84 lines
2.7 KiB
C++
84 lines
2.7 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 "Content.h"
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#include "Error.h"
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#include "StructuredAppend.h"
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#include <memory>
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#include <string>
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#include <utility>
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namespace ZXing {
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class CustomData;
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class DecoderResult
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{
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Content _content;
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std::string _ecLevel;
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int _lineCount = 0;
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int _versionNumber = 0;
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StructuredAppendInfo _structuredAppend;
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bool _isMirrored = false;
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bool _readerInit = false;
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Error _error;
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std::shared_ptr<CustomData> _extra;
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DecoderResult(const DecoderResult &) = delete;
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DecoderResult& operator=(const DecoderResult &) = delete;
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public:
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DecoderResult() = default;
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DecoderResult(Error error) : _error(std::move(error)) {}
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DecoderResult(Content&& bytes) : _content(std::move(bytes)) {}
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DecoderResult(DecoderResult&&) noexcept = default;
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DecoderResult& operator=(DecoderResult&&) noexcept = default;
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bool isValid(bool includeErrors = false) const
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{
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return (!_content.bytes.empty() && !_error) || (includeErrors && !!_error);
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}
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const Content& content() const & { return _content; }
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Content&& content() && { return std::move(_content); }
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// to keep the unit tests happy for now:
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std::wstring text() const { return _content.utfW(); }
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std::string symbologyIdentifier() const { return _content.symbology.toString(false); }
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// Simple macro to set up getter/setter methods that save lots of boilerplate.
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// It sets up a standard 'const & () const', 2 setters for setting lvalues via
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// copy and 2 for setting rvalues via move. They are provided each to work
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// either on lvalues (normal 'void (...)') or on rvalues (returning '*this' as
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// rvalue). The latter can be used to optionally initialize a temporary in a
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// return statement, e.g.
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// return DecoderResult(bytes, text).setEcLevel(level);
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#define ZX_PROPERTY(TYPE, GETTER, SETTER) \
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const TYPE& GETTER() const & { return _##GETTER; } \
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TYPE&& GETTER() && { return std::move(_##GETTER); } \
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void SETTER(const TYPE& v) & { _##GETTER = v; } \
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void SETTER(TYPE&& v) & { _##GETTER = std::move(v); } \
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DecoderResult&& SETTER(const TYPE& v) && { _##GETTER = v; return std::move(*this); } \
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DecoderResult&& SETTER(TYPE&& v) && { _##GETTER = std::move(v); return std::move(*this); }
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ZX_PROPERTY(std::string, ecLevel, setEcLevel)
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ZX_PROPERTY(int, lineCount, setLineCount)
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ZX_PROPERTY(int, versionNumber, setVersionNumber)
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ZX_PROPERTY(StructuredAppendInfo, structuredAppend, setStructuredAppend)
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ZX_PROPERTY(Error, error, setError)
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ZX_PROPERTY(bool, isMirrored, setIsMirrored)
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ZX_PROPERTY(bool, readerInit, setReaderInit)
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ZX_PROPERTY(std::shared_ptr<CustomData>, extra, setExtra)
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#undef ZX_PROPERTY
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};
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} // ZXing
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