Changed logitech devices to better fit the sdk-design. This allows to easily plug in new devices as soon as the hid-id is known

RGB.NET.Devices.Logitech/PerKey/LogitechPerKeyRGBDevice.cs

@@ -0,0 +1,73 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using RGB.NET.Core;
+using RGB.NET.Devices.Logitech.Native;
+
+namespace RGB.NET.Devices.Logitech.PerKey
+{
+    /// <inheritdoc />
+    /// <summary>
+    /// Represents a logitech per-key-lightable device.
+    /// </summary>
+    public class LogitechPerKeyRGBDevice : LogitechRGBDevice
+    {
+        #region Properties & Fields
+
+        /// <summary>
+        /// Gets information about the <see cref="LogitechPerKeyRGBDevice"/>.
+        /// </summary>
+        public LogitechRGBDeviceInfo PerKeyDeviceInfo { get; }
+
+        #endregion
+
+        #region Constructors
+
+        /// <inheritdoc />
+        /// <summary>
+        /// Initializes a new instance of the <see cref="T:RGB.NET.Devices.Logitech.LogitechPerKeyRGBDevice" /> class.
+        /// </summary>
+        /// <param name="info">The specific information provided by logitech for the per-key-lightable device</param>
+        internal LogitechPerKeyRGBDevice(LogitechRGBDeviceInfo info)
+            : base(info)
+        {
+            this.PerKeyDeviceInfo = info;
+        }
+
+        #endregion
+
+        #region Methods
+
+        /// <inheritdoc />
+        protected override void UpdateLeds(IEnumerable<Led> ledsToUpdate)
+        {
+            List<Led> leds = ledsToUpdate.Where(x => x.Color.A > 0).ToList();
+            if (leds.Count <= 0) return;
+
+            _LogitechGSDK.LogiLedSetTargetDevice(LogitechDeviceCaps.PerKeyRGB);
+
+            byte[] bitmap = null;
+            foreach (Led led in leds)
+            {
+                // DarthAffe 26.03.2017: This is only needed since update by name doesn't work as expected for all keys ...
+                if (BitmapMapping.BitmapOffset.TryGetValue(((LogitechLedId)led.Id).LedId, out int bitmapOffset))
+                {
+                    if (bitmap == null)
+                        bitmap = BitmapMapping.CreateBitmap();
+
+                    BitmapMapping.SetColor(ref bitmap, bitmapOffset, led.Color);
+                }
+                else
+                    _LogitechGSDK.LogiLedSetLightingForKeyWithKeyName((int)((LogitechLedId)led.Id).LedId,
+                                                                      (int)Math.Round(led.Color.RPercent * 100),
+                                                                      (int)Math.Round(led.Color.GPercent * 100),
+                                                                      (int)Math.Round(led.Color.BPercent * 100));
+            }
+
+            if (bitmap != null)
+                _LogitechGSDK.LogiLedSetLightingFromBitmap(bitmap);
+        }
+
+        #endregion
+    }
+}