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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module dwtx.jface.text.source.OverviewRulerHoverManager;
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14
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131
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15 import dwtx.jface.text.source.ISharedTextColors; // packageimport
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16 import dwtx.jface.text.source.ILineRange; // packageimport
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17 import dwtx.jface.text.source.IAnnotationPresentation; // packageimport
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18 import dwtx.jface.text.source.IVerticalRulerInfoExtension; // packageimport
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19 import dwtx.jface.text.source.ICharacterPairMatcher; // packageimport
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20 import dwtx.jface.text.source.TextInvocationContext; // packageimport
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21 import dwtx.jface.text.source.LineChangeHover; // packageimport
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22 import dwtx.jface.text.source.IChangeRulerColumn; // packageimport
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23 import dwtx.jface.text.source.IAnnotationMap; // packageimport
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24 import dwtx.jface.text.source.IAnnotationModelListenerExtension; // packageimport
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25 import dwtx.jface.text.source.ISourceViewerExtension2; // packageimport
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26 import dwtx.jface.text.source.IAnnotationHover; // packageimport
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27 import dwtx.jface.text.source.ContentAssistantFacade; // packageimport
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28 import dwtx.jface.text.source.IAnnotationAccess; // packageimport
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29 import dwtx.jface.text.source.IVerticalRulerExtension; // packageimport
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30 import dwtx.jface.text.source.IVerticalRulerColumn; // packageimport
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31 import dwtx.jface.text.source.LineNumberRulerColumn; // packageimport
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32 import dwtx.jface.text.source.MatchingCharacterPainter; // packageimport
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33 import dwtx.jface.text.source.IAnnotationModelExtension; // packageimport
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34 import dwtx.jface.text.source.ILineDifferExtension; // packageimport
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35 import dwtx.jface.text.source.DefaultCharacterPairMatcher; // packageimport
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36 import dwtx.jface.text.source.LineNumberChangeRulerColumn; // packageimport
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37 import dwtx.jface.text.source.IAnnotationAccessExtension; // packageimport
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38 import dwtx.jface.text.source.ISourceViewer; // packageimport
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39 import dwtx.jface.text.source.AnnotationModel; // packageimport
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40 import dwtx.jface.text.source.ILineDifferExtension2; // packageimport
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41 import dwtx.jface.text.source.IAnnotationModelListener; // packageimport
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42 import dwtx.jface.text.source.IVerticalRuler; // packageimport
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43 import dwtx.jface.text.source.DefaultAnnotationHover; // packageimport
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44 import dwtx.jface.text.source.SourceViewer; // packageimport
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45 import dwtx.jface.text.source.SourceViewerConfiguration; // packageimport
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46 import dwtx.jface.text.source.AnnotationBarHoverManager; // packageimport
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47 import dwtx.jface.text.source.CompositeRuler; // packageimport
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48 import dwtx.jface.text.source.ImageUtilities; // packageimport
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49 import dwtx.jface.text.source.VisualAnnotationModel; // packageimport
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50 import dwtx.jface.text.source.IAnnotationModel; // packageimport
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51 import dwtx.jface.text.source.ISourceViewerExtension3; // packageimport
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52 import dwtx.jface.text.source.ILineDiffInfo; // packageimport
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53 import dwtx.jface.text.source.VerticalRulerEvent; // packageimport
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54 import dwtx.jface.text.source.ChangeRulerColumn; // packageimport
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55 import dwtx.jface.text.source.ILineDiffer; // packageimport
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56 import dwtx.jface.text.source.AnnotationModelEvent; // packageimport
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57 import dwtx.jface.text.source.AnnotationColumn; // packageimport
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58 import dwtx.jface.text.source.AnnotationRulerColumn; // packageimport
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59 import dwtx.jface.text.source.IAnnotationHoverExtension; // packageimport
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60 import dwtx.jface.text.source.AbstractRulerColumn; // packageimport
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61 import dwtx.jface.text.source.ISourceViewerExtension; // packageimport
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62 import dwtx.jface.text.source.AnnotationMap; // packageimport
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63 import dwtx.jface.text.source.IVerticalRulerInfo; // packageimport
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64 import dwtx.jface.text.source.IAnnotationModelExtension2; // packageimport
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65 import dwtx.jface.text.source.LineRange; // packageimport
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66 import dwtx.jface.text.source.IAnnotationAccessExtension2; // packageimport
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67 import dwtx.jface.text.source.VerticalRuler; // packageimport
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68 import dwtx.jface.text.source.JFaceTextMessages; // packageimport
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69 import dwtx.jface.text.source.IOverviewRuler; // packageimport
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70 import dwtx.jface.text.source.Annotation; // packageimport
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71 import dwtx.jface.text.source.IVerticalRulerListener; // packageimport
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72 import dwtx.jface.text.source.ISourceViewerExtension4; // packageimport
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73 import dwtx.jface.text.source.AnnotationPainter; // packageimport
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74 import dwtx.jface.text.source.IAnnotationHoverExtension2; // packageimport
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75 import dwtx.jface.text.source.OverviewRuler; // packageimport
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76
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77
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129
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78 import dwt.dwthelper.utils;
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79
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80
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81
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82 import dwt.custom.StyledText;
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83 import dwt.graphics.Point;
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84 import dwt.graphics.Rectangle;
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85 import dwt.widgets.ScrollBar;
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86 import dwtx.jface.text.IInformationControlCreator;
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87
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88 /**
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89 * This manager controls the layout, content, and visibility of an information
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90 * control in reaction to mouse hover events issued by the overview ruler of a
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91 * source viewer.
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92 *
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93 * @since 2.1
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94 */
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95 class OverviewRulerHoverManager : AnnotationBarHoverManager {
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96
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97 /**
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98 * Creates an overview hover manager with the given parameters. In addition,
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99 * the hovers anchor is RIGHT and the margin is 5 points to the right.
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100 *
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101 * @param ruler the overview ruler this manager connects to
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102 * @param sourceViewer the source viewer this manager connects to
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103 * @param annotationHover the annotation hover providing the information to be displayed
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104 * @param creator the information control creator
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105 */
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106 public OverviewRulerHoverManager(IOverviewRuler ruler, ISourceViewer sourceViewer, IAnnotationHover annotationHover, IInformationControlCreator creator) {
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107 super(ruler, sourceViewer, annotationHover, creator);
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108 setAnchor(ANCHOR_LEFT);
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109 StyledText textWidget= sourceViewer.getTextWidget();
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110 if (textWidget !is null) {
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111 ScrollBar verticalBar= textWidget.getVerticalBar();
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112 if (verticalBar !is null)
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113 setMargins(verticalBar.getSize().x, 5);
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114 }
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115 }
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116
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117 /*
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118 * @see AbstractHoverInformationControlManager#computeInformation()
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119 */
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120 protected void computeInformation() {
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121 Point location= getHoverEventLocation();
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122 int line= getVerticalRulerInfo().toDocumentLineNumber(location.y);
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123 IAnnotationHover hover= getAnnotationHover();
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124
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125 IInformationControlCreator controlCreator= null;
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126 if (hover instanceof IAnnotationHoverExtension)
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127 controlCreator= ((IAnnotationHoverExtension)hover).getHoverControlCreator();
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128 setCustomInformationControlCreator(controlCreator);
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129
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130 setInformation(hover.getHoverInfo(getSourceViewer(), line), computeArea(location.y));
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131 }
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132
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133 /**
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134 * Determines graphical area covered for which the hover is valid.
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135 *
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136 * @param y y-coordinate in the vertical ruler
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137 * @return the graphical extend where the hover is valid
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138 */
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139 private Rectangle computeArea(int y) {
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140 // This is OK (see constructor)
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141 IOverviewRuler overviewRuler= (IOverviewRuler) getVerticalRulerInfo();
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142
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143 int hover_height= overviewRuler.getAnnotationHeight();
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144 int hover_width= getVerticalRulerInfo().getControl().getSize().x;
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145
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146 // Calculate y-coordinate for hover
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147 int hover_y= y;
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148 bool hasAnnotation= true;
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149 while (hasAnnotation && hover_y > y - hover_height) {
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150 hover_y--;
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151 hasAnnotation= overviewRuler.hasAnnotation(hover_y);
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152 }
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153 hover_y++;
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154
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155 return new Rectangle(0, hover_y, hover_width, hover_height);
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156 }
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157 }
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