/*
* Copyright ( c ) 1997 , 2011 , Oracle and / or its affiliates . All rights reserved .
*
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* modification , are permitted provided that the following conditions
* are met :
*
* - Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
*
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* notice , this list of conditions and the following disclaimer in the
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*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission .
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS " AS
* IS " AND ANY EXPRESS OR IMPLIED WARRANTIES , INCLUDING , BUT NOT LIMITED TO ,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified . Additional steps
* required for a production - quality application , such as security checks ,
* input validation and proper error handling , might not be present in
* this sample code .
*/
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;
import javax.swing.tree.DefaultMutableTreeNode;
import java.awt.Color;
/**
* 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 .
*
* @ author Scott Violet
*/
@SuppressWarnings("serial" )
public class SampleTreeModel extends DefaultTreeModel {
/**
* Creates a new instance of SampleTreeModel with newRoot set
* to the root of this model .
*/
public SampleTreeModel(TreeNode newRoot) {
super (newRoot);
}
/**
* Subclassed to message setString ( ) to the changed path item .
*/
@Override
public void valueForPathChanged(TreePath path, Object newValue) {
/* 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);
}
}
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