4C/GummingCommon/Services/PaintInfoService.cs

using GummingCommon;
using System.IO;
using System.Xml.Serialization;

namespace GummingCommon
{
    public class PaintInfoService
    {
        public BasePaintInfo PaintInfo { get; private set; }

        static PaintInfoService _instance;
        static object _lockFlg = new object();
        public static PaintInfoService Instance()
        {
            if (_instance == null)
            {
                lock (_lockFlg)
                {
                    if (_instance == null)
                    {
                        _instance = new PaintInfoService();
                    }
                }
            }
            return _instance;
        }

        private PaintInfoService()
        {
            PaintInfo = new BasePaintInfo();
        }

        public void Save()
        {
            if (!Directory.Exists(SystemConst.SystemFolder))
            {
                Directory.CreateDirectory(SystemConst.SystemFolder);
            }
            XmlSerializer serializer = new XmlSerializer(typeof(BasePaintInfo));
            using (FileStream fs = new FileStream(SystemConst.PaintFile, FileMode.Create))
            {
                serializer.Serialize(fs, PaintInfo);
            }
        }

        public void Load()
        {
            if (File.Exists(SystemConst.PaintFile))
            {
                XmlSerializer serializer = new XmlSerializer(typeof(BasePaintInfo));
                using (FileStream fs = new FileStream(SystemConst.PaintFile, FileMode.Open))
                {
                    object obj = serializer.Deserialize(fs);
                    if (obj != null)
                    {
                        PaintInfo = (BasePaintInfo)obj;
                    }
                }
            }
        }
    }
}