| /******************************************************************************* |
| * Copyright (c) 2015 RCP Vision (http://www.rcp-vision.com) 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: |
| * Vincenzo Caselli - Initial contribution and API |
| * |
| *******************************************************************************/ |
| 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); |
| } |