C#绘制条码CODE39和CODE39全码模式(转自：Zgke兄的文章)
今天在论坛里看帖子，发现Zgke的绘制条码的文章不错，里面的代码，也不错，就自己试了一下。相当不错。自己加了一个文本框用来输入相应的值。下面是代码
Code39.cs代码
using System; using System.Collections; using System.ComponentModel; using System.Drawing; using System.Data; namespace winformToolBox { public class Code39 { 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; } } public Code39() { 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 /// </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(); } } }
MyCode.cs代码
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace winformToolBox { public partial class MyCode : Form { public MyCode() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { Code39 c39 = new Code39(); c39.Height = 120; c39.Magnify = 1; c39.ViewFont = new Font("宋体", 20); pictureBox1.Image = c39.GetCodeImage(this.textBox1.Text.Trim().ToUpper(), Code39.Code39Model.Code39Normal, true); //pictureBox1.Image.Save(@"C:/1.bmp"); } } }