public void dragGestureRecognized(DragGestureEvent event) {
    if (folderPanel.getMainFrame().getNoEventsMode()) return;

    FileTable fileTable = folderPanel.getFileTable();
    FileTableModel tableModel = fileTable.getFileTableModel();

    // Return (do not initiate drag) if mouse button2 or button3 was used
    if ((event.getTriggerEvent().getModifiers()
            & (InputEvent.BUTTON2_MASK | InputEvent.BUTTON3_MASK))
        != 0) return;

    // Do not use that to retrieve the current selected file as it is inaccurate: the selection
    // could have changed since the
    // the mouse was clicked.
    //        AbstractFile selectedFile = fileTable.getSelectedFile(false);
    //        // Return if selected file is null (could happen if '..' is selected)
    //        if(selectedFile==null)
    //            return;

    // Find out which row was clicked
    int clickedRow = fileTable.rowAtPoint(event.getDragOrigin());
    // Return (do not initiate drag) if the selected file is the parent folder '..'
    if (clickedRow == -1 || fileTable.isParentFolder(clickedRow)) return;

    // Retrieve the file corresponding to the clicked row
    AbstractFile selectedFile = tableModel.getFileAtRow(clickedRow);

    // Find out which files are to be dragged, based on the selected file and currenlty marked
    // files.
    // If there are some files marked, drag marked files only if the selected file is one of the
    // marked files.
    // In any other case, only drag the selected file.
    FileSet markedFiles;
    FileSet draggedFiles;
    if (tableModel.getNbMarkedFiles() > 0
        && (markedFiles = fileTable.getSelectedFiles()).contains(selectedFile)) {
      draggedFiles = markedFiles;
    } else {
      draggedFiles = new FileSet(fileTable.getCurrentFolder(), selectedFile);
    }

    // Set initial DnDContext information
    DnDContext.setDragInitiatedByMucommander(true);
    DnDContext.setDragInitiator(folderPanel);
    DnDContext.setDragGestureModifiersEx(event.getTriggerEvent().getModifiersEx());

    // Start dragging
    DragSource.getDefaultDragSource()
        .startDrag(event, null, new TransferableFileSet(draggedFiles), this);
    //        DragSource.getDefaultDragSource().startDrag(createCustomDragGestureEvent(event,
    // DnDConstants.ACTION_MOVE), null, new TransferableFileSet(draggedFiles), this);
  }
 public void dragDropEnd(DragSourceDropEvent event) {
   // Reset DnDContext information
   DnDContext.setDragInitiatedByMucommander(false);
   DnDContext.setDragInitiator(null);
   DnDContext.setDragGestureModifiersEx(0);
 }
 public void dropActionChanged(DragSourceDragEvent event) {
   // Update drag gesture modifiers
   DnDContext.setDragGestureModifiersEx(event.getGestureModifiersEx());
 }