timerdlg.cpp

this code is a timer

// timerDlg.cpp : implementation file
//

#include "stdafx.h"
#include "timer.h"
#include "timerDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	virtual void OnOK();
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTimerDlg dialog

CTimerDlg::CTimerDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTimerDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTimerDlg)
		// 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(IDR_MAINFRAME);
}

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

BEGIN_MESSAGE_MAP(CTimerDlg, CDialog)
	//{{AFX_MSG_MAP(CTimerDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(ID_START, OnStart)
	ON_WM_TIMER()
	ON_BN_CLICKED(ID_STOP, OnStop)
	ON_BN_CLICKED(ID_RESET, OnReset)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTimerDlg message handlers

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

	// Add "About..." menu item to system menu.
	
	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 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
	h=0;
	m=0;
	s=0;
	tenms=0;
	IsStop=false;
	IsBegin=false;
	IsReset=false;

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CTimerDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		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 CTimerDlg::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
	{
		CClientDC dc(this);
		CString time;

		time.Format("%d    %02d:%02d:%02d.%02d",1,h,m,s,tenms);
	    dc.TextOut(33,68,time);
		
		dc.MoveTo(30,45);
		dc.LineTo(135,45);
		dc.MoveTo(170,20);
		dc.LineTo(170,115);

		CDialog::OnPaint();
	}
}

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

void CTimerDlg::OnStart() 
{
	// TODO: Add your control notification handler code here
	SetTimer(110,10,NULL);
	if(IsStop)IsStop = !IsStop; //若Start键已按下，即已对定时器进行了设置，下次再按Stop键若满足设置定时器的条件就不用设置了
	h=0;
	m=0;
	s=0;
	tenms=0;

	IsBegin = true;
	if(IsReset)IsReset = false;
	CClientDC dc(this);
	//dc.GetBkColor();
}

void CTimerDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call defaul
	tenms++;
	tenms=tenms%100;
	if(tenms==0)
	{
		s++;
		s=s%60;
		if(s==0)
		{
			m++;
			m=m%60;
			if(m==0)
				h++;
		}
	}

	CClientDC dc(this);
	CString time;
	RECT Rect;
	GetClientRect(&Rect); //获得窗口客户区矩形的位置和大小，置于Rect中

	if(!IsStop)time.Format("%d    %02d:%02d:%02d.%02d",1,h,m,s,tenms);
	dc.TextOut(33,68,time);
	InvalidateRect(&Rect, FALSE);
	
	CDialog::OnTimer(nIDEvent);
}

void CTimerDlg::OnStop() 
{
	// TODO: Add your control notification handler code here
	IsStop = !IsStop;
    if(IsStop)KillTimer(110);
	if(!IsStop && IsBegin && !IsReset)SetTimer(110,10,NULL);
}

void CTimerDlg::OnReset() //复位，同时把IsStop，IsBegin复位为初始值
{
	// TODO: Add your control notification handler code here
	m=0;
	s=0;
	tenms=0;
	IsReset = true;
	IsStop = false;
	IsBegin = false;
	KillTimer(110);

	CClientDC dc(this);
	CString time;

	time.Format("%d    %02d:%02d:%02d.%02d",1,h,m,s,tenms);
	dc.TextOut(33,68,time);
}

void CAboutDlg::OnOK() 
{
	// TODO: Add extra validation here
	ShellExecute(m_hWnd,"open","about.txt",NULL,NULL,SW_SHOW);
	CDialog::OnOK();
}