rm remaining uses of PolyVector (#914)

This resolves #914 (closed).

GUI/Model/Descriptor/PolyVector.h

-//  ************************************************************************************************
-//
-//  BornAgain: simulate and fit reflection and scattering
-//
-//! @file      GUI/Model/Descriptor/PolyVector.h
-//! @brief     Defines class PolyVector.
-//!
-//! @homepage  http://www.bornagainproject.org
-//! @license   GNU General Public License v3 or higher (see COPYING)
-//! @copyright Forschungszentrum Jülich GmbH 2021
-//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
-//
-//  ************************************************************************************************
-
-#ifndef BORNAGAIN_GUI_MODEL_DESCRIPTOR_POLYVECTOR_H
-#define BORNAGAIN_GUI_MODEL_DESCRIPTOR_POLYVECTOR_H
-
-#include "GUI/Model/Descriptor/PolyItem.h"
-
-//! An owning vector of PolyItem%s.
-
-template <typename Catalog> class PolyVector {
-public:
-    using BaseType = typename Catalog::BaseType;
-
-    void erase_item(const BaseType* t)
-    {
-        for (size_t i = 0; i < m_v.size(); i++)
-            if (m_v[i].certainItem() == t)
-                m_v.erase(m_v.begin() + i);
-    }
-
-    void delete_polyitem_at(size_t i) { m_v.erase(m_v.begin() + i); }
-
-    void insert_item_at(size_t i, BaseType* t)
-    {
-        PolyItem<Catalog> p;
-        p.setCertainItem(t);
-        m_v.insert(m_v.begin() + i, std::move(p));
-    }
-
-    int index_of(const BaseType* t) const
-    {
-        for (size_t i = 0; i < m_v.size(); i++)
-            if (m_v[i].certainItem() == t)
-                return int(i);
-        return -1;
-    }
-
-    void move_polyitem(size_t fromIndex, size_t toIndex)
-    {
-        if (fromIndex > toIndex)
-            std::rotate(m_v.rend() - fromIndex - 1, m_v.rend() - fromIndex, m_v.rend() - toIndex);
-        else
-            std::rotate(m_v.begin() + fromIndex, m_v.begin() + fromIndex + 1,
-                        m_v.begin() + toIndex + 1);
-    }
-
-    QVector<BaseType*> toQVector() const
-    {
-        QVector<BaseType*> result;
-        for (const auto& p : m_v)
-            result.append(p.certainItem());
-        return result;
-    }
-
-    void emplace_item_back(BaseType* item) { insert_item_at(m_v.size(), item); }
-    void clear() { m_v.clear(); }
-    size_t size() const { return m_v.size(); }
-    bool empty() const { return m_v.empty(); }
-    PolyItem<Catalog>& operator[](int i) { return m_v[i]; }
-    PolyItem<Catalog>& at(int i) { return m_v.at(i); }
-    PolyItem<Catalog>& front() { return m_v.front(); }
-    PolyItem<Catalog>& back() { return m_v.back(); }
-
-    using Iterator = typename std::vector<PolyItem<Catalog>>::iterator;
-    using ConstIterator = typename std::vector<PolyItem<Catalog>>::const_iterator;
-
-    ConstIterator begin() const { return m_v.cbegin(); }
-    ConstIterator end() const { return m_v.cend(); }
-    Iterator begin() { return m_v.begin(); }
-    Iterator end() { return m_v.end(); }
-
-private:
-    std::vector<PolyItem<Catalog>> m_v;
-};
-
-#endif // BORNAGAIN_GUI_MODEL_DESCRIPTOR_POLYVECTOR_H