ResourceManagerT_impl.hh

/*===========================================================================*\
 *                                                                           *
 *                            OpenVolumeMesh                                 *
 *        Copyright (C) 2011 by Computer Graphics Group, RWTH Aachen         *
 *                        www.openvolumemesh.org                             *
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 *---------------------------------------------------------------------------*
 *  This file is part of OpenVolumeMesh.                                     *
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 *  OpenVolumeMesh is free software: you can redistribute it and/or modify   *
 *  it under the terms of the GNU Lesser General Public License as           *
 *  published by the Free Software Foundation, either version 3 of           *
 *  the License, or (at your option) any later version with the              *
 *  following exceptions:                                                    *
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 *  If other files instantiate templates or use macros                       *
 *  or inline functions from this file, or you compile this file and         *
 *  link it with other files to produce an executable, this file does        *
 *  not by itself cause the resulting executable to be covered by the        *
 *  GNU Lesser General Public License. This exception does not however       *
 *  invalidate any other reasons why the executable file might be            *
 *  covered by the GNU Lesser General Public License.                        *
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 *  OpenVolumeMesh is distributed in the hope that it will be useful,        *
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
 *  GNU Lesser General Public License for more details.                      *
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 *  You should have received a copy of the GNU LesserGeneral Public          *
 *  License along with OpenVolumeMesh.  If not,                              *
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\*===========================================================================*/

#define RESOURCEMANAGERT_CC

#include "ResourceManager.hh"
#include "PropertyDefines.hh"
#include "TypeName.hh"

namespace OpenVolumeMesh {


template<class T>
VertexPropertyT<T> ResourceManager::request_vertex_property(const std::string& _name, const T _def) {

    return request_property<T, Entity::Vertex>(_name, _def);
}

template<class T>
EdgePropertyT<T> ResourceManager::request_edge_property(const std::string& _name, const T _def) {

    return request_property<T, Entity::Edge>(_name, _def);
}

template<class T>
HalfEdgePropertyT<T> ResourceManager::request_halfedge_property(const std::string& _name, const T _def) {

    return request_property<T, Entity::HalfEdge>(_name, _def);
}

template<class T>
FacePropertyT<T> ResourceManager::request_face_property(const std::string& _name, const T _def) {

    return request_property<T, Entity::Face>(_name, _def);
}

template<class T>
HalfFacePropertyT<T> ResourceManager::request_halfface_property(const std::string& _name, const T _def) {
    return request_property<T, Entity::HalfFace>(_name, _def);
}

template<class T>
CellPropertyT<T> ResourceManager::request_cell_property(const std::string& _name, const T _def) {

    return request_property<T, Entity::Cell>(_name, _def);
}

template<class T>
MeshPropertyT<T> ResourceManager::request_mesh_property(const std::string& _name, const T _def) {

    return request_property<T, Entity::Mesh>(_name, _def);
}

template<typename T, typename EntityTag>
PropertyTT<T, EntityTag>* ResourceManager::internal_find_property(const std::string& _name)
{
    using PropT = PropertyTT<T, EntityTag>;
    auto type_name = get_type_name<T>();
    auto &propVec = entity_props<EntityTag>();

    if(!_name.empty()) {
        for(auto &prop: propVec)
        {
            if(prop->name() == _name
                && prop->internal_type_name() == type_name)
            {
                return static_cast<PropT*>(prop);
            }
        }
    }
    return nullptr;
}

template<class T, class EntityTag>
PropertyTT<T, EntityTag> ResourceManager::internal_create_property(const std::string& _name, const T _def)
{
    auto type_name = get_type_name<T>();
    auto &propVec = entity_props<EntityTag>();
    auto handle = PropHandleT<EntityTag>::from_unsigned(propVec.size());
    auto prop = new PropertyTT<T, EntityTag>(_name, type_name, *this, handle, _def);
    prop->resize(n<EntityTag>());
    propVec.push_back(prop);
    return *prop;
}

template<typename T, typename EntityTag>
PropertyTT<T, EntityTag> ResourceManager::request_property(const std::string& _name, const T _def)
{
    auto *prop = internal_find_property<T, EntityTag>(_name);
    if (prop)
        return *prop;
    return internal_create_property<T, EntityTag>(_name, _def);
}

#if OVM_CXX_17

template<typename T, typename EntityTag>
std::optional<PropertyTT<T, EntityTag>>
ResourceManager::create_property(const std::string& _name, const T _def)
{
    auto *prop = internal_find_property<T, EntityTag>(_name);
    if (prop)
        return {};
    return {*internal_create_property<T, EntityTag>(_name, _def)};
}

template<typename T, typename EntityTag>
std::optional<PropertyTT<T, EntityTag>>
ResourceManager::get_property(const std::string& _name)
{
    auto *prop = internal_find_property<T, EntityTag>(_name);
    if (prop)
        return {*prop};
    return {};
}
#endif


template<typename T, class EntityTag>
void ResourceManager::set_persistent(PropertyTT<T, EntityTag>& _prop, bool _flag)
{
    if(_flag == _prop->persistent()) return;
    _prop->set_persistent(_flag);
}

template<class StdVecT>
void ResourceManager::remove_property(StdVecT& _vec, size_t _idx) {

    auto prop_ptr = _vec[_idx];
    prop_ptr->setResMan(nullptr);
    delete prop_ptr;
    _vec.erase(_vec.begin() + _idx);
    updatePropHandles(_vec);
}

template<class StdVecT>
void ResourceManager::resize_props(StdVecT& _vec, size_t _n) {

    for(typename StdVecT::iterator it = _vec.begin();
            it != _vec.end(); ++it) {
        (*it)->resize(_n);
    }
}

template<class StdVecT>
void ResourceManager::entity_deleted(StdVecT& _vec, const OpenVolumeMeshHandle& _h) {

    for(typename StdVecT::iterator it = _vec.begin();
            it != _vec.end(); ++it) {
        (*it)->delete_element(_h.uidx());
    }
}

template<class StdVecT>
void ResourceManager::clearVec(StdVecT& _vec) {

    for (auto prop: _vec) {
        prop->setResMan(nullptr);
        delete prop;
    }
    _vec.clear();
}

template<class StdVecT>
void ResourceManager::updatePropHandles(StdVecT &_vec)
{
    size_t n = _vec.size();
    for(size_t i = 0; i < n; ++i) {
        _vec[i]->set_handle(OpenVolumeMeshHandle(static_cast<int>(i)));
    }
}

} // Namespace OpenVolumeMesh