replace v6 with experimental v7 code

src/MpvNet.Windows/Settings.cs

@@ -0,0 +1,61 @@
+
+using System.Windows;
+
+namespace MpvNet.Windows;
+
+public abstract class Setting
+{
+    public string? Default { get; set; }
+    public string? File { get; set; }
+    public string? Directory { get; set; }
+    public string? Help { get; set; }
+    public string? Name { get; set; }
+    public string? StartValue { get; set; }
+    public string? Type { get; set; }
+    public string? URL { get; set; }
+    public string? Value { get; set; }
+
+    public int Width { get; set; }
+
+    public ConfItem? ConfItem { get; set; }
+}
+
+public class StringSetting : Setting
+{
+}
+
+public class OptionSetting : Setting
+{
+    public List<OptionSettingOption> Options { get; } = new List<OptionSettingOption>();
+}
+
+public class OptionSettingOption
+{
+    string? _text;
+
+    public string? Name { get; set; }
+    public string? Help { get; set; }
+
+    public OptionSetting? OptionSetting { get; set; }
+
+    public string? Text
+    {
+        get => string.IsNullOrEmpty(_text) ? Name : _text;
+        set => _text = value;
+    }
+
+    public bool Checked
+    {
+        get => OptionSetting?.Value == Name;
+        set
+        {
+            if (value)
+                OptionSetting!.Value = Name;
+        }
+    }
+
+    public Visibility Visibility
+    {
+        get => string.IsNullOrEmpty(Help) ? Visibility.Collapsed : Visibility.Visible;
+    }
+}