public string EncodeSvgImage(string val, DmtxImageEncoderOptions options)
{
DmtxEncode encode = new DmtxEncode();
encode.ModuleSize = options.ModuleSize;
encode.MarginSize = options.MarginSize;
encode.SizeIdxRequest = options.SizeIdx;
encode.Scheme = options.Scheme;
byte[] valAsByteArray = Encoding.ASCII.GetBytes(val);
encode.EncodeDataMatrix(options.ForeColor, options.BackColor, valAsByteArray);
return EncodeSvgFile(encode, "", options.ModuleSize, options.MarginSize, options.ForeColor, options.BackColor);
}
private Bitmap EncodeImage(string val, DmtxImageEncoderOptions options, bool isMosaic)
{
DmtxEncode encode = new DmtxEncode();
encode.ModuleSize = options.ModuleSize;
encode.MarginSize = options.MarginSize;
encode.Scheme = options.Scheme;
encode.SizeIdxRequest = options.SizeIdx;
byte[] valAsByteArray = Encoding.ASCII.GetBytes(val);
if (isMosaic)
{
encode.EncodeDataMosaic(valAsByteArray);
}
else
{
encode.EncodeDataMatrix(options.ForeColor, options.BackColor, valAsByteArray);
}
return CopyDataToBitmap(encode.Image.Pxl, encode.Image.Width, encode.Image.Height);
}
internal bool EncodeDataMosaic(byte[] inputString)
{
int dataWordCount;
int tmpInputSize;
int inputStartIndex;
int[] splitInputSize = new int[3];
DmtxSymbolSize sizeIdx, sizeIdxRequest;
DmtxSymbolSize splitSizeIdxAttempt, splitSizeIdxFirst, splitSizeIdxLast;
List<byte[]> buf = new List<byte[]>(3);
for (int i = 0; i < 3; i++)
{
buf.Add(new byte[4096]);
}
DmtxEncode encGreen, encBlue;
int row, col, mappingRows, mappingCols;
/* 1) count how many codewords it would take to encode the whole thing
* 2) take ceiling N of codeword count divided by 3
* 3) using minimum symbol size that can accomodate N codewords:
* 4) create several barcodes over iterations of increasing numbers of
* input codewords until you go one too far
* 5) if codewords remain after filling R, G, and B barcodes then go back
* to 3 and try with next larger size
* 6) take the 3 different images you created and write out a new barcode
*/
/* Encode full input string to establish baseline data codeword count */
sizeIdx = sizeIdxRequest = this._sizeIdxRequest;
/* XXX buf can be changed here to use all 3 buffers' length */
dataWordCount = EncodeDataCodewords(buf[0], inputString, ref sizeIdx);
if (dataWordCount <= 0)
return false;
/* Use 1/3 (ceiling) of inputSize establish input size target */
tmpInputSize = (inputString.Length + 2) / 3;
splitInputSize[0] = tmpInputSize;
splitInputSize[1] = tmpInputSize;
splitInputSize[2] = inputString.Length - (splitInputSize[0] + splitInputSize[1]);
/* XXX clean up above lines later for corner cases */
/* Use 1/3 (floor) of dataWordCount establish first symbol size attempt */
splitSizeIdxFirst = FindCorrectSymbolSize(tmpInputSize, sizeIdxRequest);
if (splitSizeIdxFirst == DmtxSymbolSize.DmtxSymbolShapeAuto)
return false;
/* Set the last possible symbol size for this symbol shape or specific size request */
if (sizeIdxRequest == DmtxSymbolSize.DmtxSymbolSquareAuto)
{
splitSizeIdxLast = DmtxSymbolSize.DmtxSymbol144x144;
}
else if (sizeIdxRequest == DmtxSymbolSize.DmtxSymbolRectAuto)
{
splitSizeIdxLast = DmtxSymbolSize.DmtxSymbol16x48;
}
else
{
splitSizeIdxLast = splitSizeIdxFirst;
}
/* XXX would be nice if we could choose a size and then fill up each
layer as we go, but this can cause problems with all data fits on
first 2 layers. Revisit this later after things look a bit cleaner. */
/* Try increasing symbol sizes until 3 of them can hold all input values */
byte[] tmpRed = new byte[splitInputSize[0]];
for (int i = 0; i < splitInputSize[0]; i++)
{
tmpRed[i] = inputString[i];
}
byte[] tmpGreen = new byte[splitInputSize[1]];
for (int i = splitInputSize[0]; i < splitInputSize[0] + splitInputSize[1]; i++)
{
tmpGreen[i - splitInputSize[0]] = inputString[i];
}
byte[] tmpBlue = new byte[splitInputSize[2]];
for (int i = splitInputSize[0] + splitInputSize[1]; i < inputString.Length; i++)
{
tmpBlue[i - splitInputSize[0] - splitInputSize[1]] = inputString[i];
}
for (splitSizeIdxAttempt = splitSizeIdxFirst; splitSizeIdxAttempt <= splitSizeIdxLast; splitSizeIdxAttempt++)
{
/* RED LAYER */
sizeIdx = splitSizeIdxAttempt;
inputStartIndex = 0;
EncodeDataCodewords(buf[0], tmpRed, ref sizeIdx);
if (sizeIdx != splitSizeIdxAttempt)
continue;
/* GREEN LAYER */
sizeIdx = splitSizeIdxAttempt;
inputStartIndex += splitInputSize[0];
EncodeDataCodewords(buf[1], tmpGreen, ref sizeIdx);
if (sizeIdx != splitSizeIdxAttempt)
continue;
/* BLUE LAYER */
sizeIdx = splitSizeIdxAttempt;
inputStartIndex += splitInputSize[1];
EncodeDataCodewords(buf[2], tmpBlue, ref sizeIdx);
if (sizeIdx != splitSizeIdxAttempt)
continue;
break;
}
this._sizeIdxRequest = splitSizeIdxAttempt;
/* Now we have the correct lengths for splitInputSize, and they all fit into the desired size */
encGreen = new DmtxEncode(this);
encBlue = new DmtxEncode(this);
/* First encode red to the main encode struct (image portion will be overwritten) */
EncodeDataMatrix(null, null, tmpRed);
encGreen.EncodeDataMatrix(null, null, tmpGreen);
encBlue.EncodeDataMatrix(null, null, tmpBlue);
mappingRows = DmtxCommon.GetSymbolAttribute(DmtxSymAttribute.DmtxSymAttribMappingMatrixRows, splitSizeIdxAttempt);
mappingCols = DmtxCommon.GetSymbolAttribute(DmtxSymAttribute.DmtxSymAttribMappingMatrixCols, splitSizeIdxAttempt);
for (int i = 0; i < this._region.MappingCols * this._region.MappingRows; i++)
{
this._message.Array[i] = 0;
}
DmtxDecode.ModulePlacementEcc200(this._message.Array, this._message.Code, this._region.SizeIdx, DmtxConstants.DmtxModuleOnRed);
//string s = Encoding.ASCII.GetString(_array);
//Console.WriteLine(s);
/* Data Mosaic will traverse this array multiple times -- reset
DmtxModuleAssigned and DMX_MODULE_VISITED bits before starting */
for (row = 0; row < mappingRows; row++)
{
for (col = 0; col < mappingCols; col++)
{
this._message.Array[row * mappingCols + col] &= (byte)(0xff ^ (DmtxConstants.DmtxModuleAssigned | DmtxConstants.DmtxModuleVisited));
}
}
DmtxDecode.ModulePlacementEcc200(this._message.Array, encGreen.Message.Code, this._region.SizeIdx, DmtxConstants.DmtxModuleOnGreen);
/* Data Mosaic will traverse this array multiple times -- reset
DmtxModuleAssigned and DMX_MODULE_VISITED bits before starting */
for (row = 0; row < mappingRows; row++)
{
for (col = 0; col < mappingCols; col++)
{
this._message.Array[row * mappingCols + col] &= (byte)(0xff ^ (DmtxConstants.DmtxModuleAssigned | DmtxConstants.DmtxModuleVisited));
}
}
DmtxDecode.ModulePlacementEcc200(this._message.Array, encBlue.Message.Code, this._region.SizeIdx, DmtxConstants.DmtxModuleOnBlue);
PrintPattern(null, null);
return true;
}
