listcelleditor.java

一个很好的LIBSVM的JAVA源码。对于要研究和改进SVM算法的学者。可以参考。来自数据挖掘工具YALE工具包。

/*
 *  YALE - Yet Another Learning Environment
 *  Copyright (C) 2001-2004
 *      Simon Fischer, Ralf Klinkenberg, Ingo Mierswa, 
 *          Katharina Morik, Oliver Ritthoff
 *      Artificial Intelligence Unit
 *      Computer Science Department
 *      University of Dortmund
 *      44221 Dortmund,  Germany
 *  email: [e-mail]
 *  web:   http://yale.cs.uni-dortmund.de/
 *
 *  This program 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. 
 *
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 *  USA.
 */
package edu.udo.cs.yale.gui;

import edu.udo.cs.yale.operator.parameter.ParameterTypeList;
import edu.udo.cs.yale.operator.Operator;

import javax.swing.AbstractCellEditor;
import javax.swing.JButton;
import javax.swing.JTable;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.Component;
import java.util.List;
import java.util.LinkedList;

/** A cell editor with a button that opens a ListPropertyDialog. Values generated by this
 *  operator are Lists of String pairs. 
 *  @see edu.udo.cs.yale.gui.ListPropertyDialog */
public class ListCellEditor extends AbstractCellEditor implements PropertyCellEditor {

    private JButton button = new JButton("Edit list");
    private ParameterTypeList type;
    private List parameterList = new LinkedList();
    private Operator operator;

    public ListCellEditor(final ParameterTypeList type, final Operator operator) {
	this.type = type;
	this.operator = operator;
	button.setMargin(new java.awt.Insets(0,0,0,0));
	button.setToolTipText(type.getDescription());
	setButtonText();	
	button.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
		    ListPropertyDialog dialog = new ListPropertyDialog(type, parameterList, operator);
		    dialog.show();
		    if (dialog.isOk()) {
			fireEditingStopped();
			setButtonText();
		    } else {
			fireEditingCanceled();
		    }
		}
	    });
    }

    public Object getCellEditorValue() {
	return parameterList;
    }

    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int col) {
	this.parameterList = (List)value;
	setButtonText();
	return button;
    }

    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
	return getTableCellEditorComponent(table, value, isSelected, row, column);
    }

    public boolean useEditorAsRenderer() {
	return true;
    }

    private void setButtonText() {
	button.setText("Edit List ("+parameterList.size()+")");
    }

}