DroppableLocationsList.java Source File

00001 package edu.ksu.cis.bandera.pdgslicer.dependency;
00002 
00003 import java.awt.*;
00004 import java.awt.dnd.*;
00005 import java.awt.datatransfer.*;
00006 import javax.swing.*;
00007 import java.io.*;
00008 import java.util.*;
00009 import java.util.List;
00010 import edu.ksu.cis.bandera.annotation.*;
00011 import edu.ksu.cis.bandera.pdgslicer.datastructure.SlicePoint;
00012 /**
00013  * Insert the type's description here.
00014  * Creation date: (00-11-20 10:01:36)
00015  * @author: 
00016  */
00017 public class DroppableLocationsList extends DroppableList {
00018 /**
00019  * DroppableControlStatementList constructor comment.
00020  */
00021 public DroppableLocationsList() {
00022     super();
00023 }
00024 public void dragEnter(DropTargetDragEvent dropTargetDragEvent) {
00025     Transferable tr = DraggableTree.currentDraggingTreeNode;
00026     if (tr == null) {
00027         dropTargetDragEvent.rejectDrag();
00028         return;
00029     }
00030     Object userObject = null;
00031     try {
00032         userObject = tr.getTransferData(TransferableTreeNode.DEFAULT_MUTABLE_TREENODE_FLAVOR);
00033     } catch (IOException io) {
00034         io.printStackTrace();
00035         dropTargetDragEvent.rejectDrag();
00036     } catch (UnsupportedFlavorException ufe) {
00037         ufe.printStackTrace();
00038         dropTargetDragEvent.rejectDrag();
00039     }
00040     if (userObject instanceof FieldDeclarationAnnotation)
00041         dropTargetDragEvent.rejectDrag();
00042     else
00043         dropTargetDragEvent.acceptDrag(DnDConstants.ACTION_COPY_OR_MOVE);
00044 }
00045 public void drop(DropTargetDropEvent dropTargetDropEvent) {
00046     try {
00047         Transferable tr = DraggableTree.currentDraggingTreeNode;
00048         if (tr.isDataFlavorSupported(TransferableTreeNode.DEFAULT_MUTABLE_TREENODE_FLAVOR)) {
00049             dropTargetDropEvent.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
00050             Object userObject = tr.getTransferData(TransferableTreeNode.DEFAULT_MUTABLE_TREENODE_FLAVOR);
00051 
00052             SlicePoint sp = criterionViewer.calculateSlicePoint(userObject);
00053             if (sp != null) {
00054                 boolean isStatementNode = false;
00055                 criterionViewer.addLocationToCriterion(sp, (Annotation) userObject);
00056             }
00057             dropTargetDropEvent.getDropTargetContext().dropComplete(true);
00058         } else {
00059             System.err.println("Rejected");
00060             dropTargetDropEvent.rejectDrop();
00061         }
00062     } catch (IOException io) {
00063         io.printStackTrace();
00064         dropTargetDropEvent.rejectDrop();
00065     } catch (UnsupportedFlavorException ufe) {
00066         ufe.printStackTrace();
00067         dropTargetDropEvent.rejectDrop();
00068     }
00069 }
00070 }