Paint Data is buggy - ill defined

[borondics]

What's wrong?

I have some not very well definable behaviour in Paint Data. I was recreating the documentation example for new screenshots and first I had a couple of crashes with segfault, so not very informative, although I reproduced it twice. Then, after creating a new workflow from scratch it started working but it visibly slows down every time I paint many points to the state that it keeps painting after the mouse is released.

How can we reproduce the problem?

Paint a lot of data (might depend on the computer how much a lot is) with different classes, just like in the help of the widget. Something like this

What's your environment?

• Operating system: MacOS 14.6.1
• Orange version: 3.39.0dev master
• How you installed Orange: manually from the master branch