommand = v);
+
+    private Type @enum;
+    private RelayCommand<Button> itemClickCommand;
+
+    public Type Enum
+    {
+        get => @enum;
+        set
+        {
+            if (value is not { IsEnum: true })
+            {
+                return;
+            }
+
+            ItemsSource = System.Enum.GetValues(value);
+            SetAndRaise(EnumProperty, ref @enum, value);
+        }
+    }
+
+    public RelayCommand<Button> ItemClickCommand
+    {
+        get => itemClickCommand;
+        private set => SetAndRaise(ItemClickCommandProperty, ref itemClickCommand, value);
+    }
+
+    public object SelectedItem
+    {
+        get => GetValue(SelectedItemProperty);
+        set => SetValue(SelectedItemProperty, value);
+    }
+
+    public RadioButtonGroup()
+    {
+        itemClickCommand = new RelayCommand<Button>(param => SelectedItem = param.Tag);
+    }
+
+    protected override Type StyleKeyOverride { get; } = typeof(ItemsControl);
+}