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Visual C++

PicControl.h：源码内容

							// PicContro.h: interface for the CPicContro class.
//
//////////////////////////////////////////////////////////////////////
#if !defined(AFX_PICCONTRO_H__F487A937_55F8_4B1E_972D_E5305DFD7647__INCLUDED_)
#define AFX_PICCONTRO_H__F487A937_55F8_4B1E_972D_E5305DFD7647__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include "dibapi.h"
#ifndef __YUTAO_PICCONTROL_
#define __YUTAO_PICCONTROL_
typedef struct sPicControl
{
	long x;			//center point x
	long y;			//center point y
	double zoom;	//Zoom ratio
}PICCONTROL, *LPPICCONTROL;
#endif//__YUTAO_PICCONTROL_
class CPicControl
{
public:
	static double ViewFit(CPoint &ptDIBCent, const CRect &rcView, const HDIB hDIB);
	static double ViewActual(CPoint &ptDIBCent, const CRect &rcView, const HDIB hDIB);
	static double ZoomIn(double dZoom);
	static double ZoomOut(double dZoom);
	static double ZoomPan(CPoint &ptDIBCent,
		const CPoint& ptMouseD, const CPoint& ptMouseU, double dZoom);
	static double ZoomWindow(CPoint &ptDIBCent,
		const CRect &rcView, CRect &rcWindow, double dZoom);
	static void CalcuRect(CRect& rcView, CRect& rcDIB,
		const CPoint &ptDIBCent, const HDIB hDIB, double dZoom);
	
	static void ViewIdeal(CPoint &ptDIBCent, double &dZoom,
		const CView *pView, const HDIB hDIB);
};
#endif // !defined(AFX_PICCONTRO_H__F487A937_55F8_4B1E_972D_E5305DFD7647__INCLUDED_)

						