///******************************************************************************* // * 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.jface.util; // //import org.eclipse.swt.dnd.DragSourceListener; //import org.eclipse.swt.dnd.Transfer; // ///** // * A <code>TransferDragSourceListener</code> is a <code>DragSourceListener</code> // * that can handle one type of SWT {@link Transfer}. // * The purpose of a <code>TransferDragSourceListener</code> is to: // * <ul> // * <li>Determine enablement for a drag operation. A <code>TransferDragSourceListener</code> // * will not be used in a drag operation if the <code>DragSourceEvent#doit</code> field // * is set to false in <code>DragSourceListener#dragStart(DragSourceEvent)</code>. // * <li>Set data for a single type of drag and <code>Transfer</code> type. // * </ul> // * <p> // * A <code>DelegatingDragAdapter</code> allows these functions to be implemented // * separately for unrelated types of drags. <code>DelegatingDragAdapter</code> then // * combines the function of each <code>TransferDragSourceListener</code>, while // * allowing them to be implemented as if they were the only <code>DragSourceListener</code>. // * </p> // * @since 1.0 // */ //public interface TransferDragSourceListener extends DragSourceListener { // /** // * Returns the <code>Transfer</code> type that this listener can provide data for. // * // * @return the <code>Transfer</code> associated with this listener // */ // Transfer getTransfer(); //}