// Copyright (C), 1998-2007, Beijing Tangent Engineering Software Co. Ltd.
// = FileName:     TDbObjectPointer.h
// = Version:      8.5
// = Author:       lgh
// = Date:         2010-11-5 16:58:09
// = Description:  ARX自带smart指针平台之间有差异，在此左一层封装。
// = Maintainers:
#pragma once

#include "commonRoad.h"
#include <dbObjptr.h>

template <class TDbObject>
class TDbObjectPointer
{
public:
	TDbObjectPointer(void);
	~TDbObjectPointer(void);

	const TDbObject *object() const;
	TDbObject *object();
	const TDbObject *  operator->() const;
	TDbObject *        operator->();
	Acad::ErrorStatus open(AcDbObjectId   objId, AcDb::OpenMode mode, bool openErased = false);
	void close();
private:
	AcDbObjectPointer<TDbObject> *m_pointerImp;
};


template <class TDbObject>
TDbObjectPointer<TDbObject>::TDbObjectPointer(void)
: m_pointerImp(NULL)
{

}

template <class TDbObject>
TDbObjectPointer<TDbObject>::~TDbObjectPointer(void)
{
	delete m_pointerImp;
	m_pointerImp = NULL;
}



template<class TDbObject> inline const TDbObject *
TDbObjectPointer<TDbObject>::object() const
{
	ASSERT(m_pointerImp != NULL);
	ASSERT(m_pointerImp->openStatus() == Acad::eOk);

	return (*m_pointerImp).object();
}

template<class TDbObject> inline TDbObject *
TDbObjectPointer<TDbObject>::object()
{
	ASSERT(m_pointerImp != NULL);
	ASSERT(m_pointerImp->openStatus() == Acad::eOk);

	return (*m_pointerImp).object();
}

template<class TDbObject> inline const TDbObject *
TDbObjectPointer<TDbObject>::operator->() const
{
	return object();
}

template<class TDbObject> inline TDbObject *
TDbObjectPointer<TDbObject>::operator->()
{
	return object();	
}


template <class TDbObject>
Acad::ErrorStatus TDbObjectPointer<TDbObject>::open(AcDbObjectId objId, AcDb::OpenMode mode, bool openErased)
{
	ASSERT(m_pointerImp == NULL);

	m_pointerImp = new AcDbObjectPointer<TDbObject>(objId, mode, openErased);

	Acad::ErrorStatus eRet = m_pointerImp->openStatus();
	if (m_pointerImp->openStatus() != Acad::eOk)
	{
		delete m_pointerImp;
		m_pointerImp = NULL;
	}

	return eRet;
}

template <class TDbObject>
void TDbObjectPointer<TDbObject>::close()
{
	if (m_pointerImp != NULL)
	{
		delete m_pointerImp;
		m_pointerImp = NULL;
	}
}

#define AcDbObjectPointer TDbObjectPointer