Thank you for the de-noobification.
Fortunately I can't see this having more than 50-100 features in a setting.
Whatever the problem is then, it's specific to that computer then. (1000
would probably take it 10 minutes)
-Jim Stapleton
----- Original Message -----
From: "Matt Newell" <[EMAIL PROTECTED]>
To: <[email protected]>; "Hans-Peter Jansen" <[EMAIL PROTECTED]>
Sent: Wednesday, January 10, 2007 7:57 PM
Subject: Re: [PyKDE] performance issues
On Wednesday 10 January 2007 15:52, Steven James Samuel Stapleton wrote:
Sure, I thought the size issue was more due to not wanting to deal with a
lot of code.
run the ItemGenerator.py script in the top level directory. I've actually
got a newer version with tooltips, but this one will do for the example,
especially since the file in question is a lot shorter (this one also
displays the behavior, I wrote the new stuff today).
Click the "add features" button, and a number of sets will be added to
the
lower box equal to the number in the box next to "add feature" button.
the ui/components/feature_box.py file/class has the class that
holds/creates the sets (with the addBars() function), and the classes are
defined in the ui/components/feature_bars.py file/class.
http://www.thestapletons.org/jim/APPS.tar.bz2
Seems to me that it's the QTextEdit's that are taking the time to
construct.
It takes about 28 seconds to create 1000 "features" - 7000 QTextEdits. It
only takes about 3.5 seconds if i replace the QTextEdit's with simple
QWidgets.
I would suggest avoiding so many QTextEdits. You could use QLineEdits if
you
don't need multiple lines, or avoid using widgets for the view by using a
QTreeView/QTreeWidget and have custom editting widgets when the user
double
clicks to edit a row.
Also your hide/show functions are redundant. If you hide a qt widget all
of
it's children are hidden automatically, and will reappear when you show
the
widget. If you construct a widget with children and call show on it, all
the
children are automatically shown.
Matt
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