www.pudn.com > roll.rar > GEOMWND.CPP

// GeomWnd.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "roll.h" 
#include "GeomWnd.h" 
#include "bbroll.h" 
#include "comnfun.h" 
#include  
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CGeomWnd 
 
CGeomWnd::CGeomWnd() 
{ 
} 
 
CGeomWnd::~CGeomWnd() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CGeomWnd, CWnd) 
	//{{AFX_MSG_MAP(CGeomWnd) 
	ON_WM_PAINT() 
	ON_WM_SIZE() 
	ON_WM_DESTROY() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
 
///////////////////////////////////////////////////////////////////////////// 
// CGeomWnd message handlers 
 
BOOL CGeomWnd::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)  
{ 
	return CWnd::Create(lpszClassName, lpszWindowName, dwStyle, rect, pParentWnd, nID, pContext); 
} 
 
void CGeomWnd::DrawRoller(CDC* dc,CFPoint point[7]) 
{ 
	Line_f(dc,point[0].x,point[0].y,point[1].x,point[1].y); 
	Arc_f(dc,point[3].x,point[3].y,theRoll.m_r1,theRoll.m_r1,point[2].x,point[2].y,point[1].x,point[1].y); 
	Line_f(dc,point[2].x,point[2].y,point[4].x,point[4].y); 
	Arc_f(dc,point[6].x,point[6].y,theRoll.m_r2,theRoll.m_r2,point[4].x,point[4].y,point[5].x,point[5].y); 
} 
 
void CGeomWnd::OnPaint()  
{ 
	CPaintDC dc(this); // device context for painting 
	 
	CRect rect; 
	int ratio; 
	double alfa,sita; 
	GetClientRect(&rect); 
	dc.SetMapMode(MM_ISOTROPIC); 
	ratio=(rect.right>rect.bottom)?rect.bottom:rect.right; 
	sita=2.0*(theRoll.RCENOUT+theRoll.m_r2+theRoll.m_r1); 
	alfa=double(ratio)/sita; 
	if( alfa < 1.0 ) { 
		alfa = 1.0/alfa; 
		ratio = int(alfa)+1; 
		dc.SetWindowExt(ratio,ratio); 
		dc.SetViewportExt(1,-1); 
	} 
	else { 
		ratio = int(alfa); 
		dc.SetWindowExt(1,-1); 
		dc.SetViewportExt(ratio,ratio); 
	} 
	dc.SetViewportOrg(rect.right/2,rect.bottom/2); 
	_Global_Ratio=1.0; 
	CFPoint point[NUMPOINT]; 
	DrawRoller(&dc,theRoll.roller); 
	double step=M_PI2/(double)theRoll.m_teethnum; 
	for(ratio=1;ratio