//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TAcDbObjectPtr.h
// = Version	:   ver2.0
// = Author		:   xlc
// = CreateDate	:   2002-09-09
// = Description:   ÀàµÄÉùÃ÷
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _TACDBOBJECTPTR_H_
#define _TACDBOBJECTPTR_H_

class GEOAPI TAcDbObjectPtr
{
public:
	
	TAcDbObjectPtr(const ads_name ent, AcDb::OpenMode mode, Adesk::Boolean bOpErased = Adesk::kFalse);
	
	TAcDbObjectPtr(AcDbObjectId nId, AcDb::OpenMode mode, Adesk::Boolean bOpErased = Adesk::kFalse);
	
	TAcDbObjectPtr(AcDbObject *pObj);
	
	~TAcDbObjectPtr();

	operator AcDbObject & ();
	
	operator AcDbEntity & ();
	
	bool operator !();
	
	void Close();

public:
	
	AcDbObject *m_pObject;
};


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

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

inline TAcDbObjectPtr::TAcDbObjectPtr(AcDbObject *pObj)
: m_pObject(pObj)
{
	
}

inline TAcDbObjectPtr::~TAcDbObjectPtr()
{
	if (m_pObject)
	{
		m_pObject->close(); 
	}
}

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

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

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

inline void TAcDbObjectPtr::Close() 
{
	if (m_pObject)
	{
		m_pObject->close();
	}
	
	m_pObject = NULL;
}
#endif