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comparison agent/src/share/classes/sun/jvm/hotspot/bugspot/RegisterPanel.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.bugspot;
26
27 import java.awt.*;
28 import java.util.*;
29 import javax.swing.*;
30 import javax.swing.table.*;
31
32 import sun.jvm.hotspot.debugger.*;
33
34 /** Displays registers in a window. FIXME: this will need more work to
35 understand and handle register windows. */
36
37 public class RegisterPanel extends JPanel {
38 private java.util.List/*<RegisterInfo>*/ registers;
39 private AbstractTableModel dataModel;
40 private boolean valid;
41 private boolean editable;
42 private String nullAddressString;
43 private ThreadProxy curThread;
44 private JTable table;
45
46 static class RegisterInfo {
47 private String name;
48 private Address value;
49
50 RegisterInfo(String name, Address value) {
51 this.name = name;
52 this.value = value;
53 }
54
55 String getName() { return name; }
56 Address getValue() { return value; }
57 }
58
59 public RegisterPanel() {
60 super();
61
62 registers = new ArrayList();
63
64 dataModel = new AbstractTableModel() {
65 public int getColumnCount() { return 2; }
66 public int getRowCount() { return registers.size(); }
67 public String getColumnName(int col) {
68 switch (col) {
69 case 0:
70 return "Register Name";
71 case 1:
72 return "Register Value";
73 default:
74 throw new RuntimeException("Index " + col + " out of bounds");
75 }
76 }
77 public Object getValueAt(int row, int col) {
78 RegisterInfo info = (RegisterInfo) registers.get(row);
79
80 switch (col) {
81 case 0:
82 return info.getName();
83 case 1:
84 if (valid) {
85 Address val = info.getValue();
86 if (val != null) {
87 return val;
88 } else {
89 return nullAddressString;
90 }
91 } else {
92 return "-";
93 }
94 default:
95 throw new RuntimeException("Index (" + col + ", " + row + ") out of bounds");
96 }
97 }
98 public boolean isCellEditable(int row, int col) {
99 if (col == 0) return false;
100 if (!valid) return false;
101 if (curThread == null) return false;
102 if (!curThread.canSetContext()) return false;
103
104 // FIXME: add listener to watch for register changes
105 // return true;
106 return false;
107 }
108 };
109
110 // Build user interface
111 setLayout(new BorderLayout());
112 table = new JTable(dataModel);
113 table.setCellSelectionEnabled(true);
114 table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
115 table.setDragEnabled(true);
116 JTableHeader header = table.getTableHeader();
117 header.setReorderingAllowed(false);
118 JScrollPane scrollPane = new JScrollPane(table);
119 add(scrollPane, BorderLayout.CENTER);
120 }
121
122
123 /** Updates the register panel with the register set from the
124 specified thread. Call this when the process has been suspended
125 and the current thread has been set. FIXME: this interface will
126 need to change to support register windows. */
127 public void update(ThreadProxy curThread) {
128 this.curThread = curThread;
129 ThreadContext context = curThread.getContext();
130 editable = curThread.canSetContext();
131 registers.clear();
132 for (int i = 0; i < context.getNumRegisters(); i++) {
133 String name = context.getRegisterName(i);
134 Address addr = context.getRegisterAsAddress(i);
135 if ((nullAddressString == null) && (addr != null)) {
136 String addrStr = addr.toString();
137 StringBuffer buf = new StringBuffer();
138 buf.append("0x");
139 int len = addrStr.length() - 2;
140 for (int j = 0; j < len; j++) {
141 buf.append("0");
142 }
143 nullAddressString = buf.toString();
144 }
145 registers.add(new RegisterInfo(name, addr));
146 }
147 valid = true;
148 SwingUtilities.invokeLater(new Runnable() {
149 public void run() {
150 dataModel.fireTableDataChanged();
151 }
152 });
153 }
154
155 /** Clears the registers' values. Call this when the processs has
156 been resumed. */
157 public void clear() {
158 valid = false;
159 nullAddressString = null;
160 SwingUtilities.invokeLater(new Runnable() {
161 public void run() {
162 dataModel.fireTableDataChanged();
163 }
164 });
165 }
166
167 public void setFont(Font font) {
168 super.setFont(font);
169 if (table != null) {
170 table.setFont(font);
171 }
172 }
173 }