private int getPrevRow() {
    if (myTable.getSelectedRows().length == 0) return -1;
    int row = myTable.getSelectionModel().getLeadSelectionIndex();

    while (true) {
      if (row <= 0) return -1;
      row--;
      DirDiffElementImpl element = myModel.getElementAt(row);
      if (element == null) return -1;
      if (!element.isSeparator()) break;
    }

    return row;
  }
private int getPrevRow()