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/************************************************************************
*
* Copyright (C) 2009-2025 IRCAD France
* Copyright (C) 2012-2020 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight 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.
*
* Sight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "data/object.hpp"
#include "data/factory/new.hpp"
#include <core/com/signal.hxx>
#include <functional>
namespace sight::data
{
//------------------------------------------------------------------------------
object::object()
{
new_signal<modified_signal_t>(signals::MODIFIED);
new_signal<added_fields_signal_t>(signals::ADDED_FIELDS);
new_signal<changed_fields_signal_t>(signals::CHANGED_FIELDS);
new_signal<removed_fields_signal_t>(signals::REMOVED_FIELDS);
}
//------------------------------------------------------------------------------
data::object::sptr object::get_field(const field_name_t& _name, data::object::sptr _default_value) const
{
data::object::sptr object = _default_value;
auto iter = m_fields.find(_name);
if(iter != m_fields.end())
{
object = iter->second;
}
return object;
}
//------------------------------------------------------------------------------
const object::field_map_t& object::get_fields() const
{
return m_fields;
}
//------------------------------------------------------------------------------
object::field_name_vector_t object::get_field_names() const
{
field_name_vector_t names;
std::transform(
m_fields.begin(),
m_fields.end(),
std::back_inserter(names),
[](const auto& _e){return _e.first;});
return names;
}
//------------------------------------------------------------------------------
void object::set_field(const field_name_t& _name, data::object::sptr _obj)
{
std::pair<field_map_t::iterator, bool> res = m_fields.insert(field_map_t::value_type(_name, _obj));
if(!res.second)
{
res.first->second = _obj;
}
}
//------------------------------------------------------------------------------
void object::set_fields(const field_map_t& _field_map)
{
m_fields = _field_map;
}
//------------------------------------------------------------------------------
void object::remove_field(const field_name_t& _name)
{
auto iter = m_fields.find(_name);
SIGHT_ASSERT("field " << _name << " not found.", iter != m_fields.end());
if(iter != m_fields.end())
{
m_fields.erase(iter);
}
}
//------------------------------------------------------------------------------
void object::deep_copy(const object::csptr& _source, const std::unique_ptr<deep_copy_cache_t>& _cache)
{
SIGHT_ASSERT("Cache shall not be null !", _cache);
// Copy members
m_description = _source->m_description;
// Deep copy fields
m_fields.clear();
for(const auto& [key, value] : _source->m_fields)
{
m_fields.insert_or_assign(key, object::copy(value, _cache));
}
}
//-----------------------------------------------------------------------------
void object::shallow_copy(const object::csptr& _source)
{
// Copy members
m_description = _source->m_description;
// Shallow copy fields
m_fields = _source->m_fields;
}
//-----------------------------------------------------------------------------
data::object::sptr object::copy(const data::object::csptr& _source, const std::unique_ptr<deep_copy_cache_t>& _cache)
{
SIGHT_ASSERT("Cache shall not be null !", _cache);
if(!_source)
{
return nullptr;
}
// Check if the object is already in the cache
if(const auto& it = _cache->find(_source); it != _cache->cend())
{
return it->second;
}
// Not found in cache, we crete a new copy
auto object_copy = data::factory::make(_source->get_classname());
SIGHT_ASSERT("Could not create object of type : " + _source->get_classname(), object_copy);
// Add the object to the cache
_cache->insert_or_assign(_source, object_copy);
// Copy the object
object_copy->deep_copy(_source, _cache);
return object_copy;
}
//-----------------------------------------------------------------------------
bool object::operator==(const object& _other) const noexcept
{
if(m_description != _other.m_description)
{
return false;
}
return core::is_equal(m_fields, _other.m_fields);
}
//------------------------------------------------------------------------------
bool object::operator!=(const object& _other) const noexcept
{
return !(*this == _other);
}
} // namespace sight::data
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