| /******************************************************************************* |
| * Copyright (c) 2005, 2012 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 |
| *******************************************************************************/ |
| package org.eclipse.bpel.ui.details.providers; |
| |
| import org.eclipse.bpel.ui.adapters.ILabeledElement; |
| import org.eclipse.bpel.ui.adapters.INamedElement; |
| import org.eclipse.bpel.ui.util.BPELUtil; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.jface.viewers.LabelProvider; |
| import org.eclipse.swt.graphics.Image; |
| |
| |
| /** |
| * Label provider for the details area. Mainly used for updating |
| * the details title. |
| * |
| * This implementation only keeps track of changes to one model |
| * object only since it is currently not necessary for the details area |
| * to keep track of more than one. |
| */ |
| public class DetailsLabelProvider extends LabelProvider { |
| /** |
| * This is the model object we keep track of changes. This |
| * object is the last one passed as a parameter to getText(). |
| */ |
| protected Object currentModelObject; |
| // protected MultiObjectAdapter adapter; |
| |
| // TODO: this is a temp hack |
| private Image currentImage; |
| |
| public DetailsLabelProvider() { |
| super(); |
| // adapter = new MultiObjectAdapter() { |
| // public void notify(Notification n) { |
| // if (isDisplayNameAffected(n)) { |
| // // creates an empty event - the event itself is not important only the notification |
| // LabelProviderChangedEvent event = new LabelProviderChangedEvent(DetailsLabelProvider.this); |
| // fireLabelProviderChanged(event); |
| // } |
| // } |
| // }; |
| } |
| |
| @Override |
| public Image getImage(Object model) { |
| ILabeledElement element = BPELUtil.adapt(model, ILabeledElement.class); |
| if (currentImage != null) { |
| //currentImage.dispose(); |
| } |
| currentImage = (element != null) ? element.getSmallImage(model) : null; |
| return currentImage; |
| } |
| |
| /** |
| * Parameter model has to be an EObject. |
| */ |
| @Override |
| public String getText(Object model) { |
| if (!(model instanceof EObject)) { |
| return null; |
| } |
| hookListener((EObject) model); |
| ILabeledElement element = BPELUtil.adapt(model, ILabeledElement.class); |
| if (element != null) return element.getLabel(model); |
| |
| INamedElement namedElement = BPELUtil.adapt(model, INamedElement.class); |
| return (namedElement != null) ? namedElement.getName(model) : null; |
| } |
| |
| /** |
| * Listen to changes to the model object's name or label. |
| */ |
| protected void hookListener(EObject model) { |
| if (model == currentModelObject) { |
| return; |
| } |
| currentModelObject = model; |
| } |
| } |