/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.libraries.designtime.swing;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
public class GenericTransferable implements Transferable
{
public static final DataFlavor ELEMENT_FLAVOR = new DataFlavor(DataFlavor.javaSerializedObjectMimeType +
"; class=" + SerializedObjectContainer.class.getName(), // NON-NLS
"Generic Local Transfer"); // NON-NLS
private SerializedObjectContainer value;
public GenericTransferable(final Object value)
{
if (value == null)
{
throw new NullPointerException();
}
this.value = new SerializedObjectContainer(new Object[]{value});
}
public GenericTransferable(final Object[] data)
{
if (data == null)
{
throw new NullPointerException();
}
this.value = new SerializedObjectContainer(data);
}
/**
* Returns an array of DataFlavor objects indicating the flavors the data can be provided in. The array should be
* ordered according to preference for providing the data (from most richly descriptive to least descriptive).
*
* @return an array of data flavors in which this data can be transferred
*/
public DataFlavor[] getTransferDataFlavors()
{
return new DataFlavor[]{ELEMENT_FLAVOR};
}
/**
* Returns whether or not the specified data flavor is supported for this object.
*
* @param flavor the requested flavor for the data
* @return boolean indicating whether or not the data flavor is supported
*/
public boolean isDataFlavorSupported(final DataFlavor flavor)
{
return ELEMENT_FLAVOR.equals(flavor);
}
/**
* Returns an object which represents the data to be transferred. The class of the object returned is defined by the
* representation class of the flavor.
*
* @param flavor the requested flavor for the data
* @throws IOException if the data is no longer available in the requested flavor.
* @throws UnsupportedFlavorException if the requested data flavor is not supported.
* @see DataFlavor#getRepresentationClass
*/
public Object getTransferData(final DataFlavor flavor) throws UnsupportedFlavorException, IOException
{
if (isDataFlavorSupported(flavor) == false)
{
throw new UnsupportedFlavorException(flavor);
}
return value.getData();
}
}