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/************************************************************************
*
* Copyright (C) 2017-2025 IRCAD France
* Copyright (C) 2017-2019 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/>.
*
***********************************************************************/
#pragma once
#include <sight/service/config.hpp>
#include "service/base.hpp"
#include <core/com/signals.hpp>
namespace sight::service
{
/**
* @brief This interface defines operator service API.
* @section Signals Signals
* - \b computed() : Emitted when something was computed.
*/
class SIGHT_SERVICE_CLASS_API filter : public service::base
{
public:
SIGHT_DECLARE_SERVICE(filter, service::base);
struct signals
{
using computed_t = core::com::signal<void ()>;
static inline const core::com::signals::key_t COMPUTED = "computed";
};
protected:
/// filter constructor.
SIGHT_SERVICE_API filter(core::com::signals& _signals);
/// filter destructor.
SIGHT_SERVICE_API ~filter() override = default;
};
} // namespace sight::service
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