From 42c7ac457ace872180f804429daa14c446dfedf0 Mon Sep 17 00:00:00 2001
From: Simon G <simon.gockner@gmail.com>
Date: Thu, 8 Apr 2021 14:56:46 +0200
Subject: [PATCH] - start implementing fader

---
 Lib.Audio/Controls/Fader.cs             | 15 ++++++++++++++-
 Lib.Audio/Controls/Interfaces/IFader.cs |  6 +++++-
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/Lib.Audio/Controls/Fader.cs b/Lib.Audio/Controls/Fader.cs
index b9ea12f..cba245a 100644
--- a/Lib.Audio/Controls/Fader.cs
+++ b/Lib.Audio/Controls/Fader.cs
@@ -2,12 +2,25 @@
 // Created: 2021-04-07
 // Copyright(c) 2021 SimonG. All Rights Reserved.
 
+using System;
 using Lib.Audio.Controls.Interfaces;
 
 namespace Lib.Audio.Controls
 {
     public class Fader : IFader
     {
-        
+        private float _position;
+
+        public float Position
+        {
+            get => _position;
+            private set
+            {
+                _position = value;
+                PositionChanged?.Invoke(this, _position);
+            }
+        }
+
+        public event EventHandler<float> PositionChanged;
     }
 }
\ No newline at end of file
diff --git a/Lib.Audio/Controls/Interfaces/IFader.cs b/Lib.Audio/Controls/Interfaces/IFader.cs
index 1741180..475bb50 100644
--- a/Lib.Audio/Controls/Interfaces/IFader.cs
+++ b/Lib.Audio/Controls/Interfaces/IFader.cs
@@ -2,10 +2,14 @@
 // Created: 2021-04-07
 // Copyright(c) 2021 SimonG. All Rights Reserved.
 
+using System;
+
 namespace Lib.Audio.Controls.Interfaces
 {
     public interface IFader
     {
-        
+        float Position { get; } //TODO: float or double?
+
+        event EventHandler<float> PositionChanged;
     }
 }
\ No newline at end of file