///<inheritdoc/>
public override IEnumerable <string> Render(ZplRenderOptions context)
{
byte[] objectData;
using (var image = Image.Load(ImageData))
{
if (context.ScaleFactor != 1)
{
var scaleWidth = (int)Math.Round(image.Width * context.ScaleFactor);
var scaleHeight = (int)Math.Round(image.Height * context.ScaleFactor);
image.Mutate(x => x.Resize(image.Width / 2, image.Height / 2));
}
using (var ms = new MemoryStream())
{
image.Save(ms, new PngEncoder());
objectData = ms.ToArray();
}
}
var imageResult = _imageConverter.ConvertImage(objectData);
if (_isCompressionActive)
{
imageResult.ZplData = ZebraHexCompressionHelper.Compress(imageResult.ZplData, imageResult.BytesPerRow);
}
return(new List <string>
{
$"~DG{StorageDevice}:{ImageName}.{_extension},{imageResult.BinaryByteCount},{imageResult.BytesPerRow},",
imageResult.ZplData
});
}
public void CompressUncompress_Flow_Successful()
{
var originalData = "FFFFFFFFFFFFFFFFFFFF\n8000FFFF0000FFFF0001\n8000FFFF0000FFFF0001\n8000FFFF0000FFFF0001\nFFFF0000FFFF0000FFFF\nFFFF0000FFFF0000FFFF\nFFFF0000FFFF0000FFFF\nFFFFFFFFFFFFFFFFFFFF\n";
var compressed = ZebraHexCompressionHelper.Compress(originalData, 10);
var uncompressed = ZebraHexCompressionHelper.Uncompress(compressed, 10);
Assert.AreEqual(originalData, uncompressed);
}
public void Compress_ValidData2_Successful()
{
var compressed = ZebraHexCompressionHelper.Compress("FFFFF00FFFFF", 2);
Assert.AreEqual("JFGFH0GFJF", compressed);
//^XA
//~DGR:SAMPLE.GRF,00006,02,JFGFH0GFJF
//^FO20,20
//^XGR:SAMPLE.GRF,1,1^FS
//^XZ
}
public void Compress_ValidData3_Successful()
{
var compressed = ZebraHexCompressionHelper.Compress("FFFFFFFFFFFFFFFFFFFF\n8000FFFF0000FFFF0001\n8000FFFF0000FFFF0001\n8000FFFF0000FFFF0001\nFFFF0000FFFF0000FFFF\nFFFF0000FFFF0000FFFF\nFFFF0000FFFF0000FFFF\nFFFFFFFFFFFFFFFFFFFF\n", 10);
Assert.AreEqual("gFG8I0JFJ0JFI0!::JFJ0JFJ0JF::gF", compressed);
//^XA
//~DGR:SAMPLE.GRF,00080,010,gFG8I0JFJ0JFI0!::JFJ0JFJ0JF::gF
//^FO20,20
//^XGR:SAMPLE.GRF,1,1 ^ FS
//^XZ
}