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/************************************************************************
*
* Copyright (C) 2024 IRCAD France
*
* 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 <core/com/signals.hpp>
#include <data/matrix4.hpp>
#include <service/controller.hpp>
#include <service/notifier.hpp>
#include <filesystem>
namespace sight::module::io::matrix
{
/**
* @brief This service checks if a matrix4 is valid as a transformation matrix.
*
* @section XML XML Configuration
*
* @code{.xml}
<service type="sight::module::io::matrix::validator">
<in key="matrix" uid="..." />
</service>
@endcode
*
* @subsection Input Input
* - \b matrix [sight::data::matrix4]: matrix to check.
*
* @subsection Signals Signals
* - \b valid : sent when matrix is valid.
* - \b invalid : sent when matrix is invalid.
*
* @subsection Slots Slots
* - \b update : Checks input matrix.
*/
class validator final : public sight::service::controller,
public sight::service::notifier
{
public:
struct signals
{
using key_t = sight::core::com::signals::key_t;
using void_signal_t = sight::core::com::signal<void ()>;
static inline const key_t VALID = "valid";
static inline const key_t INVALID = "invalid";
};
SIGHT_DECLARE_SERVICE(validator, sight::service::controller);
/// Constructor, does nothing.
validator();
/// Destructor, does nothing.
~validator() final = default;
/// Super class of reader services
using super_class = sight::service::controller;
protected:
void starting() final;
void stopping() final;
void configuring() final;
void updating() final;
private:
static constexpr std::string_view MATRIX_IN = "matrix";
sight::data::ptr<sight::data::matrix4, sight::data::access::in> m_matrix {this, MATRIX_IN};
};
} // namespace sight::module::io::matrix
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