translation using NGettext.Wpf

src/NGettext.Wpf/ChangeCultureCommand.cs

@@ -0,0 +1,32 @@
+
+using System.Globalization;
+using System.Windows.Input;
+
+namespace NGettext.Wpf
+{
+    public class ChangeCultureCommand : ICommand
+    {
+        public bool CanExecute(object? parameter)
+        {
+            return CultureInfo.GetCultures(CultureTypes.SpecificCultures)
+                .Any(cultureInfo => cultureInfo.Name == (string)parameter);
+        }
+
+        public void Execute(object? parameter)
+        {
+            if (CultureTracker is null)
+            {
+                CompositionRoot.WriteMissingInitializationErrorMessage();
+                return;
+            }
+
+            CultureTracker.CurrentCulture =
+                CultureInfo.GetCultures(CultureTypes.SpecificCultures)
+                    .Single(cultureInfo => cultureInfo.Name == (string)parameter);
+        }
+
+        public event EventHandler? CanExecuteChanged;
+
+        public static ICultureTracker? CultureTracker { get; set; }
+    }
+}