| /*********************************************************************** |
| * Copyright (c) 2007, 2008 INRIA 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: |
| * INRIA - initial API and implementation |
| * |
| * $Id: PackageNameColumnSelectionListener.java,v 1.3 2008/05/12 21:51:57 lbigearde Exp $ |
| **********************************************************************/ |
| |
| package org.eclipse.emf.ecoretools.registration.view; |
| |
| import org.eclipse.emf.ecoretools.registration.internal.PackageNameComparator; |
| import org.eclipse.emf.ecoretools.registration.internal.RegisteredPackageComparator; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.jface.viewers.ViewerComparator; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| |
| /** |
| * Listener for the selection in the Package name column |
| */ |
| public class PackageNameColumnSelectionListener implements SelectionListener { |
| |
| private TreeViewer viewer = null; |
| |
| /** |
| * Constructor |
| * |
| * @param viewer |
| */ |
| public PackageNameColumnSelectionListener(TreeViewer viewer) { |
| this.viewer = viewer; |
| } |
| |
| /** |
| * @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent) |
| */ |
| public void widgetSelected(SelectionEvent e) { |
| ViewerComparator newComparator = null; |
| ViewerComparator comparator = viewer.getComparator(); |
| |
| if (comparator instanceof PackageNameComparator) { |
| if (((PackageNameComparator) comparator).getOrder() == RegisteredPackageComparator.ASCENDING_ORDER) |
| newComparator = new PackageNameComparator(RegisteredPackageComparator.DESCENDING_ORDER); |
| else if (((PackageNameComparator) comparator).getOrder() == RegisteredPackageComparator.DESCENDING_ORDER) |
| newComparator = new PackageNameComparator(RegisteredPackageComparator.ASCENDING_ORDER); |
| } else |
| newComparator = new PackageNameComparator(RegisteredPackageComparator.ASCENDING_ORDER); |
| |
| if (newComparator != null) |
| viewer.setComparator(newComparator); |
| } |
| |
| /** |
| * @see org.eclipse.swt.events.SelectionListener#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent) |
| */ |
| public void widgetDefaultSelected(SelectionEvent e) { |
| // nothing to do |
| |
| } |
| |
| } |