/*
* Copyright (C) 2014 by Array Systems Computing Inc. http://www.array.ca
*
* 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; either version 3 of the License, or (at your option)
* any later version.
* 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, see http://www.gnu.org/licenses/
*/
package org.esa.snap.graphbuilder.rcp.utils;
import com.bc.ceres.swing.selection.AbstractSelection;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* File list selection
*/
public class FileListSelection extends AbstractSelection implements Transferable {
private static final DataFlavor[] flavors = {
DataFlavor.stringFlavor,
DataFlavor.javaFileListFlavor
};
private final List<File> fileList = new ArrayList<>();
public FileListSelection(File[] fileList) {
this.fileList.addAll(Arrays.asList(fileList));
}
@Override
public File getSelectedValue() {
return fileList.get(0);
}
@Override
public File[] getSelectedValues() {
return fileList.toArray(new File[fileList.size()]);
}
/**
* Returns an array of flavors in which this <code>Transferable</code>
* can provide the data. <code>DataFlavor.stringFlavor</code>
*
* @return an array of flavors
*/
public DataFlavor[] getTransferDataFlavors() {
return flavors;
}
public boolean isDataFlavorSupported(final DataFlavor flavor) {
for (DataFlavor f : flavors) {
if (flavor.equals(f)) {
return true;
}
}
return false;
}
/**
* Returns the <code>Transferable</code>'s data in the requested <code>DataFlavor</code> if possible.
*
* @param flavor the requested flavor for the data
* @return the data in the requested flavor, as outlined above
* @throws java.awt.datatransfer.UnsupportedFlavorException if the requested data flavor not supported
*/
public Object getTransferData(final DataFlavor flavor)
throws UnsupportedFlavorException {
if (flavor.equals(DataFlavor.javaFileListFlavor)) {
return fileList;
} else if (flavor.equals(DataFlavor.stringFlavor)) {
return null;
} else {
throw new UnsupportedFlavorException(flavor);
}
}
}