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#1 Posted : Thursday, June 30, 2022 11:08:02 AM(UTC)

Amin  
Amin

Groups: Manager, Tech Support
Posts: 363


This C# code sample shows how to use the BarcodeEngine, CombineFastCommand and RasterCodecs classes from LEADTOOLS to take an input animated GIF image and embed it inside a QR code to produce an animated GIF QR code image file.

The result looks like the following image:
Animated GIF logo inside QR


Code:

void AnimatedQR(string gifFile, string QrText, string outputGifFile)
{
   RasterCodecs codecs = new RasterCodecs();
   RasterImage QRimage = RasterImage.Create(800, 800, 24, 200, RasterColor.White);
   RasterImage GIFimage = codecs.Load(gifFile, 24, CodecsLoadByteOrder.Bgr, 1, -1);

   QRBarcodeData data = new QRBarcodeData
   {
      SymbolModel = QRBarcodeSymbolModel.Model2AutoSize,
      Symbology = BarcodeSymbology.QR,
      Value = QrText,
      Bounds = new LeadRect(1, 1, QRimage.ImageWidth, QRimage.ImageHeight)
   };

   QRBarcodeWriteOptions options = new QRBarcodeWriteOptions
   {
      GroupNumber = 0,
      GroupTotal = 0,
      XModule = 30,
      ECCLevel = QRBarcodeECCLevel.LevelL,
      HorizontalAlignment = BarcodeAlignment.Near,
      VerticalAlignment = BarcodeAlignment.Near
   };
   BarcodeEngine barcodeEngine = new BarcodeEngine();
   barcodeEngine.Writer.WriteBarcode(QRimage, data, options);
   AutoCropCommand crop = new AutoCropCommand(128);
   crop.Run(QRimage);

   int minW = QRimage.Width;
   int minH = QRimage.Height;
   bool resize = false;
   if (GIFimage.Width > QRimage.Width / 5)
   {
      minW = GIFimage.Width * 5;
      minH = QRimage.Height * minW / QRimage.Width;
      resize = true;
   }
   if(GIFimage.Height> minH / 5)//must resize based on hieght
   {
      minW = minW * GIFimage.Height * 5 / minH;
      minH = GIFimage.Height * 5;
      resize = true;
   }
   if(resize)
   {
      SizeCommand size = new SizeCommand(minW, minH, RasterSizeFlags.None);
      size.Run(QRimage);
   }
   RasterImage animatedQR = null;
   for(int page = 1; page<=GIFimage.PageCount; page++)
   {
      GIFimage.Page = page;
      RasterImage temp = QRimage.Clone();
      temp.AnimationDelay = GIFimage.AnimationDelay;
      var r = new LeadRect((temp.Width - GIFimage.Width) / 2, (temp.Height - GIFimage.Height) / 2, GIFimage.Width, GIFimage.Height);
      CombineFastCommand combine = new CombineFastCommand(temp, r, new LeadPoint(0, 0), CombineFastCommandFlags.Destination0 | CombineFastCommandFlags.OperationAdd);
      combine.Run(GIFimage);
      if (page == 1)
         animatedQR = temp;
      else
         animatedQR.AddPage(temp);
   }

   codecs.Save(animatedQR, outputGifFile, RasterImageFormat.Gif, 8);
   _viewerBefore.Image = GIFimage;
   _viewerAfter.Image = animatedQR;
}

Amin Dodin

Senior Support Engineer
LEAD Technologies, Inc.
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