| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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.dnd; |
| |
| import org.eclipse.swt.widgets.*; |
| |
| /** |
| * This class provides a default drag under effect (eg. select, insert, scroll and expand) |
| * when a drag occurs over a <code>Tree</code>. |
| * |
| * <p>Classes that wish to provide their own drag under effect for a <code>Tree</code> |
| * can extend the <code>TreeDropTargetEffect</code> class and override any applicable methods |
| * in <code>TreeDropTargetEffect</code> to display their own drag under effect.</p> |
| * |
| * Subclasses that override any methods of this class must call the corresponding |
| * <code>super</code> method to get the default drag under effect implementation. |
| * |
| * <p>The feedback value is either one of the FEEDBACK constants defined in |
| * class <code>DND</code> which is applicable to instances of this class, |
| * or it must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>DND</code> effect constants. |
| * </p> |
| * <p> |
| * <dl> |
| * <dt><b>Feedback:</b></dt> |
| * <dd>FEEDBACK_SELECT, FEEDBACK_INSERT_BEFORE, FEEDBACK_INSERT_AFTER, FEEDBACK_EXPAND, FEEDBACK_SCROLL</dd> |
| * </dl> |
| * </p><p> |
| * Note: Only one of the styles FEEDBACK_SELECT, FEEDBACK_INSERT_BEFORE or |
| * FEEDBACK_INSERT_AFTER may be specified. |
| * </p> |
| * |
| * @see DropTargetAdapter |
| * @see DropTargetEvent |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * |
| * @since 3.3 |
| */ |
| public class TreeDropTargetEffect extends DropTargetEffect { |
| /** |
| * Creates a new <code>TreeDropTargetEffect</code> to handle the drag under effect on the specified |
| * <code>Tree</code>. |
| * |
| * @param tree the <code>Tree</code> over which the user positions the cursor to drop the data |
| */ |
| public TreeDropTargetEffect(Tree tree) { |
| super(tree); |
| } |
| } |