增加上一次状态的保存和恢复

SpineViewer/Models/LastStateModel.cs

@@ -4,11 +4,14 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
+using System.Windows.Media;
 
 namespace SpineViewer.Models
 {
-    public class MainWindowLayoutModel
+    public class LastStateModel
     {
+        #region 画面布局状态
+
         public double WindowLeft { get; set; }
         public double WindowTop { get; set; }
         public double WindowWidth { get; set; }
@@ -19,5 +22,19 @@ namespace SpineViewer.Models
         public double ModelListRow0Height { get; set; }
         public double ExplorerGridRow0Height { get; set; }
         public double RightPanelGridRow0Height { get; set; }
+
+        #endregion
+
+        #region 预览画面状态
+
+        public uint ResolutionX { get; set; } = 1500;
+        public uint ResolutionY { get; set; } = 1000;
+        public uint MaxFps { get; set; } = 30;
+        public float Speed { get; set; } = 1f;
+        public bool ShowAxis { get; set; } = true;
+        public Color BackgroundColor { get; set; } = Color.FromRgb(105, 105, 105);
+
+        #endregion
+
     }
 }

SpineViewer/Models/PreferenceModel.cs

@@ -71,22 +71,6 @@ namespace SpineViewer.Models
 
         #endregion
 
-        #region 预览画面首选项
-
-        [ObservableProperty]
-        private uint _maxFps = 30;
-
-        [ObservableProperty]
-        private float _speed = 1f;
-
-        [ObservableProperty]
-        private bool _showAxis = true;
-
-        [ObservableProperty]
-        private Color _backgroundColor = Color.FromRgb(105, 105, 105);
-
-        #endregion
-
         #region 程序选项
 
         [ObservableProperty]