import BarcodeFormat from '../BarcodeFormat'; import BitMatrix from '../common/BitMatrix'; import EncodeHintType from '../EncodeHintType'; import ByteMatrix from '../qrcode/encoder/ByteMatrix'; import Charset from '../util/Charset'; import { DefaultPlacement, ErrorCorrection, HighLevelEncoder, MinimalEncoder, SymbolInfo, } from './encoder'; var DataMatrixWriter = /** @class */ (function () { function DataMatrixWriter() { } DataMatrixWriter.prototype.encode = function (contents, format, width, height, hints) { if (hints === void 0) { hints = null; } if (contents.trim() === '') { throw new Error('Found empty contents'); } if (format !== BarcodeFormat.DATA_MATRIX) { throw new Error('Can only encode DATA_MATRIX, but got ' + format); } if (width < 0 || height < 0) { throw new Error('Requested dimensions can\'t be negative: ' + width + 'x' + height); } // Try to get force shape & min / max size var shape = 0 /* FORCE_NONE */; var minSize = null; var maxSize = null; if (hints != null) { var requestedShape = hints.get(EncodeHintType.DATA_MATRIX_SHAPE); if (requestedShape != null) { shape = requestedShape; } var requestedMinSize = hints.get(EncodeHintType.MIN_SIZE); if (requestedMinSize != null) { minSize = requestedMinSize; } var requestedMaxSize = hints.get(EncodeHintType.MAX_SIZE); if (requestedMaxSize != null) { maxSize = requestedMaxSize; } } // 1. step: Data encodation var encoded; var hasCompactionHint = hints != null && hints.has(EncodeHintType.DATA_MATRIX_COMPACT) && Boolean(hints.get(EncodeHintType.DATA_MATRIX_COMPACT).toString()); if (hasCompactionHint) { var hasGS1FormatHint = hints.has(EncodeHintType.GS1_FORMAT) && Boolean(hints.get(EncodeHintType.GS1_FORMAT).toString()); var charset = null; var hasEncodingHint = hints.has(EncodeHintType.CHARACTER_SET); if (hasEncodingHint) { charset = Charset.forName(hints.get(EncodeHintType.CHARACTER_SET).toString()); } encoded = MinimalEncoder.encodeHighLevel(contents, charset, hasGS1FormatHint ? 0x1d : -1, shape); } else { var hasForceC40Hint = hints != null && hints.has(EncodeHintType.FORCE_C40) && Boolean(hints.get(EncodeHintType.FORCE_C40).toString()); encoded = HighLevelEncoder.encodeHighLevel(contents, shape, minSize, maxSize, hasForceC40Hint); } var symbolInfo = SymbolInfo.lookup(encoded.length, shape, minSize, maxSize, true); // 2. step: ECC generation var codewords = ErrorCorrection.encodeECC200(encoded, symbolInfo); // 3. step: Module placement in Matrix var placement = new DefaultPlacement(codewords, symbolInfo.getSymbolDataWidth(), symbolInfo.getSymbolDataHeight()); placement.place(); // 4. step: low-level encoding return this.encodeLowLevel(placement, symbolInfo, width, height); }; /** * Encode the given symbol info to a bit matrix. * * @param placement The DataMatrix placement. * @param symbolInfo The symbol info to encode. * @return The bit matrix generated. */ DataMatrixWriter.prototype.encodeLowLevel = function (placement, symbolInfo, width, height) { var symbolWidth = symbolInfo.getSymbolDataWidth(); var symbolHeight = symbolInfo.getSymbolDataHeight(); var matrix = new ByteMatrix(symbolInfo.getSymbolWidth(), symbolInfo.getSymbolHeight()); var matrixY = 0; for (var y = 0; y < symbolHeight; y++) { // Fill the top edge with alternate 0 / 1 var matrixX = void 0; if (y % symbolInfo.matrixHeight === 0) { matrixX = 0; for (var x = 0; x < symbolInfo.getSymbolWidth(); x++) { matrix.setBoolean(matrixX, matrixY, x % 2 === 0); matrixX++; } matrixY++; } matrixX = 0; for (var x = 0; x < symbolWidth; x++) { // Fill the right edge with full 1 if (x % symbolInfo.matrixWidth === 0) { matrix.setBoolean(matrixX, matrixY, true); matrixX++; } matrix.setBoolean(matrixX, matrixY, placement.getBit(x, y)); matrixX++; // Fill the right edge with alternate 0 / 1 if (x % symbolInfo.matrixWidth === symbolInfo.matrixWidth - 1) { matrix.setBoolean(matrixX, matrixY, y % 2 === 0); matrixX++; } } matrixY++; // Fill the bottom edge with full 1 if (y % symbolInfo.matrixHeight === symbolInfo.matrixHeight - 1) { matrixX = 0; for (var x = 0; x < symbolInfo.getSymbolWidth(); x++) { matrix.setBoolean(matrixX, matrixY, true); matrixX++; } matrixY++; } } return this.convertByteMatrixToBitMatrix(matrix, width, height); }; /** * Convert the ByteMatrix to BitMatrix. * * @param reqHeight The requested height of the image (in pixels) with the Datamatrix code * @param reqWidth The requested width of the image (in pixels) with the Datamatrix code * @param matrix The input matrix. * @return The output matrix. */ DataMatrixWriter.prototype.convertByteMatrixToBitMatrix = function (matrix, reqWidth, reqHeight) { var matrixWidth = matrix.getWidth(); var matrixHeight = matrix.getHeight(); var outputWidth = Math.max(reqWidth, matrixWidth); var outputHeight = Math.max(reqHeight, matrixHeight); var multiple = Math.min(outputWidth / matrixWidth, outputHeight / matrixHeight); var leftPadding = (outputWidth - matrixWidth * multiple) / 2; var topPadding = (outputHeight - matrixHeight * multiple) / 2; var output; // remove padding if requested width and height are too small if (reqHeight < matrixHeight || reqWidth < matrixWidth) { leftPadding = 0; topPadding = 0; output = new BitMatrix(matrixWidth, matrixHeight); } else { output = new BitMatrix(reqWidth, reqHeight); } output.clear(); for (var inputY = 0, outputY = topPadding; inputY < matrixHeight; inputY++, outputY += multiple) { // Write the contents of this row of the bytematrix for (var inputX = 0, outputX = leftPadding; inputX < matrixWidth; inputX++, outputX += multiple) { if (matrix.get(inputX, inputY) === 1) { output.setRegion(outputX, outputY, multiple, multiple); } } } return output; }; return DataMatrixWriter; }()); export default DataMatrixWriter;