| /******************************************************************************* |
| * 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.jface.viewers.ContentViewer; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerSorter; |
| |
| /** |
| * A sorter which alphabetically sorts model objects based on the labels provided for them |
| * by the viewer's installed label provider. |
| */ |
| public class ModelViewerSorter extends ViewerSorter { |
| |
| // clients should call getInstance() |
| protected ModelViewerSorter() { } |
| protected static ModelViewerSorter instance = new ModelViewerSorter(); |
| |
| public static ModelViewerSorter getInstance() { return instance; } |
| |
| @Override |
| public int compare(Viewer viewer, Object e1, Object e2) { |
| if (e1 == null && e2 != null) return -1; |
| if (e1 != null && e2 == null) return +1; |
| ILabelProvider labelProvider = (ILabelProvider)((ContentViewer)viewer).getLabelProvider(); |
| String property1 = labelProvider.getText(e1); |
| String property2 = labelProvider.getText(e2); |
| return collator.compare(property1, property2); |
| } |
| } |