//该段代码为 生成条形码代码
//生成效果
using System;using System.Collections.Generic;using System.Text;using System.Drawing;namespace Paabo.WordProcessing.Common{ public class BarCodeProvider { #region 单例 private static BarCodeProvider _Intance; public static BarCodeProvider Intance { get { if (_Intance == null) { _Intance = new BarCodeProvider(); } return _Intance; } } #endregion #region Size /// <summary> /// 图片宽度 /// </summary> private int _Width = 200; public int Width { get { return _Width; } set { _Width = value; } } /// <summary> /// 图片高度 /// </summary> private int _Height = 80; public int Height { get { return _Height; } set { _Height = value; } } /// <summary> /// 明文高度 /// </summary> private int _TextHeight = 25; public int TextHeight { get { return _TextHeight; } set { _TextHeight = value; } } #endregion #region 边距 private int _Margin_Top = 5; /// <summary> /// 上边距 /// </summary> public int Margin_Top { get { return _Margin_Top; } set { _Margin_Top = value; } } private int _Margin_Left = 5; /// <summary> /// 左边距 /// </summary> public int Margin_Left { get { return _Margin_Left; } set { _Margin_Left = value; } } private int _Margin_Right = 5; /// <summary> /// 右边距 /// </summary> public int Margin_Right { get { return _Margin_Right; } set { _Margin_Right = value; } } private int _Margin_Bottom = 5; /// <summary> /// 下边距 /// </summary> public int Margin_Bottom { get { return _Margin_Bottom; } set { _Margin_Bottom = value; } } #endregion private Font _TextFont = new Font("宋体", 12); /// <summary> /// 明文字体 /// </summary> public Font TextFont { get { return _TextFont; } set { _TextFont = value; } } private Pen _BlackPen = new Pen(Brushes.Black); private Pen _WhitePen = new Pen(Brushes.White); /// <summary> /// 将明文装换为编码 /// </summary> /// <param name="text">明文内容</param> /// <returns>编码</returns> private string ConvertToBarCode(string text) { string code = string.Empty; foreach (char item in text) { int itemValue = item; code += Convert.ToString(itemValue, 2) + ","; } return code; } /// <summary> /// 将字符串生成条形图片 /// </summary> /// <param name="text">明文内容</param> /// <returns></returns> public Bitmap CreateBarCodeImage(string text) { Bitmap map = new Bitmap(Width, Height); Graphics g = Graphics.FromImage(map); try { string code = ConvertToBarCode(text); code = string.Format("101{0}101", code); char[] array = code.ToCharArray(); char[] textArray = text.ToCharArray(); int lineWidth = (Width - Margin_Left-Margin_Right) / (array.Length - textArray.Length); int lineHeight = Height - TextHeight - Margin_Bottom; _BlackPen.Width = lineWidth; _WhitePen.Width = lineWidth; int x = 5; int topY = 5; int bottonY = Height - Margin_Bottom - TextHeight; int index = 0; char pItem = ' '; Pen pen = null; foreach (char item in array) { if (item == ',') { string t = textArray[index].ToString(); g.DrawString(t, TextFont, Brushes.Black, new PointF(x - (lineWidth * 5), bottonY + 3)); index++; } else { if (pItem == ' ') { pen = _BlackPen; } else { if (item != pItem) { pen = pen == _BlackPen ? _WhitePen : _BlackPen; } } pItem = item; g.DrawLine(pen, new Point(x, topY), new Point(x, bottonY)); } x += lineWidth; } } catch (Exception ex) { g.Clear(Color.White); g.DrawString(ex.Message, TextFont, Brushes.Black, new PointF(0, 0)); } g.Save(); return map; } }}
