Wayland: Opacity, shadows and corner radius with scenefx

[jwijenbergh]

Draft. Depends on https://github.com/jwijenbergh/pywlroots/tree/scenefx (make sure to fetch submodules!) and https://github.com/wlrfx/scenefx

TODO:

• [ ]: Only unset shadow when needed for efficiency
• [ ]: Create a better Qtile API than setting window properties (maybe global config settings like bordercolor with wl_ prefixes?)
• [ ]: Make scenefx optional (detect that it is installed somehow), NO-OP opacity, shadows, corner radius if not
• [ ]: Align borders with corner radius
• [ ]: Is the xwayland implementation correct?

Opacity is now in wlroots too so in the future we wont need scenefx for this

Usage is setting the relevant properties, E.g. I just used this for testing:

# add to keys
Key([mod, "control"], "x", lazy.function(set_eye_candy))

def set_eye_candy(qtile):
    curr = qtile.current_window
    if curr.opacity < 1:
        curr.opacity = 1
        curr.shadow = None
        curr.shadowblur = 20
        curr.corner_radius = 0
    else:
        curr.opacity = 0.7
        curr.shadow = "#ff0000"
        curr.shadowblur = 500
        curr.corner_radius = 10

To set the setting globally right now you can e.g. use a hook:

@hook.subscribe.client_new
def new_win(win):
    win.opacity = 0.9
    win.shadow = "#000000aa"
    win.shadowblur = 40
    win.corner_radius = 10

Much love to the Scenefx team!

Using this branch in nix: https://gist.github.com/jwijenbergh/9d5de199f5ff8cda9b5439308032251b

[WillPower3309]

I'll work on the border impl on scenefx :)

[jwijenbergh]

I'll work on the border impl on scenefx :)

Thanks for your hard work!

[QBobWatson]

Thank you for this!

I just started a discussion that might be relevant: #4553 .

[github-actions]

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[WillPower3309]

We're hoping to get a stable release of scenefx out within the next week or two, we'll have SwayFX switch to the scenefx renderer in that time so will have feature parity soon

[WillPower3309]

SceneFX 0.1 released. We have a few tasks left before a 1.0 release: https://github.com/wlrfx/scenefx/milestone/2

[WillPower3309]

The border TODO will be helped by wlrfx/scenefx#46