File indexing completed on 2024-05-12 15:49:08

 /*
     SPDX-FileCopyrightText: 2021 Volker Krause <vkrause@kde.org>
 
     SPDX-License-Identifier: MIT
 */
 
 #include "pdf417barcode.h"
 #include "zxingutil_p.h"
 
 #include <ZXing/BitMatrix.h>
 #include <ZXing/MultiFormatWriter.h>
 
 #include <stdexcept>
 
 using namespace Prison;
 
 Pdf417Barcode::Pdf417Barcode()
     : AbstractBarcode(TwoDimensions)
 {
 }
 
 QImage Pdf417Barcode::paintImage(const QSizeF &size)
 {
     Q_UNUSED(size);
 
     std::wstring input;
     const bool isBinary = data().isEmpty();
     if (!isBinary) {
         input = data().toStdWString();
     } else {
         const auto b = byteArrayData();
         input.reserve(b.size());
         // ensure we explicitly copy unsigned bytes here, ie. each byte ends up in the least significant byte of
         // the std::wstring. If we end up converting to a signed value inbetween, values > 127 end up negative and
         // will be wrongly represented in the std::wstring
         for (uint8_t c : b) {
             input.push_back(c);
         }
     }
 
     try {
         ZXing::MultiFormatWriter writer(ZXing::BarcodeFormat::PDF417);
         // ISO/IEC 15438:2006(E) §5.8.3 Quiet Zone
         writer.setMargin(2);
         if (isBinary) {
             writer.setEncoding(ZXing::CharacterSet::BINARY);
         }
         // aspect ratio 4 is hard-coded in ZXing
         const auto matrix = writer.encode(input, 4, 1);
         return ZXingUtil::toImage(matrix, foregroundColor(), backgroundColor());
     } catch (const std::invalid_argument &e) {
     }; // input too large
     return {};
 }