78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
/*
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* Copyright 2016 Nu-book Inc.
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* Copyright 2016 ZXing authors
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*/
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "QRECB.h"
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#include "QRErrorCorrectionLevel.h"
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#include <array>
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#include <initializer_list>
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#include <vector>
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namespace ZXing {
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class BitMatrix;
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namespace QRCode {
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/**
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* See ISO 18004:2006 Annex D
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*
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* @author Sean Owen
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*/
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class Version
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{
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public:
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int versionNumber() const { return _versionNumber; }
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const std::vector<int>& alignmentPatternCenters() const { return _alignmentPatternCenters; }
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int totalCodewords() const { return _totalCodewords; }
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int dimension() const { return DimensionOfVersion(_versionNumber, _isMicro); }
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const ECBlocks& ecBlocksForLevel(ErrorCorrectionLevel ecLevel) const { return _ecBlocks[(int)ecLevel]; }
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BitMatrix buildFunctionPattern() const;
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bool isMicroQRCode() const { return _isMicro; }
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static constexpr int DimensionStep(bool isMicro) { return std::array{4, 2}[isMicro]; }
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static constexpr int DimensionOffset(bool isMicro) { return std::array{17, 9}[isMicro]; }
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static constexpr int DimensionOfVersion(int version, bool isMicro)
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{
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return DimensionOffset(isMicro) + DimensionStep(isMicro) * version;
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}
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/**
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* <p>Deduces version information purely from micro QR or QR Code dimensions.</p>
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*
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* @param dimension dimension in modules
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* @return Version for a QR Code of that dimension
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*/
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static const Version* FromDimension(int dimension);
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static const Version* FromNumber(int versionNumber, bool isMicro = false);
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static const Version* DecodeVersionInformation(int versionBitsA, int versionBitsB = 0);
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private:
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int _versionNumber;
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std::vector<int> _alignmentPatternCenters;
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std::array<ECBlocks, 4> _ecBlocks;
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int _totalCodewords;
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bool _isMicro;
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Version(int versionNumber, std::initializer_list<int> alignmentPatternCenters, const std::array<ECBlocks, 4> &ecBlocks);
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Version(int versionNumber, const std::array<ECBlocks, 4>& ecBlocks);
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static const Version* AllVersions();
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static const Version* AllMicroVersions();
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};
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} // QRCode
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} // ZXing
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