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/*******************************************************************************
* Copyright (c) 2003, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
/*
* Created on Aug 18, 2004
*/
package org.eclipse.jst.j2ee.internal.ui.util;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jem.util.emf.workbench.ProjectUtilities;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IDecoration;
import org.eclipse.jface.viewers.ILabelDecorator;
import org.eclipse.jface.viewers.ILightweightLabelDecorator;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jst.common.internal.annotations.controller.AnnotationsController;
import org.eclipse.jst.common.internal.annotations.controller.AnnotationsControllerHelper;
import org.eclipse.jst.common.internal.annotations.controller.AnnotationsControllerManager;
import org.eclipse.jst.j2ee.ejb.EnterpriseBean;
import org.eclipse.jst.j2ee.internal.ejb.provider.BeanClassProviderHelper;
import org.eclipse.jst.j2ee.internal.plugin.J2EEUIPlugin;
import org.eclipse.jst.j2ee.webapplication.Servlet;
import org.eclipse.swt.graphics.Image;
/**
* Add overlay for annotated objects
*/
public class AnnotationIconDecorator extends LabelProvider implements ILightweightLabelDecorator {
protected static final String ANNOTATION_IMAGE_DESC_STRING = "annotation_bean_overlay"; //$NON-NLS-1$
protected static final String ANNOTATION_DISABLED_IMAGE_DESC_STRING = "dis_annotation_bean_overlay"; //$NON-NLS-1$
private static final ImageDescriptor ANNOTATION_IMG_DESC = getImageDescriptor(ANNOTATION_IMAGE_DESC_STRING);
private static final ImageDescriptor ANNOTATION_DISABLED_IMG_DESC = getImageDescriptor(ANNOTATION_DISABLED_IMAGE_DESC_STRING);
public AnnotationIconDecorator() {
super();
}
/**
* @see org.eclipse.jface.viewers.ILightweightLabelDecorator#decorate(java.lang.Object,
* org.eclipse.jface.viewers.IDecoration)
*/
private boolean isAnnotatedSupported(EObject target) {
boolean bAnnotationSupported = false;
if (AnnotationsControllerHelper.INSTANCE.isAnnotated(target)) {
bAnnotationSupported = true;
}
return bAnnotationSupported;
}
private AnnotationsController getControllerForProject(IProject targetProject) {
AnnotationsController controller = AnnotationsControllerManager.INSTANCE.getAnnotationsController(targetProject);
return controller;
}
public void decorate(Object element, IDecoration decoration) {
EObject eObject = null;
if (element instanceof BeanClassProviderHelper) {
BeanClassProviderHelper beanClassHelper = (BeanClassProviderHelper) element;
eObject = beanClassHelper.getEjb();
} else if (element instanceof EnterpriseBean || element instanceof Servlet)
eObject = (EObject) element;
if (eObject == null)
return;
if (isAnnotatedSupported(eObject)) {
if (isAnnotationEnabled(eObject)) {
if (ANNOTATION_IMG_DESC != null)
decoration.addOverlay(ANNOTATION_IMG_DESC);
} else {
if (ANNOTATION_DISABLED_IMG_DESC != null)
decoration.addOverlay(ANNOTATION_DISABLED_IMG_DESC);
}
}
}
/**
* @param bean
* @return
*/
private boolean isAnnotationEnabled(EObject eObject) {
IFile annotatedSource = null;
/* short circuit if possible */
if (AnnotationsControllerManager.INSTANCE.isAnyAnnotationsSupported()) {
IProject targetProject = ProjectUtilities.getProject(eObject);
AnnotationsController controller = getControllerForProject(targetProject);
if (controller != null)
annotatedSource = controller.getEnabledAnnotationFile(eObject);
}
return (annotatedSource != null) ? true : false;
}
public Image decorateImage(Image image, Object element) {
return image;
}
/**
* @see ILabelDecorator#decorateText(String, Object)
*/
public String decorateText(String text, Object element) {
return text;
}
protected static ImageDescriptor getImageDescriptor(String imageFileName) {
if (imageFileName != null)
return J2EEUIPlugin.getDefault().getImageDescriptor(imageFileName);
return null;
}
}
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