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1   /*
2   Copyright (C) 2000 - 2007 Grid Systems, S.A.
3   
4   This program is free software; you can redistribute it and/or modify
5   it under the terms of the GNU General Public License, version 2, as
6   published by the Free Software Foundation.
7   
8   This program is distributed in the hope that it will be useful,
9   but WITHOUT ANY WARRANTY; without even the implied warranty of
10  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  GNU General Public License for more details.
12  
13  You should have received a copy of the GNU General Public License
14  along with this program; if not, write to the Free Software
15  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16  */
17  
18  /*
19   * Project: KernelConfigurator
20   * Created on 24-feb-2004
21   *
22   * Copyright (c)2003 Grid Systems
23   */
24  package com.gridsystems.config.app;
25  
26  import java.awt.Color;
27  import java.awt.Component;
28  
29  import javax.swing.Icon;
30  import javax.swing.JTree;
31  import javax.swing.tree.DefaultTreeCellRenderer;
32  
33  import com.gridsystems.config.Configurator;
34  import com.gridsystems.config.ConfiguratorView;
35  
36  /**
37   * Specialized version of TreeCellRenderer, able to render a ConfigNode.
38   *
39   * @author <a href="mailto:rruiz@gridsystems.com">Rodrigo Ruiz Aguayo</a>
40   * @version 1.0
41   */
42  public class ConfigNodeCellRenderer extends DefaultTreeCellRenderer {
43  
44    /**
45     * Renders the node, using the node icon if it is an instance of ConfigNode.
46     *
47     * {@inheritDoc}
48     */
49    public Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel,
50                                                  boolean expanded, boolean leaf, int row,
51                                                  boolean hasFocus) {
52  
53      Component c = super.getTreeCellRendererComponent(tree, value, sel, expanded,
54                                                       leaf, row, hasFocus);
55  
56      if (value instanceof ConfigNode) {
57        ConfigNode node = (ConfigNode)value;
58        Icon icon = node.getIcon();
59        if (icon != null) {
60          setIcon(icon);
61        }
62  
63        Configurator cfg = node.getConfigurator();
64        ConfiguratorView view = (cfg == null) ? null : cfg.getView();
65        boolean error = view != null && view.hasErrors();
66        c.setForeground(error ? Color.RED : Color.BLACK);
67      }
68      return c;
69    }
70  
71  }