[reportlab-users] Spreadsheet Table

[Tomasz Świderski]

> If I understand your approach correctly, you want to compute the heights for the

> whole table once at the beginning.

> In the case of paragraph table cells, this means that you compute all paragraphs

> heights (which _may_ increase memory consumption significantly, but I'm not sure)

> and that each paragraph is considered twice:

> * first time for the height computation,

> * second time for the actual "rendering".

>

> So, please do also compare the performance of tables where each cell contains 

> a *non-trivial* paragraph and the table has many rows.

>

> Note that using paragraphs for the cell values is a common use-case,

> even if your table contains only query results from a database.

> That's because a paragraph gives you automatic line-breaking and other features

> you often need.

>   

I will compare performance with paragraphs as cell values. But I see no 
reason why computing all row heights once at the beginning should lower 
performance. Number of computations remain the same - it's just done in 
different order. And computing everything once results in simpler, 
easier to read code.

When I will have some free time, I will send performance test with 
paragraphs.

Tomasz Świderski