129
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1 /*******************************************************************************
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2 * Copyright (c) 2006, 2007 Wind River Systems, Inc. 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 * Anton Leherbauer (Wind River Systems) - initial API and implementation - https://bugs.eclipse.org/bugs/show_bug.cgi?id=22712
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10 * Anton Leherbauer (Wind River Systems) - [painting] Long lines take too long to display when "Show Whitespace Characters" is enabled - https://bugs.eclipse.org/bugs/show_bug.cgi?id=196116
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11 * Anton Leherbauer (Wind River Systems) - [painting] Whitespace characters not drawn when scrolling to right slowly - https://bugs.eclipse.org/bugs/show_bug.cgi?id=206633
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12 * Port to the D programming language:
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13 * Frank Benoit <benoit@tionex.de>
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14 *******************************************************************************/
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15 module dwtx.jface.text.WhitespaceCharacterPainter;
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16
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131
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17 import dwtx.jface.text.IDocumentPartitioningListener; // packageimport
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18 import dwtx.jface.text.DefaultTextHover; // packageimport
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19 import dwtx.jface.text.AbstractInformationControl; // packageimport
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20 import dwtx.jface.text.TextUtilities; // packageimport
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21 import dwtx.jface.text.IInformationControlCreatorExtension; // packageimport
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22 import dwtx.jface.text.AbstractInformationControlManager; // packageimport
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23 import dwtx.jface.text.ITextViewerExtension2; // packageimport
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24 import dwtx.jface.text.IDocumentPartitioner; // packageimport
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25 import dwtx.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport
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26 import dwtx.jface.text.ITextSelection; // packageimport
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27 import dwtx.jface.text.Document; // packageimport
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28 import dwtx.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport
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29 import dwtx.jface.text.ITextListener; // packageimport
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30 import dwtx.jface.text.BadPartitioningException; // packageimport
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31 import dwtx.jface.text.ITextViewerExtension5; // packageimport
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32 import dwtx.jface.text.IDocumentPartitionerExtension3; // packageimport
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33 import dwtx.jface.text.IUndoManager; // packageimport
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34 import dwtx.jface.text.ITextHoverExtension2; // packageimport
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35 import dwtx.jface.text.IRepairableDocument; // packageimport
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36 import dwtx.jface.text.IRewriteTarget; // packageimport
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37 import dwtx.jface.text.DefaultPositionUpdater; // packageimport
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38 import dwtx.jface.text.RewriteSessionEditProcessor; // packageimport
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39 import dwtx.jface.text.TextViewerHoverManager; // packageimport
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40 import dwtx.jface.text.DocumentRewriteSession; // packageimport
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41 import dwtx.jface.text.TextViewer; // packageimport
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42 import dwtx.jface.text.ITextViewerExtension8; // packageimport
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43 import dwtx.jface.text.RegExMessages; // packageimport
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44 import dwtx.jface.text.IDelayedInputChangeProvider; // packageimport
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45 import dwtx.jface.text.ITextOperationTargetExtension; // packageimport
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46 import dwtx.jface.text.IWidgetTokenOwner; // packageimport
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47 import dwtx.jface.text.IViewportListener; // packageimport
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48 import dwtx.jface.text.GapTextStore; // packageimport
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49 import dwtx.jface.text.MarkSelection; // packageimport
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50 import dwtx.jface.text.IDocumentPartitioningListenerExtension; // packageimport
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51 import dwtx.jface.text.IDocumentAdapterExtension; // packageimport
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52 import dwtx.jface.text.IInformationControlExtension; // packageimport
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53 import dwtx.jface.text.IDocumentPartitioningListenerExtension2; // packageimport
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54 import dwtx.jface.text.DefaultDocumentAdapter; // packageimport
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55 import dwtx.jface.text.ITextViewerExtension3; // packageimport
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56 import dwtx.jface.text.IInformationControlCreator; // packageimport
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57 import dwtx.jface.text.TypedRegion; // packageimport
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58 import dwtx.jface.text.ISynchronizable; // packageimport
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59 import dwtx.jface.text.IMarkRegionTarget; // packageimport
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60 import dwtx.jface.text.TextViewerUndoManager; // packageimport
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61 import dwtx.jface.text.IRegion; // packageimport
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62 import dwtx.jface.text.IInformationControlExtension2; // packageimport
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63 import dwtx.jface.text.IDocumentExtension4; // packageimport
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64 import dwtx.jface.text.IDocumentExtension2; // packageimport
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65 import dwtx.jface.text.IDocumentPartitionerExtension2; // packageimport
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66 import dwtx.jface.text.Assert; // packageimport
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67 import dwtx.jface.text.DefaultInformationControl; // packageimport
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68 import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport
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69 import dwtx.jface.text.DocumentClone; // packageimport
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70 import dwtx.jface.text.DefaultUndoManager; // packageimport
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71 import dwtx.jface.text.IFindReplaceTarget; // packageimport
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72 import dwtx.jface.text.IAutoEditStrategy; // packageimport
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73 import dwtx.jface.text.ILineTrackerExtension; // packageimport
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74 import dwtx.jface.text.IUndoManagerExtension; // packageimport
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75 import dwtx.jface.text.TextSelection; // packageimport
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76 import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport
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77 import dwtx.jface.text.IAutoIndentStrategy; // packageimport
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78 import dwtx.jface.text.IPainter; // packageimport
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79 import dwtx.jface.text.IInformationControl; // packageimport
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80 import dwtx.jface.text.IInformationControlExtension3; // packageimport
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81 import dwtx.jface.text.ITextViewerExtension6; // packageimport
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82 import dwtx.jface.text.IInformationControlExtension4; // packageimport
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83 import dwtx.jface.text.DefaultLineTracker; // packageimport
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84 import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport
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85 import dwtx.jface.text.IRepairableDocumentExtension; // packageimport
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86 import dwtx.jface.text.ITextHover; // packageimport
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87 import dwtx.jface.text.FindReplaceDocumentAdapter; // packageimport
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88 import dwtx.jface.text.ILineTracker; // packageimport
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89 import dwtx.jface.text.Line; // packageimport
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90 import dwtx.jface.text.ITextViewerExtension; // packageimport
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91 import dwtx.jface.text.IDocumentAdapter; // packageimport
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92 import dwtx.jface.text.TextEvent; // packageimport
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93 import dwtx.jface.text.BadLocationException; // packageimport
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94 import dwtx.jface.text.AbstractDocument; // packageimport
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95 import dwtx.jface.text.AbstractLineTracker; // packageimport
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96 import dwtx.jface.text.TreeLineTracker; // packageimport
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97 import dwtx.jface.text.ITextPresentationListener; // packageimport
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98 import dwtx.jface.text.Region; // packageimport
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99 import dwtx.jface.text.ITextViewer; // packageimport
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100 import dwtx.jface.text.IDocumentInformationMapping; // packageimport
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101 import dwtx.jface.text.MarginPainter; // packageimport
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102 import dwtx.jface.text.IPaintPositionManager; // packageimport
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103 import dwtx.jface.text.TextPresentation; // packageimport
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104 import dwtx.jface.text.IFindReplaceTargetExtension; // packageimport
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105 import dwtx.jface.text.ISlaveDocumentManagerExtension; // packageimport
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106 import dwtx.jface.text.ISelectionValidator; // packageimport
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107 import dwtx.jface.text.IDocumentExtension; // packageimport
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108 import dwtx.jface.text.PropagatingFontFieldEditor; // packageimport
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109 import dwtx.jface.text.ConfigurableLineTracker; // packageimport
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110 import dwtx.jface.text.SlaveDocumentEvent; // packageimport
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111 import dwtx.jface.text.IDocumentListener; // packageimport
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112 import dwtx.jface.text.PaintManager; // packageimport
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113 import dwtx.jface.text.IFindReplaceTargetExtension3; // packageimport
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114 import dwtx.jface.text.ITextDoubleClickStrategy; // packageimport
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115 import dwtx.jface.text.IDocumentExtension3; // packageimport
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116 import dwtx.jface.text.Position; // packageimport
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117 import dwtx.jface.text.TextMessages; // packageimport
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118 import dwtx.jface.text.CopyOnWriteTextStore; // packageimport
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119 import dwtx.jface.text.IPositionUpdater; // packageimport
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120 import dwtx.jface.text.DefaultTextDoubleClickStrategy; // packageimport
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121 import dwtx.jface.text.ListLineTracker; // packageimport
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122 import dwtx.jface.text.ITextInputListener; // packageimport
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123 import dwtx.jface.text.BadPositionCategoryException; // packageimport
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124 import dwtx.jface.text.IWidgetTokenKeeperExtension; // packageimport
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125 import dwtx.jface.text.IInputChangedListener; // packageimport
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126 import dwtx.jface.text.ITextOperationTarget; // packageimport
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127 import dwtx.jface.text.IDocumentInformationMappingExtension2; // packageimport
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128 import dwtx.jface.text.ITextViewerExtension7; // packageimport
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129 import dwtx.jface.text.IInformationControlExtension5; // packageimport
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130 import dwtx.jface.text.IDocumentRewriteSessionListener; // packageimport
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131 import dwtx.jface.text.JFaceTextUtil; // packageimport
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132 import dwtx.jface.text.AbstractReusableInformationControlCreator; // packageimport
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133 import dwtx.jface.text.TabsToSpacesConverter; // packageimport
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134 import dwtx.jface.text.CursorLinePainter; // packageimport
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135 import dwtx.jface.text.ITextHoverExtension; // packageimport
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136 import dwtx.jface.text.IEventConsumer; // packageimport
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137 import dwtx.jface.text.IDocument; // packageimport
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138 import dwtx.jface.text.IWidgetTokenKeeper; // packageimport
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139 import dwtx.jface.text.DocumentCommand; // packageimport
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140 import dwtx.jface.text.TypedPosition; // packageimport
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141 import dwtx.jface.text.IEditingSupportRegistry; // packageimport
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142 import dwtx.jface.text.IDocumentPartitionerExtension; // packageimport
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143 import dwtx.jface.text.AbstractHoverInformationControlManager; // packageimport
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144 import dwtx.jface.text.IEditingSupport; // packageimport
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145 import dwtx.jface.text.IMarkSelection; // packageimport
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146 import dwtx.jface.text.ISlaveDocumentManager; // packageimport
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147 import dwtx.jface.text.DocumentEvent; // packageimport
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148 import dwtx.jface.text.DocumentPartitioningChangedEvent; // packageimport
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149 import dwtx.jface.text.ITextStore; // packageimport
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150 import dwtx.jface.text.JFaceTextMessages; // packageimport
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151 import dwtx.jface.text.DocumentRewriteSessionEvent; // packageimport
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152 import dwtx.jface.text.SequentialRewriteTextStore; // packageimport
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153 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport
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154 import dwtx.jface.text.TextAttribute; // packageimport
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155 import dwtx.jface.text.ITextViewerExtension4; // packageimport
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156 import dwtx.jface.text.ITypedRegion; // packageimport
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157
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158
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129
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159 import dwt.dwthelper.utils;
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160
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161 import dwt.custom.StyleRange;
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162 import dwt.custom.StyledText;
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163 import dwt.custom.StyledTextContent;
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164 import dwt.events.PaintEvent;
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165 import dwt.events.PaintListener;
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166 import dwt.graphics.Color;
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167 import dwt.graphics.FontMetrics;
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168 import dwt.graphics.GC;
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169 import dwt.graphics.Point;
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170
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171
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172 /**
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173 * A painter for drawing visible characters for (invisible) whitespace
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174 * characters.
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175 *
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176 * @since 3.3
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177 */
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178 public class WhitespaceCharacterPainter : IPainter, PaintListener {
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179
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180 private static final char SPACE_SIGN= '\u00b7';
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181 private static final char IDEOGRAPHIC_SPACE_SIGN= '\u00b0';
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182 private static final char TAB_SIGN= '\u00bb';
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183 private static final char CARRIAGE_RETURN_SIGN= '\u00a4';
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184 private static final char LINE_FEED_SIGN= '\u00b6';
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185
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186 /** Indicates whether this painter is active. */
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187 private bool fIsActive= false;
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188 /** The source viewer this painter is attached to. */
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189 private ITextViewer fTextViewer;
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190 /** The viewer's widget. */
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191 private StyledText fTextWidget;
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192 /** Tells whether the advanced graphics sub system is available. */
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193 private bool fIsAdvancedGraphicsPresent;
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194
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195 /**
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196 * Creates a new painter for the given text viewer.
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197 *
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198 * @param textViewer the text viewer the painter should be attached to
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199 */
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200 public WhitespaceCharacterPainter(ITextViewer textViewer) {
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201 super();
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202 fTextViewer= textViewer;
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203 fTextWidget= textViewer.getTextWidget();
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204 GC gc= new GC(fTextWidget);
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205 gc.setAdvanced(true);
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206 fIsAdvancedGraphicsPresent= gc.getAdvanced();
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207 gc.dispose();
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208 }
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209
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210 /*
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211 * @see dwtx.jface.text.IPainter#dispose()
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212 */
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213 public void dispose() {
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214 fTextViewer= null;
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215 fTextWidget= null;
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216 }
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217
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218 /*
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219 * @see dwtx.jface.text.IPainter#paint(int)
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220 */
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221 public void paint(int reason) {
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222 IDocument document= fTextViewer.getDocument();
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223 if (document is null) {
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224 deactivate(false);
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225 return;
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226 }
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227 if (!fIsActive) {
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228 fIsActive= true;
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229 fTextWidget.addPaintListener(this);
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230 redrawAll();
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231 } else if (reason is CONFIGURATION || reason is INTERNAL) {
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232 redrawAll();
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233 } else if (reason is TEXT_CHANGE) {
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234 // redraw current line only
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235 try {
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236 IRegion lineRegion =
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237 document.getLineInformationOfOffset(getDocumentOffset(fTextWidget.getCaretOffset()));
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238 int widgetOffset= getWidgetOffset(lineRegion.getOffset());
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239 int charCount= fTextWidget.getCharCount();
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240 int redrawLength= Math.min(lineRegion.getLength(), charCount - widgetOffset);
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241 if (widgetOffset >= 0 && redrawLength > 0) {
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242 fTextWidget.redrawRange(widgetOffset, redrawLength, true);
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243 }
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244 } catch (BadLocationException e) {
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245 // ignore
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246 }
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247 }
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248 }
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249
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250 /*
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251 * @see dwtx.jface.text.IPainter#deactivate(bool)
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252 */
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253 public void deactivate(bool redraw) {
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254 if (fIsActive) {
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255 fIsActive= false;
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256 fTextWidget.removePaintListener(this);
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257 if (redraw) {
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258 redrawAll();
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259 }
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260 }
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261 }
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262
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263 /*
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264 * @see dwtx.jface.text.IPainter#setPositionManager(dwtx.jface.text.IPaintPositionManager)
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265 */
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266 public void setPositionManager(IPaintPositionManager manager) {
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267 // no need for a position manager
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268 }
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269
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270 /*
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271 * @see dwt.events.PaintListener#paintControl(dwt.events.PaintEvent)
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272 */
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273 public void paintControl(PaintEvent event) {
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274 if (fTextWidget !is null) {
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275 handleDrawRequest(event.gc, event.x, event.y, event.width, event.height);
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276 }
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277 }
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278
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279 /**
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280 * Draw characters in view range.
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281 *
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282 * @param gc
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283 * @param x
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284 * @param y
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285 * @param w
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286 * @param h
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287 */
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288 private void handleDrawRequest(GC gc, int x, int y, int w, int h) {
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289 int startLine= fTextWidget.getLineIndex(y);
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290 int endLine= fTextWidget.getLineIndex(y + h - 1);
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291 if (startLine <= endLine && startLine < fTextWidget.getLineCount()) {
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292 if (fIsAdvancedGraphicsPresent) {
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293 int alpha= gc.getAlpha();
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294 gc.setAlpha(100);
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295 drawLineRange(gc, startLine, endLine, x, w);
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296 gc.setAlpha(alpha);
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297 } else
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298 drawLineRange(gc, startLine, endLine, x, w);
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299 }
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300 }
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301
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302 /**
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303 * Draw the given line range.
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304 *
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305 * @param gc
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306 * @param startLine first line number
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307 * @param endLine last line number (inclusive)
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308 * @param x the X-coordinate of the drawing range
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309 * @param w the width of the drawing range
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310 */
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311 private void drawLineRange(GC gc, int startLine, int endLine, int x, int w) {
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312 final int viewPortWidth= fTextWidget.getClientArea().width;
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313 for (int line= startLine; line <= endLine; line++) {
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314 int lineOffset= fTextWidget.getOffsetAtLine(line);
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315 // line end offset including line delimiter
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316 int lineEndOffset;
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317 if (line < fTextWidget.getLineCount() - 1) {
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318 lineEndOffset= fTextWidget.getOffsetAtLine(line + 1);
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319 } else {
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320 lineEndOffset= fTextWidget.getCharCount();
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321 }
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322 // line length excluding line delimiter
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323 int lineLength= lineEndOffset - lineOffset;
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324 while (lineLength > 0) {
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325 char c= fTextWidget.getTextRange(lineOffset + lineLength - 1, 1).charAt(0);
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326 if (c !is '\r' && c !is '\n') {
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327 break;
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328 }
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329 --lineLength;
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330 }
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331 // compute coordinates of last character on line
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332 Point endOfLine= fTextWidget.getLocationAtOffset(lineOffset + lineLength);
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333 if (x - endOfLine.x > viewPortWidth) {
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334 // line is not visible
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335 continue;
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336 }
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337 // Y-coordinate of line
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338 int y= fTextWidget.getLinePixel(line);
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339 // compute first visible char offset
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340 int startOffset;
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341 try {
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342 startOffset= fTextWidget.getOffsetAtLocation(new Point(x, y)) - 1;
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343 if (startOffset - 2 <= lineOffset) {
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344 startOffset= lineOffset;
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345 }
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346 } catch (IllegalArgumentException iae) {
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347 startOffset= lineOffset;
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348 }
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349 // compute last visible char offset
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350 int endOffset;
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351 if (x + w >= endOfLine.x) {
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352 // line end is visible
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353 endOffset= lineEndOffset;
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354 } else {
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355 try {
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356 endOffset= fTextWidget.getOffsetAtLocation(new Point(x + w - 1, y)) + 1;
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357 if (endOffset + 2 >= lineEndOffset) {
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358 endOffset= lineEndOffset;
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359 }
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360 } catch (IllegalArgumentException iae) {
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361 endOffset= lineEndOffset;
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362 }
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363 }
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364 // draw character range
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365 if (endOffset > startOffset) {
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366 drawCharRange(gc, startOffset, endOffset);
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367 }
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368 }
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369 }
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370
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371 /**
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372 * Draw characters of content range.
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373 *
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374 * @param gc the GC
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375 * @param startOffset inclusive start index
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376 * @param endOffset exclusive end index
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377 */
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378 private void drawCharRange(GC gc, int startOffset, int endOffset) {
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379 StyledTextContent content= fTextWidget.getContent();
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380 int length= endOffset - startOffset;
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381 String text= content.getTextRange(startOffset, length);
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382 StyleRange styleRange= null;
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383 Color fg= null;
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384 Point selection= fTextWidget.getSelection();
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385 StringBuffer visibleChar= new StringBuffer(10);
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386 for (int textOffset= 0; textOffset <= length; ++textOffset) {
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387 int delta= 0;
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388 bool eol= false;
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389 if (textOffset < length) {
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390 delta= 1;
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391 char c= text.charAt(textOffset);
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392 switch (c) {
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393 case ' ' :
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394 visibleChar.append(SPACE_SIGN);
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395 // 'continue' would improve performance but may produce drawing errors
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396 // for long runs of space if width of space and dot differ
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397 break;
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398 case '\u3000' : // ideographic whitespace
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399 visibleChar.append(IDEOGRAPHIC_SPACE_SIGN);
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400 // 'continue' would improve performance but may produce drawing errors
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401 // for long runs of space if width of space and dot differ
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402 break;
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403 case '\t' :
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404 visibleChar.append(TAB_SIGN);
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405 break;
|
|
406 case '\r' :
|
|
407 visibleChar.append(CARRIAGE_RETURN_SIGN);
|
|
408 if (textOffset >= length - 1 || text.charAt(textOffset + 1) !is '\n') {
|
|
409 eol= true;
|
|
410 break;
|
|
411 }
|
|
412 continue;
|
|
413 case '\n' :
|
|
414 visibleChar.append(LINE_FEED_SIGN);
|
|
415 eol= true;
|
|
416 break;
|
|
417 default :
|
|
418 delta= 0;
|
|
419 break;
|
|
420 }
|
|
421 }
|
|
422 if (visibleChar.length() > 0) {
|
|
423 int widgetOffset= startOffset + textOffset - visibleChar.length() + delta;
|
|
424 if (!eol || !isFoldedLine(content.getLineAtOffset(widgetOffset))) {
|
|
425 if (widgetOffset >= selection.x && widgetOffset < selection.y) {
|
|
426 fg= fTextWidget.getSelectionForeground();
|
|
427 } else if (styleRange is null || styleRange.start + styleRange.length <= widgetOffset) {
|
|
428 styleRange= fTextWidget.getStyleRangeAtOffset(widgetOffset);
|
|
429 if (styleRange is null || styleRange.foreground is null) {
|
|
430 fg= fTextWidget.getForeground();
|
|
431 } else {
|
|
432 fg= styleRange.foreground;
|
|
433 }
|
|
434 }
|
|
435 draw(gc, widgetOffset, visibleChar.toString(), fg);
|
|
436 }
|
|
437 visibleChar.delete(0, visibleChar.length());
|
|
438 }
|
|
439 }
|
|
440 }
|
|
441
|
|
442 /**
|
|
443 * Check if the given widget line is a folded line.
|
|
444 *
|
|
445 * @param widgetLine the widget line number
|
|
446 * @return <code>true</code> if the line is folded
|
|
447 */
|
|
448 private bool isFoldedLine(int widgetLine) {
|
|
449 if (fTextViewer instanceof ITextViewerExtension5) {
|
|
450 ITextViewerExtension5 extension= (ITextViewerExtension5)fTextViewer;
|
|
451 int modelLine= extension.widgetLine2ModelLine(widgetLine);
|
|
452 int widgetLine2= extension.modelLine2WidgetLine(modelLine + 1);
|
|
453 return widgetLine2 is -1;
|
|
454 }
|
|
455 return false;
|
|
456 }
|
|
457
|
|
458 /**
|
|
459 * Redraw all of the text widgets visible content.
|
|
460 */
|
|
461 private void redrawAll() {
|
|
462 fTextWidget.redraw();
|
|
463 }
|
|
464
|
|
465 /**
|
|
466 * Draw string at widget offset.
|
|
467 *
|
|
468 * @param gc
|
|
469 * @param offset the widget offset
|
|
470 * @param s the string to be drawn
|
|
471 * @param fg the foreground color
|
|
472 */
|
|
473 private void draw(GC gc, int offset, String s, Color fg) {
|
|
474 // Compute baseline delta (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=165640)
|
|
475 int baseline= fTextWidget.getBaseline(offset);
|
|
476 FontMetrics fontMetrics= gc.getFontMetrics();
|
|
477 int fontBaseline= fontMetrics.getAscent() + fontMetrics.getLeading();
|
|
478 int baslineDelta= baseline - fontBaseline;
|
|
479
|
|
480 Point pos= fTextWidget.getLocationAtOffset(offset);
|
|
481 gc.setForeground(fg);
|
|
482 gc.drawString(s, pos.x, pos.y + baslineDelta, true);
|
|
483 }
|
|
484
|
|
485 /**
|
|
486 * Convert a document offset to the corresponding widget offset.
|
|
487 *
|
|
488 * @param documentOffset
|
|
489 * @return widget offset
|
|
490 */
|
|
491 private int getWidgetOffset(int documentOffset) {
|
|
492 if (fTextViewer instanceof ITextViewerExtension5) {
|
|
493 ITextViewerExtension5 extension= (ITextViewerExtension5)fTextViewer;
|
|
494 return extension.modelOffset2WidgetOffset(documentOffset);
|
|
495 }
|
|
496 IRegion visible= fTextViewer.getVisibleRegion();
|
|
497 int widgetOffset= documentOffset - visible.getOffset();
|
|
498 if (widgetOffset > visible.getLength()) {
|
|
499 return -1;
|
|
500 }
|
|
501 return widgetOffset;
|
|
502 }
|
|
503
|
|
504 /**
|
|
505 * Convert a widget offset to the corresponding document offset.
|
|
506 *
|
|
507 * @param widgetOffset
|
|
508 * @return document offset
|
|
509 */
|
|
510 private int getDocumentOffset(int widgetOffset) {
|
|
511 if (fTextViewer instanceof ITextViewerExtension5) {
|
|
512 ITextViewerExtension5 extension= (ITextViewerExtension5)fTextViewer;
|
|
513 return extension.widgetOffset2ModelOffset(widgetOffset);
|
|
514 }
|
|
515 IRegion visible= fTextViewer.getVisibleRegion();
|
|
516 if (widgetOffset > visible.getLength()) {
|
|
517 return -1;
|
|
518 }
|
|
519 return widgetOffset + visible.getOffset();
|
|
520 }
|
|
521
|
|
522 }
|