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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 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.link.ProposalPosition;
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14
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15 import dwt.dwthelper.utils;
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16
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17 import java.util.Arrays;
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18
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19 import dwtx.jface.text.IDocument;
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20 import dwtx.jface.text.contentassist.ICompletionProposal;
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21
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22 /**
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23 * LinkedPosition with added completion proposals.
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24 * <p>
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25 * Clients may instantiate or extend this class.
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26 * </p>
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27 *
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28 * @since 3.0
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29 */
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30 public class ProposalPosition : LinkedPosition {
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31
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32 /**
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33 * The proposals
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34 */
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35 private ICompletionProposal[] fProposals;
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36
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37 /**
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38 * Creates a new instance.
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39 *
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40 * @param document the document
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41 * @param offset the offset of the position
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42 * @param length the length of the position
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43 * @param sequence the iteration sequence rank
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44 * @param proposals the proposals to be shown when entering this position
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45 */
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46 public ProposalPosition(IDocument document, int offset, int length, int sequence, ICompletionProposal[] proposals) {
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47 super(document, offset, length, sequence);
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48 fProposals= copy(proposals);
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49 }
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50
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51 /**
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52 * Creates a new instance, with no sequence number.
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53 *
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54 * @param document the document
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55 * @param offset the offset of the position
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56 * @param length the length of the position
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57 * @param proposals the proposals to be shown when entering this position
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58 */
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59 public ProposalPosition(IDocument document, int offset, int length, ICompletionProposal[] proposals) {
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60 super(document, offset, length, LinkedPositionGroup.NO_STOP);
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61 fProposals= copy(proposals);
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62 }
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63
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64 /*
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65 * @since 3.1
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66 */
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67 private ICompletionProposal[] copy(ICompletionProposal[] proposals) {
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68 if (proposals !is null) {
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69 ICompletionProposal[] copy= new ICompletionProposal[proposals.length];
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70 System.arraycopy(proposals, 0, copy, 0, proposals.length);
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71 return copy;
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72 }
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73 return null;
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74 }
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75
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76 /*
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77 * @see java.lang.Object#equals(java.lang.Object)
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78 */
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79 public bool equals(Object o) {
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80 if (o instanceof ProposalPosition) {
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81 if (super.equals(o)) {
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82 return Arrays.equals(fProposals, ((ProposalPosition)o).fProposals);
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83 }
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84 }
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85 return false;
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86 }
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87
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88 /**
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89 * Returns the proposals attached to this position. The returned array is owned by
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90 * this <code>ProposalPosition</code> and may not be modified by clients.
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91 *
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92 * @return an array of choices, including the initial one. Callers must not
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93 * modify it.
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94 */
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95 public ICompletionProposal[] getChoices() {
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96 return fProposals;
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97 }
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98
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99 /*
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100 * @see dwtx.jdt.internal.ui.text.link.LinkedPosition#hashCode()
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101 */
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102 public int hashCode() {
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103 return super.hashCode() | (fProposals is null ? 0 : fProposals.hashCode());
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104 }
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105 }
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