/* 
 
Copyright 2006 Eric Hakenholz

This file is part of C.a.R. software.

    C.a.R. is a 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, version 3 of the License.

    C.a.R. 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, see <http://www.gnu.org/licenses/>.
 
 */
 
 
 package eric.macros;

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

import javax.swing.tree.TreePath;

/**
 * This represents a TreePath (a node in a JTree) that can be transferred
 * between a drag source and a drop target.
 */
class CTransferableTreePath implements Transferable {
	// The type of DnD object being dragged...
	public static final DataFlavor TREEPATH_FLAVOR = new DataFlavor(
			DataFlavor.javaJVMLocalObjectMimeType, "TreePath");

	private final TreePath _path;

	private final DataFlavor[] _flavors = { TREEPATH_FLAVOR };

	/**
	 * Constructs a transferrable tree path object for the specified path.
	 */
	public CTransferableTreePath(final TreePath path) {
		_path = path;
	}

	// Transferable interface methods...
	public DataFlavor[] getTransferDataFlavors() {
		return _flavors;
	}

	public boolean isDataFlavorSupported(final DataFlavor flavor) {
		return java.util.Arrays.asList(_flavors).contains(flavor);
	}

	public synchronized Object getTransferData(final DataFlavor flavor)
	throws UnsupportedFlavorException {

		if (flavor.isMimeTypeEqual(TREEPATH_FLAVOR.getMimeType())) // DataFlavor.javaJVMLocalObjectMimeType))
			return _path;
		else
			throw new UnsupportedFlavorException(flavor);
	}

}