1/* 2 * Copyright (c) 2009, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24import java.awt.dnd.*; 25import java.awt.*; 26import java.awt.datatransfer.DataFlavor; 27import java.awt.datatransfer.UnsupportedFlavorException; 28import java.io.File; 29import java.io.IOException; 30import java.util.ArrayList; 31import java.util.Collection; 32import java.util.Iterator; 33import java.util.Arrays; 34 35public class TargetPanel extends Panel implements DropTargetListener{ 36 37 private java.util.List <File> content = new ArrayList<File>(); 38 39 //private final CustomDropTargetListener dropTargetListener = new CustomDropTargetListener(); 40 41 private Frame frame; 42 43 public TargetPanel (Frame frame) 44 { 45 this.frame = frame; 46 setBackground(Color.DARK_GRAY); 47 setPreferredSize(new Dimension(200, 200)); 48 setDropTarget(new DropTarget(this, this)); 49 } 50 51 public void dragEnter(DropTargetDragEvent dtde) { 52 if (dtde.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) { 53 dtde.acceptDrag(DnDConstants.ACTION_COPY_OR_MOVE); 54 } 55 } 56 57 public void dragOver(DropTargetDragEvent dtde) { 58 if (dtde.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) { 59 dtde.acceptDrag(DnDConstants.ACTION_COPY_OR_MOVE); 60 } 61 } 62 63 public void dropActionChanged(DropTargetDragEvent dtde) { 64 if (dtde.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) { 65 dtde.acceptDrag(DnDConstants.ACTION_COPY_OR_MOVE); 66 } 67 } 68 69 public void dragExit(DropTargetEvent dte) { 70 71 } 72 73 public void drop(DropTargetDropEvent dtde) { 74 dtde.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE); 75 if (dtde.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) { 76 try { 77 content = (java.util.List)dtde.getTransferable().getTransferData(DataFlavor.javaFileListFlavor); 78 repaint(); 79 } catch (UnsupportedFlavorException e) { 80 e.printStackTrace(); 81 } catch (IOException e) { 82 e.printStackTrace(); 83 } 84 dtde.dropComplete(true); 85 86 87 88 boolean listsAreEqual = true; 89 90 for (int i = 0; i < content.size(); i++) { 91 if(!FileListTransferable.files[i].getName().equals(content.get(i).getName())) { 92 listsAreEqual = false; 93 } 94 } 95 96 if (listsAreEqual) { 97 System.err.println(InterprocessMessages.EXECUTION_IS_SUCCESSFULL); 98 System.exit(0); 99 } 100 } 101 dtde.rejectDrop(); 102 System.err.println(InterprocessMessages.FILES_ON_TARGET_ARE_CORRUPTED); 103 System.exit(1); 104 } 105 106 public void paint(Graphics g) { 107 g.setColor(Color.YELLOW); 108 int i = 0; 109 for (Iterator <File> iterator = content.iterator(); iterator.hasNext();i++) { 110 g.drawString(iterator.next().getName(), 5, g.getFontMetrics().getAscent()*i+20); 111 } 112 113 } 114 115} 116