1 files changed, 145 insertions, 0 deletions
diff --git a/solo-tool-project/src/solo_tool/midi_controller_launchpad_mini.py b/solo-tool-project/src/solo_tool/midi_controller_launchpad_mini.py
new file mode 100644
index 0000000..961127c
--- /dev/null
+++ b/solo-tool-project/src/solo_tool/midi_controller_launchpad_mini.py
@@ -0,0 +1,145 @@
+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.setCallback(self._callback)
+        self._midiWrapper.connect(MidiController.DEVICE_NAME)
+        self._initialiseButtonLEDs()
+
+    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)
+