/**
* Copyright 2010 The University of North Carolina at Chapel Hill
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package unc.lib.cdr.workbench.capture;
import org.eclipse.jface.util.LocalSelectionTransfer;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.dnd.DragSourceEvent;
import org.eclipse.swt.dnd.DragSourceListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author Gregory Jansen
*
*/
public class OriginalsDragSourceListener implements DragSourceListener {
private static final Logger log = LoggerFactory.getLogger(OriginalsDragSourceListener.class);
private final TreeViewer viewer;
public OriginalsDragSourceListener(TreeViewer viewer) {
this.viewer = viewer;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.dnd.DragSourceListener#dragStart(org.eclipse.swt.dnd. DragSourceEvent)
*/
@Override
public void dragStart(DragSourceEvent event) {
log.debug("drag started");
ISelection selection = viewer.getSelection();
LocalSelectionTransfer.getTransfer().setSelection(selection);
LocalSelectionTransfer.getTransfer().setSelectionSetTime(event.time & 0xFFFFFFFFL);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.dnd.DragSourceListener#dragSetData(org.eclipse.swt.dnd .DragSourceEvent)
*/
@Override
public void dragSetData(DragSourceEvent event) {
log.debug("drag set data called");
event.data = LocalSelectionTransfer.getTransfer().getSelection();
// if(ResourceTransfer.getInstance().isSupportedType(event.dataType)) {
// event.data = selection.toArray();
// }
// if(LocalSelectionTransfer.getTransfer().isSupportedType(event.dataType)) {
// log.debug("local selection data set");
// LocalSelectionTransfer.getTransfer().setSelection(selection);
// LocalSelectionTransfer.getTransfer().setSelectionSetTime(event.time & 0xFFFF);
// }
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.dnd.DragSourceListener#dragFinished(org.eclipse.swt.dnd .DragSourceEvent)
*/
@Override
public void dragFinished(DragSourceEvent event) {
log.debug("drag finished");
LocalSelectionTransfer.getTransfer().setSelection(null);
LocalSelectionTransfer.getTransfer().setSelectionSetTime(0);
}
}