Added playback rate functionality to launchpad

2 files changed, 29 insertions, 1 deletions

diff --git a/midi_controller_launchpad_mini.py b/midi_controller_launchpad_mini.py
index adf18d5..960dd7d 100644
--- a/midi_controller_launchpad_mini.py
+++ b/midi_controller_launchpad_mini.py
@@ -11,14 +11,18 @@ class MidiController:
             self._midiWrapper = MidiWrapper()
 
         self._handlers = {
+            96  : self._soloTool.stop,
             112 : self._playPause,
-            96 : self._soloTool.stop,
             101 : self._soloTool.jumpToA,
             102 : self._soloTool.previousStoredAbLimits,
             103 : self._soloTool.nextStoredAbLimits,
             118 : self._soloTool.previousSong,
             119 : self._soloTool.nextSong
         }
+        
+        for i in range(16, 24):
+            rate = round(0.5 + (i - 16) * 0.1, 1)
+            self._handlers[i] = self._createSetPlaybackRateCallback(rate)
 
     def connect(self):
         self._midiWrapper.connect(MidiController.DEVICE_NAME)
@@ -37,3 +41,8 @@ class MidiController:
         else:
             self._soloTool.play()
 
+    def _createSetPlaybackRateCallback(self, rate):
+        def f():
+            self._soloTool.setPlaybackRate(rate)
+        return f
+
diff --git a/midi_launchpad_mini_integrationtest.py b/midi_launchpad_mini_integrationtest.py
index 8779503..ee39182 100644
--- a/midi_launchpad_mini_integrationtest.py
+++ b/midi_launchpad_mini_integrationtest.py
@@ -149,6 +149,24 @@ def test_previousAndNextAbButtons(uut, midiWrapperMock, soloTool, playerMock):
     midiWrapperMock.simulateInput(previousLimitButton)
     checkLimit(abLimits[0][0], abLimits[0][1])
 
+def test_playbackRateButtons(uut, midiWrapperMock, soloTool, playerMock):
+    playbackRateOptions = {
+        16 : 0.5,
+        17 : 0.6,
+        18 : 0.7,
+        19 : 0.8,
+        20 : 0.9,
+        21 : 1.0,
+        22 : 1.1,
+        23 : 1.2
+    }
+    uut.connect()
+    assert playerMock.rate == 1.0
+
+    for button in playbackRateOptions:
+        midiWrapperMock.simulateInput(button)
+        assert playerMock.rate == playbackRateOptions[button]
+
 def test_unassignedButton(uut, midiWrapperMock):
     unassignedButton = 48
     uut.connect()
@@ -156,3 +174,4 @@ def test_unassignedButton(uut, midiWrapperMock):
     # expect no crash
     midiWrapperMock.simulateInput(unassignedButton)
     # XXX would be better to assert that nothing changed in the solo tool
+