Examples of org.eclipse.jface.text.source.IAnnotationModel

org.eclipse.jface.text.source.IAnnotationModel
This interface defines the model for managing annotations attached to a document. The model maintains a set of annotations for a given document and notifies registered annotation model listeners about annotation model changes. It also provides methods for querying the current position of an annotation managed by this model.
In order to provide backward compatibility for clients of IAnnotationModel, extension interfaces are used to provide a means of evolution. The following extension interfaces exist:
- {@link org.eclipse.jface.text.source.IAnnotationModelExtension} since version 3.0 introducing the conceptof model piggybacking annotation models, modification time stamps, and enhanced manipulation methods.
- {@link org.eclipse.jface.text.source.IAnnotationModelExtension2} since version 3.4 allows to retrieveannotations within a given region.
Clients may implement this interface or use the default implementation provided by AnnotationModel. @see org.eclipse.jface.text.source.IAnnotationModelExtension @see org.eclipse.jface.text.source.IAnnotationModelExtension2 @see org.eclipse.jface.text.source.Annotation @see org.eclipse.jface.text.source.IAnnotationModelListener

      return value.buffer;
    }
    
    fDocumentProvider.connect(input);
    IDocument document= fDocumentProvider.getDocument(input);
    IAnnotationModel annotationModel= fDocumentProvider.getAnnotationModel(input);
    annotationModel.connect(document);
    value= new Value(new TextBuffer(document), input, document, annotationModel);
    fFileValueMap.put(input, value);
    fBufferValueMap.put(value.buffer, value);
    value.references++;
    return value.buffer;

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    {
        if (! isFoldingEnabled()) { return; }


        try
        {
            IAnnotationModel annotations = getAnnotations();
            if (annotations == null) { return; }


            Set tuples = computeFoldPositions();


            removeFolds(tuples);

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  private IAnnotationModelExtension getModel() {
    if (getTextEditor() == null)
      return null;
    IDocumentProvider provider= getTextEditor().getDocumentProvider();
    IEditorInput editorInput= getTextEditor().getEditorInput();
    IAnnotationModel m= provider.getAnnotationModel(editorInput);
    if (m instanceof IAnnotationModelExtension)
      return (IAnnotationModelExtension)m;
    return null;
  }

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   *
   * @return the marker annotation model
   */
  protected AbstractMarkerAnnotationModel getAnnotationModel() {
    IDocumentProvider provider= fTextEditor.getDocumentProvider();
    IAnnotationModel model= provider.getAnnotationModel(fTextEditor.getEditorInput());
    if (model instanceof AbstractMarkerAnnotationModel)
      return (AbstractMarkerAnnotationModel) model;
    return null;
  }

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   */
  private boolean ensureQuickDiffProvider(String diffProviderId) {
    if (!isShowingChangeInformation())
      installChangeRulerModel(fDelegate); // FIXME pass provider id
    
    IAnnotationModel annotationModel= fViewer.getAnnotationModel();
    IAnnotationModel oldDiffer= getDiffer();
    if (oldDiffer == null && annotationModel != null)
      return false; // quick diff is enabled, but no differ? not working for whatever reason


    if (annotationModel == null)
      annotationModel= new AnnotationModel();
    if (!(annotationModel instanceof IAnnotationModelExtension))
      return false;


    QuickDiff util= new QuickDiff();
    Object oldDifferId= util.getConfiguredQuickDiffProvider(oldDiffer);
    if (oldDifferId.equals(diffProviderId)) {
      if (oldDiffer instanceof ILineDifferExtension)
        ((ILineDifferExtension) oldDiffer).resume();
      return true;
    }


    // Check whether the desired provider is available at all
    IAnnotationModel newDiffer= util.createQuickDiffAnnotationModel(getEditor(), diffProviderId);
    if (util.getConfiguredQuickDiffProvider(newDiffer).equals(oldDifferId)) {
      if (oldDiffer instanceof ILineDifferExtension)
        ((ILineDifferExtension) oldDiffer).resume();
        return true;
    }

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   * 
   * @param column the column to install the model on
   */
  private void installChangeRulerModel(IVerticalRulerColumn column) {
    if (column instanceof IChangeRulerColumn) {
      IAnnotationModel model= getAnnotationModelWithDiffer();
      ((IChangeRulerColumn) column).setModel(model);
      if (model != null) {
        ISourceViewer viewer= fViewer;
        if (viewer != null && viewer.getAnnotationModel() == null)
          viewer.showAnnotations(true);

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   * @param column the column to remove the model from
   */
  private void uninstallChangeRulerModel(IVerticalRulerColumn column) {
    if (column instanceof IChangeRulerColumn)
      ((IChangeRulerColumn) column).setModel(null);
    IAnnotationModel model= getDiffer();
    if (model instanceof ILineDifferExtension)
      ((ILineDifferExtension) model).suspend();


    ISourceViewer viewer= fViewer;
    if (viewer != null && viewer.getAnnotationModel() == null)

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  private IAnnotationModel getAnnotationModelWithDiffer() {
    ISourceViewer viewer= fViewer;
    if (viewer == null)
      return null;
    
    IAnnotationModel m= viewer.getAnnotationModel();
    IAnnotationModelExtension model= null;
    if (m instanceof IAnnotationModelExtension)
      model= (IAnnotationModelExtension) m;
    
    IAnnotationModel differ= getDiffer();
    // create diff model if it doesn't
    if (differ == null) {
      IPreferenceStore store= getPreferenceStore();
      if (store != null) {
        String defaultId= store.getString(AbstractDecoratedTextEditorPreferenceConstants.QUICK_DIFF_DEFAULT_PROVIDER);

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    // get annotation model extension
    ISourceViewer viewer= fViewer;
    if (viewer == null)
      return null;


    IAnnotationModel m= viewer.getAnnotationModel();
    if (m == null && fDelegate instanceof IChangeRulerColumn)
      m= ((IChangeRulerColumn)fDelegate).getModel();
    
    if (!(m instanceof IAnnotationModelExtension))
      return null;

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        String initalLineDelimiter= getLineDelimiterPreference(input.getFile()); 
        if (initalLineDelimiter != null)
          ((IDocumentExtension4)d).setInitialLineDelimiter(initalLineDelimiter);
      }


      IAnnotationModel m= createAnnotationModel(element);
      FileSynchronizer f= new FileSynchronizer(input);
      f.install();


      FileInfo info= new FileInfo(d, m, f);
      info.fModificationStamp= computeModificationStamp(input.getFile());

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