public Rectangle(DTO.Rectangle r, Vector offset, IReadOnlyCollection <DTO.Rectangle> unconnectableRectangles)
{
RectangleDto = r;
_unconnectableRectangles = unconnectableRectangles;
Geometry = GetGeometry(r, offset);
Brush = GetBrush();
}
public static Barcode GetBarcode(byte[] imageBytes, DTO.Rectangle rectangle)
{
try
{
var barcode = GetCodeFromImage(imageBytes, rectangle);
if (barcode == null)
{
barcode = GetCodeFromImage(imageBytes, rectangle, true);
}
if (barcode != null && barcode.Text != "")
{
var bc = new Barcode();
bc.Number = barcode.Text;
bc.Type = barcode.BarcodeFormat == BarcodeFormat.CODE_39 ? BarcodeType.Code39 : BarcodeType.Code128;
return(bc);
}
return(new Barcode()
{
Type = BarcodeType.Empty, Number = ""
});
}
catch (Exception)
{
return(new Barcode()
{
Type = BarcodeType.Empty, Number = ""
});
}
}
public static PDFInfo CreatePdfInfo(string filepath, DTO.Rectangle rectangle)
{
var pdf = new PDFInfo();
pdf.FilePath = filepath;
pdf.CreatedTime = new FileInfo(filepath).CreationTime;
pdf.Images = new Imaging.PdfConverter().CovertPdfToImages(filepath);
foreach (var image in pdf.Images)
{
var bcode = Imaging.BarcodeScanner.GetBarcode(image, rectangle);
if (bcode.Type != Core.Enums.BarcodeType.Empty)
{
pdf.Barcode = bcode.Number;
pdf.BarcodeType = bcode.Type;
pdf.isBarcode = true;
break;
}
}
//Loop over the images again to compress them. Can't modify the itterator in the foreach loop
for (int i = 0; i < pdf.Images.Count; i++)
{
var img = pdf.Images[i];
//image has been processed. We can compress it now
Imaging.ImageCompressor.CompressImage(ref img);
}
return(pdf);
}
private static Rect GetGeometry(DTO.Rectangle rectangleDto, Vector offset)
{
var topLeft = new Point(rectangleDto.TopLeft.X + offset.X, rectangleDto.TopLeft.Y + offset.Y);
var bottomRight = new Point(rectangleDto.BottomRight.X + offset.X, rectangleDto.BottomRight.Y + offset.Y);
var geometry = new Rect(topLeft, bottomRight);
return(geometry);
}
private static Result GetCodeFromImage(byte[] imageBytes, DTO.Rectangle rectangle, bool rotate = false)
{
var btmap = SKBitmap.Decode(imageBytes);
if (rotate)
{
//Rotate the image 180 degrees, and replace the bitmap with the rotated image
var rotated = new SKBitmap(btmap.Width, btmap.Height);
using (var surface = new SKCanvas(rotated))
{
surface.Translate(rotated.Width, rotated.Height);
surface.RotateDegrees(180);
surface.DrawBitmap(btmap, 0, 0);
}
btmap = rotated;
}
var subBitmap = btmap;
var cropArea = new SKRectI();
if (btmap.Height > 150)
{
if (rectangle.Width == 0)
{
var heightOfSelection = (int)(btmap.Height / 7);
rectangle.Height = heightOfSelection;
rectangle.StartX = 0;
rectangle.StartY = 0;
rectangle.Width = btmap.Width - 1;
cropArea = new SKRectI((int)rectangle.StartX, (int)rectangle.StartY, (int)rectangle.Width, (int)rectangle.Height);
}
else
{
var widthFactor = btmap.Width / rectangle.RefImageWidth;
var heightFactor = btmap.Height / rectangle.RefImageHeight;
var calcStartX = rectangle.StartX * widthFactor;
var calcStartY = rectangle.StartY * heightFactor;
var calcWidth = rectangle.Width * widthFactor;
var calcHeight = rectangle.Height * heightFactor;
cropArea = new SKRectI((int)calcStartX, (int)calcStartY, (int)calcWidth, (int)calcHeight);
}
var img = SKImage.FromBitmap(btmap);
var subset = img.Subset(cropArea);
subBitmap = SKBitmap.FromImage(subset);
img.Dispose();
subset.Dispose();
}
var reader = new ZXing.BarcodeReader();
var barcodes = reader.Decode(subBitmap);
btmap.Dispose();
subBitmap.Dispose();
return(barcodes);
}
