radiobuttoncelleditor.java

来自「一个类似QQ的在线通讯聊天软件原码,适合初学者参考学习。」· Java 代码 · 共 64 行

package openicq.gui;

import java.awt.Component;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.*;

/**
 * The <code>RadioButtonCellEditor</code> class is a custom custom cell editor
 * for radio buttons.
 * @author Hansgeorg Schwibbe
 * @copyright 2004
 */
class RadioButtonCellEditor extends DefaultCellEditor implements ItemListener
{
  private JRadioButton radioButton;

  /**
   * Initializes a new instance of the class <code>RadioButtonCellEditor</code>.
   * @param checkBox the check box
   */
  public RadioButtonCellEditor(JCheckBox checkBox)
  {
    super(checkBox);
  }

  /**
   * (non-Javadoc)
   * @see javax.swing.DefaultCellEditor#getTableCellEditorComponent(javax.swing.JTable,
   *      java.lang.Object, boolean, int, int)
   */
  public Component getTableCellEditorComponent(JTable table, Object value,
                                               boolean isSelected, int row,
                                               int column)
  {
    if (value instanceof JRadioButton)
    {
      radioButton = (JRadioButton) value;
      radioButton.addItemListener(this);
      return radioButton;
    }
    return new JLabel(String.valueOf(value));
  }

  /**
   * (non-Javadoc)
   * @see javax.swing.DefaultCellEditor#getCellEditorValue()
   */
  public Object getCellEditorValue()
  {
    radioButton.removeItemListener(this);
    return radioButton;
  }

  /**
   * (non-Javadoc)
   * @see java.awt.event.ItemListener#itemStateChanged(java.awt.event.ItemEvent)
   */
  public void itemStateChanged(ItemEvent e)
  {
    super.fireEditingStopped();
  }
}