cafChildFieldHandle.h

// ##################################################################################################
//
//    Caffa
//    Copyright (C) 2023- Kontur AS
//
//    GNU Lesser General Public License Usage
//    This library 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 2.1 of the License, or
//    (at your option) any later version.
//
//    This library 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 at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
//    for more details.
//
// ##################################################################################################
#pragma once

#include "cafFieldHandle.h"

#include <vector>

namespace caffa
{
class ChildFieldAccessor;
class Inspector;
class ObjectHandle;
class Visitor;

template <typename DataTypePtr>
concept is_pointer = std::is_pointer<DataTypePtr>::value;

class ChildFieldBaseHandle : public FieldHandle
{
public:
    virtual std::string childClassKeyword() const = 0;

    virtual std::vector<std::shared_ptr<ObjectHandle>>       childObjects()       = 0;
    virtual std::vector<std::shared_ptr<const ObjectHandle>> childObjects() const = 0;
    virtual bool                                             empty() const        = 0;

    void accept( Inspector* visitor ) const override;
    void accept( Editor* editor ) override;
};

class ChildFieldHandle : public ChildFieldBaseHandle
{
public:
    virtual void setChildObject( std::shared_ptr<ObjectHandle> object ) = 0;

    virtual void setAccessor( std::unique_ptr<ChildFieldAccessor> accessor ) = 0;
    virtual void clear()                                                     = 0;
};
} // namespace caffa