#272 - Scripting Input terminal

[vintagepc]

Description

Adds a terminal feature for scripting input as discussed at the group call - as suggested by @wavexx

Behaviour/ Breaking changes

Should not break anything existing. Terminal is not enabled by default, and:

• Mouse over the terminal area to give it focus and have it receive the key commands. Terminal has focus when the _ cursor appears.
• Is enabled by passing --terminal to the program arguments
• Is locked while a script is running
• Offers Tab auto-completion based on the shown suggestion
• Entries are sticky for rapid command adjustment (i.e. they do not clear after being executed).
• ESC key will clear the line if desired.
• No left/right cursor positioning at the moment, DEL/Backspace will delete the last character.

Future ideas/improvements

• Provide status readback of the last command you typed
• Show command help too?
• Polish - layout probably breaks if MMU is enabled. Will need to fix that.

Have you tested the changes?

Locally - This is a draft PR for others to chime in and offer suggestions/enhancements before we commit and fully integrate/polish it.

Other

Use caution when making changes; things will need to cross thread boundaries between the GL and AVR threads. -DTHREAD_SANITY=1 is your friend.

Linked issues:

• Closes [FEATURE] Terminal Console #272

[codecov-io]

Codecov Report

Merging #273 into master will decrease coverage by 1.29%.
The diff coverage is 25.71%.

@@            Coverage Diff             @@
##           master     #273      +/-   ##
==========================================
- Coverage   89.84%   88.55%   -1.30%     
==========================================
  Files         137      137              
  Lines        6167     6289     +122     
==========================================
+ Hits         5541     5569      +28     
- Misses        626      720      +94     

Impacted Files	Coverage Δ
parts/ScriptHost.h	92.30% <0.00%> (-7.70%)	⬇️
parts/components/A4982.cpp	100.00% <ø> (ø)
parts/ScriptHost.cpp	56.72% <19.81%> (-14.71%)	⬇️
MK404.cpp	89.08% <50.00%> (-5.58%)	⬇️
utility/MK3S_Bear.h	100.00% <0.00%> (+40.00%)	⬆️

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