vtkImageReader2.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkImageReader2.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef vtkImageReader2_h
#define vtkImageReader2_h
 
#include "vtkIOImageModule.h" // For export macro
#include "vtkImageAlgorithm.h"
 
class vtkStringArray;
 
#define VTK_FILE_BYTE_ORDER_BIG_ENDIAN 0
#define VTK_FILE_BYTE_ORDER_LITTLE_ENDIAN 1
 
class VTKIOIMAGE_EXPORT vtkImageReader2 : public vtkImageAlgorithm
{
public:
  static vtkImageReader2* New();
  vtkTypeMacro(vtkImageReader2, vtkImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  virtual void SetFileName(const char*);
  vtkGetStringMacro(FileName);
 
 
  virtual void SetFileNames(vtkStringArray*);
  vtkGetObjectMacro(FileNames, vtkStringArray);
 
 
  virtual void SetFilePrefix(const char*);
  vtkGetStringMacro(FilePrefix);
 
 
  virtual void SetFilePattern(const char*);
  vtkGetStringMacro(FilePattern);
 
  virtual void SetMemoryBuffer(const void*);
  virtual const void* GetMemoryBuffer() { return this->MemoryBuffer; }
 
  virtual void SetMemoryBufferLength(vtkIdType buflen);
  vtkIdType GetMemoryBufferLength() { return this->MemoryBufferLength; }
 
  virtual void SetDataScalarType(int type);
  virtual void SetDataScalarTypeToFloat() { this->SetDataScalarType(VTK_FLOAT); }
  virtual void SetDataScalarTypeToDouble() { this->SetDataScalarType(VTK_DOUBLE); }
  virtual void SetDataScalarTypeToInt() { this->SetDataScalarType(VTK_INT); }
  virtual void SetDataScalarTypeToUnsignedInt() { this->SetDataScalarType(VTK_UNSIGNED_INT); }
  virtual void SetDataScalarTypeToShort() { this->SetDataScalarType(VTK_SHORT); }
  virtual void SetDataScalarTypeToUnsignedShort() { this->SetDataScalarType(VTK_UNSIGNED_SHORT); }
  virtual void SetDataScalarTypeToChar() { this->SetDataScalarType(VTK_CHAR); }
  virtual void SetDataScalarTypeToSignedChar() { this->SetDataScalarType(VTK_SIGNED_CHAR); }
  virtual void SetDataScalarTypeToUnsignedChar() { this->SetDataScalarType(VTK_UNSIGNED_CHAR); }
 
 
  vtkGetMacro(DataScalarType, int);
 
 
  vtkSetMacro(NumberOfScalarComponents, int);
  vtkGetMacro(NumberOfScalarComponents, int);
 
 
  vtkSetVector6Macro(DataExtent, int);
  vtkGetVector6Macro(DataExtent, int);
 
 
  vtkSetMacro(FileDimensionality, int);
  int GetFileDimensionality() { return this->FileDimensionality; }
 
 
  vtkSetVector3Macro(DataSpacing, double);
  vtkGetVector3Macro(DataSpacing, double);
 
 
  vtkSetVector3Macro(DataOrigin, double);
  vtkGetVector3Macro(DataOrigin, double);
 
 
  vtkSetVectorMacro(DataDirection, double, 9);
  vtkGetVectorMacro(DataDirection, double, 9);
 
 
  unsigned long GetHeaderSize();
  unsigned long GetHeaderSize(unsigned long slice);
 
  virtual void SetHeaderSize(unsigned long size);
 
 
  virtual void SetDataByteOrderToBigEndian();
  virtual void SetDataByteOrderToLittleEndian();
  virtual int GetDataByteOrder();
  virtual void SetDataByteOrder(int);
  virtual const char* GetDataByteOrderAsString();
 
 
  vtkSetMacro(FileNameSliceOffset, int);
  vtkGetMacro(FileNameSliceOffset, int);
 
 
  vtkSetMacro(FileNameSliceSpacing, int);
  vtkGetMacro(FileNameSliceSpacing, int);
 
 
  vtkSetMacro(SwapBytes, vtkTypeBool);
  virtual vtkTypeBool GetSwapBytes() { return this->SwapBytes; }
  vtkBooleanMacro(SwapBytes, vtkTypeBool);
 
  istream* GetFile() { return this->File; }
  vtkGetVectorMacro(DataIncrements, unsigned long, 4);
 
  virtual int OpenFile();
  void CloseFile();
  virtual void SeekFile(int i, int j, int k);
 
 
  vtkBooleanMacro(FileLowerLeft, vtkTypeBool);
  vtkGetMacro(FileLowerLeft, vtkTypeBool);
  vtkSetMacro(FileLowerLeft, vtkTypeBool);
 
 
  virtual void ComputeInternalFileName(int slice);
  vtkGetStringMacro(InternalFileName);
 
  virtual int CanReadFile(const char* vtkNotUsed(fname)) { return 0; }
 
  virtual const char* GetFileExtensions() { return nullptr; }
 
 
  virtual const char* GetDescriptiveName() { return nullptr; }
 
protected:
  vtkImageReader2();
  ~vtkImageReader2() override;
 
  vtkStringArray* FileNames;
 
  char* InternalFileName;
  char* FileName;
  char* FilePrefix;
  char* FilePattern;
  int NumberOfScalarComponents;
  vtkTypeBool FileLowerLeft;
 
  const void* MemoryBuffer;
  vtkIdType MemoryBufferLength;
 
  istream* File;
  unsigned long DataIncrements[4];
  int DataExtent[6];
  vtkTypeBool SwapBytes;
 
  int FileDimensionality;
  unsigned long HeaderSize;
  int DataScalarType;
  unsigned long ManualHeaderSize;
 
  double DataSpacing[3];
  double DataOrigin[3];
  double DataDirection[9];
 
  int FileNameSliceOffset;
  int FileNameSliceSpacing;
 
  int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
  virtual void ExecuteInformation();
  void ExecuteDataWithInformation(vtkDataObject* data, vtkInformation* outInfo) override;
  virtual void ComputeDataIncrements();
 
private:
  vtkImageReader2(const vtkImageReader2&) = delete;
  void operator=(const vtkImageReader2&) = delete;
};
 
#endif