//==============================================================================
//	
//	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.*;


/**
 *
 * @author  ug60axh
 */
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);
    }
    
}