/*
 * @(#)AbstractTreeTableModel.java    1.2 98/10/27
 *
 * Copyright 1997, 1998 by Sun Microsystems, Inc.,
 * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information
 * of Sun Microsystems, Inc. ("Confidential Information").  You
 * shall not disclose such Confidential Information and shall use
 * it only in accordance with the terms of the license agreement
 * you entered into with Sun.
 */
package pcgen.gui2.util.treetable;

import javax.swing.tree.DefaultTreeModel;

import pcgen.util.Logging;

/**
 * An abstract implementation of the TreeTableModel interface, handling the list
 * of listeners.
 * @author Philip Milne
 */
public abstract class AbstractTreeTableModel extends DefaultTreeModel implements TreeTableModel
{

    protected AbstractTreeTableModel()
    {
        this(null);
    }
    
    public AbstractTreeTableModel(TreeTableNode root)
    {
        super(root);
    }

    /** By default, make the column with the Tree in it the only editable one. 
    *  Making this column editable causes the JTable to forward mouse 
    *  and keyboard events in the Tree column to the underlying JTree. 
    */
	@Override
    public boolean isCellEditable(Object node, int column)
    {
        return getColumnClass(column) == TreeTableNode.class;
    }

	@Override
	public Class<?> getColumnClass(int column)
	{
		if (column == 0)
		{
			return TreeTableNode.class;
		}
		return Object.class;
	}

    /**
     *  Returns a default name for the column using spreadsheet conventions:
     *  A, B, C, ... Z, AA, AB, etc.  If {@code column} cannot be found,
     *  returns an empty string.
     *
     * @param column  the column being queried
     * @return a string containing the default name of {@code column}
     */
	@Override
    public String getColumnName(int column)
    {
        String result = "";
        for (; column >= 0; column = column / 26 - 1)
        {
            result = (char) ((char) (column % 26) + 'A') + result;
        }
        return result;
    }

	@Override
    public void setValueAt(Object aValue, Object node, int column)
    {
    	if (node == null)
    	{
    		Logging.log(Logging.WARNING, "Ignored attempt to set value of a null node. " + aValue + " col " + column);
    		return;
    	}
        TreeTableNode aNode = (TreeTableNode) node;
        aNode.setValueAt(aValue, column);
        nodeChanged(aNode);
    }

	@Override
    public Object getValueAt(Object node, int column)
    {
		return node == null ? null : ((TreeTableNode) node).getValueAt(column);
    }
}