107 lines
3.4 KiB
Java
107 lines
3.4 KiB
Java
/*
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* Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* Panel is a DropTarget
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*
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*/
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import java.awt.*;
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import java.awt.datatransfer.*;
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import java.awt.dnd.*;
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import java.io.*;
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class DnDTarget extends Panel implements DropTargetListener {
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//private int dragOperation = DnDConstants.ACTION_COPY | DnDConstants.ACTION_MOVE;
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Color bgColor;
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Color htColor;
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DnDTarget(Color bgColor, Color htColor) {
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super();
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setLayout(new FlowLayout());
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this.bgColor = bgColor;
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this.htColor = htColor;
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setBackground(bgColor);
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setDropTarget(new DropTarget(this, this));
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add(new Label("drop here"));
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}
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boolean check(DropTargetDragEvent dtde)
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{
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if (dtde.getCurrentDataFlavorsAsList().contains(DataFlavor.javaFileListFlavor)) {
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dtde.acceptDrag(DnDConstants.ACTION_COPY);
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return true;
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}
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return false;
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}
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public void dragEnter(DropTargetDragEvent dtde) {
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if(check(dtde)){
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setBackground(htColor);
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repaint();
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}
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}
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public void dragOver(DropTargetDragEvent dtde) {
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check(dtde);
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}
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public void dropActionChanged(DropTargetDragEvent dtde) {
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check(dtde);
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}
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public void dragExit(DropTargetEvent e) {
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setBackground(bgColor);
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repaint();
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}
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public void dragScroll(DropTargetDragEvent e) {
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System.out.println("[Target] dragScroll");
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}
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public void drop(DropTargetDropEvent dtde) {
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System.out.println("[Target] drop");
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boolean success = false;
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dtde.acceptDrop(DnDConstants.ACTION_COPY);
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if( dtde.getCurrentDataFlavorsAsList().contains(DataFlavor.javaFileListFlavor) ){
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System.out.println("[Target] DROP OK!");
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try {
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Transferable transfer = dtde.getTransferable();
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java.util.List<File> fl = (java.util.List<File>)transfer.getTransferData(DataFlavor.javaFileListFlavor);
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for(File f : fl){
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add(new Button(f.getCanonicalPath()));
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System.out.println("[Target] drop file:" + f.getCanonicalPath());
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}
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validate();
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} catch(Exception ex) {
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ex.printStackTrace();
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}
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setBackground(bgColor);
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repaint();
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success = true;
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}
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dtde.dropComplete(success);
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}
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}
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