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/*=========================================================================
Program: Visualization Toolkit
Module: vtkDataArrayTemplateHelper.cxx
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.
=========================================================================*/
#include "vtkDataArrayTemplateHelper.h"
#include "vtkDataArrayIteratorMacro.h"
#include "vtkDataArrayTemplate.h"
//------------------------------------------------------------------------------
void vtkDataArrayTemplateHelper::InsertTuples(
vtkDataArray *dst, vtkIdType dstStart, vtkIdType n, vtkIdType srcStart,
vtkAbstractArray *source)
{
vtkIdType srcEnd = srcStart + n;
if (srcEnd > source->GetNumberOfTuples())
{
vtkWarningWithObjectMacro(dst,
"Source range exceeds array size (srcStart="
<< srcStart << ", n=" << n << ", numTuples="
<< source->GetNumberOfTuples() << ").");
return;
}
// Find maximum destination id and resize if needed
vtkIdType dstEnd = dstStart + n;
vtkIdType maxSize = dstEnd * dst->GetNumberOfComponents();
if (maxSize > dst->GetSize())
{
void *resizeResult(NULL);
switch (dst->GetDataType())
{
vtkTemplateMacro(resizeResult =
static_cast<vtkDataArrayTemplate<VTK_TT>*>(dst)->ResizeAndExtend(maxSize);
);
}
if (resizeResult == NULL)
{
vtkWarningWithObjectMacro(dst, "Failed to allocate memory.");
return;
}
}
// TypedDataArrays and their subclasses have iterator interfaces:
if (source->GetArrayType() == vtkAbstractArray::TypedDataArray)
{
switch (source->GetDataType())
{
vtkDataArrayIteratorMacro(
source,
std::copy(vtkDABegin + srcStart, vtkDABegin + srcEnd,
static_cast<vtkDataArrayTemplate<vtkDAValueType>*>(dst)
->Begin() + dstStart)
);
}
}
else if (vtkDataArray *dataSource = vtkDataArray::FastDownCast(source))
{
// Otherwise use the double interface
for (vtkIdType i = 0; i < n; ++i)
{
dst->SetTuple(dstStart + i, dataSource->GetTuple(srcStart + i));
}
}
else
{
vtkWarningWithObjectMacro(dst,
"Input array is not a vtkDataArray subclass!");
return;
}
vtkIdType maxId = maxSize - 1;
if (maxId > dst->MaxId)
{
dst->MaxId = maxId;
}
dst->DataChanged();
}
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