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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright 2011 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov
/**
* @class vtkDescriptiveStatistics
* @brief Private implementation for bivariate
* statistics algorithms.
*
*
* The main purpose of this class is to avoid exposure of STL container
* through the APIs of the vtkStatistics classes APIs
*
* @par Thanks:
* Thanks to Philippe Pebay and David Thompson from Sandia National Laboratories
* for implementing this class.
*/
#ifndef vtkStatisticsAlgorithmPrivate_h
#define vtkStatisticsAlgorithmPrivate_h
#include "vtkStdString.h"
#include <set> // used to iterate over internal organs
VTK_ABI_NAMESPACE_BEGIN
class vtkStatisticsAlgorithmPrivate
{
public:
// --------------------------------------------------------------------
/**
* Empty current set of requests
*/
void ResetRequests() { this->Requests.clear(); }
// --------------------------------------------------------------------
///@{
/**
* Empty current buffer
*/
int ResetBuffer()
{
int rval = this->Buffer.empty() ? 0 : 1;
this->Buffer.clear();
return rval;
}
// --------------------------------------------------------------------
int SetBufferColumnStatus(const char* colName, int status)
{
if (status)
{
return this->Buffer.insert(colName).second ? 1 : 0;
}
else
{
return this->Buffer.erase(colName) ? 1 : 0;
}
}
// --------------------------------------------------------------------
int AddBufferToRequests()
{
bool result = false;
// Don't add empty selections to the list of requests.
if (!this->Buffer.empty())
{
result = this->Requests.insert(this->Buffer).second;
}
return result ? 1 : 0;
}
// --------------------------------------------------------------------
///@}
///@{
/**
* This function does not use the buffer like other column selection methods.
*/
int AddColumnToRequests(const char* col)
{
if (col && *col)
{
std::set<vtkStdString> tmp;
tmp.insert(col);
if (this->Requests.insert(tmp).second)
{
return 1;
}
}
return 0;
}
// --------------------------------------------------------------------
///@}
///@{
/**
* This function does not use the buffer like other column selection methods.
*/
int AddColumnPairToRequests(const char* cola, const char* colb)
{
if (cola && colb && *cola && *colb)
{
std::set<vtkStdString> tmp;
tmp.insert(cola);
tmp.insert(colb);
if (this->Requests.insert(tmp).second)
{
return 1;
}
}
return 0;
}
// --------------------------------------------------------------------
///@}
/**
* Return the number of currently-defined requests
*/
vtkIdType GetNumberOfRequests() { return static_cast<vtkIdType>(this->Requests.size()); }
// --------------------------------------------------------------------
///@{
/**
* Return the number of columns associated with request \a r.
*/
vtkIdType GetNumberOfColumnsForRequest(vtkIdType r)
{
if (r < 0 || r > static_cast<vtkIdType>(this->Requests.size()))
{
return 0;
}
std::set<std::set<vtkStdString>>::iterator it = this->Requests.begin();
for (vtkIdType i = 0; i < r; ++i)
{
++it;
}
return static_cast<vtkIdType>(it->size());
}
// --------------------------------------------------------------------
///@}
///@{
/**
* Provide the name of the \a c-th column of the \a r-th request in \a columnName.
* Returns false if the request or column does not exist and true otherwise.
*/
bool GetColumnForRequest(vtkIdType r, vtkIdType c, vtkStdString& columnName)
{
if (r < 0 || r > static_cast<vtkIdType>(this->Requests.size()) || c < 0)
{
return false;
}
std::set<std::set<vtkStdString>>::const_iterator it = this->Requests.begin();
for (vtkIdType i = 0; i < r; ++i)
{
++it;
}
if (c > static_cast<vtkIdType>(it->size()))
{
return false;
}
std::set<vtkStdString>::const_iterator cit = it->begin();
for (vtkIdType j = 0; j < c; ++j)
{
++cit;
}
columnName = *cit;
return true;
}
///@}
std::set<std::set<vtkStdString>> Requests;
std::set<vtkStdString> Buffer;
};
VTK_ABI_NAMESPACE_END
#endif // vtkStatisticsAlgorithmPrivate_h
// VTK-HeaderTest-Exclude: vtkStatisticsAlgorithmPrivate.h
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