| //------------------------------------------------------------------------------ |
| // Copyright (c) 2005, 2006 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 implementation |
| //------------------------------------------------------------------------------ |
| package org.eclipse.epf.library.edit; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.emf.common.notify.AdapterFactory; |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.emf.edit.command.CommandParameter; |
| import org.eclipse.emf.edit.provider.DelegatingWrapperItemProvider; |
| import org.eclipse.emf.edit.provider.IWrapperItemProvider; |
| import org.eclipse.epf.library.edit.util.TngUtil; |
| import org.eclipse.epf.uma.MethodElement; |
| |
| /** |
| * A subclass of DelegatingWrapperItemProvider that keeps a reference to the |
| * containing feature of the wrapped value and implements Comparable to support |
| * sorting. |
| * |
| * @author Phong Nguyen Le |
| * @since 1.0 |
| */ |
| public class FeatureValueWrapperItemProvider extends |
| DelegatingWrapperItemProvider implements Comparable { |
| |
| public FeatureValueWrapperItemProvider(EStructuralFeature feature, |
| Object value, Object owner, AdapterFactory adapterFactory) { |
| super(value, owner, feature, CommandParameter.NO_INDEX, adapterFactory); |
| } |
| |
| public EStructuralFeature getFeature() { |
| return feature; |
| } |
| |
| public List getNotifyChangedListeners() { |
| if(changeNotifier instanceof Collection) { |
| return new ArrayList((Collection) changeNotifier); |
| } |
| return Collections.EMPTY_LIST; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.emf.edit.provider.DelegatingWrapperItemProvider#createWrapper(java.lang.Object, java.lang.Object, org.eclipse.emf.common.notify.AdapterFactory) |
| */ |
| protected IWrapperItemProvider createWrapper(Object value, Object owner, AdapterFactory adapterFactory) { |
| return new FeatureValueWrapperItemProvider(null, TngUtil.unwrap(value), owner, adapterFactory); |
| } |
| |
| /** |
| * Fills the given wrappers by keeping existing, removing/dispose old, and |
| * adding new ones. |
| * |
| * @param wrappers |
| * @param feature |
| * @param values |
| * @param owner |
| * @param adapterFactory |
| */ |
| public static void fill(Collection wrappers, EStructuralFeature feature, |
| Collection values, Object owner, AdapterFactory adapterFactory) { |
| for (Iterator iter = wrappers.iterator(); iter.hasNext();) { |
| FeatureValueWrapperItemProvider wrapper = (FeatureValueWrapperItemProvider) iter |
| .next(); |
| if (!values.remove(wrapper.getValue())) { |
| iter.remove(); |
| wrapper.dispose(); |
| } |
| } |
| for (Iterator iter = values.iterator(); iter.hasNext();) { |
| wrappers.add(new FeatureValueWrapperItemProvider(feature, iter |
| .next(), owner, adapterFactory)); |
| } |
| } |
| |
| public int compareTo(Object o) { |
| Object otherValue = ((IWrapperItemProvider) o).getValue(); |
| if (!(value instanceof MethodElement) |
| || !(otherValue instanceof MethodElement)) |
| return 0; |
| return ((MethodElement) value).getName().compareTo( |
| ((MethodElement) otherValue).getName()); |
| } |
| |
| public void fireNotifyChanged(Notification notification) { |
| super.fireNotifyChanged(notification); |
| } |
| |
| } |