From 1423f2922650a8ba9104e595f87d66a83a244fb1 Mon Sep 17 00:00:00 2001
From: Eddy Pedroni <eddy@0xf7.com>
Date: Mon, 3 Jan 2022 16:47:48 +0100
Subject: Added LED feedback to playback rate and volume, same hacky
 implementation

---
 midi_controller_launchpad_mini.py | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

(limited to 'midi_controller_launchpad_mini.py')

diff --git a/midi_controller_launchpad_mini.py b/midi_controller_launchpad_mini.py
index ec69509..2e83cc2 100644
--- a/midi_controller_launchpad_mini.py
+++ b/midi_controller_launchpad_mini.py
@@ -9,6 +9,14 @@ class MidiController:
     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 = 0.125
+    MAX_PLAYBACK_VOLUME = 1.0
+    PLAYBACK_VOLUME_STEP = 0.125
+
     def __init__(self, soloTool, midiWrapperOverride=None):
         self._soloTool = soloTool
         if midiWrapperOverride is not None:
@@ -30,12 +38,12 @@ class MidiController:
         }
         
         for i in range(0, 8):
-            volume = round(0.125 + i * 0.125, 3)
-            self._handlers[i] = self._createSetPlaybackVolumeCallback(volume)
+            volume = round(MidiController.MIN_PLAYBACK_VOLUME + i * MidiController.PLAYBACK_VOLUME_STEP, 3)
+            self._handlers[i] = self._createSetPlaybackVolumeCallback(volume, [MidiController.LED_GREEN] * (i + 1) + [MidiController.LED_OFF] * (7 - i))
 
-        for i in range(16, 24):
-            rate = round(0.5 + (i - 16) * 0.1, 1)
-            self._handlers[i] = self._createSetPlaybackRateCallback(rate)
+        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, [MidiController.LED_YELLOW] * (i + 1) + [MidiController.LED_OFF] * (7 - i))
 
     def connect(self):
         self._midiWrapper.setCallback(self._callback)
@@ -43,7 +51,7 @@ class MidiController:
         self._initialiseButtonLEDs()
 
     def _callback(self, msg):
-        if msg.velocity < 127:
+        if msg.type != "note_on" or msg.velocity < 127:
             return
 
         if msg.note in self._handlers:
@@ -61,14 +69,18 @@ class MidiController:
         self._soloTool.stop()
         self._setButtonLED(7, 0, MidiController.LED_YELLOW)
 
-    def _createSetPlaybackRateCallback(self, rate):
+    def _createSetPlaybackRateCallback(self, rate, colours):
         def f():
             self._soloTool.setPlaybackRate(rate)
+            for col, colour in enumerate(colours):
+                self._setButtonLED(1, col, colour)
         return f
 
-    def _createSetPlaybackVolumeCallback(self, volume):
+    def _createSetPlaybackVolumeCallback(self, volume, colours):
         def f():
             self._soloTool.setPlaybackVolume(volume)
+            for col, colour in enumerate(colours):
+                self._setButtonLED(0, col, colour)
         return f
 
     def _setButtonLED(self, row, col, colour):
-- 
cgit v1.2.3