private void right() {
        TextGrid.DataGridCel cel = grid.getCel(currentRow + rowOffset,
                currentCol + colOffset + 1);
        if (cel == null) {
            return;
        }

        if (cel.getBufferIndex() != -1) {
            if (currentCol < (numberOfCols - 1)) {
                currentCol++;
            } else {
                scrollRight();
            }
        }
    }