GNU Classpath (0.20) | |
Frames | No Frames |
1: /* DropTargetDragEvent.java -- 2: Copyright (C) 2002, 2004 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package java.awt.dnd; 40: 41: import java.awt.Point; 42: import java.awt.datatransfer.DataFlavor; 43: import java.util.List; 44: 45: /** 46: * @since 1.2 47: */ 48: public class DropTargetDragEvent extends DropTargetEvent 49: { 50: /** 51: * Compatible with 1.2+ 52: */ 53: private static final long serialVersionUID = -8422265619058953682L; 54: 55: private final int dropAction; 56: private final int srcActions; 57: private final Point location; 58: 59: /** 60: * Initializes a <code>DropTargetDragEvent</code>. 61: * 62: * @exception IllegalArgumentException If dropAction is not one of DnDConstants, 63: * srcActions is not a bitwise mask of DnDConstants, or dtc is null. 64: * @exception NullPointerException If location is null. 65: */ 66: public DropTargetDragEvent (DropTargetContext context, Point location, 67: int dropAction, int srcActions) 68: { 69: super (context); 70: 71: if (location == null) 72: throw new NullPointerException (); 73: 74: if (context == null) 75: throw new IllegalArgumentException (); 76: 77: if (dropAction != DnDConstants.ACTION_NONE 78: && dropAction != DnDConstants.ACTION_COPY 79: && dropAction != DnDConstants.ACTION_MOVE 80: && dropAction != DnDConstants.ACTION_COPY_OR_MOVE 81: && dropAction != DnDConstants.ACTION_LINK 82: && dropAction != DnDConstants.ACTION_REFERENCE) 83: throw new IllegalArgumentException (); 84: 85: int srcActionsMask = DnDConstants.ACTION_NONE 86: | DnDConstants.ACTION_COPY 87: | DnDConstants.ACTION_MOVE 88: | DnDConstants.ACTION_COPY_OR_MOVE 89: | DnDConstants.ACTION_LINK 90: | DnDConstants.ACTION_REFERENCE; 91: 92: if (~(srcActions ^ srcActionsMask) != 0) 93: throw new IllegalArgumentException (); 94: 95: this.dropAction = dropAction; 96: this.srcActions = srcActions; 97: this.location = location; 98: } 99: 100: public void acceptDrag (int dragOperation) 101: { 102: context.acceptDrag (dragOperation); 103: } 104: 105: public DataFlavor[] getCurrentDataFlavors () 106: { 107: return context.getCurrentDataFlavors (); 108: } 109: 110: public List getCurrentDataFlavorsAsList () 111: { 112: return context.getCurrentDataFlavorsAsList (); 113: } 114: 115: public int getDropAction() 116: { 117: return 0; 118: //return dropAction & ((DropTargetContext) source).getTargetActions(); 119: } 120: 121: public Point getLocation () 122: { 123: return location; 124: } 125: 126: public int getSourceActions () 127: { 128: return srcActions; 129: } 130: 131: public boolean isDataFlavorSupported (DataFlavor df) 132: { 133: return context.isDataFlavorSupported (df); 134: } 135: 136: public void rejectDrag () 137: { 138: context.rejectDrag (); 139: } 140: } // class DropTargetDragEvent
GNU Classpath (0.20) |