//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TShowExtend.cpp
// = Version	:   ver2.0
// = Author		:   xlc
// = CreateDate	:   2002-09-09
// = Description:   ÀàµÄ¶¨Òå
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#include "StdAfx.h"
#include "TShowExtend.h"
#include "TPushAcadVar.h"
#include "TchGlobalFunc.h"

TShowExtend::TShowExtend(TPickEntSet &ss)
	: restoreScr(0)
{
	TADSGePoint3d ptLow, ptUp;
	ss.GetExtend(ptLow, ptUp);
	
	GetScreenCorner(lowCorner, upCorner);
	ptLow.z = ptUp.z = lowCorner.z;
	if (Max(upCorner, ptUp) != upCorner || Min(lowCorner, ptLow) != lowCorner)
	{
		ptUp.x += 10;
		ptUp.y += 10;
		ptLow.x -= 10;
		ptLow.y -= 10;
		
		TPushAcadVar<int> osmode(_T("OSMODE"), 0);
		ArxZoom(ptLow, ptUp);
		
		restoreScr = 1;
	}
}

TShowExtend::~TShowExtend() 
{
	if (restoreScr) 
	{
		TPushAcadVar<int> osmode(_T("OSMODE"), 0);
		ArxZoom(lowCorner, upCorner);
	}
}