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628 adamjking 1
/*
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 * @(#)SimpleTransferHandler.java   beta8   2006/04/23
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 *
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 * Copyright (C) 2008    Adam King (adamjking@optusnet.com.au)
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 *
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 * This application is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This application is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this application; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
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package org.midibox.utils.gui;
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import java.awt.datatransfer.DataFlavor;
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import java.awt.datatransfer.Transferable;
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import javax.swing.JComponent;
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import javax.swing.TransferHandler;
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public class SimpleTransferHandler extends TransferHandler {
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    protected DataFlavor[] supportedDataFlavors;
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    protected boolean justImported = false;
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    protected boolean justExported = false;
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    protected boolean dropOnSelf = false;
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    public int getSourceActions(JComponent c) {
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        return COPY;
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    }
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    public boolean canImport(JComponent c, DataFlavor[] flavors) {
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        try {
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            if (justExported && !dropOnSelf) {
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                return false;
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            } else {
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                for (int f = 0; f < flavors.length; f++) {
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                    if (hasFlavor(supportedDataFlavors, flavors[f])) {
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                        return true;
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                    }
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                }
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                return false;
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            }
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        } catch (Exception e) {
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            return false;
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        }
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    }
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    public void setDropOnSelf(boolean dropOnSelf) {
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        this.dropOnSelf = dropOnSelf;
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    }
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    protected boolean hasFlavor(DataFlavor[] flavors, DataFlavor flavor) {
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        for (int i = 0; i < flavors.length; i++) {
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            if (flavor.equals(flavors[i])) {
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                return true;
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            }
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        }
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        return false;
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    }
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    protected void exportDone(JComponent c, Transferable data, int action) {
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        justExported = false;
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    }
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}