core/bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/reconcile/TemporaryAnnotation.java - sourceediting/webtools.sourceediting - Gitiles

 /*******************************************************************************
  * Copyright (c) 2001, 2015 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     Jens Lukowski/Innoopract - initial renaming/restructuring
  *
  *******************************************************************************/
 package org.eclipse.wst.sse.ui.internal.reconcile;

 import java.util.HashMap;
 import java.util.Map;

 import org.eclipse.core.runtime.Assert;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.jface.resource.ImageRegistry;
 import org.eclipse.jface.text.Position;
 import org.eclipse.jface.text.quickassist.IQuickAssistProcessor;
 import org.eclipse.jface.text.quickassist.IQuickFixableAnnotation;
 import org.eclipse.jface.text.reconciler.IReconcileResult;
 import org.eclipse.jface.text.source.Annotation;
 import org.eclipse.jface.text.source.IAnnotationAccessExtension;
 import org.eclipse.jface.text.source.IAnnotationPresentation;
 import org.eclipse.jface.text.source.ImageUtilities;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.GC;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.widgets.Canvas;
 import org.eclipse.ui.ISharedImages;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.editors.text.EditorsUI;
 import org.eclipse.ui.ide.IDE;
 import org.eclipse.ui.internal.editors.text.EditorsPlugin;
 import org.eclipse.ui.texteditor.AnnotationPreference;
 import org.eclipse.ui.texteditor.AnnotationPreferenceLookup;
 import org.eclipse.ui.texteditor.IAnnotationImageProvider;
 import org.eclipse.wst.sse.ui.internal.ITemporaryAnnotation;


 /**
  * An implementation of ITemporaryAnnotation @
  * @author pavery
  */
 public class TemporaryAnnotation extends Annotation implements ITemporaryAnnotation, IReconcileResult, IAnnotationPresentation, IQuickFixableAnnotation {
 	// remember to change these if it changes in the extension point
 	// may need a different home for them in the future, but they're here for
 	// now
 	public final static String ANNOT_ERROR = "org.eclipse.wst.sse.ui.temp.error"; //$NON-NLS-1$
 	public final static String ANNOT_INFO = "org.eclipse.wst.sse.ui.temp.info"; //$NON-NLS-1$

 	// pa_TODO what should the ID be for this?
 	public final static String ANNOT_UNKNOWN = Annotation.TYPE_UNKNOWN;
 	public final static String ANNOT_WARNING = "org.eclipse.wst.sse.ui.temp.warning"; //$NON-NLS-1$

     // copied from CompilationUnitDocumentProvider.ProblemAnnotation
     //XXX: To be fully correct these constants should be non-static

     private static final int INFO_LAYER;

     private static final int WARNING_LAYER;

     private static final int ERROR_LAYER;
 	/**
 	 * Constant for the error system image.
 	 */
 	public static final String ERROR_SYSTEM_IMAGE = "error"; //$NON-NLS-1$
 	/**
 	 * Constant for the warning system image.
 	 */
 	public static final String WARNING_SYSTEM_IMAGE = "warning"; //$NON-NLS-1$
 	/**
 	 * Constant for the info system image.
 	 */
 	public static final String INFO_SYSTEM_IMAGE = "info"; //$NON-NLS-1$
 	/**
 	 * Constant for the task system image.
 	 */
 	public static final String TASK_SYSTEM_IMAGE = "task"; //$NON-NLS-1$
 	/**
 	 * Constant for the bookmark system image.
 	 */
 	public static final String BOOKMARK_SYSTEM_IMAGE = "bookmark"; //$NON-NLS-1$

 	/**
 	 * The mapping between external and internal symbolic system image names.
 	 */
 	private final static Map<String, String> MAPPING;

     static {
         AnnotationPreferenceLookup lookup= EditorsUI.getAnnotationPreferenceLookup();
         INFO_LAYER= computeLayer("org.eclipse.wst.sse.ui.temp.info", lookup); //$NON-NLS-1$
         WARNING_LAYER= computeLayer("org.eclipse.wst.sse.ui.temp.warning", lookup); //$NON-NLS-1$
         ERROR_LAYER= computeLayer("org.eclipse.wst.sse.ui.temp.error", lookup); //$NON-NLS-1$
     }

 	static {
 		MAPPING = new HashMap<>();
 		MAPPING.put(ERROR_SYSTEM_IMAGE, ISharedImages.IMG_OBJS_ERROR_TSK);
 		MAPPING.put(WARNING_SYSTEM_IMAGE, ISharedImages.IMG_OBJS_WARN_TSK);
 		MAPPING.put(INFO_SYSTEM_IMAGE, ISharedImages.IMG_OBJS_INFO_TSK);
 		MAPPING.put(TASK_SYSTEM_IMAGE, IDE.SharedImages.IMG_OBJS_TASK_TSK);
 		MAPPING.put(BOOKMARK_SYSTEM_IMAGE, IDE.SharedImages.IMG_OBJS_BKMRK_TSK);
 	}

     private static int computeLayer(String annotationType, AnnotationPreferenceLookup lookup) {
         Annotation annotation= new Annotation(annotationType, false, null);
         AnnotationPreference preference= lookup.getAnnotationPreference(annotation);
         if (preference != null)
             return preference.getPresentationLayer() + 1;
         else
             return IAnnotationAccessExtension.DEFAULT_LAYER + 1;
     }


 	private Object fAdditionalFixInfo = null;

 	private Object fKey = null;
 	private Position fPosition = null;
 	private Map fAttributes = null;
 	private boolean fIsQuickFixable = false;
 	private boolean fIsQuickFixableStateSet = false;

 	private int fProblemID;

     private int fLayer = DEFAULT_LAYER;

 	private Image fImage = null;

 	public TemporaryAnnotation(Position p, String type, String message, ReconcileAnnotationKey key) {
 		super();
 		fPosition = p;
 		setType(type);
 		fKey = key;
 		setText(message);
         initLayer();
 	}

 	public TemporaryAnnotation(Position p, String type, String message, ReconcileAnnotationKey key, int problemId) {
 		super();
 		fPosition = p;
 		fKey = key;
 		setType(type);
 		setText(message);
 		fProblemID = problemId;
         initLayer();
 	}

     private void initLayer() {

         String type = getType();
         if(type.equals(ANNOT_ERROR)) {
             fLayer = ERROR_LAYER;
         }
         else if(type.equals(ANNOT_WARNING)) {
             fLayer = WARNING_LAYER;
         }
         else if(type.equals(ANNOT_INFO)) {
             fLayer = INFO_LAYER;
         }
     }

     /*
 	 * (non-Javadoc)
 	 *
 	 * @see java.lang.Object#equals(java.lang.Object)
 	 */
 	public boolean equals(Object obj) {
 		// this check doesn't take into consideration that annotation
 		// positions that change from a text edit before it
 		// we should be checking if the annotation is still on the same line,
 		// and the distance from the start of the line is the same
 		if (obj instanceof TemporaryAnnotation) {

 			TemporaryAnnotation ta = (TemporaryAnnotation) obj;

             boolean samePosition = ta.getPosition().equals(this.getPosition());
             boolean sameText = false;

             if(ta.getText() != null && this.getText() != null && ta.getText().equals(this.getText()))
                 sameText = true;
             else if(ta.getText( )== null && this.getText() == null)
                 sameText = true;

 			return  sameText && samePosition;
 		}
 		return super.equals(obj);
 	}

 	/**
 	 * Additional info required to fix this problem.
 	 *
 	 * @return an Object that contains additional info on how to fix this
 	 *         problem, or null if there is none
 	 */
 	public Object getAdditionalFixInfo() {
 		return fAdditionalFixInfo;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.wst.sse.ui.ITemporaryAnnotation#getDescription()
 	 */
 	public String getDescription() {
 		return getText();
 	}

 	public Object getKey() {
 		return fKey;
 	}

 	public Position getPosition() {
 		return fPosition;
 	}

 	/**
 	 * @return Returns the problemID.
 	 */
 	public int getProblemID() {
 		return fProblemID;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.jface.text.source.Annotation#isPersistent()
 	 */
 	public boolean isPersistent() {
 		return false;
 	}

 	/**
 	 * Sets additional information useful to fixing this problem.
 	 *
 	 * @param an
 	 *            Object that contains additional info on how to fix this
 	 *            problem
 	 */
 	public void setAdditionalFixInfo(Object info) {
 		fAdditionalFixInfo = info;
 		setQuickFixable(true);
 	}

     public int getLayer() {
         return fLayer;
     }

     /*
      * @see Annotation#paint
      */
 	public void paint(GC gc, Canvas canvas, Rectangle r) {
 		if (fImage == null || fImage.isDisposed())
 			fImage = getImage();
 		if (fImage != null)
 			ImageUtilities.drawImage(fImage, gc, canvas, r, SWT.CENTER, SWT.TOP);
 	}

 	public String toString() {
 		return "" + fPosition.getOffset() + ':' + fPosition.getLength() + ": " + getText(); //$NON-NLS-1$ //$NON-NLS-2$
 	}

 	public Map getAttributes() {
 		return fAttributes;
 	}

 	public void setAttributes(Map attributes) {
 		fAttributes = attributes;
 	}

 	public boolean isQuickFixable() {
 		return fIsQuickFixable;
 	}

 	public void setQuickFixable(boolean state) {
 		fIsQuickFixable = state;
 		fIsQuickFixableStateSet = true;
 	}

 	public boolean isQuickFixableStateSet() {
 		return fIsQuickFixableStateSet;
 	}

 	/**
 	 * Returns the annotation preference for the given annotation.
 	 */
 	private AnnotationPreference getAnnotationPreference() {
 		AnnotationPreferenceLookup lookup = EditorsUI.getAnnotationPreferenceLookup();
 		return lookup != null ? lookup.getAnnotationPreference(this) : null;
 	}

 	private boolean hasQuickFix() {
 		Object object = getAdditionalFixInfo();
 		if (object instanceof IQuickAssistProcessor) {
 			return ((IQuickAssistProcessor) object).canFix(this);
 		}
 		return false;
 	}

 	private Image getImage() {// Copied from org.eclipse.ui.texteditor.DefaultMarkerAnnotationAccess
 		AnnotationPreference preference = getAnnotationPreference();
 		ImageRegistry registry = EditorsPlugin.getDefault().getImageRegistry();

 		IAnnotationImageProvider annotationImageProvider = preference.getAnnotationImageProvider();
 		if (annotationImageProvider != null) {

 			Image image = annotationImageProvider.getManagedImage(this);
 			if (image != null)
 				return image;

 			String id = annotationImageProvider.getImageDescriptorId(this);
 			if (id != null) {
 				image = registry.get(id);
 				if (image == null) {
 					ImageDescriptor descriptor = annotationImageProvider.getImageDescriptor(id);
 					registry.put(id, descriptor);
 					image = registry.get(id);
 				}
 				return image;
 			}
 		}
 		String annotationType = getType();
 		if (annotationType == null)
 			return null;

 		if (hasQuickFix()) {
 			ImageDescriptor quickFixImageDesc = preference.getQuickFixImageDescriptor();
 			if (quickFixImageDesc != null) {
 				Image image = registry.get(quickFixImageDesc.toString());
 				if (image == null) {
 					registry.put(quickFixImageDesc.toString(), quickFixImageDesc);
 					image = registry.get(quickFixImageDesc.toString());
 				}
 				if (image != null)
 					return image;
 			}
 		}

 		Image image = registry.get(annotationType);
 		if (image == null) {
 			ImageDescriptor descriptor = preference.getImageDescriptor();
 			if (descriptor != null) {
 				registry.put(annotationType, descriptor);
 				image = registry.get(annotationType);
 			} else {
 				String symbolicImageName = preference.getSymbolicImageName();
 				if (symbolicImageName != null) {
 					String key = getSharedImageName(preference.getSymbolicImageName());
 					if (key != null) {
 						ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
 						image = sharedImages.getImage(key);
 					}
 				}
 			}
 		}

 		if (image == null) { // fail safe
 			String key = null;
 			switch (annotationType) {
 			case ANNOT_ERROR:
 				key = getSharedImageName(ERROR_SYSTEM_IMAGE);
 				break;
 			case ANNOT_WARNING:
 				key = getSharedImageName(WARNING_SYSTEM_IMAGE);
 				break;
 			case ANNOT_INFO:
 				key = getSharedImageName(INFO_SYSTEM_IMAGE);
 				break;
 			}
 			if (key != null) {
 				ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
 				image = sharedImages.getImage(key);
 			}
 		}
 		return image;
 	}

 	public static String getSharedImageName(String symbolicImageName) {
 		Assert.isLegal(symbolicImageName != null);
 		String sharedImageName = MAPPING.get(symbolicImageName);
 		Assert.isLegal(sharedImageName != null);
 		return sharedImageName;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2001, 2015 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	* Jens Lukowski/Innoopract - initial renaming/restructuring
	*
	*******************************************************************************/
	package org.eclipse.wst.sse.ui.internal.reconcile;

	import java.util.HashMap;
	import java.util.Map;

	import org.eclipse.core.runtime.Assert;
	import org.eclipse.jface.resource.ImageDescriptor;
	import org.eclipse.jface.resource.ImageRegistry;
	import org.eclipse.jface.text.Position;
	import org.eclipse.jface.text.quickassist.IQuickAssistProcessor;
	import org.eclipse.jface.text.quickassist.IQuickFixableAnnotation;
	import org.eclipse.jface.text.reconciler.IReconcileResult;
	import org.eclipse.jface.text.source.Annotation;
	import org.eclipse.jface.text.source.IAnnotationAccessExtension;
	import org.eclipse.jface.text.source.IAnnotationPresentation;
	import org.eclipse.jface.text.source.ImageUtilities;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.graphics.GC;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.graphics.Rectangle;
	import org.eclipse.swt.widgets.Canvas;
	import org.eclipse.ui.ISharedImages;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.editors.text.EditorsUI;
	import org.eclipse.ui.ide.IDE;
	import org.eclipse.ui.internal.editors.text.EditorsPlugin;
	import org.eclipse.ui.texteditor.AnnotationPreference;
	import org.eclipse.ui.texteditor.AnnotationPreferenceLookup;
	import org.eclipse.ui.texteditor.IAnnotationImageProvider;
	import org.eclipse.wst.sse.ui.internal.ITemporaryAnnotation;


	/**
	* An implementation of ITemporaryAnnotation @
	* @author pavery
	*/
	public class TemporaryAnnotation extends Annotation implements ITemporaryAnnotation, IReconcileResult, IAnnotationPresentation, IQuickFixableAnnotation {
	// remember to change these if it changes in the extension point
	// may need a different home for them in the future, but they're here for
	// now
	public final static String ANNOT_ERROR = "org.eclipse.wst.sse.ui.temp.error"; //$NON-NLS-1$
	public final static String ANNOT_INFO = "org.eclipse.wst.sse.ui.temp.info"; //$NON-NLS-1$

	// pa_TODO what should the ID be for this?
	public final static String ANNOT_UNKNOWN = Annotation.TYPE_UNKNOWN;
	public final static String ANNOT_WARNING = "org.eclipse.wst.sse.ui.temp.warning"; //$NON-NLS-1$

	// copied from CompilationUnitDocumentProvider.ProblemAnnotation
	//XXX: To be fully correct these constants should be non-static

	private static final int INFO_LAYER;

	private static final int WARNING_LAYER;

	private static final int ERROR_LAYER;
	/**
	* Constant for the error system image.
	*/
	public static final String ERROR_SYSTEM_IMAGE = "error"; //$NON-NLS-1$
	/**
	* Constant for the warning system image.
	*/
	public static final String WARNING_SYSTEM_IMAGE = "warning"; //$NON-NLS-1$
	/**
	* Constant for the info system image.
	*/
	public static final String INFO_SYSTEM_IMAGE = "info"; //$NON-NLS-1$
	/**
	* Constant for the task system image.
	*/
	public static final String TASK_SYSTEM_IMAGE = "task"; //$NON-NLS-1$
	/**
	* Constant for the bookmark system image.
	*/
	public static final String BOOKMARK_SYSTEM_IMAGE = "bookmark"; //$NON-NLS-1$

	/**
	* The mapping between external and internal symbolic system image names.
	*/
	private final static Map<String, String> MAPPING;

	static {
	AnnotationPreferenceLookup lookup= EditorsUI.getAnnotationPreferenceLookup();
	INFO_LAYER= computeLayer("org.eclipse.wst.sse.ui.temp.info", lookup); //$NON-NLS-1$
	WARNING_LAYER= computeLayer("org.eclipse.wst.sse.ui.temp.warning", lookup); //$NON-NLS-1$
	ERROR_LAYER= computeLayer("org.eclipse.wst.sse.ui.temp.error", lookup); //$NON-NLS-1$
	}

	static {
	MAPPING = new HashMap<>();
	MAPPING.put(ERROR_SYSTEM_IMAGE, ISharedImages.IMG_OBJS_ERROR_TSK);
	MAPPING.put(WARNING_SYSTEM_IMAGE, ISharedImages.IMG_OBJS_WARN_TSK);
	MAPPING.put(INFO_SYSTEM_IMAGE, ISharedImages.IMG_OBJS_INFO_TSK);
	MAPPING.put(TASK_SYSTEM_IMAGE, IDE.SharedImages.IMG_OBJS_TASK_TSK);
	MAPPING.put(BOOKMARK_SYSTEM_IMAGE, IDE.SharedImages.IMG_OBJS_BKMRK_TSK);
	}

	private static int computeLayer(String annotationType, AnnotationPreferenceLookup lookup) {
	Annotation annotation= new Annotation(annotationType, false, null);
	AnnotationPreference preference= lookup.getAnnotationPreference(annotation);
	if (preference != null)
	return preference.getPresentationLayer() + 1;
	else
	return IAnnotationAccessExtension.DEFAULT_LAYER + 1;
	}


	private Object fAdditionalFixInfo = null;

	private Object fKey = null;
	private Position fPosition = null;
	private Map fAttributes = null;
	private boolean fIsQuickFixable = false;
	private boolean fIsQuickFixableStateSet = false;

	private int fProblemID;

	private int fLayer = DEFAULT_LAYER;

	private Image fImage = null;

	public TemporaryAnnotation(Position p, String type, String message, ReconcileAnnotationKey key) {
	super();
	fPosition = p;
	setType(type);
	fKey = key;
	setText(message);
	initLayer();
	}

	public TemporaryAnnotation(Position p, String type, String message, ReconcileAnnotationKey key, int problemId) {
	super();
	fPosition = p;
	fKey = key;
	setType(type);
	setText(message);
	fProblemID = problemId;
	initLayer();
	}

	private void initLayer() {

	String type = getType();
	if(type.equals(ANNOT_ERROR)) {
	fLayer = ERROR_LAYER;
	}
	else if(type.equals(ANNOT_WARNING)) {
	fLayer = WARNING_LAYER;
	}
	else if(type.equals(ANNOT_INFO)) {
	fLayer = INFO_LAYER;
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see java.lang.Object#equals(java.lang.Object)
	*/
	public boolean equals(Object obj) {
	// this check doesn't take into consideration that annotation
	// positions that change from a text edit before it
	// we should be checking if the annotation is still on the same line,
	// and the distance from the start of the line is the same
	if (obj instanceof TemporaryAnnotation) {

	TemporaryAnnotation ta = (TemporaryAnnotation) obj;

	boolean samePosition = ta.getPosition().equals(this.getPosition());
	boolean sameText = false;

	if(ta.getText() != null && this.getText() != null && ta.getText().equals(this.getText()))
	sameText = true;
	else if(ta.getText( )== null && this.getText() == null)
	sameText = true;

	return sameText && samePosition;
	}
	return super.equals(obj);
	}

	/**
	* Additional info required to fix this problem.
	*
	* @return an Object that contains additional info on how to fix this
	* problem, or null if there is none
	*/
	public Object getAdditionalFixInfo() {
	return fAdditionalFixInfo;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.wst.sse.ui.ITemporaryAnnotation#getDescription()
	*/
	public String getDescription() {
	return getText();
	}

	public Object getKey() {
	return fKey;
	}

	public Position getPosition() {
	return fPosition;
	}

	/**
	* @return Returns the problemID.
	*/
	public int getProblemID() {
	return fProblemID;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.text.source.Annotation#isPersistent()
	*/
	public boolean isPersistent() {
	return false;
	}

	/**
	* Sets additional information useful to fixing this problem.
	*
	* @param an
	* Object that contains additional info on how to fix this
	* problem
	*/
	public void setAdditionalFixInfo(Object info) {
	fAdditionalFixInfo = info;
	setQuickFixable(true);
	}

	public int getLayer() {
	return fLayer;
	}

	/*
	* @see Annotation#paint
	*/
	public void paint(GC gc, Canvas canvas, Rectangle r) {
	if (fImage == null \|\| fImage.isDisposed())
	fImage = getImage();
	if (fImage != null)
	ImageUtilities.drawImage(fImage, gc, canvas, r, SWT.CENTER, SWT.TOP);
	}

	public String toString() {
	return "" + fPosition.getOffset() + ':' + fPosition.getLength() + ": " + getText(); //$NON-NLS-1$ //$NON-NLS-2$
	}

	public Map getAttributes() {
	return fAttributes;
	}

	public void setAttributes(Map attributes) {
	fAttributes = attributes;
	}

	public boolean isQuickFixable() {
	return fIsQuickFixable;
	}

	public void setQuickFixable(boolean state) {
	fIsQuickFixable = state;
	fIsQuickFixableStateSet = true;
	}

	public boolean isQuickFixableStateSet() {
	return fIsQuickFixableStateSet;
	}

	/**
	* Returns the annotation preference for the given annotation.
	*/
	private AnnotationPreference getAnnotationPreference() {
	AnnotationPreferenceLookup lookup = EditorsUI.getAnnotationPreferenceLookup();
	return lookup != null ? lookup.getAnnotationPreference(this) : null;
	}

	private boolean hasQuickFix() {
	Object object = getAdditionalFixInfo();
	if (object instanceof IQuickAssistProcessor) {
	return ((IQuickAssistProcessor) object).canFix(this);
	}
	return false;
	}

	private Image getImage() {// Copied from org.eclipse.ui.texteditor.DefaultMarkerAnnotationAccess
	AnnotationPreference preference = getAnnotationPreference();
	ImageRegistry registry = EditorsPlugin.getDefault().getImageRegistry();

	IAnnotationImageProvider annotationImageProvider = preference.getAnnotationImageProvider();
	if (annotationImageProvider != null) {

	Image image = annotationImageProvider.getManagedImage(this);
	if (image != null)
	return image;

	String id = annotationImageProvider.getImageDescriptorId(this);
	if (id != null) {
	image = registry.get(id);
	if (image == null) {
	ImageDescriptor descriptor = annotationImageProvider.getImageDescriptor(id);
	registry.put(id, descriptor);
	image = registry.get(id);
	}
	return image;
	}
	}
	String annotationType = getType();
	if (annotationType == null)
	return null;

	if (hasQuickFix()) {
	ImageDescriptor quickFixImageDesc = preference.getQuickFixImageDescriptor();
	if (quickFixImageDesc != null) {
	Image image = registry.get(quickFixImageDesc.toString());
	if (image == null) {
	registry.put(quickFixImageDesc.toString(), quickFixImageDesc);
	image = registry.get(quickFixImageDesc.toString());
	}
	if (image != null)
	return image;
	}
	}

	Image image = registry.get(annotationType);
	if (image == null) {
	ImageDescriptor descriptor = preference.getImageDescriptor();
	if (descriptor != null) {
	registry.put(annotationType, descriptor);
	image = registry.get(annotationType);
	} else {
	String symbolicImageName = preference.getSymbolicImageName();
	if (symbolicImageName != null) {
	String key = getSharedImageName(preference.getSymbolicImageName());
	if (key != null) {
	ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
	image = sharedImages.getImage(key);
	}
	}
	}
	}

	if (image == null) { // fail safe
	String key = null;
	switch (annotationType) {
	case ANNOT_ERROR:
	key = getSharedImageName(ERROR_SYSTEM_IMAGE);
	break;
	case ANNOT_WARNING:
	key = getSharedImageName(WARNING_SYSTEM_IMAGE);
	break;
	case ANNOT_INFO:
	key = getSharedImageName(INFO_SYSTEM_IMAGE);
	break;
	}
	if (key != null) {
	ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
	image = sharedImages.getImage(key);
	}
	}
	return image;
	}

	public static String getSharedImageName(String symbolicImageName) {
	Assert.isLegal(symbolicImageName != null);
	String sharedImageName = MAPPING.get(symbolicImageName);
	Assert.isLegal(sharedImageName != null);
	return sharedImageName;
	}
	}