/// <summary>
/// Zpl Download Graphics
/// </summary>
/// <param name="storageDevice"></param>
/// <param name="imageName"></param>
/// <param name="imageData"></param>
/// <param name="isCompressionActive"></param>
/// <param name="imageConverter"></param>
public ZplDownloadGraphics(
char storageDevice,
string imageName,
byte[] imageData,
bool isCompressionActive = true,
IImageConverter imageConverter = default)
: base(storageDevice)
{
if (imageName.Length > 8)
{
new ArgumentException("maximum length of 8 characters exceeded", nameof(imageName));
}
_extension = "GRF"; //Fixed
ImageName = imageName;
ImageData = imageData;
if (imageConverter == default)
{
imageConverter = new ImageSharpImageConverter();
}
_isCompressionActive = isCompressionActive;
_imageConverter = imageConverter;
}
public override ZplElementBase Analyze(string zplCommand)
{
var storageDevice = zplCommand[this.PrinterCommandPrefix.Length];
var zplDataParts = this.SplitCommand(zplCommand, 2);
var imageName = zplDataParts[0];
_ = int.TryParse(zplDataParts[1], out var totalNumberOfBytesInGraphic);
_ = int.TryParse(zplDataParts[2], out var numberOfBytesPerRow);
//third comma is the start of the image data
var indexOfThirdComma = this.IndexOfNthCharacter(zplCommand, 3, ',');
var dataHex = zplCommand.Substring(indexOfThirdComma + 1);
var grfImageData = ByteHelper.HexToBytes(dataHex);
if (grfImageData.Length != totalNumberOfBytesInGraphic)
{
dataHex = ZebraHexCompressionHelper.Uncompress(dataHex, numberOfBytesPerRow);
grfImageData = ByteHelper.HexToBytes(dataHex);
}
var converter = new ImageSharpImageConverter();
var imageData = converter.ConvertImage(grfImageData, numberOfBytesPerRow);
this._printerStorage.AddFile(storageDevice, imageName, imageData);
return(null);
}
public override ZplElementBase Analyze(string zplCommand)
{
var x = 0;
var y = 0;
var bottomToTop = false;
if (this.VirtualPrinter.NextElementPosition != null)
{
x = this.VirtualPrinter.NextElementPosition.X;
y = this.VirtualPrinter.NextElementPosition.Y;
bottomToTop = this.VirtualPrinter.NextElementPosition.CalculateFromBottom;
}
var zplDataParts = this.SplitCommand(zplCommand);
var compressionType = zplDataParts[0][0];
var binaryByteCount = 0;
var graphicFieldCount = 0;
var bytesPerRow = 0;
if (zplDataParts.Length > 1)
{
_ = int.TryParse(zplDataParts[1], out binaryByteCount);
}
if (zplDataParts.Length > 2)
{
_ = int.TryParse(zplDataParts[2], out graphicFieldCount);
}
if (zplDataParts.Length > 3)
{
_ = int.TryParse(zplDataParts[3], out bytesPerRow);
}
//fourth comma is the start of the image data
var indexOfFourthComma = this.IndexOfNthCharacter(zplCommand, 4, ',');
var dataHex = zplCommand.Substring(indexOfFourthComma + 1);
if (dataHex.Length != binaryByteCount * 2)
{
dataHex = ZebraHexCompressionHelper.Uncompress(dataHex, bytesPerRow);
}
var grfImageData = ByteHelper.HexToBytes(dataHex);
var converter = new ImageSharpImageConverter();
var imageData = converter.ConvertImage(grfImageData, bytesPerRow);
dataHex = ByteHelper.BytesToHex(imageData);
return(new ZplGraphicField(x, y, binaryByteCount, graphicFieldCount, bytesPerRow, dataHex, bottomToTop: bottomToTop, compressionType));
}
