104 lines
2.7 KiB
Python
104 lines
2.7 KiB
Python
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import adafruit_midi
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import usb_midi
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from adafruit_midi.control_change import ControlChange
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from adafruit_midi.note_off import NoteOff
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from adafruit_midi.note_on import NoteOn
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from adafruit_midi.pitch_bend import PitchBend
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from adafruit_midi.program_change import ProgramChange
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from adafruit_midi.start import Start
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from adafruit_midi.stop import Stop
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from kmk.keys import make_argumented_key
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from kmk.modules import Module
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class midiNoteValidator:
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def __init__(self, note=69, velocity=64, channel=None):
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self.note = note
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self.velocity = velocity
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self.channel = channel
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class MidiKeys(Module):
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def __init__(self):
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make_argumented_key(
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names=('MIDI_CC',),
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validator=ControlChange,
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on_press=self.on_press,
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)
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make_argumented_key(
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names=('MIDI_NOTE',),
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validator=midiNoteValidator,
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on_press=self.note_on,
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on_release=self.note_off,
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)
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make_argumented_key(
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names=('MIDI_PB',),
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validator=PitchBend,
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on_press=self.on_press,
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)
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make_argumented_key(
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names=('MIDI_PC',),
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validator=ProgramChange,
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on_press=self.on_press,
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)
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make_argumented_key(
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names=('MIDI_START',),
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validator=Start,
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on_press=self.on_press,
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)
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make_argumented_key(
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names=('MIDI_STOP',),
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validator=Stop,
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on_press=self.on_press,
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)
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try:
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self.midi = adafruit_midi.MIDI(midi_out=usb_midi.ports[1], out_channel=0)
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except IndexError:
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self.midi = None
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# if debug_enabled:
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print('No midi device found.')
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def during_bootup(self, keyboard):
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return None
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def before_matrix_scan(self, keyboard):
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return None
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def after_matrix_scan(self, keyboard):
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return None
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def process_key(self, keyboard, key, is_pressed, int_coord):
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return key
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def before_hid_send(self, keyboard):
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return None
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def after_hid_send(self, keyboard):
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return None
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def on_powersave_enable(self, keyboard):
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return None
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def on_powersave_disable(self, keyboard):
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return None
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def send(self, message):
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if self.midi:
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self.midi.send(message)
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def on_press(self, key, keyboard, *args, **kwargs):
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self.send(key.meta)
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def note_on(self, key, keyboard, *args, **kwargs):
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self.send(NoteOn(key.meta.note, key.meta.velocity, channel=key.meta.channel))
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def note_off(self, key, keyboard, *args, **kwargs):
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self.send(NoteOff(key.meta.note, key.meta.velocity, channel=key.meta.channel))
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