meta_struct.h

/*
 *  GXML/Graphite: Geometry and Graphics Programming Library + Utilities
 *  Copyright (C) 2000 Bruno Levy
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *  If you modify this software, you should include a notice giving the
 *  name of the person performing the modification, the date of modification,
 *  and the reason for such modification.
 *
 *  Contact: Bruno Levy
 *
 *     levy@loria.fr
 *
 *     ISA Project
 *     LORIA, INRIA Lorraine,
 *     Campus Scientifique, BP 239
 *     54506 VANDOEUVRE LES NANCY CEDEX
 *     FRANCE
 *
 *  Note that the GNU General Public License does not permit incorporating
 *  the Software into proprietary programs.
 */
 
#ifndef H_OGF_META_TYPES_META_STRUCT_H
#define H_OGF_META_TYPES_META_STRUCT_H
 
#include <OGF/gom/common/common.h>
#include <OGF/gom/reflection/meta_class.h>
#include <OGF/gom/reflection/meta_builtin.h>
 
#include <typeinfo>
 
namespace OGF {
 
 
    gom_class GOM_API MetaStruct : public MetaClass {
    public:
        MetaStruct(const std::string& struct_name);
 
        ~MetaStruct() override;
 
        size_t offset(const MetaProperty* mprop) const;
 
        index_t field_index(const MetaProperty* mprop) const;
    };
 
    typedef SmartPointer<MetaStruct> MetaStruct_var;
 
    /********************************************************************/
 
    gom_class GOM_API MetaBuiltinStruct : public MetaBuiltinType {
    public:
        MetaBuiltinStruct(const std::string& struct_name);
 
        ~MetaBuiltinStruct() override;
 
 
    gom_properties:
 
        MetaStruct* get_meta_struct() const {
            return meta_struct_;
        }
 
 
    public:
        template <class T> MetaBuiltinStruct* add_field(
            const std::string& name, T* offset
        ) {
            MetaProperty* mprop =
                add_property_by_typeid_name(name, typeid(T).name());
            mprop->create_custom_attribute(
                "offset", String::to_string(size_t(offset))
            );
            return this;
        }
 
        MetaBuiltinStruct* add_field(
            const std::string& name, const std::string& type_name,
            size_t offset
        ) {
            MetaProperty* mprop = new MetaProperty(
                name, meta_struct_, type_name
            );
            mprop->create_custom_attribute(
                "offset", String::to_string(size_t(offset))
            );
            return this;
        }
 
    protected:
        MetaProperty* add_property_by_typeid_name(
            const std::string& property_name,
            const std::string& typeid_name
        );
 
 
    private:
        MetaStruct* meta_struct_;
    };
 
    /********************************************************************/
 
    gom_class GOM_API StructPropertyRef : public Object {
    public:
        StructPropertyRef(Object* object, const std::string& prop_name);
 
        Object* object() const {
            return object_;
        }
 
        const std::string& property_name() const {
            return property_name_;
        }
 
        bool set_property(
            const std::string& name, const std::string& value
        ) override;
 
        bool get_property(
            const std::string& name, std::string& value
        ) const override;
 
        bool set_property(const std::string& name, const Any& value) override;
 
        bool get_property(const std::string& name, Any& value) const override;
 
        std::string to_string() const;
 
    private:
        Object* object_;
        const std::string property_name_;
    };
 
    /********************************************************************/
}
 
#endif