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annotate org.eclipse.jface.text/projection/org/eclipse/jface/text/source/projection/ProjectionAnnotationModel.d @ 104:88652073d1c2

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More work on icu
author Frank Benoit <benoit@tionex.de>
date Sat, 02 May 2009 11:27:24 +0200
parents bc29606a740c
children
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 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.projection.ProjectionAnnotationModel;
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15 import org.eclipse.jface.text.source.projection.ProjectionViewer; // packageimport
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16 import org.eclipse.jface.text.source.projection.ProjectionSupport; // packageimport
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17 import org.eclipse.jface.text.source.projection.IProjectionPosition; // packageimport
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18 import org.eclipse.jface.text.source.projection.AnnotationBag; // packageimport
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19 import org.eclipse.jface.text.source.projection.ProjectionSummary; // packageimport
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20 import org.eclipse.jface.text.source.projection.ProjectionAnnotationHover; // packageimport
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21 import org.eclipse.jface.text.source.projection.ProjectionRulerColumn; // packageimport
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22 import org.eclipse.jface.text.source.projection.SourceViewerInformationControl; // packageimport
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23 import org.eclipse.jface.text.source.projection.IProjectionListener; // packageimport
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24 import org.eclipse.jface.text.source.projection.ProjectionAnnotation; // packageimport
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27 import java.lang.all;
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28 import java.util.Iterator;
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29 import java.util.Map;
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30 import java.util.Set;
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34 import org.eclipse.jface.text.BadLocationException;
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35 import org.eclipse.jface.text.Position;
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36 import org.eclipse.jface.text.source.Annotation;
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37 import org.eclipse.jface.text.source.AnnotationModel;
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39
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40 /**
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41 * A projection annotation model. It provides methods for modifying the
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42 * expansion state of the managed projection annotations.
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43 * <p>
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44 * Do not subclass. Use it as is.
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45 * </p>
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46 *
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47 * @since 3.0
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48 * @noextend This class is not intended to be subclassed by clients.
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49 */
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50 public class ProjectionAnnotationModel : AnnotationModel {
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51
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52
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53 /**
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54 * Creates a new, empty projection annotation model.
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55 */
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56 public this() {
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57 }
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58
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59 /**
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60 * Changes the state of the given annotation to collapsed. An appropriate
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61 * annotation model change event is sent out.
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62 *
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63 * @param annotation the annotation
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64 */
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65 public void collapse(Annotation annotation) {
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66 if ( cast(ProjectionAnnotation)annotation ) {
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67 ProjectionAnnotation projection= cast(ProjectionAnnotation) annotation;
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68 if (!projection.isCollapsed()) {
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69 projection.markCollapsed();
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70 modifyAnnotation(projection, true);
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71 }
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72 }
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73 }
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74
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75 /**
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76 * Changes the state of the given annotation to expanded. An appropriate
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77 * annotation model change event is sent out.
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78 *
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79 * @param annotation the annotation
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80 */
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81 public void expand(Annotation annotation) {
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82 if ( cast(ProjectionAnnotation)annotation ) {
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83 ProjectionAnnotation projection= cast(ProjectionAnnotation) annotation;
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84 if (projection.isCollapsed()) {
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85 projection.markExpanded();
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86 modifyAnnotation(projection, true);
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87 }
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88 }
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89 }
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90
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91 /**
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92 * Toggles the expansion state of the given annotation. An appropriate
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93 * annotation model change event is sent out.
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94 *
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95 * @param annotation the annotation
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96 */
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97 public void toggleExpansionState(Annotation annotation) {
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98 if ( cast(ProjectionAnnotation)annotation ) {
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99 ProjectionAnnotation projection= cast(ProjectionAnnotation) annotation;
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100
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101 if (projection.isCollapsed())
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102 projection.markExpanded();
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103 else
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104 projection.markCollapsed();
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105
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106 modifyAnnotation(projection, true);
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107 }
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108 }
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109
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110 /**
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111 * Expands all annotations that overlap with the given range and are collapsed.
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112 *
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113 * @param offset the range offset
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114 * @param length the range length
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115 * @return <code>true</code> if any annotation has been expanded, <code>false</code> otherwise
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116 */
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117 public bool expandAll(int offset, int length) {
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118 return expandAll(offset, length, true);
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119 }
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120
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121 /**
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122 * Collapses all annotations that overlap with the given range and are collapsed.
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123 *
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124 * @param offset the range offset
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125 * @param length the range length
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126 * @return <code>true</code> if any annotation has been collapse, <code>false</code>
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127 * otherwise
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128 * @since 3.2
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129 */
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130 public bool collapseAll(int offset, int length) {
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131
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132 bool collapsing= false;
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133
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134 Iterator iterator= getAnnotationIterator();
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135 while (iterator.hasNext()) {
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136 ProjectionAnnotation annotation= cast(ProjectionAnnotation) iterator.next();
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137 if (!annotation.isCollapsed()) {
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138 Position position= getPosition(annotation);
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139 if (position !is null && position.overlapsWith(offset, length) /* || is a delete at the boundary */ ) {
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140 annotation.markCollapsed();
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141 modifyAnnotation(annotation, false);
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142 collapsing= true;
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143 }
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144 }
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145 }
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146
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147 if (collapsing)
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148 fireModelChanged();
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149
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150 return collapsing;
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151 }
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152
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153 /**
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154 * Expands all annotations that overlap with the given range and are collapsed. Fires a model change event if
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155 * requested.
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156 *
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157 * @param offset the offset of the range
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158 * @param length the length of the range
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159 * @param fireModelChanged <code>true</code> if a model change event
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160 * should be fired, <code>false</code> otherwise
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161 * @return <code>true</code> if any annotation has been expanded, <code>false</code> otherwise
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162 */
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163 protected bool expandAll(int offset, int length, bool fireModelChanged_) {
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164
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165 bool expanding= false;
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166
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167 Iterator iterator= getAnnotationIterator();
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168 while (iterator.hasNext()) {
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169 ProjectionAnnotation annotation= cast(ProjectionAnnotation) iterator.next();
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170 if (annotation.isCollapsed()) {
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171 Position position= getPosition(annotation);
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172 if (position !is null && position.overlapsWith(offset, length) /* || is a delete at the boundary */ ) {
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173 annotation.markExpanded();
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174 modifyAnnotation(annotation, false);
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175 expanding= true;
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176 }
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177 }
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178 }
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179
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180 if (expanding && fireModelChanged_)
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181 fireModelChanged();
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182
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183 return expanding;
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184 }
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185
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186 /**
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187 * Modifies the annotation model.
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188 *
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189 * @param deletions the list of deleted annotations
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190 * @param additions the set of annotations to add together with their associated position
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191 * @param modifications the list of modified annotations
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192 */
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193 public void modifyAnnotations(Annotation[] deletions, Map additions, Annotation[] modifications) {
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194 try {
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195 replaceAnnotations(deletions, additions, false);
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196 if (modifications !is null) {
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197 for (int i= 0; i < modifications.length; i++)
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198 modifyAnnotation(modifications[i], false);
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199 }
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200 } catch (BadLocationException x) {
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201 }
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202 fireModelChanged();
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203 }
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204 }