1 /* |
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2 * CDDL HEADER START |
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3 * |
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4 * The contents of this file are subject to the terms of the |
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5 * Common Development and Distribution License (the "License"). |
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6 * You may not use this file except in compliance with the License. |
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7 * |
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8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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9 * or http://www.opensolaris.org/os/licensing. |
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10 * See the License for the specific language governing permissions |
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11 * and limitations under the License. |
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12 * |
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13 * When distributing Covered Code, include this CDDL HEADER in each |
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14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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15 * If applicable, add the following below this CDDL HEADER, with the |
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16 * fields enclosed by brackets "[]" replaced with your own identifying |
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17 * information: Portions Copyright [yyyy] [name of copyright owner] |
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18 * |
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19 * CDDL HEADER END |
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20 */ |
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21 |
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22 /* |
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23 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved. |
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24 */ |
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25 |
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26 package com.oracle.solaris.vp.panels.coreadm.client.swing.path; |
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27 |
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28 import javax.swing.text.*; |
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29 |
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30 @SuppressWarnings({"serial"}) |
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31 public class PathDocument extends DefaultStyledDocument { |
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32 // |
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33 // Inner classes |
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34 // |
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35 |
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36 protected static class TokenSearchResult { |
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37 // The found token, or null if not found |
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38 public String token; |
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39 |
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40 // The index of the found token, or -1 if not found |
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41 public int index = -1; |
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42 } |
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43 |
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44 // |
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45 // Static data |
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46 // |
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47 |
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48 public static final String[] TOKENS = { |
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49 "%d", "%f", "%g", "%m", "%n", "%p", "%t", "%u", "%z", "%%", |
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50 }; |
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51 |
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52 private static int MAX_TOKEN_LENGTH; |
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53 static { |
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54 for (String token : TOKENS) { |
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55 if (token.length() > MAX_TOKEN_LENGTH) { |
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56 MAX_TOKEN_LENGTH = token.length(); |
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57 } |
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58 } |
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59 } |
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60 |
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61 // |
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62 // Instance data |
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63 // |
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64 |
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65 private TokenAttributeSetFactory factory; |
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66 |
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67 // |
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68 // Constructors |
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69 // |
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70 |
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71 public PathDocument(TokenAttributeSetFactory factory) { |
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72 this.factory = factory; |
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73 } |
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74 |
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75 // |
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76 // StyledDocument methods |
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77 // |
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78 |
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79 @Override |
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80 public void insertString(int offset, String str, AttributeSet a) |
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81 throws BadLocationException { |
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82 |
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83 // Remove newlines |
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84 if (str != null) { |
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85 str = str.replace('\n', ' '); |
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86 } |
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87 |
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88 // If offset is in the middle of a token element, move it to the end |
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89 Element element = getCharacterElement(offset); |
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90 if (isToken(element)) { |
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91 offset = element.getStartOffset(); |
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92 } |
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93 |
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94 super.insertString(offset, str, a); |
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95 |
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96 // Define the range to search for tokens |
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97 |
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98 int start = offset; |
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99 for (int i = 0; i < MAX_TOKEN_LENGTH - 1; i++) { |
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100 if (start - 1 < 0 || isPartOfToken(start - 1)) { |
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101 break; |
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102 } |
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103 start--; |
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104 } |
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105 |
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106 int docLength = getLength(); |
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107 int insLength = str.length(); |
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108 int end = offset + insLength; |
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109 for (int i = 0; i < MAX_TOKEN_LENGTH - 1; i++) { |
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110 if (end >= docLength || isPartOfToken(end)) { |
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111 break; |
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112 } |
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113 end++; |
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114 } |
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115 |
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116 try { |
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117 String search = getText(start, end - start); |
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118 // System.out.printf("doc: \"%s\", search: \"%s\" (%d - %d)\n", |
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119 // getText(0, docLength), search, start, end); |
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120 int sOffset = 0; |
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121 while (true) { |
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122 TokenSearchResult result = findToken(search, sOffset); |
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123 if (result.token == null) { |
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124 break; |
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125 } |
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126 |
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127 // System.out.printf("Found \"%s\" within \"%s\" at point %d\n", |
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128 // result.token, search, result.index); |
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129 |
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130 AttributeSet style = factory.getAttributeSet(result.token); |
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131 |
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132 int cStart = start + result.index; |
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133 int cLength = result.token.length(); |
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134 setCharacterAttributes(cStart, cLength, style, true); |
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135 |
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136 // Hack -- JTextPane doesn't always display updated styles, |
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137 // so force an insert/remove |
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138 int cEnd = cStart + cLength; |
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139 super.insertString(cEnd, " ", SimpleAttributeSet.EMPTY); |
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140 super.remove(cEnd, 1); |
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141 |
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142 sOffset = start + result.index + result.token.length(); |
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143 } |
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144 } catch (BadLocationException e) { |
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145 // XXX |
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146 e.printStackTrace(); |
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147 } |
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148 } |
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149 |
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150 @Override |
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151 public void remove(int offset, int length) throws BadLocationException { |
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152 // If the beginning or end of the deleted segment overlaps a token |
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153 // element, remove the entire element |
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154 |
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155 Element element = getCharacterElement(offset); |
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156 if (isToken(element)) { |
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157 int sOffset = element.getStartOffset(); |
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158 if (sOffset != offset) { |
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159 length += offset - sOffset; |
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160 offset = sOffset; |
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161 } |
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162 } |
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163 |
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164 element = getCharacterElement(offset + length - 1); |
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165 if (isToken(element)) { |
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166 length = element.getEndOffset() - offset; |
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167 } |
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168 |
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169 super.remove(offset, length); |
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170 } |
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171 |
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172 // |
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173 // PathDocument methods |
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174 // |
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175 |
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176 public String getText() { |
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177 int start = -1; |
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178 int offset = 0; |
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179 StringBuilder buffer = new StringBuilder(); |
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180 |
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181 try { |
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182 for (int n = getLength(); offset < n; offset++) { |
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183 Element element = getCharacterElement(offset); |
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184 |
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185 if (isToken(element)) { |
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186 if (start != -1) { |
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187 String token = |
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188 getText(start, offset - start).replace("%", "%%"); |
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189 buffer.append(token); |
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190 start = -1; |
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191 } |
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192 |
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193 int end = element.getEndOffset(); |
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194 int length = end - offset; |
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195 buffer.append(getText(offset, length)); |
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196 offset = end - 1; |
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197 } else if (start == -1) { |
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198 start = offset; |
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199 } |
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200 } |
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201 |
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202 if (start != -1) { |
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203 String token = |
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204 getText(start, offset - start).replace("%", "%%"); |
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205 buffer.append(token); |
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206 } |
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207 } catch (BadLocationException ignore) { |
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208 ignore.printStackTrace(); |
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209 } |
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210 |
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211 return buffer.toString(); |
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212 } |
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213 |
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214 // |
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215 // Private methods |
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216 // |
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217 |
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218 private TokenSearchResult findToken(String text, int offset) { |
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219 TokenSearchResult result = new TokenSearchResult(); |
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220 |
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221 for (String token : TOKENS) { |
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222 int i = text.indexOf(token, offset); |
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223 if (i != -1 && (result.index == -1 || i < result.index)) { |
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224 result.index = i; |
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225 result.token = token; |
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226 } |
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227 } |
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228 |
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229 return result; |
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230 } |
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231 |
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232 private boolean isPartOfToken(int offset) { |
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233 Element element = getCharacterElement(offset); |
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234 return isToken(element); |
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235 } |
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236 |
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237 // |
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238 // Static data |
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239 // |
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240 |
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241 protected static boolean isToken(Element element) { |
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242 return element.getName().equals( |
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243 StyleConstants.ComponentElementName); |
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244 } |
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245 } |
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