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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkDataObjectImplicitBackendInterface.h"
#include "vtkCommand.h"
#include "vtkDataObject.h"
#include "vtkFieldData.h"
VTK_ABI_NAMESPACE_BEGIN
//------------------------------------------------------------------------------
template <typename ValueType>
vtkDataObjectImplicitBackendInterface<ValueType>::vtkDataObjectImplicitBackendInterface(
vtkDataObject* dataobject, const std::string& arrayName, int attributeType)
: DataObject(dataobject)
, ArrayName(arrayName)
, AttributeType(attributeType)
{
this->DataObject->AddObserver(
vtkCommand::DeleteEvent, this, &vtkDataObjectImplicitBackendInterface::OnDataObjectDeleted);
}
//------------------------------------------------------------------------------
template <typename ValueType>
vtkDataObjectImplicitBackendInterface<ValueType>::~vtkDataObjectImplicitBackendInterface() =
default;
//------------------------------------------------------------------------------
template <typename ValueType>
void vtkDataObjectImplicitBackendInterface<ValueType>::OnDataObjectDeleted(
vtkObject* vtkNotUsed(caller), unsigned long eventId, void* vtkNotUsed(calldata))
{
if (eventId != vtkCommand::DeleteEvent)
{
return;
}
this->Cache = vtkSmartPointer<vtkAOSDataArrayTemplate<ValueType>>::New();
vtkDataArray* self = this->GetArray();
this->Cache->DeepCopy(self);
}
//------------------------------------------------------------------------------
template <typename ValueType>
ValueType vtkDataObjectImplicitBackendInterface<ValueType>::operator()(vtkIdType index) const
{
if (this->DataObject)
{
return this->GetValueFromDataObject(index);
}
return this->Cache->GetValue(index);
}
//------------------------------------------------------------------------------
template <typename ValueType>
vtkDataArray* vtkDataObjectImplicitBackendInterface<ValueType>::GetArray()
{
return this->DataObject->GetAttributesAsFieldData(this->AttributeType)
->GetArray(this->ArrayName.c_str());
}
VTK_ABI_NAMESPACE_END
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