[Feature Request] Control touched global callback

Developers
1

It would be very useful to have a global callback which is fired whenever a control is touched via knob or screen. This callback would provide the control id as a parameter.

The use case that I have is creating a map between an external controller and the controls in the E1.

2

a global callback via the knob exists (they are called ā€˜potsā€™ in the documentation)

itā€™s called ā€˜onTouchā€™ or something. You need to subscribe to the service first in lua. Itā€™s in the documentation.

Not sure there is a callback for ā€˜onScreenā€™. if you find it, let it know ok?

3

Iā€™m currently using the onPotTouched callback, but the interaction for my use case isnā€™t the best. Better would be onControlTouched, which is a reasonable contract ā€œif this control is interacted with let me knowā€

4

Well, Iā€™m also in favor of an onControlTouched, for instance to show help texts.

5

Indeed, thatā€™s a nice use case. Out of curiosity, is there already a way to write some overlay text which might span multiple controls?

6

If you define a group label across the top of 2 or 3 controls, I think you can get 40 characters in there. For debugging, sometimes Iā€™ll throw up 2 labels and have 80 characters for messages.

(I have a preset that does that - donā€™t know if itā€™s public).

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7

Yeah that seems usefull.

What is your use case?

I did something like this:

-- Use pot touched to save initial value and then use pot released touched=false 
-- As the last value.  Then calculate how many arrows up or down and send them ??
function events.onPotTouch(potId, controlId, touched)
  --print ("controlId: " .. controlId)
  local myCtl = controls.get(controlId)
  local myVal = myCtl:getValue("value")
  local myMsg = myVal:getMessage()
  currentParameterNumber = myMsg:getParameterNumber() 

   lastTouchValue = myMsg:getValue()

end
8

I have a ā€œLearnā€ control which when trigger will listen for incoming midi from external devices and then map these to E1 controls. The way I select which controls are being mapped is with events.onPotTouch but this is sub-optimal, due to having to first having to select the right section of the screen and then tapping the pot instead of just tapping the control directly on the touch screen.

9

Ah I see. I like the idea it is cool,

ā€œmidi learnā€ in a template would be cool and useful in Ableton.
And of course in synths that have assignable controls.

Could you share the code or do you have it in a template available?

10

Iā€™m using pot touch in the Ub-Xa preset. When you touch a pot it shows briefly the key combination of the control, so you donā€™t have to memorize how on the physical synth the menu diving or shift / hold combinations take place.
In other words it turns the E1 in an interactive manual for the synth

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