Mercurial > projects > dwt2
comparison org.eclipse.jface/src/org/eclipse/jface/util/TransferDragSourceListener.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
| author | Frank Benoit <benoit@tionex.de> |
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| date | Sat, 14 Mar 2009 18:23:29 +0100 |
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| 11:43904fec5dca | 12:bc29606a740c |
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| 1 /******************************************************************************* | |
| 2 * Copyright (c) 2000, 2005 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module org.eclipse.jface.util.TransferDragSourceListener; | |
| 14 | |
| 15 import org.eclipse.swt.dnd.DragSourceListener; | |
| 16 import org.eclipse.swt.dnd.Transfer; | |
| 17 | |
| 18 import java.lang.all; | |
| 19 import java.util.Set; | |
| 20 | |
| 21 /** | |
| 22 * A <code>TransferDragSourceListener</code> is a <code>DragSourceListener</code> | |
| 23 * that can handle one type of SWT {@link Transfer}. | |
| 24 * The purpose of a <code>TransferDragSourceListener</code> is to: | |
| 25 * <ul> | |
| 26 * <li>Determine enablement for a drag operation. A <code>TransferDragSourceListener</code> | |
| 27 * will not be used in a drag operation if the <code>DragSourceEvent#doit</code> field | |
| 28 * is set to false in <code>DragSourceListener#dragStart(DragSourceEvent)</code>. | |
| 29 * <li>Set data for a single type of drag and <code>Transfer</code> type. | |
| 30 * </ul> | |
| 31 * <p> | |
| 32 * A <code>DelegatingDragAdapter</code> allows these functions to be implemented | |
| 33 * separately for unrelated types of drags. <code>DelegatingDragAdapter</code> then | |
| 34 * combines the function of each <code>TransferDragSourceListener</code>, while | |
| 35 * allowing them to be implemented as if they were the only <code>DragSourceListener</code>. | |
| 36 * </p> | |
| 37 * @since 3.0 | |
| 38 */ | |
| 39 public interface TransferDragSourceListener : DragSourceListener { | |
| 40 /** | |
| 41 * Returns the <code>Transfer</code> type that this listener can provide data for. | |
| 42 * | |
| 43 * @return the <code>Transfer</code> associated with this listener | |
| 44 */ | |
| 45 Transfer getTransfer(); | |
| 46 } |