MFC计算器

// CalculatorDlg.cpp : implementation file // #include "stdafx.h" #include "Calculator.h" #include "CalculatorDlg.h" #include "Math.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() ///////////////////////////////////////////////////////////////////////////// // CCalculatorDlg dialog CCalculatorDlg::CCalculatorDlg(CWnd* pParent /*=NULL*/) : CDialog(CCalculatorDlg::IDD, pParent) { //{{AFX_DATA_INIT(CCalculatorDlg) m_edit1 = _T(""); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CCalculatorDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CCalculatorDlg) DDX_Text(pDX, IDC_EDIT1, m_edit1); DDV_MaxChars(pDX, m_edit1, 18); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CCalculatorDlg, CDialog) //{{AFX_MSG_MAP(CCalculatorDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BUTTON0, OnButton0) ON_BN_CLICKED(IDC_BUTTON1, OnButton1) ON_BN_CLICKED(IDC_BUTTON2, OnButton2) ON_BN_CLICKED(IDC_BUTTON3, OnButton3) ON_BN_CLICKED(IDC_BUTTON4, OnButton4) ON_BN_CLICKED(IDC_BUTTON5, OnButton5) ON_BN_CLICKED(IDC_BUTTON6, OnButton6) ON_BN_CLICKED(IDC_BUTTON7, OnButton7) ON_BN_CLICKED(IDC_BUTTON8, OnButton8) ON_BN_CLICKED(IDC_BUTTON9, OnButton9) ON_BN_CLICKED(IDC_BUTTONadd, OnBUTTONadd) ON_BN_CLICKED(IDC_BUTTONback, OnBUTTONback) ON_BN_CLICKED(IDC_BUTTONcalc, OnBUTTONcalc) ON_BN_CLICKED(IDC_BUTTONcen, OnBUTTONcen) ON_BN_CLICKED(IDC_BUTTONcls, OnBUTTONcls) ON_BN_CLICKED(IDC_BUTTONcu, OnBUTTONcu) ON_BN_CLICKED(IDC_BUTTONfu, OnBUTTONfu) ON_BN_CLICKED(IDC_BUTTONpoint, OnBUTTONpoint) ON_BN_CLICKED(IDC_BUTTONsub, OnBUTTONsub) ON_BN_CLICKED(IDC_BUTTON10, OnButton10) ON_BN_CLICKED(IDC_BUTTON11, OnButton11) ON_BN_CLICKED(IDC_BUTTON12, OnButton12) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CCalculatorDlg message handlers BOOL CCalculatorDlg::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 m_edit1=""; //对显示屏进行初始化，显示0 UpdateData(false); return TRUE; // return TRUE unless you set the focus to a control } void CCalculatorDlg::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 CCalculatorDlg::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 CCalculatorDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CCalculatorDlg::OnButton0() { UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='0'; UpdateData(false); } void CCalculatorDlg::OnButton1() { // TODO: Add your control notification handler code here UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='1'; UpdateData(false); } void CCalculatorDlg::OnButton2() { // TODO: Add your control notification handler code here UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='2'; UpdateData(false); } void CCalculatorDlg::OnButton3() { UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='3'; UpdateData(false); } void CCalculatorDlg::OnButton4() { UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='4'; UpdateData(false); } void CCalculatorDlg::OnButton5() { UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='5'; UpdateData(false); } void CCalculatorDlg::OnButton6() { UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='6'; UpdateData(false); } void CCalculatorDlg::OnButton7() { UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='7'; UpdateData(false); } void CCalculatorDlg::OnButton8() {UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='8'; UpdateData(false); } void CCalculatorDlg::OnButton9() { UpdateData(); if(cat==1) ; else if(m_edit1=="0.") m_edit1=""; m_edit1+='9'; UpdateData(false); } void CCalculatorDlg::OnBUTTONadd() { // TODO: Add your control notification handler code here UpdateData(); cs1=m_edit1; m_edit1=""; sos=1; UpdateData(false); } void CCalculatorDlg::OnBUTTONback() { UpdateData(); m_edit1=m_edit1.Left(m_edit1.GetLength()-1); UpdateData(false); } void CCalculatorDlg::OnBUTTONcalc() { // TODO: Add your control notification handler code here double f1,f2,f3; switch (sos) { case 1: UpdateData(); cs2=m_edit1; if(cs1.Left(1)!='-') f1=atof(cs1); if(cs1.Left(1)=='-') { cs1=cs1.Right(cs1.GetLength()-1); f1=(-1)*(atof(cs1)); } f2=atof(cs2); f3=f1+f2; m_edit1.Format("%f",f3); UpdateData(false); break; case 2: UpdateData(); cs2=m_edit1; f1=atof(cs1); f2=atof(cs2); f3=f1-f2; m_edit1.Format("%f",f3); UpdateData(false); break; case 3: UpdateData(); cs2=m_edit1; f1=atof(cs1); f2=atof(cs2); f3=f1*f2; m_edit1.Format("%f",f3); UpdateData(false); break; case 4: UpdateData(); cs2=m_edit1; f1=atof(cs1); f2=atof(cs2); if(f2==0) MessageBox("�