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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
   *
   *    https://www.apache.org/licenses/LICENSE-2.0
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   ****************************************************************/
  package org.apache.cayenne.modeler.action;
  
  import java.awt.Toolkit;
  import java.awt.event.ActionEvent;
  import java.awt.event.KeyEvent;
  
  import javax.swing.KeyStroke;
  
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.util.CayenneAction;
  
  public class UndoAction extends CayenneAction {
  
      @Override
      public boolean isAlwaysOn() {
          return false;
      }
  
      public static String getActionName() {
          return "Undo";
      }
      
      public UndoAction(Application application) {
          super(getActionName(), application);
      }
      
      @Override
      public KeyStroke getAcceleratorKey() {
          return KeyStroke.getKeyStroke(KeyEvent.VK_Z, Toolkit.getDefaultToolkit().getMenuShortcutKeyMaskEx());
      }
      
      @Override
      public String getIconName() {
          return "icon-undo.png";
      }
  
      @Override
      public void performAction(ActionEvent e) {
          application.getUndoManager().undo();
      }
  }
  