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C#制作条形码代码

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    发表于 2015-4-14 09:20:44 | 显示全部楼层 |阅读模式

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    转载,因楼主最近需要做条形码,所以找到以下代码共享,代码未经测试
    [C#] 纯文本查看 复制代码
    using System;
    using System.Collections.Generic;
    using System.Web;
    using System.Drawing;
    using System.Drawing.Imaging;
    using System.Drawing.Drawing2D;
    using System.Drawing.Text;
    using System.Drawing.Design;
    using System.IO;
    using System.Collections;
    
    namespace Public.Equipment
    {
        /// <summary>
        ///绘制条形码
        /// </summary>
        public class DrawingBarCode
        {
            public DrawingBarCode()
            {
                //
                //TODO: 在此处添加构造函数逻辑
                //
            }
    
            #region 根据字体产生条形码
            /// <summary>
            /// 根据条形码绘制图片
            /// </summary>
            /// <param name="strNumber">条形码</param>
            public void DrawingBarCode(string strNumber)
            {
                PrivateFontCollection fonts = new PrivateFontCollection();
                //39带数字
                //fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/V100010_.TTF");
                //FontFamily ff = new FontFamily("C39HrP48DlTt", fonts);
    
                //39码
                strNumber = "*" + strNumber + "*";
                fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/FREE3OF9X.TTF");
                FontFamily ff = new FontFamily("Free 3 of 9 Extended", fonts);
    
                //接近条形码
                //fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/V100014_.TTF");
                //FontFamily ff = new FontFamily("C39P24DlTt", fonts);
                Font font = new Font(ff, 12);
    
                //设置图片大小
                Image img = new Bitmap(1, 1);
                Graphics g = Graphics.FromImage(img);
                SizeF fontSize = g.MeasureString(strNumber, font);
                int intWidth = Convert.ToInt32(fontSize.Width);
                int intHeight = Convert.ToInt32(fontSize.Height);
                g.Dispose();
                img.Dispose();
    
                img = new Bitmap(intWidth, intHeight);
                g = Graphics.FromImage(img);
                g.Clear(Color.White);
                g.CompositingQuality = CompositingQuality.HighQuality;
                g.SmoothingMode = SmoothingMode.HighQuality;
                g.DrawString(strNumber, font, Brushes.Black, 0, 0);
                MemoryStream stream = new MemoryStream();
                img.Save(stream, ImageFormat.Jpeg);
                HttpContext.Current.Response.ClearContent();
                HttpContext.Current.Response.ContentType = "image/Jpeg";
                HttpContext.Current.Response.BinaryWrite(stream.ToArray());
                g.Dispose();
                img.Dispose();
            }
    
            /// <summary>
            /// 根据条形码绘制图片
            /// </summary>
            /// <param name="strNumber">条形码</param>
            /// <param name="intFontSize">字体大小</param>
            public void DrawingBarCode(string strNumber,int intFontSize)
            {
    
                PrivateFontCollection fonts = new PrivateFontCollection();
                //39带数字
                //fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/V100010_.TTF");
                //FontFamily ff = new FontFamily("C39HrP48DlTt", fonts);
    
                //39码
                 strNumber = "*" + strNumber + "*";
                fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/FREE3OF9X.TTF");
                FontFamily ff = new FontFamily("Free 3 of 9 Extended", fonts);
    
                //接近条形码
                //fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/V100014_.TTF");
                //FontFamily ff = new FontFamily("C39P24DlTt", fonts);
                Font font = new Font(ff, intFontSize);
    
                //设置图片大小
                Image img = new Bitmap(1, 1);
                Graphics g = Graphics.FromImage(img);
                SizeF fontSize = g.MeasureString(strNumber, font);
                int intWidth = Convert.ToInt32(fontSize.Width);
                int intHeight = Convert.ToInt32(fontSize.Height);
                g.Dispose();
                img.Dispose();
    
                img = new Bitmap(intWidth, intHeight);
                g = Graphics.FromImage(img);
                g.Clear(Color.White);
                g.CompositingQuality = CompositingQuality.HighQuality;
                g.SmoothingMode = SmoothingMode.HighQuality;
                g.DrawString(strNumber, font, Brushes.Black, 0, 0);
                MemoryStream stream = new MemoryStream();
                img.Save(stream, ImageFormat.Jpeg);
                HttpContext.Current.Response.ClearContent();
                HttpContext.Current.Response.ContentType = "image/Jpeg";
                HttpContext.Current.Response.BinaryWrite(stream.ToArray());
                g.Dispose();
                img.Dispose();
            }
            #endregion
    
            #region 绘制Code39码
    
            /// <summary>
            /// 根据条形码绘制图片
            /// </summary>
            /// <param name="strNumber">条形码</param>
            public void DrawingBarCode39(string strNumber,int intFontSize,bool WithStart)
            {
                ViewFont = new Font("宋体", intFontSize);
                Image img = GetCodeImage(strNumber, Code39Model.Code39Normal, WithStart);
                MemoryStream stream = new MemoryStream();
                img.Save(stream, ImageFormat.Jpeg);
                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.ClearContent();
                HttpContext.Current.Response.BufferOutput = true;
                HttpContext.Current.Response.ContentType = "image/Jpeg";
                HttpContext.Current.Response.BinaryWrite(stream.GetBuffer());
                HttpContext.Current.Response.Flush();
            }
    
            private Hashtable m_Code39 = new Hashtable();
    
            private byte m_Magnify = 0;
            /// <summary> 
            /// 放大倍数 
            /// </summary> 
            public byte Magnify { get { return m_Magnify; } set { m_Magnify = value; } }
    
            private int m_Height = 40;
            /// <summary> 
            /// 图形高 
            /// </summary> 
            public int Height { get { return m_Height; } set { m_Height = value; } }
    
            private Font m_ViewFont = null;
            /// <summary> 
            /// 字体大小 
            /// </summary> 
            public Font ViewFont { get { return m_ViewFont; } set { m_ViewFont = value; } }
    
            /**
             Code39码的编码规则是: 
    
               1、 每五条线表示一个字符; 
    
               2、 粗线表示1,细线表示0; 
    
               3、 线条间的间隙宽的表示1,窄的表示0; 
    
               4、 五条线加上它们之间的四条间隙就是九位二进制编码,而且这九位中必定有三位是1,所以称为39码; 
    
               5、 条形码的首尾各一个*标识开始和结束
    
             */
            public DrawingBarCode(Boolean IsCode39)
            {
    
                m_Code39.Add("A", "1101010010110");
                m_Code39.Add("B", "1011010010110");
                m_Code39.Add("C", "1101101001010");
                m_Code39.Add("D", "1010110010110");
                m_Code39.Add("E", "1101011001010");
                m_Code39.Add("F", "1011011001010");
                m_Code39.Add("G", "1010100110110");
                m_Code39.Add("H", "1101010011010");
                m_Code39.Add("I", "1011010011010");
                m_Code39.Add("J", "1010110011010");
                m_Code39.Add("K", "1101010100110");
                m_Code39.Add("L", "1011010100110");
                m_Code39.Add("M", "1101101010010");
                m_Code39.Add("N", "1010110100110");
                m_Code39.Add("O", "1101011010010");
                m_Code39.Add("P", "1011011010010");
                m_Code39.Add("Q", "1010101100110");
                m_Code39.Add("R", "1101010110010");
                m_Code39.Add("S", "1011010110010");
                m_Code39.Add("T", "1010110110010");
                m_Code39.Add("U", "1100101010110");
                m_Code39.Add("V", "1001101010110");
                m_Code39.Add("W", "1100110101010");
                m_Code39.Add("X", "1001011010110");
                m_Code39.Add("Y", "1100101101010");
                m_Code39.Add("Z", "1001101101010");
                m_Code39.Add("0", "1010011011010");
                m_Code39.Add("1", "1101001010110");
                m_Code39.Add("2", "1011001010110");
                m_Code39.Add("3", "1101100101010");
                m_Code39.Add("4", "1010011010110");
                m_Code39.Add("5", "1101001101010");
                m_Code39.Add("6", "1011001101010");
                m_Code39.Add("7", "1010010110110");
                m_Code39.Add("8", "1101001011010");
                m_Code39.Add("9", "1011001011010");
                m_Code39.Add("+", "1001010010010");
                m_Code39.Add("-", "1001010110110");
                m_Code39.Add("*", "1001011011010");
                m_Code39.Add("/", "1001001010010");
                m_Code39.Add("%", "1010010010010");
                m_Code39.Add("$", "1001001001010");
                m_Code39.Add(".", "1100101011010");
                m_Code39.Add(" ", "1001101011010");
    
            }
    
            public enum Code39Model
            {
                /// <summary> 
                /// 基本类别 1234567890ABC 
                /// </summary> 
                Code39Normal,
                /// <summary> 
                /// 全ASCII方式 +A+B 来表示小写 
                /// </summary> 
                Code39FullAscII
            }
            /// <summary> 
            /// 获得条码图形 
            /// </summary> 
            /// <param name="p_Text">文字信息</param> 
            /// <param name="p_Model">类别</param> 
            /// <param name="p_StarChar">是否增加前后*号</param> 
            /// <returns>图形</returns> 
            public Bitmap GetCodeImage(string p_Text, Code39Model p_Model, bool p_StarChar)
            {
                string _ValueText = "";
                string _CodeText = "";
                char[] _ValueChar = null;
                switch (p_Model)
                {
                    case Code39Model.Code39Normal:
                        _ValueText = p_Text.ToUpper();
                        break;
                    default:
                        _ValueChar = p_Text.ToCharArray();
                        for (int i = 0; i != _ValueChar.Length; i++)
                        {
                            if ((int)_ValueChar[i] >= 97 && (int)_ValueChar[i] <= 122)
                            {
                                _ValueText += "+" + _ValueChar[i].ToString().ToUpper();
    
                            }
                            else
                            {
                                _ValueText += _ValueChar[i].ToString();
                            }
                        }
                        break;
                }
                _ValueChar = _ValueText.ToCharArray();
    
                if (p_StarChar == true) _CodeText += m_Code39["*"];
    
                for (int i = 0; i != _ValueChar.Length; i++)
                {
                    if (p_StarChar == true && _ValueChar[i] == '*') throw new Exception("带有起始符号不能出现*");
    
                    object _CharCode = m_Code39[_ValueChar[i].ToString()];
                    if (_CharCode == null) throw new Exception("不可用的字符" + _ValueChar[i].ToString());
                    _CodeText += _CharCode.ToString();
                }
                if (p_StarChar == true) _CodeText += m_Code39["*"];
                Bitmap _CodeBmp = GetImage(_CodeText);
                GetViewImage(_CodeBmp, p_Text);
                return _CodeBmp;
            }
    
            /// <summary> 
            /// 绘制编码图形 
            /// </summary> 
            /// <param name="p_Text">编码</param> 
            /// <returns>图形</returns> 
            private Bitmap GetImage(string p_Text)
            {
                char[] _Value = p_Text.ToCharArray();
    
                //宽 == 需要绘制的数量*放大倍数 + 两个字的宽    
                Bitmap _CodeImage = new Bitmap(_Value.Length * ((int)m_Magnify + 1), (int)m_Height);
                Graphics _Garphics = Graphics.FromImage(_CodeImage);
    
                _Garphics.FillRectangle(Brushes.White, new Rectangle(0, 0, _CodeImage.Width, _CodeImage.Height));
    
                int _LenEx = 0;
                for (int i = 0; i != _Value.Length; i++)
                {
                    int _DrawWidth = m_Magnify + 1;
                    if (_Value[i] == '1')
                    {
                        _Garphics.FillRectangle(Brushes.Black, new Rectangle(_LenEx, 0, _DrawWidth, m_Height));
    
                    }
                    else
                    {
                        _Garphics.FillRectangle(Brushes.White, new Rectangle(_LenEx, 0, _DrawWidth, m_Height));
                    }
                    _LenEx += _DrawWidth;
                }
                _Garphics.Dispose();
                return _CodeImage;
            }
    
            /// <summary> 
            /// 绘制文字,文字宽度大于图片宽度将不显示 
            /// </summary> 
            /// <param name="p_CodeImage">图形</param> 
            /// <param name="p_Text">文字</param> 
            private void GetViewImage(Bitmap p_CodeImage, string p_Text)
            {
                if (m_ViewFont == null) return;
                Graphics _Graphics = Graphics.FromImage(p_CodeImage);
                SizeF _FontSize = _Graphics.MeasureString(p_Text, m_ViewFont);
    
                if (_FontSize.Width > p_CodeImage.Width || _FontSize.Height > p_CodeImage.Height - 20)
                {
                    _Graphics.Dispose();
                    return;
                }
                int _StarHeight = p_CodeImage.Height - (int)_FontSize.Height;
    
                _Graphics.FillRectangle(Brushes.White, new Rectangle(0, _StarHeight, p_CodeImage.Width, (int)_FontSize.Height));
    
                int _StarWidth = (p_CodeImage.Width - (int)_FontSize.Width) / 2;
    
                _Graphics.DrawString(p_Text, m_ViewFont, Brushes.Black, _StarWidth, _StarHeight);
    
                _Graphics.Dispose();
    
            }
            #endregion
    
        }
    }

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