using System;

using System.Collections;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Services;

using System.Web.Services.Protocols;

using System.Xml.Linq;

using System.IO;

using System.Drawing;

namespace WebAppTest

{

    /// <summary>

    /// $codebehindclassname$ 的摘要说明

    /// </summary>

    [WebService(Namespace = "http://tempuri.org/")]

    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

    public class upload : IHttpHandler

    {

        public void ProcessRequest(HttpContext context)

        {

            context.Response.ContentType = "text/plain";

            HttpPostedFile hpf =  context.Request.Files["upload"];

            if (hpf.ContentLength > )

            {

                string path = context.Server.MapPath("~/resource/image/");

                if (!Directory.Exists(path))

                {

                    Directory.CreateDirectory(path);

                }

                string filename = hpf.FileName;

                string newFilename = DateTime.Now.ToFileTime() + Path.GetExtension(filename);

                string fullname = path + newFilename;

                hpf.SaveAs(fullname);

                string waterMarkFileName = context.Server.MapPath("~/resource/image/logo.png");

                AddWaterMark(fullname, waterMarkFileName);

                context.Response.Write("upload success");

            }

            else

            {

                context.Response.Write("select file");

            }

        }

        public bool IsReusable

        {

            get

            {

                return false;

            }

        }

        /// <summary>

        /// 加上水印

        /// </summary>

        /// <param name="fullname">需要加上水印图片的全路径</param>

        /// <param name="waterMarkFileName">水印图片的全路径</param>

        public void AddWaterMark(string fullname,string waterMarkFileName)

        {

            //D:\projects\VS2008\WebAppTest\WebAppTest\resource\image   结尾没有'\'

            string dicName = Path.GetDirectoryName(fullname);

            string newFilename = DateTime.Now.ToFileTime() + Path.GetExtension(fullname);

            string newFullname = dicName + "/" + newFilename;

            Bitmap bmp = new Bitmap(fullname);

            int width = bmp.Width;

            int height = bmp.Height;

            Bitmap logo = new Bitmap(waterMarkFileName);

            //设置透明

            logo.MakeTransparent();

            using(Graphics g = Graphics.FromImage(bmp))

            {

                //将图片加上边框

                g.DrawRectangle(new Pen(Color.Green,),new Rectangle(,,width,height));

                //加上水印

                g.DrawImage(logo,width--logo.Width,height--logo.Height);

            }

            bmp.Save(newFullname);

            bmp.Dispose();

            logo.Dispose();

        }

    }

}