using System;

namespace Devcorp.Controls.Design
{
	/// <summary>
	/// Structure to define CMYK.
	/// </summary>
	public struct CMYK
	{
		/// <summary>
		/// Gets an empty CMYK structure;
		/// </summary>
		public readonly static CMYK Empty = new CMYK();

		#region Fields
		private double c;
		private double m;
		private double y;
		private double k;
		#endregion

		#region Operators
		public static bool operator ==(CMYK item1, CMYK item2) {
			return (
				item1.Cyan == item2.Cyan
				&& item1.Magenta == item2.Magenta
				&& item1.Yellow == item2.Yellow
				&& item1.Black == item2.Black
				);
		}

		public static bool operator !=(CMYK item1, CMYK item2) {
			return (
				item1.Cyan != item2.Cyan
				|| item1.Magenta != item2.Magenta
				|| item1.Yellow != item2.Yellow
				|| item1.Black != item2.Black
				);
		}


		#endregion

		#region Accessors
		public double Cyan {
			get => c;
			set {
				c = value;
				c = (c > 1) ? 1 : ((c < 0) ? 0 : c);
			}
		}

		public double Magenta {
			get => m;
			set {
				m = value;
				m = (m > 1) ? 1 : ((m < 0) ? 0 : m);
			}
		}

		public double Yellow {
			get => y;
			set {
				y = value;
				y = (y > 1) ? 1 : ((y < 0) ? 0 : y);
			}
		}

		public double Black {
			get => k;
			set {
				k = value;
				k = (k > 1) ? 1 : ((k < 0) ? 0 : k);
			}
		}
		#endregion

		/// <summary>
		/// Creates an instance of a CMYK structure.
		/// </summary>
		public CMYK(double c, double m, double y, double k) {
			this.c = c;
			this.m = m;
			this.y = y;
			this.k = k;
		}

		#region Methods
		public override bool Equals(Object obj) {
			if (obj == null || GetType() != obj.GetType()) return false;

			return (this == (CMYK)obj);
		}

		public override int GetHashCode() {
			return Cyan.GetHashCode() ^ Magenta.GetHashCode() ^ Yellow.GetHashCode() ^ Black.GetHashCode();
		}

		#endregion
	}
}