ColumnListCellRenderer


1   /*
2    * The contents of this file are subject to the terms of the Common Development
3    * and Distribution License (the License). You may not use this file except in
4    * compliance with the License.
5    * 
6    * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7    * or http://www.netbeans.org/cddl.txt.
8    * 
9    * When distributing Covered Code, include this CDDL Header Notice in each file
10   * and include the License file at http://www.netbeans.org/cddl.txt.
11   * If applicable, add the following below the CDDL Header, with the fields
12   * enclosed by brackets [] replaced by your own identifying information:
13   * "Portions Copyrighted [year] [name of copyright owner]"
14   * 
15   * The Original Software is NetBeans. The Initial Developer of the Original
16   * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
17   * Microsystems, Inc. All Rights Reserved.
18   */
19  
20  package org.netbeans.modules.xml.xam.ui.column;
21  
22  import java.awt.Component  ;
23  import javax.swing.JComponent  ;
24  import javax.swing.JList  ;
25  import org.netbeans.modules.xml.xam.ui.cookies.CountChildrenCookie;
26  import org.openide.awt.HtmlRenderer;
27  import org.openide.explorer.view.NodeRenderer;
28  import org.openide.explorer.view.Visualizer;
29  import org.openide.nodes.Node;
30  
31  /**
32   * Renders the components in the list view.
33   *
34   * @author  Nathan Fiedler
35   */
36  public class ColumnListCellRenderer extends NodeRenderer {
37      private static final long serialVersionUID = 1L;
38  
39      public ColumnListCellRenderer() {
40          super();
41      }
42  
43      public Component   getListCellRendererComponent(JList   list,
44              Object   value, int index, boolean selected, boolean focused) {
45          Component   c = super.getListCellRendererComponent(
46                  list, value, index, selected, focused);
47          if (c instanceof JComponent  ) {
48              // Add our child indicator to the node renderer.
49              // Testing if the value is a leaf is useless as the nodes
50              // usually have non-leaf Children instances.
51              Node node = Visualizer.findNode(value);
52              boolean hasChildren = true;
53              CountChildrenCookie ccc = (CountChildrenCookie) node.getCookie(
54                          CountChildrenCookie.class);
55              if (ccc != null) {
56                  hasChildren = ccc.getChildCount() > 0;
57              }
58              ArrowBorder border = new ArrowBorder(hasChildren);
59              JComponent   jc = (JComponent  ) c;
60              jc.setBorder(border);
61          }
62          if (c instanceof HtmlRenderer.Renderer) {
63              // Prefer the ... over simply clipping the label.
64              HtmlRenderer.Renderer hr = (HtmlRenderer.Renderer) c;
65              hr.setRenderStyle(HtmlRenderer.STYLE_TRUNCATE);
66          }
67          return c;
68      }
69  }
70
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