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WPF Color Picker Construction Kit

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26 Dec 2010CPOL9 min read 117K   7.7K   76  
A WPF color picker (like Adobe's) constructed in a modular fashion for easy modification.
using System;
using System.Windows.Media;
using ColorPicker.ExtensionMethods;

namespace ColorPicker.ColorModels.CMYK
{
  public  class CMYKModel
  {


      #region Color

      public enum ECMYKComponent
      {
          Cyan = 0,
          Magenta = 1,
          Yellow = 2,
          Black =3
      }


      Color Color(double[] components)
      {
          return Color(components[0], components[1], components[2], components[3]);
      }

      public Color Color(double cyan, double magenta, double yellow, double black)
      {

          var red =   (255 - cyan - black  ).RestrictToByte()  ;
          var green = (255 - magenta - black).RestrictToByte();
          var blue =  (255 - yellow - black).RestrictToByte();
          return System.Windows.Media.Color.FromRgb( red, green, blue);

      }

       


      #endregion

      #region components

      private double MinComponent(Color color)
      {
          double c = 255 - color.R;
          double m = 255 - color.G ;
          double y = 255 - color.B;

         return   Math.Min(c, Math.Min(m, y));
      }

      public double CComponent(Color color , Double greedieness)
      {
          if (greedieness > 1 || greedieness < 0)
          {
              throw new Exception("Greedieness must be between 0 and 1");
          }
          var min = MinComponent(color);
          return 255 - color.R - min * greedieness ;
      }

      public double CComponent(Color color)
      {
          var min = MinComponent(color);
          return 255 - color.R - min;
      }

      public Double MComponent(Color color, Double greedieness)
      {
          if (greedieness > 1 || greedieness < 0)
          {
              throw new Exception("Greedieness must be between 0 and 1");
          }
          var min = MinComponent(color);
          return 255 - color.G - min*greedieness;
      }

      public Double MComponent(Color color)
      {
          var min = MinComponent(color);
          return 255 - color.G - min;
      }

      public Double YComponent(Color color, Double greedieness)
      {
          var min = MinComponent(color);
          return 255 - color.B - min * greedieness;
      }


      public Double YComponent(Color color)
      {
          var min = MinComponent(color);
          return 255 - color.B - min;
      }

      public Double KComponent(Color color, Double greedieness)
      {
          var min = MinComponent(color);
          return min*greedieness;  
      }


       public Double KComponent(Color color)
       {
           var min = MinComponent(color);
           return min;
       }

      #endregion
  }
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer (Senior)
United States United States
Written software for what seems like forever. I'm currenly infatuated with WPF. Hopefully my affections are returned.

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