GadgetDragListener.java

package com.gorillalogic.monkeyconsole.componentview.ui;

import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.dnd.DragSourceEvent;
import org.eclipse.swt.dnd.DragSourceListener;
import org.eclipse.swt.dnd.TextTransfer;
//import org.eclipse.swt.widgets.TableColumn;


public class GadgetDragListener implements DragSourceListener {

        private TableViewer viewer;
        //private TableColumn contentColumn;
        private TreeViewer viewer1;
        
        

        

        public GadgetDragListener(TreeViewer viewer) {
                // TODO Auto-generated constructor stub
                this.viewer1 = viewer;
        }



        @Override
        public void dragFinished(DragSourceEvent event) {
                // TODO Auto-generated method stub

        }

        @Override
        public void dragSetData(DragSourceEvent event) {
                // TODO Auto-generated method stub

                /*
                 * if (TextTransfer.getInstance().isSupportedType(event.dataType)){
                 * event.data = "DRAGGED_TEXT";
                 * 
                 * if (event.data == null) { // no data to copy, indicate failure in
                 * event.detail event.detail = DND.DROP_NONE; return; }
                 * 
                 * 
                 * }
                 */
                
                
                
                IStructuredSelection selection = (IStructuredSelection) viewer1.getSelection();
                
                if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
                        //event.data = viewer.getData(null);
                        
                        event.data = (String) selection.getFirstElement();
                }
        }

        @Override
        public void dragStart(DragSourceEvent event) {
                // TODO Auto-generated method stub
//              if (viewer.getInput().length() == 0) {
//                      event.doit = false;
//              }
        }

}