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Java > Open Source Codes > org > gjt > jclasslib > browser > detail > constants > ConstantNameAndTypeInfoDetailPane


1 /*
2     This library is free software; you can redistribute it and/or
3     modify it under the terms of the GNU General Public
4     License as published by the Free Software Foundation; either
5     version 2 of the license, or (at your option) any later version.
6 */
7
8 package org.gjt.jclasslib.browser.detail.constants;
9
10 import org.gjt.jclasslib.browser.BrowserServices;
11 import org.gjt.jclasslib.structures.InvalidByteCodeException;
12 import org.gjt.jclasslib.structures.constants.ConstantNameAndTypeInfo;
13 import org.gjt.jclasslib.util.ExtendedJLabel;
14
15 import javax.swing.tree.TreePath JavaDoc;
16
17 /**
18     Detail pane showing a <tt>CONSTANT_NameAndType</tt> constant pool entry.
19  
20     @author <a HREF="mailto:jclasslib@ej-technologies.com">Ingo Kegel</a>
21     @version $Revision: 1.5 $ $Date: 2003/08/18 08:16:34 $
22 */
23 public class ConstantNameAndTypeInfoDetailPane extends AbstractConstantInfoDetailPane {
24
25     // Visual components
26
27     private ExtendedJLabel lblName;
28     private ExtendedJLabel lblNameVerbose;
29     private ExtendedJLabel lblDescriptor;
30     private ExtendedJLabel lblDescriptorVerbose;
31     
32     /**
33         Constructor.
34         @param services the associated browser services.
35      */
36     public ConstantNameAndTypeInfoDetailPane(BrowserServices services) {
37         super(services);
38     }
39     
40     protected void setupLabels() {
41         
42         addDetailPaneEntry(normalLabel("Name:"),
43                            lblName = linkLabel(),
44                            lblNameVerbose = highlightLabel());
45
46         addDetailPaneEntry(normalLabel("Descriptor:"),
47                            lblDescriptor = linkLabel(),
48                            lblDescriptorVerbose = highlightLabel());
49     }
50
51     public void show(TreePath JavaDoc treePath) {
52         
53         int constantPoolIndex = constantPoolIndex(treePath);
54
55         try {
56             ConstantNameAndTypeInfo entry = (ConstantNameAndTypeInfo)services.getClassFile().getConstantPoolEntry(constantPoolIndex, ConstantNameAndTypeInfo.class);
57
58             constantPoolHyperlink(lblName,
59                                   lblNameVerbose,
60                                   entry.getNameIndex());
61         
62             constantPoolHyperlink(lblDescriptor,
63                                   lblDescriptorVerbose,
64                                   entry.getDescriptorIndex());
65         
66         } catch (InvalidByteCodeException ex) {
67             lblNameVerbose.setText(MESSAGE_INVALID_CONSTANT_POOL_ENTRY);
68         }
69
70         super.show(treePath);
71         
72     }
73     
74 }
75
76
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