ListRenderer


1   /*
2   // $Id: //open/mondrian/src/main/mondrian/gui/ListRenderer.java#1 $
3   // This software is subject to the terms of the Common Public License
4   // Agreement, available at the following URL:
5   // http://www.opensource.org/licenses/cpl.html.
6   // Copyright (C) 2002-2007 Julian Hyde and others
7   // All Rights Reserved.
8   // You must accept the terms of that agreement to use this software.
9   */
10  package mondrian.gui;
11  
12  import javax.swing.*;
13  import java.awt.*;
14  
15  /**
16   * <code>ListRenderer</code> ...
17   *
18   * @version $Id: //open/mondrian/src/main/mondrian/gui/ListRenderer.java#1 $
19   */
20  class ListRenderer implements ListCellRenderer {
21      // The original ListCellRenderer we want to override
22      ListCellRenderer std;
23  
24      public ListRenderer(ListCellRenderer override) {
25          if (override == null) {
26              throw new NullPointerException  (
27                      "ListRenderer constructor: default renderer is null");
28          }
29          std = override;
30      }
31  
32      // Override of getListCellRendererComponent.
33      // This is called by the AWT event thread to paint components.
34      public Component getListCellRendererComponent(JList list,
35              Object   value,
36              int index,
37              boolean isSelected,
38              boolean cellHasFocus) {
39          // Ask the standard renderer for what it thinks is right
40          Component c = std.getListCellRendererComponent(list,
41                  value,
42                  index,
43                  isSelected,
44                  cellHasFocus);
45          if (!isSelected) {
46              // Set the background of the returned component to Aqua
47              // striped background, but only for unselected cells;
48              // The standard renderer functions as desired for
49              // highlighted cells.
50              c.setBackground((Color)UIManager.get("ComboBox.background"));
51          }
52          return c;
53      }
54  }
55  
56  // End ListRenderer.java
57
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags