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   *  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
   *
   *    https://www.apache.org/licenses/LICENSE-2.0
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  package org.apache.cayenne.modeler.editor;
  
  import java.awt.Component;
  
  import javax.swing.JPanel;
  import javax.swing.JScrollPane;
  import javax.swing.JTabbedPane;
  import javax.swing.event.ChangeEvent;
  import javax.swing.event.ChangeListener;
  
  import org.apache.cayenne.map.Embeddable;
  import org.apache.cayenne.map.EmbeddableAttribute;
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.ProjectController;
  import org.apache.cayenne.modeler.action.ActionManager;
  import org.apache.cayenne.modeler.action.RemoveAttributeAction;
  import org.apache.cayenne.modeler.action.RemoveCallbackMethodAction;
  import org.apache.cayenne.modeler.event.EmbeddableAttributeDisplayEvent;
  import org.apache.cayenne.modeler.event.EmbeddableAttributeDisplayListener;
  import org.apache.cayenne.modeler.event.EmbeddableDisplayEvent;
  import org.apache.cayenne.modeler.event.EmbeddableDisplayListener;
  
  public class EmbeddableTabbedView extends JTabbedPane implements
          EmbeddableAttributeDisplayListener, EmbeddableDisplayListener {
  
      protected ProjectController mediator;
  
      protected JScrollPane embeddablePanel;
      protected EmbeddableAttributeTab attributesPanel;
  
      protected JPanel listenersPanel;
  
      public EmbeddableTabbedView(ProjectController mediator) {
          this.mediator = mediator;
  
          initView();
          initController();
      }
  
      private void initView() {
          setTabPlacement(JTabbedPane.TOP);
  
          embeddablePanel = new JScrollPane(new EmbeddableTab(mediator));
          addTab("Embeddable", embeddablePanel);
  
          attributesPanel = new EmbeddableAttributeTab(mediator);
          addTab("Attributes", attributesPanel);
      }
  
      private void initController() {
  
          mediator.addEmbeddableAttributeDisplayListener(this);
          mediator.addEmbeddableDisplayListener(this);
  
          addChangeListener(new ChangeListener() {
  
              public void stateChanged(ChangeEvent e) {
                  resetRemoveButtons();
                  Component selected = getSelectedComponent();
                  while (selected instanceof JScrollPane) {
                      selected = ((JScrollPane) selected).getViewport().getView();
                  }
  
                  if (selected instanceof ExistingSelectionProcessor) {
                      ((ExistingSelectionProcessor) selected).processExistingSelection(e);
                  }
              }
          });
      }
  
      /** Reset the remove buttons */
      private void resetRemoveButtons() {
          ActionManager actionManager = Application.getInstance().getActionManager();
  
          actionManager.getAction(RemoveAttributeAction.class).setEnabled(false);
          actionManager.getAction(RemoveCallbackMethodAction.class).setEnabled(false);
      }
  
      public void currentEmbeddableChanged(EmbeddableDisplayEvent e) {
          Embeddable emb = e.getEmbeddable();
          if (e.isMainTabFocus() && emb instanceof Embeddable) {
              
              if (getSelectedComponent() != embeddablePanel) {
                  setSelectedComponent(embeddablePanel);
                  embeddablePanel.setVisible(true);
              }
          }
  
          resetRemoveButtons();
          setVisible(e.getEmbeddable() != null);
      }
  
      public void currentEmbeddableAttributeChanged(EmbeddableAttributeDisplayEvent e) {
          if (e.getEmbeddable() == null)
              return;
  
          EmbeddableAttribute[] attrs = e.getEmbeddableAttributes();
          EmbeddableAttribute[] embAttrs = new EmbeddableAttribute[attrs.length];
  
          System.arraycopy(attrs, 0, embAttrs, 0, attrs.length);
  
          if (getSelectedComponent() != attributesPanel && embAttrs.length > 0) {
              setSelectedComponent(attributesPanel);
              attributesPanel.setVisible(true);
          }
  
          attributesPanel.selectAttributes(embAttrs);
      }
  }
  