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