| /* 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; |
| |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.Serializable; |
| |
| /** |
| * TreePath |
| * @author Andrew Selkirk |
| */ |
| public class TreePath implements Serializable |
| { |
| static final long serialVersionUID = 4380036194768077479L; |
| |
| //------------------------------------------------------------- |
| // 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 |