Drag drop finally works

WIP item background
New Donate page stub
Renamed some classes as services

ModernKeePass/ViewModels/Items/SettingsNewVm.cs

@@ -1,47 +1,23 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using Windows.Storage;
-using ModernKeePassLib.Cryptography.KeyDerivation;
+using System.Collections.Generic;
+using ModernKeePass.Services;
 
 namespace ModernKeePass.ViewModels
 {
     public class SettingsNewVm
     {
-        private readonly ApplicationDataContainer _localSettings = ApplicationData.Current.LocalSettings;
 
         public bool IsCreateSample
         {
-            get { return GetSetting<bool>("Sample"); }
-            set { PutSetting("Sample", value); }
+            get { return SettingsService.GetSetting<bool>("Sample"); }
+            set { SettingsService.PutSetting("Sample", value); }
         }
 
-        public IEnumerable<string> KeyDerivations => KdfPool.Engines.Select(e => e.Name);
+        public IEnumerable<string> FileFormats => new []{"2", "4"};
 
-        public string KeyDerivationName
+        public string FileFormatVersion
         {
-            get { return GetSetting<string>("KeyDerivation"); }
-            set { PutSetting("KeyDerivation", value); }
-        }
-
-        // TODO: Move this to a common class
-        private T GetSetting<T>(string property)
-        {
-            try
-            {
-                return (T)Convert.ChangeType(_localSettings.Values[property], typeof(T));
-            }
-            catch (InvalidCastException)
-            {
-                return default(T);
-            }
-        }
-
-        private void PutSetting<T>(string property, T value)
-        {
-            if (_localSettings.Values.ContainsKey(property))
-                _localSettings.Values[property] = value;
-            else _localSettings.Values.Add(property, value);
+            get { return SettingsService.GetSetting<string>("DefaultFileFormat"); }
+            set { SettingsService.PutSetting("DefaultFileFormat", value); }
         }
     }
 }