From 77ea503de014130a411a49948ecf486f32ef90e0 Mon Sep 17 00:00:00 2001
From: Stephane Albanese <stephane.albanese@arturia.com>
Date: Fri, 17 Mar 2023 13:58:44 +0100
Subject: [PATCH] Add a channel getter to the NoteEvent implementation

---
 src/midi.rs | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/midi.rs b/src/midi.rs
index 1a612b0c..de84c503 100644
--- a/src/midi.rs
+++ b/src/midi.rs
@@ -386,6 +386,30 @@ impl<S> NoteEvent<S> {
             NoteEvent::MidiSysEx { .. } => None,
         }
     }
+
+    /// Returns the event's channel, if it has any.
+    pub fn channel(&self) -> Option<u8> {
+        match self {
+            NoteEvent::NoteOn { channel, .. } => Some(*channel),
+            NoteEvent::NoteOff { channel, .. } => Some(*channel),
+            NoteEvent::Choke { channel, .. } => Some(*channel),
+            NoteEvent::VoiceTerminated { channel, .. } => Some(*channel),
+            NoteEvent::PolyModulation { .. } => None,
+            NoteEvent::MonoAutomation { .. } => None,
+            NoteEvent::PolyPressure { channel, .. } => Some(*channel),
+            NoteEvent::PolyVolume { channel, .. } => Some(*channel),
+            NoteEvent::PolyPan { channel, .. } => Some(*channel),
+            NoteEvent::PolyTuning { channel, .. } => Some(*channel),
+            NoteEvent::PolyVibrato { channel, .. } => Some(*channel),
+            NoteEvent::PolyExpression { channel, .. } => Some(*channel),
+            NoteEvent::PolyBrightness { channel, .. } => Some(*channel),
+            NoteEvent::MidiChannelPressure { channel, .. } => Some(*channel),
+            NoteEvent::MidiPitchBend { channel, .. } => Some(*channel),
+            NoteEvent::MidiCC { channel, .. } => Some(*channel),
+            NoteEvent::MidiProgramChange { channel, .. } => Some(*channel),
+            NoteEvent::MidiSysEx { .. } => None,
+        }
+    }
 }
 
 impl<S: SysExMessage> NoteEvent<S> {