Initial commit

Delcom/StoplightIndicator.cs

@@ -0,0 +1,130 @@
+using System;
+
+using Common.Extensions;
+
+namespace WorkIndicator.Delcom
+{
+    public class StoplightIndicator : IDisposable
+    {
+        public enum Light
+        {
+            Green,
+            Yellow,
+            Red
+        }
+
+        public enum LightState
+        {
+            Off,
+            On,
+            Blink
+        }
+
+        private readonly Delcom _delcom;
+
+        private LightState _green = LightState.Off;
+        private LightState _yellow = LightState.Off;
+        private LightState _red = LightState.Off;
+
+        public StoplightIndicator()
+        {
+            _delcom = new Delcom();
+            _delcom.Open();
+
+            SetLights(_red, _yellow, _green);
+        }
+
+        public void Dispose()
+        {
+            _delcom.Close();
+        }
+
+        public Delcom Device
+        {
+            get { return _delcom; }
+        }
+
+        public void GetLights(out LightState red, out LightState yellow, out LightState green)
+        {
+            red = _red;
+            yellow = _yellow;
+            green = _green;
+        }
+
+        public LightState GetLight(Light light)
+        {
+            switch (light)
+            {
+                case Light.Red:
+                    return _red;
+
+                case Light.Yellow:
+                    return _yellow;
+
+                case Light.Green:
+                    return _green;
+
+                default:
+                    throw new ArgumentOutOfRangeException("light");
+            }
+        }
+
+        public void SetLights(LightState red, LightState yellow, LightState green)
+        {
+            int port1 = 0;
+
+            _red = red;
+            _yellow = yellow;
+            _green = green;
+
+            port1 = port1.SetBitValue((int) Light.Green, green == LightState.Off);
+            port1 = port1.SetBitValue((int) Light.Yellow, yellow == LightState.Off);
+            port1 = port1.SetBitValue((int) Light.Red, red == LightState.Off);
+
+            _delcom.WritePorts(0, port1);
+
+            int blinkEnable = 0;
+            int blinkDisable = 0;
+
+            if (red == LightState.Blink)
+                blinkEnable = blinkEnable.SetBitValue((int) Light.Red, true);
+            else
+                blinkDisable = blinkDisable.SetBitValue((int) Light.Red, true);
+
+            if (yellow == LightState.Blink)
+                blinkEnable = blinkEnable.SetBitValue((int) Light.Yellow, true);
+            else
+                blinkDisable = blinkDisable.SetBitValue((int) Light.Yellow, true);
+
+            if (green == LightState.Blink)
+                blinkEnable = blinkEnable.SetBitValue((int) Light.Green, true);
+            else
+                blinkDisable = blinkDisable.SetBitValue((int) Light.Green, true);
+
+            _delcom.WriteBlink(blinkDisable, blinkEnable);
+        }
+
+        public void SetLight(Light light, LightState state)
+        {
+            switch (light)
+            {
+                case Light.Red:
+                    _red = state;
+                    break;
+
+                case Light.Yellow:
+                    _yellow = state;
+                    break;
+
+                case Light.Green:
+                    _green = state;
+                    break;
+
+                default:
+                    throw new ArgumentOutOfRangeException("light");
+            }
+
+            SetLights(_red, _yellow, _green);
+        }
+    }
+}