C#绘制条码CODE39和CODE39全码模式

最新推荐文章于 2024-05-29 17:15:31 发布

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最新推荐文章于 2024-05-29 17:15:31 发布

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分类专栏：技术经理文章标签： c# 图形 string null object c

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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
 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();
        }
    }
}

http://blog.youkuaiyun.com/zgke/archive/2008/12/12/3503845.aspx