#pragma once

class AcDbObjectPtr
{
public:
	AcDbObject *m_pObject;

public:

 AcDbObjectPtr(const ads_name ent
	, AcDb::OpenMode mode
	, Adesk::Boolean bOpErased = Adesk::kFalse)
	: m_pObject(NULL)
{
	AcDbObjectId nId;
	if (acdbGetObjectId(nId, (TLong_ptr *)ent) == Acad::eOk) 
	{
		bool bVal = bOpErased ? true : false;
		acdbOpenObject(m_pObject, nId, mode, bVal);
	}
}

 AcDbObjectPtr(AcDbObjectId nId
	, AcDb::OpenMode mode
	, Adesk::Boolean bOpErased = Adesk::kFalse)
	: m_pObject(NULL)
{
	bool bVal = bOpErased ? true : false;
	acdbOpenObject(m_pObject, nId, mode, bVal);
}

 AcDbObjectPtr(AcDbObject *pObj) : m_pObject(pObj) { }

 ~AcDbObjectPtr()
{
	if (m_pObject)
	{
		m_pObject->close(); 
	}
}

 operator AcDbObject &()
{
	assert(m_pObject);
	
	return *m_pObject;
}

 operator AcDbEntity & ()
{
	assert(m_pObject && m_pObject->isKindOf(AcDbEntity::desc()));
	
	return *(AcDbEntity *)m_pObject;
}

 bool operator !()
{
	return (m_pObject == NULL) ? true : false;
}

 void Close() 
{
	if (m_pObject)
	{
		m_pObject->close();
	}
	
	m_pObject = NULL;
}

};