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