calculatordlg.cpp

计算器运算器

// CalculatorDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Calculator.h"
#include "CalculatorDlg.h"
#include "Math.h"


#ifdef _DEBUG //如果没有定义_DEBUG 
#define new DEBUG_NEW //定义DEBUG_NEW宏替代new 
#undef THIS_FILE //取消THIS_FILE这个宏定义 
static char THIS_FILE[] = __FILE__; //这个就是平常的变量定义了 
#endif    //如果（**）为真，也就是逻辑1，的话就编译下面的语句。如果（**）不为真。则不编译下面的语句。 


/////////////////////////////////////////////////////////////////////////////
// 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
}

//第一个是：CAboutDlg继承CDialog，对应于程序的"关于"对话框。 
//第二个是：CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 
//CAboutDlg() 是构造函数，CDialog(CAboutDlg::IDD)是调用父类的构造函数，运行时，先构造父类，再构造自身。 
//第三个是：定义一个名为DoDataExchange，返回值为空的虚函数，一般用来数据交换，
//将界面上的数据和对话框成员变量关联起来，这个函数一般不用手写代码，使用向导会自动生成代码，但如果要删除关联就需要手动将里面的一些代码删除了 




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("被除数不能为零!");
	else{
    f3=f1/f2;
	m_edit1.Format("%f",f3);}
		
	UpdateData(false);
	break;
	case 6:
		UpdateData();
	cs2=m_edit1;
	f1=atof(cs1);
	f2=atof(cs2);
	

    f3=int(f1)%int(f2);
	m_edit1.Format("%f",f3);
		
	UpdateData(false);
	break;
	
	
    


	
	}

	

}

void CCalculatorDlg::OnBUTTONcen() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	
	cs1=m_edit1;
	m_edit1="";
	sos=3;
    UpdateData(false);
}

void CCalculatorDlg::OnBUTTONcls() 
{
		UpdateData();
	m_edit1="";
	sos=0;
	
	UpdateData(false);
}

void CCalculatorDlg::OnBUTTONcu() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	
	cs1=m_edit1;
	m_edit1="";
	sos=4;
    UpdateData(false);
}

void CCalculatorDlg::OnBUTTONfu() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	//cs1=m_edit1;
	//m_edit1="";
	
     if(m_edit1.Left(1)=='-')  //截取m_edit1左边第一个字符'-'
		 
	     m_edit1=m_edit1.Right(m_edit1.GetLength()-1); 
	 
	 
      else
	  m_edit1='-'+m_edit1;
	
	 
	  
  sos=5;	

	
    UpdateData(false);
}

void CCalculatorDlg::OnBUTTONpoint() 
{
	// TODO: Add your control notification handler code here
		UpdateData();
	
			m_edit1+=".";
		
	cat=1;
	
    UpdateData(false);
}

void CCalculatorDlg::OnBUTTONsub() 
{
	// TODO: Add your control notification handler code here
	UpdateData();

	cs1=m_edit1;
	m_edit1="";
	sos=2;
    UpdateData(false);
}

void CCalculatorDlg::OnButton10() 
{
	// TODO: Add your control notification handler code here
	UpdateData();

	cs1=m_edit1;
	m_edit1="";
	sos=6;
    UpdateData(false);	
}

void CCalculatorDlg::OnButton11() 
{

UpdateData();
double f1,f3;
	cs1=m_edit1;
	
	
	
	f1=atof(cs1);
	if(f1<0)
		MessageBox("负数没有平方根!");
	else
	{
	
    f3=sqrt(f1);
	m_edit1.Format("%f",f3);}
	UpdateData(false);
	
   	
	
}

void CCalculatorDlg::OnButton12() 
{
	UpdateData();
double f1,f3;
	cs1=m_edit1;
	f1=atof(cs1);
	if(f1==0)
		MessageBox("被除数不能为零!");
	else
	{f3=1/f1;
	m_edit1.Format("%f",f3);}
	UpdateData(false);
}