using System;
using System.Collections.Generic;
using System.Drawing;
using GeoSigmaDrawLib;

namespace GeoSigma.SigmaDrawerStyle
{
    /// <summary>
    /// 曲线样式管理类，说是管理，其实目前仅处理获取
    /// </summary>
    public class WellCurveStyleManager
    {
        private static readonly Lazy<WellCurveStyleManager> LazyInstance =
            new Lazy<WellCurveStyleManager>(() => new WellCurveStyleManager());


        /// <summary>
        /// 单例
        /// </summary>
        public static WellCurveStyleManager Instance => LazyInstance.Value;

        private WellCurveStyleManager()
        {
        }

        public string[] GetNames()
        {
            if (!GeoSigmaWellPoleXY.GetCurveFillSymbolNames(out string[] names))
            {
                return names;
            }

            return new string[] { };
        }

        /// <summary>
        /// 获取曲线样式
        /// </summary>
        /// <param name="name">曲线样式名称</param>
        /// <param name="width">width</param>
        /// <param name="height">height</param>
        /// <returns>曲线样式</returns>
        public Bitmap DrawStyle(string name, int width, int height)
        {
            var bitmap = new Bitmap(width, height);
            Graphics graphics = Graphics.FromImage(bitmap);
            IntPtr hdc = graphics.GetHdc();
            if (GeoSigmaWellPoleXY.GetDrawCurveFillSymbol(name, hdc, width, height))
            {
                return bitmap;
            }
            graphics.ReleaseHdc();

            return null;
        }
    }
}