Is it possible to invert Y on an instance of QPainter?

[SPlatten]

I have a widget which uses an offscreen image for painting then I copy the image to the visible display. I need to invert the vertical coordinate system, the offscreen image is 2000 pixels in height and the visible area is just 408.

I have a scroll bar that controls what part of the offscreen image is transferred to the visible area, however the requirement is for the coordinate system to be inverted where 0,0 is bottom left.

Is this possible to do with a transformation?

[Christian Ehrlicher]

@SPlatten said in Is it possible to invert Y on an instance of QPainter?:

Is this possible to do with a transformation?

Yes

[SPlatten]

@Christian-Ehrlicher , thank you, found:

https://stackoverflow.com/questions/4413570/use-window-viewport-to-flip-qpainter-y-axis