coolclockdlg.cpp

一个vc6下做的闹钟小程序,适合初学者学习.

// CoolClockDlg.cpp : implementation file
//

#include "stdafx.h"
#include "CoolClock.h"
#include "CoolClockDlg.h"
#include <math.h>

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

//////////////////////////////////////////////////////////////////////////
// CCoolClockDlg dialog

CCoolClockDlg::CCoolClockDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCoolClockDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCoolClockDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDI_CLOCK);

	m_brMinutePoint.CreateSolidBrush(RgbRed);
	m_brMinuteBody.CreateSolidBrush(RgbRed);
	m_brHourPoint.CreateSolidBrush(RgbBlue);
	m_brHourBody.CreateSolidBrush(RgbRed);
	m_brSecondBody.CreateSolidBrush(RgbGreen);
}

void CCoolClockDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCoolClockDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCoolClockDlg, CDialog)
	//{{AFX_MSG_MAP(CCoolClockDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_DESTROY()
	ON_WM_CREATE()
	ON_WM_CTLCOLOR()
	ON_WM_LBUTTONDOWN()
	ON_WM_TIMER()
	ON_WM_ERASEBKGND()
	ON_WM_LBUTTONDBLCLK()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCoolClockDlg message handlers

BOOL CCoolClockDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	int cx = GetSystemMetrics(SM_CXFULLSCREEN);
	int cy = GetSystemMetrics(SM_CYFULLSCREEN);
	CRect rcTo,rcSrc;
	GetWindowRect(rcSrc);
	rcTo.left = cx-(MAIN_RAD*3+HOUR_CIRCLEWIDTH);
	rcTo.top = cy-(MAIN_RAD*3+HOUR_CIRCLEWIDTH);
	rcTo.right = cx-MAIN_RAD+HOUR_CIRCLEWIDTH;
	rcTo.bottom = cy-MAIN_RAD+HOUR_CIRCLEWIDTH;
	MoveWindow(&rcTo);

	CRegKey hKey;
	if(hKey.Create(HKEY_LOCAL_MACHINE,"SOFTWARE\\MICROSOFT\\WINDOWS\\CURRENTVERSION\\RUN") == ERROR_SUCCESS)
	{
		BOOL bWrite = TRUE;
		TCHAR lpBuf[_MAX_PATH];
		GetModuleFileName(GetModuleHandle(NULL),lpBuf,sizeof(lpBuf));
		TCHAR scTemp[_MAX_PATH];
		DWORD dwCount = sizeof(scTemp);
		if(hKey.QueryValue(scTemp,"isdong-CoolClock-Run",&dwCount) == ERROR_SUCCESS)
		{
			if(_tcscmp(scTemp,lpBuf) ==0)
			{
				bWrite = !bWrite;
			}
		}
		if(bWrite)
			hKey.SetValue(lpBuf,"isdong-CoolClock-Run");
		hKey.Close();
	}

	InitRgn();
	SetTimer(1,500,NULL);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CCoolClockDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	CDialog::OnSysCommand(nID, lParam);
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CCoolClockDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting
		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CPaintDC dc(this); // device context for painting
		dc.FillRgn(&m_HourPt,&m_brHourPoint);
		dc.FillRgn(&m_HourRgn,&m_brHourBody);
		dc.FillRgn(&m_MinutePt,&m_brMinutePoint);
		dc.FillRgn(&m_MinuteRgn,&m_brMinuteBody);
		dc.FillRgn(&m_SecondRgn,&m_brSecondBody);
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CCoolClockDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CCoolClockDlg::InitRgn()
{
	SetWindowPos(&wndTopMost,0,0,0,0,SWP_NOMOVE |SWP_NOSIZE );
	CRgn rgn;
	CRect rc;
	GetWindowRect(&rc);
	rc -= rc.TopLeft();
	if(rc.Width() < ( MAIN_RAD*2+HOUR_CIRCLEWIDTH ) || rc.Height() < ( MAIN_RAD*2+HOUR_CIRCLEWIDTH ))
	{
		rc.right = rc.left + (MAIN_RAD+HOUR_CIRCLEWIDTH)*2;
		rc.bottom = rc.top + (MAIN_RAD+HOUR_CIRCLEWIDTH)*2;
		MoveWindow(&rc);
	}
	m_MainRgn.CreateEllipticRgn(0,0,0,0);
	m_MinutePt.CreateEllipticRgn(0,0,0,0);
	m_HourPt.CreateEllipticRgn(0,0,0,0);

	CPoint centerPt((rc.left+rc.right)/2,(rc.top+rc.bottom)/2);
	rc.left = centerPt.x-HOUR_CIRCLEWIDTH/2;
	rc.right = rc.left+HOUR_CIRCLEWIDTH;
	rc.top = centerPt.y-HOUR_CIRCLEWIDTH/2;
	rc.bottom = centerPt.y+HOUR_CIRCLEWIDTH/2;
	rgn.CreateEllipticRgnIndirect (&rc);
	m_MainRgn.CombineRgn(&m_MainRgn,&rgn,RGN_OR);
	rgn.DeleteObject();
	rc.OffsetRect(-OFFSET, -OFFSET);
	rgn.CreateEllipticRgnIndirect (&rc);
	m_HourPt.CombineRgn(&m_HourPt,&rgn,RGN_OR);
	rgn.DeleteObject();
	for(int i=0;i<360;i+=6)
	{
		rc.left = centerPt.x+cos(i*PI/180.0)*MAIN_RAD;
		if(i%30 == 0)
		{
			rc.left -= HOUR_CIRCLEWIDTH/2;
			rc.right = rc.left+HOUR_CIRCLEWIDTH;
			rc.top = centerPt.y+sin(i*PI/180.0)*MAIN_RAD-HOUR_CIRCLEWIDTH/2;
			rc.bottom = centerPt.y+sin(i*PI/180.0)*MAIN_RAD+HOUR_CIRCLEWIDTH/2;
		}
		else
		{
			rc.left -= MINUTE_CIRCLEWIDTH/2;
			rc.right = rc.left+MINUTE_CIRCLEWIDTH;
			rc.top = centerPt.y+sin(i*PI/180.0)*MAIN_RAD-MINUTE_CIRCLEWIDTH/2;
			rc.bottom = centerPt.y+sin(i*PI/180.0)*MAIN_RAD+MINUTE_CIRCLEWIDTH/2;
		}
		rgn.CreateEllipticRgnIndirect (&rc);
		m_MainRgn.CombineRgn(&m_MainRgn,&rgn,RGN_OR);
		rgn.DeleteObject();
		rc.OffsetRect(-OFFSET, -OFFSET);
		rgn.CreateEllipticRgnIndirect (&rc);
		if(i%30 == 0)
			m_HourPt.CombineRgn(&m_HourPt,&rgn,RGN_OR);
		else
			m_MinutePt.CombineRgn(&m_MinutePt,&rgn,RGN_OR);
		rgn.DeleteObject();
	}
	MoveHand();
}

void CCoolClockDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	KillTimer(1);
	m_MainRgn.DeleteObject();
	m_MinuteRgn.DeleteObject();
	m_HourRgn.DeleteObject();
	m_SecondRgn.DeleteObject();
	m_HourPt.DeleteObject();
	m_MinutePt.DeleteObject();

	m_brMinutePoint.DeleteObject();
	m_brMinuteBody.DeleteObject();
	m_brHourPoint.DeleteObject();
	m_brHourBody.DeleteObject();
	m_brSecondBody.DeleteObject();
}

int CCoolClockDlg::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CDialog::OnCreate(lpCreateStruct) == -1)
		return -1;
//	ModifyStyleEx(0,WS_EX_TOOLWINDOW);	
	return 0;
}

HBRUSH CCoolClockDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

	static CBrush m_red(RgbBlue);
	return m_red;
}

void CCoolClockDlg::OnLButtonDown(UINT nFlags, CPoint point) 
{
//	CDialog::OnLButtonDown(nFlags, point);
	PostMessage(WM_NCLBUTTONDOWN,HTCAPTION,0);
}

void CCoolClockDlg::OnTimer(UINT nIDEvent) 
{
	switch(nIDEvent)
	{
	case 1:
		KillTimer(1);
		MoveHand();
		SetTimer(1,1000,NULL);
		break;
	}

	CDialog::OnTimer(nIDEvent);
}

void CCoolClockDlg::MoveHand()
{
	CDC * pDC = GetDC();
	CTime CurTime = CTime::GetCurrentTime();

	double angle= (CurTime.GetHour()*3600+CurTime.GetMinute()*60+CurTime.GetSecond())*2*PI/SECONDHOUR;
	CRect rc;
	GetClientRect(&rc);
	CPoint cPt((rc.left+rc.right)/2+OFFSET,(rc.top+rc.bottom)/2+OFFSET);
	CRgn rgn,rgnLast;

	rgnLast.CreateRectRgn(0, 0, 0, 0);
	rgnLast.CombineRgn(&rgnLast,&m_MainRgn,RGN_OR);
	m_HourRgn.DeleteObject();
	m_MinuteRgn.DeleteObject();
	m_SecondRgn.DeleteObject();
	m_HourRgn.CreateEllipticRgn(0,0,0,0);
	m_MinuteRgn.CreateEllipticRgn(0,0,0,0);
	m_SecondRgn.CreateEllipticRgn(0,0,0,0);
	for(int i=10;i<=HOUR_RAD;i+=10)
	{
		rc.left = cPt.x+sin(angle)*i;
		rc.top = cPt.y-cos(angle)*i;

		rc.left -= HAND_CIRCLEWIDTH/2;
		rc.top -= HAND_CIRCLEWIDTH/2;
		rc.right = rc.left+HAND_CIRCLEWIDTH;
		rc.bottom = rc.top+HAND_CIRCLEWIDTH;

		rgn.CreateEllipticRgnIndirect (&rc);
		rgnLast.CombineRgn(&rgnLast,&rgn,RGN_OR);
		rgn.DeleteObject();
		rc.OffsetRect(-OFFSET, -OFFSET);
		rgn.CreateEllipticRgnIndirect (&rc);
		m_HourRgn.CombineRgn(&m_HourRgn,&rgn,RGN_OR);
		rgn.DeleteObject();

		if(i<TAIL_RAD)
		{
			rc.left = cPt.x-sin(angle)*i;
			rc.top = cPt.y+cos(angle)*i;

			rc.left -= HAND_CIRCLEWIDTH/2;
			rc.top -= HAND_CIRCLEWIDTH/2;
			rc.right = rc.left+HAND_CIRCLEWIDTH;
			rc.bottom = rc.top+HAND_CIRCLEWIDTH;

			rgn.CreateEllipticRgnIndirect (&rc);
			rgnLast.CombineRgn(&rgnLast,&rgn,RGN_OR);
			rgn.DeleteObject();
			rc.OffsetRect(-OFFSET, -OFFSET);
			rgn.CreateEllipticRgnIndirect (&rc);
			m_HourRgn.CombineRgn(&m_HourRgn,&rgn,RGN_OR);
			rgn.DeleteObject();
		}
	}

	angle= (CurTime.GetMinute()*60+CurTime.GetSecond())*2*PI/SECONDMINUTE;
	for(i=10;i<=MINUTE_RAD;i+=10)
	{
		rc.left = cPt.x+sin(angle)*i;
		rc.top = cPt.y-cos(angle)*i;

		rc.left -= HAND_CIRCLEWIDTH/2;
		rc.top -= HAND_CIRCLEWIDTH/2;
		rc.right = rc.left+HAND_CIRCLEWIDTH;
		rc.bottom = rc.top+HAND_CIRCLEWIDTH;

		rgn.CreateEllipticRgnIndirect (&rc);
		rgnLast.CombineRgn(&rgnLast,&rgn,RGN_OR);
		rgn.DeleteObject();
		rc.OffsetRect(-OFFSET, -OFFSET);
		rgn.CreateEllipticRgnIndirect (&rc);
		m_MinuteRgn.CombineRgn(&m_MinuteRgn,&rgn,RGN_OR);
		rgn.DeleteObject();
		if(i<TAIL_RAD)
		{
			rc.left = cPt.x-sin(angle)*i;
			rc.top = cPt.y+cos(angle)*i;

			rc.left -= HAND_CIRCLEWIDTH/2;
			rc.top -= HAND_CIRCLEWIDTH/2;
			rc.right = rc.left+HAND_CIRCLEWIDTH;
			rc.bottom = rc.top+HAND_CIRCLEWIDTH;

			rgn.CreateEllipticRgnIndirect (&rc);
			rgnLast.CombineRgn(&rgnLast,&rgn,RGN_OR);
			rgn.DeleteObject();
			rc.OffsetRect(-OFFSET, -OFFSET);
			rgn.CreateEllipticRgnIndirect (&rc);
			m_MinuteRgn.CombineRgn(&m_MinuteRgn,&rgn,RGN_OR);
			rgn.DeleteObject();
		}
	}

	angle= CurTime.GetSecond()*2*PI/SECONDSECOND;
	for(i=10;i<=SECOND_RAD;i+=10)
	{
		rc.left = cPt.x+sin(angle)*i;
		rc.top = cPt.y-cos(angle)*i;

		rc.left -= HAND_CIRCLEWIDTH/2;
		rc.top -= HAND_CIRCLEWIDTH/2;
		rc.right = rc.left+HAND_CIRCLEWIDTH;
		rc.bottom = rc.top+HAND_CIRCLEWIDTH;

		rgn.CreateEllipticRgnIndirect (&rc);
		rgnLast.CombineRgn(&rgnLast,&rgn,RGN_OR);
		rgn.DeleteObject();
		rc.OffsetRect(-OFFSET, -OFFSET);
		rgn.CreateEllipticRgnIndirect (&rc);
		m_SecondRgn.CombineRgn(&m_SecondRgn,&rgn,RGN_OR);
		rgn.DeleteObject();
		if(i<TAIL_RAD)
		{
			rc.left = cPt.x-sin(angle)*i;
			rc.top = cPt.y+cos(angle)*i;

			rc.left -= HAND_CIRCLEWIDTH/2;
			rc.top -= HAND_CIRCLEWIDTH/2;
			rc.right = rc.left+HAND_CIRCLEWIDTH;
			rc.bottom = rc.top+HAND_CIRCLEWIDTH;

			rgn.CreateEllipticRgnIndirect (&rc);
			rgnLast.CombineRgn(&rgnLast,&rgn,RGN_OR);
			rgn.DeleteObject();
			rc.OffsetRect(-OFFSET, -OFFSET);
			rgn.CreateEllipticRgnIndirect (&rc);
			m_SecondRgn.CombineRgn(&m_SecondRgn,&rgn,RGN_OR);
			rgn.DeleteObject();
		}
	}
	SetWindowRgn(rgnLast,TRUE);
}

BOOL CCoolClockDlg::OnEraseBkgnd(CDC* pDC) 
{
	return CDialog::OnEraseBkgnd(pDC);
}

void CCoolClockDlg::OnLButtonDblClk(UINT nFlags, CPoint point) 
{
	if(MessageBox(_T("要关闭程序吗？"),_T("提示"),MB_YESNO) == IDYES)
		PostQuitMessage(0);
	
	CDialog::OnLButtonDblClk(nFlags, point);
}

BOOL CCoolClockDlg::PreTranslateMessage(MSG* pMsg) 
{
	if(pMsg->message == WM_KEYDOWN)
		return TRUE;
	return CDialog::PreTranslateMessage(pMsg);
}