REPORT-36985 改了一点代码

designer-form/src/main/java/com/fr/design/mainframe/widget/topxcreator/TopXCreator.java

@@ -42,16 +42,8 @@ public class TopXCreator extends BasicTopXCreator {
      * 依据鼠标事件和visible设置是否显示蒙层
      * */
     public void displayCoverPane(MouseEvent event, boolean visible) {
-        if (!visible) {
-            setVisible(false);
-            return;
-        }
-        Rectangle rect = getBounds();
-        if (rect.contains(event.getX(), event.getY())) {
-            coverPanel.setVisible(true);
-        } else {
-            coverPanel.setVisible(false);
-        }
+        boolean isVisible = visible && getBounds().contains(event.getX(), event.getY());
+        coverPanel.setVisible(isVisible);
     }
 
 }