public async Task <Tuple <bool, string> > PagePay(string body, string outTradeNo, int totalFee, string productId)
{
try
{
var nativePay = new NativePay();
//生成扫码支付模式二url
var url2 = await nativePay.GetPayUrl(body, outTradeNo, totalFee, productId);
//将url生成二维码图片
var writerSvg = new BarcodeWriterSvg
{
Format = BarcodeFormat.QR_CODE,
Options = new QrCodeEncodingOptions
{
ErrorCorrection = ErrorCorrectionLevel.H
}
};
var svgImageData = writerSvg.Write(url2);
return(svgImageData == null
? new Tuple <bool, string>(false, "返回数据为空！")
: new Tuple <bool, string>(true, svgImageData.ToString()));
}
catch (Exception e)
{
return(new Tuple <bool, string>(false, e.Message));
}
}
private void btnEncoderSave_Click(object sender, EventArgs e)
{
if (picEncodedBarCode.Image != null)
{
var fileName = String.Empty;
using (var dlg = new SaveFileDialog())
{
dlg.DefaultExt = "png";
dlg.Filter = "PNG Files (*.png)|*.png|SVG Files (*.svg)|*.svg|BMP Files (*.bmp)|*.bmp|TIFF Files (*.tif)|*.tif|JPG Files (*.jpg)|*.jpg|All Files (*.*)|*.*";
if (dlg.ShowDialog(this) != DialogResult.OK)
{
return;
}
fileName = dlg.FileName;
}
var extension = Path.GetExtension(fileName).ToLower();
var bmp = (Bitmap)picEncodedBarCode.Image;
switch (extension)
{
case ".bmp":
bmp.Save(fileName, ImageFormat.Bmp);
break;
case ".jpeg":
case ".jpg":
bmp.Save(fileName, ImageFormat.Jpeg);
break;
case ".tiff":
case ".tif":
bmp.Save(fileName, ImageFormat.Tiff);
break;
case ".svg":
{
var writer = new BarcodeWriterSvg
{
Format = (BarcodeFormat)cmbEncoderType.SelectedItem,
Options = EncodingOptions ?? new EncodingOptions
{
Height = picEncodedBarCode.Height,
Width = picEncodedBarCode.Width
}
};
var svgImage = writer.Write(txtEncoderContent.Text);
File.WriteAllText(fileName, svgImage.Content, System.Text.Encoding.UTF8);
}
break;
default:
bmp.Save(fileName, ImageFormat.Png);
break;
}
}
}
private string GetBarCode(string plateName)
{
var writer = new BarcodeWriterSvg
{
Format = BarcodeFormat.CODE_128,
Options = new ZXing.Common.EncodingOptions
{
Width = 200,
Height = 100
}
};
return(writer.Write(plateName).Content);
}
public Task OnLoadAsync(Kernel kernel)
{
Formatter <Result> .Register((result, writer) =>
{
var barcodeWriter = new BarcodeWriterSvg
{
Format = result.BarcodeFormat,
Options = new EncodingOptions
{
Height = 300,
Width = 600
}
};
writer.Write(barcodeWriter.Write(result.Text).Content);
}, HtmlFormatter.MimeType);
return(Task.CompletedTask);
}
private void tsmiSaveAs_Click(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtQRCode.Text))
{
using (SaveFileDialog saveFileDialog = new SaveFileDialog())
{
saveFileDialog.Filter = @"PNG (*.png)|*.png|JPEG (*.jpg)|*.jpg|Bitmap (*.bmp)|*.bmp|SVG (*.svg)|*.svg";
saveFileDialog.FileName = txtQRCode.Text;
saveFileDialog.DefaultExt = "png";
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
string filePath = saveFileDialog.FileName;
if (filePath.EndsWith("svg", StringComparison.InvariantCultureIgnoreCase))
{
BarcodeWriterSvg writer = new BarcodeWriterSvg
{
Format = BarcodeFormat.QR_CODE,
Options = new EncodingOptions
{
Width = pbQRCode.Width,
Height = pbQRCode.Height
}
};
SvgRenderer.SvgImage svgImage = writer.Write(txtQRCode.Text);
File.WriteAllText(filePath, svgImage.Content, Encoding.UTF8);
}
else
{
if (pbQRCode.Image != null)
{
ImageHelpers.SaveImage(pbQRCode.Image, filePath);
}
}
}
}
}
}
private string GenerateCode(string content, BarcodeFormat format = BarcodeFormat.QR_CODE, int width = 100, int height = 100)
{
if (string.IsNullOrEmpty(content))
{
throw new KeyNotFoundException($"Content for barcode not found.");
}
BarcodeWriterSvg writer = new BarcodeWriterSvg();
writer.Format = format;
switch (format)
{
case BarcodeFormat.QR_CODE:
writer.Options = new ZXing.QrCode.QrCodeEncodingOptions()
{
Height = height,
Width = width
};
content = Uri.UnescapeDataString(content);
break;
case BarcodeFormat.EAN_13:
case BarcodeFormat.EAN_8:
writer.Options = new EncodingOptions()
{
Height = height,
};
break;
default:
throw new NotImplementedException($"Format [{format}] not implemented.");
}
var encodedContent = writer.Write(content);
return(encodedContent.ToString());
}
/// <summary>
/// Convert the specified string value. To an SVG QR code
/// </summary>
/// <returns>The convert.</returns>
/// <param name="value">Value.</param>
public SvgImage Convert(string value)
{
BarcodeWriter <SvgImage> bcw = new BarcodeWriterSvg()
{
Renderer = new SvgRenderer(),
Format = ZXing.BarcodeFormat.QR_CODE,
};
EncodingOptions encOptions = new EncodingOptions
{
Width = 300,
Height = 300,
Margin = 0,
PureBarcode = false
};
//Define error correction level
encOptions.Hints.Add(ZXing.EncodeHintType.ERROR_CORRECTION, ZXing.QrCode.Internal.ErrorCorrectionLevel.H);
bcw.Options = encOptions;
return(bcw.Write(value));
}
private void btnEncoderSave_Click(object sender, EventArgs e)
{
if (picEncodedBarCode.Image != null)
{
var fileName = String.Empty;
using (var dlg = new SaveFileDialog())
{
dlg.DefaultExt = "png";
dlg.Filter = "PNG Files (*.png)|*.png|SVG Files (*.svg)|*.svg|BMP Files (*.bmp)|*.bmp|TIFF Files (*.tif)|*.tif|JPG Files (*.jpg)|*.jpg|All Files (*.*)|*.*";
if (dlg.ShowDialog(this) != DialogResult.OK)
return;
fileName = dlg.FileName;
}
var extension = Path.GetExtension(fileName).ToLower();
var bmp = (Bitmap)picEncodedBarCode.Image;
switch (extension)
{
case ".bmp":
bmp.Save(fileName, ImageFormat.Bmp);
break;
case ".jpeg":
case ".jpg":
bmp.Save(fileName, ImageFormat.Jpeg);
break;
case ".tiff":
case ".tif":
bmp.Save(fileName, ImageFormat.Tiff);
break;
case ".svg":
{
var writer = new BarcodeWriterSvg
{
Format = (BarcodeFormat) cmbEncoderType.SelectedItem,
Options = EncodingOptions ?? new EncodingOptions
{
Height = picEncodedBarCode.Height,
Width = picEncodedBarCode.Width
}
};
var svgImage = writer.Write(txtEncoderContent.Text);
File.WriteAllText(fileName, svgImage.Content, System.Text.Encoding.UTF8);
}
break;
default:
bmp.Save(fileName, ImageFormat.Png);
break;
}
}
}
public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", Route = null)] HttpRequest req,
ILogger log)
{
// FYI, sizes are a little weird when rending QR codes. Setting to certain values seems to not "take"
// until the value exceeds some magical boundary.
// Explained here: https://stackoverflow.com/questions/17527591/zxing-net-qr-code-size
// "Each Matrix code type has symmetrical representation requirements. It will always jump to an even number that is a multiple of the codeword size."
// GS1 General Specification define that GS1-128 (the formal application of Code 128 to the supply chain industry) has a limits of 48 characters per symbol.
// But technically, there's no limit as long as the device can read it.
// Let's set our limit to a reasonable 100.
const int maxValueLength = 2048;
const string defaultImageWidth = "0";
const string defaultImageHeight = "40";
const int minImageWidth = 0;
const int maxImageWidth = 2048;
const int minImageHeight = 10;
const int maxImageHeight = 2048;
const string defaultMargin = "0";
const int maxMargin = 200;
// Log the querystring.
log.LogInformation($"querystring: {req.QueryString.Value}");
// Validate the value, v
if (!req.Query.ContainsKey("v"))
{
return(new BadRequestObjectResult("No value 'v' specified. You must specify the value you wish to encode."));
}
string value = req.Query["v"];
if (value.Length > maxValueLength)
{
return(new BadRequestObjectResult($"Invalid length for value 'v'. This API will not render a barcode longer than {maxValueLength} characters."));
}
// Validate the output format 'fmt'.
var outputFormat = req.Query.ContainsKey("fmt") ? req.Query["fmt"].ToString() : "png";
if (outputFormat != "png" && outputFormat != "svg")
{
return(new BadRequestObjectResult(
$"Invalid output file format 'fmt'. Value must be 'png' or 'svg'."));
}
// Validate the barcode symbology, 'sym'.
var symbologyStr = req.Query.ContainsKey("sym") ? req.Query["sym"].ToString() : BarcodeFormat.CODE_128.ToString();
var parsed = Enum.TryParse <BarcodeFormat>(symbologyStr, true, out var symbology);
if (!parsed)
{
return(new BadRequestObjectResult(
$"Invalid barcode symbology 'sym'. Value must be one of {string.Join(",", Enum.GetNames(typeof(BarcodeFormat)))}"));
}
// Validate height, width and margin.
var heightStr = req.Query.ContainsKey("h") ? req.Query["h"].ToString() : defaultImageHeight;
var widthStr = req.Query.ContainsKey("w") ? req.Query["w"].ToString() : defaultImageWidth;
var marginStr = req.Query.ContainsKey("m") ? req.Query["m"].ToString() : defaultMargin;
int.TryParse(heightStr, out var height);
if (height < minImageHeight || height > maxImageHeight)
{
return(new BadRequestObjectResult($"Height 'h' must be between {minImageHeight} and {maxImageHeight}."));
}
int.TryParse(widthStr, out var width);
if (width < minImageWidth || width > maxImageWidth)
{
return(new BadRequestObjectResult($"Width 'w' must be between {minImageWidth} and {maxImageWidth}."));
}
int.TryParse(marginStr, out var margin);
if (margin < 0 || margin > maxMargin)
{
return(new BadRequestObjectResult($"Margin 'm' must be between 0 and {maxMargin}."));
}
// Configure the EncodingOptions.
// There are many options for more complicated symbologies which we don't handle here.
// Our purposes are focused on Code 128 and QR Code.
var options = new EncodingOptions
{
Height = height
};
if (width > 0)
{
options.Width = width;
}
if (margin > 0)
{
options.Margin = margin;
}
// Branch depending on whether we're outputting a PNG graphics file or an SVG.
if (outputFormat == "png")
{
var bcWriter = new BarcodeWriterPixelData
{
Format = symbology,
Options = options
};
var pixelData = bcWriter.Write(value);
using (var img = Image.LoadPixelData <Rgba32>(pixelData.Pixels, pixelData.Width, pixelData.Height))
{
using (var ms = new MemoryStream())
{
img.SaveAsPng(ms);
return(new FileContentResult(ms.ToArray(), "image/png"));
}
}
}
else // svg
{
var svgWriter = new BarcodeWriterSvg()
{
Format = symbology,
};
var svg = svgWriter.Write(value);
var bytes = Encoding.UTF8.GetBytes(svg.ToString());
return(new FileContentResult(bytes, "image/svg+xml"));
}
}
