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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 dwtx.jface.text.source.projection.ProjectionViewer;
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14
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15 import dwt.dwthelper.utils;
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16
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17 import java.util.ArrayList;
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18 import java.util.Iterator;
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19 import java.util.List;
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20
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21 import dwt.DWTError;
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22 import dwt.custom.ST;
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23 import dwt.custom.StyledText;
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24 import dwt.dnd.Clipboard;
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25 import dwt.dnd.DND;
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26 import dwt.dnd.TextTransfer;
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27 import dwt.dnd.Transfer;
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28 import dwt.events.VerifyEvent;
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29 import dwt.graphics.Point;
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30 import dwt.widgets.Composite;
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31 import dwt.widgets.Display;
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32 import dwtx.core.runtime.Assert;
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33 import dwtx.jface.text.BadLocationException;
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34 import dwtx.jface.text.DocumentEvent;
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35 import dwtx.jface.text.FindReplaceDocumentAdapter;
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36 import dwtx.jface.text.IDocument;
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37 import dwtx.jface.text.IDocumentInformationMappingExtension;
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38 import dwtx.jface.text.IDocumentListener;
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39 import dwtx.jface.text.IRegion;
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40 import dwtx.jface.text.ISlaveDocumentManager;
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41 import dwtx.jface.text.ITextViewerExtension5;
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42 import dwtx.jface.text.Position;
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43 import dwtx.jface.text.Region;
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44 import dwtx.jface.text.TextUtilities;
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45 import dwtx.jface.text.projection.ProjectionDocument;
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46 import dwtx.jface.text.projection.ProjectionDocumentEvent;
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47 import dwtx.jface.text.projection.ProjectionDocumentManager;
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48 import dwtx.jface.text.source.Annotation;
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49 import dwtx.jface.text.source.AnnotationModelEvent;
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50 import dwtx.jface.text.source.CompositeRuler;
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51 import dwtx.jface.text.source.IAnnotationModel;
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52 import dwtx.jface.text.source.IAnnotationModelExtension;
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53 import dwtx.jface.text.source.IAnnotationModelListener;
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54 import dwtx.jface.text.source.IAnnotationModelListenerExtension;
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55 import dwtx.jface.text.source.IOverviewRuler;
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56 import dwtx.jface.text.source.IVerticalRuler;
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57 import dwtx.jface.text.source.IVerticalRulerColumn;
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58 import dwtx.jface.text.source.SourceViewer;
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59
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60
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61 /**
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62 * A projection source viewer is a source viewer which supports multiple visible
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63 * regions which can dynamically be changed.
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64 * <p>
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65 * A projection source viewer uses a <code>ProjectionDocumentManager</code>
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66 * for the management of the visible document.</p>
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67 * <p>
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68 * NOTE: The <code>ProjectionViewer</code> only supports projections that cover full lines.
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69 * </p>
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70 * <p>
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71 * This class should not be subclassed.</p>
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72 *
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73 * @since 3.0
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74 * @noextend This class is not intended to be subclassed by clients.
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75 */
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76 public class ProjectionViewer : SourceViewer , ITextViewerExtension5 {
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77
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78 private static final int BASE= INFORMATION; // see ISourceViewer.INFORMATION
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79
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80 /** Operation constant for the expand operation. */
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81 public static final int EXPAND= BASE + 1;
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82 /** Operation constant for the collapse operation. */
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83 public static final int COLLAPSE= BASE + 2;
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84 /** Operation constant for the toggle projection operation. */
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85 public static final int TOGGLE= BASE + 3;
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86 /** Operation constant for the expand all operation. */
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87 public static final int EXPAND_ALL= BASE + 4;
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88 /**
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89 * Operation constant for the collapse all operation.
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90 *
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91 * @since 3.2
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92 */
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93 public static final int COLLAPSE_ALL= BASE + 5;
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94
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95 /**
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96 * Internal listener to changes of the annotation model.
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97 */
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98 private class AnnotationModelListener : IAnnotationModelListener, IAnnotationModelListenerExtension {
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99
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100 /*
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101 * @see dwtx.jface.text.source.IAnnotationModelListener#modelChanged(dwtx.jface.text.source.IAnnotationModel)
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102 */
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103 public void modelChanged(IAnnotationModel model) {
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104 processModelChanged(model, null);
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105 }
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106
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107 /*
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108 * @see dwtx.jface.text.source.IAnnotationModelListenerExtension#modelChanged(dwtx.jface.text.source.AnnotationModelEvent)
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109 */
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110 public void modelChanged(AnnotationModelEvent event) {
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111 processModelChanged(event.getAnnotationModel(), event);
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112 }
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113
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114 private void processModelChanged(IAnnotationModel model, AnnotationModelEvent event) {
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115 if (model is fProjectionAnnotationModel) {
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116
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117 if (fProjectionSummary !is null)
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118 fProjectionSummary.updateSummaries();
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119 processCatchupRequest(event);
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120
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121 } else if (model is getAnnotationModel() && fProjectionSummary !is null)
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122 fProjectionSummary.updateSummaries();
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123 }
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124 }
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125
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126 /**
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127 * Executes the 'replaceVisibleDocument' operation when called the first time. Self-destructs afterwards.
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128 */
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129 private class ReplaceVisibleDocumentExecutor : IDocumentListener {
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130
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131 private IDocument fSlaveDocument;
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132 private IDocument fExecutionTrigger;
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133
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134 /**
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135 * Creates a new executor in order to free the given slave document.
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136 *
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137 * @param slaveDocument the slave document to free
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138 */
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139 public ReplaceVisibleDocumentExecutor(IDocument slaveDocument) {
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140 fSlaveDocument= slaveDocument;
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141 }
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142
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143 /**
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144 * Installs this executor on the given trigger document.
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145 *
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146 * @param executionTrigger the trigger document
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147 */
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148 public void install(IDocument executionTrigger) {
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149 if (executionTrigger !is null && fSlaveDocument !is null) {
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150 fExecutionTrigger= executionTrigger;
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151 fExecutionTrigger.addDocumentListener(this);
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152 }
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153 }
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154
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155 /*
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156 * @see dwtx.jface.text.IDocumentListener#documentAboutToBeChanged(dwtx.jface.text.DocumentEvent)
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157 */
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158 public void documentAboutToBeChanged(DocumentEvent event) {
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159 }
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160
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161 /*
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162 * @see dwtx.jface.text.IDocumentListener#documentChanged(dwtx.jface.text.DocumentEvent)
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163 */
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164 public void documentChanged(DocumentEvent event) {
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165 fExecutionTrigger.removeDocumentListener(this);
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166 executeReplaceVisibleDocument(fSlaveDocument);
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167 }
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168 }
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169
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170 /**
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171 * A command representing a change of the projection document. This can be either
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172 * adding a master document range, removing a master document change, or invalidating
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173 * the viewer text presentation.
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174 */
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175 private static class ProjectionCommand {
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176
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177 final static int ADD= 0;
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178 final static int REMOVE= 1;
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179 final static int INVALIDATE_PRESENTATION= 2;
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180
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181 ProjectionDocument fProjection;
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182 int fType;
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183 int fOffset;
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184 int fLength;
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185
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186 ProjectionCommand(ProjectionDocument projection, int type, int offset, int length) {
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187 fProjection= projection;
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188 fType= type;
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189 fOffset= offset;
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190 fLength= length;
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191 }
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192
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193 ProjectionCommand(int offset, int length) {
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194 fType= INVALIDATE_PRESENTATION;
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195 fOffset= offset;
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196 fLength= length;
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197 }
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198
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199 int computeExpectedCosts() {
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200
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201 switch(fType) {
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202 case ADD: {
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203 try {
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204 IRegion[] gaps= fProjection.computeUnprojectedMasterRegions(fOffset, fLength);
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205 return gaps is null ? 0 : gaps.length;
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206 } catch (BadLocationException x) {
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207 }
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208 break;
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209 }
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210 case REMOVE: {
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211 try {
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212 IRegion[] fragments= fProjection.computeProjectedMasterRegions(fOffset, fLength);
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213 return fragments is null ? 0 : fragments.length;
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214 } catch (BadLocationException x) {
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215 }
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216 break;
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217 }
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218 }
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219 return 0;
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220 }
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221 }
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222
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223 /**
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224 * The queue of projection command objects.
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225 */
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226 private static class ProjectionCommandQueue {
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227
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228 final static int REDRAW_COSTS= 15;
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229 final static int INVALIDATION_COSTS= 10;
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230
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231 List fList= new ArrayList(15);
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232 int fExpectedExecutionCosts= -1;
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233
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234
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235 void add(ProjectionCommand command) {
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236 fList.add(command);
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237 }
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238
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239 Iterator iterator() {
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240 return fList.iterator();
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241 }
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242
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243 void clear() {
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244 fList.clear();
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245 fExpectedExecutionCosts= -1;
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246 }
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247
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248 bool passedRedrawCostsThreshold() {
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249 if (fExpectedExecutionCosts is -1)
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250 computeExpectedExecutionCosts();
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251 return fExpectedExecutionCosts > REDRAW_COSTS;
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252 }
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253
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254 bool passedInvalidationCostsThreshold() {
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255 if (fExpectedExecutionCosts is -1)
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256 computeExpectedExecutionCosts();
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257 return fExpectedExecutionCosts > INVALIDATION_COSTS;
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258 }
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259
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260 private void computeExpectedExecutionCosts() {
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261 int max_costs= Math.max(REDRAW_COSTS, INVALIDATION_COSTS);
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262 fExpectedExecutionCosts= fList.size();
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263 if (fExpectedExecutionCosts <= max_costs) {
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264 ProjectionCommand command;
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265 Iterator e= fList.iterator();
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266 while (e.hasNext()) {
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267 command= (ProjectionCommand) e.next();
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268 fExpectedExecutionCosts += command.computeExpectedCosts();
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269 if (fExpectedExecutionCosts > max_costs)
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270 break;
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271 }
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272 }
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273 }
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274 }
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275
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276 /** The projection annotation model used by this viewer. */
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277 private ProjectionAnnotationModel fProjectionAnnotationModel;
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278 /** The annotation model listener */
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279 private IAnnotationModelListener fAnnotationModelListener= new AnnotationModelListener();
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280 /** The projection summary. */
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281 private ProjectionSummary fProjectionSummary;
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282 /** Indication that an annotation world change has not yet been processed. */
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283 private bool fPendingAnnotationWorldChange= false;
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284 /** Indication whether projection changes in the visible document should be considered. */
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285 private bool fHandleProjectionChanges= true;
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286 /** The list of projection listeners. */
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287 private List fProjectionListeners;
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288 /** Internal lock for protecting the list of pending requests */
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289 private Object fLock= new Object();
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290 /** The list of pending requests */
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291 private List fPendingRequests= new ArrayList();
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292 /** The replace-visible-document execution trigger */
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293 private IDocument fReplaceVisibleDocumentExecutionTrigger;
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294 /** <code>true</code> if projection was on the last time we switched to segmented mode. */
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295 private bool fWasProjectionEnabled;
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296 /** The queue of projection commands used to assess the costs of projection changes. */
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297 private ProjectionCommandQueue fCommandQueue;
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298 /**
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299 * The amount of lines deleted by the last document event issued by the
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300 * visible document event.
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301 * @since 3.1
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302 */
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303 private int fDeletedLines;
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304
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305
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306 /**
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307 * Creates a new projection source viewer.
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308 *
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309 * @param parent the DWT parent control
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310 * @param ruler the vertical ruler
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311 * @param overviewRuler the overview ruler
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312 * @param showsAnnotationOverview <code>true</code> if the overview ruler should be shown
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313 * @param styles the DWT style bits
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314 */
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315 public ProjectionViewer(Composite parent, IVerticalRuler ruler, IOverviewRuler overviewRuler, bool showsAnnotationOverview, int styles) {
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316 super(parent, ruler, overviewRuler, showsAnnotationOverview, styles);
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317 }
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318
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319 /**
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320 * Sets the projection summary for this viewer.
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321 *
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322 * @param projectionSummary the projection summary.
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323 */
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324 public void setProjectionSummary(ProjectionSummary projectionSummary) {
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325 fProjectionSummary= projectionSummary;
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326 }
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327
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328 /**
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329 * Adds the projection annotation model to the given annotation model.
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330 *
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331 * @param model the model to which the projection annotation model is added
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332 */
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333 private void addProjectionAnnotationModel(IAnnotationModel model) {
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334 if (model instanceof IAnnotationModelExtension) {
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335 IAnnotationModelExtension extension= (IAnnotationModelExtension) model;
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336 extension.addAnnotationModel(ProjectionSupport.PROJECTION, fProjectionAnnotationModel);
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337 model.addAnnotationModelListener(fAnnotationModelListener);
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338 }
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339 }
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340
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341 /**
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342 * Removes the projection annotation model from the given annotation model.
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343 *
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344 * @param model the mode from which the projection annotation model is removed
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345 * @return the removed projection annotation model or <code>null</code> if there was none
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346 */
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347 private IAnnotationModel removeProjectionAnnotationModel(IAnnotationModel model) {
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348 if (model instanceof IAnnotationModelExtension) {
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349 model.removeAnnotationModelListener(fAnnotationModelListener);
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350 IAnnotationModelExtension extension= (IAnnotationModelExtension) model;
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351 return extension.removeAnnotationModel(ProjectionSupport.PROJECTION);
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352 }
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353 return null;
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354 }
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355
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356 /*
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357 * @see dwtx.jface.text.source.SourceViewer#setDocument(dwtx.jface.text.IDocument, dwtx.jface.text.source.IAnnotationModel, int, int)
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358 */
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359 public void setDocument(IDocument document, IAnnotationModel annotationModel, int modelRangeOffset, int modelRangeLength) {
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360 bool wasProjectionEnabled= false;
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361
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362 synchronized (fLock) {
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363 fPendingRequests.clear();
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364 }
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365
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366 if (fProjectionAnnotationModel !is null) {
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367 wasProjectionEnabled= removeProjectionAnnotationModel(getVisualAnnotationModel()) !is null;
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368 fProjectionAnnotationModel= null;
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369 }
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370
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371 super.setDocument(document, annotationModel, modelRangeOffset, modelRangeLength);
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372
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373 if (wasProjectionEnabled && document !is null)
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374 enableProjection();
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375 }
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376
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377 /*
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378 * @see dwtx.jface.text.source.SourceViewer#createVisualAnnotationModel(dwtx.jface.text.source.IAnnotationModel)
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379 */
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380 protected IAnnotationModel createVisualAnnotationModel(IAnnotationModel annotationModel) {
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381 IAnnotationModel model= super.createVisualAnnotationModel(annotationModel);
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382 fProjectionAnnotationModel= new ProjectionAnnotationModel();
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383 return model;
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384 }
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385
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386 /**
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387 * Returns the projection annotation model.
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388 *
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389 * @return the projection annotation model
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390 */
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391 public ProjectionAnnotationModel getProjectionAnnotationModel() {
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392 IAnnotationModel model= getVisualAnnotationModel();
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393 if (model instanceof IAnnotationModelExtension) {
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394 IAnnotationModelExtension extension= (IAnnotationModelExtension) model;
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395 return (ProjectionAnnotationModel) extension.getAnnotationModel(ProjectionSupport.PROJECTION);
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396 }
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397 return null;
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398 }
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399
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400 /*
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401 * @see dwtx.jface.text.TextViewer#createSlaveDocumentManager()
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402 */
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403 protected ISlaveDocumentManager createSlaveDocumentManager() {
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404 return new ProjectionDocumentManager();
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405 }
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406
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407 /*
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408 * @see dwtx.jface.text.TextViewer#updateSlaveDocument(dwtx.jface.text.IDocument, int, int)
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409 */
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410 protected bool updateSlaveDocument(IDocument slaveDocument, int modelRangeOffset, int modelRangeLength) throws BadLocationException {
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411 if (slaveDocument instanceof ProjectionDocument) {
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412 ProjectionDocument projection= (ProjectionDocument) slaveDocument;
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413
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414 int offset= modelRangeOffset;
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415 int length= modelRangeLength;
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|
416
|
|
|
417 if (!isProjectionMode()) {
|
|
|
418 // mimic original TextViewer behavior
|
|
|
419 IDocument master= projection.getMasterDocument();
|
|
|
420 int line= master.getLineOfOffset(modelRangeOffset);
|
|
|
421 offset= master.getLineOffset(line);
|
|
|
422 length= (modelRangeOffset - offset) + modelRangeLength;
|
|
|
423
|
|
|
424 }
|
|
|
425
|
|
|
426 try {
|
|
|
427 fHandleProjectionChanges= false;
|
|
|
428 projection.replaceMasterDocumentRanges(offset, length);
|
|
|
429 } finally {
|
|
|
430 fHandleProjectionChanges= true;
|
|
|
431 }
|
|
|
432 return true;
|
|
|
433 }
|
|
|
434 return false;
|
|
|
435 }
|
|
|
436
|
|
|
437 /**
|
|
|
438 * Adds a projection annotation listener to this viewer. The listener may
|
|
|
439 * not be <code>null</code>. If the listener is already registered, this method
|
|
|
440 * does not have any effect.
|
|
|
441 *
|
|
|
442 * @param listener the listener to add
|
|
|
443 */
|
|
|
444 public void addProjectionListener(IProjectionListener listener) {
|
|
|
445
|
|
|
446 Assert.isNotNull(listener);
|
|
|
447
|
|
|
448 if (fProjectionListeners is null)
|
|
|
449 fProjectionListeners= new ArrayList();
|
|
|
450
|
|
|
451 if (!fProjectionListeners.contains(listener))
|
|
|
452 fProjectionListeners.add(listener);
|
|
|
453 }
|
|
|
454
|
|
|
455 /**
|
|
|
456 * Removes the given listener from this viewer. The listener may not be
|
|
|
457 * <code>null</code>. If the listener is not registered with this viewer,
|
|
|
458 * this method is without effect.
|
|
|
459 *
|
|
|
460 * @param listener the listener to remove
|
|
|
461 */
|
|
|
462 public void removeProjectionListener(IProjectionListener listener) {
|
|
|
463
|
|
|
464 Assert.isNotNull(listener);
|
|
|
465
|
|
|
466 if (fProjectionListeners !is null) {
|
|
|
467 fProjectionListeners.remove(listener);
|
|
|
468 if (fProjectionListeners.size() is 0)
|
|
|
469 fProjectionListeners= null;
|
|
|
470 }
|
|
|
471 }
|
|
|
472
|
|
|
473 /**
|
|
|
474 * Notifies all registered projection listeners
|
|
|
475 * that projection mode has been enabled.
|
|
|
476 */
|
|
|
477 protected void fireProjectionEnabled() {
|
|
|
478 if (fProjectionListeners !is null) {
|
|
|
479 Iterator e= new ArrayList(fProjectionListeners).iterator();
|
|
|
480 while (e.hasNext()) {
|
|
|
481 IProjectionListener l= (IProjectionListener) e.next();
|
|
|
482 l.projectionEnabled();
|
|
|
483 }
|
|
|
484 }
|
|
|
485 }
|
|
|
486
|
|
|
487 /**
|
|
|
488 * Notifies all registered projection listeners
|
|
|
489 * that projection mode has been disabled.
|
|
|
490 */
|
|
|
491 protected void fireProjectionDisabled() {
|
|
|
492 if (fProjectionListeners !is null) {
|
|
|
493 Iterator e= new ArrayList(fProjectionListeners).iterator();
|
|
|
494 while (e.hasNext()) {
|
|
|
495 IProjectionListener l= (IProjectionListener) e.next();
|
|
|
496 l.projectionDisabled();
|
|
|
497 }
|
|
|
498 }
|
|
|
499 }
|
|
|
500
|
|
|
501 /**
|
|
|
502 * Returns whether this viewer is in projection mode.
|
|
|
503 *
|
|
|
504 * @return <code>true</code> if this viewer is in projection mode,
|
|
|
505 * <code>false</code> otherwise
|
|
|
506 */
|
|
|
507 public final bool isProjectionMode() {
|
|
|
508 return getProjectionAnnotationModel() !is null;
|
|
|
509 }
|
|
|
510
|
|
|
511 /**
|
|
|
512 * Disables the projection mode.
|
|
|
513 */
|
|
|
514 public final void disableProjection() {
|
|
|
515 if (isProjectionMode()) {
|
|
|
516 removeProjectionAnnotationModel(getVisualAnnotationModel());
|
|
|
517 fProjectionAnnotationModel.removeAllAnnotations();
|
|
|
518 fFindReplaceDocumentAdapter= null;
|
|
|
519 fireProjectionDisabled();
|
|
|
520 }
|
|
|
521 }
|
|
|
522
|
|
|
523 /**
|
|
|
524 * Enables the projection mode.
|
|
|
525 */
|
|
|
526 public final void enableProjection() {
|
|
|
527 if (!isProjectionMode()) {
|
|
|
528 addProjectionAnnotationModel(getVisualAnnotationModel());
|
|
|
529 fFindReplaceDocumentAdapter= null;
|
|
|
530 fireProjectionEnabled();
|
|
|
531 }
|
|
|
532 }
|
|
|
533
|
|
|
534 private void expandAll() {
|
|
|
535 int offset= 0;
|
|
|
536 IDocument doc= getDocument();
|
|
|
537 int length= doc is null ? 0 : doc.getLength();
|
|
|
538 if (isProjectionMode()) {
|
|
|
539 fProjectionAnnotationModel.expandAll(offset, length);
|
|
|
540 }
|
|
|
541 }
|
|
|
542
|
|
|
543 private void expand() {
|
|
|
544 if (isProjectionMode()) {
|
|
|
545 Position found= null;
|
|
|
546 Annotation bestMatch= null;
|
|
|
547 Point selection= getSelectedRange();
|
|
|
548 for (Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); e.hasNext();) {
|
|
|
549 ProjectionAnnotation annotation= (ProjectionAnnotation) e.next();
|
|
|
550 if (annotation.isCollapsed()) {
|
|
|
551 Position position= fProjectionAnnotationModel.getPosition(annotation);
|
|
|
552 // take the first most fine grained match
|
|
|
553 if (position !is null && touches(selection, position))
|
|
|
554 if (found is null || position.includes(found.offset) && position.includes(found.offset + found.length)) {
|
|
|
555 found= position;
|
|
|
556 bestMatch= annotation;
|
|
|
557 }
|
|
|
558 }
|
|
|
559 }
|
|
|
560
|
|
|
561 if (bestMatch !is null) {
|
|
|
562 fProjectionAnnotationModel.expand(bestMatch);
|
|
|
563 revealRange(selection.x, selection.y);
|
|
|
564 }
|
|
|
565 }
|
|
|
566 }
|
|
|
567
|
|
|
568 private bool touches(Point selection, Position position) {
|
|
|
569 return position.overlapsWith(selection.x, selection.y) || selection.y is 0 && position.offset + position.length is selection.x + selection.y;
|
|
|
570 }
|
|
|
571
|
|
|
572 private void collapse() {
|
|
|
573 if (isProjectionMode()) {
|
|
|
574 Position found= null;
|
|
|
575 Annotation bestMatch= null;
|
|
|
576 Point selection= getSelectedRange();
|
|
|
577 for (Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); e.hasNext();) {
|
|
|
578 ProjectionAnnotation annotation= (ProjectionAnnotation) e.next();
|
|
|
579 if (!annotation.isCollapsed()) {
|
|
|
580 Position position= fProjectionAnnotationModel.getPosition(annotation);
|
|
|
581 // take the first most fine grained match
|
|
|
582 if (position !is null && touches(selection, position))
|
|
|
583 if (found is null || found.includes(position.offset) && found.includes(position.offset + position.length)) {
|
|
|
584 found= position;
|
|
|
585 bestMatch= annotation;
|
|
|
586 }
|
|
|
587 }
|
|
|
588 }
|
|
|
589
|
|
|
590 if (bestMatch !is null) {
|
|
|
591 fProjectionAnnotationModel.collapse(bestMatch);
|
|
|
592 revealRange(selection.x, selection.y);
|
|
|
593 }
|
|
|
594 }
|
|
|
595 }
|
|
|
596
|
|
|
597 /*
|
|
|
598 * @since 3.2
|
|
|
599 */
|
|
|
600 private void collapseAll() {
|
|
|
601 int offset= 0;
|
|
|
602 IDocument doc= getDocument();
|
|
|
603 int length= doc is null ? 0 : doc.getLength();
|
|
|
604 if (isProjectionMode()) {
|
|
|
605 fProjectionAnnotationModel.collapseAll(offset, length);
|
|
|
606 }
|
|
|
607 }
|
|
|
608
|
|
|
609 /**
|
|
|
610 * Adds the given master range to the given projection document. While the
|
|
|
611 * modification is processed, the viewer no longer handles projection
|
|
|
612 * changes, as it is causing them.
|
|
|
613 *
|
|
|
614 * @param projection the projection document
|
|
|
615 * @param offset the offset in the master document
|
|
|
616 * @param length the length in the master document
|
|
|
617 * @throws BadLocationException in case the specified range is invalid
|
|
|
618 *
|
|
|
619 * @see ProjectionDocument#addMasterDocumentRange(int, int)
|
|
|
620 */
|
|
|
621 private void addMasterDocumentRange(ProjectionDocument projection, int offset, int length) throws BadLocationException {
|
|
|
622
|
|
|
623 if (fCommandQueue !is null) {
|
|
|
624 fCommandQueue.add(new ProjectionCommand(projection, ProjectionCommand.ADD, offset, length));
|
|
|
625 } else {
|
|
|
626 try {
|
|
|
627 fHandleProjectionChanges= false;
|
|
|
628 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=108258
|
|
|
629 // make sure the document range is strictly line based
|
|
|
630 int end= offset + length;
|
|
|
631 offset= toLineStart(projection.getMasterDocument(), offset, false);
|
|
|
632 length= toLineStart(projection.getMasterDocument(), end, true) - offset;
|
|
|
633 projection.addMasterDocumentRange(offset, length);
|
|
|
634 } finally {
|
|
|
635 fHandleProjectionChanges= true;
|
|
|
636 }
|
|
|
637 }
|
|
|
638 }
|
|
|
639
|
|
|
640 /**
|
|
|
641 * Removes the given master range from the given projection document. While the
|
|
|
642 * modification is processed, the viewer no longer handles projection
|
|
|
643 * changes, as it is causing them.
|
|
|
644 *
|
|
|
645 * @param projection the projection document
|
|
|
646 * @param offset the offset in the master document
|
|
|
647 * @param length the length in the master document
|
|
|
648 * @throws BadLocationException in case the specified range is invalid
|
|
|
649 *
|
|
|
650 * @see ProjectionDocument#removeMasterDocumentRange(int, int)
|
|
|
651 */
|
|
|
652 private void removeMasterDocumentRange(ProjectionDocument projection, int offset, int length) throws BadLocationException {
|
|
|
653 if (fCommandQueue !is null) {
|
|
|
654 fCommandQueue.add(new ProjectionCommand(projection, ProjectionCommand.REMOVE, offset, length));
|
|
|
655 } else {
|
|
|
656 try {
|
|
|
657 fHandleProjectionChanges= false;
|
|
|
658 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=108258
|
|
|
659 // make sure the document range is strictly line based
|
|
|
660 int end= offset + length;
|
|
|
661 offset= toLineStart(projection.getMasterDocument(), offset, false);
|
|
|
662 length= toLineStart(projection.getMasterDocument(), end, true) - offset;
|
|
|
663 projection.removeMasterDocumentRange(offset, length);
|
|
|
664 } finally {
|
|
|
665 fHandleProjectionChanges= true;
|
|
|
666 }
|
|
|
667 }
|
|
|
668 }
|
|
|
669
|
|
|
670 /**
|
|
|
671 * Returns the first line offset <= <code>offset</code>. If <code>testLastLine</code>
|
|
|
672 * is <code>true</code> and the offset is on last line then <code>offset</code> is returned.
|
|
|
673 *
|
|
|
674 * @param document the document
|
|
|
675 * @param offset the master document offset
|
|
|
676 * @param testLastLine <code>true</code> if the test for the last line should be performed
|
|
|
677 * @return the closest line offset >= <code>offset</code>
|
|
|
678 * @throws BadLocationException if the offset is invalid
|
|
|
679 * @since 3.2
|
|
|
680 */
|
|
|
681 private int toLineStart(IDocument document, int offset, bool testLastLine) throws BadLocationException {
|
|
|
682 if (document is null)
|
|
|
683 return offset;
|
|
|
684
|
|
|
685 if (testLastLine && offset >= document.getLineInformationOfOffset(document.getLength() - 1).getOffset())
|
|
|
686 return offset;
|
|
|
687
|
|
|
688 return document.getLineInformationOfOffset(offset).getOffset();
|
|
|
689 }
|
|
|
690
|
|
|
691 /*
|
|
|
692 * @see dwtx.jface.text.TextViewer#setVisibleRegion(int, int)
|
|
|
693 */
|
|
|
694 public void setVisibleRegion(int start, int length) {
|
|
|
695 fWasProjectionEnabled= isProjectionMode();
|
|
|
696 disableProjection();
|
|
|
697 super.setVisibleRegion(start, length);
|
|
|
698 }
|
|
|
699
|
|
|
700 /*
|
|
|
701 * @see dwtx.jface.text.TextViewer#setVisibleDocument(dwtx.jface.text.IDocument)
|
|
|
702 */
|
|
|
703 protected void setVisibleDocument(IDocument document) {
|
|
|
704 if (!isProjectionMode()) {
|
|
|
705 super.setVisibleDocument(document);
|
|
|
706 return;
|
|
|
707 }
|
|
|
708
|
|
|
709 // In projection mode we don't want to throw away the find/replace document adapter
|
|
|
710 FindReplaceDocumentAdapter adapter= fFindReplaceDocumentAdapter;
|
|
|
711 super.setVisibleDocument(document);
|
|
|
712 fFindReplaceDocumentAdapter= adapter;
|
|
|
713 }
|
|
|
714
|
|
|
715 /*
|
|
|
716 * @see dwtx.jface.text.TextViewer#resetVisibleRegion()
|
|
|
717 */
|
|
|
718 public void resetVisibleRegion() {
|
|
|
719 super.resetVisibleRegion();
|
|
|
720 if (fWasProjectionEnabled)
|
|
|
721 enableProjection();
|
|
|
722 }
|
|
|
723
|
|
|
724 /*
|
|
|
725 * @see dwtx.jface.text.ITextViewer#getVisibleRegion()
|
|
|
726 */
|
|
|
727 public IRegion getVisibleRegion() {
|
|
|
728 disableProjection();
|
|
|
729 IRegion visibleRegion= getModelCoverage();
|
|
|
730 if (visibleRegion is null)
|
|
|
731 visibleRegion= new Region(0, 0);
|
|
|
732
|
|
|
733 return visibleRegion;
|
|
|
734 }
|
|
|
735
|
|
|
736 /*
|
|
|
737 * @see dwtx.jface.text.ITextViewer#overlapsWithVisibleRegion(int,int)
|
|
|
738 */
|
|
|
739 public bool overlapsWithVisibleRegion(int offset, int length) {
|
|
|
740 disableProjection();
|
|
|
741 IRegion coverage= getModelCoverage();
|
|
|
742 if (coverage is null)
|
|
|
743 return false;
|
|
|
744
|
|
|
745 bool appending= (offset is coverage.getOffset() + coverage.getLength()) && length is 0;
|
|
|
746 return appending || TextUtilities.overlaps(coverage, new Region(offset, length));
|
|
|
747 }
|
|
|
748
|
|
|
749 /**
|
|
|
750 * Replace the visible document with the given document. Maintains the
|
|
|
751 * scroll offset and the selection.
|
|
|
752 *
|
|
|
753 * @param slave the visible document
|
|
|
754 */
|
|
|
755 private void replaceVisibleDocument(IDocument slave) {
|
|
|
756 if (fReplaceVisibleDocumentExecutionTrigger !is null) {
|
|
|
757 ReplaceVisibleDocumentExecutor executor= new ReplaceVisibleDocumentExecutor(slave);
|
|
|
758 executor.install(fReplaceVisibleDocumentExecutionTrigger);
|
|
|
759 } else
|
|
|
760 executeReplaceVisibleDocument(slave);
|
|
|
761 }
|
|
|
762
|
|
|
763
|
|
|
764 private void executeReplaceVisibleDocument(IDocument visibleDocument) {
|
|
|
765 StyledText textWidget= getTextWidget();
|
|
|
766 try {
|
|
|
767 if (textWidget !is null && !textWidget.isDisposed())
|
|
|
768 textWidget.setRedraw(false);
|
|
|
769
|
|
|
770 int topIndex= getTopIndex();
|
|
|
771 Point selection= getSelectedRange();
|
|
|
772 setVisibleDocument(visibleDocument);
|
|
|
773 Point currentSelection= getSelectedRange();
|
|
|
774 if (currentSelection.x !is selection.x || currentSelection.y !is selection.y)
|
|
|
775 setSelectedRange(selection.x, selection.y);
|
|
|
776 setTopIndex(topIndex);
|
|
|
777
|
|
|
778 } finally {
|
|
|
779 if (textWidget !is null && !textWidget.isDisposed())
|
|
|
780 textWidget.setRedraw(true);
|
|
|
781 }
|
|
|
782 }
|
|
|
783
|
|
|
784 /**
|
|
|
785 * Hides the given range by collapsing it. If requested, a redraw request is issued.
|
|
|
786 *
|
|
|
787 * @param offset the offset of the range to hide
|
|
|
788 * @param length the length of the range to hide
|
|
|
789 * @param fireRedraw <code>true</code> if a redraw request should be issued, <code>false</code> otherwise
|
|
|
790 * @throws BadLocationException in case the range is invalid
|
|
|
791 */
|
|
|
792 private void collapse(int offset, int length, bool fireRedraw) throws BadLocationException {
|
|
|
793 ProjectionDocument projection= null;
|
|
|
794
|
|
|
795 IDocument visibleDocument= getVisibleDocument();
|
|
|
796 if (visibleDocument instanceof ProjectionDocument)
|
|
|
797 projection= (ProjectionDocument) visibleDocument;
|
|
|
798 else {
|
|
|
799 IDocument master= getDocument();
|
|
|
800 IDocument slave= createSlaveDocument(getDocument());
|
|
|
801 if (slave instanceof ProjectionDocument) {
|
|
|
802 projection= (ProjectionDocument) slave;
|
|
|
803 addMasterDocumentRange(projection, 0, master.getLength());
|
|
|
804 replaceVisibleDocument(projection);
|
|
|
805 }
|
|
|
806 }
|
|
|
807
|
|
|
808 if (projection !is null)
|
|
|
809 removeMasterDocumentRange(projection, offset, length);
|
|
|
810
|
|
|
811 if (projection !is null && fireRedraw) {
|
|
|
812 // repaint line above to get the folding box
|
|
|
813 IDocument document= getDocument();
|
|
|
814 int line= document.getLineOfOffset(offset);
|
|
|
815 if (line > 0) {
|
|
|
816 IRegion info= document.getLineInformation(line - 1);
|
|
|
817 internalInvalidateTextPresentation(info.getOffset(), info.getLength());
|
|
|
818 }
|
|
|
819 }
|
|
|
820 }
|
|
|
821
|
|
|
822 /**
|
|
|
823 * Makes the given range visible again while not changing the folding state of any contained
|
|
|
824 * ranges. If requested, a redraw request is issued.
|
|
|
825 *
|
|
|
826 * @param offset the offset of the range to be expanded
|
|
|
827 * @param length the length of the range to be expanded
|
|
|
828 * @param fireRedraw <code>true</code> if a redraw request should be issued,
|
|
|
829 * <code>false</code> otherwise
|
|
|
830 * @throws BadLocationException in case the range is invalid
|
|
|
831 */
|
|
|
832 private void expand(int offset, int length, bool fireRedraw) throws BadLocationException {
|
|
|
833 IDocument slave= getVisibleDocument();
|
|
|
834 if (slave instanceof ProjectionDocument) {
|
|
|
835 ProjectionDocument projection= (ProjectionDocument) slave;
|
|
|
836
|
|
|
837 // expand
|
|
|
838 addMasterDocumentRange(projection, offset, length);
|
|
|
839
|
|
|
840 // collapse contained regions
|
|
|
841 ProjectionAnnotation[] collapsed= computeCollapsedNestedAnnotations(offset, length);
|
|
|
842 if (collapsed !is null) {
|
|
|
843 for (int i= 0; i < collapsed.length; i++) {
|
|
|
844 IRegion[] regions= computeCollapsedRegions(fProjectionAnnotationModel.getPosition(collapsed[i]));
|
|
|
845 if (regions !is null)
|
|
|
846 for (int j= 0; j < regions.length; j++)
|
|
|
847 removeMasterDocumentRange(projection, regions[j].getOffset(), regions[j].getLength());
|
|
|
848 }
|
|
|
849 }
|
|
|
850
|
|
|
851 // redraw if requested
|
|
|
852 if (fireRedraw)
|
|
|
853 internalInvalidateTextPresentation(offset, length);
|
|
|
854 }
|
|
|
855 }
|
|
|
856
|
|
|
857 /**
|
|
|
858 * Processes the request for catch up with the annotation model in the UI thread. If the current
|
|
|
859 * thread is not the UI thread or there are pending catch up requests, a new request is posted.
|
|
|
860 *
|
|
|
861 * @param event the annotation model event
|
|
|
862 */
|
|
|
863 protected final void processCatchupRequest(AnnotationModelEvent event) {
|
|
|
864 if (Display.getCurrent() !is null) {
|
|
|
865 bool run= false;
|
|
|
866 synchronized (fLock) {
|
|
|
867 run= fPendingRequests.isEmpty();
|
|
|
868 }
|
|
|
869 if (run) {
|
|
|
870
|
|
|
871 try {
|
|
|
872 catchupWithProjectionAnnotationModel(event);
|
|
|
873 } catch (BadLocationException x) {
|
|
|
874 throw new IllegalArgumentException();
|
|
|
875 }
|
|
|
876
|
|
|
877 } else
|
|
|
878 postCatchupRequest(event);
|
|
|
879 } else {
|
|
|
880 postCatchupRequest(event);
|
|
|
881 }
|
|
|
882 }
|
|
|
883
|
|
|
884 /**
|
|
|
885 * Posts the request for catch up with the annotation model into the UI thread.
|
|
|
886 *
|
|
|
887 * @param event the annotation model event
|
|
|
888 */
|
|
|
889 protected final void postCatchupRequest(final AnnotationModelEvent event) {
|
|
|
890 synchronized (fLock) {
|
|
|
891 fPendingRequests.add(event);
|
|
|
892 if (fPendingRequests.size() is 1) {
|
|
|
893 StyledText widget= getTextWidget();
|
|
|
894 if (widget !is null) {
|
|
|
895 Display display= widget.getDisplay();
|
|
|
896 if (display !is null) {
|
|
|
897 display.asyncExec(new Runnable() {
|
|
|
898 public void run() {
|
|
|
899 try {
|
|
|
900 while (true) {
|
|
|
901 AnnotationModelEvent ame= null;
|
|
|
902 synchronized (fLock) {
|
|
|
903 if (fPendingRequests.size() is 0)
|
|
|
904 return;
|
|
|
905 ame= (AnnotationModelEvent) fPendingRequests.remove(0);
|
|
|
906 }
|
|
|
907 catchupWithProjectionAnnotationModel(ame);
|
|
|
908 }
|
|
|
909 } catch (BadLocationException x) {
|
|
|
910 try {
|
|
|
911 catchupWithProjectionAnnotationModel(null);
|
|
|
912 } catch (BadLocationException x1) {
|
|
|
913 throw new IllegalArgumentException();
|
|
|
914 } finally {
|
|
|
915 synchronized (fLock) {
|
|
|
916 fPendingRequests.clear();
|
|
|
917 }
|
|
|
918 }
|
|
|
919 }
|
|
|
920 }
|
|
|
921 });
|
|
|
922 }
|
|
|
923 }
|
|
|
924 }
|
|
|
925 }
|
|
|
926 }
|
|
|
927
|
|
|
928 /**
|
|
|
929 * Tests whether the visible document's master document
|
|
|
930 * is identical to this viewer's document.
|
|
|
931 *
|
|
|
932 * @return <code>true</code> if the visible document's master is
|
|
|
933 * identical to this viewer's document
|
|
|
934 * @since 3.1
|
|
|
935 */
|
|
|
936 private bool isVisibleMasterDocumentSameAsDocument() {
|
|
|
937 IDocument visibleDocument= getVisibleDocument();
|
|
|
938 return (visibleDocument instanceof ProjectionDocument) && ((ProjectionDocument)visibleDocument).getMasterDocument() is getDocument();
|
|
|
939 }
|
|
|
940
|
|
|
941 /**
|
|
|
942 * Adapts the slave visual document of this viewer to the changes described
|
|
|
943 * in the annotation model event. When the event is <code>null</code>,
|
|
|
944 * this is identical to a world change event.
|
|
|
945 *
|
|
|
946 * @param event the annotation model event or <code>null</code>
|
|
|
947 * @exception BadLocationException in case the annotation model event is no longer in synchronization with the document
|
|
|
948 */
|
|
|
949 private void catchupWithProjectionAnnotationModel(AnnotationModelEvent event) throws BadLocationException {
|
|
|
950
|
|
|
951 if (event is null || !isVisibleMasterDocumentSameAsDocument()) {
|
|
|
952
|
|
|
953 fPendingAnnotationWorldChange= false;
|
|
|
954 reinitializeProjection();
|
|
|
955
|
|
|
956 } else if (event.isWorldChange()) {
|
|
|
957
|
|
|
958 if (event.isValid()) {
|
|
|
959 fPendingAnnotationWorldChange= false;
|
|
|
960 reinitializeProjection();
|
|
|
961 } else
|
|
|
962 fPendingAnnotationWorldChange= true;
|
|
|
963
|
|
|
964 } else if (fPendingAnnotationWorldChange) {
|
|
|
965 if (event.isValid()) {
|
|
|
966 fPendingAnnotationWorldChange= false;
|
|
|
967 reinitializeProjection();
|
|
|
968 }
|
|
|
969 } else {
|
|
|
970
|
|
|
971 Annotation[] addedAnnotations= event.getAddedAnnotations();
|
|
|
972 Annotation[] changedAnnotation= event.getChangedAnnotations();
|
|
|
973 Annotation[] removedAnnotations= event.getRemovedAnnotations();
|
|
|
974
|
|
|
975 fCommandQueue= new ProjectionCommandQueue();
|
|
|
976
|
|
|
977 bool isRedrawing= redraws();
|
|
|
978 int topIndex= isRedrawing ? getTopIndex() : -1;
|
|
|
979
|
|
|
980 processDeletions(event, removedAnnotations, true);
|
|
|
981 List coverage= new ArrayList();
|
|
|
982 processChanges(addedAnnotations, true, coverage);
|
|
|
983 processChanges(changedAnnotation, true, coverage);
|
|
|
984
|
|
|
985 ProjectionCommandQueue commandQueue= fCommandQueue;
|
|
|
986 fCommandQueue= null;
|
|
|
987
|
|
|
988 if (commandQueue.passedRedrawCostsThreshold()) {
|
|
|
989 setRedraw(false);
|
|
|
990 try {
|
|
|
991 executeProjectionCommands(commandQueue, false);
|
|
|
992 } catch (IllegalArgumentException x) {
|
|
|
993 reinitializeProjection();
|
|
|
994 } finally {
|
|
|
995 setRedraw(true, topIndex);
|
|
|
996 }
|
|
|
997 } else {
|
|
|
998 try {
|
|
|
999 bool fireRedraw= !commandQueue.passedInvalidationCostsThreshold();
|
|
|
1000 executeProjectionCommands(commandQueue, fireRedraw);
|
|
|
1001 if (!fireRedraw)
|
|
|
1002 invalidateTextPresentation();
|
|
|
1003 } catch (IllegalArgumentException x) {
|
|
|
1004 reinitializeProjection();
|
|
|
1005 }
|
|
|
1006 }
|
|
|
1007 }
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 private void executeProjectionCommands(ProjectionCommandQueue commandQueue, bool fireRedraw) throws BadLocationException {
|
|
|
1011
|
|
|
1012 ProjectionCommand command;
|
|
|
1013 Iterator e= commandQueue.iterator();
|
|
|
1014 while (e.hasNext()) {
|
|
|
1015 command= (ProjectionCommand) e.next();
|
|
|
1016 switch (command.fType) {
|
|
|
1017 case ProjectionCommand.ADD:
|
|
|
1018 addMasterDocumentRange(command.fProjection, command.fOffset, command.fLength);
|
|
|
1019 break;
|
|
|
1020 case ProjectionCommand.REMOVE:
|
|
|
1021 removeMasterDocumentRange(command.fProjection, command.fOffset, command.fLength);
|
|
|
1022 break;
|
|
|
1023 case ProjectionCommand.INVALIDATE_PRESENTATION:
|
|
|
1024 if (fireRedraw)
|
|
|
1025 invalidateTextPresentation(command.fOffset, command.fLength);
|
|
|
1026 break;
|
|
|
1027 }
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 commandQueue.clear();
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 private bool covers(int offset, int length, Position position) {
|
|
|
1034 if (!(position.offset is offset && position.length is length) && !position.isDeleted())
|
|
|
1035 return offset <= position.getOffset() && position.getOffset() + position.getLength() <= offset + length;
|
|
|
1036 return false;
|
|
|
1037 }
|
|
|
1038
|
|
|
1039 private ProjectionAnnotation[] computeCollapsedNestedAnnotations(int offset, int length) {
|
|
|
1040 List annotations= new ArrayList(5);
|
|
|
1041 Iterator e= fProjectionAnnotationModel.getAnnotationIterator();
|
|
|
1042 while (e.hasNext()) {
|
|
|
1043 ProjectionAnnotation annotation= (ProjectionAnnotation) e.next();
|
|
|
1044 if (annotation.isCollapsed()) {
|
|
|
1045 Position position= fProjectionAnnotationModel.getPosition(annotation);
|
|
|
1046 if (position is null) {
|
|
|
1047 // annotation might already be deleted, we will be informed later on about this deletion
|
|
|
1048 continue;
|
|
|
1049 }
|
|
|
1050 if (covers(offset, length, position))
|
|
|
1051 annotations.add(annotation);
|
|
|
1052 }
|
|
|
1053 }
|
|
|
1054
|
|
|
1055 if (annotations.size() > 0) {
|
|
|
1056 ProjectionAnnotation[] result= new ProjectionAnnotation[annotations.size()];
|
|
|
1057 annotations.toArray(result);
|
|
|
1058 return result;
|
|
|
1059 }
|
|
|
1060
|
|
|
1061 return null;
|
|
|
1062 }
|
|
|
1063
|
|
|
1064 private void internalInvalidateTextPresentation(int offset, int length) {
|
|
|
1065 if (fCommandQueue !is null) {
|
|
|
1066 fCommandQueue.add(new ProjectionCommand(offset, length));
|
|
|
1067 } else {
|
|
|
1068 invalidateTextPresentation(offset, length);
|
|
|
1069 }
|
|
|
1070 }
|
|
|
1071
|
|
|
1072 /*
|
|
|
1073 * We pass the removed annotation into this method for performance reasons only. Otherwise, they could be fetch from the event.
|
|
|
1074 */
|
|
|
1075 private void processDeletions(AnnotationModelEvent event, Annotation[] removedAnnotations, bool fireRedraw) throws BadLocationException {
|
|
|
1076 for (int i= 0; i < removedAnnotations.length; i++) {
|
|
|
1077 ProjectionAnnotation annotation= (ProjectionAnnotation) removedAnnotations[i];
|
|
|
1078 if (annotation.isCollapsed()) {
|
|
|
1079 Position expanded= event.getPositionOfRemovedAnnotation(annotation);
|
|
|
1080 expand(expanded.getOffset(), expanded.getLength(), fireRedraw);
|
|
|
1081 }
|
|
|
1082 }
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 /**
|
|
|
1086 * Computes the region that must be collapsed when the given position is the
|
|
|
1087 * position of an expanded projection annotation.
|
|
|
1088 *
|
|
|
1089 * @param position the position
|
|
|
1090 * @return the range that must be collapsed
|
|
|
1091 */
|
|
|
1092 public IRegion computeCollapsedRegion(Position position) {
|
|
|
1093 try {
|
|
|
1094 IDocument document= getDocument();
|
|
|
1095 if (document is null)
|
|
|
1096 return null;
|
|
|
1097
|
|
|
1098 int line= document.getLineOfOffset(position.getOffset());
|
|
|
1099 int offset= document.getLineOffset(line + 1);
|
|
|
1100
|
|
|
1101 int length= position.getLength() - (offset - position.getOffset());
|
|
|
1102 if (length > 0)
|
|
|
1103 return new Region(offset, length);
|
|
|
1104 } catch (BadLocationException x) {
|
|
|
1105 }
|
|
|
1106
|
|
|
1107 return null;
|
|
|
1108 }
|
|
|
1109
|
|
|
1110 /**
|
|
|
1111 * Computes the regions that must be collapsed when the given position is
|
|
|
1112 * the position of an expanded projection annotation.
|
|
|
1113 *
|
|
|
1114 * @param position the position
|
|
|
1115 * @return the ranges that must be collapsed, or <code>null</code> if
|
|
|
1116 * there are none
|
|
|
1117 * @since 3.1
|
|
|
1118 */
|
|
|
1119 IRegion[] computeCollapsedRegions(Position position) {
|
|
|
1120 try {
|
|
|
1121 IDocument document= getDocument();
|
|
|
1122 if (document is null)
|
|
|
1123 return null;
|
|
|
1124
|
|
|
1125 if (position instanceof IProjectionPosition) {
|
|
|
1126 IProjectionPosition projPosition= (IProjectionPosition) position;
|
|
|
1127 return projPosition.computeProjectionRegions(document);
|
|
|
1128 }
|
|
|
1129
|
|
|
1130 int line= document.getLineOfOffset(position.getOffset());
|
|
|
1131 int offset= document.getLineOffset(line + 1);
|
|
|
1132
|
|
|
1133 int length= position.getLength() - (offset - position.getOffset());
|
|
|
1134 if (length > 0)
|
|
|
1135 return new IRegion[] {new Region(offset, length)};
|
|
|
1136
|
|
|
1137 return null;
|
|
|
1138 } catch (BadLocationException x) {
|
|
|
1139 return null;
|
|
|
1140 }
|
|
|
1141 }
|
|
|
1142
|
|
|
1143 /**
|
|
|
1144 * Computes the collapsed region anchor for the given position. Assuming
|
|
|
1145 * that the position is the position of an expanded projection annotation,
|
|
|
1146 * the anchor is the region that is still visible after the projection
|
|
|
1147 * annotation has been collapsed.
|
|
|
1148 *
|
|
|
1149 * @param position the position
|
|
|
1150 * @return the collapsed region anchor
|
|
|
1151 */
|
|
|
1152 public Position computeCollapsedRegionAnchor(Position position) {
|
|
|
1153 try {
|
|
|
1154 IDocument document= getDocument();
|
|
|
1155 if (document is null)
|
|
|
1156 return null;
|
|
|
1157
|
|
|
1158 int captionOffset= position.getOffset();
|
|
|
1159 if (position instanceof IProjectionPosition)
|
|
|
1160 captionOffset+= ((IProjectionPosition) position).computeCaptionOffset(document);
|
|
|
1161
|
|
|
1162 IRegion lineInfo= document.getLineInformationOfOffset(captionOffset);
|
|
|
1163 return new Position(lineInfo.getOffset() + lineInfo.getLength(), 0);
|
|
|
1164 } catch (BadLocationException x) {
|
|
|
1165 }
|
|
|
1166 return null;
|
|
|
1167 }
|
|
|
1168
|
|
|
1169 private void processChanges(Annotation[] annotations, bool fireRedraw, List coverage) throws BadLocationException {
|
|
|
1170 for (int i= 0; i < annotations.length; i++) {
|
|
|
1171 ProjectionAnnotation annotation= (ProjectionAnnotation) annotations[i];
|
|
|
1172 Position position= fProjectionAnnotationModel.getPosition(annotation);
|
|
|
1173
|
|
|
1174 if (position is null)
|
|
|
1175 continue;
|
|
|
1176
|
|
|
1177 if (!covers(coverage, position)) {
|
|
|
1178 if (annotation.isCollapsed()) {
|
|
|
1179 coverage.add(position);
|
|
|
1180 IRegion[] regions= computeCollapsedRegions(position);
|
|
|
1181 if (regions !is null)
|
|
|
1182 for (int j= 0; j < regions.length; j++)
|
|
|
1183 collapse(regions[j].getOffset(), regions[j].getLength(), fireRedraw);
|
|
|
1184 } else {
|
|
|
1185 expand(position.getOffset(), position.getLength(), fireRedraw);
|
|
|
1186 }
|
|
|
1187 }
|
|
|
1188 }
|
|
|
1189 }
|
|
|
1190
|
|
|
1191 private bool covers(List coverage, Position position) {
|
|
|
1192 Iterator e= coverage.iterator();
|
|
|
1193 while (e.hasNext()) {
|
|
|
1194 Position p= (Position) e.next();
|
|
|
1195 if (p.getOffset() <= position.getOffset() && position.getOffset() + position.getLength() <= p.getOffset() + p.getLength())
|
|
|
1196 return true;
|
|
|
1197 }
|
|
|
1198 return false;
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 /**
|
|
|
1202 * Forces this viewer to throw away any old state and to initialize its content
|
|
|
1203 * from its projection annotation model.
|
|
|
1204 *
|
|
|
1205 * @throws BadLocationException in case something goes wrong during initialization
|
|
|
1206 */
|
|
|
1207 public final void reinitializeProjection() throws BadLocationException {
|
|
|
1208
|
|
|
1209 ProjectionDocument projection= null;
|
|
|
1210
|
|
|
1211 ISlaveDocumentManager manager= getSlaveDocumentManager();
|
|
|
1212 if (manager !is null) {
|
|
|
1213 IDocument master= getDocument();
|
|
|
1214 if (master !is null) {
|
|
|
1215 IDocument slave= manager.createSlaveDocument(master);
|
|
|
1216 if (slave instanceof ProjectionDocument) {
|
|
|
1217 projection= (ProjectionDocument) slave;
|
|
|
1218 addMasterDocumentRange(projection, 0, master.getLength());
|
|
|
1219 }
|
|
|
1220 }
|
|
|
1221 }
|
|
|
1222
|
|
|
1223 if (projection !is null) {
|
|
|
1224 Iterator e= fProjectionAnnotationModel.getAnnotationIterator();
|
|
|
1225 while (e.hasNext()) {
|
|
|
1226 ProjectionAnnotation annotation= (ProjectionAnnotation) e.next();
|
|
|
1227 if (annotation.isCollapsed()) {
|
|
|
1228 Position position= fProjectionAnnotationModel.getPosition(annotation);
|
|
|
1229 if (position !is null) {
|
|
|
1230 IRegion[] regions= computeCollapsedRegions(position);
|
|
|
1231 if (regions !is null)
|
|
|
1232 for (int i= 0; i < regions.length; i++)
|
|
|
1233 removeMasterDocumentRange(projection, regions[i].getOffset(), regions[i].getLength());
|
|
|
1234 }
|
|
|
1235 }
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 }
|
|
|
1239
|
|
|
1240 replaceVisibleDocument(projection);
|
|
|
1241 }
|
|
|
1242
|
|
|
1243 /*
|
|
|
1244 * @see dwtx.jface.text.TextViewer#handleVerifyEvent(dwt.events.VerifyEvent)
|
|
|
1245 */
|
|
|
1246 protected void handleVerifyEvent(VerifyEvent e) {
|
|
|
1247 IRegion modelRange= event2ModelRange(e);
|
|
|
1248 if (exposeModelRange(modelRange))
|
|
|
1249 e.doit= false;
|
|
|
1250 else
|
|
|
1251 super.handleVerifyEvent(e);
|
|
|
1252 }
|
|
|
1253
|
|
|
1254 /**
|
|
|
1255 * Adds the give column as last column to this viewer's vertical ruler.
|
|
|
1256 *
|
|
|
1257 * @param column the column to be added
|
|
|
1258 */
|
|
|
1259 public void addVerticalRulerColumn(IVerticalRulerColumn column) {
|
|
|
1260 IVerticalRuler ruler= getVerticalRuler();
|
|
|
1261 if (ruler instanceof CompositeRuler) {
|
|
|
1262 CompositeRuler compositeRuler= (CompositeRuler) ruler;
|
|
|
1263 compositeRuler.addDecorator(99, column);
|
|
|
1264 }
|
|
|
1265 }
|
|
|
1266
|
|
|
1267 /**
|
|
|
1268 * Removes the give column from this viewer's vertical ruler.
|
|
|
1269 *
|
|
|
1270 * @param column the column to be removed
|
|
|
1271 */
|
|
|
1272 public void removeVerticalRulerColumn(IVerticalRulerColumn column) {
|
|
|
1273 IVerticalRuler ruler= getVerticalRuler();
|
|
|
1274 if (ruler instanceof CompositeRuler) {
|
|
|
1275 CompositeRuler compositeRuler= (CompositeRuler) ruler;
|
|
|
1276 compositeRuler.removeDecorator(column);
|
|
|
1277 }
|
|
|
1278 }
|
|
|
1279
|
|
|
1280 /*
|
|
|
1281 * @see dwtx.jface.text.ITextViewerExtension5#exposeModelRange(dwtx.jface.text.IRegion)
|
|
|
1282 */
|
|
|
1283 public bool exposeModelRange(IRegion modelRange) {
|
|
|
1284 if (isProjectionMode())
|
|
|
1285 return fProjectionAnnotationModel.expandAll(modelRange.getOffset(), modelRange.getLength());
|
|
|
1286
|
|
|
1287 if (!overlapsWithVisibleRegion(modelRange.getOffset(), modelRange.getLength())) {
|
|
|
1288 resetVisibleRegion();
|
|
|
1289 return true;
|
|
|
1290 }
|
|
|
1291
|
|
|
1292 return false;
|
|
|
1293 }
|
|
|
1294
|
|
|
1295 /*
|
|
|
1296 * @see dwtx.jface.text.source.SourceViewer#setRangeIndication(int, int, bool)
|
|
|
1297 */
|
|
|
1298 public void setRangeIndication(int offset, int length, bool moveCursor) {
|
|
|
1299 IRegion rangeIndication= getRangeIndication();
|
|
|
1300 if (moveCursor && fProjectionAnnotationModel !is null && (rangeIndication is null || offset !is rangeIndication.getOffset() || length !is rangeIndication.getLength())) {
|
|
|
1301 List expand= new ArrayList(2);
|
|
|
1302 // expand the immediate effected collapsed regions
|
|
|
1303 Iterator iterator= fProjectionAnnotationModel.getAnnotationIterator();
|
|
|
1304 while (iterator.hasNext()) {
|
|
|
1305 ProjectionAnnotation annotation= (ProjectionAnnotation)iterator.next();
|
|
|
1306 if (annotation.isCollapsed() && willAutoExpand(fProjectionAnnotationModel.getPosition(annotation), offset, length))
|
|
|
1307 expand.add(annotation);
|
|
|
1308 }
|
|
|
1309
|
|
|
1310 if (!expand.isEmpty()) {
|
|
|
1311 Iterator e= expand.iterator();
|
|
|
1312 while (e.hasNext())
|
|
|
1313 fProjectionAnnotationModel.expand((Annotation)e.next());
|
|
|
1314 }
|
|
|
1315 }
|
|
|
1316 super.setRangeIndication(offset, length, moveCursor);
|
|
|
1317 }
|
|
|
1318
|
|
|
1319 private bool willAutoExpand(Position position, int offset, int length) {
|
|
|
1320 if (position is null || position.isDeleted())
|
|
|
1321 return false;
|
|
|
1322 // right or left boundary
|
|
|
1323 if (position.getOffset() is offset || position.getOffset() + position.getLength() is offset + length)
|
|
|
1324 return true;
|
|
|
1325 // completely embedded in given position
|
|
|
1326 if (position.getOffset() < offset && offset + length < position.getOffset() + position.getLength())
|
|
|
1327 return true;
|
|
|
1328 return false;
|
|
|
1329 }
|
|
|
1330
|
|
|
1331 /*
|
|
|
1332 * @see dwtx.jface.text.source.SourceViewer#handleDispose()
|
|
|
1333 * @since 3.0
|
|
|
1334 */
|
|
|
1335 protected void handleDispose() {
|
|
|
1336 fWasProjectionEnabled= false;
|
|
|
1337 super.handleDispose();
|
|
|
1338 }
|
|
|
1339
|
|
|
1340 /*
|
|
|
1341 * @see dwtx.jface.text.TextViewer#handleVisibleDocumentAboutToBeChanged(dwtx.jface.text.DocumentEvent)
|
|
|
1342 */
|
|
|
1343 protected void handleVisibleDocumentChanged(DocumentEvent event) {
|
|
|
1344 if (fHandleProjectionChanges && event instanceof ProjectionDocumentEvent && isProjectionMode()) {
|
|
|
1345 ProjectionDocumentEvent e= (ProjectionDocumentEvent) event;
|
|
|
1346
|
|
|
1347 DocumentEvent master= e.getMasterEvent();
|
|
|
1348 if (master !is null)
|
|
|
1349 fReplaceVisibleDocumentExecutionTrigger= master.getDocument();
|
|
|
1350
|
|
|
1351 try {
|
|
|
1352
|
|
|
1353 int replaceLength= e.getText() is null ? 0 : e.getText().length();
|
|
|
1354 if (ProjectionDocumentEvent.PROJECTION_CHANGE is e.getChangeType()) {
|
|
|
1355 if (e.getLength() is 0 && replaceLength !is 0)
|
|
|
1356 fProjectionAnnotationModel.expandAll(e.getMasterOffset(), e.getMasterLength());
|
|
|
1357 } else if (master !is null && (replaceLength > 0 || fDeletedLines > 1)) {
|
|
|
1358 try {
|
|
|
1359 int numberOfLines= e.getDocument().getNumberOfLines(e.getOffset(), replaceLength);
|
|
|
1360 if (numberOfLines > 1 || fDeletedLines > 1)
|
|
|
1361 fProjectionAnnotationModel.expandAll(master.getOffset(), master.getLength());
|
|
|
1362 } catch (BadLocationException x) {
|
|
|
1363 }
|
|
|
1364 }
|
|
|
1365
|
|
|
1366 } finally {
|
|
|
1367 fReplaceVisibleDocumentExecutionTrigger= null;
|
|
|
1368 }
|
|
|
1369
|
|
|
1370 }
|
|
|
1371 }
|
|
|
1372
|
|
|
1373 /*
|
|
|
1374 * @see dwtx.jface.text.TextViewer#handleVisibleDocumentAboutToBeChanged(dwtx.jface.text.DocumentEvent)
|
|
|
1375 * @since 3.1
|
|
|
1376 */
|
|
|
1377 protected void handleVisibleDocumentAboutToBeChanged(DocumentEvent event) {
|
|
|
1378 if (fHandleProjectionChanges && event instanceof ProjectionDocumentEvent && isProjectionMode()) {
|
|
|
1379 int deletedLines;
|
|
|
1380 try {
|
|
|
1381 deletedLines= event.getDocument().getNumberOfLines(event.getOffset(), event.getLength());
|
|
|
1382 } catch (BadLocationException e1) {
|
|
|
1383 deletedLines= 0;
|
|
|
1384 }
|
|
|
1385 fDeletedLines= deletedLines;
|
|
|
1386 }
|
|
|
1387 }
|
|
|
1388
|
|
|
1389 /*
|
|
|
1390 * @see dwtx.jface.text.ITextViewerExtension5#getCoveredModelRanges(dwtx.jface.text.IRegion)
|
|
|
1391 */
|
|
|
1392 public IRegion[] getCoveredModelRanges(IRegion modelRange) {
|
|
|
1393 if (fInformationMapping is null)
|
|
|
1394 return new IRegion[] { new Region(modelRange.getOffset(), modelRange.getLength()) };
|
|
|
1395
|
|
|
1396 if (fInformationMapping instanceof IDocumentInformationMappingExtension) {
|
|
|
1397 IDocumentInformationMappingExtension extension= (IDocumentInformationMappingExtension) fInformationMapping;
|
|
|
1398 try {
|
|
|
1399 return extension.getExactCoverage(modelRange);
|
|
|
1400 } catch (BadLocationException x) {
|
|
|
1401 }
|
|
|
1402 }
|
|
|
1403
|
|
|
1404 return null;
|
|
|
1405 }
|
|
|
1406
|
|
|
1407 /*
|
|
|
1408 * @see dwtx.jface.text.ITextOperationTarget#doOperation(int)
|
|
|
1409 */
|
|
|
1410 public void doOperation(int operation) {
|
|
|
1411 switch (operation) {
|
|
|
1412 case TOGGLE:
|
|
|
1413 if (canDoOperation(TOGGLE)) {
|
|
|
1414 if (!isProjectionMode()) {
|
|
|
1415 enableProjection();
|
|
|
1416 } else {
|
|
|
1417 expandAll();
|
|
|
1418 disableProjection();
|
|
|
1419 }
|
|
|
1420 return;
|
|
|
1421 }
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 if (!isProjectionMode()) {
|
|
|
1425 super.doOperation(operation);
|
|
|
1426 return;
|
|
|
1427 }
|
|
|
1428
|
|
|
1429 StyledText textWidget= getTextWidget();
|
|
|
1430 if (textWidget is null)
|
|
|
1431 return;
|
|
|
1432
|
|
|
1433 Point selection= null;
|
|
|
1434 switch (operation) {
|
|
|
1435
|
|
|
1436 case CUT:
|
|
|
1437
|
|
|
1438 if (redraws()) {
|
|
|
1439 selection= getSelectedRange();
|
|
|
1440 if (exposeModelRange(new Region(selection.x, selection.y)))
|
|
|
1441 return;
|
|
|
1442
|
|
|
1443 if (selection.y is 0)
|
|
|
1444 copyMarkedRegion(true);
|
|
|
1445 else
|
|
|
1446 copyToClipboard(selection.x, selection.y, true, textWidget);
|
|
|
1447
|
|
|
1448 selection= textWidget.getSelectionRange();
|
|
|
1449 fireSelectionChanged(selection.x, selection.y);
|
|
|
1450 }
|
|
|
1451 break;
|
|
|
1452
|
|
|
1453 case COPY:
|
|
|
1454
|
|
|
1455 if (redraws()) {
|
|
|
1456 selection= getSelectedRange();
|
|
|
1457 if (selection.y is 0)
|
|
|
1458 copyMarkedRegion(false);
|
|
|
1459 else
|
|
|
1460 copyToClipboard(selection.x, selection.y, false, textWidget);
|
|
|
1461 }
|
|
|
1462 break;
|
|
|
1463
|
|
|
1464 case DELETE:
|
|
|
1465
|
|
|
1466 if (redraws()) {
|
|
|
1467 try {
|
|
|
1468 selection= getSelectedRange();
|
|
|
1469 Point widgetSelection= textWidget.getSelectionRange();
|
|
|
1470 if (selection.y is 0 || selection.y is widgetSelection.y)
|
|
|
1471 getTextWidget().invokeAction(ST.DELETE_NEXT);
|
|
|
1472 else
|
|
|
1473 deleteTextRange(selection.x, selection.y, textWidget);
|
|
|
1474
|
|
|
1475 selection= textWidget.getSelectionRange();
|
|
|
1476 fireSelectionChanged(selection.x, selection.y);
|
|
|
1477
|
|
|
1478 } catch (BadLocationException x) {
|
|
|
1479 // ignore
|
|
|
1480 }
|
|
|
1481 }
|
|
|
1482 break;
|
|
|
1483
|
|
|
1484
|
|
|
1485 case EXPAND_ALL:
|
|
|
1486 if (redraws())
|
|
|
1487 expandAll();
|
|
|
1488 break;
|
|
|
1489
|
|
|
1490 case EXPAND:
|
|
|
1491 if (redraws()) {
|
|
|
1492 expand();
|
|
|
1493 }
|
|
|
1494 break;
|
|
|
1495
|
|
|
1496 case COLLAPSE_ALL:
|
|
|
1497 if (redraws())
|
|
|
1498 collapseAll();
|
|
|
1499 break;
|
|
|
1500
|
|
|
1501 case COLLAPSE:
|
|
|
1502 if (redraws()) {
|
|
|
1503 collapse();
|
|
|
1504 }
|
|
|
1505 break;
|
|
|
1506
|
|
|
1507 default:
|
|
|
1508 super.doOperation(operation);
|
|
|
1509 }
|
|
|
1510 }
|
|
|
1511
|
|
|
1512 /*
|
|
|
1513 * @see dwtx.jface.text.source.SourceViewer#canDoOperation(int)
|
|
|
1514 */
|
|
|
1515 public bool canDoOperation(int operation) {
|
|
|
1516
|
|
|
1517 switch (operation) {
|
|
|
1518 case COLLAPSE:
|
|
|
1519 case COLLAPSE_ALL:
|
|
|
1520 case EXPAND:
|
|
|
1521 case EXPAND_ALL:
|
|
|
1522 return isProjectionMode();
|
|
|
1523 case TOGGLE:
|
|
|
1524 return isProjectionMode() || !isSegmented();
|
|
|
1525 }
|
|
|
1526
|
|
|
1527 return super.canDoOperation(operation);
|
|
|
1528 }
|
|
|
1529
|
|
|
1530 private bool isSegmented() {
|
|
|
1531 IDocument document= getDocument();
|
|
|
1532 int length= document is null ? 0 : document.getLength();
|
|
|
1533 IRegion visible= getModelCoverage();
|
|
|
1534 bool isSegmented= visible !is null && !visible.equals(new Region(0, length));
|
|
|
1535 return isSegmented;
|
|
|
1536 }
|
|
|
1537
|
|
|
1538 private IRegion getMarkedRegion() {
|
|
|
1539 if (getTextWidget() is null)
|
|
|
1540 return null;
|
|
|
1541
|
|
|
1542 if (fMarkPosition is null || fMarkPosition.isDeleted())
|
|
|
1543 return null;
|
|
|
1544
|
|
|
1545 int start= fMarkPosition.getOffset();
|
|
|
1546 int end= getSelectedRange().x;
|
|
|
1547
|
|
|
1548 return start > end ? new Region (end, start - end) : new Region(start, end - start);
|
|
|
1549 }
|
|
|
1550
|
|
|
1551 /*
|
|
|
1552 * @see dwtx.jface.text.TextViewer#copyMarkedRegion(bool)
|
|
|
1553 */
|
|
|
1554 protected void copyMarkedRegion(bool delete) {
|
|
|
1555 IRegion markedRegion= getMarkedRegion();
|
|
|
1556 if (markedRegion !is null)
|
|
|
1557 copyToClipboard(markedRegion.getOffset(), markedRegion.getLength(), delete, getTextWidget());
|
|
|
1558 }
|
|
|
1559
|
|
|
1560 private void copyToClipboard(int offset, int length, bool delete, StyledText textWidget) {
|
|
|
1561
|
|
|
1562 String copyText= null;
|
|
|
1563
|
|
|
1564 try {
|
|
|
1565 IDocument document= getDocument();
|
|
|
1566 copyText= document.get(offset, length);
|
|
|
1567 } catch (BadLocationException ex) {
|
|
|
1568 // XXX: should log here, but JFace Text has no Log
|
|
|
1569 // As a fallback solution let the widget handle this
|
|
|
1570 textWidget.copy();
|
|
|
1571 }
|
|
|
1572
|
|
|
1573 if (copyText !is null && copyText.equals(textWidget.getSelectionText())) {
|
|
|
1574 /*
|
|
|
1575 * XXX: Reduce pain of https://bugs.eclipse.org/bugs/show_bug.cgi?id=64498
|
|
|
1576 * by letting the widget handle the copy operation in this special case.
|
|
|
1577 */
|
|
|
1578 textWidget.copy();
|
|
|
1579 } else if (copyText !is null) {
|
|
|
1580
|
|
|
1581 Clipboard clipboard= new Clipboard(textWidget.getDisplay());
|
|
|
1582
|
|
|
1583 try {
|
|
|
1584 Transfer[] dataTypes= new Transfer[] { TextTransfer.getInstance() };
|
|
|
1585 Object[] data= new Object[] { copyText };
|
|
|
1586 try {
|
|
|
1587 clipboard.setContents(data, dataTypes);
|
|
|
1588 } catch (DWTError e) {
|
|
|
1589 if (e.code !is DND.ERROR_CANNOT_SET_CLIPBOARD)
|
|
|
1590 throw e;
|
|
|
1591 /*
|
|
|
1592 * TODO see https://bugs.eclipse.org/bugs/show_bug.cgi?id=59459
|
|
|
1593 * we should either log and/or inform the user
|
|
|
1594 * silently fail for now.
|
|
|
1595 */
|
|
|
1596 return;
|
|
|
1597 }
|
|
|
1598
|
|
|
1599 } finally {
|
|
|
1600 clipboard.dispose();
|
|
|
1601 }
|
|
|
1602 }
|
|
|
1603
|
|
|
1604 if (delete) {
|
|
|
1605 try {
|
|
|
1606 deleteTextRange(offset, length, textWidget);
|
|
|
1607 } catch (BadLocationException x) {
|
|
|
1608 // XXX: should log here, but JFace Text has no Log
|
|
|
1609 }
|
|
|
1610 }
|
|
|
1611 }
|
|
|
1612
|
|
|
1613 private void deleteTextRange(int offset, int length, StyledText textWidget) throws BadLocationException {
|
|
|
1614 getDocument().replace(offset, length, ""); //$NON-NLS-1$
|
|
|
1615 int widgetCaret= modelOffset2WidgetOffset(offset);
|
|
|
1616 if (widgetCaret > -1)
|
|
|
1617 textWidget.setSelection(widgetCaret);
|
|
|
1618 }
|
|
|
1619
|
|
|
1620 /**
|
|
|
1621 * Adapts the behavior of the super class to respect line based folding.
|
|
|
1622 *
|
|
|
1623 * @param widgetSelection the widget selection
|
|
|
1624 * @return the model selection while respecting line based folding
|
|
|
1625 */
|
|
|
1626 protected Point widgetSelection2ModelSelection(Point widgetSelection) {
|
|
|
1627
|
|
|
1628 if (!isProjectionMode())
|
|
|
1629 return super.widgetSelection2ModelSelection(widgetSelection);
|
|
|
1630
|
|
|
1631 /*
|
|
|
1632 * There is one requirement that governs preservation of logical
|
|
|
1633 * positions:
|
|
|
1634 *
|
|
|
1635 * 1) a selection with widget_length is 0 should never expand to have
|
|
|
1636 * model_length > 0.
|
|
|
1637 *
|
|
|
1638 * There are a number of ambiguities to resolve with projection regions.
|
|
|
1639 * A projected region P has a widget-length of zero. Its widget offset
|
|
|
1640 * may interact with the selection S in various ways:
|
|
|
1641 *
|
|
|
1642 * A) P.widget_offset lies at the caret, S.widget_length is zero.
|
|
|
1643 * Requirement 1 applies. S is *behind* P (done so by widgetRange2ModelRange).
|
|
|
1644 *
|
|
|
1645 * B) P.widget_offset lies inside the widget selection. This case is
|
|
|
1646 * easy: P is included in S, which is automatically done so by
|
|
|
1647 * widgetRange2ModelRange.
|
|
|
1648 *
|
|
|
1649 * C) P.widget_offset lies at S.widget_end: This is
|
|
|
1650 * arguable - our policy is to include P if it belongs to a projection
|
|
|
1651 * annotation that overlaps with the widget selection.
|
|
|
1652 *
|
|
|
1653 * D) P.widget_offset lies at S.widget_offset: Arguable - our policy
|
|
|
1654 * is to include P if it belongs to a projection annotation that
|
|
|
1655 * overlaps with the widget selection
|
|
|
1656 */
|
|
|
1657 IRegion modelSelection= widgetRange2ModelRange(new Region(widgetSelection.x, widgetSelection.y));
|
|
|
1658 if (modelSelection is null)
|
|
|
1659 return null;
|
|
|
1660
|
|
|
1661 int modelOffset= modelSelection.getOffset();
|
|
|
1662 int modelEndOffset= modelOffset + modelSelection.getLength();
|
|
|
1663
|
|
|
1664 /* Case A: never expand a zero-length selection. S is *behind* P. */
|
|
|
1665 if (widgetSelection.y is 0)
|
|
|
1666 return new Point(modelEndOffset, 0);
|
|
|
1667
|
|
|
1668 int widgetSelectionExclusiveEnd= widgetSelection.x + widgetSelection.y;
|
|
|
1669 Position[] annotationPositions= computeOverlappingAnnotationPositions(modelSelection);
|
|
|
1670 for (int i= 0; i < annotationPositions.length; i++) {
|
|
|
1671 IRegion[] regions= computeCollapsedRegions(annotationPositions[i]);
|
|
|
1672 if (regions is null)
|
|
|
1673 continue;
|
|
|
1674 for (int j= 0; j < regions.length; j++) {
|
|
|
1675 IRegion modelRange= regions[j];
|
|
|
1676 IRegion widgetRange= modelRange2ClosestWidgetRange(modelRange);
|
|
|
1677 // only take collapsed ranges, i.e. widget length is 0
|
|
|
1678 if (widgetRange !is null && widgetRange.getLength() is 0) {
|
|
|
1679 int widgetOffset= widgetRange.getOffset();
|
|
|
1680 // D) region is collapsed at S.widget_offset
|
|
|
1681 if (widgetOffset is widgetSelection.x)
|
|
|
1682 modelOffset= Math.min(modelOffset, modelRange.getOffset());
|
|
|
1683 // C) region is collapsed at S.widget_end
|
|
|
1684 else if (widgetOffset is widgetSelectionExclusiveEnd)
|
|
|
1685 modelEndOffset= Math.max(modelEndOffset, modelRange.getOffset() + modelRange.getLength());
|
|
|
1686 }
|
|
|
1687 }
|
|
|
1688 }
|
|
|
1689 return new Point(modelOffset, modelEndOffset - modelOffset);
|
|
|
1690 }
|
|
|
1691
|
|
|
1692 /**
|
|
|
1693 * Returns the positions of all annotations that intersect with
|
|
|
1694 * <code>modelSelection</code> and that are at least partly visible.
|
|
|
1695 * @param modelSelection a model range
|
|
|
1696 * @return the positions of all annotations that intersect with
|
|
|
1697 * <code>modelSelection</code>
|
|
|
1698 * @since 3.1
|
|
|
1699 */
|
|
|
1700 private Position[] computeOverlappingAnnotationPositions(IRegion modelSelection) {
|
|
|
1701 List positions= new ArrayList();
|
|
|
1702 for (Iterator e= fProjectionAnnotationModel.getAnnotationIterator(); e.hasNext();) {
|
|
|
1703 ProjectionAnnotation annotation= (ProjectionAnnotation) e.next();
|
|
|
1704 Position position= fProjectionAnnotationModel.getPosition(annotation);
|
|
|
1705 if (position !is null && position.overlapsWith(modelSelection.getOffset(), modelSelection.getLength()) && modelRange2WidgetRange(position) !is null)
|
|
|
1706 positions.add(position);
|
|
|
1707 }
|
|
|
1708 return (Position[]) positions.toArray(new Position[positions.size()]);
|
|
|
1709 }
|
|
|
1710
|
|
|
1711 /*
|
|
|
1712 * @see dwtx.jface.text.TextViewer#getFindReplaceDocumentAdapter()
|
|
|
1713 */
|
|
|
1714 protected FindReplaceDocumentAdapter getFindReplaceDocumentAdapter() {
|
|
|
1715 if (fFindReplaceDocumentAdapter is null) {
|
|
|
1716 IDocument document= isProjectionMode() ? getDocument() : getVisibleDocument();
|
|
|
1717 fFindReplaceDocumentAdapter= new FindReplaceDocumentAdapter(document);
|
|
|
1718 }
|
|
|
1719 return fFindReplaceDocumentAdapter;
|
|
|
1720 }
|
|
|
1721
|
|
|
1722 /*
|
|
|
1723 * @see dwtx.jface.text.TextViewer#findAndSelect(int, java.lang.String, bool, bool, bool, bool)
|
|
|
1724 */
|
|
|
1725 protected int findAndSelect(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, bool regExSearch) {
|
|
|
1726
|
|
|
1727 if (!isProjectionMode())
|
|
|
1728 return super.findAndSelect(startPosition, findString, forwardSearch, caseSensitive, wholeWord, regExSearch);
|
|
|
1729
|
|
|
1730 StyledText textWidget= getTextWidget();
|
|
|
1731 if (textWidget is null)
|
|
|
1732 return -1;
|
|
|
1733
|
|
|
1734 try {
|
|
|
1735
|
|
|
1736 IRegion matchRegion= getFindReplaceDocumentAdapter().find(startPosition, findString, forwardSearch, caseSensitive, wholeWord, regExSearch);
|
|
|
1737 if (matchRegion !is null) {
|
|
|
1738 exposeModelRange(matchRegion);
|
|
|
1739 revealRange(matchRegion.getOffset(), matchRegion.getLength());
|
|
|
1740 setSelectedRange(matchRegion.getOffset(), matchRegion.getLength());
|
|
|
1741 return matchRegion.getOffset();
|
|
|
1742 }
|
|
|
1743
|
|
|
1744 } catch (BadLocationException x) {
|
|
|
1745 }
|
|
|
1746
|
|
|
1747 return -1;
|
|
|
1748 }
|
|
|
1749
|
|
|
1750 /*
|
|
|
1751 * @see dwtx.jface.text.TextViewer#findAndSelectInRange(int, java.lang.String, bool, bool, bool, int, int, bool)
|
|
|
1752 */
|
|
|
1753 protected int findAndSelectInRange(int startPosition, String findString, bool forwardSearch, bool caseSensitive, bool wholeWord, int rangeOffset, int rangeLength, bool regExSearch) {
|
|
|
1754
|
|
|
1755 if (!isProjectionMode())
|
|
|
1756 return super.findAndSelectInRange(startPosition, findString, forwardSearch, caseSensitive, wholeWord, rangeOffset, rangeLength, regExSearch);
|
|
|
1757
|
|
|
1758 StyledText textWidget= getTextWidget();
|
|
|
1759 if (textWidget is null)
|
|
|
1760 return -1;
|
|
|
1761
|
|
|
1762 try {
|
|
|
1763
|
|
|
1764 int modelOffset= startPosition;
|
|
|
1765 if (forwardSearch && (startPosition is -1 || startPosition < rangeOffset)) {
|
|
|
1766 modelOffset= rangeOffset;
|
|
|
1767 } else if (!forwardSearch && (startPosition is -1 || startPosition > rangeOffset + rangeLength)) {
|
|
|
1768 modelOffset= rangeOffset + rangeLength;
|
|
|
1769 }
|
|
|
1770
|
|
|
1771 IRegion matchRegion= getFindReplaceDocumentAdapter().find(modelOffset, findString, forwardSearch, caseSensitive, wholeWord, regExSearch);
|
|
|
1772 if (matchRegion !is null) {
|
|
|
1773 int offset= matchRegion.getOffset();
|
|
|
1774 int length= matchRegion.getLength();
|
|
|
1775 if (rangeOffset <= offset && offset + length <= rangeOffset + rangeLength) {
|
|
|
1776 exposeModelRange(matchRegion);
|
|
|
1777 revealRange(offset, length);
|
|
|
1778 setSelectedRange(offset, length);
|
|
|
1779 return offset;
|
|
|
1780 }
|
|
|
1781 }
|
|
|
1782
|
|
|
1783 } catch (BadLocationException x) {
|
|
|
1784 }
|
|
|
1785
|
|
|
1786 return -1;
|
|
|
1787 }
|
|
|
1788 }
|
