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JSAMPLES.Z
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SampleTreeModel.java
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1998-05-08
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/*
* @(#)SampleTreeModel.java 1.3 97/09/23
*
* Copyright (c) 1997 Sun Microsystems, Inc. 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.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
* SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
* THIS SOFTWARE OR ITS DERIVATIVES.
*
*/
import com.sun.java.swing.tree.DefaultTreeModel;
import com.sun.java.swing.tree.TreeNode;
import com.sun.java.swing.tree.TreePath;
import com.sun.java.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 1.3 09/23/97
* @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);
}
}