updated colorutils due to overflow issue

examples/csharp/OpenPixelControl/ColorUtils.cs

-using System;
-using System.Drawing;
-
-namespace OpenPixelControl
-{
-    public class HSLColor
-    {
-        // Private data members below are on scale 0-1
-        // They are scaled for use externally based on scale
-        private double hue = 1.0;
-        private double saturation = 1.0;
-        private double luminosity = 1.0;
-
-        private const double scale = 240.0;
-
-        public double Hue
-        {
-            get { return hue * scale; }
-            set { hue = CheckRange(value / scale); }
-        }
-        public double Saturation
-        {
-            get { return saturation * scale; }
-            set { saturation = CheckRange(value / scale); }
-        }
-        public double Luminosity
-        {
-            get { return luminosity * scale; }
-            set { luminosity = CheckRange(value / scale); }
-        }
-
-        private double CheckRange(double value)
-        {
-            if (value < 0.0)
-                value = 0.0;
-            else if (value > 1.0)
-                value = 1.0;
-            return value;
-        }
-
-        public override string ToString()
-        {
-            return String.Format("H: {0:#0.##} S: {1:#0.##} L: {2:#0.##}", Hue, Saturation, Luminosity);
-        }
-
-        public string ToRGBString()
-        {
-            Color color = (Color)this;
-            return String.Format("R: {0:#0.##} G: {1:#0.##} B: {2:#0.##}", color.R, color.G, color.B);
-        }
-
-        public Pixel ToRgbPixel()
-        {
-            Color color = (Color)this;
-            return new Pixel((byte)(color.R - 1), (byte)(color.G - 1), (byte)(color.B - 1));
-        }
-
-        #region Casts to/from System.Drawing.Color
-        public static implicit operator Color(HSLColor hslColor)
-        {
-            double r = 0, g = 0, b = 0;
-            if (hslColor.luminosity != 0)
-            {
-                if (hslColor.saturation == 0)
-                    r = g = b = hslColor.luminosity;
-                else
-                {
-                    double temp2 = GetTemp2(hslColor);
-                    double temp1 = 2.0 * hslColor.luminosity - temp2;
-
-                    r = GetColorComponent(temp1, temp2, hslColor.hue + 1.0 / 3.0);
-                    g = GetColorComponent(temp1, temp2, hslColor.hue);
-                    b = GetColorComponent(temp1, temp2, hslColor.hue - 1.0 / 3.0);
-                }
-            }
-            return Color.FromArgb((int)(255 * r), (int)(255 * g), (int)(255 * b));
-        }
-
-        private static double GetColorComponent(double temp1, double temp2, double temp3)
-        {
-            temp3 = MoveIntoRange(temp3);
-            if (temp3 < 1.0 / 6.0)
-                return temp1 + (temp2 - temp1) * 6.0 * temp3;
-            else if (temp3 < 0.5)
-                return temp2;
-            else if (temp3 < 2.0 / 3.0)
-                return temp1 + ((temp2 - temp1) * ((2.0 / 3.0) - temp3) * 6.0);
-            else
-                return temp1;
-        }
-        private static double MoveIntoRange(double temp3)
-        {
-            if (temp3 < 0.0)
-                temp3 += 1.0;
-            else if (temp3 > 1.0)
-                temp3 -= 1.0;
-            return temp3;
-        }
-        private static double GetTemp2(HSLColor hslColor)
-        {
-            double temp2;
-            if (hslColor.luminosity < 0.5)  //<=??
-                temp2 = hslColor.luminosity * (1.0 + hslColor.saturation);
-            else
-                temp2 = hslColor.luminosity + hslColor.saturation - (hslColor.luminosity * hslColor.saturation);
-            return temp2;
-        }
-
-        public static implicit operator HSLColor(Color color)
-        {
-            HSLColor hslColor = new HSLColor();
-            hslColor.hue = color.GetHue() / 360.0; // we store hue as 0-1 as opposed to 0-360 
-            hslColor.luminosity = color.GetBrightness();
-            hslColor.saturation = color.GetSaturation();
-            return hslColor;
-        }
-        #endregion
-
-        public void SetRGB(int red, int green, int blue)
-        {
-            HSLColor hslColor = (HSLColor)Color.FromArgb(red, green, blue);
-            this.hue = hslColor.hue;
-            this.saturation = hslColor.saturation;
-            this.luminosity = hslColor.luminosity;
-        }
-
-        public HSLColor() { }
-        public HSLColor(Color color)
-        {
-            SetRGB(color.R, color.G, color.B);
-        }
-        public HSLColor(int red, int green, int blue)
-        {
-            SetRGB(red, green, blue);
-        }
-        public HSLColor(double hue, double saturation, double luminosity)
-        {
-            this.Hue = hue;
-            this.Saturation = saturation;
-            this.Luminosity = luminosity;
-        }
-
-    }
+using System;
+using System.Drawing;
+
+namespace OpenPixelControl
+{
+    public class HSLColor
+    {
+        // Private data members below are on scale 0-1
+        // They are scaled for use externally based on scale
+        private double hue = 1.0;
+        private double saturation = 1.0;
+        private double luminosity = 1.0;
+
+        private const double scale = 240.0;
+
+        public double Hue
+        {
+            get { return hue * scale; }
+            set { hue = CheckRange(value / scale); }
+        }
+        public double Saturation
+        {
+            get { return saturation * scale; }
+            set { saturation = CheckRange(value / scale); }
+        }
+        public double Luminosity
+        {
+            get { return luminosity * scale; }
+            set { luminosity = CheckRange(value / scale); }
+        }
+
+        private double CheckRange(double value)
+        {
+            if (value < 0.0)
+                value = 0.0;
+            else if (value > 1.0)
+                value = 1.0;
+            return value;
+        }
+
+        public override string ToString()
+        {
+            return String.Format("H: {0:#0.##} S: {1:#0.##} L: {2:#0.##}", Hue, Saturation, Luminosity);
+        }
+
+        public string ToRGBString()
+        {
+            Color color = (Color)this;
+            return String.Format("R: {0:#0.##} G: {1:#0.##} B: {2:#0.##}", color.R, color.G, color.B);
+        }
+
+        public Pixel ToRgbPixel()
+        {
+            Color color = (Color)this;
+            return new Pixel((byte)(color.R), (byte)(color.G), (byte)(color.B));
+        }
+
+        #region Casts to/from System.Drawing.Color
+        public static implicit operator Color(HSLColor hslColor)
+        {
+            double r = 0, g = 0, b = 0;
+            if (hslColor.luminosity != 0)
+            {
+                if (hslColor.saturation == 0)
+                    r = g = b = hslColor.luminosity;
+                else
+                {
+                    double temp2 = GetTemp2(hslColor);
+                    double temp1 = 2.0 * hslColor.luminosity - temp2;
+
+                    r = GetColorComponent(temp1, temp2, hslColor.hue + 1.0 / 3.0);
+                    g = GetColorComponent(temp1, temp2, hslColor.hue);
+                    b = GetColorComponent(temp1, temp2, hslColor.hue - 1.0 / 3.0);
+                }
+            }
+            return Color.FromArgb((int)(255 * r), (int)(255 * g), (int)(255 * b));
+        }
+
+        private static double GetColorComponent(double temp1, double temp2, double temp3)
+        {
+            temp3 = MoveIntoRange(temp3);
+            if (temp3 < 1.0 / 6.0)
+                return temp1 + (temp2 - temp1) * 6.0 * temp3;
+            else if (temp3 < 0.5)
+                return temp2;
+            else if (temp3 < 2.0 / 3.0)
+                return temp1 + ((temp2 - temp1) * ((2.0 / 3.0) - temp3) * 6.0);
+            else
+                return temp1;
+        }
+        private static double MoveIntoRange(double temp3)
+        {
+            if (temp3 < 0.0)
+                temp3 += 1.0;
+            else if (temp3 > 1.0)
+                temp3 -= 1.0;
+            return temp3;
+        }
+        private static double GetTemp2(HSLColor hslColor)
+        {
+            double temp2;
+            if (hslColor.luminosity < 0.5)  //<=??
+                temp2 = hslColor.luminosity * (1.0 + hslColor.saturation);
+            else
+                temp2 = hslColor.luminosity + hslColor.saturation - (hslColor.luminosity * hslColor.saturation);
+            return temp2;
+        }
+
+        public static implicit operator HSLColor(Color color)
+        {
+            HSLColor hslColor = new HSLColor();
+            hslColor.hue = color.GetHue() / 360.0; // we store hue as 0-1 as opposed to 0-360
+            hslColor.luminosity = color.GetBrightness();
+            hslColor.saturation = color.GetSaturation();
+            return hslColor;
+        }
+        #endregion
+
+        public void SetRGB(int red, int green, int blue)
+        {
+            HSLColor hslColor = (HSLColor)Color.FromArgb(red, green, blue);
+            this.hue = hslColor.hue;
+            this.saturation = hslColor.saturation;
+            this.luminosity = hslColor.luminosity;
+        }
+
+        public HSLColor() { }
+        public HSLColor(Color color)
+        {
+            SetRGB(color.R, color.G, color.B);
+        }
+        public HSLColor(int red, int green, int blue)
+        {
+            SetRGB(red, green, blue);
+        }
+        public HSLColor(double hue, double saturation, double luminosity)
+        {
+            this.Hue = hue;
+            this.Saturation = saturation;
+            this.Luminosity = luminosity;
+        }
+
+    }
 }
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