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Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. /
 package org.apache.cayenne.modeler.editor;
 public class EmbeddableTabbedView extends JTabbedPane implements
     protected ProjectController mediator;
     protected JScrollPane embeddablePanel;
     protected JPanel listenersPanel;
     public EmbeddableTabbedView(ProjectController mediator) {
         this. = mediator;
     private void initView() {
          = new JScrollPane(new EmbeddableTab());
     private void initController() {
         addChangeListener(new ChangeListener() {
             public void stateChanged(ChangeEvent e) {
                 Component selected = getSelectedComponent();
                 while (selected instanceof JScrollPane) {
                     selected = ((JScrollPaneselected).getViewport().getView();
                 if (selected instanceof ExistingSelectionProcessor) {

Reset the remove buttons
     private void resetRemoveButtons() {
         Application app = Application.getInstance();
     public void currentEmbeddableChanged(EmbeddableDisplayEvent e) {
         Embeddable emb = e.getEmbeddable();
         if (e.isMainTabFocus() && emb instanceof Embeddable) {
             if (getSelectedComponent() != ) {
        setVisible(e.getEmbeddable() != null);
        if (e.getEmbeddable() == null)
        EmbeddableAttribute[] attrs = e.getEmbeddableAttributes();
        EmbeddableAttribute[] embAttrs = new EmbeddableAttribute[attrs.length];
        System.arraycopy(attrs, 0, embAttrs, 0, attrs.length);
        if (getSelectedComponent() !=  && embAttrs.length > 0) {
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