Set radius for each window's corner

[Micovec]

Describe your PR, what does it fix/add?

This PR opens a possibility to define a radius for each window's corner separately. This can come as a new way for ricing Hyprland in combination of modified hyprwm/hyprland-plugins/hyprbars (please don't judge color scheming, I set them to have a high contrast).

As you can see window has rounded corners only at the bottom and hyprbars only at the top. They become more unified and it actually seems like hyprbars is part of the window.

Rounding has additional definition:

decoration {
    rounding = 15 # old way
    rounding = 0,0,15,15 # new way: topLeft, topRight, bottomRight, bottomLeft
}

Is there anything you want to mention? (unchecked code, possible bugs, found problems, breaking compatibility, etc.)

However it is not done yet and there are still some issues. For example: window border isn't part of the bar (in picture set to size 7) as it still renders around the original window and not around hyprbars.

On top of that as you can see (in highlighted red rectangle) the border is rounded even though radius is set to 0. To keep it consistent there shouldn't be any rounding.

When merged it will break hyprwm/hyprland-plugins/hyprbars and hyprwm/hyprland-plugins/borders-plus-plus as they rely on CWindow::rounding() and not the changed CWindow::getCornerRadii().

Also I'm not sure if substraction box for renderdata.damage has correct values. I've left a TODO comment there.

Is it ready for merging, or does it need work?

PR is not ready for merging. I just wanted to see if it's a valid feature to add into Hyprland and if there's any interest for it.

If it will be decided to merge this, I'll make another PR into hyprwm/hyprland-plugins to fix compatibility and rounding.

[Eclextic]

Probably not supported by the API but can one add multiple ways of defining variables, vaxry?
In this example it would be perfect:

decoration {
    rounding = 15 # old way => would become the same as rounding = 15,15,15,15
    rounding = 0,0,15,15 # new way => when needed users can use this syntax
}

[Micovec]

Probably not supported by the API but can one add multiple ways of defining variables, vaxry? In this example it would be perfect:

decoration {
    rounding = 15 # old way => would become the same as rounding = 15,15,15,15
    rounding = 0,0,15,15 # new way => when needed users can use this syntax
}

Yes. I kept the old way of defining rounding with one integer and added a new way with four separated by comma.

This

rounding = 15

then gets mapped as:

rounding = 15,15,15,15

[vaxerski]

@Eclextic already possible.

[cristian-ciobanu]

This would be a nice addition at least for people who use hyprbars as plugin.

[Eclextic]

This would be a nice addition at least for people who use hyprbars as plugin.

Pssst... That's what the Author of this MR was eluding to!