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Java Source | 1998-12-01 | 1.8 KB | 59 lines |
- /*
- * @(#)SampleTreeModel.java 1.5 98/08/26
- *
- * Copyright 1997 by Sun Microsystems, Inc.,
- * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
- * All rights reserved.
- *
- * This software is the confidential and proprietary information
- * of Sun Microsystems, Inc. ("Confidential Information"). You
- * shall not disclose such Confidential Information and shall use
- * it only in accordance with the terms of the license agreement
- * you entered into with Sun.
- */
-
- 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.
- *
- * @version 1.5 08/26/98
- * @author Scott Violet
- */
-
- 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.
- */
- 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);
- }
- }
-