kxs-main/AppStart/Helper/MakeReferenceQrCodeService.cs

using System;
using System.Collections.Generic;
using System.Linq;
using MySystem.PxcModels;
using Library;
using LitJson;
using System.Drawing.Imaging;
using System.Drawing;

namespace MySystem
{
    public class MakeReferenceQrCodeService
    {
        public readonly static MakeReferenceQrCodeService Instance = new MakeReferenceQrCodeService();
        private MakeReferenceQrCodeService()
        { }

        public void Start(string uid)
        {
            try
            {
                int UserId = int.Parse(function.CheckInt(uid));
                if (UserId > 0)
                {
                    WebCMSEntities db = new WebCMSEntities();
                    Users user = db.Users.FirstOrDefault(m => m.Id == UserId);
                    if (user != null)
                    { 
                        string path = function.CreateQRCode2(ConfigurationManager.AppSettings["SourceHost"].ToString() + "p/user-inviteregist-1?Id=" + user.Id, function.MD5_16(user.Id.ToString() + "8745"), "/bsserver_com/static/ReferenceQrCode/");
                        path = path.Replace("//", "/");
                        string resultpath = "/bsserver_com/static/ReferenceQrCode/" + function.MD5_16(user.Id.ToString() + "8745") + "Pic.png";
                        MakeQRCode(function.getPath("/static/QrCodeBg.png"), function.getPath(path), function.getPath(resultpath), user);
                        resultpath = resultpath.Replace("bsserver_com/", "");
                        user.ReferenceQrCode = resultpath;
                        db.SaveChanges();
                        PxcModels.WebCMSEntities pxcdb = new PxcModels.WebCMSEntities();
                        PxcModels.Users tmpuser = pxcdb.Users.FirstOrDefault(m => m.Id == UserId);
                        if (tmpuser != null)
                        {
                            tmpuser.ReferenceQrCode = user.ReferenceQrCode;
                            pxcdb.SaveChanges();
                        }
                        pxcdb.Dispose();
                        PxcModels.Users editUser = BothdisDbconn.Instance.Get<PxcModels.Users>("Users:" + UserId);
                        if (editUser != null)
                        {
                            editUser.ReferenceQrCode = user.ReferenceQrCode;
                            BothdisDbconn.Instance.Set("Users:" + UserId, editUser);
                        }
                    }
                    db.Dispose();
                }
            }
            catch (Exception ex)
            {
                TendisDbconn.Instance.AddList("public_service", DateTime.Now.ToString() + ":" + ex.ToString());
            }
        }

        public void MakeQRCode(string sourcepath, string qrcode, string resultpath, Users us)
        {
            System.Drawing.Image image = System.Drawing.Image.FromFile(sourcepath);
            System.Drawing.Image qrcodepic = System.Drawing.Image.FromFile(qrcode);
            //获取图片宽高
            int Width = image.Width;
            int Height = image.Height;
            //创建一个位图文件
            Bitmap BitmapResult = new Bitmap(Width, Height, PixelFormat.Format24bppRgb);
            //在位图文件上填充一个矩形框
            Graphics Grp = Graphics.FromImage(BitmapResult);
            System.Drawing.Rectangle Rec = new System.Drawing.Rectangle(0, 0, Width, Height);
            //定义一个白色的画刷
            SolidBrush mySolidBrush = new SolidBrush(System.Drawing.Color.White);
            //Grp.Clear(Color.White);
            //将矩形框填充为白色
            // Grp.FillRectangle(mySolidBrush, Rec);
            //向矩形框内填充Img

            Grp.DrawImage(image, 0, 0, Rec, GraphicsUnit.Pixel);
            Grp.DrawImage(qrcodepic, 340, 605, 326, 326);

            //写字
            Font f = new Font("PingFang SC", 34);
            Font f2 = new Font("PingFang SC", 30);
            Brush b = new SolidBrush(Color.FromArgb(255, Color.White));
            Brush b2 = new SolidBrush(Color.FromArgb(255, Color.White));
            StringFormat sf = new StringFormat();
            sf.LineAlignment = StringAlignment.Center;
            sf.Alignment = StringAlignment.Center;
            Grp.DrawString(us.RealName, f, b, new RectangleF()
            {
                X = 0,
                Y = 980,
                Width = Width,
                Height = 50,
            }, sf);
            Grp.DrawString("推荐码：" + us.MakerCode, f2, b2, new RectangleF()
            {
                X = 0,
                Y = 1060,
                Width = Width,
                Height = 50,
            }, sf);
            //返回位图文件
            ImageCodecInfo jpgEncoder = GetEncoder(ImageFormat.Png);
            System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Quality;
            EncoderParameters myEncoderParameters = new EncoderParameters(1);
            EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, 50L);//这里的50L用来设置保存时的图片质量
            myEncoderParameters.Param[0] = myEncoderParameter;
            BitmapResult.Save(resultpath, jpgEncoder, myEncoderParameters);
            image.Dispose();
            qrcodepic.Dispose();
            Grp.Dispose();
            BitmapResult.Dispose();
        }

        private ImageCodecInfo GetEncoder(ImageFormat format)
        {
            ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
            foreach (ImageCodecInfo codec in codecs)
            {
                if (codec.FormatID == format.Guid)
                {
                    return codec;
                }
            }
            return null;
        }
    }
}