Resize keeping the right scale

[albertopasqualetto]

• I have checked that a similar feature request does not already exist.

Is your feature request related to a problem? Please describe.
When a window resize is performed, it always creates black bars.

Describe the solution you'd like
It would be great if resizing is always keeping the original scale

Describe alternatives you've considered
Instead of double clicking the black bars or using the shortcut

[rom1v]

This is the behavior I initially tried to implement, but at least on X11 (and probably others), it resulted in stuttering and weird blinking. I don't know if the problem is in the backend or in the SDL abstraction, but it did not work well.

Maybe it could work well on Wayland, I haven't tested. If it's the case, it could be implemented as an option.

As a side note, having black bars also allows to click "outside" the device. For example, try a drag&drop starting on the device and drag outside, you can go further 😉 Not sure if it's very useful in practice, but at least it makes the behavior smooth, especially in fullscreen.

[albertopasqualetto]

I understand, really nice job anyway

[AndroidDeveloperLB]

@rom1v Did you have issues on other OSs too?
And what did you try exactly? Maybe you could check out how it's done on other open sourced apps?

BTW, a tip for those who get here:
You can double click the black areas, or use ALT+W , to manually remove the black areas.