//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, SH Software Co. Ltd.
// = FileName	:   XBlockTable 类
// = Version	:   ver2.0
// = Author		:   zjq
// = CreateDate	:   2002-09-09
// = Description:   XBlockTable 声明
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _XBlockTable_H_
#define _XBlockTable_H_

#ifndef _SYMBOLTABLE_H_
#include "SymbolTable.h"
#endif

#ifndef _ENTITY_H_
#include "Entity.h" 
#endif

#ifndef _XPOINT_H_
#include "XPoint.h"
#endif

class GEOAPI XBlockTable : public XSymbolTable 
{
public:
	
	XBlockTable(const TCHAR *blkName);

	~XBlockTable();
	
	int GetExtend(ads_point lowPt, ads_point upPt, ads_matrix tranMat = NULL);
	
	int operator !();
	
	int EntNext();
	
public:
	
	Entity ent;
	
	XPoint base;
};


inline int XBlockTable::operator !() 
{
	return (XSymbolTable::operator !() || !ent);
}

#endif