How to use C # To draw 39 bar codes

 

Using System;
Using System. Collections. Generic;
Using System. Text;
Using System. Drawing;

Namespace CjLibrary
{

Public enum AlignType
{
Left = 0,
Right = 1,
Center = 2
}

Public class CjBarCode
{
Private AlignType align;

Public AlignType Align
{
Get {return align ;}
Set {Align = value ;}
}
Private int leftmargin = 10;

Public int leftmargin
{
Get {return leftmargin ;}
Set {leftmargin = value ;}
}
Private int topmargin = 10;

Public int topmargin
{
Get {return topMargin ;}
Set {topMargin = value ;}
}
Private int barcodeHeight = 50;

Public int BarcodeHeight
{
Get {return barcodeHeight ;}
Set {barcodeHeight = value ;}
}

Private string headerText = "Shaoxing, Zhejiang Province ";

Public string HeaderText
{
Get {return headerText ;}
Set {headerText = value ;}
}

Private string barcodeText = "";

Public string BarcodeText
{
Get {return barcodeText ;}
Set {barcodeText = value ;}
}

Private bool showheader;

Public bool showheader
{
Get {return showheader ;}
Set {showheader = value ;}
}

Private bool showfooter;

Public bool showfooter
{
Get {return showfooter ;}
Set {showfooter = value ;}
}

Private int headerfontsize;

Public int headerfontsize
{
Get {return headerfontsize ;}
Set {headerfontsize = value ;}
}
Private int footerfontsize;

Public int footerfontsize
{
Get {return footerfontsize ;}
Set {footerFontSize = value ;}
}
Private string headerFontFamily;

Public string HeaderFontFamily
{
Get {return headerFontFamily ;}
Set {headerFontFamily = value ;}
}
Private string footerFontFamily;

Public string FooterFontFamily
{
Get {return footerfontfamily ;}
Set {footerfontfamily = value ;}
}

Protected font headerfont = NULL;
Protected font footerfont = NULL;

Public cjbarcode ()
{
Align = aligntype. Center;
Headerfontfamily = "Courier ";
FooterFontFamily = "Courier ";
HeaderFontSize = 9;
FooterFontSize = 9;
HeaderFont = new Font (headerFontFamily, headerFontSize );
FooterFont = new Font (footerFontFamily, footerFontSize );

}

Protected virtual void DrawBitmap (Graphics g, Rectangle rects)
{

SolidBrush brush = new SolidBrush (Color. PowderBlue );
G. FillRectangle (brush, rects );
}
Protected virtual void DrawText (string text, Graphics g, Rectangle rects)
{
SolidBrush brush = new SolidBrush (Color. PowderBlue );
G. FillRectangle (brush, rects );
}

}

Public class CjBarCode39: CjBarCode
{

Private double wideToNarrowRatio = 3.0;

Public double WideToNarrowRatio
{
Get {return wideToNarrowRatio ;}
Set {wideToNarrowRatio = value ;}
}
Private int weight = 1;

Public int Weight
{
Get {return weight ;}
Set {weight = value ;}
}
/// <Summary>
/// 39 characters in the bar code
/// </Summary>
Private String alphabet39 = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+ % *";

Private String [] coded39Char =
{
/* 0 */"001100100 ",
/* 1 */"100010100 ",
/* 2 */"010010100 ",
/* 3 x/"110000100 ",
/X 4 */"001010100 ",
/X 5 */"101000100 ",
/* 6 x/"011000100 ",
/* 7 x/"000110100 ",
/X 8 */"100100100 ",
/X 9 */"010100100 ",
/* A */"100010010 ",
/* B */"010010010 ",
/* C */"110000010 ",
/* D x/"001010010 ",
/* E/"101000010 ",
/* F */"011000010 ",
/* G/"000110010 ",
/* H */"100100010 ",
/* I/*/"010100010 ",
/* J */"001100010 ",
/X k */"100010001 ",
/* L */"010010001 ",
/* M */"110000001 ",
/* N */"001010001 ",
/* O */"101000001 ",
/* P */"011000001 ",
/* Q */"000110001 ",
/* R */"100100001 ",
/X s */"010100001 ",
/* T */"001100001 ",
/* U */"100011000 ",
/X v */"010011000 ",
/* W */"110001000 ",
/* X */"001011000 ",
/* Y x/"101001000 ",
/* Z */"011001000 ",
/*-*/"000111000 ",
/*. */"110000100 ",
/* ''' */"011000100 ",
/** $*/"010101000 ",
/*/"010100010 ",
/* + */"010001010 ",
/* % */"100101000 ",
/****/"001101000"
};
Public cjbarcode39 ()
{
Barcodetext = "1234 ";
}
/// <Summary>
/// Calculate the left and top coordinates of the bar code to center the bar code.
/// </Summary>
/// <Returns> </returns>
Private int getx ()
{
Int currentlocation = 0;
String strbarcode = "*" + barcodetext. toupper () + "*";
For (INT I = 0; I <strbarcode. length; I ++)
{
String encodedstring = coded39char [alphabet39.indexof (strbarcode [I])];

For (Int J = 0; j <5; j ++)
{

If (encodedString [j] = '0 ')
{
CurrentLocation + = weight;
}
Else
{
CurrentLocation + = 3 * weight;
}
// Draw 6th white stripes
If (j + 5) <9)
{
If (encodedString [j + 5] = '0 ')
{
Currentlocation + = weight;
}
Else
{
Currentlocation + = 3 * weight;
}
}
}
Currentlocation + = weight;
}
Return currentlocation;
}
/// <Summary>
/// Display the barcode
/// </Summary>
/// <Param name = "g"> GDI + </param>
/// <Param name = "rects"> drawing area </param>
Protected override void DrawBitmap (Graphics g, Rectangle rects)
{
If (BarcodeText = "") return;
String strBarcode = "*" + BarcodeText. ToUpper () + "*";
// String strbarcode = barcodetext. toupper ();
String encodedstring = "";
Int currentlocation = (rects. Width-getx ()/2;
Solidbrush blackbrush = new solidbrush (color. Black );
Solidbrush witebrush = new solidbrush (color. White );
Int ytop = rects. Y;
For (INT I = 0; I <strbarcode. length; I ++)
{
Encodedstring = coded39char [alphabet39.indexof (strbarcode [I])];

For (Int J = 0; j <5; j ++)
{

If (encodedstring [J] = '0 ')
{
Rectangle RE1 = new rectangle (currentlocation, ytop, weight, barcodeheight );
G. fillrectangle (blackbrush, RE1 );
Currentlocation + = weight;
}
Else
{
Rectangle re1 = new Rectangle (currentLocation, yTop, 3 * weight, BarcodeHeight );
G. FillRectangle (blackBrush, re1 );
CurrentLocation + = 3 * weight;
}
// Draw 6th white stripes
If (J + 5) <9)
{
If (encodedstring [J + 5] = '0 ')
{
Rectangle RE1 = new rectangle (currentlocation, ytop, weight, barcodeheight );
G. fillrectangle (witebrush, RE1 );
Currentlocation + = weight;
}
Else
{
Rectangle RE1 = new rectangle (currentlocation, ytop, 3 * weight, barcodeheight );
G. fillrectangle (witebrush, RE1 );
Currentlocation + = 3 * weight;
}
}
}
Rectangle re2 = new Rectangle (currentLocation, yTop, weight, BarcodeHeight );
G. FillRectangle (witeBrush, re2 );
CurrentLocation + = weight;
}

}

/// <Summary>
/// Display the bar code and text
/// </Summary>
/// <Param name = "G"> </param>
/// <Param name = "rects"> </param>
Public void drawbarcode (Graphics g, rectangle rects)
{
Sizef hsize = G. measurestring (headertext, this. headerfont );
Sizef fsize = G. measurestring (barcodetext, this. footerfont );
// Headtext
Rectangle T = new rectangle ();
T = rects;
T. Height = (INT) hsize. height;
T. X = (rects. Width-(INT) hsize. width)/2;
Drawtext (headertext, G, T );
// Foottext
Rectangle B = new rectangle ();
B = rects;
B. Y = rects. Height-(INT) fsize. height;
B. x = (rects. Width-(INT) fsize. width)/2;
B. Height = (int) fsize. Height;
DrawText ("*" + BarcodeText + "*", g, B );
// BarCode
Rectangle m = new Rectangle ();
M = rects;
M. Y = t. Height;
M. Height = rects. Height-t. Height-B. Height;
This. BarcodeHeight = m. Height;
DrawBitmap (g, m );
}
/// <Summary>
/// Text display
/// </Summary>
/// <Param name = "text"> </param>
/// <Param name = "g"> </param>
/// <Param name = "rects"> </param>
Protected override void DrawText (string text, Graphics g, Rectangle rects)
{
G. DrawString (text, this. headerFont, Brushes. Black, rects );
}

 

}
}