www.pudn.com > IPServer.rar > Clock.cpp

#include "StdAfx.h" 
#include "Clock.h" 
#include  
 
const double PI = 3.1415926535897931f; 
 
CClock::CClock(void) 
: m_penHour(PS_SOLID, 2, RGB(128,128,128)) 
, m_pen(PS_SOLID, 3, RGB(19,157,255)) 
{ 
	memset(&m_point, 0, 4*sizeof(POINT)); 
} 
 
CClock::~CClock(void) 
{ 
 
} 
 
void CClock::ClockStart(HWND hWnd, UINT nIDTimer, const CRect &rc) 
{ 
	CalculateHandAngle(); 
 
	SetTimer(hWnd, nIDTimer, 500, NULL); 
	m_hWnd = hWnd; 
	m_nIDTimer = nIDTimer; 
 
	m_fRadius = rc.Width()/2.0f-4.0f; 
	m_fxCenter = rc.right/2.0f; 
	m_fyCenter = rc.right/2.0f+5.0f; 
} 
 
void CClock::ClockStop() 
{ 
	KillTimer(m_hWnd, m_nIDTimer); 
} 
 
void CClock::CalculateHandAngle() 
{ 
 	time_t tval = time(NULL); 
	tm *time; 
	time=localtime(&tval/*, &tval*/); 
	 
	m_fAngleSecond  = PI*(time->tm_sec)/30.0f; 
	m_fAngleMinute  = PI*(time->tm_min + time->tm_sec/60.0f)/30.0f; 
	m_fAngleHour = PI*(time->tm_hour + time->tm_min/60.0f)/6.0f; 
} 
 
void CClock::ClockDraw(CDC *pDC) 
{ 
	CPen * oldPen = pDC->SelectObject(&m_penHour); 
	 
	for (int i=0; i<60; ++i) 
	{ 
		pDC->MoveTo((int)(m_fxCenter + (m_fRadius-6.0f)*sin(PI*i/30.0)), (int)(m_fyCenter- (m_fRadius-6.0f)*cos(PI*i/30.0))); 
		pDC->LineTo((int)(m_fxCenter + ((m_fRadius-4.0f)*sin(PI*i/30.0))), (int)(m_fyCenter- (m_fRadius-4)*cos(PI*i/30.0))); 
	} 
 
	pDC->SelectObject(&m_pen); 
 
	for (int j=0; j<12; ++j) 
	{ 
		pDC->MoveTo((int)(m_fxCenter + (m_fRadius-7)*sin(PI*j/6.0)), (int)(m_fyCenter- (m_fRadius-7)*cos(PI*j/6.0))); 
		pDC->LineTo((int)(m_fxCenter + (m_fRadius-4)*sin(PI*j/6.0)), (int)(m_fyCenter- (m_fRadius-4)*cos(PI*j/6.0))); 
	} 
 
	pDC->SelectObject(&m_penHour); 
 
	DrawClockHand(pDC, 30, 10, 10, m_fAngleHour); 
	DrawClockHand(pDC, 15, 8, 10, m_fAngleMinute); 
	DrawClockHand(pDC, 9, 2, 15, m_fAngleSecond); 
 
	pDC->SelectObject(&m_pen); 
	pDC->Ellipse((int)(m_fxCenter-1.0f), (int)(m_fyCenter-1.0f), (int)(m_fxCenter+1.0f), (int)(m_fyCenter+1.0f)); 
 
	pDC->SelectObject(oldPen); 
} 
 
void CClock::DrawClockHand(CDC *pDC, double f1, double f2, double f3, double fAngle) 
{ 
	m_point[0].x = long(m_fxCenter + ((m_fRadius-f1)*sin(fAngle))); 
	m_point[0].y = long(m_fyCenter - ((m_fRadius-f1)*cos(fAngle))); 
 
	m_point[1].x = long(m_fxCenter - (f2*cos(fAngle))); 
	m_point[1].y = long(m_fyCenter - (f2*sin(fAngle))); 
 
	m_point[2].x = long(m_fxCenter - (f3*sin(fAngle))); 
	m_point[2].y = long(m_fyCenter + (f3*cos(fAngle))); 
 
	m_point[3].x = long(m_fxCenter + (f2*cos(fAngle))); 
	m_point[3].y = long(m_fyCenter + (f2*sin(fAngle))); 
 
	pDC->Polygon(m_point, 4); 
}