001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package threaddemo.views.looktree;
043:
044: import javax.swing.tree.TreePath;
045:
046: /**
047: * Path from root to a lower "bottom" node in the look tree.
048: * @author Jesse Glick
049: */
050: public final class LookTreePath extends TreePath {
051:
052: private final LookTreeNode bottom;
053:
054: public LookTreePath(LookTreeNode node) {
055: bottom = node;
056: }
057:
058: public Object[] getPath() {
059: int c = getPathCount();
060: Object[] path = new Object[c];
061: LookTreeNode n = bottom;
062: for (int i = c - 1; i >= 0; i--) {
063: path[i] = n;
064: n = n.getParent();
065: }
066: return path;
067: }
068:
069: public int getPathCount() {
070: LookTreeNode n = bottom;
071: int i = 0;
072: while (n != null) {
073: i++;
074: n = n.getParent();
075: }
076: return i;
077: }
078:
079: public Object getPathComponent(int x) {
080: int c = getPathCount();
081: LookTreeNode n = bottom;
082: for (int i = 0; i < c - x - 1; i++) {
083: n = n.getParent();
084: }
085: return n;
086: }
087:
088: public TreePath pathByAddingChild(Object child) {
089: return new LookTreePath((LookTreeNode) child);
090: }
091:
092: public boolean equals(Object o) {
093: return (o instanceof LookTreePath)
094: && ((LookTreePath) o).bottom == bottom;
095: }
096:
097: public int hashCode() {
098: return bottom.hashCode();
099: }
100:
101: public Object getLastPathComponent() {
102: return bottom;
103: }
104:
105: public TreePath getParentPath() {
106: LookTreeNode p = bottom.getParent();
107: if (p != null) {
108: return new LookTreePath(p);
109: } else {
110: return null;
111: }
112: }
113:
114: }
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