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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
   *
   *  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
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   *  specific language governing permissions and limitations
   *  under the License.
   ****************************************************************/
  package org.apache.cayenne.modeler.util;
  
  import java.awt.event.MouseEvent;
  import java.util.EventObject;
  
  import javax.swing.DefaultCellEditor;
  import javax.swing.JCheckBox;
  import javax.swing.JComboBox;
  import javax.swing.JTextField;
  
  /**
   * Overrides CellEditor to allow multiple selection in table
   * without bothering the editor.
   * 
   */
  public class CayenneCellEditor extends DefaultCellEditor {
      public CayenneCellEditor(final JTextField textField) {
          super(textField);
      }
      
      public CayenneCellEditor(final JCheckBox checkBox) {
          super(checkBox);
      }
      
      public CayenneCellEditor(final JComboBox comboBox) {
          super(comboBox);
      }
      
      @Override
      public boolean isCellEditable(EventObject e) {
          if (e instanceof MouseEvent) {
              //allow multiple selection without 
              
              MouseEvent me = (MouseEvent) e;
              if (me.isControlDown() || me.isShiftDown()) {
                  return false;
              }
          }
          
          return super.isCellEditable(e);
      }
  }
  