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 Hashtablem_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 Fontm_ViewFont= null ;
- ///<summary>
- ///字体大小
- ///</summary>
- public FontViewFont{ 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>
- ///<paramname="p_Text">文字信息</param>
- ///<paramname="p_Model">类别</param>
- ///<paramname="p_StarChar">是否增加前后*号</param>
- ///<returns>图形</returns>
- public BitmapGetCodeImage( string p_Text,Code39Modelp_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>
- ///<paramname="p_Text">编码</param>
- ///<returns>图形</returns>
- private BitmapGetImage( 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>
- ///<paramname="p_CodeImage">图形</param>
- ///<paramname="p_Text">文字</param>
- private void GetViewImage(Bitmapp_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();
- }
- }
- }