1*b1cdbd2cSJim Jagielski /************************************************************** 2*b1cdbd2cSJim Jagielski * 3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one 4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file 5*b1cdbd2cSJim Jagielski * distributed with this work for additional information 6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file 7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the 8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance 9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at 10*b1cdbd2cSJim Jagielski * 11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0 12*b1cdbd2cSJim Jagielski * 13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing, 14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an 15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the 17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations 18*b1cdbd2cSJim Jagielski * under the License. 19*b1cdbd2cSJim Jagielski * 20*b1cdbd2cSJim Jagielski *************************************************************/ 21*b1cdbd2cSJim Jagielski 22*b1cdbd2cSJim Jagielski import java.util.Vector; 23*b1cdbd2cSJim Jagielski import com.sun.star.lang.IndexOutOfBoundsException; 24*b1cdbd2cSJim Jagielski 25*b1cdbd2cSJim Jagielski /** 26*b1cdbd2cSJim Jagielski Base class for all tree nodes. 27*b1cdbd2cSJim Jagielski */ 28*b1cdbd2cSJim Jagielski class AccessibleTreeNode 29*b1cdbd2cSJim Jagielski { 30*b1cdbd2cSJim Jagielski /// The parent node. It is null for the root node. 31*b1cdbd2cSJim Jagielski protected AccessibleTreeNode maParent; 32*b1cdbd2cSJim Jagielski 33*b1cdbd2cSJim Jagielski /// The object to be displayed. 34*b1cdbd2cSJim Jagielski private Object maDisplayObject; 35*b1cdbd2cSJim Jagielski AccessibleTreeNode(Object aDisplayObject, AccessibleTreeNode aParent)36*b1cdbd2cSJim Jagielski public AccessibleTreeNode (Object aDisplayObject, AccessibleTreeNode aParent) 37*b1cdbd2cSJim Jagielski { 38*b1cdbd2cSJim Jagielski maDisplayObject = aDisplayObject; 39*b1cdbd2cSJim Jagielski maParent = aParent; 40*b1cdbd2cSJim Jagielski } 41*b1cdbd2cSJim Jagielski update()42*b1cdbd2cSJim Jagielski public void update () 43*b1cdbd2cSJim Jagielski { 44*b1cdbd2cSJim Jagielski // Empty 45*b1cdbd2cSJim Jagielski } 46*b1cdbd2cSJim Jagielski getParent()47*b1cdbd2cSJim Jagielski public AccessibleTreeNode getParent () 48*b1cdbd2cSJim Jagielski { 49*b1cdbd2cSJim Jagielski return maParent; 50*b1cdbd2cSJim Jagielski } 51*b1cdbd2cSJim Jagielski getDisplayObject()52*b1cdbd2cSJim Jagielski public Object getDisplayObject () 53*b1cdbd2cSJim Jagielski { 54*b1cdbd2cSJim Jagielski return maDisplayObject; 55*b1cdbd2cSJim Jagielski } 56*b1cdbd2cSJim Jagielski getChildCount()57*b1cdbd2cSJim Jagielski public int getChildCount () 58*b1cdbd2cSJim Jagielski { 59*b1cdbd2cSJim Jagielski return 0; 60*b1cdbd2cSJim Jagielski } 61*b1cdbd2cSJim Jagielski getChild(int nIndex)62*b1cdbd2cSJim Jagielski public AccessibleTreeNode getChild (int nIndex) 63*b1cdbd2cSJim Jagielski throws IndexOutOfBoundsException 64*b1cdbd2cSJim Jagielski { 65*b1cdbd2cSJim Jagielski throw new IndexOutOfBoundsException(); 66*b1cdbd2cSJim Jagielski } 67*b1cdbd2cSJim Jagielski getChildNoCreate(int nIndex)68*b1cdbd2cSJim Jagielski public AccessibleTreeNode getChildNoCreate (int nIndex) 69*b1cdbd2cSJim Jagielski throws IndexOutOfBoundsException 70*b1cdbd2cSJim Jagielski { 71*b1cdbd2cSJim Jagielski throw new IndexOutOfBoundsException(); 72*b1cdbd2cSJim Jagielski } 73*b1cdbd2cSJim Jagielski removeChild(int nIndex)74*b1cdbd2cSJim Jagielski public boolean removeChild (int nIndex) 75*b1cdbd2cSJim Jagielski throws IndexOutOfBoundsException 76*b1cdbd2cSJim Jagielski { 77*b1cdbd2cSJim Jagielski throw new IndexOutOfBoundsException(); 78*b1cdbd2cSJim Jagielski } 79*b1cdbd2cSJim Jagielski indexOf(AccessibleTreeNode aNode)80*b1cdbd2cSJim Jagielski public int indexOf (AccessibleTreeNode aNode) 81*b1cdbd2cSJim Jagielski { 82*b1cdbd2cSJim Jagielski return -1; 83*b1cdbd2cSJim Jagielski } 84*b1cdbd2cSJim Jagielski 85*b1cdbd2cSJim Jagielski /** Create a path to this node by first asking the parent for its path 86*b1cdbd2cSJim Jagielski and then appending this object. 87*b1cdbd2cSJim Jagielski */ createPath(java.util.Vector aPath)88*b1cdbd2cSJim Jagielski public void createPath (java.util.Vector aPath) 89*b1cdbd2cSJim Jagielski { 90*b1cdbd2cSJim Jagielski if (maParent != null) 91*b1cdbd2cSJim Jagielski maParent.createPath (aPath); 92*b1cdbd2cSJim Jagielski aPath.add (this); 93*b1cdbd2cSJim Jagielski } 94*b1cdbd2cSJim Jagielski createPath()95*b1cdbd2cSJim Jagielski public Object[] createPath () 96*b1cdbd2cSJim Jagielski { 97*b1cdbd2cSJim Jagielski Vector aPath = new Vector (1); 98*b1cdbd2cSJim Jagielski createPath (aPath); 99*b1cdbd2cSJim Jagielski return aPath.toArray(); 100*b1cdbd2cSJim Jagielski } 101*b1cdbd2cSJim Jagielski isLeaf()102*b1cdbd2cSJim Jagielski public boolean isLeaf() 103*b1cdbd2cSJim Jagielski { 104*b1cdbd2cSJim Jagielski return true; 105*b1cdbd2cSJim Jagielski } 106*b1cdbd2cSJim Jagielski toString()107*b1cdbd2cSJim Jagielski public String toString() 108*b1cdbd2cSJim Jagielski { 109*b1cdbd2cSJim Jagielski return maDisplayObject.toString(); 110*b1cdbd2cSJim Jagielski } 111*b1cdbd2cSJim Jagielski 112*b1cdbd2cSJim Jagielski /** get names of suported actions */ getActions()113*b1cdbd2cSJim Jagielski public String[] getActions () 114*b1cdbd2cSJim Jagielski { 115*b1cdbd2cSJim Jagielski return new String[] {}; 116*b1cdbd2cSJim Jagielski } 117*b1cdbd2cSJim Jagielski 118*b1cdbd2cSJim Jagielski /** perform action */ performAction(int nIndex)119*b1cdbd2cSJim Jagielski public void performAction (int nIndex) 120*b1cdbd2cSJim Jagielski { 121*b1cdbd2cSJim Jagielski } 122*b1cdbd2cSJim Jagielski } 123