comboboxcell.java

一个用于排队系统仿真的开源软件,有非常形象的图象仿真过程!

/**    
  * Copyright (C) 2006, Laboratorio di Valutazione delle Prestazioni - Politecnico di Milano

  * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
  
package jmt.gui.exact.table;

import javax.swing.*;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
 * Created by IntelliJ IDEA.
 * User: OrsotronIII
 * Date: 8-mar-2005
 * Time: 8.41.48
 * This class allows multiple-choice table cells to be rendered as combobox instead of
 * simple text fields. This gives users a more understandable view of a table GUI.
 */
public class ComboBoxCell
        extends DefaultCellEditor
        implements TableCellRenderer, TableCellEditor, ActionListener {

    private JComboBox jcb;

    public ComboBoxCell(Object[] valueSet){
        super(new JComboBox(valueSet));
        jcb = (JComboBox)getComponent();
        jcb.setBackground(Color.WHITE);
        jcb.addActionListener(this);
    }

    public Component getTableCellRendererComponent(JTable table, Object value,
                                                   boolean isSelected, boolean hasFocus,
                                                   int row, int column) {
        jcb.setSelectedItem(value);
        if(isSelected && !hasFocus){
            jcb.setBackground(table.getSelectionBackground());
            jcb.setForeground(table.getSelectionForeground());
        }else{
            jcb.setBackground(table.getBackground());
            jcb.setForeground(table.getForeground());
        }
        return jcb;
    }


    /**Returns combo box contained into this renderer. This provides further customization
     * capabilities.
     * @return :ComboBox to be rendered.
     * */
    public JComboBox getComboBox(){
        return (JComboBox) super.getComponent();
    }

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

    public void actionPerformed(ActionEvent e) {
        fireEditingStopped();
    }


}