增加工作区背景图片参数

SpineViewer/Models/WorkspaceModel.cs

@@ -43,10 +43,9 @@ namespace SpineViewer.Models
 
         public Color BackgroundColor { get; set; }
 
-        // TODO: 背景图片
-        //public string? BackgroundImagePath { get; set; }
+        public string BackgroundImagePath { get; set; }
 
-        //public ? BackgroundImageDisplayMode { get; set; }
+        public Stretch BackgroundImageMode { get; set; } = Stretch.Uniform;
     }
 
     public class SpineObjectWorkspaceConfigModel

SpineViewer/ViewModels/MainWindow/SFMLRendererViewModel.cs

@@ -551,7 +551,6 @@ namespace SpineViewer.ViewModels.MainWindow
 
         public RendererWorkspaceConfigModel WorkspaceConfig
         {
-            // TODO: 背景图片
             get
             {
                 return new()
@@ -568,6 +567,8 @@ namespace SpineViewer.ViewModels.MainWindow
                     Speed = Speed,
                     ShowAxis = ShowAxis,
                     BackgroundColor = BackgroundColor,
+                    BackgroundImagePath = BackgroundImagePath,
+                    BackgroundImageMode = BackgroundImageMode,
                 };
             }
             set
@@ -583,6 +584,8 @@ namespace SpineViewer.ViewModels.MainWindow
                 Speed = value.Speed;
                 ShowAxis = value.ShowAxis;
                 BackgroundColor = value.BackgroundColor;
+                BackgroundImagePath = value.BackgroundImagePath;
+                BackgroundImageMode = value.BackgroundImageMode;
             }
         }
     }