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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module dwtx.jface.text.source.projection.AnnotationBag;
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14
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131
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15 import dwtx.jface.text.source.projection.ProjectionViewer; // packageimport
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16 import dwtx.jface.text.source.projection.ProjectionSupport; // packageimport
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17 import dwtx.jface.text.source.projection.IProjectionPosition; // packageimport
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18 import dwtx.jface.text.source.projection.ProjectionSummary; // packageimport
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19 import dwtx.jface.text.source.projection.ProjectionAnnotationHover; // packageimport
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20 import dwtx.jface.text.source.projection.ProjectionRulerColumn; // packageimport
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21 import dwtx.jface.text.source.projection.ProjectionAnnotationModel; // packageimport
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22 import dwtx.jface.text.source.projection.SourceViewerInformationControl; // packageimport
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23 import dwtx.jface.text.source.projection.IProjectionListener; // packageimport
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24 import dwtx.jface.text.source.projection.ProjectionAnnotation; // packageimport
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25
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26
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129
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27 import dwt.dwthelper.utils;
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28
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29 import java.util.HashSet;
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30 import java.util.Iterator;
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31 import java.util.Set;
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32
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33 import dwtx.jface.text.source.Annotation;
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34
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35 /**
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36 * A bag of annotations.
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37 * <p>
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38 * This class is not intended to be subclassed.
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39 * </p>
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40 *
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41 * @since 3.0
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42 * @noextend This class is not intended to be subclassed by clients.
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43 */
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44 public class AnnotationBag : Annotation {
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45
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46 private Set fAnnotations;
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47
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48 /**
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49 * Creates a new annotation bag.
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50 *
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51 * @param type the annotation type
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52 */
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53 public AnnotationBag(String type) {
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54 super(type, false, null);
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55 }
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56
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57 /**
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58 * Adds the given annotation to the annotation bag.
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59 *
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60 * @param annotation the annotation to add
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61 */
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62 public void add(Annotation annotation) {
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63 if (fAnnotations is null)
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64 fAnnotations= new HashSet(2);
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65 fAnnotations.add(annotation);
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66 }
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67
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68 /**
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69 * Removes the given annotation from the annotation bag.
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70 *
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71 * @param annotation the annotation to remove
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72 */
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73 public void remove(Annotation annotation) {
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74 if (fAnnotations !is null) {
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75 fAnnotations.remove(annotation);
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76 if (fAnnotations.isEmpty())
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77 fAnnotations= null;
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78 }
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79 }
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80
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81 /**
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82 * Returns whether the annotation bag is empty.
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83 *
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84 * @return <code>true</code> if the annotation bag is empty, <code>false</code> otherwise
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85 */
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86 public bool isEmpty() {
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87 return fAnnotations is null;
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88 }
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89
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90 /**
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91 * Returns an iterator for all annotation inside this
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92 * annotation bag or <code>null</code> if the bag is empty.
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93 *
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94 * @return an iterator for all annotations in the bag or <code>null</code>
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95 * @since 3.1
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96 */
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97 public Iterator iterator() {
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98 if (!isEmpty())
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99 return fAnnotations.iterator();
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100 return null;
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101 }
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102 }
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