reader.hpp
1 #pragma once
2 
3 #include "reader_config.hpp"
4 
5 #include "../image.hpp"
6 #include "cvb/rect.hpp"
7 
8 #include <typeindex>
9 #include <typeinfo>
10 
11 #include "_detail/read_result.hpp"
12 #include "_detail/read_result_1d.hpp"
13 #include "_detail/read_result_code128.hpp"
14 #include "_detail/read_result_code39_code93.hpp"
15 #include "_detail/read_result_data_matrix.hpp"
16 #include "_detail/read_result_pdf417.hpp"
17 #include "_detail/read_result_qr.hpp"
18 #include "_detail/read_result_sony_code.hpp"
19 #include "_detail/read_result_upc_e.hpp"
20 
21 namespace Cvb
22 {
23  CVB_BEGIN_INLINE_NS
24 
25  namespace Barcode
26  {
27 
29 
31  class Reader
32  {
33  public:
34 
35 
36 
38 
46  template<class T>
47  static std::shared_ptr<T> Decode(ReaderConfigPtr configMap, const ImagePlane& imagePlane, Rect<int> aoi = Rect<int>())
48  {
49  static_assert(std::is_base_of<ReadResult, T>::value, "CVB: ReadResult must be a base of T");
50  auto baseResult = Decode(configMap, imagePlane, aoi);
51  if (!baseResult)
52  return std::shared_ptr<T>();
53 
54  auto resultT = std::dynamic_pointer_cast<T>(baseResult);
55  if (!resultT)
56  throw std::runtime_error("ReadResult cannot be casted");
57 
58  return resultT;
59  }
60 
62 
70  static ReadResultPtr Decode(ReaderConfigPtr configMap, const ImagePlane& imagePlane, Rect<int> aoi = Rect<int>())
71  {
72  Cvb::CExports::cvbrect_t cRect =
73  {
74  static_cast<long>(aoi.Left()),
75  static_cast<long>(aoi.Top()),
76  static_cast<long>(aoi.Right()),
77  static_cast<long>(aoi.Bottom())
78  };
79  Cvb::CExports::cvbrect_t* pCRect = (aoi != Rect<int>()) ? &cRect : nullptr;
80 
81  configMap->Flush();
82 
83  Cvb::String barcodeText;
84  auto resultInfoH = Internal::DoResCallValueOut<CExports::CVC_BC_INFO>([&](CExports::CVC_BC_INFO& resultInfo_)
85  {
86  std::vector<char> textBuff(MaxNumCodeChar_);
87 
88  auto retVal = CVB_CALL_CAPI(CvcBcDecodeBarcode(
89  imagePlane.Parent().Handle(),
90  static_cast<long>(imagePlane.Plane()),
91  pCRect,
92  static_cast<Cvb::CExports::CVC_BC_DIRECTION>(configMap->ReadoutMode()),
93  reinterpret_cast<intptr_t>(configMap->Handle()),
94  textBuff.data(),
95  static_cast<short>(MaxNumCodeChar_),
96  &resultInfo_,
97  static_cast<short>(sizeof(CExports::CVC_BC_INFO))));
98  // string conversion
99  std::string stdString(textBuff.data());
100  barcodeText = Cvb::String(stdString.begin(), stdString.end());
101 
102  return retVal;
103  });
104 
105  // Get Ctor of specific Result type
106  auto resultSymbology = static_cast<Symbology>(resultInfoH.type);
107  auto ResultConstructor = ConfigResultMapping.at(resultSymbology);
108  auto pReadResult = ResultConstructor(resultInfoH);
109  pReadResult->text_ = barcodeText;
110 
111  // Add grading info to readResult
112  if ((resultSymbology == Symbology::DataMatrix) && configMap->ContainsSymbology(Symbology::DataMatrixGrading))
113  std::dynamic_pointer_cast<ReadResultDataMatrix>(pReadResult)->gradeResult_ = std::make_shared<GradeResultDataMatrix>(resultInfoH);
114  else if((resultSymbology == Symbology::Qr) && configMap->ContainsSymbology(Symbology::QrGrading))
115  std::dynamic_pointer_cast<ReadResultQr>(pReadResult)->gradeResult_ = std::make_shared<GradeResultQr>(resultInfoH);
116  else if (IsGradeable1DCode(resultSymbology) && configMap->ContainsSymbology(Symbology::BarcodeGrading))
117  std::dynamic_pointer_cast<ReadResult1D>(pReadResult)->gradeResult_ = std::make_shared<GradeResult1D>(resultInfoH);
118 
119  return pReadResult;
120  }
121 
122 
124 
132  static ReadResultDataMatrixPtr TeachDottedDataMatrix(ReaderConfigPtr configMap, const ImagePlane& imagePlane, Rect<int> aoi = Rect<int>())
133  {
134  if (!configMap->ContainsSymbology(Symbology::DataMatrix))
135  throw std::runtime_error("Requires a DataMatrix configuration");
136 
137  Cvb::CExports::cvbrect_t cRect =
138  {
139  static_cast<long>(aoi.Left()),
140  static_cast<long>(aoi.Top()),
141  static_cast<long>(aoi.Right()),
142  static_cast<long>(aoi.Bottom())
143  };
144  Cvb::CExports::cvbrect_t* pCRect = (aoi != Rect<int>()) ? &cRect : nullptr;
145 
146  configMap->Flush();
147 
148  Cvb::String barcodeText;
149  auto resultInfoH = Internal::DoResCallValueOut<CExports::CVC_BC_INFO>([&](CExports::CVC_BC_INFO& resultInfo_)
150  {
151  std::vector<char> textBuff(MaxNumCodeChar_);
152 
153  auto retVal = CVB_CALL_CAPI(CvcBcTeachDottedDataMatrix(
154  imagePlane.Parent().Handle(),
155  static_cast<long>(imagePlane.Plane()),
156  pCRect,
157  static_cast<Cvb::CExports::CVC_BC_DIRECTION>(configMap->ReadoutMode()),
158  reinterpret_cast<intptr_t>(configMap->Handle()),
159  textBuff.data(),
160  static_cast<short>(MaxNumCodeChar_),
161  &resultInfo_,
162  static_cast<short>(sizeof(CExports::CVC_BC_INFO))));
163  // string conversion
164  std::string stdString(textBuff.data());
165  barcodeText = Cvb::String(stdString.begin(), stdString.end());
166 
167  return retVal;
168  });
169 
170  auto dataMatrixResult = std::make_shared<ReadResultDataMatrix>(resultInfoH);
171  dataMatrixResult->text_ = barcodeText;
172  return dataMatrixResult;
173  }
174 
175  private:
176  //Reader();
177  static const size_t MaxNumCodeChar_ = 7090;
178 
179  static const std::map<Cvb::Barcode::Symbology, std::function<ReadResultPtr(Cvb::CExports::CVC_BC_INFO&)> > ConfigResultMapping;
180 
181  private:
182  static bool IsGradeable1DCode(Symbology sym)
183  {
184  switch (sym)
185  {
186  case Symbology::Code128:
187  case Symbology::Codabar:
188  case Symbology::Ean13:
189  case Symbology::Ean8:
190  case Symbology::UpcA:
191  case Symbology::UpcE:
192  case Symbology::Code39:
193  case Symbology::Code93:
194  case Symbology::Discrete2of5:
195  case Symbology::Interleaved2of5:
196  case Symbology::Code32:
197  case Symbology::PharmaCode:
198  case Symbology::SonyCode:
199  case Symbology::RSS:
200  case Symbology::MsiPlessey:
201  case Symbology::Code11:
202  return true;
203  default:
204  return false;
205  }
206  }
207  };
208  }
209 
210  CVB_END_INLINE_NS
211 }
212 
213 
214 const std::map<Cvb::Barcode::Symbology, std::function<Cvb::Barcode::ReadResultPtr(Cvb::CExports::CVC_BC_INFO&)> > Cvb::Barcode::Reader::ConfigResultMapping =
215 {
216  { Cvb::Barcode::Symbology::Codabar, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult1D>(handle); } },
217  { Cvb::Barcode::Symbology::Code11, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult1D>(handle); } },
218  { Cvb::Barcode::Symbology::Code32, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult>(handle); } },
219  { Cvb::Barcode::Symbology::Discrete2of5, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult1D>(handle); } },
220  { Cvb::Barcode::Symbology::Ean8, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult1D>(handle); } },
221  { Cvb::Barcode::Symbology::Ean13, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult1D>(handle); } },
222  { Cvb::Barcode::Symbology::FourStateAustralian, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult>(handle); } },
223  { Cvb::Barcode::Symbology::FourStateKix, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult>(handle); } },
224  { Cvb::Barcode::Symbology::FourStateRoyalMail, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult>(handle); } },
225  { Cvb::Barcode::Symbology::FourStateUsps, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult>(handle); } },
226  { Cvb::Barcode::Symbology::Interleaved2of5, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult1D>(handle); } },
227  { Cvb::Barcode::Symbology::MicroPdf417, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult>(handle); } },
228  { Cvb::Barcode::Symbology::MsiPlessey, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult1D>(handle); } },
229  { Cvb::Barcode::Symbology::PharmaCode, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult>(handle); } },
230  { Cvb::Barcode::Symbology::Planet, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult>(handle); } },
231  { Cvb::Barcode::Symbology::Postnet, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult>(handle); } },
232  { Cvb::Barcode::Symbology::RSS, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult1D>(handle); } },
233  { Cvb::Barcode::Symbology::UpcA, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResult1D>(handle); } },
234  { Cvb::Barcode::Symbology::UpcE, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResultUpcE>(handle); } },
235  { Cvb::Barcode::Symbology::Pdf417, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResultPdf417>(handle); } },
236  { Cvb::Barcode::Symbology::DataMatrix, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResultDataMatrix>(handle); } },
237  { Cvb::Barcode::Symbology::PharmaCode2D, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResultDataMatrix>(handle); } },
238  { Cvb::Barcode::Symbology::Qr, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResultQr>(handle); } },
239  { Cvb::Barcode::Symbology::SonyCode, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResultSonyCode>(handle); } },
240  { Cvb::Barcode::Symbology::Code128, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResultCode128>(handle); } },
241  { Cvb::Barcode::Symbology::Code39, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResultCode39Code93>(handle); } },
242  { Cvb::Barcode::Symbology::Code93, [](Cvb::CExports::CVC_BC_INFO& handle) { return std::make_shared<Cvb::Barcode::ReadResultCode39Code93>(handle); } }
243 };
std::shared_ptr
STL class.
Cvb::ImagePlane
Image plane information container.
Definition: decl_image_plane.hpp:31
Cvb::Barcode::Reader
The key class for reading barcodes.
Definition: reader.hpp:31
Cvb::Barcode::Symbology::FourStateRoyalMail
Four State Royal Mail Barcode.
Cvb::String
std::string String
String for wide characters or unicode characters.
Definition: string.hpp:45
Cvb::Barcode::Symbology::MicroPdf417
Micro PDF417 Matrix Code.
Cvb::Barcode::Symbology
Symbology
The symbologies supported by Barcode.
Definition: barcode.hpp:96
Cvb::ImagePlane::Parent
const Image & Parent() const noexcept
Image to which this plane descriptor refers to.
Definition: detail_image_plane.hpp:87
std::map
STL class.
Cvb::ImagePlane::Plane
int Plane() const noexcept
Plane index in the image, to which this plane refers to.
Definition: decl_image_plane.hpp:169
std::string
STL class.
Cvb
Root namespace for the Image Manager interface.
Definition: version.hpp:11
Cvb::Barcode::Reader::TeachDottedDataMatrix
static ReadResultDataMatrixPtr TeachDottedDataMatrix(ReaderConfigPtr configMap, const ImagePlane &imagePlane, Rect< int > aoi=Rect< int >())
Teach a dotted data matrix code into a configuration.
Definition: reader.hpp:132
Cvb::Image::Handle
void * Handle() const noexcept
Classic API image handle.
Definition: decl_image.hpp:223
std::vector
STL class.
Cvb::Barcode::Reader::Decode
static ReadResultPtr Decode(ReaderConfigPtr configMap, const ImagePlane &imagePlane, Rect< int > aoi=Rect< int >())
This function initiates the decoding of barcodes.
Definition: reader.hpp:70
Cvb::Barcode::Symbology::FourStateAustralian
Four State Australian Barcode.
Cvb::Barcode::Reader::Decode
static std::shared_ptr< T > Decode(ReaderConfigPtr configMap, const ImagePlane &imagePlane, Rect< int > aoi=Rect< int >())
This function initiates the decoding of barcodes and dynamically casts the result.
Definition: reader.hpp:47
Cvb::Barcode::ReadResultPtr
std::shared_ptr< ReadResult > ReadResultPtr
Convenience shared pointer for ReadResult.
Definition: barcode.hpp:63
CVB++ generated on Tue Jul 5 2022 12:08:24   Stemmer Logo