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1 /*
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2 * Copyright 2000-2003 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.ui;
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26
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27 import java.awt.*;
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28 import java.awt.font.*;
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29 import java.awt.geom.*;
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30 import java.util.*;
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31
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32 import sun.jvm.hotspot.debugger.*;
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33 import sun.jvm.hotspot.utilities.*;
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34
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35 /** This can be extended, along with AnnotatedMemoryPanel, to be an
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36 arbitrarily complex mechanism, supporting user interaction,
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37 etc. */
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38
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39 public class Annotation {
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40 private Interval interval;
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41 // List<String>
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42 private java.util.List strings;
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43 // List<Integer>
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44 private java.util.List heights;
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45 private Color baseColor;
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46 private int width;
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47 private int height;
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48 private int x;
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49 private int y;
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50
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51 /** The Annotation can handle the sense of lowAddress and
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52 highAddress being swapped. */
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53 public Annotation(Address lowAddress,
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54 Address highAddress,
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55 String s) {
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56 strings = new ArrayList();
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57 heights = new ArrayList();
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58 for (StringTokenizer tok = new StringTokenizer(s, "\n"); tok.hasMoreTokens(); ) {
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59 strings.add(tok.nextToken());
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60 }
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61 if (AddressOps.lessThan(highAddress, lowAddress)) {
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62 Address temp = lowAddress;
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63 lowAddress = highAddress;
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64 highAddress = temp;
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65 }
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66 interval = new Interval(lowAddress, highAddress);
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67 }
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68
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69 public Interval getInterval() {
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70 return interval;
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71 }
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72
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73 public Address getLowAddress() {
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74 return (Address) getInterval().getLowEndpoint();
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75 }
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76
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77 public Address getHighAddress() {
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78 return (Address) getInterval().getHighEndpoint();
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79 }
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80
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81 /** Draw the annotation at its current (x, y) position with its
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82 current color */
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83 public void draw(Graphics g) {
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84 g.setColor(baseColor);
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85 int tmpY = y;
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86 for (int i = 0; i < strings.size(); i++) {
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87 String s = (String) strings.get(i);
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88 Integer h = (Integer) heights.get(i);
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89 g.drawString(s, x, tmpY);
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90 tmpY += h.intValue();
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91 }
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92 }
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93
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94 /** Sets the base color of this annotation. The annotation may
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95 render sub-portions in a different color if desired. */
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96 public void setColor(Color c) {
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97 this.baseColor = c;
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98 }
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99
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100 /** Returns the base color of this annotation. */
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101 public Color getColor() {
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102 return baseColor;
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103 }
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104
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105 /** Computes width and height for this Annotation. Retrieve the
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106 computed information using getWidth() and getHeight(). Separated
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107 because the width and height only need to be recomputed if the
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108 font changes. */
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109 public void computeWidthAndHeight(Graphics g) {
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110 width = 0;
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111 height = 0;
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112 heights.clear();
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113 for (Iterator iter = strings.iterator(); iter.hasNext(); ) {
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114 String s = (String) iter.next();
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115 Rectangle2D bounds = GraphicsUtilities.getStringBounds(s, g);
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116 width = Math.max(width, (int) bounds.getWidth());
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117 height += (int) bounds.getHeight();
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118 heights.add(new Integer((int) bounds.getHeight()));
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119 }
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120 }
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121
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122 public int getWidth() {
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123 return width;
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124 }
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125
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126 public int getHeight() {
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127 return height;
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128 }
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129
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130 /** Set the x and y position of this annotation */
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131 public void setXAndY(int x, int y) {
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132 this.x = x; this.y = y;
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133 }
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134
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135 public void setX(int x) {
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136 this.x = x;
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137 }
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138
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139 public int getX() {
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140 return x;
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141 }
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142
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143 public void setY(int y) {
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144 this.y = y;
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145 }
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146
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147 public int getY() {
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148 return y;
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149 }
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150
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151 public Rectangle getBounds() {
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152 return new Rectangle(x, y, width, height);
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153 }
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154 public String toString() {
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155 String result = "Annotation: lowAddr: " + getLowAddress() + " highAddr: " + getHighAddress() + " strings: " + strings.size();
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156 for (int i = 0; i < strings.size(); i++) {
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157 result += "\n" + (String) strings.get(i);
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158 }
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159 return result;
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160 }
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161 }
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