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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 dwtx.jface.text.TextAttribute;
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14
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131
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15 import dwtx.jface.text.IDocumentPartitioningListener; // packageimport
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16 import dwtx.jface.text.DefaultTextHover; // packageimport
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17 import dwtx.jface.text.AbstractInformationControl; // packageimport
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18 import dwtx.jface.text.TextUtilities; // packageimport
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19 import dwtx.jface.text.IInformationControlCreatorExtension; // packageimport
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20 import dwtx.jface.text.AbstractInformationControlManager; // packageimport
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21 import dwtx.jface.text.ITextViewerExtension2; // packageimport
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22 import dwtx.jface.text.IDocumentPartitioner; // packageimport
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23 import dwtx.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport
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24 import dwtx.jface.text.ITextSelection; // packageimport
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25 import dwtx.jface.text.Document; // packageimport
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26 import dwtx.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport
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27 import dwtx.jface.text.ITextListener; // packageimport
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28 import dwtx.jface.text.BadPartitioningException; // packageimport
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29 import dwtx.jface.text.ITextViewerExtension5; // packageimport
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30 import dwtx.jface.text.IDocumentPartitionerExtension3; // packageimport
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31 import dwtx.jface.text.IUndoManager; // packageimport
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32 import dwtx.jface.text.ITextHoverExtension2; // packageimport
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33 import dwtx.jface.text.IRepairableDocument; // packageimport
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34 import dwtx.jface.text.IRewriteTarget; // packageimport
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35 import dwtx.jface.text.DefaultPositionUpdater; // packageimport
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36 import dwtx.jface.text.RewriteSessionEditProcessor; // packageimport
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37 import dwtx.jface.text.TextViewerHoverManager; // packageimport
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38 import dwtx.jface.text.DocumentRewriteSession; // packageimport
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39 import dwtx.jface.text.TextViewer; // packageimport
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40 import dwtx.jface.text.ITextViewerExtension8; // packageimport
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41 import dwtx.jface.text.RegExMessages; // packageimport
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42 import dwtx.jface.text.IDelayedInputChangeProvider; // packageimport
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43 import dwtx.jface.text.ITextOperationTargetExtension; // packageimport
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44 import dwtx.jface.text.IWidgetTokenOwner; // packageimport
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45 import dwtx.jface.text.IViewportListener; // packageimport
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46 import dwtx.jface.text.GapTextStore; // packageimport
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47 import dwtx.jface.text.MarkSelection; // packageimport
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48 import dwtx.jface.text.IDocumentPartitioningListenerExtension; // packageimport
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49 import dwtx.jface.text.IDocumentAdapterExtension; // packageimport
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50 import dwtx.jface.text.IInformationControlExtension; // packageimport
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51 import dwtx.jface.text.IDocumentPartitioningListenerExtension2; // packageimport
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52 import dwtx.jface.text.DefaultDocumentAdapter; // packageimport
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53 import dwtx.jface.text.ITextViewerExtension3; // packageimport
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54 import dwtx.jface.text.IInformationControlCreator; // packageimport
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55 import dwtx.jface.text.TypedRegion; // packageimport
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56 import dwtx.jface.text.ISynchronizable; // packageimport
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57 import dwtx.jface.text.IMarkRegionTarget; // packageimport
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58 import dwtx.jface.text.TextViewerUndoManager; // packageimport
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59 import dwtx.jface.text.IRegion; // packageimport
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60 import dwtx.jface.text.IInformationControlExtension2; // packageimport
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61 import dwtx.jface.text.IDocumentExtension4; // packageimport
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62 import dwtx.jface.text.IDocumentExtension2; // packageimport
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63 import dwtx.jface.text.IDocumentPartitionerExtension2; // packageimport
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64 import dwtx.jface.text.Assert; // packageimport
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65 import dwtx.jface.text.DefaultInformationControl; // packageimport
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66 import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport
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67 import dwtx.jface.text.DocumentClone; // packageimport
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68 import dwtx.jface.text.DefaultUndoManager; // packageimport
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69 import dwtx.jface.text.IFindReplaceTarget; // packageimport
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70 import dwtx.jface.text.IAutoEditStrategy; // packageimport
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71 import dwtx.jface.text.ILineTrackerExtension; // packageimport
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72 import dwtx.jface.text.IUndoManagerExtension; // packageimport
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73 import dwtx.jface.text.TextSelection; // packageimport
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74 import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport
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75 import dwtx.jface.text.IAutoIndentStrategy; // packageimport
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76 import dwtx.jface.text.IPainter; // packageimport
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77 import dwtx.jface.text.IInformationControl; // packageimport
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78 import dwtx.jface.text.IInformationControlExtension3; // packageimport
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79 import dwtx.jface.text.ITextViewerExtension6; // packageimport
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80 import dwtx.jface.text.IInformationControlExtension4; // packageimport
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81 import dwtx.jface.text.DefaultLineTracker; // packageimport
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82 import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport
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83 import dwtx.jface.text.IRepairableDocumentExtension; // packageimport
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84 import dwtx.jface.text.ITextHover; // packageimport
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85 import dwtx.jface.text.FindReplaceDocumentAdapter; // packageimport
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86 import dwtx.jface.text.ILineTracker; // packageimport
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87 import dwtx.jface.text.Line; // packageimport
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88 import dwtx.jface.text.ITextViewerExtension; // packageimport
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89 import dwtx.jface.text.IDocumentAdapter; // packageimport
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90 import dwtx.jface.text.TextEvent; // packageimport
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91 import dwtx.jface.text.BadLocationException; // packageimport
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92 import dwtx.jface.text.AbstractDocument; // packageimport
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93 import dwtx.jface.text.AbstractLineTracker; // packageimport
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94 import dwtx.jface.text.TreeLineTracker; // packageimport
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95 import dwtx.jface.text.ITextPresentationListener; // packageimport
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96 import dwtx.jface.text.Region; // packageimport
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97 import dwtx.jface.text.ITextViewer; // packageimport
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98 import dwtx.jface.text.IDocumentInformationMapping; // packageimport
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99 import dwtx.jface.text.MarginPainter; // packageimport
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100 import dwtx.jface.text.IPaintPositionManager; // packageimport
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101 import dwtx.jface.text.TextPresentation; // packageimport
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102 import dwtx.jface.text.IFindReplaceTargetExtension; // packageimport
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103 import dwtx.jface.text.ISlaveDocumentManagerExtension; // packageimport
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104 import dwtx.jface.text.ISelectionValidator; // packageimport
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105 import dwtx.jface.text.IDocumentExtension; // packageimport
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106 import dwtx.jface.text.PropagatingFontFieldEditor; // packageimport
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107 import dwtx.jface.text.ConfigurableLineTracker; // packageimport
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108 import dwtx.jface.text.SlaveDocumentEvent; // packageimport
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109 import dwtx.jface.text.IDocumentListener; // packageimport
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110 import dwtx.jface.text.PaintManager; // packageimport
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111 import dwtx.jface.text.IFindReplaceTargetExtension3; // packageimport
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112 import dwtx.jface.text.ITextDoubleClickStrategy; // packageimport
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113 import dwtx.jface.text.IDocumentExtension3; // packageimport
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114 import dwtx.jface.text.Position; // packageimport
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115 import dwtx.jface.text.TextMessages; // packageimport
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116 import dwtx.jface.text.CopyOnWriteTextStore; // packageimport
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117 import dwtx.jface.text.WhitespaceCharacterPainter; // packageimport
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118 import dwtx.jface.text.IPositionUpdater; // packageimport
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119 import dwtx.jface.text.DefaultTextDoubleClickStrategy; // packageimport
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120 import dwtx.jface.text.ListLineTracker; // packageimport
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121 import dwtx.jface.text.ITextInputListener; // packageimport
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122 import dwtx.jface.text.BadPositionCategoryException; // packageimport
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123 import dwtx.jface.text.IWidgetTokenKeeperExtension; // packageimport
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124 import dwtx.jface.text.IInputChangedListener; // packageimport
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125 import dwtx.jface.text.ITextOperationTarget; // packageimport
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126 import dwtx.jface.text.IDocumentInformationMappingExtension2; // packageimport
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127 import dwtx.jface.text.ITextViewerExtension7; // packageimport
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128 import dwtx.jface.text.IInformationControlExtension5; // packageimport
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129 import dwtx.jface.text.IDocumentRewriteSessionListener; // packageimport
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130 import dwtx.jface.text.JFaceTextUtil; // packageimport
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131 import dwtx.jface.text.AbstractReusableInformationControlCreator; // packageimport
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132 import dwtx.jface.text.TabsToSpacesConverter; // packageimport
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133 import dwtx.jface.text.CursorLinePainter; // packageimport
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134 import dwtx.jface.text.ITextHoverExtension; // packageimport
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135 import dwtx.jface.text.IEventConsumer; // packageimport
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136 import dwtx.jface.text.IDocument; // packageimport
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137 import dwtx.jface.text.IWidgetTokenKeeper; // packageimport
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138 import dwtx.jface.text.DocumentCommand; // packageimport
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139 import dwtx.jface.text.TypedPosition; // packageimport
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140 import dwtx.jface.text.IEditingSupportRegistry; // packageimport
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141 import dwtx.jface.text.IDocumentPartitionerExtension; // packageimport
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142 import dwtx.jface.text.AbstractHoverInformationControlManager; // packageimport
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143 import dwtx.jface.text.IEditingSupport; // packageimport
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144 import dwtx.jface.text.IMarkSelection; // packageimport
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145 import dwtx.jface.text.ISlaveDocumentManager; // packageimport
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146 import dwtx.jface.text.DocumentEvent; // packageimport
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147 import dwtx.jface.text.DocumentPartitioningChangedEvent; // packageimport
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148 import dwtx.jface.text.ITextStore; // packageimport
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149 import dwtx.jface.text.JFaceTextMessages; // packageimport
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150 import dwtx.jface.text.DocumentRewriteSessionEvent; // packageimport
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151 import dwtx.jface.text.SequentialRewriteTextStore; // packageimport
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152 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport
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153 import dwtx.jface.text.ITextViewerExtension4; // packageimport
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154 import dwtx.jface.text.ITypedRegion; // packageimport
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155
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156
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129
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157 import dwt.dwthelper.utils;
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158
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159
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160 import dwt.DWT;
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161 import dwt.graphics.Color;
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162 import dwt.graphics.Font;
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163
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164
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165 /**
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166 * Description of textual attributes such as color and style. Text attributes
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167 * are considered value objects.
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168 * <p>
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169 * Clients usually instantiate object of the class.</p>
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170 */
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171 public class TextAttribute {
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172
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173 /**
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174 * Text attribute for strikethrough style.
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175 * (value <code>1 << 29</code>).
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176 * @since 3.1
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177 */
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178 public static final int STRIKETHROUGH= 1 << 29;
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179
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180 /**
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181 * Text attribute for underline style.
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182 * (value <code>1 << 30</code>)
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183 * @since 3.1
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184 */
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185 public static final int UNDERLINE= 1 << 30;
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186
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187
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188 /** Foreground color */
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189 private Color foreground;
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190
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191 /** Background color */
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192 private Color background;
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193
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194 /** The text style */
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195 private int style;
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196
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197 /**
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198 * The text font.
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199 * @since 3.3
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200 */
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201 private Font font;
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202
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203 /**
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204 * Cached hash code.
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205 * @since 3.3
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206 */
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207 private int fHashCode;
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208
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209 /**
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210 * Creates a text attribute with the given colors and style.
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211 *
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212 * @param foreground the foreground color, <code>null</code> if none
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213 * @param background the background color, <code>null</code> if none
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214 * @param style the style
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215 */
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216 public TextAttribute(Color foreground, Color background, int style) {
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217 this.foreground= foreground;
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218 this.background= background;
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219 this.style= style;
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220 }
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221
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222 /**
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223 * Creates a text attribute with the given colors and style.
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224 *
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225 * @param foreground the foreground color, <code>null</code> if none
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226 * @param background the background color, <code>null</code> if none
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227 * @param style the style
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228 * @param font the font, <code>null</code> if none
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229 * @since 3.3
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230 */
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231 public TextAttribute(Color foreground, Color background, int style, Font font) {
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232 this.foreground= foreground;
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233 this.background= background;
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234 this.style= style;
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235 this.font= font;
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236 }
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237
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238 /**
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239 * Creates a text attribute for the given foreground color, no background color and
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240 * with the DWT normal style.
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241 *
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242 * @param foreground the foreground color, <code>null</code> if none
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243 */
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244 public TextAttribute(Color foreground) {
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245 this(foreground, null, DWT.NORMAL);
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246 }
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247
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248 /*
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249 * @see Object#equals(Object)
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250 */
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251 public bool equals(Object object) {
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252
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253 if (object is this)
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254 return true;
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255
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256 if (!(object instanceof TextAttribute))
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257 return false;
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258 TextAttribute a= (TextAttribute)object;
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259
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260 return (a.style is style && equals(a.foreground, foreground) && equals(a.background, background) && equals(a.font, font));
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261 }
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262
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263 /**
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264 * Returns whether the two given objects are equal.
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265 *
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266 * @param o1 the first object, can be <code>null</code>
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267 * @param o2 the second object, can be <code>null</code>
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268 * @return <code>true</code> if the given objects are equals
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269 * @since 2.0
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270 */
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271 private bool equals(Object o1, Object o2) {
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272 if (o1 !is null)
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273 return o1.equals(o2);
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274 return (o2 is null);
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275 }
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276
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277 /*
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278 * @see Object#hashCode()
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279 */
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280 public int hashCode() {
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281 if (fHashCode is 0) {
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282 int multiplier= 37; // some prime
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283 fHashCode= 13; // some random value
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284 fHashCode= multiplier * fHashCode + (font is null ? 0 : font.hashCode());
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285 fHashCode= multiplier * fHashCode + (background is null ? 0 : background.hashCode());
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286 fHashCode= multiplier * fHashCode + (foreground is null ? 0 : foreground.hashCode());
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287 fHashCode= multiplier * fHashCode + style;
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288 }
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289 return fHashCode;
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290 }
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291
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292 /**
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293 * Returns the attribute's foreground color.
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294 *
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295 * @return the attribute's foreground color or <code>null</code> if not set
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296 */
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297 public Color getForeground() {
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298 return foreground;
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299 }
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300
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301 /**
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302 * Returns the attribute's background color.
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303 *
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304 * @return the attribute's background color or <code>null</code> if not set
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305 */
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306 public Color getBackground() {
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307 return background;
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308 }
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309
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310 /**
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311 * Returns the attribute's style.
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312 *
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313 * @return the attribute's style
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314 */
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315 public int getStyle() {
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316 return style;
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317 }
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318
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319 /**
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320 * Returns the attribute's font.
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321 *
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322 * @return the attribute's font or <code>null</code> if not set
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323 * @since 3.3
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324 */
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325 public Font getFont() {
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326 return font;
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327 }
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328 }
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