- add select method

Lib.Audio/Channel.cs

@@ -19,14 +19,17 @@ namespace Lib.Audio
 {
     public class Channel : IChannel
     {
+        private readonly IMidiCommunication _midiCommunication;
         private readonly int _channelNumber;
         private IMidiMessage? _acknowledgeMessage;
 
         public Channel(XmlChannel xmlChannel,
+            IMidiCommunication midiCommunication,
             IFaderFactory faderFactory,
             IKnobFactory knobFactory,
             IButtonFactory buttonFactory)
         {
+            _midiCommunication = midiCommunication;
             _channelNumber = xmlChannel.ChannelNumber;
 
             if (xmlChannel.Fader != null)
@@ -51,7 +54,19 @@ namespace Lib.Audio
         public List<IButton>? Buttons { get; }
         public IControllable? Controllable { get; private set; }
         
-        public void MapControllable(IControllable controllable) => Controllable = controllable;
+        public void MapControllable(IControllable controllable)
+        {
+            Controllable = controllable;
+
+            ISelectButton? selectButton = Buttons?.OfType<ISelectButton>().FirstOrDefault();
+            IMidiMessage? selectMessage = selectButton?.Select();
+            
+            if (selectMessage != null)
+                _midiCommunication.Send(selectMessage);
+            
+            
+        }
+
         public void HandleMessage(IMidiMessage message)
         {
             if (message is NoteOnMessage noteOnMessage)
@@ -84,12 +99,12 @@ namespace Lib.Audio
             }
         }
 
-        public void SendAcknowledge(IMidiCommunication midiCommunication)
+        public void SendAcknowledge()
         {
             if (_acknowledgeMessage == null)
                 return;
             
-            midiCommunication.Send(_acknowledgeMessage);
+            _midiCommunication.Send(_acknowledgeMessage);
             _acknowledgeMessage = null;
         }
 

Lib.Audio/Controls/Buttons/Interfaces/ISelectButton.cs

@@ -2,10 +2,12 @@
 // Created: 2021-04-17
 // Copyright(c) 2021 SimonG. All Rights Reserved.
 
+using Lib.Midi.Messages.Interfaces;
+
 namespace Lib.Audio.Controls.Buttons.Interfaces
 {
     public interface ISelectButton : IButton
     {
-        
+        IMidiMessage? Select();
     }
 }

Lib.Audio/Controls/Buttons/SelectButton.cs

@@ -3,6 +3,8 @@
 // Copyright(c) 2021 SimonG. All Rights Reserved.
 
 using Lib.Audio.Controls.Buttons.Interfaces;
+using Lib.Audio.Interfaces;
+using Lib.Midi.Messages.Interfaces;
 
 namespace Lib.Audio.Controls.Buttons
 {
@@ -13,5 +15,8 @@ namespace Lib.Audio.Controls.Buttons
         {
             
         }
+
+        public override IMidiMessage? Handle(IControllable? controllable, Velocity velocity) => null; //for now don't do anything when pressed
+        public IMidiMessage? Select() => base.Handle(null, Velocity.On);
     }
 }

Lib.Audio/Device.cs

@@ -37,12 +37,12 @@ namespace Lib.Audio
         
         public void StartCommunication(bool useMidiView) => _midiCommunication.Open(useMidiView);
         private List<IChannel> InitializeChannels() => _driver.Channels == null ? new List<IChannel>()
-            : _driver.Channels.Select(c => _channelFactory.Create(c)).ToList();
+            : _driver.Channels.Select(c => _channelFactory.Create(c, _midiCommunication)).ToList();
 
         private void OnMidiCommunicationMessageReceived(object? sender, IMidiMessage message)
         {
             Channels[message.ChannelNumber - 1].HandleMessage(message);
-            Channels[message.ChannelNumber - 1].SendAcknowledge(_midiCommunication);
+            Channels[message.ChannelNumber - 1].SendAcknowledge();
         }
 
         private void OnMidiCommunicationErrorReceived(object? sender, IMidiMessage message) => 

Lib.Audio/Factories/IChannelFactory.cs

@@ -4,11 +4,12 @@
 
 using Lib.Audio.Interfaces;
 using Lib.Driver.Xml;
+using Lib.Midi.Interfaces;
 
 namespace Lib.Audio.Factories
 {
     public interface IChannelFactory
     {
-        IChannel Create(XmlChannel xmlChannel);
+        IChannel Create(XmlChannel xmlChannel, IMidiCommunication midiCommunication);
     }
 }

Lib.Audio/Interfaces/IChannel.cs

@@ -5,7 +5,6 @@
 using System.Collections.Generic;
 using Lib.Audio.Controls.Buttons.Interfaces;
 using Lib.Audio.Controls.Interfaces;
-using Lib.Midi.Interfaces;
 using Lib.Midi.Messages.Interfaces;
 
 namespace Lib.Audio.Interfaces
@@ -20,6 +19,6 @@ namespace Lib.Audio.Interfaces
 
         void MapControllable(IControllable controllable);
         void HandleMessage(IMidiMessage message);
-        void SendAcknowledge(IMidiCommunication midiCommunication);
+        void SendAcknowledge();
     }
 }