| /******************************************************************************* |
| * Copyright (c) 2002-2006 Innoopract Informationssysteme GmbH. |
| * 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: |
| * Innoopract Informationssysteme GmbH - initial API and implementation |
| ******************************************************************************/ |
| |
| package org.eclipse.swt.events; |
| |
| import java.util.EventListener; |
| |
| /** |
| * Classes which implement this interface provide methods that deal with the |
| * expanding and collapsing of tree branches. |
| * <p> |
| * After creating an instance of a class that implements this interface it can |
| * be added to a tree control using the <code>addTreeListener</code> method |
| * and removed using the <code>removeTreeListener</code> method. When a branch |
| * of the tree is expanded or collapsed, the appropriate method will be invoked. |
| * </p> |
| * |
| * @see TreeAdapter |
| * @see TreeEvent |
| */ |
| public interface TreeListener extends EventListener { |
| |
| /** |
| * Sent when a tree branch is collapsed. |
| * |
| * @param e an event containing information about the tree operation |
| */ |
| void treeCollapsed( TreeEvent e ); |
| |
| /** |
| * Sent when a tree branch is expanded. |
| * |
| * @param e an event containing information about the tree operation |
| */ |
| void treeExpanded( TreeEvent e ); |
| } |
