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/**
* Copyright (c) 2013 Mia-Software.
*
* 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:
* Gregoire Dupe (Mia-Software) - Bug 406578 - Generic Label Provider for EMF objects
*/
package org.eclipse.papyrus.emf.facet.util.emf.ui.internal;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.papyrus.emf.facet.util.emf.core.ModelUtils;
import org.eclipse.papyrus.emf.facet.util.emf.ui.internal.utils.ImageProvider;
import org.eclipse.papyrus.emf.facet.util.emf.ui.internal.utils.ImageUtils;
import org.eclipse.swt.graphics.Image;
public class EmfLabelProvider extends LabelProvider {
@Override
public String getText(final Object element) {
String result = super.getText(element);
if (element instanceof ResourceSet) {
final ResourceSet resourceSet = (ResourceSet) element;
result = getResourceSetLabel(resourceSet);
} else if (element instanceof Resource) {
final Resource resource = (Resource) element;
result = getResourceLabel(resource);
} else if (element instanceof EObject) {
final EObject eObject = (EObject) element;
result = ModelUtils.getName(eObject);
} else if (element instanceof IAdaptable) {
final IAdaptable adaptable = (IAdaptable) element;
result = adaptAndGetResourceLabel(adaptable);
if (result == null) {
result = adaptAndGetResourceSetLabel(adaptable);
}
} else {
result = element.toString();
}
return result;
}
private static String adaptAndGetResourceLabel(final IAdaptable adaptable) {
String result = null;
final Resource resource = (Resource) adaptable
.getAdapter(Resource.class);
if (resource != null) {
result = getResourceLabel(resource);
}
return result;
}
private static String adaptAndGetResourceSetLabel(final IAdaptable adaptable) {
String result = null;
final ResourceSet resourceSet = (ResourceSet) adaptable
.getAdapter(ResourceSet.class);
if (resourceSet != null) {
result = getResourceSetLabel(resourceSet);
}
return result;
}
private static String getResourceSetLabel(final ResourceSet resourceSet) {
String result;
result = ResourceSet.class.getSimpleName() + ' '
+ resourceSet.hashCode();
return result;
}
private static String getResourceLabel(final Resource resource) {
String result;
EObject firstRoot = null;
if (resource.getContents().size() > 0) {
firstRoot = resource.getContents().get(0);
}
final StringBuffer strBuffer = new StringBuffer();
final URI uri = resource.getURI();
final String lastSegment = uri.lastSegment();
strBuffer.append(lastSegment);
if (firstRoot != null) {
strBuffer.append(" - "); //$NON-NLS-1$
final EPackage ePackage = firstRoot.eClass().getEPackage();
final String nsURI = ePackage.getName();
strBuffer.append(nsURI);
}
if (resource.isModified()) {
strBuffer.append(" *"); //$NON-NLS-1$
}
result = strBuffer.toString();
return result;
}
@Override
public Image getImage(final Object element) {
Image result = super.getImage(element);
if (element instanceof Resource) {
final Resource resource = (Resource) element;
result = getResourceImage(resource);
} else if (element instanceof IAdaptable) {
final IAdaptable adaptable = (IAdaptable) element;
result = adaptAndGetResourceImage(adaptable);
} else if (element instanceof EObject) {
final EObject eObject = (EObject) element;
result = ImageUtils.getImage(eObject);
}
return result;
}
private static Image adaptAndGetResourceImage(final IAdaptable adaptable) {
Image result = null;
final Resource resource = (Resource) adaptable
.getAdapter(Resource.class);
if (resource != null) {
result = getResourceImage(resource);
}
return result;
}
private static Image getResourceImage(final Resource resource) {
Image result = null;
if (resource.getContents().size() > 0) {
final EObject firstRoot = resource.getContents().get(0);
result = ImageUtils.getImage(firstRoot);
if (result == null) {
result = ImageProvider.DEFAULT.getImage(ImageProvider.MODEL);
}
}
return result;
}
}
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