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DraggableHierTree.java

package edu.ksu.cis.bandera.pdgslicer.dependency;

import javax.swing.*;
import javax.swing.tree.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
//import ca.mcgill.sable.soot.*;
import edu.ksu.cis.bandera.annotation.*;
import edu.ksu.cis.bandera.pdgslicer.datastructure.*;
/**
 * Insert the type's description here.
 * Creation date: (00-11-16 14:21:20)
 * @author: 
 */
public class DraggableHierTree extends DraggableTree {
/**
 * HierTree constructor comment.
 */
public DraggableHierTree() {
    super();
}
/**
 * HierTree constructor comment.
 * @param model javax.swing.tree.TreeModel
 */
public DraggableHierTree(javax.swing.tree.TreeModel model) {
    //super(model);
}
// DragGestureListener

public void dragGestureRecognized(DragGestureEvent dragGestureEvent) {
    TreePath path = getSelectionPath();
    if (path == null) {
        // Nothing selected, nothing to drag
        currentDraggingTreeNode = null;
        draggingTreeNode = false;
        System.out.println("Nothing selected - beep");
        getToolkit().beep();
    } else {
        DefaultMutableTreeNode selection = (DefaultMutableTreeNode) path.getLastPathComponent();
        Object userObject = selection.getUserObject();
        if (userObject instanceof FieldDeclarationAnnotation) {
            FieldDeclarationAnnotation fda = (FieldDeclarationAnnotation) userObject;
            SliceVariable sf = new SliceField(fda.getSootField().getDeclaringClass(), fda.getSootField());
            currentDraggingTreeNode = new TransferableSliceVariable(sf);
            draggingTreeNode = true;
            dragSource.startDrag(dragGestureEvent, DragSource.DefaultCopyDrop, currentDraggingTreeNode, DraggableHierTree.this.dragSourceListener);
        } else {
            System.out.println("Select wrong node - beep");
            currentDraggingTreeNode = null;
            draggingTreeNode = false;
            getToolkit().beep();
        }
    }
}
}

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