code: private AnchorLink getAbsoluteAnchorLinkWithCell(int dragOffsetX) {
          AnchorLink absoluteAnchorLink;
  
          TableModel tableModel = table.getModel();
          if ((0 <= modelRowIndex) && (modelRowIndex < tableModel.getRowCount()) && (0 <= modelColumnIndex) &&
                  (modelColumnIndex < tableModel.getColumnCount())) {
              int viewRowIndex = table.convertRowIndexToView(modelRowIndex);
              int viewColumnIndex = table.convertColumnIndexToView(modelColumnIndex);
  
              Rectangle cellBounds = table.getCellRect(viewRowIndex, viewColumnIndex, true);
              Anchor relativeCellAnchor = anchorLinkWithCell.getMasterAnchor();
              Anchor absoluteCellAnchor = new Anchor(0.0f, cellBounds.x + dragOffsetX + (int) (cellBounds.width *
                      relativeCellAnchor.getRelativeX()) + relativeCellAnchor.getOffsetX(), 0.0f, cellBounds.y + (int)
                      (cellBounds.height * relativeCellAnchor.getRelativeY()) + relativeCellAnchor.getOffsetY());
              absoluteAnchorLink = new AnchorLink(absoluteCellAnchor, anchorLinkWithCell.getSlaveAnchor());
          } else {
              // Maybe the table has been emptied? or the row has been filtered out? or invalid row/column index?
              LOGGER.debug("Cell at model row and/or column indices is not visible: (" + modelRowIndex + "," +
                      modelColumnIndex +
                      ") for table dimensions (" + tableModel.getRowCount() + "," + tableModel.getColumnCount() + ")");
  
              // Decoration will not be shown
              absoluteAnchorLink = null;
          }
  
          return absoluteAnchorLink;
      }
docs: Retrieves the absolute anchor link to attach the decoration to the cell.
  
  @param dragOffsetX Dragged distance in case the column is being dragged, 0 otherwise.
  
  @return Absolute anchor link to attach the decoration to the cell.