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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Base/Type/VectorWC.h
//! @brief Defines and implements templated class VectorWC.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifdef SWIG
#error no need to expose this header to Swig
#endif // SWIG
#ifndef BORNAGAIN_BASE_TYPE_VECTORWC_H
#define BORNAGAIN_BASE_TYPE_VECTORWC_H
#include "Base/Type/OwningVector.h"
#include "Base/Util/Assert.h"
//! An OwningVector with a current index.
template <typename T> class VectorWC : public OwningVector<T> {
using super = OwningVector<T>;
public:
void push_back(T* e)
{
super::push_back(e);
m_current_index = super::size() - 1;
}
void insert_at(size_t i, T* e)
{
super::insert_at(i, e);
m_current_index = i;
}
void replace_at(size_t i, T* e)
{
super::replace_at(i, e);
m_current_index = i;
}
void delete_element(const T* e)
{
super::delete_element(e);
update_current();
}
void delete_at(size_t i)
{
super::delete_at(i);
update_current();
}
void delete_current()
{
ASSERT(m_current_index != size_t(-1));
super::delete_at(m_current_index);
update_current();
}
void swap(size_t from, size_t to)
{
super::swap(from, to);
// TODO update m_current_index ?
}
void clear()
{
super::clear();
m_current_index = -1;
}
void setCurrentIndex(size_t i)
{
ASSERT(i < super::size() || i == size_t(-1));
if (i != m_current_index)
m_current_index = i;
}
size_t currentIndex() const { return m_current_index; }
const T* currentItem() const
{
return m_current_index < super::size() ? super::at(m_current_index) : (T*)nullptr;
}
T* currentItem()
{
return m_current_index < super::size() ? super::at(m_current_index) : (T*)nullptr;
}
private:
void update_current()
{
if (m_current_index == super::size())
m_current_index = super::size() - 1;
}
size_t m_current_index = -1;
};
#endif // BORNAGAIN_BASE_TYPE_VECTORWC_H
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