106 lines
3.0 KiB
Java
106 lines
3.0 KiB
Java
/*
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* Copyright (c) 2003, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 4696499
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* @summary new tree model asked about nodes of previous tree model
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* @run main bug4696499
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*/
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import java.util.ArrayList;
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import javax.swing.JTree;
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import javax.swing.event.TreeModelListener;
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import javax.swing.tree.DefaultMutableTreeNode;
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import javax.swing.tree.TreeModel;
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import javax.swing.tree.TreeNode;
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import javax.swing.tree.TreePath;
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public class bug4696499 {
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public static void main(String[] args) throws Exception {
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JTree tree = new JTree();
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TreeModel model = new MyModel();
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tree.setModel(model);
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tree.setSelectionRow(1);
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model = new MyModel();
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tree.setModel(model);
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}
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}
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class MyModel implements TreeModel {
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private Object root = "Root";
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private ArrayList listeners = new ArrayList();
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private TreeNode ONE;
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static int next = 1;
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MyModel() {
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ONE = new DefaultMutableTreeNode(next);
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next *= 2;
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}
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public void addTreeModelListener(TreeModelListener l) {
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listeners.add(l);
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}
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public void removeTreeModelListener(TreeModelListener l) {
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listeners.remove(l);
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}
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public void valueForPathChanged(TreePath tp, Object newValue) {
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}
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public Object getRoot() {
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return root;
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}
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public boolean isLeaf(Object o) {
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return o == ONE;
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}
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public int getIndexOfChild(Object parent, Object child) {
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if (parent != root || child != ONE) {
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throw new RuntimeException("This method is called with the child " +
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"of the previous tree model");
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}
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return 0;
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}
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public int getChildCount(Object o) {
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if (o == root) {
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return 1;
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}
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if (o == ONE) {
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return 0;
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}
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throw new IllegalArgumentException(o.toString());
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}
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public Object getChild(Object o, int index) {
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if (o != root || index != 0) {
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throw new IllegalArgumentException(o + ", " + index);
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}
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return ONE;
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}
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}
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