calculatordlg.cpp

MFC做的计算器 是我在学校期间由于课程设计的需要才做的

// CalculatorDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Calculator.h"
#include "CalculatorDlg.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_result = 0.0;
	m_number = 0.0;
	//}}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_EDIT2, m_result);
	DDX_Text(pDX, IDC_EDIT1, m_number);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCalculatorDlg, CDialog)
	//{{AFX_MSG_MAP(CCalculatorDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_COMMAND_RANGE(IDC_NUMBER1,IDC_NUMBER10,OnNumberKey)
	ON_BN_CLICKED(IDC_ADD, OnAdd)
	ON_BN_CLICKED(IDC_SUB, OnSub)
	ON_BN_CLICKED(IDC_MUTIPLY, OnMutiply)
	ON_BN_CLICKED(IDC_DIVID, OnDivid)
	ON_BN_CLICKED(IDC_SQRT, OnSqrt)
	ON_BN_CLICKED(IDC_RECIPROCAL, OnReciprocal)
	ON_BN_CLICKED(IDC_EQUAL, OnEqual)
	ON_BN_CLICKED(IDC_SIN, OnSin)
	ON_BN_CLICKED(IDC_COS, OnCos)
	ON_BN_CLICKED(IDC_TAN, OnTan)
	ON_BN_CLICKED(IDC_PINGFANG, OnPingfang)
	ON_BN_CLICKED(IDC_LIFANG, OnLifang)
	ON_BN_CLICKED(IDC_NCIFANG, OnNcifang)
	ON_BN_CLICKED(IDC_EXP, OnExp)
	ON_BN_CLICKED(IDC_LN, OnLn)
	ON_BN_CLICKED(IDC_LOG, OnLog)
	ON_BN_CLICKED(IDC_CLEAR, OnClear)
	ON_BN_CLICKED(IDC_SIGN, OnSign)
	ON_BN_CLICKED(IDC_NODE, OnNode)
	//}}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
	
	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::OnNumberKey(UINT nID)
{
	int n=0;
	switch(nID)
	{
	case IDC_NUMBER1:	n=1;	break;
	case IDC_NUMBER2:	n=2;	break;
	case IDC_NUMBER3:	n=3;	break;
	case IDC_NUMBER4:	n=4;	break;
	case IDC_NUMBER5:	n=5;	break;
	case IDC_NUMBER6:	n=6;	break;
	case IDC_NUMBER7:	n=7;	break;
	case IDC_NUMBER8:	n=8;	break;
	case IDC_NUMBER9:	n=9;	break;
	case IDC_NUMBER10:	n=0;	break;
	}
	if(node!=1)
	{
		m_number=m_number*10+n;
		UpdateData(FALSE);
	}
	else
		if(node==1)
		{
			m_number=m_number+m_base*n;
			m_base=m_base*m_bb;
			UpdateData(FALSE);
		}                                                                                            
}



void CCalculatorDlg::Result()
{
	switch(m_bit)
	{
	case 1:		m_result+=m_number;	break;
	case 2:		m_result-=m_number;	break;
	case 3:		m_result*=m_number;	break;
	case 4:
		if(m_number==0)
		{
			m_result/=m_number;	
			UpdateData(FALSE);
			AfxMessageBox ("除数不能为0，请重新输入");
		}
		else
		m_result/=m_number;	
		break;
	case 5:
		if(m_result<0)
		{
			m_result=sqrt(m_result);
			UpdateData(FALSE);
			AfxMessageBox ("开方不能为负数，请重新输入");
		}
		else
		m_result=sqrt(m_result);
		break;
	case 6:
		if(m_result==0)
		{
			m_result=1/m_result;
			UpdateData(FALSE);
			AfxMessageBox ("分母不能为0，请重新输入");
		}
		else
		m_result=1/m_result;
		break;
	case 7:		break;
	case 8:		m_result=sin(m_result*PI/180);break;
	case 9:		m_result=cos(m_result*PI/180);break;
	case 10:	m_result=tan(m_result*PI/180);break;
	case 11:	m_result=m_result*m_result;	break;
	case 12:	m_result=m_result*m_result*m_result;break;
	case 13:	m_result=pow(m_result,m_number);break;
	case 14:	m_result=exp(m_result);	break;
	case 15:	
		if(m_result<0)
		{
			m_result=log(m_result);	
			UpdateData(FALSE);
			AfxMessageBox ("输入有误，请重新输入");
		}
		else
		m_result=log(m_result);	
		break;
	case 16:	
		if(m_result<0)
		{
			m_result=log10(m_result);
			UpdateData(FALSE);
			AfxMessageBox ("输入有误，请重新输入");
		}
		else
		m_result=log10(m_result);
		break;
	default:	m_result=m_number;break;
	}

	m_number=0.0;
//	m_bit=0;
	node=0;
	m_base=0.0;
	UpdateData(FALSE);
}

void CCalculatorDlg::OnAdd() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=1;
}

void CCalculatorDlg::OnSub() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=2;
}

void CCalculatorDlg::OnMutiply() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=3;
}

void CCalculatorDlg::OnDivid() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=4;
}

void CCalculatorDlg::OnSqrt() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=5;
}


void CCalculatorDlg::OnReciprocal() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=6;
}

void CCalculatorDlg::OnEqual() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=0;
}

void CCalculatorDlg::OnSin() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=8;
}

void CCalculatorDlg::OnCos() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=9;
}

void CCalculatorDlg::OnTan() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=10;
}

void CCalculatorDlg::OnPingfang() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=11;
}

void CCalculatorDlg::OnLifang() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=12;
}

void CCalculatorDlg::OnNcifang() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=13;
}

void CCalculatorDlg::OnExp() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=14;
}

void CCalculatorDlg::OnLn() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=15;
}

void CCalculatorDlg::OnLog() 
{
	// TODO: Add your control notification handler code here
	Result();
	m_bit=16;
}

void CCalculatorDlg::OnClear() 
{
	// TODO: Add your control notification handler code here
	m_result=0.0;
	m_number=0.0;
	m_bit=0;
	node=0;
	UpdateData(FALSE);
}

void CCalculatorDlg::OnSign() 
{
	// TODO: Add your control notification handler code here
	m_number=-m_number;
	UpdateData(FALSE);
}

void CCalculatorDlg::OnNode() 
{
	// TODO: Add your control notification handler code here
	node=1;
	m_base=0.1;
	//m_bb=0.1;
}