[PyQt] QTableWidget Data Paste Time
clowersb at yahoo.com
Thu Jul 31 16:23:00 BST 2008
Thanks for the information. I was hoping to avoid the model-view as it is pretty daunting task especially for someone new to programming. I don't suppose that anyone out there may be willing to share and example of how to paste data from the clipboard into a QTableView?
--- On Thu, 7/31/08, David Douard <david.douard at logilab.fr> wrote:
From: David Douard <david.douard at logilab.fr>
Subject: Re: [PyQt] QTableWidget Data Paste Time
To: pyqt at riverbankcomputing.com
Date: Thursday, July 31, 2008, 3:24 AM
On Wed, Jul 30, 2008 at 02:22:38PM -0700, Glenn Linderman wrote:
> On approximately 7/30/2008 2:10 PM, came the following characters from
> the keyboard of B Clowers:
>> I'm interested in incorporating a QTableWidget into one of my
>> applications and would like to give it the functionality to cut, copy,
>> and paste a user selection. So far I've implemented the copy and
>> paste actions to a functional level. However, I often deal with very
>> large arrays (e.g. 250000) rows, as such when pasting an array of that
>> size it seems to take on the order of 8-10 seconds to actually set the
>> data in the table. I've attached a small example script that has
>> copy and paste functionality and was hoping some of the more
>> experienced programmers out there could take a look and comment on
>> whether it is possible to commit data to the QTableWidget in a more
>> efficient manner. So far I've only been able to use the setItem()
>> function iteratively. There doesn't seem to be a setItems() (i.e.
>> setting a large list of items at one time). Thanks for your help.
>> -ps I didn't attach a text file with 250000 rows as it is about
>> compressed, though if anyone is interested let me know and I'll
>> it on.
> So, I'm a PyQt newbie, so I can't help, but I can add that
> noticed that originally populating a large QTableWidget takes a long
The solution for this is to use a QTableView and a QTableModel. See Qt
and examples in PyQt (eg. in examples/itemviews ).
> So if someone can offer help, it would help us both!
> Glenn -- http://nevcal.com/
> A protocol is complete when there is nothing left to remove.
> -- Stuart Cheshire, Apple Computer, regarding Zero Configuration
> PyQt mailing list PyQt at riverbankcomputing.com
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