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/************************************************************************
*
* Copyright (C) 2009-2024 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 "copy.hpp"
#include <core/com/signal.hxx>
#include <core/com/signals.hpp>
namespace sight::module::data
{
//-----------------------------------------------------------------------------
void copy::configuring()
{
const auto& config = this->get_config();
SIGHT_ASSERT("One 'in' tag is required.", config.get_optional<std::string>("in").has_value());
[[maybe_unused]] const auto inout_cfg = config.get_optional<std::string>("inout");
[[maybe_unused]] const auto out_cfg = config.get_optional<std::string>("out");
SIGHT_ASSERT("One 'inout' or one 'out' tag is required.", inout_cfg.has_value() + out_cfg.has_value());
if(const auto mode_config = config.get_optional<std::string>("mode"); mode_config.has_value())
{
const auto& mode = mode_config.value();
if(mode == "copyOnStart")
{
m_mode = mode_t::start;
}
else if(mode == "copyOnUpdate")
{
m_mode = mode_t::update;
}
else
{
SIGHT_ERROR("Mode " + mode + " unknown. It should be either 'copyOnStart' or 'copyOnUpdate'");
}
}
}
//-----------------------------------------------------------------------------
void copy::starting()
{
if(m_mode == mode_t::start)
{
this->make_copy();
}
}
//-----------------------------------------------------------------------------
void copy::updating()
{
if(m_mode == mode_t::update)
{
this->make_copy();
}
else
{
SIGHT_WARN("Object copy was request but the mode is to 'copyOnStart'");
}
}
//-----------------------------------------------------------------------------
void copy::stopping()
{
// Unregister output
m_out_target = nullptr;
}
//-----------------------------------------------------------------------------
void copy::make_copy()
{
// Check if we use inout or output.
bool create = false;
{
const auto target_lock = m_target.lock();
if(!target_lock)
{
create = true;
}
}
// Extract the object.
const auto source_object = m_source.lock();
sight::data::object::csptr source = source_object.get_shared();
if(source)
{
const auto set_output_data =
[&]()
{
if(create)
{
// Set the data as output.
sight::data::object::sptr target = sight::data::object::copy(source);
m_out_target = target;
}
else
{
// Copy the object to the inout.
const auto target = m_target.lock();
target->deep_copy(source);
target->async_emit(this, sight::data::object::MODIFIED_SIG);
}
};
set_output_data();
}
}
//-----------------------------------------------------------------------------
} // namespace sight::module::data.
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