On 09/16/2012 06:25 PM, Gopalakrishna Bhat wrote:
Hi,
On Sun, Sep 16, 2012 at 9:44 PM, Shriramana Sharma <samj...@gmail.com
<mailto:samj...@gmail.com>> wrote:
Hello.
I'm working on some stuff involving bezier curves and wanted to write
my own bezier display applet to keep in handy, so that I can adjust
the nodes and handles and it would show me real-time what the
resultant curve looks like.
However I am running into some curious segfault even with a minimal
bezier display. I've attached the code that produces it. (FWIW this
code is under the GPL since I'm developing more of this in PyQt under
the GPL.) I hope someone can help me resolve the problem.
QPainter in the paintEvent for BeizerWidget should not be static.
Remove that.
Yes, probably your QPainter is deleted after first paintEvent is
processed and hence you can see the curve for a fraction of the second
before your app crashes on a second paintEvent.
I am using Qt 4.8.1 on Kubuntu Precise.
--
Shriramana Sharma
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With regards,
Gopalakrishna
--
My blog http://gkbhat.blogspot.com
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