1 通过Java Swing实现的一个三态树组件，包括选择、去选择、半选择等状态，适合网管等C/S结构的软件

2 代码是整合完善多个版本/多位大侠的工作后，输出的一个较为满意的版本，还有很多值得优化的空间，欢迎大家修改完善。

3 大家在使用时放到一个包里即可运行, 三态树的节点为任意的Object，可以根据具体情况设置对象类型，可以很好的进行多态等处理, 代码简洁, Cell可以设置属性，可以根据具体情况扩展

/**
*

Title:

Description:

Copyright: Copyright (c) 2007

Company:

int iState;
Object filterObject;
private String attribute = null;

public FilterTreeCell(Object filterObject, int state)
{
iState = state;
this.filterObject = filterObject;
}

public FilterTreeCell(Object filterObject)
{
this(filterObject, NONE_SELECT);
}

public FilterTreeCell()
{
this(new String(), NONE_SELECT);
}

public Object getFilterObject()
{
return filterObject;
}

public void setFilterObject(Object filterObject)
{
this.filterObject = filterObject;
}

public String toString()
{
return filterObject.toString();
}

public void changeState()
{
if (iState == PART_SELECT || iState == ALL_SELECT)
{
changeState(NONE_SELECT);
}
else if (NONE_SELECT == iState)
{
changeState(ALL_SELECT);
}
}

public void changeState(int state)
{
if (iState == state)
{
return;
}
else
{
iState = state;
return;
}
}

public int getState()
{
return iState;
}

public Object clone()
{
FilterTreeCell newCell = null;

try
{
newCell = (FilterTreeCell)super.clone();
newCell.changeState(getState());
}
catch (Exception e)
{}

return newCell;
}

public boolean equals(Object obj)
{
if (obj instanceof FilterTreeCell)
{
return filterObject.equals( ( (FilterTreeCell) obj).filterObject);
}
else
{
return false;
}
}

/**
* @return Returns the attribute.
*/
public String getAttribute()
{
return attribute;
}

/**
* @param attribute The attribute to set.
*/
public void setAttribute(String attribute)
{
this.attribute = attribute;
}
}

import java.awt.*;
import javax.swing.*;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;

/**
*

Title:

Description:

Copyright: Copyright (c) 2007

Company:

public class FilterTreeCellRenderer
extends DefaultTreeCellRenderer
{
private JLabel label = new JLabel();
private JPanel panel = new JPanel();
private JCheckBox checkBox = new JCheckBox();
private Icon allSelectIcon = new ImageIcon(getClass().getResource("all.gif"));
private Icon partSelectIcon = new ImageIcon(getClass().getResource("part.gif"));
private Icon noneSelectIcon = new ImageIcon(getClass().getResource("none.gif"));

public FilterTreeCellRenderer()
{
setOpenIcon(null);
setClosedIcon(null);
setLeafIcon(null);