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annotate org.eclipse.text/src/org/eclipse/jface/text/source/AnnotationModelEvent.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, 2005 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.source.AnnotationModelEvent;
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14 import org.eclipse.jface.text.source.IAnnotationMap;
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15 import org.eclipse.jface.text.source.IAnnotationModelExtension2;
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16 import org.eclipse.jface.text.source.IAnnotationModelListenerExtension;
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17 import org.eclipse.jface.text.source.AnnotationMap;
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18 import org.eclipse.jface.text.source.IAnnotationModel;
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19 import org.eclipse.jface.text.source.IAnnotationModelExtension;
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20 import org.eclipse.jface.text.source.Annotation;
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21 import org.eclipse.jface.text.source.AnnotationModel;
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22 import org.eclipse.jface.text.source.IAnnotationModelListener;
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26 import java.lang.all;
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27 import java.util.Map;
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28 import java.util.HashMap;
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29 import java.util.Set;
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30 import java.util.HashSet;
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37 import org.eclipse.jface.text.Position;
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39
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40 /**
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41 * Specification of changes applied to annotation models. The event carries the
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42 * changed annotation model as well as added, removed, and modified annotations.
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43 * <p>
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44 * An event can be sealed. Afterwards it can not be modified. Thus, the normal
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45 * process is that an empty event is created, filled with the changed
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46 * information, and before it is sent to the listeners, the event is sealed.
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47 *
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48 * @see org.eclipse.jface.text.source.IAnnotationModel
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49 * @see org.eclipse.jface.text.source.IAnnotationModelListenerExtension
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50 * @since 2.0
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51 */
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52 public class AnnotationModelEvent {
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53
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54 /** The model this event refers to. */
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55 private IAnnotationModel fAnnotationModel;
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56 /**
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57 * The added annotations.
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58 * @since 3.0
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59 */
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60 private Set fAddedAnnotations;
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61 /**
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62 * The removed annotations.
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63 * @since 3.0
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64 */
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65 private Map fRemovedAnnotations;
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66 /**
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67 * The changed annotations.
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68 * @since 3.0
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69 */
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70 private Set fChangedAnnotations;
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71 /**
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72 * Indicates that this event does not contain detailed information.
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73 * @since 3.0
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74 */
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75 private bool fIsWorldChange;
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76 /**
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77 * The modification stamp.
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78 * @since 3.0
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79 */
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80 private Object fModificationStamp;
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81
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82 /**
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83 * Creates a new annotation model event for the given model.
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84 *
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85 * @param model the model
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86 */
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87 public this(IAnnotationModel model) {
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88 this(model, true);
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89 }
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90
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91 /**
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92 * Creates a new annotation model event for the given model.
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93 *
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94 * @param model the model
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95 * @param isWorldChange <code>true</code> if world change
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96 * @since 3.0
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97 */
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98 public this(IAnnotationModel model, bool isWorldChange) {
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99 fAddedAnnotations= new HashSet();
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100 fRemovedAnnotations= new HashMap();
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101 fChangedAnnotations= new HashSet();
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102
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103 fAnnotationModel= model;
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104 fIsWorldChange= isWorldChange;
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105 }
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106
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107 /**
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108 * Returns the model this event refers to.
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109 *
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110 * @return the model this events belongs to
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111 */
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112 public IAnnotationModel getAnnotationModel() {
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113 return fAnnotationModel;
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114 }
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115
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116 /**
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117 * Adds the given annotation to the set of annotations that are reported as
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118 * being added from the model. If this event is considered a world change,
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119 * it is no longer so after this method has successfully finished.
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120 *
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121 * @param annotation the added annotation
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122 * @since 3.0
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123 */
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124 public void annotationAdded(Annotation annotation) {
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125 fAddedAnnotations.add(annotation);
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126 fIsWorldChange= false;
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127 }
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128
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129 /**
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130 * Returns the added annotations.
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131 *
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132 * @return the added annotations
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133 * @since 3.0
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134 */
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135 public Annotation[] getAddedAnnotations() {
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136 int size= fAddedAnnotations.size();
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137 Annotation[] added= new Annotation[size];
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138 fAddedAnnotations.toArray(added);
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139 return added;
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140 }
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141
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142 /**
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143 * Adds the given annotation to the set of annotations that are reported as
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144 * being removed from the model. If this event is considered a world
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145 * change, it is no longer so after this method has successfully finished.
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146 *
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147 * @param annotation the removed annotation
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148 * @since 3.0
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149 */
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150 public void annotationRemoved(Annotation annotation) {
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151 annotationRemoved(annotation, null);
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152 }
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153
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154 /**
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155 * Adds the given annotation to the set of annotations that are reported as
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156 * being removed from the model. If this event is considered a world
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157 * change, it is no longer so after this method has successfully finished.
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158 *
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159 * @param annotation the removed annotation
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160 * @param position the position of the removed annotation
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161 * @since 3.0
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162 */
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163 public void annotationRemoved(Annotation annotation, Position position) {
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164 fRemovedAnnotations.put(annotation, position);
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165 fIsWorldChange= false;
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166 }
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167
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168 /**
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169 * Returns the removed annotations.
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170 *
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171 * @return the removed annotations
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172 * @since 3.0
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173 */
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174 public Annotation[] getRemovedAnnotations() {
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175 int size= fRemovedAnnotations.size();
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176 Annotation[] removed= new Annotation[size];
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177 fRemovedAnnotations.keySet().toArray(removed);
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178 return removed;
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179 }
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180
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181 /**
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182 * Returns the position of the removed annotation at that point in time
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183 * when the annotation has been removed.
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184 *
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185 * @param annotation the removed annotation
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186 * @return the position of the removed annotation or <code>null</code>
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187 * @since 3.0
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188 */
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189 public Position getPositionOfRemovedAnnotation(Annotation annotation) {
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190 return cast(Position) fRemovedAnnotations.get(annotation);
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191 }
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192
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193 /**
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194 * Adds the given annotation to the set of annotations that are reported as
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195 * being changed from the model. If this event is considered a world
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196 * change, it is no longer so after this method has successfully finished.
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197 *
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198 * @param annotation the changed annotation
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199 * @since 3.0
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200 */
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201 public void annotationChanged(Annotation annotation) {
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202 fChangedAnnotations.add(annotation);
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203 fIsWorldChange= false;
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204 }
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205
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206 /**
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207 * Returns the changed annotations.
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208 *
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209 * @return the changed annotations
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210 * @since 3.0
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211 */
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212 public Annotation[] getChangedAnnotations() {
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213 int size= fChangedAnnotations.size();
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214 Annotation[] changed= new Annotation[size];
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215 fChangedAnnotations.toArray(changed);
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216 return changed;
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217 }
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218
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219 /**
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220 * Returns whether this annotation model event is empty or not. If this
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221 * event represents a world change, this method returns <code>false</code>
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222 * although the event does not carry any added, removed, or changed
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223 * annotations.
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224 *
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225 * @return <code>true</code> if this event is empty
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226 * @since 3.0
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227 */
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228 public bool isEmpty() {
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229 return !fIsWorldChange && fAddedAnnotations.isEmpty() && fRemovedAnnotations.isEmpty() && fChangedAnnotations.isEmpty();
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230 }
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231
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232 /**
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233 * Returns whether this annotation model events contains detailed
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234 * information about the modifications applied to the event annotation
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235 * model or whether it represents a world change. I.e. everything in the
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236 * model might have changed.
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237 *
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238 * @return <code>true</code> if world change, <code>false</code> otherwise
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239 * @since 3.0
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240 */
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241 public bool isWorldChange() {
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242 return fIsWorldChange;
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243 }
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244
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245 /**
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246 * Marks this event as world change according to the given flag.
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247 *
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248 * @param isWorldChange <code>true</code> if this event is a world change, <code>false</code> otherwise
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249 * @since 3.0
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250 */
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251 void markWorldChange(bool isWorldChange) {
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252 fIsWorldChange= isWorldChange;
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253 }
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254
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255 /**
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256 * Returns whether this annotation model event is still valid.
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257 *
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258 * @return <code>true</code> if this event is still valid, <code>false</code> otherwise
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259 * @since 3.0
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260 */
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261 public bool isValid() {
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262 if (fModificationStamp !is null && cast(IAnnotationModelExtension)fAnnotationModel ) {
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263 IAnnotationModelExtension extension= cast(IAnnotationModelExtension) fAnnotationModel;
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264 return fModificationStamp is extension.getModificationStamp();
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265 }
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266 return true;
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267 }
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268
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269 /**
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270 * Seals this event. Any direct modification to the annotation model after the event has been sealed
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271 * invalidates this event.
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272 *
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273 * @since 3.0
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274 */
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275 public void markSealed() {
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276 if ( cast(IAnnotationModelExtension)fAnnotationModel ) {
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277 IAnnotationModelExtension extension= cast(IAnnotationModelExtension) fAnnotationModel;
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278 fModificationStamp= extension.getModificationStamp();
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279 }
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280 }
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281 }