标签：Code39 CodeImage C# CODE39 Height int Add ValueChar
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();
}
}
}
标签：Code39,CodeImage,C#,CODE39,Height,int,Add,ValueChar 来源： https://www.cnblogs.com/GengGo/p/12790452.html
本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享； 2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关； 3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关； 4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除； 5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。