public void showTooltip(int row, @NotNull VcsLogColumn<?> column) {
    if (column != Commit.INSTANCE) return;
    GraphCommitCellController controller = (GraphCommitCellController)Objects.requireNonNull(getController(column));
    controller.showTooltip(row);
  }
public void showTooltip(int row, @NotNull VcsLogColumn<?> column)