TransferableNode.java

/**

TrakEM2 plugin for ImageJ(C).
Copyright (C) 2005-2009 Albert Cardona and Rodney Douglas.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation (http://www.gnu.org/licenses/gpl.txt )

This program 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 for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. 

You may contact Albert Cardona at acardona at ini.phys.ethz.ch
Institute of Neuroinformatics, University of Zurich / ETH, Switzerland.
**/

package ini.trakem2.tree;


import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.util.Arrays;

import javax.swing.tree.DefaultMutableTreeNode;

/** Adapted from <a href="http://forum.java.sun.com/thread.jspa?threadID=296255&start=0&tstart=0">freely available code by DeuDeu</a>. */
public class TransferableNode implements Transferable {
	
	public static final DataFlavor NODE_FLAVOR = new DataFlavor(DataFlavor.javaJVMLocalObjectMimeType, "Node");
	
	private DefaultMutableTreeNode node;

	private DataFlavor[] flavors = { NODE_FLAVOR };
 
	public TransferableNode(DefaultMutableTreeNode nd) {
		node = nd;
	}
 
	public synchronized Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException {
		if (flavor == NODE_FLAVOR) {
			return node;
		} else {
			throw new UnsupportedFlavorException(flavor);   
		}       
	}
 
	public DataFlavor[] getTransferDataFlavors() {
		return flavors;
	}
 
	public boolean isDataFlavorSupported(DataFlavor flavor) {
		return Arrays.asList(flavors).contains(flavor);
	}
}