File Doc Category Size Date Package
SampleTreeModel.java API Doc Example 2241 Sat Sep 12 03:01:00 BST 1998 None

SampleTreeModel

java.lang.Object
- com.sun.java.swing.tree.DefaultTreeModel

public class SampleTreeModel extends com.sun.java.swing.tree.DefaultTreeModel

SampleTreeModel extends JTreeModel to extends valueForPathChanged. This method is called as a result of the user editing a value in the tree. If you allow editing in your tree, are using TreeNodes and the user object of the TreeNodes is not a String, then you're going to have to subclass JTreeModel as this example does.

version: 1.3 09/23/97
author: Scott Violet

Fields Summary
Constructors Summary
public SampleTreeModel(com.sun.java.swing.tree.TreeNode newRoot)
Creates a new instance of SampleTreeModel with newRoot set to the root of this model.
super(newRoot);
Methods Summary
public void valueForPathChanged(com.sun.java.swing.tree.TreePath path, java.lang.Object newValue)
Subclassed to message setString() to the changed path item.
/* Update the user object. */ DefaultMutableTreeNode aNode = (DefaultMutableTreeNode)path.getLastPathComponent(); SampleData sampleData = (SampleData)aNode.getUserObject(); sampleData.setString((String)newValue); /* UUUhhhhh, pretty colors. */ sampleData.setColor(Color.green); /* Since we've changed how the data is to be displayed, message nodeChanged. */ nodeChanged(aNode);