VTK  9.3.1
vtkPNGReader.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
20 #ifndef vtkPNGReader_h
21 #define vtkPNGReader_h
22 
23 #include "vtkIOImageModule.h" // For export macro
24 #include "vtkImageReader2.h"
25 #include "vtkSmartPointer.h" // For vtkSmartPointer
26 
27 VTK_ABI_NAMESPACE_BEGIN
28 class vtkStringArray;
29 VTK_ABI_NAMESPACE_END
30 
31 VTK_ABI_NAMESPACE_BEGIN
32 class VTKIOIMAGE_EXPORT vtkPNGReader : public vtkImageReader2
33 {
34 public:
35  static vtkPNGReader* New();
36  vtkTypeMacro(vtkPNGReader, vtkImageReader2);
37  void PrintSelf(ostream& os, vtkIndent indent) override;
38 
42  int CanReadFile(VTK_FILEPATH const char* fname) override;
43 
49  const char* GetFileExtensions() override { return ".png"; }
50 
54  const char* GetDescriptiveName() override { return "PNG"; }
55 
61  void GetTextChunks(const char* key, int beginEndIndex[2]);
62 
64 
67  const char* GetTextKey(int index);
68  vtkStringArray* GetTextKeys();
70 
72 
77  const char* GetTextValue(int index);
78  vtkStringArray* GetTextValues();
80 
85  size_t GetNumberOfTextChunks();
86 
88 
93  vtkSetMacro(ReadSpacingFromFile, bool);
94  vtkGetMacro(ReadSpacingFromFile, bool);
95  vtkBooleanMacro(ReadSpacingFromFile, bool);
97 protected:
98  vtkPNGReader();
99  ~vtkPNGReader() override;
100 
101  void ExecuteInformation() override;
102  void ExecuteDataWithInformation(vtkDataObject* out, vtkInformation* outInfo) override;
103  template <class OT>
104  void vtkPNGReaderUpdate(vtkImageData* data, OT* outPtr);
105  template <class OT>
106  void vtkPNGReaderUpdate2(OT* outPtr, int* outExt, vtkIdType* outInc, long pixSize);
107 
108 private:
109  vtkPNGReader(const vtkPNGReader&) = delete;
110  void operator=(const vtkPNGReader&) = delete;
111 
112  class vtkInternals;
113  vtkInternals* Internals;
114  bool ReadSpacingFromFile;
115 };
116 VTK_ABI_NAMESPACE_END
117 #endif
static vtkImageReader2 * New()
Store vtkAlgorithm input/output information.
virtual int CanReadFile(VTK_FILEPATH const char *vtkNotUsed(fname))
Return non zero if the reader can read the given file name.
a vtkAbstractArray subclass for strings
int vtkIdType
Definition: vtkType.h:315
const char * GetFileExtensions() override
Get the file extensions for this format.
Definition: vtkPNGReader.h:49
void ExecuteDataWithInformation(vtkDataObject *data, vtkInformation *outInfo) override
This is a convenience method that is implemented in many subclasses instead of RequestData.
a simple class to control print indentation
Definition: vtkIndent.h:28
read PNG files
Definition: vtkPNGReader.h:32
topologically and geometrically regular array of data
Definition: vtkImageData.h:42
virtual void ExecuteInformation()
const char * GetDescriptiveName() override
Return a descriptive name for the file format that might be useful in a GUI.
Definition: vtkPNGReader.h:54
Superclass of binary file readers.
#define VTK_FILEPATH
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
general representation of visualization data
Definition: vtkDataObject.h:54
Set of utilities for OpenTURNS<->VTK conversions.
Definition: vtkOTFilter.h:20