mirror of https://github.com/status-im/qzxing.git
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
#ifndef QZXING_H
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#define QZXING_H
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#include "QZXing_global.h"
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#include <QObject>
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#include <QImage>
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#if QT_VERSION >= 0x040700
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#include <QtDeclarative>
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#endif
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/**
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* A class containing a very very small subset of the ZXing library.
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* Created for ease of use.
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*
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* Anyone interested in using more technical stuff
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* from the ZXing library is welcomed to add/edit on free will.
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*
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* Regarding DecoderFormat, by default all of those are enabled (except DataMatrix will is still not supported)
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*/
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class QZXINGSHARED_EXPORT QZXing : public QObject{
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Q_OBJECT
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Q_ENUMS(DecoderFormat)
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public:
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enum DecoderFormat {
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DecoderFormat_None = 0,
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DecoderFormat_QR_CODE = 1,
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DecoderFormat_DATA_MATRIX = 2,
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DecoderFormat_UPC_E = 4,
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DecoderFormat_UPC_A = 8,
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DecoderFormat_EAN_8 = 16,
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DecoderFormat_EAN_13 = 32,
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DecoderFormat_CODE_128 = 64,
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DecoderFormat_CODE_39 = 128,
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DecoderFormat_ITF = 256,
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DecoderFormat_Aztec = 512
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} ;
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typedef unsigned int DecoderFormatType;
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public:
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QZXing(QObject *parent = NULL);
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/**
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* Set the enabled decoders.
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* As argument it is possible to pass conjuction of decoders by using logic OR.
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* e.x. setDecoder ( DecoderFormat_QR_CODE | DecoderFormat_EAN_13 | DecoderFormat_CODE_39 )
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*/
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void setDecoder(DecoderFormatType hint);
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#if QT_VERSION >= 0x040700
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static void registerQMLTypes()
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{
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qmlRegisterType<QZXing>("QZXing", 1, 2, "QZXing");
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}
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#endif
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public slots:
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/**
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* The decoding function. Will try to decode the given image based on the enabled decoders.
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*
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*/
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QString decodeImage(QImage image);
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/**
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* The decoding function accessible from QML
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*/
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QString decodeImageQML(QObject *item);
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/**
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* The decoding function accessible from QML. Able to set the decoding
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* of a portion of the image.
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*/
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QString decodeSubImageQML(QObject* item,
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const double offsetX = 0 , const double offsetY = 0,
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const double width = 0, const double height = 0);
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signals:
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void decodingStarted();
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void decodingFinished(bool succeeded);
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void tagFound(QString tag);
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private:
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void* decoder;
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DecoderFormatType supportedFormats;
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QObject* imageHandler;
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};
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#endif // QZXING_H
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