feat(bw128): display PPM value in channel monitor

[philmoz]

[ajjjjjjjj]

Great addition!
I would also suggest this for better alignment for channels 10+:

constexpr coord_t CHANNEL_VALUE_OFFSET = CHANNEL_NAME_OFFSET + 43;
constexpr coord_t CHANNEL_GAUGE_OFFSET = CHANNEL_VALUE_OFFSET - 1;

[philmoz]

Need to rethink this. The space on the right is also used for the override and inverted indicators ('OVR' and 'INV').

[ajjjjjjjj]

Maybe | BLINK for "INV" and "OVR"?

[pfeerick]

Probably should be thinking about if this change really makes sense to make ... as currently the channel value column follows the PPM Units setting... (which probably needs to be renamed, but that is a different topic)... and thus allows the user the choose what is shown in most places in the UI for the channel value... -100 to 100, -100.0 to 100 or 988-2012...

This change not only does not honour that configuration (i.e. why does it show both if I have configured that I want 0.0?), but also has that side effect of messing up the UI as mentioned (OVR/INV)...

i.e. before

after

I just wonder if heading down this path this is going to make the UI more cluttered or confusing by adding animated elements to make up for the limited space...

[philmoz]

Blinking the OVR and INV states:
https://github.com/user-attachments/assets/441251f0-629c-429b-93cc-56d5439a0416

If PPM Units is set to 'us' then the values swap sides (PPM on left, % on right). This is similar to what the color channel monitor does:
https://github.com/user-attachments/assets/ae65a80e-51c2-4341-99d1-41060d62d131

[philmoz]

I've updated the PR to alternate the right side view between the value, OVR and INV indicators.
This also means both OVR and INV can be shown if set (previously OVR took precedence).

Also adjusted the layout to stop the percentage value overlapping the channel name when units is set to show the decimal point.

Units without decimal:

Units with decimal:

PPM units: