THierarchicalBase.h

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// SPDX-License-Identifier: LGPL-2.1-or-later OR GPL-2.0-or-later OR GPL-3.0-or-later OR LicenseRef-ACF-Commercial
#pragma once
 
 
#include <istd/TIHierarchical.h>
#include <istd/TChangeDelegator.h>
 
 
namespace istd
{
 
 
template <class Base, class Interface = typename Base::InterfaceType>
class THierarchicalBase: public istd::TChangeDelegator<Base>
{
public:
       typedef istd::TChangeDelegator<Base> BaseClass;
 
       THierarchicalBase();
 
       virtual void SetParentPtr(Interface* parentPtr);
 
       // pseudo-reimplemented (istd::TIHierarchical<Interface>)
       virtual int GetHierarchicalFlags() const override;
       virtual int GetChildsCount() const override;
       virtual Interface* GetChild(int index) const override;
       virtual Interface* GetParent() const override;
 
protected:
       Interface* m_parentPtr;
};
 
 
// public methods
 
template <class Base, class Interface>
THierarchicalBase<Base, Interface>::THierarchicalBase()
{
       m_parentPtr = NULL;
}
 
 
template <class Base, class Interface>
void THierarchicalBase<Base, Interface>::SetParentPtr(Interface* parentPtr)
{
       m_parentPtr = parentPtr;
 
       istd::IChangeable* changeablePtr = dynamic_cast<istd::IChangeable*>(parentPtr);
       if (changeablePtr){
              BaseClass::SetSlavePtr(changeablePtr);
       }
}
 
 
// pseudo-reimplemented (istd::TIHierarchical<Interface>)
 
template <class Base, class Interface>
int THierarchicalBase<Base, Interface>::GetHierarchicalFlags() const
{
       return BaseClass::HF_CHILDS_SUPPORTED | BaseClass::HF_PARENT_SUPPORTED;
}
 
 
template <class Base, class Interface>
int THierarchicalBase<Base, Interface>::GetChildsCount() const
{
       return 0;
}
 
 
template <class Base, class Interface>
Interface* THierarchicalBase<Base, Interface>::GetChild(int /*index*/) const
{
       return NULL;
}
 
 
template <class Base, class Interface>
Interface* THierarchicalBase<Base, Interface>::GetParent() const
{
       return m_parentPtr;
}
 
 
} // namespace istd