code: //==============================================================================
  //	
  //	Copyright (c) 2002-
  //	Authors:
  //	* Andrew Hinton <ug60axh@cs.bham.ac.uk> (University of Birmingham)
  //	
  //------------------------------------------------------------------------------
  //	
  //	This file is part of PRISM.
  //	
  //	PRISM is free software; you can redistribute it and/or modify
  //	it under the terms of the GNU General Public License as published by
  //	the Free Software Foundation; either version 2 of the License, or
  //	(at your option) any later version.
  //	
  //	PRISM is distributed in the hope that it will be useful,
  //	but WITHOUT ANY WARRANTY; without even the implied warranty of
  //	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  //	GNU General Public License for more details.
  //	
  //	You should have received a copy of the GNU General Public License
  //	along with PRISM; if not, write to the Free Software Foundation,
  //	Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  //	
  //==============================================================================
  
  package settings;
  
  import javax.swing.*;
  import java.awt.*;
  import java.awt.event.*;
  import javax.swing.event.*;
  import java.util.*;
  
  public class BooleanEditor implements SettingEditor, ActionListener
  {
  	private JCheckBox renderer;
  	private JPanel panel;
  
  	private JTable lastTable = null;
  	private int tableCol = -1;
  	private int tableRow = -1;
  
  	private boolean modified = false;
  
  	public BooleanEditor()
  	{
  		panel = new JPanel();
  		//FlowLayout flow = new FlowLayout(FlowLayout.CENTER);
  		//flow.setHgap(0);
  		panel.setLayout(new BorderLayout());//new GridBagLayout());//flow);//new FlowLayout(FlowLayout.CENTER));
  		renderer = new JCheckBox();
  		renderer.setPreferredSize(new Dimension(17, 12));
  		panel.add(renderer);
  		renderer.addActionListener(this);
  	}
  
  	public Object getEditorValue()
  	{
  		if (modified) {
  			modified = false;
  			return new Boolean(renderer.isSelected());
  		} else
  			return NOT_CHANGED_VALUE;
  	}
  
  	public Component getTableCellEditorComponent(JTable table, Setting owner, Object value, boolean isSelected, int row, int column)
  	{
  		if (isSelected) {
  			panel.setBackground(table.getSelectionBackground());
  			renderer.setBackground(table.getSelectionBackground());
  		} else {
  			panel.setBackground(table.getBackground());
  			renderer.setBackground(table.getBackground());
  		}
  
  		panel.setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
  
  		if (value instanceof Boolean) {
  			Boolean boo = (Boolean) value;
  
  			renderer.setSelected(boo.booleanValue());
  
  		} else if (value instanceof ArrayList) {
  			ArrayList<?> values = (ArrayList<?>) value;
  			if (values.size() > 0) {
  				//if we have multiple properties selected.
  				Boolean last = null;
  				boolean allSame = true;
  				for (int i = 0; i < values.size(); i++) {
  					if (values.get(i) instanceof Boolean) {
  						Boolean str = (Boolean) values.get(i);
  						if (last != null) {
  							if (!str.equals(last)) {
  								allSame = false;
  								break;
  							}
  							last = str;
  						} else {
  							last = str;
  						}
  					}
  				}
  				if (allSame) {
  					renderer.setSelected(last.booleanValue());
  				} else {
  					renderer.setSelected(false);
  					renderer.setBackground(Color.lightGray);
  
  				}
  
  			}
  		}
  
  		renderer.setOpaque(true);
  
  		lastTable = table;
  		tableRow = row;
  		tableCol = column;
  
  		return panel;
  	}
  
  	public void stopEditing()
  	{
  	}
  
  	public void actionPerformed(ActionEvent e)
  	{
  		modified = true;
  		if (lastTable != null)
  			lastTable.editingStopped(new ChangeEvent(this));
  		//if(lastTable.getCellEditor() != null) lastTable.removeEditor();
  		/*Object obj = getEditorValue();
  		
  		if(lastTable != null)
  		{
  		    lastTable.setValueAt(obj, tableRow, tableCol);
  		}*/
  		lastTable.getSelectionModel().setSelectionInterval(tableRow, tableRow);
  		lastTable.getColumnModel().getSelectionModel().setSelectionInterval(tableCol, tableCol);
  	}
  
  }
  