chore: Do not display trims position when trim is set as 3POS

[3djc]

Do not draw the trim position indicator when trims are set to 3POS

[froqstar]

For color LCD this works already?

[3djc]

Part of 2.10 rc1 readme: Unused trim switches can be used as 3POS switches

[froqstar]

Should've asked differently:
For color LCD this is not a problem since the trim display code already checks for the trim being a 3pos switch?

[3djc]

I see, no it is not checking, but it is not checking either if trims are disabled I think. Could you have a look @philmoz ?

[philmoz]

I see, no it is not checking, but it is not checking either if trims are disabled I think. Could you have a look @philmoz ?

Quick fix - add this between lines 2 and 3 of MainViewTrim::checkEvents()

  trim_t v = getRawTrimValue(mixerCurrentFlightMode, stickIndex);
  if (v.mode == TRIM_MODE_NONE || v.mode == TRIM_MODE_3POS) {
    // Hide trim if not being used
    if (!lv_obj_has_flag(lvobj, LV_OBJ_FLAG_HIDDEN))
      lv_obj_add_flag(lvobj, LV_OBJ_FLAG_HIDDEN);
    return;
  } else {
    if (lv_obj_has_flag(lvobj, LV_OBJ_FLAG_HIDDEN))
      lv_obj_clear_flag(lvobj, LV_OBJ_FLAG_HIDDEN);
  }