1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
from .midi_wrapper_mido import MidiWrapper
class MidiController:
DEVICE_NAME = "Launchpad Mini MIDI 1"
LIGHT_CONTROL_CHANNEL = 0
LED_GREEN = 124
LED_YELLOW = 126
LED_RED = 3
LED_OFF = 0
BUTTON_MATRIX = [[x for x in range(y * 16, y * 16 + 8)] for y in range(0,8)] # address as [row][col]
MIN_PLAYBACK_RATE = 0.5
MAX_PLAYBACK_RATE = 1.2
PLAYBACK_RATE_STEP = 0.1
MIN_PLAYBACK_VOLUME = 0.5
MAX_PLAYBACK_VOLUME = 1.2
PLAYBACK_VOLUME_STEP = 0.1
def __init__(self, soloTool, midiWrapperOverride=None):
self._soloTool = soloTool
if midiWrapperOverride is not None:
self._midiWrapper = midiWrapperOverride
else:
self._midiWrapper = MidiWrapper()
self._registerHandlers()
self._soloTool.registerPlayingStateCallback(self._updatePlayPauseButton)
self._soloTool.registerPlaybackVolumeCallback(self._updateVolumeRow)
self._soloTool.registerPlaybackRateCallback(self._updateRateRow)
self._soloTool.registerAbLimitEnabledCallback(self._updateToggleAbLimitEnableButton)
def _registerHandlers(self):
self._handlers = {
96 : self._soloTool.stop,
99 : self._soloTool.jumpToA,
112 : self._playPause,
101 : self._toggleAbLimitEnable,
102 : self._soloTool.previousStoredAbLimits,
103 : self._soloTool.nextStoredAbLimits,
118 : self._soloTool.previousSong,
119 : self._soloTool.nextSong
}
for i in range(0, 8):
volume = round(MidiController.MIN_PLAYBACK_VOLUME + MidiController.PLAYBACK_VOLUME_STEP * i, 1)
self._handlers[i] = self._createSetPlaybackVolumeCallback(volume)
for i, button in enumerate(range(16, 24)):
rate = round(MidiController.MIN_PLAYBACK_RATE + MidiController.PLAYBACK_RATE_STEP * i, 1)
self._handlers[button] = self._createSetPlaybackRateCallback(rate)
def connect(self):
self._midiWrapper.connect(MidiController.DEVICE_NAME, self._callback)
self._initialiseButtonLEDs()
def disconnect(self):
self._allLEDsOff()
self._midiWrapper.disconnect()
def _callback(self, msg):
if msg.type != "note_on" or msg.velocity < 127:
return
if msg.note in self._handlers:
handler = self._handlers[msg.note]()
def _playPause(self):
if self._soloTool.isPlaying():
self._soloTool.pause()
else:
self._soloTool.play()
def _toggleAbLimitEnable(self):
self._soloTool.setAbLimitEnable(not self._soloTool.isAbLimitEnabled())
def _updatePlayPauseButton(self, playing):
if playing:
self._setButtonLED(7, 0, MidiController.LED_GREEN)
else:
self._setButtonLED(7, 0, MidiController.LED_YELLOW)
def _updateToggleAbLimitEnableButton(self, enabled):
if enabled:
self._setButtonLED(6, 5, MidiController.LED_GREEN)
else:
self._setButtonLED(6, 5, MidiController.LED_RED)
def _updateVolumeRow(self, volume):
t1 = int(round(volume / MidiController.PLAYBACK_VOLUME_STEP, 1))
t2 = int(round(MidiController.MIN_PLAYBACK_VOLUME / MidiController.PLAYBACK_VOLUME_STEP, 1))
lastColumnLit = t1 - t2 + 1
self._lightRowUntilColumn(0, lastColumnLit, MidiController.LED_GREEN)
def _updateRateRow(self, rate):
t1 = int(round(rate / MidiController.PLAYBACK_RATE_STEP, 1))
t2 = int(round(MidiController.MIN_PLAYBACK_RATE / MidiController.PLAYBACK_RATE_STEP, 1))
lastColumnLit = t1 - t2 + 1
self._lightRowUntilColumn(1, lastColumnLit, MidiController.LED_YELLOW)
def _createSetPlaybackRateCallback(self, rate):
def f():
self._soloTool.setPlaybackRate(rate)
return f
def _createSetPlaybackVolumeCallback(self, volume):
def f():
self._soloTool.setPlaybackVolume(volume)
return f
def _setButtonLED(self, row, col, colour):
self._midiWrapper.sendMessage(MidiController.BUTTON_MATRIX[row][col], colour, MidiController.LIGHT_CONTROL_CHANNEL)
def _lightRowUntilColumn(self, row, column, litColour):
colours = [litColour] * column + [MidiController.LED_OFF] * (8 - column)
for col in range(0, 8):
self._setButtonLED(row, col, colours[col])
def _allLEDsOff(self):
for row in range(0, 8):
for col in range(0, 8):
self._setButtonLED(row, col, MidiController.LED_OFF)
def _initialiseButtonLEDs(self):
self._allLEDsOff()
# volume buttons
self._updateVolumeRow(self._soloTool.getPlaybackVolume())
# playback rate buttons
self._updateRateRow(self._soloTool.getPlaybackRate())
# playback control
self._setButtonLED(6, 0, MidiController.LED_RED)
self._updatePlayPauseButton(self._soloTool.isPlaying())
# AB repeat toggle
self._updateToggleAbLimitEnableButton(self._soloTool.isAbLimitEnabled())
# AB control
self._setButtonLED(6, 3, MidiController.LED_YELLOW)
self._setButtonLED(6, 6, MidiController.LED_RED)
self._setButtonLED(6, 7, MidiController.LED_GREEN)
# Song control
self._setButtonLED(7, 6, MidiController.LED_RED)
self._setButtonLED(7, 7, MidiController.LED_GREEN)
|
