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/*=========================================================================
Program: Visualization Toolkit
Module: vtkIndexedArray.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.
=========================================================================*/
// Funded by CEA, DAM, DIF, F-91297 Arpajon, France
#ifndef vtkIndexedArray_h
#define vtkIndexedArray_h
#ifdef VTK_INDEXED_ARRAY_INSTANTIATING
#define VTK_IMPLICIT_VALUERANGE_INSTANTIATING
#include "vtkDataArrayPrivate.txx"
#endif
#include "vtkCommonImplicitArraysModule.h" // for export macro
#include "vtkImplicitArray.h"
#include "vtkIndexedImplicitBackend.h" // for the array backend
#ifdef VTK_INDEXED_ARRAY_INSTANTIATING
#undef VTK_IMPLICIT_VALUERANGE_INSTANTIATING
#endif
#include <vector>
/**
* \var vtkIndexedArray
* \brief A utility alias for creating a wrapper array around an existing array and reindexing its
* components
*
* In order to be usefully included in the dispatchers, these arrays need to be instantiated at the
* vtk library compile time.
*
* An example of potential usage:
* ```
* vtkNew<vtkIntArray> baseArray;
* baseArray->SetNumberOfComponents(1);
* baseArray->SetNumberOfTuples(100);
* auto range = vtk::DataArrayValueRange<1>(baseArray);
* std::iota(range.begin(), range.end(), 0);
*
* vtkNew<vtkIdList> handles;
* handles->SetNumberOfIds(100);
* for (vtkIdType idx = 0; idx < 100; idx++)
* {
* handles->SetId(idx, 99-idx);
* }
*
* vtkNew<vtkIndexed<int>> indexedArr;
* indexedArr->SetBackend(std::make_shared<vtkIndexedImplicitBackend<int>>(handles, baseArray));
* indexedArr->SetNumberOfComponents(1);
* indexedArr->SetNumberOfTuples(100);
* CHECK(indexedArr->GetValue(57) == 42); // always true
* ```
*
* @sa
* vtkImplicitArray vtkIndexedImplicitBackend
*/
VTK_ABI_NAMESPACE_BEGIN
template <typename T>
using vtkIndexedArray = vtkImplicitArray<vtkIndexedImplicitBackend<T>>;
VTK_ABI_NAMESPACE_END
#endif // vtkIndexedArray_h
#ifdef VTK_INDEXED_ARRAY_INSTANTIATING
#define VTK_INSTANTIATE_INDEXED_ARRAY(ValueType) \
VTK_ABI_NAMESPACE_BEGIN \
template class VTKCOMMONIMPLICITARRAYS_EXPORT \
vtkImplicitArray<vtkIndexedImplicitBackend<ValueType>>; \
VTK_ABI_NAMESPACE_END \
namespace vtkDataArrayPrivate \
{ \
VTK_ABI_NAMESPACE_BEGIN \
VTK_INSTANTIATE_VALUERANGE_ARRAYTYPE( \
vtkImplicitArray<vtkIndexedImplicitBackend<ValueType>>, double) \
VTK_ABI_NAMESPACE_END \
}
#endif
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