David Boddie a écrit :
Ah, it seems that you were setting up the scene from with a method of
a class. Your problem was that, when the method returned, the scene
was garbage collected. Giving it a parent of "self" keeps it alive
thanks to Qt's parent-child object management. Alternatively, you
could have stored the scene in the instance of your class; in other
words, use self.scene instead.
That's why I had to provide a complete simple app now. I must apologize
as it may have been confusing.
Now, Dave just told me it was a bad idea to put an image on a
QGraphicsView. I've already done it inside a Label, but I've no controls
on it. He suggested I've to write my own widget (from Qlabel or QWidget)
for that, but I don't see why it's a bad design decision.
Well, I guess that was in some private e-mail.
Yes, I thought it was here.
It really depends on what
you are going to do with the image, and whether you need to use QGraphicsView
to show it.
Not some great tasks : I've got some Asymptote code in an editor and
launch a QProcess to view the output, but the size may vary and I wonder
finally if I should do this inside a modal widget with a QLabel inside.
David : thanks again for your good work on the wiki.
You're welcome. I notice that you have added a link to your hints and tips
page. Thanks for doing that.
No problem, I can add a lot more if it's ok. But I'm going on hollidays
in 4 days, so you'll certainly have to wait a little :)
In case you were unaware, there's an entire
French speaking Qt community online at
http://www.qtfr.org/
Yes, I know it well. I asked them to build a PyQt group, maybe it will
be on stage soon.
Maybe some of the people there can speak Python, too. ;-)
Not so much in fact, but lookin at C++ samples is a great help. That's
what I've done to build my editor with the line numbers.
David
Cheers,
Kib².
_______________________________________________
PyQt mailing list [email protected]
http://www.riverbankcomputing.com/mailman/listinfo/pyqt
