iconnode.java

Java中Swing界面库中几个类使用的例子

/*  (swing1.1.1beta2) */ 
package jp.gr.java_conf.tame.swing.tree;

import java.util.*;
import javax.swing.*;
import javax.swing.tree.*;

/**
 * @version 1.1 06/19/99
 */
public class IconNode extends DefaultMutableTreeNode  {

  protected Icon   icon;
  protected String iconName;

  public IconNode() {
    this(null);
  }

  public IconNode(Object userObject) {
    this(userObject, true, null);
  }

  public IconNode(Object userObject, boolean allowsChildren
		       , Icon icon) {
    super(userObject, allowsChildren);
    this.icon = icon;
  }



  public void setIcon(Icon icon) {
    this.icon = icon;
  }
  
  public Icon getIcon() {
    return icon;
  }
  
  public String getIconName() {
    if (iconName != null) {
      return iconName;
    } else {
      String str = userObject.toString();
      int index = str.lastIndexOf(".");
      if (index != -1) {
        return str.substring(++index);
      } else {
        return null;
      }  
    }
  }
  
  public void setIconName(String name) {
    iconName = name;
  }

}