VTK  9.3.0
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
27VTK_ABI_NAMESPACE_BEGIN
28class vtkStringArray;
29VTK_ABI_NAMESPACE_END
30
31VTK_ABI_NAMESPACE_BEGIN
32class VTKIOIMAGE_EXPORT vtkPNGReader : public vtkImageReader2
33{
34public:
35 static vtkPNGReader* New();
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);
70
72
77 const char* GetTextValue(int index);
80
86
88
93 vtkSetMacro(ReadSpacingFromFile, bool);
94 vtkGetMacro(ReadSpacingFromFile, bool);
95 vtkBooleanMacro(ReadSpacingFromFile, bool);
97protected:
99 ~vtkPNGReader() override;
100
101 void ExecuteInformation() 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
108private:
109 vtkPNGReader(const vtkPNGReader&) = delete;
110 void operator=(const vtkPNGReader&) = delete;
111
112 class vtkInternals;
113 vtkInternals* Internals;
114 bool ReadSpacingFromFile;
115};
116VTK_ABI_NAMESPACE_END
117#endif
general representation of visualization data
topologically and geometrically regular array of data
Superclass of binary file readers.
a simple class to control print indentation
Definition vtkIndent.h:29
Store vtkAlgorithm input/output information.
read PNG files
const char * GetTextValue(int index)
Returns the text value stored at 'index'.
void ExecuteInformation() override
size_t GetNumberOfTextChunks()
Return the number of text chunks in the PNG file.
const char * GetDescriptiveName() override
Return a descriptive name for the file format that might be useful in a GUI.
vtkStringArray * GetTextValues()
Returns the text value stored at 'index'.
void vtkPNGReaderUpdate(vtkImageData *data, OT *outPtr)
void ExecuteDataWithInformation(vtkDataObject *out, vtkInformation *outInfo) override
This is a convenience method that is implemented in many subclasses instead of RequestData.
static vtkPNGReader * New()
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void vtkPNGReaderUpdate2(OT *outPtr, int *outExt, vtkIdType *outInc, long pixSize)
const char * GetTextKey(int index)
Returns the text key stored at 'index'.
void GetTextChunks(const char *key, int beginEndIndex[2])
Given a 'key' for the text chunks, fills in 'beginEndIndex' with the begin and end indexes.
const char * GetFileExtensions() override
Get the file extensions for this format.
~vtkPNGReader() override
vtkStringArray * GetTextKeys()
Returns the text key stored at 'index'.
int CanReadFile(VTK_FILEPATH const char *fname) override
Is the given file a PNG file?
a vtkAbstractArray subclass for strings
Set of utilities for OpenTURNS<->VTK conversions.
Definition vtkOTFilter.h:21
int vtkIdType
Definition vtkType.h:315
#define VTK_FILEPATH