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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
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   ****************************************************************/
  package org.apache.cayenne.modeler.util;
  
  import java.awt.Component;
  import java.awt.event.MouseEvent;
  import java.util.EventObject;
  import java.util.Hashtable;
  
  import javax.swing.DefaultCellEditor;
  import javax.swing.JComboBox;
  import javax.swing.JTable;
  import javax.swing.event.CellEditorListener;
  import javax.swing.table.TableCellEditor;
  
  
  public class CellEditorForAttributeTable implements TableCellEditor {
  
          protected Hashtable editors;
          protected TableCellEditor editor, defaultEditor;
          JTable table;
  
          public CellEditorForAttributeTable(JTable table, JComboBox combo) {
              this.table = table;
              editors = new Hashtable();
              if (combo != null) {
                  defaultEditor = new DefaultCellEditor(combo);
              }
              else {
                  defaultEditor = new DefaultCellEditor(new JComboBox());
              }
          }
  
          public void setEditorAt(int row, TableCellEditor editor) {
              editors.put(row, editor);
          }
  
          public Component getTableCellEditorComponent(
                  JTable table,
                  Object value,
                  boolean isSelected,
                  int row,
                  int column) {
              column = table.convertColumnIndexToView(column);
              return editor.getTableCellEditorComponent(
                      table,
                      value,
                      isSelected,
                      row,
                      column);
          }
  
          public Object getCellEditorValue() {
              return editor.getCellEditorValue();
          }
  
          public boolean stopCellEditing() {
              return editor.stopCellEditing();
          }
  
          public void cancelCellEditing() {
              editor.cancelCellEditing();
          }
  
          public boolean isCellEditable(EventObject anEvent) {
              selectEditor((MouseEvent) anEvent);
              return editor.isCellEditable(anEvent);
          }
  
          public void addCellEditorListener(CellEditorListener l) {
              editor.addCellEditorListener(l);
          }
  
          public void removeCellEditorListener(CellEditorListener l) {
              editor.removeCellEditorListener(l);
          }
  
          public boolean shouldSelectCell(EventObject anEvent) {
              selectEditor((MouseEvent) anEvent);
              return editor.shouldSelectCell(anEvent);
          }
  
          protected void selectEditor(MouseEvent e) {
              int row;
              if (e == null) {
                  row = table.getSelectionModel().getAnchorSelectionIndex();
              }
              else {
                  row = table.rowAtPoint(e.getPoint());
              }
              editor = (TableCellEditor) editors.get(row);
              if (editor == null) {
                  editor = defaultEditor;
              }
          }
      
  
  }
  