calenderdlg.cpp

本程序是用VC++实现的.要求根据任意输入的年月日,判断该日是该年的哪天,程序实现的出错处理.年月日用YYYYMMDD表示

// calenderDlg.cpp : implementation file
//

#include "stdafx.h"
#include "calender.h"
#include "calenderDlg.h"
#include "stdlib.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)
	//}}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)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCalenderDlg dialog

CCalenderDlg::CCalenderDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCalenderDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCalenderDlg)
	m_input = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCalenderDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCalenderDlg)
	DDX_Text(pDX, IDC_EDIT1, m_input);
	DDV_MaxChars(pDX, m_input, 8);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCalenderDlg, CDialog)
	//{{AFX_MSG_MAP(CCalenderDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCalenderDlg message handlers

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

void CCalenderDlg::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 CCalenderDlg::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
	{
		CDialog::OnPaint();
	}
}

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

bool CCalenderDlg::isLeapYear(int year)
{
    if((year%400==0)||(year%4==0&&year%100!=0))
        return true;
    else
        return false;
}

int CCalenderDlg::countDays(int year,int month)
{
    if(month==1||month==3||month==5||month==7||month==8||month==10||month==12)
      return 31;
    else if(month==2)
	     {
            if (isLeapYear(year))
               return 29;
            else return 28;
	     }
	     else
         return 30;
}

bool CCalenderDlg::inputRight(int year,int month,int day)
{
	if(countDays(year,month)>=day)
	   return true;
   else
	   return false;
}

void CCalenderDlg::OnOK() 
{
	// TODO: Add extra validation here

	CString strYear,strMonth,strDay,temp;
    int   year,month,day;
	int   count=0;

	UpdateData(true);
	if(m_input.GetLength()!=8)
		AfxMessageBox("输入错误，请重新输入!");
	else
	    {
          strMonth=m_input.Mid(4,2);
          month=atoi(strMonth);
		  if((month>=1)&&(month<=12))
            {
		      strYear=m_input.Left(4);
	          year=atoi(strYear);
              strDay=m_input.Right(2);
			  day=atoi(strDay);
			  if(inputRight(year,month,day))
			  {
			     for(int i=1;i<month;i++)
				 {
			        count=count+countDays(year,i);
				 }
			     count+=day;
                 temp.Format("这是%d年中的第%d天",year,count);
				 AfxMessageBox(temp);
			  }
			  else
				  AfxMessageBox("该月没有那么多天,请重新输入!");
		    }
		  else
			  AfxMessageBox("没有这个月份,请重新输入!");
	    }
	m_input="";
	UpdateData(false);
	    
	//CDialog::OnOK();
}