public IActionResult GetQrCode(int busId)
{
var busName = busService.GetBus(busId).BusName;
var qrCodeContent = new QrCodeContent
{
BusName = busName,
BusId = busId
};
return(Ok(qrCodeService.GenerateQrCodeImage(qrCodeContent)));
}
public PictureViewModel GenerateQrCodeImage(QrCodeContent qrCodeContent)
{
var width = 250;
var height = 250;
var margin = 0;
var qrCodeWriter = new BarcodeWriterPixelData()
{
Format = BarcodeFormat.QR_CODE,
Options = new QrCodeEncodingOptions()
{
Height = height,
Width = width,
Margin = margin
}
};
var pixelData = qrCodeWriter.Write($"{(env.IsDevelopment() ? Constants.QrUrlDevelopment : Constants.QrUrl)}/traveling/{qrCodeContent.BusId}");
var picture = new PictureViewModel();
picture.Name = $"Qr code for {qrCodeContent.BusName}";
picture.MediaType = "image/jpg";
picture.Type = "File";
using (var bitmap = new Bitmap(pixelData.Width, pixelData.Height, PixelFormat.Format32bppRgb))
{
using (var ms = new MemoryStream())
{
var bitmapData = bitmap.LockBits(new Rectangle(0, 0, pixelData.Width, pixelData.Height),
ImageLockMode.WriteOnly, PixelFormat.Format32bppRgb);
try
{
Marshal.Copy(pixelData.Pixels, 0, bitmapData.Scan0, pixelData.Pixels.Length);
}
finally
{
bitmap.UnlockBits(bitmapData);
}
bitmap.Save(ms, ImageFormat.Png);
picture.Value = Convert.ToBase64String(ms.ToArray());
}
}
return(picture);
}
