add basic files

src/Shared/HandyControl_Shared/Tools/Helper/ConfigHelper.cs

@@ -0,0 +1,60 @@
+using System;
+using System.ComponentModel;
+using System.Globalization;
+using System.Runtime.CompilerServices;
+using System.Windows;
+using System.Windows.Markup;
+using HandyControl.Controls;
+using HandyControl.Data;
+
+namespace HandyControl.Tools
+{
+    public class ConfigHelper : INotifyPropertyChanged
+    {
+        private ConfigHelper()
+        {
+
+        }
+
+        public static ConfigHelper Instance = new Lazy<ConfigHelper>(() => new ConfigHelper()).Value; 
+
+        private XmlLanguage _lang = XmlLanguage.GetLanguage("zh-cn");
+
+        public XmlLanguage Lang
+        {
+            get => _lang;
+            set
+            {
+                if (!_lang.IetfLanguageTag.Equals(value.IetfLanguageTag))
+                {
+                    _lang = value;
+                    OnPropertyChanged();
+                }
+            }
+        }
+
+        public void SetSystemVersionInfo(SystemVersionInfo info)
+        {
+            BlurWindow.SystemVersionInfo = info;           
+        }
+
+        public void SetLang(string lang)
+        {
+            Application.Current.Dispatcher.Thread.CurrentUICulture = new CultureInfo(lang);
+            Lang = XmlLanguage.GetLanguage(lang);
+        }
+
+        public void SetConfig(HandyControlConfig config)
+        {
+            SetSystemVersionInfo(config.SystemVersionInfo);
+            SetLang(config.Lang);
+        }
+
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}