public void ProcessRequest(HttpContext context)
{
if (context.Request["code"] == null || context.Request["width"] == null || context.Request["height"] == null)
{
context.Response.StatusCode = 401;
return;
}
int width = Int32.Parse(context.Request["width"].ToString());
int height = Int32.Parse(context.Request["height"].ToString());
BarcodeLib.Barcode b = new BarcodeLib.Barcode();
b.IncludeLabel = true;
b.Alignment = AlignmentPositions.LEFT;
b.LabelPosition = LabelPositions.BOTTOMLEFT;
b.LabelFont = new Font("Tohoma", 9);
b.Encode(BarcodeLib.TYPE.CODE128, context.Request["code"].ToString(), Color.Black, Color.White, width, height);
context.Response.ContentType = "image/jpeg";
b.SaveImage(context.Response.OutputStream, BarcodeLib.SaveTypes.JPG);
b.Dispose();
}
public BitmapImage GetCell(string content)
{
BarcodeLib.Barcode b = new BarcodeLib.Barcode();
b.BackColor = System.Drawing.Color.White;
b.ForeColor = System.Drawing.Color.Black;
b.IncludeLabel = true;
b.Alignment = BarcodeLib.AlignmentPositions.CENTER;
b.ImageFormat = System.Drawing.Imaging.ImageFormat.Png;
System.Drawing.Font font = new System.Drawing.Font("utf-8", 15);
b.LabelFont = font;
#region 限制字号和长度
double screenWidth = SystemParameters.PrimaryScreenWidth; // 屏幕整体宽度
double screenHeight = SystemParameters.PrimaryScreenHeight;
double rPower = screenWidth / screenHeight;
double cPower = (content.Length * 11 + 35) * 0.01693;
#endregion
try
{
b.Encode(BarcodeLib.TYPE.CODE128, content);
error.Visibility = Visibility.Hidden;
}
catch
{
error.Visibility = Visibility.Visible;
return(null);
}
byte[] buffer = b.GetImageData(SaveTypes.PNG);
Image bitmap;
using (MemoryStream ms = new MemoryStream(buffer))
{
bitmap = (Image)Image.FromStream(ms);
ms.Dispose();
}
if (File.Exists("1.png"))
{
File.Delete("1.png");
}
bitmap.Save("1.png");
bitmap.Dispose();
b.Dispose();
BitmapImage bitmapImage;
using (Image image = Image.FromFile("1.png"))
{
ServerSetting.MarCodeHeight = image.Height;
ServerSetting.MarCodeWidth = image.Width;
using (Graphics graphics = Graphics.FromImage(image))
{
Font fonts = new Font("楷体", fontSize, System.Drawing.FontStyle.Bold);
SizeF sizeF = graphics.MeasureString(header.Text, fonts);
using (Pen pen = new Pen(Color.White, fontSize * 2))
{
graphics.DrawRectangle(pen, new Rectangle(0, 0, image.Width, sizeF.Height.ToInt() + 10));//加椭圆边框
}
graphics.DrawString(header.Text, fonts, System.Drawing.Brushes.Black, new PointF(image.Width / 2 - sizeF.Width / 2, 0));
}
bitmapImage = ImageToBitmapImage(image);
bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
image.Dispose();
}
return(bitmapImage);
}
public override void Draw(Graphics g, List<Matrix> listMatrix)
{
//单位一定要是MM。
g.PageUnit = GraphicsUnit.Millimeter;
//如下的这个是偏移些位置
//如下是先从绘制矩形中的拷贝的，然后再修改
if (Route != 0)
{
PointF pZhongXin = getCentrePoint();
g.TranslateTransform(pZhongXin.X, pZhongXin.Y, MatrixOrder.Prepend);
g.RotateTransform((float)Route);
g.TranslateTransform(-pZhongXin.X, -pZhongXin.Y);
}
//定义画笔
Pen _myPen = new Pen(PenColor, _penWidth);
_myPen.DashStyle = PenDashStyle;
#region
string strBarcodeNumber = "";
//如果设置变量名，就用变量名的对应的变量值。
if (_strVarName != "")
{
strBarcodeNumber = _strVarValue;
//_strBarcodeNumber = "";
}
else//如果没有变量名就用默认的值
{
strBarcodeNumber = _strBarcodeNumber;
}
if (strBarcodeNumber == "")
return;
//条形码可能有异常，比如说位数不符等等
try
{
RectangleF rect = getGraphicsPath(listMatrix).GetBounds();
float fltx = rect.X;
float flty = rect.Y;
float fltw = rect.Width;
float flth = rect.Height;
/**
float fltx = _X + _XAdd;
float flty = _Y + _YAdd;
float fltw = _Width + _WidthAdd;
float flth = _Height + _HeightAdd;
* */
PointF poingStr = new PointF(fltx, flty);//实际位置
int intBarCodeWidth = (int)(fltw * g.DpiX / 25.4);
int intBarCodeHeight = (int)(flth * g.DpiY / 25.4);
;
string strEncoding = _BarcodeEncoding;
BarcodeLib.TYPE myType = BarcodeLib.TYPE.EAN13;
switch (_BarcodeEncoding)
{
case "EAN13":
myType = BarcodeLib.TYPE.EAN13;
break;
case "EAN8":
myType = BarcodeLib.TYPE.EAN8;
break;
case "FIM":
myType = BarcodeLib.TYPE.FIM;
break;
case "Codabar":
myType = BarcodeLib.TYPE.Codabar;
break;
case "UPCA":
myType = BarcodeLib.TYPE.UPCA;
break;
case "UPCE":
myType = BarcodeLib.TYPE.UPCE;
break;
case "UPC_SUPPLEMENTAL_2DIGIT":
myType = BarcodeLib.TYPE.UPC_SUPPLEMENTAL_2DIGIT;
break;
case "UPC_SUPPLEMENTAL_5DIGIT":
myType = BarcodeLib.TYPE.UPC_SUPPLEMENTAL_5DIGIT;
break;
case "CODE39":
myType = BarcodeLib.TYPE.CODE39;
break;
case "CODE39Extended":
myType = BarcodeLib.TYPE.CODE39Extended;
break;
case "CODE128":
myType = BarcodeLib.TYPE.CODE128;
break;
case "CODE128A":
myType = BarcodeLib.TYPE.CODE128A;
break;
case "CODE128B":
myType = BarcodeLib.TYPE.CODE128B;
break;
case "CODE128C":
myType = BarcodeLib.TYPE.CODE128C;
break;
case "ISBN":
myType = BarcodeLib.TYPE.ISBN;
break;
case "Interleaved2of5":
myType = BarcodeLib.TYPE.Interleaved2of5;
break;
case "Standard2of5":
myType = BarcodeLib.TYPE.Standard2of5;
break;
case "Industrial2of5":
myType = BarcodeLib.TYPE.Industrial2of5;
break;
case "PostNet":
myType = BarcodeLib.TYPE.PostNet;
break;
case "BOOKLAND":
myType = BarcodeLib.TYPE.BOOKLAND;
break;
case "JAN13":
myType = BarcodeLib.TYPE.JAN13;
break;
case "MSI_Mod10":
myType = BarcodeLib.TYPE.MSI_Mod10;
break;
case "MSI_2Mod10":
myType = BarcodeLib.TYPE.MSI_2Mod10;
break;
case "MSI_Mod11":
myType = BarcodeLib.TYPE.MSI_Mod11;
break;
case "MSI_Mod11_Mod10":
myType = BarcodeLib.TYPE.MSI_Mod11_Mod10;
break;
case "Modified_Plessey":
myType = BarcodeLib.TYPE.Modified_Plessey;
break;
case "CODE11":
myType = BarcodeLib.TYPE.CODE11;
break;
case "USD8":
myType = BarcodeLib.TYPE.USD8;
break;
case "UCC12":
myType = BarcodeLib.TYPE.UCC12;
break;
case "UCC13":
myType = BarcodeLib.TYPE.UCC13;
break;
case "LOGMARS":
myType = BarcodeLib.TYPE.LOGMARS;
break;
case "ITF14":
myType = BarcodeLib.TYPE.ITF14;
break;
case "TELEPEN":
myType = BarcodeLib.TYPE.TELEPEN;
break;
case "QR_CODE":
//如下得判断长度和宽度是否可以显示,我得茶皂他们最短需要多少。
if ((intBarCodeWidth < 21) || (intBarCodeHeight < 21))
{
g.DrawString("图像太小显示不了", new Font("Arial", 6), new SolidBrush(Color.Black), poingStr);
g.DrawRectangle(new Pen(Color.Black, 0.5f), fltx, flty, fltw, flth);
}
else
{
//只有在这两个中有一个不相等的情况下才需要更新。
if ((_fltOldW != _Width) || (_fltOldh != _Height) || isChangeed)
{
isChangeed = false;//重新设置成没有更新。
_fltOldW = _Width;
_fltOldh = _Height;
Hashtable hints = new Hashtable();
//hints.Add(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);//容错能力
hints.Add(EncodeHintType.ERROR_CORRECTION, _QRCODEErrorLevel);//设置容错率
//如下是读取编码，只有在这个不为空的时候才选择
if (_strLanguageEncodingName != "")
{
hints.Add(EncodeHintType.CHARACTER_SET, _strLanguageEncodingName);//字符集
}
COMMON.ByteMatrix byteMatrix = new MultiFormatWriter().encode(strBarcodeNumber, BarcodeFormat.QR_CODE, intBarCodeWidth, intBarCodeHeight, hints);
_imageOld = toBitmap(byteMatrix, g.DpiX, g.DpiY);
g.DrawImage(_imageOld, rect);
}
else//如果没有更新，就直接绘图就可以了。
{
g.DrawImage(_imageOld, rect);
}
}
return;//这个是直接返回的。因为下边的是调用的一维码的程序
}
BarcodeLib.Barcode bar = new BarcodeLib.Barcode();
bar.IncludeLabel = _isIncludeLabel;
bar.LabelFont = _RealFont;
bar.LabelPosition = LabelPosition;//条形码文字的位置
//不能少于这个大小
/**因为跟放大缩小相冲突，所以注释掉了，如果图像小，就显示显示不了。
if (intBarCodeWidth < 100)
{
intBarCodeWidth = 100;
_Width = intBarCodeWidth / g.DpiX * 25.4f;
_WidthAdd = 0;
}
if (intBarCodeHeight < 30)
{
intBarCodeHeight = 30;
_Height = intBarCodeHeight / g.DpiY * 25.4f;
_HeightAdd = 0;
}
* */
if ((intBarCodeWidth < 100) || (intBarCodeHeight < 30))
{
g.DrawString("图像太小显示不了", new Font("Arial", 6), new SolidBrush(Color.Black), poingStr);
g.DrawRectangle(new Pen(Color.Black, 0.5f), fltx, flty, fltw, flth);
}
else
{
Image myImage = bar.Encode(myType, strBarcodeNumber, intBarCodeWidth, intBarCodeHeight, g.DpiX, g.DpiY);
//将最新的宽度更新。好像不用更新。
g.DrawImage(myImage, rect);
}
bar.Dispose();
}
catch (Exception e)
{
//因为这个Draw是持续刷新的，为了在条形码数字出错是只提示依次，在此需要这个，而我在条形码数字更改的时候，重新设置那个为空了
if (_strBarcodeErrorMessage != e.Message)
{
_strBarcodeErrorMessage = e.Message;
MessageBox.Show(e.Message);
return;
}
}
#endregion
//throw new NotImplementedException();
g.ResetTransform();//恢复原先的坐标系。
//base.Draw(g, arrlistMatrix);
}
