REPORT-59952&REPORT-60057&REPORT-60139 解决pr中的问题

designer-form/src/main/java/com/fr/design/widget/ui/designer/NewFormPane.java

@@ -19,6 +19,7 @@ import com.fr.form.main.Form;
 import com.fr.form.ui.Widget;
 import com.fr.form.ui.container.OccupiedLayout;
 import com.fr.form.ui.container.WAbsoluteLayout.BoundsWidget;
+import com.fr.form.ui.container.WBorderLayout;
 import com.fr.form.ui.container.WFitLayout;
 import com.fr.general.ComparatorUtils;
 import com.fr.log.FineLoggerFactory;
@@ -271,15 +272,22 @@ public class NewFormPane extends BasicPane {
     private void newForm(String path) {
         BaseJForm jForm;
         try {
-            jForm = StableFactory.getMarkedInstanceObjectFromClass(BaseJForm.XML_TAG, BaseJForm.class);
-            Form form = (Form) jForm.getTarget();
+            Form form = initEmptyBodyForm();
             initLayoutInfo(form, path);
+            jForm = StableFactory.getMarkedInstanceObjectFromClass(BaseJForm.XML_TAG, new Object[]{form}, BaseJForm.class);
             DesignerContext.getDesignerFrame().addAndActivateJTemplate((JTemplate<?, ?>) jForm);
         } catch (Exception e) {
             FineLoggerFactory.getLogger().error(e.getMessage(), e);
         }
     }
 
+    private Form initEmptyBodyForm() {
+        WFitLayout body = new WFitLayout();
+        WBorderLayout borderLayout = new WBorderLayout("form");
+        borderLayout.addCenter(body);
+        return new Form(borderLayout);
+    }
+
     /**
      * 通过布局文件的位置初始化Form对象的布局信息
      *