org.eclipse.viatra2.editor/src/org/eclipse/viatra2/treeeditor/transfer/ViatraEditorDragSourceListener.java

/*******************************************************************************
 * Copyright (c) 2004-2008 Istvan Rath and Daniel Varro
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Istvan Rath - initial API and implementation
 *******************************************************************************/

 package org.eclipse.viatra2.treeeditor.transfer;


import java.util.Iterator;


import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.dnd.DragSourceAdapter;
import org.eclipse.swt.dnd.DragSourceEvent;
import org.eclipse.viatra2.core.IModelElement;
import org.eclipse.viatra2.treeeditor.ViatraTreeEditor;



public class ViatraEditorDragSourceListener extends DragSourceAdapter {

	protected ViatraTreeEditor iVTE;
	
	
	public ViatraEditorDragSourceListener(ViatraTreeEditor vte) {
		super();
		iVTE = vte;
	}
	
	@Override
	public void dragSetData(DragSourceEvent event) {
		// System.out.println("Drag set data for type: "+event.dataType.toString());
		IStructuredSelection sel = (IStructuredSelection)iVTE.getSite().getSelectionProvider().getSelection();
		if (!sel.isEmpty()) {
			Iterator it = sel.iterator();
			ViatraTransferData[] fqns = new ViatraTransferData[sel.size()];
			int i = 0;
			while (it.hasNext()) {
				fqns[i] = new ViatraTransferData();
				fqns[i].fullyQualifiedName = ((IModelElement)it.next()).getFullyQualifiedName();
				i++;
			}
			event.data = fqns;	
		}
		
	}
	
	

}