1 /* 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.awt.dnd.peer; 27 28 import java.awt.Cursor; 29 import java.awt.Image; 30 import java.awt.Point; 31 import java.awt.dnd.DragSourceContext; 32 import java.awt.dnd.InvalidDnDOperationException; 33 34 35 /** 36 * <p> 37 * This interface is supplied by the underlying window system platform to 38 * expose the behaviors of the Drag and Drop system to an originator of 39 * the same 40 * </p> 41 * 42 * @since 1.2 43 * 44 */ 45 46 public interface DragSourceContextPeer { 47 48 /** 49 * start a drag 50 * @param dsc the DragSourceContext 51 * @param c the cursor 52 * @param dragImage the image to be dragged 53 * @param imageOffset the offset 54 */ 55 56 void startDrag(DragSourceContext dsc, Cursor c, Image dragImage, Point imageOffset) throws InvalidDnDOperationException; 57 58 /** 59 * return the current drag cursor 60 * @return the current drag cursor 61 */ 62 63 Cursor getCursor(); 64 65 /** 66 * set the current drag cursor 67 * @param c the cursor 68 */ 69 70 void setCursor(Cursor c) throws InvalidDnDOperationException; 71 72 /** 73 * notify the peer that the Transferables DataFlavors have changed 74 */ 75 76 void transferablesFlavorsChanged(); 77 }