/*
 * Copyright 1998-1999 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package com.sun.tools.example.debug.gui;

import javax.swing.*;
import javax.swing.tree.*;

public class SingleLeafTreeSelectionModel extends DefaultTreeSelectionModel {

    SingleLeafTreeSelectionModel() {
        super();
        selectionMode = SINGLE_TREE_SELECTION;
    }

    public void setSelectionPath(TreePath path) {
        if(((TreeNode)(path.getLastPathComponent())).isLeaf()) {
            super.setSelectionPath(path);
        }
    }

    public void setSelectionPaths(TreePath[] paths) {
        // Only look at first path, as all others will be
        // ignored anyway in single tree selection mode.
        if(((TreeNode)(paths[0].getLastPathComponent())).isLeaf()) {
            super.setSelectionPaths(paths);
        }
    }

    public void addSelectionPath(TreePath path) {
        if(((TreeNode)(path.getLastPathComponent())).isLeaf()) {
            super.setSelectionPath(path);
        }
    }

    public void addSelectionPaths(TreePath[] paths) {
        // Only look at first path, as all others will be
        // ignored anyway in single tree selection mode.
        if(((TreeNode)(paths[0].getLastPathComponent())).isLeaf()) {
            super.addSelectionPaths(paths);
        }
    }
}