不使用字体来绘制CODE39码
效果图
使用
MyImage.BandCode.Code39 _Code39 = new MyImage.BandCode.Code39(); _Code39.Height = 120; _Code39.Magnify = 1; _Code39.ViewFont = new Font( "宋体" , 20); pictureBox1.Image = _Code39.GetCodeImage( "123ABC4567890" , MyImage.BandCode.Code39.Code39Model.Code39Normal, true ); pictureBox1.Image.Save(@ "C:/1.bmp" );
全部代码
using System; using System.Collections; using System.ComponentModel; using System.Drawing; using System.Data; namespace MyImage.BandCode { /// <summary> /// Code39编码 /// zgke@sina.com /// qq:116149 /// </summary> 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(); } } } http://blog.csdn.net/zgke/archive/2008/12/12/3503845.aspx
