120 lines
2.9 KiB
Java
120 lines
2.9 KiB
Java
/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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import java.util.ArrayList;
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import com.sun.star.lang.IndexOutOfBoundsException;
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/**
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Base class for all tree nodes.
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*/
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class AccessibleTreeNode
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{
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/// The parent node. It is null for the root node.
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protected AccessibleTreeNode maParent;
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/// The object to be displayed.
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private Object maDisplayObject;
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public AccessibleTreeNode (Object aDisplayObject, AccessibleTreeNode aParent)
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{
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maDisplayObject = aDisplayObject;
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maParent = aParent;
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}
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public void update ()
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{
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// Empty
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}
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public AccessibleTreeNode getParent ()
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{
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return maParent;
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}
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public Object getDisplayObject ()
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{
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return maDisplayObject;
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}
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public int getChildCount ()
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{
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return 0;
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}
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public AccessibleTreeNode getChild (int nIndex)
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throws IndexOutOfBoundsException
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{
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throw new IndexOutOfBoundsException();
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}
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public AccessibleTreeNode getChildNoCreate (int nIndex)
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throws IndexOutOfBoundsException
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{
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throw new IndexOutOfBoundsException();
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}
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public boolean removeChild (int nIndex)
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throws IndexOutOfBoundsException
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{
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throw new IndexOutOfBoundsException();
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}
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public int indexOf (AccessibleTreeNode aNode)
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{
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return -1;
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}
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/** Create a path to this node by first asking the parent for its path
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and then appending this object.
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*/
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public void createPath (java.util.List<AccessibleTreeNode> aPath)
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{
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if (maParent != null)
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maParent.createPath (aPath);
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aPath.add (this);
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}
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public Object[] createPath ()
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{
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ArrayList<AccessibleTreeNode> aPath = new ArrayList<AccessibleTreeNode> (1);
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createPath (aPath);
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return aPath.toArray();
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}
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public boolean isLeaf()
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{
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return true;
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}
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public String toString()
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{
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return maDisplayObject.toString();
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}
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/** get names of suported actions */
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public String[] getActions ()
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{
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return new String[] {};
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}
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/** perform action */
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public void performAction (int nIndex)
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{
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}
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}
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