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annotate org.eclipse.text/src/org/eclipse/text/edits/MoveSourceEdit.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.text.edits.MoveSourceEdit;
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14 import org.eclipse.text.edits.MalformedTreeException;
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15 import org.eclipse.text.edits.TextEditGroup;
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16 import org.eclipse.text.edits.RangeMarker;
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17 import org.eclipse.text.edits.TextEditCopier;
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18 import org.eclipse.text.edits.UndoEdit;
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19 import org.eclipse.text.edits.InsertEdit;
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20 import org.eclipse.text.edits.MoveTargetEdit;
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21 import org.eclipse.text.edits.CopyTargetEdit;
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22 import org.eclipse.text.edits.TextEditProcessor;
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23 import org.eclipse.text.edits.TextEditVisitor;
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24 import org.eclipse.text.edits.TextEdit;
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25 import org.eclipse.text.edits.TreeIterationInfo;
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26 import org.eclipse.text.edits.TextEditMessages;
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27 import org.eclipse.text.edits.CopySourceEdit;
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28 import org.eclipse.text.edits.ReplaceEdit;
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29 import org.eclipse.text.edits.MultiTextEdit;
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30 import org.eclipse.text.edits.EditDocument;
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31 import org.eclipse.text.edits.UndoCollector;
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32 import org.eclipse.text.edits.ISourceModifier;
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33 import org.eclipse.text.edits.CopyingRangeMarker;
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34 import org.eclipse.text.edits.DeleteEdit;
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37
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38 import java.lang.all;
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39 import java.util.Arrays;
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40 import java.util.List;
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41 import java.util.ArrayList;
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42 import java.util.Iterator;
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43 import java.util.Map;
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44 import java.util.HashMap;
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45 import java.util.Set;
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53 import org.eclipse.core.runtime.Assert;
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54 import org.eclipse.jface.text.BadLocationException;
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55 import org.eclipse.jface.text.IDocument;
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56 import org.eclipse.jface.text.IRegion;
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57 import org.eclipse.jface.text.Region;
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58
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59 /**
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60 * A move source edit denotes the source of a move operation. Move
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61 * source edits are only valid inside an edit tree if they have a
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62 * corresponding target edit. Furthermore the corresponding target
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63 * edit can't be a direct or indirect child of the source edit.
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64 * Violating one of two requirements will result in a <code>
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65 * MalformedTreeException</code> when executing the edit tree.
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66 * <p>
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67 * A move source edit can manage an optional source modifier. A
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68 * source modifier can provide a set of replace edits which will
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69 * to applied to the source before it gets inserted at the target
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70 * position.
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71 *
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72 * @see org.eclipse.text.edits.MoveTargetEdit
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73 * @see org.eclipse.text.edits.CopySourceEdit
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74 *
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75 * @since 3.0
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76 */
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77 public final class MoveSourceEdit : TextEdit {
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78
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79 private MoveTargetEdit fTarget;
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80 private ISourceModifier fModifier;
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81
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82 private String fSourceContent;
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83 private MultiTextEdit fSourceRoot;
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84
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85 /**
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86 * Constructs a new move source edit.
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87 *
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88 * @param offset the edit's offset
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89 * @param length the edit's length
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90 */
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91 public this(int offset, int length) {
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92 super(offset, length);
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93 }
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94
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95 /**
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96 * Constructs a new copy source edit.
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97 *
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98 * @param offset the edit's offset
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99 * @param length the edit's length
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100 * @param target the edit's target
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101 */
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102 public this(int offset, int length, MoveTargetEdit target) {
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103 this(offset, length);
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104 setTargetEdit(target);
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105 }
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106
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107 /*
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108 * Copy constructor
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109 */
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110 private this(MoveSourceEdit other) {
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111 super(other);
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112 if (other.fModifier !is null)
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113 fModifier= other.fModifier.copy();
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114 }
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115
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116 /**
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117 * Returns the associated target edit or <code>null</code>
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118 * if no target edit is associated yet.
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119 *
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120 * @return the target edit or <code>null</code>
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121 */
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122 public MoveTargetEdit getTargetEdit() {
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123 return fTarget;
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124 }
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125
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126 /**
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127 * Sets the target edit.
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128 *
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129 * @param edit the new target edit.
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130 *
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131 * @exception MalformedTreeException is thrown if the target edit
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132 * is a direct or indirect child of the source edit
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133 */
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134 public void setTargetEdit(MoveTargetEdit edit) {
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135 fTarget= edit;
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136 fTarget.setSourceEdit(this);
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137 }
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138
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139 /**
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140 * Returns the current source modifier or <code>null</code>
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141 * if no source modifier is set.
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142 *
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143 * @return the source modifier
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144 */
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145 public ISourceModifier getSourceModifier() {
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146 return fModifier;
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147 }
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148
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149 /**
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150 * Sets the optional source modifier.
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151 *
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152 * @param modifier the source modifier or <code>null</code>
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153 * if no source modification is need.
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154 */
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155 public void setSourceModifier(ISourceModifier modifier) {
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156 fModifier= modifier;
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157 }
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158
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159 //---- API for MoveTargetEdit ---------------------------------------------
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160
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161 String getContent() {
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162 // The source content can be null if the edit wasn't executed
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163 // due to an exclusion list of the text edit processor. Return
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164 // the empty string which can be moved without any harm.
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165 if (fSourceContent is null)
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166 return ""; //$NON-NLS-1$
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167 return fSourceContent;
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168 }
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169
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170 MultiTextEdit getSourceRoot() {
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171 return fSourceRoot;
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172 }
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173
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174 void clearContent() {
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175 fSourceContent= null;
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176 fSourceRoot= null;
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177 }
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178
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179 //---- Copying -------------------------------------------------------------
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180
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181 /*
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182 * @see TextEdit#doCopy
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183 */
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184 protected TextEdit doCopy() {
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185 return new MoveSourceEdit(this);
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186 }
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187
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188 /*
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189 * @see TextEdit#postProcessCopy
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190 */
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191 protected void postProcessCopy(TextEditCopier copier) {
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192 if (fTarget !is null) {
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193 MoveSourceEdit source= cast(MoveSourceEdit)copier.getCopy(this);
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194 MoveTargetEdit target= cast(MoveTargetEdit)copier.getCopy(fTarget);
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195 if (source !is null && target !is null)
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196 source.setTargetEdit(target);
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197 }
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198 }
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199
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200 //---- Visitor -------------------------------------------------------------
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201
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202 /*
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203 * @see TextEdit#accept0
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204 */
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205 protected void accept0(TextEditVisitor visitor) {
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206 bool visitChildren= visitor.visit(this);
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207 if (visitChildren) {
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208 acceptChildren(visitor);
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209 }
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210 }
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211
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212 //---- consistency check ----------------------------------------------------------------
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213
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214 int traverseConsistencyCheck(TextEditProcessor processor, IDocument document, List sourceEdits) {
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215 int result= super.traverseConsistencyCheck(processor, document, sourceEdits);
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216 // Since source computation takes place in a recursive fashion (see
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217 // performSourceComputation) we only do something if we don't have a
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218 // computed source already.
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219 if (fSourceContent is null) {
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220 if (sourceEdits.size() <= result) {
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221 List list= new ArrayList();
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222 list.add(this);
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223 for (int i= sourceEdits.size(); i < result; i++)
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224 sourceEdits.add(cast(Object)null);
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225 sourceEdits.add(cast(Object)list);
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226 } else {
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227 List list= cast(List)sourceEdits.get(result);
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228 if (list is null) {
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229 list= new ArrayList();
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230 sourceEdits.add(result, cast(Object)list);
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231 }
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232 list.add(this);
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233 }
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234 }
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235 return result;
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236 }
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237
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238 void performConsistencyCheck(TextEditProcessor processor, IDocument document) {
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239 if (fTarget is null)
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240 throw new MalformedTreeException(getParent(), this, TextEditMessages.getString("MoveSourceEdit.no_target")); //$NON-NLS-1$
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241 if (fTarget.getSourceEdit() !is this)
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242 throw new MalformedTreeException(getParent(), this, TextEditMessages.getString("MoveSourceEdit.different_source")); //$NON-NLS-1$
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243 /* Causes AST rewrite to fail
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244 if (getRoot() !is fTarget.getRoot())
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245 throw new MalformedTreeException(getParent(), this, TextEditMessages.getString("MoveSourceEdit.different_tree")); //$NON-NLS-1$
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246 */
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247 }
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248
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249 //---- source computation --------------------------------------------------------------
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250
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251 void traverseSourceComputation(TextEditProcessor processor, IDocument document) {
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252 // always perform source computation independent of processor.considerEdit
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253 // The target might need the source and the source is computed in a
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254 // temporary buffer.
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255 performSourceComputation(processor, document);
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256 }
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257
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258 void performSourceComputation(TextEditProcessor processor, IDocument document) {
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259 try {
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260 TextEdit[] children= removeChildren();
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261 if (children.length > 0) {
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262 String content= document.get(getOffset(), getLength());
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263 EditDocument subDocument= new EditDocument(content);
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264 fSourceRoot= new MultiTextEdit(getOffset(), getLength());
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265 fSourceRoot.addChildren(children);
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266 fSourceRoot.internalMoveTree(-getOffset());
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267 int processingStyle= getStyle(processor);
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268 TextEditProcessor subProcessor= TextEditProcessor.createSourceComputationProcessor(subDocument, fSourceRoot, processingStyle);
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269 subProcessor.performEdits();
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270 if (needsTransformation())
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271 applyTransformation(subDocument, processingStyle);
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272 fSourceContent= subDocument.get();
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273 } else {
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274 fSourceContent= document.get(getOffset(), getLength());
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275 if (needsTransformation()) {
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276 EditDocument subDocument= new EditDocument(fSourceContent);
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277 applyTransformation(subDocument, getStyle(processor));
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278 fSourceContent= subDocument.get();
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279 }
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280 }
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281 } catch (BadLocationException cannotHappen) {
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282 Assert.isTrue(false);
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283 }
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284 }
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285
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286 private int getStyle(TextEditProcessor processor) {
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287 // we never need undo while performing local edits.
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288 if ((processor.getStyle() & TextEdit.UPDATE_REGIONS) !is 0)
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289 return TextEdit.UPDATE_REGIONS;
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290 return TextEdit.NONE;
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291 }
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292
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293 //---- document updating ----------------------------------------------------------------
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294
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295 int performDocumentUpdating(IDocument document) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
296 document.replace(getOffset(), getLength(), ""); //$NON-NLS-1$
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parents:
diff changeset
297 fDelta= -getLength();
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parents:
diff changeset
298 return fDelta;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
299 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
300
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
301 //---- region updating --------------------------------------------------------------
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diff changeset
302
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
303 /*
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
304 * @see TextEdit#deleteChildren
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
305 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
306 bool deleteChildren() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
307 return false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
308 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
309
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
310 //---- content transformation --------------------------------------------------
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diff changeset
311
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
312 private bool needsTransformation() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
313 return fModifier !is null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
314 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
315
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
316 private void applyTransformation(IDocument document, int style) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
317 if ((style & TextEdit.UPDATE_REGIONS) !is 0 && fSourceRoot !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
318 Map editMap= new HashMap();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
319 TextEdit newEdit= createEdit(editMap);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
320 List replaces= new ArrayList(Arrays.asList(fModifier.getModifications(document.get())));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
321 insertEdits(newEdit, replaces);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
322 try {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
323 newEdit.apply(document, style);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
324 } catch (BadLocationException cannotHappen) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
325 Assert.isTrue(false);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
326 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
327 restorePositions(editMap);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
328 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
329 MultiTextEdit newEdit= new MultiTextEdit(0, document.getLength());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
330 TextEdit[] replaces= fModifier.getModifications(document.get());
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parents:
diff changeset
331 for (int i= 0; i < replaces.length; i++) {
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parents:
diff changeset
332 newEdit.addChild(replaces[i]);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
333 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
334 try {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
335 newEdit.apply(document, style);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
336 } catch (BadLocationException cannotHappen) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
337 Assert.isTrue(false);
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parents:
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338 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
339 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
340 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
341
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
342 private TextEdit createEdit(Map editMap) {
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parents:
diff changeset
343 MultiTextEdit result= new MultiTextEdit(0, fSourceRoot.getLength());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
344 editMap.put(result, fSourceRoot);
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parents:
diff changeset
345 createEdit(fSourceRoot, result, editMap);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
346 return result;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
347 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
348
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
349 private static void createEdit(TextEdit source, TextEdit target, Map editMap) {
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parents:
diff changeset
350 TextEdit[] children= source.getChildren();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
351 for (int i= 0; i < children.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
352 TextEdit child= children[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
353 // a deleted child remains deleted even if the temporary buffer
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
354 // gets modified.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
355 if (child.isDeleted())
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
356 continue;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
357 RangeMarker marker= new RangeMarker(child.getOffset(), child.getLength());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
358 target.addChild(marker);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
359 editMap.put(marker, child);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
360 createEdit(child, marker, editMap);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
361 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
362 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
363
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
364 private void insertEdits(TextEdit root, List edits) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
365 while(edits.size() > 0) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
366 ReplaceEdit edit= cast(ReplaceEdit)edits.remove(0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
367 insert(root, edit, edits);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
368 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
369 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
370 private static void insert(TextEdit parent, ReplaceEdit edit, List edits) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
371 if (!parent.hasChildren()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
372 parent.addChild(edit);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
373 return;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
374 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
375 TextEdit[] children= parent.getChildren();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
376 // First dive down to find the right parent.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
377 int removed= 0;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
378 for (int i= 0; i < children.length; i++) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
379 TextEdit child= children[i];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
380 if (child.covers(edit)) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
381 insert(child, edit, edits);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
382 return;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
383 } else if (edit.covers(child)) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
384 parent.removeChild(i - removed++);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
385 edit.addChild(child);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
386 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
387 IRegion intersect= intersect(edit, child);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
388 if (intersect !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
389 ReplaceEdit[] splits= splitEdit(edit, intersect);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
390 insert(child, splits[0], edits);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
391 edits.add(splits[1]);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
392 return;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
393 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
394 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
395 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
396 parent.addChild(edit);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
397 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
398
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
399 public static IRegion intersect(TextEdit op1, TextEdit op2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
400 int offset1= op1.getOffset();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
401 int length1= op1.getLength();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
402 int end1= offset1 + length1 - 1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
403 int offset2= op2.getOffset();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
404 if (end1 < offset2)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
405 return null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
406 int length2= op2.getLength();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
407 int end2= offset2 + length2 - 1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
408 if (end2 < offset1)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
409 return null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
410
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
411 int end= Math.min(end1, end2);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
412 if (offset1 < offset2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
413 return new Region(offset2, end - offset2 + 1);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
414 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
415 return new Region(offset1, end - offset1 + 1);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
416 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
417
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
418 private static ReplaceEdit[] splitEdit(ReplaceEdit edit, IRegion intersect) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
419 if (edit.getOffset() !is intersect.getOffset())
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
420 return splitIntersectRight(edit, intersect);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
421 return splitIntersectLeft(edit, intersect);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
422 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
423
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
424 private static ReplaceEdit[] splitIntersectRight(ReplaceEdit edit, IRegion intersect) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
425 ReplaceEdit[] result= new ReplaceEdit[2];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
426 // this is the actual delete. We use replace to only deal with one type
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
427 result[0]= new ReplaceEdit(intersect.getOffset(), intersect.getLength(), ""); //$NON-NLS-1$
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
428 result[1]= new ReplaceEdit(
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
429 edit.getOffset(),
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
430 intersect.getOffset() - edit.getOffset(),
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
431 edit.getText());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
432 return result;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
433 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
434
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
435 private static ReplaceEdit[] splitIntersectLeft(ReplaceEdit edit, IRegion intersect) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
436 ReplaceEdit[] result= new ReplaceEdit[2];
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
437 result[0]= new ReplaceEdit(intersect.getOffset(), intersect.getLength(), edit.getText());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
438 result[1]= new ReplaceEdit( // this is the actual delete. We use replace to only deal with one type
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
439 intersect.getOffset() + intersect.getLength(),
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
440 edit.getLength() - intersect.getLength(),
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
441 ""); //$NON-NLS-1$
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442 return result;
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443 }
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444
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445 private static void restorePositions(Map editMap) {
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446 for (Iterator iter= editMap.keySet().iterator(); iter.hasNext();) {
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447 TextEdit marker= cast(TextEdit)iter.next();
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448 TextEdit edit= cast(TextEdit)editMap.get(marker);
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449 if (marker.isDeleted()) {
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450 edit.markAsDeleted();
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451 } else {
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452 edit.adjustOffset(marker.getOffset() - edit.getOffset());
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453 edit.adjustLength(marker.getLength() - edit.getLength());
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454 }
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455 }
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456 }
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457 }