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/***********************************************************************
* Copyright (c) 2008, 2009 Anyware Technologies, Obeo
*
* 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:
* David Sciamma (Anyware Technologies) - initial API and implementation
*
**********************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.outline;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.papyrus.infra.core.editorsfactory.IPageIconsRegistry;
import org.eclipse.papyrus.infra.core.editorsfactory.PageIconsRegistry;
import org.eclipse.papyrus.infra.core.services.ServiceException;
import org.eclipse.papyrus.infra.core.utils.EditorUtils;
import org.eclipse.swt.graphics.Image;
/**
* Compute the label of the elements contained by the current diagram.
*
* @author <a href="mailto:david.sciamma@anyware-tech.com">David Sciamma</a>
* @author <a href="mailto:jacques.lescot@anyware-tech.com">Jacques Lescot</a>
* @author <a href="mailto:jerome.benois@obeo.fr">Jerome Benois</a>
*/
public class DiagramOrientedLabelProvider implements ILabelProvider {
private AdapterFactoryLabelProvider myAdapterFactoryLabelProvider;
/** Registry to store editor factories */
private IPageIconsRegistry editorRegistry;
public DiagramOrientedLabelProvider(AdapterFactoryLabelProvider adapterFactoryLabelProvider) {
this.myAdapterFactoryLabelProvider = adapterFactoryLabelProvider;
}
/**
* {@inheritDoc}
*/
public Image getImage(Object element) {
if(element instanceof Diagram) {
return getEditorRegistry().getEditorIcon(element);
}
return myAdapterFactoryLabelProvider.getImage(element);
}
/**
* {@inheritDoc}
*/
public String getText(Object element) {
if(element instanceof Diagram) {
Diagram diagram = (Diagram)element;
return myAdapterFactoryLabelProvider.getText(diagram.getElement());
}
return myAdapterFactoryLabelProvider.getText(element);
}
/**
* {@inheritDoc}
*/
public void addListener(ILabelProviderListener listener) {
myAdapterFactoryLabelProvider.addListener(listener);
}
/**
* {@inheritDoc}
*/
public void dispose() {
myAdapterFactoryLabelProvider.dispose();
}
/**
* {@inheritDoc}
*/
public boolean isLabelProperty(Object element, String property) {
return myAdapterFactoryLabelProvider.isLabelProperty(element, property);
}
/**
* {@inheritDoc}
*/
public void removeListener(ILabelProviderListener listener) {
myAdapterFactoryLabelProvider.removeListener(listener);
}
/**
* Get the EditorRegistry used to create editor instances. This default implementation return
* the singleton eINSTANCE. This method can be subclassed to return another registry.
*
* @return the singleton eINSTANCE of editor registry
* @throws ServiceException
*/
protected IPageIconsRegistry getEditorRegistry() {
if(editorRegistry == null) {
editorRegistry = createEditorRegistry();
}
return editorRegistry;
}
/**
* Return the EditorRegistry for nested editor descriptors. Subclass should implements this
* method in order to return the registry associated to the extension point namespace.
*
* @return the EditorRegistry for nested editor descriptors
* @throws ServiceException
*/
protected IPageIconsRegistry createEditorRegistry() {
try {
return EditorUtils.getServiceRegistry().getService(IPageIconsRegistry.class);
} catch (ServiceException e) {
// Not found, return an empty one which return null for each request.
return new PageIconsRegistry();
}
}
}
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