create VmcExtMidiCcBit

src/lib.rs

@@ -645,3 +645,47 @@ impl MessageBehavior for VmcExtMidiCcVal {
         return Ok(VmcExtMidiCcVal { knob, value });
     }
 }
+
+struct VmcExtMidiCcBit {
+    knob: i32,
+    active: bool,
+}
+
+impl MessageBehavior for VmcExtMidiCcBit {
+    fn to_sendable_osc_message(&self) -> OscMessage {
+        let mut args = vec![OscType::from(self.knob)];
+        if self.active {
+            args.push(OscType::from(1));
+        } else {
+            args.push(OscType::from(0));
+        }
+        return OscMessage {
+            addr: String::from("/VMC/Ext/Midi/CC/Val"),
+            args,
+        };
+    }
+    fn parse_from_osc_message(msg: OscMessage) -> Result<Self, String> {
+        if msg.args.len() != 2 {
+            return Err(String::from("arg count invalid"));
+        }
+        let knob: i32;
+        let active: bool;
+        match msg.args[0] {
+            OscType::Int(i) => knob = i,
+            _ => return Err(String::from("arg type invalid")),
+        }
+        match msg.args[1] {
+            OscType::Int(i) => {
+                if i == 0 {
+                    active = false;
+                } else if i == 1 {
+                    active = true;
+                } else {
+                    return Err(String::from("arg value invalid"));
+                }
+            }
+            _ => return Err(String::from("arg type invalid")),
+        }
+        return Ok(VmcExtMidiCcBit { knob, active });
+    }
+}