mirror of https://github.com/status-im/qzxing.git
136 lines
3.5 KiB
C++
136 lines
3.5 KiB
C++
#include "qzxing.h"
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#include <zxing/common/GlobalHistogramBinarizer.h>
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#include <zxing/Binarizer.h>
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#include <zxing/BinaryBitmap.h>
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#include <zxing/MultiFormatReader.h>
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#include <zxing/DecodeHints.h>
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#include "CameraImageWrapper.h"
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#include "imagehandler.h"
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using namespace zxing;
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QZXing::QZXing(QObject *parent) : QObject(parent)
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{
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decoder = new MultiFormatReader();
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setDecoder(DecoderFormat_QR_CODE |
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DecoderFormat_DATA_MATRIX |
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DecoderFormat_UPC_E |
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DecoderFormat_UPC_A |
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DecoderFormat_EAN_8 |
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DecoderFormat_EAN_13 |
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DecoderFormat_CODE_128 |
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DecoderFormat_CODE_39 |
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DecoderFormat_ITF |
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DecoderFormat_Aztec);
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imageHandler = new ImageHandler();
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}
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void QZXing::setDecoder(DecoderFormatType hint)
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{
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unsigned int newHints = 0;
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if(hint & DecoderFormat_Aztec)
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newHints |= BarcodeFormat::AZTEC;
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if(hint & DecoderFormat_CODABAR)
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newHints |= BarcodeFormat::CODABAR;
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if(hint & DecoderFormat_CODE_39)
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newHints |= BarcodeFormat::CODE_39;
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if(hint & DecoderFormat_CODE_93)
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newHints |= BarcodeFormat::CODE_93;
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if(hint & DecoderFormat_CODE_128)
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newHints |= BarcodeFormat::CODE_128;
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if(hint & DecoderFormat_DATA_MATRIX)
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newHints |= BarcodeFormat::DATA_MATRIX;
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if(hint & DecoderFormat_EAN_8)
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newHints |= BarcodeFormat::EAN_8;
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if(hint & DecoderFormat_EAN_13)
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newHints |= BarcodeFormat::EAN_13;
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if(hint & DecoderFormat_ITF)
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newHints |= BarcodeFormat::ITF;
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if(hint & DecoderFormat_MAXICODE)
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newHints |= BarcodeFormat::MAXICODE;
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if(hint & DecoderFormat_PDF_417)
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newHints |= BarcodeFormat::ITF;
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if(hint & DecoderFormat_QR_CODE)
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newHints |= BarcodeFormat::QR_CODE;
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if(hint & DecoderFormat_RSS_14)
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newHints |= BarcodeFormat::RSS_14;
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if(hint & DecoderFormat_RSS_EXPANDED)
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newHints |= BarcodeFormat::RSS_EXPANDED;
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if(hint & DecoderFormat_UPC_A)
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newHints |= BarcodeFormat::UPC_A;
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if(hint & DecoderFormat_UPC_E)
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newHints |= BarcodeFormat::UPC_E;
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if(hint & DecoderFormat_UPC_EAN_EXTENSION)
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newHints |= BarcodeFormat::UPC_EAN_EXTENSION;
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supportedFormats = newHints;
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}
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QString QZXing::decodeImage(QImage image)
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{
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Ref<Result> res;
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emit decodingStarted();
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try{
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Ref<LuminanceSource> imageRef(new CameraImageWrapper(image));
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GlobalHistogramBinarizer* binz = new GlobalHistogramBinarizer(imageRef);
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Ref<Binarizer> bz (binz);
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BinaryBitmap* bb = new BinaryBitmap(bz);
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Ref<BinaryBitmap> ref(bb);
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res = ((MultiFormatReader*)decoder)->decode(ref, DecodeHints((int)supportedFormats));
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QString string = QString(res->getText()->getText().c_str());
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emit tagFound(string);
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emit decodingFinished(true);
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return string;
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}
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catch(zxing::Exception& e)
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{
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emit decodingFinished(false);
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return "";
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}
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}
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QString QZXing::decodeImageQML(QObject *item)
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{
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return decodeSubImageQML(item);
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}
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QString QZXing::decodeSubImageQML(QObject* item,
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const double offsetX, const double offsetY,
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const double width, const double height)
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{
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if(item == NULL)
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{
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emit decodingFinished(false);
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return "";
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}
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QImage img = ((ImageHandler*)imageHandler)->extractQImage(item, offsetX, offsetY, width, height);
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return decodeImage(img);
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}
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