[reportlab-users] Truncate table cell content to end with ellipsis

[Yves Forkl]

Using Platypus (RLTK 2.3), I would like to make sure that the contents 
of a table cell of a known fixed width do only consist of no more than a 
single line that is truncated if too long. An ellipsis ("...", or rather 
U+2026) should be substituted to the missing part. The contents are 
passed as a Paragraph so I can use HTML formatting, its font size and 
family are known of course.

I already have a kind of hack which involves a function that 
incrementally reduces the content to be inserted (using the stringWidth 
method on a dummy canvas) until it fits, based on some heuristics.

But I would much prefer a clean and neat solution. I know about 
KeepInFrame and its truncate method, but looking at the unit test in 
test_platypus_pleaseturnover.py I can't figure out how to proceed, 
especially to push the ellipsis in.

Any hints?

   Yves