org.eclipse.jface.text.source.IAnnotationModel#removeAnnotation ( )源码实例Demo

private void removeOccurrenceAnnotations() {
	// fMarkOccurrenceModificationStamp=
	// IDocumentExtension4.UNKNOWN_MODIFICATION_STAMP;
	// fMarkOccurrenceTargetRegion= null;

	IDocumentProvider documentProvider = getDocumentProvider();
	if (documentProvider == null)
		return;

	IAnnotationModel annotationModel = documentProvider.getAnnotationModel(getEditorInput());
	if (annotationModel == null || fOccurrenceAnnotations == null)
		return;

	synchronized (getLockObject(annotationModel)) {
		if (annotationModel instanceof IAnnotationModelExtension) {
			((IAnnotationModelExtension) annotationModel).replaceAnnotations(fOccurrenceAnnotations, null);
		} else {
			for (int i = 0, length = fOccurrenceAnnotations.length; i < length; i++)
				annotationModel.removeAnnotation(fOccurrenceAnnotations[i]);
		}
		fOccurrenceAnnotations = null;
	}
}
 

void removeOccurrenceAnnotations() {
	fMarkOccurrenceModificationStamp= IDocumentExtension4.UNKNOWN_MODIFICATION_STAMP;
	fMarkOccurrenceTargetRegion= null;

	IDocumentProvider documentProvider= getDocumentProvider();
	if (documentProvider == null)
		return;

	IAnnotationModel annotationModel= documentProvider.getAnnotationModel(getEditorInput());
	if (annotationModel == null || fOccurrenceAnnotations == null)
		return;

	synchronized (getLockObject(annotationModel)) {
		if (annotationModel instanceof IAnnotationModelExtension) {
			((IAnnotationModelExtension)annotationModel).replaceAnnotations(fOccurrenceAnnotations, null);
		} else {
			for (int i= 0, length= fOccurrenceAnnotations.length; i < length; i++)
				annotationModel.removeAnnotation(fOccurrenceAnnotations[i]);
		}
		fOccurrenceAnnotations= null;
	}
}
 

/**
 * Clears all annotations.
 */
private void clearAnnotations( )
{
	IAnnotationModel annotationModel = scriptViewer.getAnnotationModel( );

	if ( annotationModel != null )
	{
		for ( Iterator iterator = annotationModel.getAnnotationIterator( ); iterator.hasNext( ); )
		{
			Annotation annotation = (Annotation) iterator.next( );

			if ( annotation != null &&
					IReportGraphicConstants.ANNOTATION_ERROR.equals( annotation.getType( ) ) )
			{
				annotationModel.removeAnnotation( annotation );
			}
		}
	}
}
 

/**
 * Removes annotations and replaces them in one step.
 *
 * @param model The {@link IAnnotationModel} that should be cleaned.
 * @param annotationsToRemove The annotations to remove.
 * @param annotationsToAdd The annotations to add.
 */
public void replaceAnnotationsInModel(
    IAnnotationModel model,
    Collection<? extends Annotation> annotationsToRemove,
    Map<? extends Annotation, Position> annotationsToAdd) {

  if (model instanceof IAnnotationModelExtension) {
    IAnnotationModelExtension extension = (IAnnotationModelExtension) model;
    extension.replaceAnnotations(
        annotationsToRemove.toArray(new Annotation[annotationsToRemove.size()]),
        annotationsToAdd);
  } else {
    if (log.isTraceEnabled())
      log.trace("AnnotationModel " + model + " does not support IAnnotationModelExtension");

    for (Annotation annotation : annotationsToRemove) {
      model.removeAnnotation(annotation);
    }

    for (Entry<? extends Annotation, Position> entry : annotationsToAdd.entrySet()) {
      model.addAnnotation(entry.getKey(), entry.getValue());
    }
  }
}
 

/**
 * Removes all existing annotations
 * @param model AnnotationModel
 */
private void removeOldAnnotations(IAnnotationModel model) {

    for (Iterator<Annotation> it= fOldAnnotations.iterator(); it.hasNext();) {
        Annotation annotation= (Annotation) it.next();
        model.removeAnnotation(annotation);
    }

    fOldAnnotations.clear();
}
 

private void calculateLightBulb(IAnnotationModel model, IInvocationContext context) {
	boolean needsAnnotation= JavaCorrectionProcessor.hasAssists(context);
	if (fIsAnnotationShown) {
		model.removeAnnotation(fAnnotation);
	}
	if (needsAnnotation) {
		model.addAnnotation(fAnnotation, new Position(context.getSelectionOffset(), context.getSelectionLength()));
	}
	fIsAnnotationShown= needsAnnotation;
}
 

private void removeLightBulb(IAnnotationModel model) {
	synchronized (this) {
		if (fIsAnnotationShown) {
			model.removeAnnotation(fAnnotation);
			fIsAnnotationShown= false;
		}
	}
}
 

/**
 * Given the offset, tries to determine if we're on an HTML close/start tag, and if so it will find the matching
 * open/close and highlight the pair.
 * 
 * @param offset
 */
private void highlightTagPair(int offset)
{
	IDocumentProvider documentProvider = getDocumentProvider();
	if (documentProvider == null)
	{
		return;
	}
	IAnnotationModel annotationModel = documentProvider.getAnnotationModel(getEditorInput());
	if (annotationModel == null)
	{
		return;
	}

	if (fTagPairOccurrences != null)
	{
		// if the offset is included by one of these two positions, we don't need to wipe and re-calculate!
		for (Position pos : fTagPairOccurrences.values())
		{
			if (pos.includes(offset))
			{
				return;
			}
		}
		// New position, wipe the existing annotations in preparation for re-calculating...
		for (Annotation a : fTagPairOccurrences.keySet())
		{
			annotationModel.removeAnnotation(a);
		}
		fTagPairOccurrences = null;
	}

	// Calculate current pair
	Map<Annotation, Position> occurrences = new HashMap<Annotation, Position>();
	IDocument document = getSourceViewer().getDocument();

	IParseNode node = getASTNodeAt(offset, getAST());
	if (node instanceof XMLElementNode)
	{
		XMLElementNode en = (XMLElementNode) node;
		if (!en.isSelfClosing())
		{
			IRegion match = TagUtil.findMatchingTag(document, offset, tagPartitions);
			if (match != null)
			{
				// TODO Compare versus last positions, if they're the same don't wipe out the old ones and add new
				// ones!
				occurrences.put(new Annotation(IXMLEditorConstants.TAG_PAIR_OCCURRENCE_ID, false, null),
						new Position(match.getOffset(), match.getLength()));

				try
				{
					// The current tag we're in!
					ITypedRegion partition = document.getPartition(offset);
					occurrences.put(new Annotation(IXMLEditorConstants.TAG_PAIR_OCCURRENCE_ID, false, null),
							new Position(partition.getOffset(), partition.getLength()));
				}
				catch (BadLocationException e)
				{
					IdeLog.logError(XMLPlugin.getDefault(), e);
				}
				for (Map.Entry<Annotation, Position> entry : occurrences.entrySet())
				{
					annotationModel.addAnnotation(entry.getKey(), entry.getValue());
				}
				fTagPairOccurrences = occurrences;
				return;
			}
		}
	}
	// no new pair, so don't highlight anything
	fTagPairOccurrences = null;
}
 

/**
 * Given the offset, tries to determine if we're on an HTML close/start tag, and if so it will find the matching
 * open/close and highlight the pair.
 * 
 * @param offset
 */
private void highlightTagPair(int offset)
{
	IDocumentProvider documentProvider = getDocumentProvider();
	if (documentProvider == null)
	{
		return;
	}
	IAnnotationModel annotationModel = documentProvider.getAnnotationModel(getEditorInput());
	if (annotationModel == null)
	{
		return;
	}

	if (fTagPairOccurrences != null)
	{
		// if the offset is included by one of these two positions, we don't need to wipe and re-calculate!
		for (Position pos : fTagPairOccurrences.values())
		{
			if (pos.includes(offset))
			{
				return;
			}
		}
		// New position, wipe the existing annotations in preparation for re-calculating...
		for (Annotation a : fTagPairOccurrences.keySet())
		{
			annotationModel.removeAnnotation(a);
		}
		fTagPairOccurrences = null;
	}

	// Calculate current pair
	Map<Annotation, Position> occurrences = new HashMap<Annotation, Position>();
	IDocument document = getSourceViewer().getDocument();
	IRegion match = TagUtil.findMatchingTag(document, offset, tagPartitions);
	if (match != null)
	{
		// TODO Compare versus last positions, if they're the same don't wipe out the old ones and add new ones!
		occurrences.put(new Annotation(IHTMLConstants.TAG_PAIR_OCCURRENCE_ID, false, null),
				new Position(match.getOffset(), match.getLength()));

		try
		{
			// The current tag we're in!
			ITypedRegion partition = document.getPartition(offset);
			occurrences.put(new Annotation(IHTMLConstants.TAG_PAIR_OCCURRENCE_ID, false, null), new Position(
					partition.getOffset(), partition.getLength()));
		}
		catch (BadLocationException e)
		{
			IdeLog.logError(HTMLPlugin.getDefault(), e);
		}
		for (Map.Entry<Annotation, Position> entry : occurrences.entrySet())
		{
			annotationModel.addAnnotation(entry.getKey(), entry.getValue());
		}
		fTagPairOccurrences = occurrences;
	}
	else
	{
		// no new pair, so don't highlight anything
		fTagPairOccurrences = null;
	}
}
 

/**
 * @param annotationModel
 */
protected synchronized void removeOccurenceAnnotations(IAnnotationModel annotationModel, BaseEditor pyEdit) {
    //remove the annotations
    Map<String, Object> cache = pyEdit.cache;
    if (cache == null) {
        return;
    }

    //let other threads execute before getting the lock on the annotation model
    Thread.yield();

    Thread thread = Thread.currentThread();
    int initiaThreadlPriority = thread.getPriority();
    //before getting the lock, let's execute with normal priority, to optimize the time that we'll 
    //retain that object locked (the annotation model is used on lots of places, so, retaining the lock
    //on it on a minimum priority thread is not a good thing.
    thread.setPriority(Thread.NORM_PRIORITY);

    try {
        synchronized (getLockObject(annotationModel)) {
            List<Annotation> annotationsToRemove = getOccurrenceAnnotationsInEditor(pyEdit);

            if (annotationModel instanceof IAnnotationModelExtension) {
                //replace those 
                ((IAnnotationModelExtension) annotationModel).replaceAnnotations(
                        annotationsToRemove.toArray(new Annotation[annotationsToRemove.size()]),
                        new HashMap<Annotation, Position>());
            } else {
                Iterator<Annotation> annotationIterator = annotationsToRemove.iterator();

                while (annotationIterator.hasNext()) {
                    annotationModel.removeAnnotation(annotationIterator.next());
                }
            }
            cache.put(getOccurrenceAnnotationsCacheKey(), null);
        }
        //end remove the annotations
    } finally {
        thread.setPriority(initiaThreadlPriority);
    }
}