mosgi/console.gui/src/main/java/org/apache/felix/mosgi/console/gui/NodeCellRenderer.java

/* 
 * 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
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.    
*/
package org.apache.felix.mosgi.console.gui;

import org.osgi.framework.BundleContext;
import java.awt.Component;
import java.awt.Toolkit;
import javax.swing.ImageIcon;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultMutableTreeNode;

public class NodeCellRenderer extends DefaultTreeCellRenderer {

  private ImageIcon iconConnected;
  private ImageIcon iconStopped;
  private NodesTree nodesTree;

  public NodeCellRenderer(BundleContext m_context, NodesTree nt){
    this.iconConnected = new ImageIcon(Toolkit.getDefaultToolkit().getImage(m_context.getBundle().getResource("images/ServerRunning.gif")));
    this.iconStopped = new ImageIcon(Toolkit.getDefaultToolkit().getImage(m_context.getBundle().getResource("images/ServerBlocked.gif")));
    this.nodesTree = nt;
  }

  public Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus) {
    Object o = ((DefaultMutableTreeNode) value).getUserObject();
    if ( !o.equals(NodesTree.TOP_NAME) ) {
      Gateway g = (Gateway) o;
      super.getTreeCellRendererComponent(tree, g.getNickname(), sel, expanded, leaf, row, hasFocus);
      if ( g.isConnected() ) {
        setIcon(iconConnected);
      } else {
        setIcon(iconStopped);
      }
      setToolTipText(g.getToolTipText());
    } else {
      super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus);
    }
    return this;
  }

}