using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
namespace EAN13
{
class Program
{
static void Main(string[] args)
{
int h = 15; int w = 4;
Bitmap img = new Bitmap(w * 130, h * 60);
//pictureBox1.Image = (Image)img;
Graphics g = Graphics.FromImage(img);
g.FillRectangle(Brushes.White, 0, 0, w * 130, h * 60);
Pen p = new Pen(Color.White, 0);
Random rd = new Random();
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
long v1 = rd.Next(100000, 999999); //只限于:十二位十进制数;
long v2 = rd.Next(100000, 999999); //只限于:十二位十进制数;
string s = v1.ToString() + v2.ToString();
s = string.Format("{0:D12}", s); //不足十二位的将以零补足;
BarCodeEAN13.wctrl_BarCode bc = new BarCodeEAN13.wctrl_BarCode();
Rectangle rect = new Rectangle(5+x * 130, y * 60, 120, 50);
g.DrawRectangle(p, rect);
g.FillRectangle(Brushes.White, rect);
bc.Paint_EAN13(s, g, rect);
}
}
//保存为图片文件
//pictureBox1.Image.Save("g:\\BarCodeEAN13_.bmp");
img.Save("EAN13_.png");
}
}
}
namespace BarCodeEAN13
{
/// <summary>
/// Barcode control.
/// </summary>
public class wctrl_BarCode
{
public string getENA13Code(string Numbers12bit)
{
int c1 = 0;
int c2 = 0;
for (int i = 0; i < 11; i = i + 2)
{
c1 += int.Parse(Numbers12bit[i].ToString());
c2 += int.Parse(Numbers12bit[i + 1].ToString());
}
int c3 = c1 + c2 * 3;
c3 = c3 - c3 / 10 * 10;
if (c3 == 0)
{
return Numbers12bit + 0;
}
else
{
int N = 10 - c3;
return Numbers12bit + N;
}
}
/// <summary>
/// Paint EAN13 barcode to specified graphics into specified draw rectangle.
/// </summary>
/// <param name="barCode">BarCode value.</param>
/// <param name="g">Graphics where to draw.</param>
/// <param name="drawBounds">Draw bounds.</param>
public void Paint_EAN13(string Numbers12bit, Graphics g, Rectangle drawBounds)
{
string barCode = getENA13Code(Numbers12bit);
char[] symbols = barCode.ToCharArray();
//--- Validate barCode -------------------------------------------------------------------//
if (barCode.Length != 13)
{
return;
}
foreach (char c in symbols)
{
if (!Char.IsDigit(c))
{
return;
}
}
//--- Check barcode checksum ------------------------//
int checkSum = Convert.ToInt32(symbols[12].ToString());
int calcSum = 0;
bool one_three = true;
for (int i = 0; i < 12; i++)
{
if (one_three)
{
calcSum += (Convert.ToInt32(symbols[i].ToString()) * 1);
one_three = false;
}
else
{
calcSum += (Convert.ToInt32(symbols[i].ToString()) * 3);
one_three = true;
}
}
char[] calcSumChar = calcSum.ToString().ToCharArray();
if (checkSum != 0 && checkSum != (10 - Convert.ToInt32(calcSumChar[calcSumChar.Length - 1].ToString())))
{
return;
}
//--------------------------------------------------//
//---------------------------------------------------------------------------------------//
Font font = new Font("Microsoft Sans Serif", 8);
// Fill backround with white color
// g.Clear(Color.White);
int lineWidth = 1;
int x = drawBounds.X;
// Paint human readable 1 system symbol code
g.DrawString(symbols[0].ToString(), font, new SolidBrush(Color.Black), x, drawBounds.Y + drawBounds.Height - 16);
x += 10;
// Paint left 'guard bars', always same '101'
g.DrawLine(new Pen(Color.Black, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
g.DrawLine(new Pen(Color.White, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
g.DrawLine(new Pen(Color.Black, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
// First number of barcode specifies how to encode each character in the left-hand
// side of the barcode should be encoded.
bool[] leftSideParity = new bool[6];
switch (symbols[0])
{
case '0':
leftSideParity[0] = true; // Odd
leftSideParity[1] = true; // Odd
leftSideParity[2] = true; // Odd
leftSideParity[3] = true; // Odd
leftSideParity[4] = true; // Odd
leftSideParity[5] = true; // Odd
break;
case '1':
leftSideParity[0] = true; // Odd
leftSideParity[1] = true; // Odd
leftSideParity[2] = false; // Even
leftSideParity[3] = true; // Odd
leftSideParity[4] = false; // Even
leftSideParity[5] = false; // Even
break;
case '2':
leftSideParity[0] = true; // Odd
leftSideParity[1] = true; // Odd
leftSideParity[2] = false; // Even
leftSideParity[3] = false; // Even
leftSideParity[4] = true; // Odd
leftSideParity[5] = false; // Even
break;
case '3':
leftSideParity[0] = true; // Odd
leftSideParity[1] = true; // Odd
leftSideParity[2] = false; // Even
leftSideParity[3] = false; // Even
leftSideParity[4] = false; // Even
leftSideParity[5] = true; // Odd
break;
case '4':
leftSideParity[0] = true; // Odd
leftSideParity[1] = false; // Even
leftSideParity[2] = true; // Odd
leftSideParity[3] = true; // Odd
leftSideParity[4] = false; // Even
leftSideParity[5] = false; // Even
break;
case '5':
leftSideParity[0] = true; // Odd
leftSideParity[1] = false; // Even
leftSideParity[2] = false; // Even
leftSideParity[3] = true; // Odd
leftSideParity[4] = true; // Odd
leftSideParity[5] = false; // Even
break;
case '6':
leftSideParity[0] = true; // Odd
leftSideParity[1] = false; // Even
leftSideParity[2] = false; // Even
leftSideParity[3] = false; // Even
leftSideParity[4] = true; // Odd
leftSideParity[5] = true; // Odd
break;
case '7':
leftSideParity[0] = true; // Odd
leftSideParity[1] = false; // Even
leftSideParity[2] = true; // Odd
leftSideParity[3] = false; // Even
leftSideParity[4] = true; // Odd
leftSideParity[5] = false; // Even
break;
case '8':
leftSideParity[0] = true; // Odd
leftSideParity[1] = false; // Even
leftSideParity[2] = true; // Odd
leftSideParity[3] = false; // Even
leftSideParity[4] = false; // Even
leftSideParity[5] = true; // Odd
break;
case '9':
leftSideParity[0] = true; // Odd
leftSideParity[1] = false; // Even
leftSideParity[2] = false; // Even
leftSideParity[3] = true; // Odd
leftSideParity[4] = false; // Even
leftSideParity[5] = true; // Odd
break;
}
// second number system digit + 5 symbol manufacter code
string lines = "";
for (int i = 0; i < 6; i++)
{
bool oddParity = leftSideParity[i];
if (oddParity)
{
switch (symbols[i + 1])
{
case '0':
lines += "0001101";
break;
case '1':
lines += "0011001";
break;
case '2':
lines += "0010011";
break;
case '3':
lines += "0111101";
break;
case '4':
lines += "0100011";
break;
case '5':
lines += "0110001";
break;
case '6':
lines += "0101111";
break;
case '7':
lines += "0111011";
break;
case '8':
lines += "0110111";
break;
case '9':
lines += "0001011";
break;
}
}
// Even parity
else
{
switch (symbols[i + 1])
{
case '0':
lines += "0100111";
break;
case '1':
lines += "0110011";
break;
case '2':
lines += "0011011";
break;
case '3':
lines += "0100001";
break;
case '4':
lines += "0011101";
break;
case '5':
lines += "0111001";
break;
case '6':
lines += "0000101";
break;
case '7':
lines += "0010001";
break;
case '8':
lines += "0001001";
break;
case '9':
lines += "0010111";
break;
}
}
}
// Paint human readable left-side 6 symbol code
g.DrawString(barCode.Substring(1, 6), font, new SolidBrush(Color.Black), x, drawBounds.Y + drawBounds.Height - 12);
char[] xxx = lines.ToCharArray();
for (int i = 0; i < xxx.Length; i++)
{
if (xxx[i] == '1')
{
g.DrawLine(new Pen(Color.Black, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height - 12);
}
else
{
g.DrawLine(new Pen(Color.White, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height - 12);
}
x += lineWidth;
}
// Paint center 'guard bars', always same '01010'
g.DrawLine(new Pen(Color.White, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
g.DrawLine(new Pen(Color.Black, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
g.DrawLine(new Pen(Color.White, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
g.DrawLine(new Pen(Color.Black, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
g.DrawLine(new Pen(Color.White, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
// 5 symbol product code + 1 symbol parity
lines = "";
for (int i = 7; i < 13; i++)
{
switch (symbols[i])
{
case '0':
lines += "1110010";
break;
case '1':
lines += "1100110";
break;
case '2':
lines += "1101100";
break;
case '3':
lines += "1000010";
break;
case '4':
lines += "1011100";
break;
case '5':
lines += "1001110";
break;
case '6':
lines += "1010000";
break;
case '7':
lines += "1000100";
break;
case '8':
lines += "1001000";
break;
case '9':
lines += "1110100";
break;
}
}
// Paint human readable left-side 6 symbol code
g.DrawString(barCode.Substring(7, 6), font, new SolidBrush(Color.Black), x, drawBounds.Y + drawBounds.Height - 12);
xxx = lines.ToCharArray();
for (int i = 0; i < xxx.Length; i++)
{
if (xxx[i] == '1')
{
g.DrawLine(new Pen(Color.Black, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height - 12);
}
else
{
g.DrawLine(new Pen(Color.White, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height - 12);
}
x += lineWidth;
}
// Paint right 'guard bars', always same '101'
g.DrawLine(new Pen(Color.Black, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
g.DrawLine(new Pen(Color.White, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
x += lineWidth;
g.DrawLine(new Pen(Color.Black, lineWidth), x, drawBounds.Y, x, drawBounds.Y + drawBounds.Height);
}
}
}
来源：oschina
链接：https://my.oschina.net/u/267734/blog/52839