I want to implement more functionality to the bar, similar to what
machi has in its bar, but it seems a lot easier to just handle the bar
with the rest of the manage/render loop that rwm and beansprout use.
To do that, I had to convert the bar to use river-shell-surface instead
of zwlr-layer-shell.
In that process, I also removed support for zwlr-layer-shell exclusive
zones. It made calculating the usable area for the layout more annoying.
If someone *really* wants, I would consider adding it back, but the only
thing I can think of that requires exclusive area is a bar, and we don't
really support other bars, so I don't think it's needed.
I also switched a couple of places to use saturating subtraction on
unsigned ints.
Before, we were missing the initial events from the wl_output, including
the scale. This meant that we weren't scaling the bar clock correctly.
To fix it, we just moved the wl_global binding into the .wl_output event
We also got rid of the hashmap of outputs in Globals and Context.
Also fixed a crash that I'm really not sure how I didn't have happen
before during Output.create()
Right now, only Window is updated to use Rect. I'll try updating all
instances of x,y,width,height combo to use it.
This adds a few new options for the bar (instead of hardcoding all of
them). fonts, text_color, background_color, positoon, and margins.
Also fixed a couple of bugs when reloading the config and destroying
layer shell and wl surfaces in the wrong order.
Both the wl_surface and layer_surface in each are always expected to
exist at the same time. Since they're optional, it makes more sense to
combine them into a single optional struct.
Since each bar has its own, it's easier to just share it. This does
create a consistent slight overhead, but may be useful anyways if we
care about the Env more further down the line.
They should use gpa.destroy() instead of foo.destroy() because (most) of
them have fields that may not be initialized by the first error, so
the foo.destroy() could crash.
This implements more of the text rendering and a clock was the easiest
part. I still need to add the tag bit. I'd also like to hide the tags
but still show the clock like beanclock when windows are fullscreened
parseArgs() contains all of the argument parsing logic in a single fn.
run() handles the event loop. To work with the bar, I had to re-write
the loop to use polling similar to the loop in `beanclock` instead of
just `while (true) dispatch`.
