VTK  9.1.20211230
vtkPNGReader.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkPNGReader.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
135 #ifndef vtkPNGReader_h
136 #define vtkPNGReader_h
137 
138 #include "vtkIOImageModule.h" // For export macro
139 #include "vtkImageReader2.h"
140 
141 class VTKIOIMAGE_EXPORT vtkPNGReader : public vtkImageReader2
142 {
143 public:
144  static vtkPNGReader* New();
146  void PrintSelf(ostream& os, vtkIndent indent) override;
147 
151  int CanReadFile(VTK_FILEPATH const char* fname) override;
152 
158  const char* GetFileExtensions() override { return ".png"; }
159 
163  const char* GetDescriptiveName() override { return "PNG"; }
164 
170  void GetTextChunks(const char* key, int beginEndIndex[2]);
174  const char* GetTextKey(int index);
180  const char* GetTextValue(int index);
186 
188 
193  vtkSetMacro(ReadSpacingFromFile, bool);
194  vtkGetMacro(ReadSpacingFromFile, bool);
195  vtkBooleanMacro(ReadSpacingFromFile, bool);
197 protected:
199  ~vtkPNGReader() override;
200 
201  void ExecuteInformation() override;
203  template <class OT>
205  template <class OT>
206  void vtkPNGReaderUpdate2(OT* outPtr, int* outExt, vtkIdType* outInc, long pixSize);
207 
208 private:
209  vtkPNGReader(const vtkPNGReader&) = delete;
210  void operator=(const vtkPNGReader&) = delete;
211 
212  class vtkInternals;
213  vtkInternals* Internals;
214  bool ReadSpacingFromFile;
215 };
216 #endif
general representation of visualization data
topologically and geometrically regular array of data
Definition: vtkImageData.h:157
Superclass of binary file readers.
a simple class to control print indentation
Definition: vtkIndent.h:113
Store vtkAlgorithm input/output information.
read PNG files
Definition: vtkPNGReader.h:142
const char * GetDescriptiveName() override
Return a descriptive name for the file format that might be useful in a GUI.
Definition: vtkPNGReader.h:163
static vtkPNGReader * New()
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 * GetFileExtensions() override
Get the file extensions for this format.
Definition: vtkPNGReader.h:158
const char * GetTextKey(int index)
Returns the text key 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.
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)
void GetTextChunks(const char *key, int beginEndIndex[2])
Given a 'key' for the text chunks, fills in 'beginEndIndex' with the begin and end indexes.
~vtkPNGReader() override
int CanReadFile(VTK_FILEPATH const char *fname) override
Is the given file a PNG file?
Set of utilities for OpenTURNS<->VTK conversions.
Definition: vtkOTFilter.h:33
@ key
Definition: vtkX3D.h:263
@ index
Definition: vtkX3D.h:252
@ data
Definition: vtkX3D.h:321
int vtkIdType
Definition: vtkType.h:332
#define VTK_FILEPATH