Program Listing for File geometry_serializer_plugin.h

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/********************************************************************************
 *                                                                              *
 * This file is part of IfcOpenShell.                                           *
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 * IfcOpenShell is free software: you can redistribute it and/or modify         *
 * it under the terms of the Lesser GNU General Public License as published by  *
 * the Free Software Foundation, either version 3.0 of the License, or          *
 * (at your option) any later version.                                          *
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 * IfcOpenShell 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                 *
 * Lesser GNU General Public License for more details.                          *
 *                                                                              *
 * You should have received a copy of the Lesser GNU General Public License     *
 * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
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 ********************************************************************************/

#ifndef IFCOPENSHELL_GEOMETRY_SERIALIZER_PLUGIN_H
#define IFCOPENSHELL_GEOMETRY_SERIALIZER_PLUGIN_H

#include "../serializers/serializers_api.h"
#include "../ifcgeom/geometry_serializer.h"
#include "../plugin/plugin.h"

#include <functional>
#include <memory>

#include <filesystem>
#include <map>
#include <string>
#include <vector>

namespace ifcopenshell {
namespace serializers {

using ifcopenshell::geom::geometry_serializer;

struct SERIALIZERS_API geometry_serializer_info {
    std::string format;
    std::string name;
    std::string description;
    std::vector<std::string> extensions;
    std::vector<std::string> kernel_ids;
    bool supports_triangulation = false;
    bool supports_brep = false;
    bool supports_user_element_hierarchy = false;
    bool bypass_properties = true;
    bool requires_ascii_temp_file = false;
    bool writes_final_output = false;
};

struct SERIALIZERS_API geometry_serializer_context {
    std::string output_filename;
    std::string output_temp_filename;
    ifcopenshell::geom::settings& settings;
    const stream_or_filename* output_stream = nullptr;
    const stream_or_filename* output_temp_stream = nullptr;
};

class SERIALIZERS_API geometry_serializer_registry {
public:
    typedef std::function<std::shared_ptr<geometry_serializer>(const geometry_serializer_context&)> create_fn;
    typedef std::function<void(geometry_serializer_context&)> configure_fn;

    void bind(const geometry_serializer_info& info, create_fn create, configure_fn configure = configure_fn(), const ifcopenshell::plugin::module& module = ifcopenshell::plugin::module());
    bool has(const std::string& extension) const;
    const geometry_serializer_info* find(const std::string& extension) const;
    void configure(const std::string& extension, geometry_serializer_context& context) const;
    std::shared_ptr<geometry_serializer> create(const std::string& extension, const geometry_serializer_context& context) const;
    std::vector<geometry_serializer_info> serializers() const;

private:
    struct entry {
        ifcopenshell::plugin::module module_;
        geometry_serializer_info info_;
        create_fn create_;
        configure_fn configure_;
    };

    friend SERIALIZERS_API bool load_geometry_serializer_plugin(geometry_serializer_registry& registry, const std::string& extension);

    std::map<std::string, entry> entries_;
};

typedef void register_geometry_serializer_plugin_fn(geometry_serializer_registry&, const ifcopenshell::plugin::module&);

SERIALIZERS_API const char* geometry_serializer_plugin_registration_symbol();
SERIALIZERS_API ifcopenshell::plugin::metadata geometry_serializer_plugin_metadata(const std::string& format);
SERIALIZERS_API std::filesystem::path geometry_serializer_plugin_directory();
SERIALIZERS_API void load_geometry_serializer_plugins(geometry_serializer_registry& registry);
SERIALIZERS_API bool load_geometry_serializer_plugin(geometry_serializer_registry& registry, const std::string& extension);
SERIALIZERS_API geometry_serializer_registry& geometry_serializer_registry_instance();

}
}

#endif