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+/* TreePath.java --
+ Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.swing.tree;
+
+// Imports
+import java.io.*;
+
+/**
+ * TreePath
+ * @author Andrew Selkirk
+ */
+public class TreePath implements Serializable {
+
+ //-------------------------------------------------------------
+ // Variables --------------------------------------------------
+ //-------------------------------------------------------------
+
+ /**
+ * path
+ */
+ private Object[] path = null;
+
+
+ //-------------------------------------------------------------
+ // Initialization ---------------------------------------------
+ //-------------------------------------------------------------
+
+ /**
+ * Constructor TreePath
+ * @param path TODO
+ */
+ public TreePath(Object[] path) {
+
+ // Create Path
+ this.path = new Object[path.length];
+ System.arraycopy(path, 0, this.path, 0, path.length);
+
+ } // TreePath()
+
+ /**
+ * Constructor TreePath
+ * @param element TODO
+ */
+ public TreePath(Object element) {
+
+ // Create Path
+ path = new Object[1];
+ path[0] = element;
+
+ } // TreePath()
+
+ /**
+ * Constructor TreePath
+ * @param path TODO
+ * @param element TODO
+ */
+ protected TreePath(TreePath path, Object element) {
+
+ // Variables
+ Object[] treepath;
+
+ // Get Tree Path
+ treepath = path.getPath();
+
+ // Create Tree Path
+ this.path = new Object[treepath.length + 1];
+ System.arraycopy(treepath, 0, this.path, 0, treepath.length);
+ this.path[treepath.length] = element;
+
+ } // TreePath()
+
+ /**
+ * Constructor TreePath
+ * @param path TODO
+ * @param length TODO
+ */
+ protected TreePath(Object[] path, int length) {
+
+ // Create Path
+ this.path = new Object[length];
+ System.arraycopy(path, 0, this.path, 0, length);
+
+ } // TreePath()
+
+ /**
+ * Constructor TreePath
+ */
+ protected TreePath() {
+ path = new Object[0];
+ } // TreePath()
+
+
+ //-------------------------------------------------------------
+ // Methods ----------------------------------------------------
+ //-------------------------------------------------------------
+
+ /**
+ * hashCode
+ * @returns int
+ */
+ public int hashCode() {
+ return getLastPathComponent().hashCode();
+ } // hashCode()
+
+ /**
+ * equals
+ * @param object TODO
+ * @returns boolean
+ */
+ public boolean equals(Object object) {
+
+ // Variables
+ Object[] treepath;
+ int index;
+
+ // Check for TreePath
+ if (object instanceof TreePath) {
+
+ // Get Path Elements
+ treepath = ((TreePath) object).getPath();
+
+ // Check length
+ if (treepath.length != path.length) {
+ return false;
+ } // if
+
+ // Check Elements
+ for (index = 0; index < path.length; index++) {
+ if (treepath[index] != path[index]) {
+ return false;
+ } // if
+ } // for
+
+ // Tree Path's are equals
+ return true;
+
+ } // if
+
+ // Unequal
+ return false;
+
+ } // equals()
+
+ /**
+ * toString
+ * @returns String
+ */
+ public String toString() {
+ return null; // TODO
+ } // toString()
+
+ /**
+ * writeObject
+ * @param value0 TODO
+ * @exception IOException TODO
+ */
+ private void writeObject(ObjectOutputStream value0) throws IOException {
+ // TODO
+ } // writeObject()
+
+ /**
+ * readObject
+ * @param value0 TODO
+ * @exception IOException TODO
+ * @exception ClassNotFoundException TODO
+ */
+ private void readObject(ObjectInputStream value0) throws IOException, ClassNotFoundException {
+ // TODO
+ } // readObject()
+
+ /**
+ * getPath
+ * @returns Object[]
+ */
+ public Object[] getPath() {
+ return path;
+ } // getPath()
+
+ /**
+ * getLastPathComponent
+ * @returns Object
+ */
+ public Object getLastPathComponent() {
+ return path[path.length - 1];
+ } // getLastPathComponent()
+
+ /**
+ * getPathCount
+ * @returns int
+ */
+ public int getPathCount() {
+ return path.length;
+ } // getPathCount()
+
+ /**
+ * getPathComponent
+ * @param position TODO
+ * @returns Object
+ */
+ public Object getPathComponent(int position) {
+ return path[position];
+ } // getPathComponent()
+
+ /**
+ * isDescendant
+ * @param path TODO
+ * @returns boolean
+ */
+ public boolean isDescendant(TreePath path) {
+
+ // Variables
+ Object[] treepath;
+ int index;
+ int index2;
+
+ // Get Descendant path
+ treepath = path.getPath();
+
+ // Locate Start Index
+ index = 0;
+ index2 = 0;
+ while (treepath[index] != this.path[index2]) {
+ index++;
+ } // while
+
+ // Verify Paths
+ while (treepath[index] == this.path[index2]) {
+ index++;
+ index2++;
+ } // while
+
+ // Check for descendant
+ if (index2 != this.path.length) {
+ return false;
+ } // if
+
+ // Is Descendant
+ return true;
+
+ } // isDescendant()
+
+ /**
+ * pathByAddingChild
+ * @param element TODO
+ * @returns TreePath
+ */
+ public TreePath pathByAddingChild(Object element) {
+ return new TreePath(this, element);
+ } // pathByAddingChild()
+
+ /**
+ * getParentPath
+ * @returns TreePath
+ */
+ public TreePath getParentPath() {
+ return new TreePath(this.getPath(), path.length - 1);
+ } // getParentPath()
+
+
+} // TreePath
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