| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.swt.events; |
| |
| |
| import org.eclipse.swt.internal.SWTEventListener; |
| |
| /** |
| * 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 SWTEventListener { |
| |
| /** |
| * Sent when a tree branch is collapsed. |
| * |
| * @param e an event containing information about the tree operation |
| */ |
| public void treeCollapsed(TreeEvent e); |
| |
| /** |
| * Sent when a tree branch is expanded. |
| * |
| * @param e an event containing information about the tree operation |
| */ |
| public void treeExpanded(TreeEvent e); |
| } |
