SrgbColor.cs

/*
 * NanoXLSX is a small .NET library to generate and read XLSX (Microsoft Excel 2007 or newer) files in an easy and native way
 * Copyright Raphael Stoeckli © 2025
 * This library is licensed under the MIT License.
 * You find a copy of the license in project folder or on: http://opensource.org/licenses/MIT
 */
 
using System.Collections.Generic;
using System.Drawing;
using NanoXLSX.Interfaces;
using NanoXLSX.Utils;
 
namespace NanoXLSX.Colors
{

    public class SrgbColor : ITypedColor<string>
    {
        #region constants
        public const string DefaultSrgbColor = "FF000000";
        #endregion
 
        private string colorValue;

        public string ColorValue
        {
            get => colorValue;
            set
            {
                Validators.ValidateGenericColor(value, false);
                if (value.Length == 6)
                {
                   colorValue = "FF" + ParserUtils.ToUpper(value);
                }
                else
                {
                    colorValue = ParserUtils.ToUpper(value);
                }
            }
        }

        public string StringValue => colorValue;

        public SrgbColor()
        {
        }

        public SrgbColor(string rgb) : this()
        {
            ColorValue = rgb;
        }

        public override bool Equals(object obj)
        {
            return obj is SrgbColor color &&
                   ColorValue == color.ColorValue;
        }

        public override int GetHashCode()
        {
            return 800285905 + EqualityComparer<string>.Default.GetHashCode(ColorValue);
        }
    }
}