增加 wallpaper view

SpineViewer/ViewModels/MainWindow/MainWindowViewModel.cs

@@ -77,7 +77,15 @@ namespace SpineViewer.ViewModels.MainWindow
         public SFMLRendererViewModel SFMLRendererViewModel => _sfmlRendererViewModel;
         private readonly SFMLRendererViewModel _sfmlRendererViewModel;
 
-        public RelayCommand Cmd_Exit => new(App.Current.Shutdown);
+        public RelayCommand Cmd_SwitchWallpaperView => _cmd_SwitchWallpaperView ??= new(() =>
+        {
+            _preferenceViewModel.WallpaperView = !_preferenceViewModel.WallpaperView;
+            _preferenceViewModel.SavePreference();
+        });
+        private RelayCommand _cmd_SwitchWallpaperView;
+
+        public RelayCommand Cmd_Exit => _cmd_Exit ??= new(App.Current.Shutdown);
+        private RelayCommand? _cmd_Exit;
 
         /// <summary>
         /// 打开工作区
@@ -137,5 +145,6 @@ namespace SpineViewer.ViewModels.MainWindow
                 _spineObjectListViewModel.LoadedSpineObjects = value.LoadedSpineObjects;
             }
         }
+
     }
 }

SpineViewer/ViewModels/MainWindow/PreferenceViewModel.cs

@@ -111,6 +111,7 @@ namespace SpineViewer.ViewModels.MainWindow
                     DebugPoints = DebugPoints,
                     DebugClippings = DebugClippings,
 
+                    WallpaperView = WallpaperView,
                     RenderSelectedOnly = RenderSelectedOnly,
                     AssociateFileSuffix = AssociateFileSuffix,
                     AppLanguage = AppLanguage,
@@ -136,6 +137,7 @@ namespace SpineViewer.ViewModels.MainWindow
                 DebugPoints = value.DebugPoints;
                 DebugClippings = value.DebugClippings;
 
+                WallpaperView = value.WallpaperView;
                 RenderSelectedOnly = value.RenderSelectedOnly;
                 AssociateFileSuffix = value.AssociateFileSuffix;
                 AppLanguage = value.AppLanguage;
@@ -244,6 +246,19 @@ namespace SpineViewer.ViewModels.MainWindow
 
         public static ImmutableArray<AppLanguage> AppLanguageOptions { get; } = Enum.GetValues<AppLanguage>().ToImmutableArray();
 
+        public bool AutoRun
+        {
+            get => throw new NotImplementedException();
+            set => throw new NotImplementedException();
+        }
+
+        public bool WallpaperView
+        {
+            get => _wallpaperView;
+            set => SetProperty(ref _wallpaperView, value);
+        }
+        private bool _wallpaperView; // UI 变化通过 PropertyChanged 事件交由 View 层处理
+
         public bool RenderSelectedOnly
         {
             get => _vmMain.SFMLRendererViewModel.RenderSelectedOnly;