How to avoid redraw of widgets outside visibleRegion on update? [PyQt5]

[anda_skoa]

I think we should be able to do that with Widgets, shouldn't we?

Of course.

I was just asking because you say you have fixed sizes.
The moment you have translations that is no longer true.

In our testing, our target CPU wasn't powerful enough to run QtQuick at a reasonable framerate. We don't have a functional GPU, so we're relying on slow software rendering to the framebuffer.

Is that with the QQuick 2D render or using software rendered OpenGL?

The former was specifically created for systems without GPU.
There is even a research project for running QtQuick UIs on micro controllers

Also, does QtQuick have a visual layout tool like Designer?

There is a visual designer, however most people prefer to do the layouting in QtQuick manually. Either suing anchors or the layout types.

Cheers,
_