vtkMappedDataArray.h

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/*==============================================================================

  Program:   Visualization Toolkit
  Module:    vtkMappedDataArray.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 vtkMappedDataArray_h
#define vtkMappedDataArray_h

#include "vtkTypedDataArray.h"

template <class Scalar>
class vtkMappedDataArray : public vtkTypedDataArray<Scalar>
{
public:
  vtkTemplateTypeMacro(vtkMappedDataArray<Scalar>, vtkTypedDataArray<Scalar>)
  typedef typename Superclass::ValueType ValueType;

  static vtkMappedDataArray<Scalar>* FastDownCast(vtkAbstractArray *source);

  void PrintSelf(ostream &os, vtkIndent indent) override;

  // vtkAbstractArray virtual method that must be reimplemented.
  void DeepCopy(vtkAbstractArray *aa) override = 0;
  vtkVariant GetVariantValue(vtkIdType idx) override = 0;
  void SetVariantValue(vtkIdType idx, vtkVariant value) override = 0;
  void GetTuples(vtkIdList *ptIds, vtkAbstractArray *output) override = 0;
  void GetTuples(vtkIdType p1, vtkIdType p2, vtkAbstractArray *output) override = 0;
  void InterpolateTuple(vtkIdType i, vtkIdList *ptIndices,
                        vtkAbstractArray *source, double *weights) override = 0;
  void InterpolateTuple(vtkIdType i, vtkIdType id1,
                        vtkAbstractArray* source1, vtkIdType id2,
                        vtkAbstractArray* source2, double t) override = 0;

  // vtkDataArray virtual method that must be reimplemented.
  void DeepCopy(vtkDataArray *da) override = 0;

  void * GetVoidPointer(vtkIdType id) override;

  void ExportToVoidPointer(void *ptr) override;

  void DataChanged() override;


  void SetVoidArray(void *, vtkIdType, int) override;
  void SetVoidArray(void *, vtkIdType, int, int) override;


  void * WriteVoidPointer(vtkIdType /*id*/, vtkIdType /*number*/) override
  {
    vtkErrorMacro(<<"WriteVoidPointer: Method not implemented.");
    return nullptr;
  }

  void Modified() override;

  // vtkAbstractArray override:
  bool HasStandardMemoryLayout() override { return false; }

protected:
  vtkMappedDataArray();
  ~vtkMappedDataArray() override;

  int GetArrayType() override
  {
    return vtkAbstractArray::MappedDataArray;
  }

private:
  vtkMappedDataArray(const vtkMappedDataArray &) = delete;
  void operator=(const vtkMappedDataArray &) = delete;


  ValueType *TemporaryScalarPointer;
  size_t TemporaryScalarPointerSize;
};

// Declare vtkArrayDownCast implementations for mapped containers:
vtkArrayDownCast_TemplateFastCastMacro(vtkMappedDataArray)

#include "vtkMappedDataArray.txx"

// Adds an implementation of NewInstanceInternal() that returns an AoS
// (unmapped) VTK array, if possible. Use this in combination with
// vtkAbstractTemplateTypeMacro when your subclass is a template class.
// Otherwise, use vtkMappedDataArrayTypeMacro.
#define vtkMappedDataArrayNewInstanceMacro(thisClass) \
  protected: \
  vtkObjectBase *NewInstanceInternal() const override  \
  { \
    if (vtkDataArray *da = \
        vtkDataArray::CreateDataArray(thisClass::VTK_DATA_TYPE)) \
    { \
      return da; \
    } \
    return thisClass::New(); \
  } \
  public:

// Same as vtkTypeMacro, but adds an implementation of NewInstanceInternal()
// that returns a standard (unmapped) VTK array, if possible.
#define vtkMappedDataArrayTypeMacro(thisClass, superClass) \
  vtkAbstractTypeMacroWithNewInstanceType(thisClass, superClass, vtkDataArray) \
  vtkMappedDataArrayNewInstanceMacro(thisClass)

#endif //vtkMappedDataArray_h

// VTK-HeaderTest-Exclude: vtkMappedDataArray.h