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annotate org.eclipse.text/src/org/eclipse/jface/text/link/LinkedPosition.d @ 14:5feec68b4556

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First run of automatic package imports
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:41:58 +0100
parents bc29606a740c
children
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2006 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.jface.text.link.LinkedPosition;
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14 import org.eclipse.jface.text.link.LinkedModeModel;
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15 import org.eclipse.jface.text.link.LinkedModeManager;
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16 import org.eclipse.jface.text.link.ILinkedModeListener;
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17 import org.eclipse.jface.text.link.LinkedPositionGroup;
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18 import org.eclipse.jface.text.link.InclusivePositionUpdater;
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22 import java.lang.all;
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23 import java.util.Set;
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26 import org.eclipse.core.runtime.Assert;
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27 import org.eclipse.jface.text.BadLocationException;
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28 import org.eclipse.jface.text.DocumentEvent;
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29 import org.eclipse.jface.text.IDocument;
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30 import org.eclipse.jface.text.Position;
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31
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32 /**
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33 * A <code>Position</code> on a document that knows which document it is
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34 * registered with and has a sequence number for tab stops.
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35 * <p>
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36 * Clients may extend this class.
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37 * </p>
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38 * @since 3.0
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39 */
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40 public class LinkedPosition : Position {
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41 alias Position.overlapsWith overlapsWith;
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42 /** The document this position belongs to. */
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43 private IDocument fDocument;
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44 private int fSequenceNumber;
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45
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46 /**
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47 * Creates a new instance.
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48 *
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49 * @param document the document
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50 * @param offset the offset of the position
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51 * @param length the length of the position
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52 * @param sequence the iteration sequence rank
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53 */
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54 public this(IDocument document, int offset, int length, int sequence) {
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55 super(offset, length);
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56 Assert.isNotNull(cast(Object)document);
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57 fDocument= document;
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58 fSequenceNumber= sequence;
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59 }
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60
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61 /**
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62 * Creates a new instance. Equivalent to calling
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63 * <code>LinkedPosition(document, offset, length, LinkedPositionGroup.NO_STOP)</code>
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64 *
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65 * @param document the document
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66 * @param offset the offset of the position
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67 * @param length the length of the position
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68 */
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69 public this(IDocument document, int offset, int length) {
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70 this(document, offset, length, LinkedPositionGroup.NO_STOP);
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71 }
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72
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73 /**
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74 * @return Returns the document.
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75 */
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76 public IDocument getDocument() {
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77 return fDocument;
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78 }
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79
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80 /*
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81 * @see org.eclipse.jface.text.Position#equals(java.lang.Object)
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82 */
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83 public bool equals(Object other) {
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84 if ( cast(LinkedPosition)other ) {
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85 LinkedPosition p= cast(LinkedPosition) other;
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86 return p.offset is offset && p.length is length && p.fDocument is fDocument;
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87 }
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88 return false;
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89 }
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90
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91 /**
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92 * Returns whether this position overlaps with <code>position</code>.
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93 *
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94 * @param position the position to check.
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95 * @return <code>true</code> if this position overlaps with
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96 * <code>position</code>,<code>false</code> otherwise
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97 */
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98 public bool overlapsWith(LinkedPosition position) {
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99 return position.getDocument() is fDocument && overlapsWith(position.getOffset(), position.getLength());
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100 }
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101
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102 /**
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103 * Returns whether this position includes <code>event</code>.
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104 *
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105 * @param event the event to check.
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106 * @return <code>true</code> if this position includes <code>event</code>,
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107 * <code>false</code> otherwise
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108 */
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109 public bool includes(DocumentEvent event) {
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110 return includes(event.getDocument(), event.getOffset(), event.getLength());
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111 }
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112
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113 /**
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114 * Returns whether this position includes <code>position</code>.
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115 *
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116 * @param position the position to check.
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117 * @return <code>true</code> if this position includes
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118 * <code>position</code>,<code>false</code> otherwise
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119 */
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120 public bool includes(LinkedPosition position) {
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121 return includes(position.getDocument(), position.getOffset(), position.getLength());
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122 }
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123
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124 /**
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125 * Overrides {@link Position#includes(int)}so every offset is considered
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126 * included that lies in between the first and last offset of this position,
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127 * and offsets that are right at the end of the position.
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128 *
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129 * @param pOffset the offset to check
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130 * @return <code>true</code> if <code>pOffset</code> is in
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131 * <code>[offset, offset + length]</code>
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132 */
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133 public bool includes(int pOffset) {
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134 return this.offset <= pOffset && pOffset <= this.offset + this.length;
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135 }
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136
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137 /**
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138 * Returns whether this position includes the range given by
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139 * <code>offset</code> and <code>length</code>. A range is included by
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140 * a <code>LinkedPosition</code> if {@link #includes(int) includes(offset)}
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141 * returns true for every offset in the range, including the borders of the
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142 * range.
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143 *
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144 * @param doc the document that the given range refers to, may be <code>null</code>
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145 * @param off the offset of the range, referring to <code>document</code>
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146 * @param len the length of the range
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147 * @return <code>true</code> if <code>doc</code> is the same document as
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148 * this position refers to, and if the entire range is included in
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149 * this position
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150 */
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151 protected bool includes(IDocument doc, int off, int len) {
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152 return doc is fDocument && off >= offset && len + off <= offset + length;
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153
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154 }
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155
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156 /**
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157 * Returns the content of this position on the referenced document.
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158 *
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159 * @return the content of the document at this position
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160 * @throws BadLocationException if the position is not valid
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161 */
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162 public String getContent() {
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163 return fDocument.get(offset, length);
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164 }
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165
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166 /**
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167 * Returns the sequence number of this position.
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168 *
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169 * @return the sequence number of this position
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170 */
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171 public int getSequenceNumber() {
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172 return fSequenceNumber;
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173 }
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174
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175 /**
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176 * Sets the sequence number of this position.
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177 *
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178 * @param sequence the new sequence number
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179 */
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180 public void setSequenceNumber(int sequence) {
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181 fSequenceNumber= sequence;
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182 }
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183
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184 /*
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185 * @see org.eclipse.jface.text.Position#hashCode()
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186 */
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187 public override hash_t toHash() {
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188 alias .toHash toHash;
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189 return (cast(Object)fDocument).toHash() | super.toHash() | fSequenceNumber;
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190 }
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191 }