增加访问同步

SpineViewer/src/SpinePreviewer.cs

@@ -319,6 +319,8 @@ namespace SpineViewer
                 var src = new PointF(((SFML.System.Vector2f)draggingSrc).X, ((SFML.System.Vector2f)draggingSrc).Y);
 
                 if (SpineListView is not null)
+                {
+                    lock (SpineListView.Spines)
                     {
                         foreach (var spine in SpineListView.Spines)
                         {
@@ -331,6 +333,7 @@ namespace SpineViewer
                     }
                 }
             }
+        }
 
         private void panel_MouseMove(object sender, MouseEventArgs e)
         {
@@ -360,7 +363,6 @@ namespace SpineViewer
             if ((e.Button & MouseButtons.Right) != 0)
             {
                 draggingSpine = null;
-                SpineListView?.PropertyGrid?.Refresh(); // 面板刷新不能放在 Move 事件里, 会导致一直在 Move
 
                 draggingSrc = null;
                 Cursor = Cursors.Default;
@@ -371,7 +373,6 @@ namespace SpineViewer
             {
                 draggingSrc = null;
                 draggingSpine = null;
-                SpineListView?.PropertyGrid?.Refresh();
             }
         }
 
@@ -446,6 +447,8 @@ namespace SpineViewer
 
                     // 渲染 Spine
                     if (SpineListView is not null)
+                    {
+                        lock (SpineListView.Spines)
                         {
                             foreach (var spine in SpineListView.Spines.Reverse())
                             {
@@ -454,6 +457,7 @@ namespace SpineViewer
                                 // TODO: 渲染包围盒
                             }
                         }
+                    }
 
                     RenderWindow.Display();
                 }