Code39条形码类
/// <summary>
/// Code39：生成39條碼。
/// </summary>
public class Code39
{
//對應碼表
private Hashtable Decode;
private Hashtable CheckCode;
//每個字元間的間隔符
private string SPARATOR = "0";
public int WidthCU = 3; //粗線和寬間隙寬度
public int WidthXI = 1; //細線和窄間隙寬度
public int xCoordinate = 10;//75; //條碼起始座標
public int LineHeight = 60;
private int Height = 0;
private int Width = 0;
public Code39()
{
Decode = new Hashtable();
Decode.Add("0", "000110100");
Decode.Add("1", "100100001");
Decode.Add("2", "001100001");
Decode.Add("3", "101100000");
Decode.Add("4", "000110001");
Decode.Add("5", "100110000");
Decode.Add("6", "001110000");
Decode.Add("7", "000100101");
Decode.Add("8", "100100100");
Decode.Add("9", "001100100");
Decode.Add("A", "100001001");
Decode.Add("B", "001001001");
Decode.Add("C", "101001000");
Decode.Add("D", "000011001");
Decode.Add("E", "100011000");
Decode.Add("F", "001011000");
Decode.Add("G", "000001101");
Decode.Add("H", "100001100");
Decode.Add("I", "001001101");
Decode.Add("J", "000011100");
Decode.Add("K", "100000011");
Decode.Add("L", "001000011");
Decode.Add("M", "101000010");
Decode.Add("N", "000010011");
Decode.Add("O", "100010010");
Decode.Add("P", "001010010");
Decode.Add("Q", "000000111");
Decode.Add("R", "100000110");
Decode.Add("S", "001000110");
Decode.Add("T", "000010110");
Decode.Add("U", "110000001");
Decode.Add("V", "011000001");
Decode.Add("W", "111000000");
Decode.Add("X", "010010001");
Decode.Add("Y", "110010000");
Decode.Add("Z", "011010000");
Decode.Add("-", "010000101");
Decode.Add("%", "000101010");
Decode.Add("$", "010101000");
Decode.Add("*", "010010100");
CheckCode = new Hashtable();
CheckCode.Add("0", "0");
CheckCode.Add("1", "1");
CheckCode.Add("2", "2");
CheckCode.Add("3", "3");
CheckCode.Add("4", "4");
CheckCode.Add("5", "5");
CheckCode.Add("6", "6");
CheckCode.Add("7", "7");
CheckCode.Add("8", "8");
CheckCode.Add("9", "9");
CheckCode.Add("A", "10");
CheckCode.Add("B", "11");
CheckCode.Add("C", "12");
CheckCode.Add("D", "13");
CheckCode.Add("E", "14");
CheckCode.Add("F", "15");
CheckCode.Add("G", "16");
CheckCode.Add("H", "17");
CheckCode.Add("I", "18");
CheckCode.Add("J", "19");
CheckCode.Add("K", "20");
CheckCode.Add("L", "21");
CheckCode.Add("M", "22");
CheckCode.Add("N", "23");
CheckCode.Add("O", "24");
CheckCode.Add("P", "25");
CheckCode.Add("Q", "26");
CheckCode.Add("R", "27");
CheckCode.Add("S", "28");
CheckCode.Add("T", "29");
CheckCode.Add("U", "30");
CheckCode.Add("V", "31");
CheckCode.Add("W", "32");
CheckCode.Add("X", "33");
CheckCode.Add("Y", "34");
CheckCode.Add("Z", "35");
CheckCode.Add("-", "36");
CheckCode.Add(".", "37");
CheckCode.Add(",", "38");
CheckCode.Add("$", "39");
CheckCode.Add("/", "40");
CheckCode.Add("+", "41");
CheckCode.Add("%", "42");
}
//保存檔
public Boolean saveFile(string Code, string Title, int UseCheck, int ValidateCode)
{
string code39 = Encode39(Code, UseCheck, ValidateCode);
if (code39 != null)
{
Bitmap saved = new Bitmap(this.Width, this.Height);
Graphics g = Graphics.FromImage(saved);
g.FillRectangle(new SolidBrush(Color.White), 0, 0, this.Width, this.Height);
this.DrawBarCode39(code39, Title, g);
//string path = ConfigurationSettings.AppSettings["ImagePath"];
string path = string.Empty;
SaveFileDialog saveFile = new SaveFileDialog();
saveFile.Filter = "*.JPEG|*.JPEG|*.JPG|*.JPG";
saveFile.ShowDialog();
if (!saveFile.FileName.Equals(""))
{
path = saveFile.FileName;
}
else
{
return false;
}
string filename = path + Code + ".jpg";
saved.Save(filename, ImageFormat.Jpeg);
saved.Dispose();
return true;
}
return false;
}
/// <summary>
///
/// </summary>
/// <param name="Code">要生成條碼的內容</param>
/// <param name="Title">要顯示的標題</param>
/// <param name="UseCheck">計算檢查碼</param>
/// <returns></returns>
public Bitmap CreateBarCode(string Code, string Title, int UseCheck, int ValidateCode)
{
string code39 = Encode39(Code, UseCheck, ValidateCode);
if (code39 != null)
{
Bitmap saved = new Bitmap(this.Width, this.Height);
Graphics g = Graphics.FromImage(saved);
g.FillRectangle(new SolidBrush(Color.White), 0, 0, this.Width, this.Height);
this.DrawBarCode39(code39, Title, g);
return saved;
}
return null;
}
/***
* Code:未經編碼的字串
*
* **/
private string Encode39(string Code, int UseCheck, int ValidateCode)
{
int UseStand = 1; //檢查輸入待編碼字元是否為標準格式（是否以*開始結束）
//保存備份資料
string originalCode = Code;
//為空不進行編碼
if (null == Code || Code.Trim().Equals(""))
{
return null;
}
//檢查錯誤字元
Code = Code.ToUpper(); //轉為大寫
Regex rule = new Regex(@"[^0-9A-Z%$\-*]");
if (rule.IsMatch(Code))
{
MessageBox.Show("編碼中包含非法字元，目前僅支援字母,數位及%$-*符號!!");
return null;
}
//計算檢查碼
if (UseCheck == 1)
{
int Check = 0;
//累計求和
for (int i = 0; i < Code.Length; i++)
{
Check += int.Parse((string)CheckCode[Code.Substring(i, 1)]);
}
//取模
Check = Check % 43;
//附加檢測碼
if (ValidateCode == 1)
{
foreach (DictionaryEntry de in CheckCode)
{
if ((string)de.Value == Check.ToString())
{
Code = Code + (string)de.Key;
break;
}
}
}
}
//標準化輸入字元，增加起始標記
if (UseStand == 1)
{
if (Code.Substring(0, 1) != "*")
{
Code = "*" + Code;
}
if (Code.Substring(Code.Length - 1, 1) != "*")
{
Code = Code + "*";
}
}
//轉換成39編碼
string Code39 = string.Empty;
for (int i = 0; i < Code.Length; i++)
{
Code39 = Code39 + (string)Decode[Code.Substring(i, 1)] + SPARATOR;
}
int height = 30 + LineHeight;//定義圖片高度
int width = xCoordinate;
for (int i = 0; i < Code39.Length; i++)
{
if ("0".Equals(Code39.Substring(i, 1)))
{
width += WidthXI;
}
else
{
width += WidthCU;
}
}
this.Width = width + xCoordinate;
this.Height = height;
return Code39;
}
private void DrawBarCode39(string Code39, string Title, Graphics g)
{
int UseTitle = 1; //條碼上端顯示標題
//int UseTTF = 1; //使用TTF字體，方便顯示中文，需要$UseTitle=1時才能生效
if (Title.Trim().Equals(""))
{
UseTitle = 0;
}
Pen pWhite = new Pen(Color.White, 1);
Pen pBlack = new Pen(Color.Black, 1);
int position = xCoordinate;
//顯示標題
if (UseTitle == 1)
{
Font TitleFont = new Font("宋體", 16, FontStyle.Bold);
SizeF sf = g.MeasureString(Title, TitleFont);
g.DrawString(Title, TitleFont, Brushes.Black, (Width - sf.Width) / 2, 5);
}
for (int i = 0; i < Code39.Length; i++)
{
//繪製條線
if ("0".Equals(Code39.Substring(i, 1)))
{
for (int j = 0; j < WidthXI; j++)
{
g.DrawLine(pBlack, position + j, 30, position + j, 30 + LineHeight);
}
position += WidthXI;
}
else
{
for (int j = 0; j < WidthCU; j++)
{
g.DrawLine(pBlack, position + j, 30, position + j, 30 + LineHeight);
}
position += WidthCU;
}
i++;
//繪製間隔線
if ("0".Equals(Code39.Substring(i, 1)))
{
position += WidthXI;
}
else
{
position += WidthCU;
}
}
return;
}
}
