/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.console.navtree;
import java.awt.Component;
import java.net.URL;
import java.util.HashMap;
import javax.swing.ImageIcon;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
/**
* Tree cell rendered. Can display another icon if available in the
* plugin description.
*
* @see org.jboss.console.navtree.AdminTreeBrowser
*
* @author <a href="mailto:sacha.labourey@cogito-info.ch">Sacha Labourey</a>.
* @version $Revision: 57191 $
*
* <p><b>Revisions:</b>
*
* <p><b>20 decembre 2002 Sacha Labourey:</b>
* <ul>
* <li> First implementation </li>
* </ul>
*/
public class TreeCellRenderer extends DefaultTreeCellRenderer
{
protected TreeContext ctx = null;
protected static HashMap cache = new HashMap ();
public TreeCellRenderer (TreeContext ctx)
{
super();
this.ctx = ctx;
}
public Component getTreeCellRendererComponent(
JTree tree,
Object value,
boolean sel,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus) {
super.getTreeCellRendererComponent(
tree, value, sel,
expanded, leaf, row,
hasFocus);
if (value instanceof NodeWrapper)
{
NodeWrapper node = (NodeWrapper)value;
String targetUrl = node.getIconUrl ();
ImageIcon img = (ImageIcon)cache.get( targetUrl );
if (img != null)
{
setIcon (img);
}
else
{
URL target = null;
try { target = new URL(this.ctx.localizeUrl(targetUrl)); } catch (Exception ignored) {}
if (target != null)
{
try
{
img = new ImageIcon(target);
cache.put (targetUrl, img);
setIcon (img);
}
catch (Exception tobad) {}
}
}
String desc = node.getDescription ();
if (desc != null)
{
setToolTipText (desc);
}
}
return this;
}
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
public TreeCellRenderer ()
{
}
// Public --------------------------------------------------------
// Z implementation ----------------------------------------------
// Y overrides ---------------------------------------------------
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}
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