javaJTreeJCheckBox树复选框详解-创新互联

本文实例为大家分享了java JTree JCheckBox树复选框展示的具体代码，供大家参考，具体内容如下

1.CheckTreeManager.java

public class CheckTreeManager extends MouseAdapter implements TreeSelectionListener 
{ 
 
  private CheckTreeSelectionModel selectionModel = null; 
  
// private JTree tree = new JTree(); 
  private JTree tree = null; 
  
  int hotspot = new JCheckBox().getPreferredSize().width; 
  
  public CheckTreeManager(JTree tree) 
  { 
   this.tree = tree; 
   selectionModel = new CheckTreeSelectionModel(tree.getModel()); 
   tree.setCellRenderer(new CheckTreeCellRenderer(tree.getCellRenderer(), selectionModel)); 
   tree.addMouseListener(this); //鼠标监听 
   selectionModel.addTreeSelectionListener(this); //树选择监听 
  } 
  
  public void mouseClicked(MouseEvent me) 
  { 
   TreePath path = tree.getPathForLocation(me.getX(), me.getY()); 
   if(path==null) 
    return; 
   if(me.getX()>tree.getPathBounds(path).x+hotspot) 
    return; 
   
   boolean selected = selectionModel.isPathSelected(path, true); 
   selectionModel.removeTreeSelectionListener(this); 
   
   try 
   { 
    if(selected) 
     selectionModel.removeSelectionPath(path); 
    else 
     selectionModel.addSelectionPath(path); 
   } 
   finally 
   { 
    selectionModel.addTreeSelectionListener(this); 
    tree.treeDidChange(); 
   } 
  } 
  
  public CheckTreeSelectionModel getSelectionModel() 
  { 
   return selectionModel; 
  } 
  
  public void valueChanged(TreeSelectionEvent e) 
  { 
   tree.treeDidChange(); 
  } 
  
}