Added rectangle KeyGroup

Devices/Keyboard/Keys/RectangleKeyGroup.cs

@@ -0,0 +1,47 @@
+using System.Drawing;
+using System.Linq;
+using CUE.NET.Devices.Keyboard.Enums;
+using CUE.NET.Helper;
+
+namespace CUE.NET.Devices.Keyboard.Keys
+{
+    public class RectangleKeyGroup : BaseKeyGroup
+    {
+        #region Properties & Fields
+
+        public RectangleF RequestedRectangle { get; }
+        public float MinOverlayPercentage { get; }
+
+        #endregion
+
+        #region Constructors
+
+        public RectangleKeyGroup(CorsairKeyboard keyboard, CorsairKeyboardKeyId fromKey, CorsairKeyboardKeyId toKey, float minOverlayPercentage = 0.5f)
+            : this(keyboard, keyboard[fromKey], keyboard[toKey], minOverlayPercentage)
+        { }
+
+        public RectangleKeyGroup(CorsairKeyboard keyboard, CorsairKey fromKey, CorsairKey toKey, float minOverlayPercentage = 0.5f)
+            : this(keyboard, RectangleHelper.CreateRectangleFromRectangles(fromKey.KeyRectangle, toKey.KeyRectangle), minOverlayPercentage)
+        { }
+
+        public RectangleKeyGroup(CorsairKeyboard keyboard, PointF fromPoint, PointF toPoint, float minOverlayPercentage = 0.5f)
+            : this(keyboard, RectangleHelper.CreateRectangleFromPoints(fromPoint, toPoint), minOverlayPercentage)
+        { }
+
+        public RectangleKeyGroup(CorsairKeyboard keyboard, RectangleF requestedRectangle, float minOverlayPercentage = 0.5f)
+            : base(keyboard)
+        {
+            this.RequestedRectangle = requestedRectangle;
+            this.MinOverlayPercentage = minOverlayPercentage;
+
+            foreach (CorsairKey key in Keyboard.Where(x => RectangleHelper.CalculateIntersectPercentage(x.KeyRectangle, requestedRectangle) >= minOverlayPercentage))
+                Keys.Add(key);
+        }
+
+        #endregion
+
+        #region Methods
+
+        #endregion
+    }
+}