* Add current heater power % to job status
* Add show_heater_power config option and move update_temp()s to ScreenPanel
* Add the option to the UI config instead of the docs
* Prefer extra items on job_status over the power
There is not a lot of space, it's a trade off, and people will likely prefer extra_items
* Remove the comma, none of the other buttons have it
* job_status: inherit the parent config
* screen: create reload_panels to avoid some service restarts
* extrude: fix power breaking multi-extruder setups
* main and temp: remove degrees char from the table
* main and temp: revert removal of the header
Co-authored-by: alfrix <alfredomonclus@gmail.com>
it's possible to just use one selection list and unselect the rest,
but i think that there is some benefit in usability keeping the selections separated
Use f-strings
Avoid unnecessary casts to str()bool()int()
Ensure file closure
Merge nested ifs
Simplify for-assigns-appends with comprehensions and internal functions
Avoid shadowing internal function names
Initialize variables
Return value directly instead of assign then return
Make some methods static
These changes allow to define custom code to be run when using the cooldown preset.
Here an example in the configuration:
```
[preheat cooldown]
gcode: M107
```
Drawing the graph has a high load impact, reduce the interval of redraw
if the user needs instantaneous values, then the list provides it,
the graph is there to provide historical data of behaviour not instantaneous values.
-------- | Load | Note
idle | 0.3 | screensaver
menu | 0.4 | No process update
extrude | 0.6 | updates temp
graph 5s | 0.8 |
graph 1s | 1.2 |
the load is the 15 min mean after about half an hour
Tests carried out on a Pi3A
fix axis sizes for high resolutions (tie to font_size)
fix update interval sometimes being faster (fix printer timer)
fix new device added causing horizontal line (use min not max)
