// Scn.h: interface for the CScn class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_SCN_H__27E078FB_7263_4923_9227_F05F4806CAB3__INCLUDED_)
#define AFX_SCN_H__27E078FB_7263_4923_9227_F05F4806CAB3__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "as_transf.hxx"
#include "dcl_graph.h"
class DECL_GRAPH CScn : public CObject  
{
public:
	CScn();
	virtual ~CScn();
private:
	transf m_transf;
	transf m_SCREEN_TO_DRAW_TRAN;
	transf m_DRAW_TO_SCREEN_TRAN;
public:
	void ComputeTransf(CWnd *pWnd);
	double GetScale(){return m_transf.scaling();};
//	void ScreenToLogic(CPoint pt,CPt &logPt);//將屏幕坐標轉化為邏輯坐標
//	void LogicToScreen(CPt pt,CPoint &scrPt);//將邏輯坐標轉化為屏幕坐標
friend transf GetTransf(CScn *pScn);
friend void   SetTransf(CScn *pScn,transf tran);
friend transf ScreenToDrawing(CScn *pScn);
friend void  ScreenToDrawing(CScn *pScn,transf tran);
friend transf DrawingToScreen(CScn *pScn);
friend void DrawingToScreen(CScn *pScn,transf tran);

};

#endif // !defined(AFX_SCN_H__27E078FB_7263_4923_9227_F05F4806CAB3__INCLUDED_)