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annotate org.eclipse.jface.text/src/org/eclipse/jface/text/WhitespaceCharacterPainter.d @ 16:dbfb303e8fb0

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first complete successful compile (win-only)
author Frank Benoit <benoit@tionex.de>
date Wed, 18 Mar 2009 08:56:47 +0100
parents bc29606a740c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
12
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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 org.eclipse.jface.text.WhitespaceCharacterPainter;
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16
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17 import org.eclipse.jface.text.IDocumentPartitioningListener; // packageimport
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18 import org.eclipse.jface.text.DefaultTextHover; // packageimport
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19 import org.eclipse.jface.text.AbstractInformationControl; // packageimport
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20 import org.eclipse.jface.text.TextUtilities; // packageimport
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21 import org.eclipse.jface.text.IInformationControlCreatorExtension; // packageimport
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22 import org.eclipse.jface.text.AbstractInformationControlManager; // packageimport
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23 import org.eclipse.jface.text.ITextViewerExtension2; // packageimport
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24 import org.eclipse.jface.text.IDocumentPartitioner; // packageimport
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25 import org.eclipse.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport
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26 import org.eclipse.jface.text.ITextSelection; // packageimport
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27 import org.eclipse.jface.text.Document; // packageimport
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28 import org.eclipse.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport
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29 import org.eclipse.jface.text.ITextListener; // packageimport
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30 import org.eclipse.jface.text.BadPartitioningException; // packageimport
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31 import org.eclipse.jface.text.ITextViewerExtension5; // packageimport
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32 import org.eclipse.jface.text.IDocumentPartitionerExtension3; // packageimport
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33 import org.eclipse.jface.text.IUndoManager; // packageimport
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34 import org.eclipse.jface.text.ITextHoverExtension2; // packageimport
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35 import org.eclipse.jface.text.IRepairableDocument; // packageimport
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36 import org.eclipse.jface.text.IRewriteTarget; // packageimport
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37 import org.eclipse.jface.text.DefaultPositionUpdater; // packageimport
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38 import org.eclipse.jface.text.RewriteSessionEditProcessor; // packageimport
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39 import org.eclipse.jface.text.TextViewerHoverManager; // packageimport
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40 import org.eclipse.jface.text.DocumentRewriteSession; // packageimport
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41 import org.eclipse.jface.text.TextViewer; // packageimport
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42 import org.eclipse.jface.text.ITextViewerExtension8; // packageimport
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43 import org.eclipse.jface.text.RegExMessages; // packageimport
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44 import org.eclipse.jface.text.IDelayedInputChangeProvider; // packageimport
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45 import org.eclipse.jface.text.ITextOperationTargetExtension; // packageimport
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46 import org.eclipse.jface.text.IWidgetTokenOwner; // packageimport
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47 import org.eclipse.jface.text.IViewportListener; // packageimport
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48 import org.eclipse.jface.text.GapTextStore; // packageimport
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49 import org.eclipse.jface.text.MarkSelection; // packageimport
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50 import org.eclipse.jface.text.IDocumentPartitioningListenerExtension; // packageimport
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51 import org.eclipse.jface.text.IDocumentAdapterExtension; // packageimport
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52 import org.eclipse.jface.text.IInformationControlExtension; // packageimport
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53 import org.eclipse.jface.text.IDocumentPartitioningListenerExtension2; // packageimport
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54 import org.eclipse.jface.text.DefaultDocumentAdapter; // packageimport
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55 import org.eclipse.jface.text.ITextViewerExtension3; // packageimport
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56 import org.eclipse.jface.text.IInformationControlCreator; // packageimport
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57 import org.eclipse.jface.text.TypedRegion; // packageimport
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58 import org.eclipse.jface.text.ISynchronizable; // packageimport
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59 import org.eclipse.jface.text.IMarkRegionTarget; // packageimport
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60 import org.eclipse.jface.text.TextViewerUndoManager; // packageimport
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61 import org.eclipse.jface.text.IRegion; // packageimport
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62 import org.eclipse.jface.text.IInformationControlExtension2; // packageimport
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63 import org.eclipse.jface.text.IDocumentExtension4; // packageimport
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64 import org.eclipse.jface.text.IDocumentExtension2; // packageimport
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65 import org.eclipse.jface.text.IDocumentPartitionerExtension2; // packageimport
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66 import org.eclipse.jface.text.Assert; // packageimport
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67 import org.eclipse.jface.text.DefaultInformationControl; // packageimport
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68 import org.eclipse.jface.text.IWidgetTokenOwnerExtension; // packageimport
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69 import org.eclipse.jface.text.DocumentClone; // packageimport
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70 import org.eclipse.jface.text.DefaultUndoManager; // packageimport
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71 import org.eclipse.jface.text.IFindReplaceTarget; // packageimport
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72 import org.eclipse.jface.text.IAutoEditStrategy; // packageimport
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73 import org.eclipse.jface.text.ILineTrackerExtension; // packageimport
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74 import org.eclipse.jface.text.IUndoManagerExtension; // packageimport
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75 import org.eclipse.jface.text.TextSelection; // packageimport
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76 import org.eclipse.jface.text.DefaultAutoIndentStrategy; // packageimport
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77 import org.eclipse.jface.text.IAutoIndentStrategy; // packageimport
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78 import org.eclipse.jface.text.IPainter; // packageimport
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79 import org.eclipse.jface.text.IInformationControl; // packageimport
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80 import org.eclipse.jface.text.IInformationControlExtension3; // packageimport
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81 import org.eclipse.jface.text.ITextViewerExtension6; // packageimport
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82 import org.eclipse.jface.text.IInformationControlExtension4; // packageimport
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83 import org.eclipse.jface.text.DefaultLineTracker; // packageimport
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84 import org.eclipse.jface.text.IDocumentInformationMappingExtension; // packageimport
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85 import org.eclipse.jface.text.IRepairableDocumentExtension; // packageimport
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86 import org.eclipse.jface.text.ITextHover; // packageimport
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87 import org.eclipse.jface.text.FindReplaceDocumentAdapter; // packageimport
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88 import org.eclipse.jface.text.ILineTracker; // packageimport
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89 import org.eclipse.jface.text.Line; // packageimport
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90 import org.eclipse.jface.text.ITextViewerExtension; // packageimport
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91 import org.eclipse.jface.text.IDocumentAdapter; // packageimport
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92 import org.eclipse.jface.text.TextEvent; // packageimport
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93 import org.eclipse.jface.text.BadLocationException; // packageimport
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94 import org.eclipse.jface.text.AbstractDocument; // packageimport
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95 import org.eclipse.jface.text.AbstractLineTracker; // packageimport
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96 import org.eclipse.jface.text.TreeLineTracker; // packageimport
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97 import org.eclipse.jface.text.ITextPresentationListener; // packageimport
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98 import org.eclipse.jface.text.Region; // packageimport
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99 import org.eclipse.jface.text.ITextViewer; // packageimport
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100 import org.eclipse.jface.text.IDocumentInformationMapping; // packageimport
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101 import org.eclipse.jface.text.MarginPainter; // packageimport
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102 import org.eclipse.jface.text.IPaintPositionManager; // packageimport
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103 import org.eclipse.jface.text.TextPresentation; // packageimport
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104 import org.eclipse.jface.text.IFindReplaceTargetExtension; // packageimport
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105 import org.eclipse.jface.text.ISlaveDocumentManagerExtension; // packageimport
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106 import org.eclipse.jface.text.ISelectionValidator; // packageimport
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107 import org.eclipse.jface.text.IDocumentExtension; // packageimport
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108 import org.eclipse.jface.text.PropagatingFontFieldEditor; // packageimport
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109 import org.eclipse.jface.text.ConfigurableLineTracker; // packageimport
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110 import org.eclipse.jface.text.SlaveDocumentEvent; // packageimport
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111 import org.eclipse.jface.text.IDocumentListener; // packageimport
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112 import org.eclipse.jface.text.PaintManager; // packageimport
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113 import org.eclipse.jface.text.IFindReplaceTargetExtension3; // packageimport
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114 import org.eclipse.jface.text.ITextDoubleClickStrategy; // packageimport
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115 import org.eclipse.jface.text.IDocumentExtension3; // packageimport
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116 import org.eclipse.jface.text.Position; // packageimport
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117 import org.eclipse.jface.text.TextMessages; // packageimport
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118 import org.eclipse.jface.text.CopyOnWriteTextStore; // packageimport
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119 import org.eclipse.jface.text.IPositionUpdater; // packageimport
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120 import org.eclipse.jface.text.DefaultTextDoubleClickStrategy; // packageimport
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121 import org.eclipse.jface.text.ListLineTracker; // packageimport
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122 import org.eclipse.jface.text.ITextInputListener; // packageimport
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123 import org.eclipse.jface.text.BadPositionCategoryException; // packageimport
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124 import org.eclipse.jface.text.IWidgetTokenKeeperExtension; // packageimport
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125 import org.eclipse.jface.text.IInputChangedListener; // packageimport
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126 import org.eclipse.jface.text.ITextOperationTarget; // packageimport
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127 import org.eclipse.jface.text.IDocumentInformationMappingExtension2; // packageimport
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128 import org.eclipse.jface.text.ITextViewerExtension7; // packageimport
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129 import org.eclipse.jface.text.IInformationControlExtension5; // packageimport
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130 import org.eclipse.jface.text.IDocumentRewriteSessionListener; // packageimport
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131 import org.eclipse.jface.text.JFaceTextUtil; // packageimport
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132 import org.eclipse.jface.text.AbstractReusableInformationControlCreator; // packageimport
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133 import org.eclipse.jface.text.TabsToSpacesConverter; // packageimport
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134 import org.eclipse.jface.text.CursorLinePainter; // packageimport
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135 import org.eclipse.jface.text.ITextHoverExtension; // packageimport
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136 import org.eclipse.jface.text.IEventConsumer; // packageimport
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137 import org.eclipse.jface.text.IDocument; // packageimport
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138 import org.eclipse.jface.text.IWidgetTokenKeeper; // packageimport
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139 import org.eclipse.jface.text.DocumentCommand; // packageimport
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140 import org.eclipse.jface.text.TypedPosition; // packageimport
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141 import org.eclipse.jface.text.IEditingSupportRegistry; // packageimport
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142 import org.eclipse.jface.text.IDocumentPartitionerExtension; // packageimport
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143 import org.eclipse.jface.text.AbstractHoverInformationControlManager; // packageimport
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144 import org.eclipse.jface.text.IEditingSupport; // packageimport
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145 import org.eclipse.jface.text.IMarkSelection; // packageimport
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146 import org.eclipse.jface.text.ISlaveDocumentManager; // packageimport
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147 import org.eclipse.jface.text.DocumentEvent; // packageimport
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148 import org.eclipse.jface.text.DocumentPartitioningChangedEvent; // packageimport
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149 import org.eclipse.jface.text.ITextStore; // packageimport
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150 import org.eclipse.jface.text.JFaceTextMessages; // packageimport
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151 import org.eclipse.jface.text.DocumentRewriteSessionEvent; // packageimport
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152 import org.eclipse.jface.text.SequentialRewriteTextStore; // packageimport
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153 import org.eclipse.jface.text.DocumentRewriteSessionType; // packageimport
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154 import org.eclipse.jface.text.TextAttribute; // packageimport
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155 import org.eclipse.jface.text.ITextViewerExtension4; // packageimport
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156 import org.eclipse.jface.text.ITypedRegion; // packageimport
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157
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158
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159 import java.lang.all;
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160 import java.util.Set;
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161
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162 import org.eclipse.swt.custom.StyleRange;
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163 import org.eclipse.swt.custom.StyledText;
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164 import org.eclipse.swt.custom.StyledTextContent;
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165 import org.eclipse.swt.events.PaintEvent;
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166 import org.eclipse.swt.events.PaintListener;
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167 import org.eclipse.swt.graphics.Color;
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168 import org.eclipse.swt.graphics.FontMetrics;
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169 import org.eclipse.swt.graphics.GC;
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170 import org.eclipse.swt.graphics.Point;
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171
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172
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173 /**
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174 * A painter for drawing visible characters for (invisible) whitespace
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175 * characters.
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176 *
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177 * @since 3.3
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178 */
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179 public class WhitespaceCharacterPainter : IPainter, PaintListener {
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180
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181 private static const char SPACE_SIGN= '\u00b7';
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182 private static const char IDEOGRAPHIC_SPACE_SIGN= '\u00b0';
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183 private static const char TAB_SIGN= '\u00bb';
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184 private static const char CARRIAGE_RETURN_SIGN= '\u00a4';
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185 private static const char LINE_FEED_SIGN= '\u00b6';
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186
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187 /** Indicates whether this painter is active. */
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188 private bool fIsActive= false;
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189 /** The source viewer this painter is attached to. */
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190 private ITextViewer fTextViewer;
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191 /** The viewer's widget. */
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192 private StyledText fTextWidget;
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193 /** Tells whether the advanced graphics sub system is available. */
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194 private bool fIsAdvancedGraphicsPresent;
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195
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196 /**
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197 * Creates a new painter for the given text viewer.
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198 *
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199 * @param textViewer the text viewer the painter should be attached to
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200 */
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201 public this(ITextViewer textViewer) {
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202 // super();
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203 fTextViewer= textViewer;
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204 fTextWidget= textViewer.getTextWidget();
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205 GC gc= new GC(fTextWidget);
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206 gc.setAdvanced(true);
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207 fIsAdvancedGraphicsPresent= gc.getAdvanced();
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208 gc.dispose();
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209 }
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210
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211 /*
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212 * @see org.eclipse.jface.text.IPainter#dispose()
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213 */
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214 public void dispose() {
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215 fTextViewer= null;
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216 fTextWidget= null;
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217 }
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218
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219 /*
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220 * @see org.eclipse.jface.text.IPainter#paint(int)
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221 */
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222 public void paint(int reason) {
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223 IDocument document= fTextViewer.getDocument();
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224 if (document is null) {
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225 deactivate(false);
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226 return;
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227 }
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228 if (!fIsActive) {
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229 fIsActive= true;
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230 fTextWidget.addPaintListener(this);
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231 redrawAll();
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232 } else if (reason is CONFIGURATION || reason is INTERNAL) {
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233 redrawAll();
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234 } else if (reason is TEXT_CHANGE) {
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235 // redraw current line only
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236 try {
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237 IRegion lineRegion =
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238 document.getLineInformationOfOffset(getDocumentOffset(fTextWidget.getCaretOffset()));
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239 int widgetOffset= getWidgetOffset(lineRegion.getOffset());
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240 int charCount= fTextWidget.getCharCount();
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241 int redrawLength= Math.min(lineRegion.getLength(), charCount - widgetOffset);
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242 if (widgetOffset >= 0 && redrawLength > 0) {
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243 fTextWidget.redrawRange(widgetOffset, redrawLength, true);
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244 }
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245 } catch (BadLocationException e) {
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246 // ignore
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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 /*
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252 * @see org.eclipse.jface.text.IPainter#deactivate(bool)
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253 */
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254 public void deactivate(bool redraw) {
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255 if (fIsActive) {
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256 fIsActive= false;
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257 fTextWidget.removePaintListener(this);
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258 if (redraw) {
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259 redrawAll();
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260 }
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261 }
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262 }
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parents:
diff changeset
263
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
264 /*
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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265 * @see org.eclipse.jface.text.IPainter#setPositionManager(org.eclipse.jface.text.IPaintPositionManager)
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266 */
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parents:
diff changeset
267 public void setPositionManager(IPaintPositionManager manager) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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268 // no need for a position manager
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parents:
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269 }
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parents:
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270
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
271 /*
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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272 * @see org.eclipse.swt.events.PaintListener#paintControl(org.eclipse.swt.events.PaintEvent)
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273 */
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parents:
diff changeset
274 public void paintControl(PaintEvent event) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
275 if (fTextWidget !is null) {
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parents:
diff changeset
276 handleDrawRequest(event.gc, event.x, event.y, event.width, event.height);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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277 }
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278 }
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parents:
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279
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
280 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
281 * Draw characters in view range.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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282 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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283 * @param gc
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parents:
diff changeset
284 * @param x
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parents:
diff changeset
285 * @param y
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
286 * @param w
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Frank Benoit <benoit@tionex.de>
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287 * @param h
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288 */
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parents:
diff changeset
289 private void handleDrawRequest(GC gc, int x, int y, int w, int h) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
290 int startLine= fTextWidget.getLineIndex(y);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
291 int endLine= fTextWidget.getLineIndex(y + h - 1);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
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292 if (startLine <= endLine && startLine < fTextWidget.getLineCount()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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diff changeset
293 if (fIsAdvancedGraphicsPresent) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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diff changeset
294 int alpha= gc.getAlpha();
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295 gc.setAlpha(100);
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diff changeset
296 drawLineRange(gc, startLine, endLine, x, w);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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297 gc.setAlpha(alpha);
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298 } else
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diff changeset
299 drawLineRange(gc, startLine, endLine, x, w);
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300 }
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parents:
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301 }
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302
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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303 /**
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
304 * Draw the given line range.
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Frank Benoit <benoit@tionex.de>
parents:
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305 *
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Frank Benoit <benoit@tionex.de>
parents:
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306 * @param gc
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307 * @param startLine first line number
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308 * @param endLine last line number (inclusive)
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parents:
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309 * @param x the X-coordinate of the drawing range
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310 * @param w the width of the drawing range
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311 */
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parents:
diff changeset
312 private void drawLineRange(GC gc, int startLine, int endLine, int x, int w) {
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313 final int viewPortWidth= fTextWidget.getClientArea().width;
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parents:
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314 for (int line= startLine; line <= endLine; line++) {
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parents:
diff changeset
315 int lineOffset= fTextWidget.getOffsetAtLine(line);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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316 // line end offset including line delimiter
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parents:
diff changeset
317 int lineEndOffset;
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parents:
diff changeset
318 if (line < fTextWidget.getLineCount() - 1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
319 lineEndOffset= fTextWidget.getOffsetAtLine(line + 1);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
320 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
321 lineEndOffset= fTextWidget.getCharCount();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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322 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
323 // line length excluding line delimiter
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
324 int lineLength= lineEndOffset - lineOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
325 while (lineLength > 0) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
diff changeset
326 char c= fTextWidget.getTextRange(lineOffset + lineLength - 1, 1).charAt(0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
327 if (c !is '\r' && c !is '\n') {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
328 break;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
329 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
330 --lineLength;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
331 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
332 // compute coordinates of last character on line
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
333 Point endOfLine= fTextWidget.getLocationAtOffset(lineOffset + lineLength);
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parents:
diff changeset
334 if (x - endOfLine.x > viewPortWidth) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
335 // line is not visible
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parents:
diff changeset
336 continue;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
337 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
338 // Y-coordinate of line
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
339 int y= fTextWidget.getLinePixel(line);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
340 // compute first visible char offset
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
341 int startOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
342 try {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
343 startOffset= fTextWidget.getOffsetAtLocation(new Point(x, y)) - 1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
344 if (startOffset - 2 <= lineOffset) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
345 startOffset= lineOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
346 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
347 } catch (IllegalArgumentException iae) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
348 startOffset= lineOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
349 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
350 // compute last visible char offset
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
351 int endOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
352 if (x + w >= endOfLine.x) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
353 // line end is visible
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
354 endOffset= lineEndOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
355 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
356 try {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
357 endOffset= fTextWidget.getOffsetAtLocation(new Point(x + w - 1, y)) + 1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
358 if (endOffset + 2 >= lineEndOffset) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
359 endOffset= lineEndOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
360 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
361 } catch (IllegalArgumentException iae) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
362 endOffset= lineEndOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
363 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
364 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
365 // draw character range
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
366 if (endOffset > startOffset) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
367 drawCharRange(gc, startOffset, endOffset);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
368 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
369 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
370 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
371
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
372 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
373 * Draw characters of content range.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
374 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
375 * @param gc the GC
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
376 * @param startOffset inclusive start index
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
377 * @param endOffset exclusive end index
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
378 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
379 private void drawCharRange(GC gc, int startOffset, int endOffset) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
380 StyledTextContent content= fTextWidget.getContent();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
381 int length= endOffset - startOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
382 String text= content.getTextRange(startOffset, length);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
383 StyleRange styleRange= null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
384 Color fg= null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
385 Point selection= fTextWidget.getSelection();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
386 StringBuffer visibleChar= new StringBuffer(10);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
387 for (int textOffset= 0; textOffset <= length; ++textOffset) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
388 int delta= 0;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
389 bool eol= false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
390 if (textOffset < length) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
391 delta= 1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
392 char c= text.charAt(textOffset);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
393 switch (c) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
394 case ' ' :
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
395 visibleChar.append(SPACE_SIGN);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
396 // 'continue' would improve performance but may produce drawing errors
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
397 // for long runs of space if width of space and dot differ
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
398 break;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
399 case '\u3000' : // ideographic whitespace
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
400 visibleChar.append(IDEOGRAPHIC_SPACE_SIGN);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
401 // 'continue' would improve performance but may produce drawing errors
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
402 // for long runs of space if width of space and dot differ
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
403 break;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
404 case '\t' :
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
405 visibleChar.append(TAB_SIGN);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
406 break;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
407 case '\r' :
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
408 visibleChar.append(CARRIAGE_RETURN_SIGN);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
409 if (textOffset >= length - 1 || text.charAt(textOffset + 1) !is '\n') {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
410 eol= true;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
411 break;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
412 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
413 continue;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
414 case '\n' :
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
415 visibleChar.append(LINE_FEED_SIGN);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
416 eol= true;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
417 break;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
418 default :
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
419 delta= 0;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
420 break;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
421 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
422 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
423 if (visibleChar.length() > 0) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
424 int widgetOffset= startOffset + textOffset - visibleChar.length() + delta;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
425 if (!eol || !isFoldedLine(content.getLineAtOffset(widgetOffset))) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
426 if (widgetOffset >= selection.x && widgetOffset < selection.y) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
427 fg= fTextWidget.getSelectionForeground();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
428 } else if (styleRange is null || styleRange.start + styleRange.length <= widgetOffset) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
429 styleRange= fTextWidget.getStyleRangeAtOffset(widgetOffset);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
430 if (styleRange is null || styleRange.foreground is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
431 fg= fTextWidget.getForeground();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
432 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
433 fg= styleRange.foreground;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
434 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
435 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
436 draw(gc, widgetOffset, visibleChar.toString(), fg);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
437 }
16
dbfb303e8fb0 first complete successful compile (win-only)
Frank Benoit <benoit@tionex.de>
parents: 12
diff changeset
438 visibleChar.setLength(0);
12
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
439 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
440 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
441 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
442
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
443 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
444 * Check if the given widget line is a folded line.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
445 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
446 * @param widgetLine the widget line number
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
447 * @return <code>true</code> if the line is folded
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
448 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
449 private bool isFoldedLine(int widgetLine) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
450 if ( cast(ITextViewerExtension5)fTextViewer ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
451 ITextViewerExtension5 extension= cast(ITextViewerExtension5)fTextViewer;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
452 int modelLine= extension.widgetLine2ModelLine(widgetLine);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
453 int widgetLine2= extension.modelLine2WidgetLine(modelLine + 1);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
454 return widgetLine2 is -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
455 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
456 return false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
457 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
458
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
459 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
460 * Redraw all of the text widgets visible content.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
461 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
462 private void redrawAll() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
463 fTextWidget.redraw();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
464 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
465
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
466 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
467 * Draw string at widget offset.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
468 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
469 * @param gc
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
470 * @param offset the widget offset
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
471 * @param s the string to be drawn
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
472 * @param fg the foreground color
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
473 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
474 private void draw(GC gc, int offset, String s, Color fg) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
475 // Compute baseline delta (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=165640)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
476 int baseline= fTextWidget.getBaseline(offset);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
477 FontMetrics fontMetrics= gc.getFontMetrics();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
478 int fontBaseline= fontMetrics.getAscent() + fontMetrics.getLeading();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
479 int baslineDelta= baseline - fontBaseline;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
480
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
481 Point pos= fTextWidget.getLocationAtOffset(offset);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
482 gc.setForeground(fg);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
483 gc.drawString(s, pos.x, pos.y + baslineDelta, true);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
484 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
485
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
486 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
487 * Convert a document offset to the corresponding widget offset.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
488 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
489 * @param documentOffset
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
490 * @return widget offset
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
491 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
492 private int getWidgetOffset(int documentOffset) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
493 if ( cast(ITextViewerExtension5)fTextViewer ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
494 ITextViewerExtension5 extension= cast(ITextViewerExtension5)fTextViewer;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
495 return extension.modelOffset2WidgetOffset(documentOffset);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
496 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
497 IRegion visible= fTextViewer.getVisibleRegion();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
498 int widgetOffset= documentOffset - visible.getOffset();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
499 if (widgetOffset > visible.getLength()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
500 return -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
501 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
502 return widgetOffset;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
503 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
504
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
505 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
506 * Convert a widget offset to the corresponding document offset.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
507 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
508 * @param widgetOffset
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
509 * @return document offset
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
510 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
511 private int getDocumentOffset(int widgetOffset) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
512 if ( cast(ITextViewerExtension5)fTextViewer ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
513 ITextViewerExtension5 extension= cast(ITextViewerExtension5)fTextViewer;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
514 return extension.widgetOffset2ModelOffset(widgetOffset);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
515 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
516 IRegion visible= fTextViewer.getVisibleRegion();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
517 if (widgetOffset > visible.getLength()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
518 return -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
519 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
520 return widgetOffset + visible.getOffset();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
521 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
522
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
523 }