[pygtk] floating point precision

[Tim Evans]

On 2011-03-08 18:49, Saeed Rasooli wrote:
> But the cleaner way is using:
>
>       gtk.TreeViewColumn.set_cell_data_func
>
> http://www.moeraki.com/pygtktutorial/pygtk2reference/class-gtktreeviewcolumn.html#method-gtktreeviewcolumn--set-cell-data-func
>

I normally avoid cell data funcs because of how slow they are for large 
treeviews. If you only have a small amount of data they work fine, but 
for a large amount the constant calls back into python for every single 
detail makes it so slow as to be useless.

On 2011-03-08 17:26, Johann Schatzer wrote:
 > how could the string column then be sortable by number?

Use gtk.TreeViewColumn.set_sort_column_id to point the sorting at the 
float column in the model. This is where the separation between view 
columns and model columns comes in handy.

-- 
Tim Evans