Hello Detlev,
Where abouts in eric4 do you do perform this "lazy" population? This
interests me as I suffer from a similar table population slowdown.
Thanks,
Darryl
Detlev Offenbach wrote:
Another solution would be to do lazy population of the model. That is, if
child items are to be shown, fetch them at that time. This avoids populating
the model in advance and is more responsive. See eric4 as an example.
Detlev
On Montag, 27. April 2009, Demetrius Cassidy wrote:
How many items do you need to populate in your model class? Unless you are
populating a view with thousands of items, I do not suggest threads at all
since they can be dangerous if you do not know how to use them.
If you absolutely needed to do this, my approach would be to have some sort
of method I could call on my dialog to fetch items in a separate thread in
the model, and once I have my data I could populate myself and call the
appropriate begin/end methods on my QAbstractItemModel class.
If I knew what you were trying to accomplish, then maybe I could give you
some better guidance.
Edwin Marshall-2 wrote:
I've been reading on qtcentre that it is possible to populate a model
from a separate qthread in order to prevent a program from freezing
before it loads, however the example code I have seen is a bit too much
involved (and in c++) for me to comprehend. I was wondering if anyone
knew of a pyqt program that did, or could point me toward some code
snippets doing this. The only thing that I can gather is that I need to
create the qthread in the __init__ method of my model and call it's run
command. However, I can't figure out what exactly need to go in the run
method, or what signals to emit/catch. Thansk in advance for any help
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