Examples of org.eclipse.jface.text.link.LinkedPositionGroup

org.eclipse.jface.text.link.LinkedPositionGroup
A group of positions in multiple documents that are simultaneously modified - if one gets edited, all other positions in a group are edited the same way. All linked positions in a group have the same content.
Normally, new positions are given a {@link LinkedPosition#getSequenceNumber() sequence number} which can be used byclients, e.g. in the UI as tab stop weight. If {@link #NO_STOP} is used as weight, a position will not be visited.If {@link #NO_STOP} is used for all positions, the first position in a document is taken asthe only stop as to comply with the behavior of the old linked position infrastructure.

Clients may instantiate this class.
@since 3.0 @noextend This class is not intended to be subclassed by clients.

        LinkedModeModel model = new LinkedModeModel();
        int exitPos = -1;
        
        for (int i = 0; i < tabGroups.length; i++) {
          TabStopGroup tabGroup = tabStops.getTabStopGroup(tabGroups[i]);
          LinkedPositionGroup group = null;
          
          if (tabGroups[i].equals("carets") || tabGroups[i].equals("0")) {
            int caretCount = tabGroup.getTabStopList().size();
            for (int j = 0; j < caretCount; j++) {
              TabStop ts = tabGroup.getTabStopList().get(j);
              group = new LinkedPositionGroup();
              group.addPosition(new LinkedPosition(doc, start + ts.getStart(), ts.getLength()));
              model.addGroup(group);
              if (j == caretCount - 1) {
                exitPos = start + ts.getStart();
              }              
            }
          } else {
            group = new LinkedPositionGroup();
            
            for (int j = 0; j < tabGroup.getTabStopList().size(); j++) {
              TabStop ts = tabGroup.getTabStopList().get(j);
              group.addPosition(new LinkedPosition(doc, start + ts.getStart(), ts.getLength()));
            }
            
            model.addGroup(group);
          }
        }

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  }


  public static void renameHtmlTag(FuzzyXMLElement element, ITextViewer htmlViewer, final WodParserCache cache) throws BadLocationException {
    IDocument htmlDocument = htmlViewer.getDocument();
    LinkedModeModel.closeAllModels(htmlDocument);
    LinkedPositionGroup linkedGroup = new LinkedPositionGroup();


    linkedGroup.addPosition(new LinkedPosition(htmlDocument, element.getOffset() + element.getNameOffset() + 1, element.getNameLength(), 0));
    if (element.hasCloseTag()) {
      linkedGroup.addPosition(new LinkedPosition(htmlDocument, element.getCloseTagOffset() + element.getCloseNameOffset() + 1, element.getCloseNameLength(), 1));
    }


    QuickRenameRefactoring.enterLinkedMode(linkedGroup, cache, htmlViewer);
  }

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    return sequence;
  }


  public static void renameElement(String woElementName, ITextViewer htmlViewer, ITextViewer wodViewer, final WodParserCache cache, boolean highlightHtml) throws Exception {
    int sequence = 0;
    LinkedPositionGroup linkedGroup = new LinkedPositionGroup();
    IDocument htmlDocument = htmlViewer.getDocument();
    IDocument wodDocument = wodViewer.getDocument();
    if (highlightHtml) {
      sequence = QuickRenameRefactoring.linkHtml(woElementName, htmlDocument, linkedGroup, cache, sequence);
      sequence = QuickRenameRefactoring.linkWod(woElementName, wodDocument, linkedGroup, cache, sequence);

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                Integer len = offsetsAndLens.get(i);
                if (i == 1) {
                    firstParameterLen = len;
                }
                int location = offset + iPar + offs + 1;
                LinkedPositionGroup group = new LinkedPositionGroup();
                ProposalPosition proposalPosition = new ProposalPosition(doc, location, len, 0,
                        new ICompletionProposal[0]);
                group.addPosition(proposalPosition);
                model.addGroup(group);
            }


            model.forceInstall();

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            if (linkOffset == -1 || linkExitPos == -1) {
                return true; //it was handled (without the link)
            }


            if (prefs.getAutoLink()) {
                LinkedPositionGroup group = new LinkedPositionGroup();
                group.addPosition(new LinkedPosition(doc, linkOffset, linkLen, LinkedPositionGroup.NO_STOP));


                LinkedModeModel model = new LinkedModeModel();
                model.addGroup(group);
                model.forceInstall();

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            int lineDelimiterLen = lineDelimiter != null ? lineDelimiter.length() : 0;


            ISourceViewer viewer = sourceViewer;


            LinkedModeModel model = new LinkedModeModel();
            LinkedPositionGroup group = new LinkedPositionGroup();


            //the len-3 is because of the end of the string: " = " because the replacement string is
            //something like "xxx = " 
            ProposalPosition proposalPosition = new ProposalPosition(document, fReplacementOffset,
                    fReplacementString.length() - 3, 0, new ICompletionProposal[0]);
            group.addPosition(proposalPosition);


            model.addGroup(group);
            model.forceInstall();


            final LinkedModeUI ui = new EditorLinkedModeUI(model, viewer);

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                public IStatus runInUIThread(IProgressMonitor monitor) {
                    try {
                        ISourceViewer viewer = pyEdit.getPySourceViewer();
                        IDocument document = viewer.getDocument();
                        PySelection ps = new PySelection(pyEdit);
                        LinkedPositionGroup group = new LinkedPositionGroup();


                        if (!fillWithOccurrences(document, group, new NullProgressMonitor(), ps)) {
                            return Status.OK_STATUS;
                        }


                        if (group.isEmpty()) {
                            return Status.OK_STATUS;
                        }


                        LinkedModeModel model = new LinkedModeModel();
                        model.addGroup(group);

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            document.replace(offset, length, buffer.toString());


            BracketLevel level = new BracketLevel();
            fBracketLevelStack.push(level);


            LinkedPositionGroup group = new LinkedPositionGroup();
            group.addPosition(new LinkedPosition(document, offset + 1, 0, LinkedPositionGroup.NO_STOP));


            LinkedModeModel model = new LinkedModeModel();
            model.addLinkingListener(this);
            model.addGroup(group);
            model.forceInstall();

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        TemplateVariable variable= variables[i];


        if (variable.isUnambiguous())
          continue;


        LinkedPositionGroup group= new LinkedPositionGroup();


        int[] offsets= variable.getOffsets();
        int length= variable.getLength();


        LinkedPosition first;
        {
          String[] values= variable.getValues();
          ICompletionProposal[] proposals= new ICompletionProposal[values.length];
          for (int j= 0; j < values.length; j++) {
            ensurePositionCategoryInstalled(document, model);
            Position pos= new Position(offsets[0] + start, length);
            document.addPosition(getCategory(), pos);
            proposals[j]= new PositionBasedCompletionProposal(values[j], pos, length);
          }


          if (proposals.length > 1)
            first= new ProposalPosition(document, offsets[0] + start, length, proposals);
          else
            first= new LinkedPosition(document, offsets[0] + start, length);
        }


        for (int j= 0; j != offsets.length; j++)
          if (j == 0)
            group.addPosition(first);
          else
            group.addPosition(new LinkedPosition(document, offsets[j] + start, length));


        model.addGroup(group);
        hasPositions= true;
      }

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  public void run() {
    ISourceViewer viewer = editor.getViewer();
    IDocument document = viewer.getDocument();
    int offset = ((ITextSelection) editor.getSelectionProvider().getSelection()).getOffset();
    LinkedPositionGroup group = new LinkedPositionGroup();
    OccurrencesFinder finder = new OccurrencesFinder(editor, editor.getCFModel(), document, offset);
    List positions = finder.perform();
    if (positions == null) {
      return;
    }


    addPositionsToGroup(offset, positions, document, group);
    if (group.isEmpty()) {
      return;
    }
    try {
      LinkedModeModel model = new LinkedModeModel();
      model.addGroup(group);

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