transferablenode.java

用Swing实现的CHM制作工具

package g2w.app.gchm.gui;

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

import javax.swing.tree.DefaultMutableTreeNode;

/** 
 * The wrap of transferalbe data.
 * @author GreatGhoul
 * @version 001 2009-3-2 10:25:11
 * @since GCHMCreator 1.1
 */
public class TransferableNode implements Transferable {
	private DefaultMutableTreeNode node;
	
	public static final DataFlavor FLAVOR = 
		new DataFlavor(TransferableNode.class, "node");
	DataFlavor[] FLAVORS = {FLAVOR};
	
	public TransferableNode(DefaultMutableTreeNode node) {
		this.node = node;
	}

	public Object getTransferData(DataFlavor flavor)
			throws UnsupportedFlavorException {
		if (!isDataFlavorSupported(flavor))
			throw new UnsupportedFlavorException(flavor);
		return node;
	}

	public DataFlavor[] getTransferDataFlavors() {
		return FLAVORS;
	}

	public boolean isDataFlavorSupported(DataFlavor flavor) {
		for (int i = 0; i < FLAVORS.length; i++) {
			if (flavor.equals(FLAVORS[i]))
				return true;
		}
		return false;
	}
}