合并图片代码,CSharp代码库,德仔网

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代码分类
【CSharp】合并图片
作者:Dezai.CN / 发布于2013/2/20/ 572
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Drawing;
using System.Collections;

namespace ZFPDF
{
    class Synthetic_images
    {
        /// <summary>  
        /// 合成图片  
        /// </summary>  
        /// <param name="fileFoldUrl">文件夹url</param>  
        /// <param name="fileName">文件名</param>  
        /// <param name="_alMemo">要合成的每张图片的大小数组</param>  
        /// <param name="_width">合成后的宽度</param>  
        /// <param name="_height">合成后的高度</param>  
        public String tphc(ArrayList _alMemo, int _width, int _height)//(string fileFoldUrl, string fileName, ArrayList _alMemo, int _width, int _height)
        {
            byte[] tp = get_tphcMemo(_alMemo, _width, _height);

            return this.view_picture(tp);//(fileFoldUrl, fileName, tp);
        }

        /// <summary>  
        /// 获取合成图片后的字节大小  
        /// </summary>  
        /// <param name="_al">要合成的每张图片的大小数组</param>  
        /// <param name="_width">合成后的宽度</param>  
        /// <param name="_height">合成后的高度</param>  
        /// <returns>byte[]</returns>  
        private byte[] get_tphcMemo(ArrayList _al, int _width, int _height)
        {
            //byte[]  
            byte[] tp = null;

            //MemoryStream  
            MemoryStream ms = null;
            MemoryStream imgms = null;

            //Bitmap  
            Bitmap bmp = null;

            //image  
            System.Drawing.Image img = null;

            //Graphics  
            Graphics gp = null;

            try
            {
                ms = new MemoryStream();

                bmp = new Bitmap(_width, _height);

                bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                img = System.Drawing.Image.FromStream(ms);
                int i_top = 0;

                for (int pic_i = 0; pic_i < _al.Count; pic_i++)
                {
                    gp = Graphics.FromImage(img);
                    MemoryStream ms1 = new MemoryStream(((byte[])_al[pic_i]));

                    System.Drawing.Image img1 = System.Drawing.Image.FromStream(ms1);

                    Bitmap bmp1 = new Bitmap(img1);

                    Rectangle rtl = new Rectangle(0, i_top, bmp1.Width, bmp1.Height);

                    gp.DrawImage(bmp1, rtl, 0, 0, bmp1.Width, bmp1.Height, GraphicsUnit.Pixel);

                    i_top += bmp1.Height;

                    ms1.Dispose();

                    img1.Dispose();

                    bmp1.Dispose();

                    gp.Dispose();
                }
                imgms = new MemoryStream();

                img.Save(imgms, img.RawFormat);

                imgms.Position = 0;

                tp = new byte[imgms.Length];

                imgms.Read(tp, 0, Convert.ToInt32(imgms.Length));

                return tp;
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }
        /// <summary>  
        /// 保存图片  
        /// </summary>  
        /// <param name="fileFoldUrl">文件夹url</param>  
        /// <param name="fileName">文件名</param>  
        /// <param name="zp">文件的字节数组</param>  
        public String view_picture(byte[] zp)//(string fileFoldUrl, string fileName, byte[] zp)
        {
            String fileFoldUrl = System.Environment.CurrentDirectory;
            String fileName = "imageLX";
            MemoryStream ms = new MemoryStream(zp);
            Bitmap btp = new Bitmap(ms);
            DirectoryInfo dti = new DirectoryInfo(fileFoldUrl);
            string fileUrl = fileFoldUrl + "\\" + fileName + ".jpg";
            btp.Save(fileUrl);
            return fileUrl;

        }
    }
}
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