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*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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* KIND, either express or implied. See the License for the
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package com.sun.star.xml.security.uno;
import org.w3c.dom.Document;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeModelEvent;
import javax.swing.tree.TreePath;
import java.util.Enumeration;
import java.util.Vector;
/*
* This adapter converts the current Document (a DOM) into
* a JTree model.
*/
class DomToTreeModelAdapter
implements javax.swing.tree.TreeModel
{
private Document m_document;
private Vector m_listenerList = new Vector();
public DomToTreeModelAdapter(Document document)
{
m_document = document;
}
/*
* Basic TreeModel operations
*/
public Object getRoot()
{
return new AdapterNode(m_document);
}
public boolean isLeaf(Object aNode)
{
boolean rc = true;
/*
* Determines whether the icon shows up to the left.
* Return true for any node with no children.
*/
AdapterNode node = (AdapterNode) aNode;
if (node.childCount() > 0)
{
rc = false;
}
return rc;
}
public int getChildCount(Object parent)
{
AdapterNode node = (AdapterNode) parent;
return node.childCount();
}
public Object getChild(Object parent, int index)
{
AdapterNode node = (AdapterNode) parent;
return node.child(index);
}
public int getIndexOfChild(Object parent, Object child)
{
AdapterNode node = (AdapterNode) parent;
return node.index((AdapterNode) child);
}
public void valueForPathChanged(TreePath path, Object newValue)
{
/*
* Null. We won't be making changes in the GUI
* If we did, we would ensure the new value was really new,
* adjust the model, and then fire a TreeNodesChanged event.
*/
}
public void addTreeModelListener(TreeModelListener listener)
{
if ( listener != null
&& ! m_listenerList.contains( listener ) )
{
m_listenerList.addElement( listener );
}
}
public void removeTreeModelListener(TreeModelListener listener)
{
if ( listener != null )
{
m_listenerList.removeElement( listener );
}
}
public void fireTreeNodesChanged( TreeModelEvent e )
{
Enumeration listeners = m_listenerList.elements();
while ( listeners.hasMoreElements() )
{
TreeModelListener listener =
(TreeModelListener) listeners.nextElement();
listener.treeNodesChanged( e );
}
}
public void fireTreeNodesInserted( TreeModelEvent e )
{
Enumeration listeners = m_listenerList.elements();
while ( listeners.hasMoreElements() )
{
TreeModelListener listener =
(TreeModelListener) listeners.nextElement();
listener.treeNodesInserted( e );
}
}
public void fireTreeNodesRemoved( TreeModelEvent e )
{
Enumeration listeners = m_listenerList.elements();
while ( listeners.hasMoreElements() )
{
TreeModelListener listener =
(TreeModelListener) listeners.nextElement();
listener.treeNodesRemoved( e );
}
}
public void fireTreeStructureChanged( TreeModelEvent e )
{
Enumeration listeners = m_listenerList.elements();
while ( listeners.hasMoreElements() )
{
TreeModelListener listener =
(TreeModelListener) listeners.nextElement();
listener.treeStructureChanged( e );
}
}
}