mfcappcndlg.cpp

这是一个简单实用的复数计算器程序。界面和使用方法与Windows附带的计算器类似。可进行复数的加减乘除四则运算

// MFCAppCNDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MFCAppCN.h"
#include "MFCAppCNDlg.h"
#include "CCN.h"//My C Header file


#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()

/////////////////////////////////////////////////////////////////////////////
// CMFCAppCNDlg dialog

CMFCAppCNDlg::CMFCAppCNDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMFCAppCNDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMFCAppCNDlg)
	m_r = 0.0;
	m_i = 0.0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMFCAppCNDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMFCAppCNDlg)
	DDX_Text(pDX, IDC_EDITr, m_r);
	DDX_Text(pDX, IDC_EDITi, m_i);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMFCAppCNDlg, CDialog)
	//{{AFX_MSG_MAP(CMFCAppCNDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ADD, OnAdd)
	ON_BN_CLICKED(IDC_Sub, OnSub)
	ON_BN_CLICKED(IDC_Mul, OnMul)
	ON_BN_CLICKED(IDC_Div, OnDiv)
	ON_BN_CLICKED(IDC_Equ, OnEqu)
	ON_BN_CLICKED(IDC_Del, OnDel)
	ON_BN_CLICKED(IDC_sqrt, Onsqrt)
	ON_BN_CLICKED(IDC_Num1, OnNum1)
	ON_BN_CLICKED(IDC_RADIO_Real, OnRADIOReal)
	ON_BN_CLICKED(IDC_RADIO_image, OnRADIOimage)
	ON_BN_CLICKED(IDC_Num10, OnNum0)
	ON_BN_CLICKED(IDC_Num2, OnNum2)
	ON_BN_CLICKED(IDC_Num3, OnNum3)
	ON_BN_CLICKED(IDC_Num4, OnNum4)
	ON_BN_CLICKED(IDC_Num5, OnNum5)
	ON_BN_CLICKED(IDC_Num6, OnNum6)
	ON_BN_CLICKED(IDC_Num7, OnNum7)
	ON_BN_CLICKED(IDC_Num8, OnNum8)
	ON_BN_CLICKED(IDC_Num9, OnNum9)
	ON_BN_CLICKED(IDC_CONJ, OnConj)
	ON_BN_CLICKED(IDC_Decimal, OnDecimal)
	ON_BN_CLICKED(IDC_CE, OnCe)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMFCAppCNDlg message handlers

BOOL CMFCAppCNDlg::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 CMFCAppCNDlg::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 CMFCAppCNDlg::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 CMFCAppCNDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
//////////////////////////////////////////////////////
//begin
//////////////////////////////////////////////////////

CCN CN0, CN1;//2个存储操作数的全局变量

char Ope = '=';//存储运算符

bool bReal = true;//是否输入实部
int  Dec = 0;//记录小数点后位数
bool bInput = false;//是否在输入数字

CCN ResOfLastOpe(CCN &a, CCN &b)//进行运算，返回计算结果
{
	CCN result;

	switch (Ope)
	{
	case '+':
		result = a + b;
		break;
	case '-':
		result = a - b;
		break;
	case '*':
		result = a * b;
		break;
	case '/':
		result = a / b;
		break;
	case '=':
		result = b;
		break;
	default:
		result.set(0, 0);
	}

	return result;
}

double DecNum(int Num, int Dec)//返回十的Dec次幂乘Num的小数
{
	int i;
	double r;

	for(i = 0, r = 1; i < Dec; i++)
	{
		r *= 0.1;
	}
	r *= Num;

	return r;
}

void UpdateNum(double &m_r, double &m_i, bool bReal, int &Dec, int Num, bool &bInput)//更新数字
{
	if(!bInput)
	{
		m_r = m_i = 0;
		bInput = true;
	}
	if(bReal && m_r < 0 || !bReal && m_i < 0)
		Num = -Num;

	if(bReal)
		m_r = !Dec? m_r * 10 + Num: m_r + DecNum(Num, Dec);
	else
		m_i = !Dec? m_i * 10 + Num: m_i + DecNum(Num, Dec);

	if(Dec)
		Dec++;
}

void CMFCAppCNDlg::OnOK() 
{
	// TODO: Add extra validation here
	
	CDialog::OnOK();
}

void CMFCAppCNDlg::OnAdd() 	// 加法
{
	UpdateData(true);

	if (Ope == '=')
	{
		CN0.set(m_r, m_i);
	}
	else
	{
		CN1.set(m_r, m_i);
		CN0 = ResOfLastOpe(CN0, CN1);
		m_r = CN0.getr();
		m_i = CN0.geti();
	}	

	Ope = '+';
	Dec = 0;
	bInput = false;

	UpdateData(false);
}

void CMFCAppCNDlg::OnSub() 	// 减法
{
	UpdateData(true);

	if (Ope == '=')
	{
		CN0.set(m_r, m_i);
	}
	else
	{
		CN1.set(m_r, m_i);
		CN0 = ResOfLastOpe(CN0, CN1);
		m_r = CN0.getr();
		m_i = CN0.geti();
	}	

	Ope = '-';
	Dec = 0;
	bInput = false;

	UpdateData(false);
	
}

void CMFCAppCNDlg::OnMul() 	// 乘法
{
	UpdateData(true);

	if (Ope == '=')
	{
		CN0.set(m_r, m_i);
	}
	else
	{
		CN1.set(m_r, m_i);
		CN0 = ResOfLastOpe(CN0, CN1);
		m_r = CN0.getr();
		m_i = CN0.geti();
	}	

	Ope = '*';
	Dec = 0;
	bInput = false;

	UpdateData(false);	
}

void CMFCAppCNDlg::OnDiv() 	//除法
{	
	UpdateData(true);

	if (Ope == '=')
	{
		CN0.set(m_r, m_i);
	}
	else
	{
		CN1.set(m_r, m_i);
		CN0 = ResOfLastOpe(CN0, CN1);
		m_r = CN0.getr();
		m_i = CN0.geti();
	}	

	Ope = '/';
	Dec = 0;
	bInput = false;

	UpdateData(false);	
}

void CMFCAppCNDlg::OnEqu() 	// 等于
{
	UpdateData(true);

	CN1.set(m_r, m_i);
	CN0 = ResOfLastOpe(CN0, CN1);
	
	m_r = CN0.getr();
	m_i = CN0.geti();

	Ope = '=';
	Dec = 0;
	bInput = false;

	UpdateData(false);
}

void CMFCAppCNDlg::OnDel() 	// 清除
{
	m_r = m_i = 0;

	Ope = '=';
	Dec = 0;

	UpdateData(false);	
}



void CMFCAppCNDlg::Onsqrt() //开方
{
	double rm,ra;//平方根的模和幅角

	UpdateData(true);

	CN1.set(m_r, m_i);

	rm = sqrt(CN1.getm());
	ra = CN1.geta()/2;

	m_r = rm * cos(ra);
	m_i = rm * sin(ra);

	CN0.set(m_r, m_i);
	Dec = 0;

	UpdateData(false);	
}


void CMFCAppCNDlg::OnRADIOReal() 
{
	// TODO: Add your control notification handler code here
	bReal = true;
	Dec = 0;
}

void CMFCAppCNDlg::OnRADIOimage() 
{
	bReal = false;	
	Dec = 0;
}

void CMFCAppCNDlg::OnNum0() 
{
	UpdateNum(m_r, m_i, bReal, Dec , 0, bInput);

	UpdateData(false);	
}


void CMFCAppCNDlg::OnNum1() //1
{
	UpdateNum(m_r, m_i, bReal, Dec, 1, bInput);

	UpdateData(false);
}

void CMFCAppCNDlg::OnNum2() 
{
	UpdateNum(m_r, m_i, bReal, Dec, 2, bInput);

	UpdateData(false);
}

void CMFCAppCNDlg::OnNum3() 
{
	UpdateNum(m_r, m_i, bReal, Dec, 3, bInput);
	UpdateData(false);	
}

void CMFCAppCNDlg::OnNum4() 
{
	UpdateNum(m_r, m_i, bReal, Dec, 4, bInput);
	UpdateData(false);	
}

void CMFCAppCNDlg::OnNum5() 
{
	UpdateNum(m_r, m_i, bReal, Dec, 5, bInput);

	UpdateData(false);	
}

void CMFCAppCNDlg::OnNum6() 
{
	UpdateNum(m_r, m_i, bReal, Dec, 6, bInput);

	UpdateData(false);	
}

void CMFCAppCNDlg::OnNum7() 
{
	UpdateNum(m_r, m_i, bReal, Dec, 7, bInput);

	UpdateData(false);	
}

void CMFCAppCNDlg::OnNum8() 
{
	UpdateNum(m_r, m_i, bReal, Dec, 8, bInput);

	UpdateData(false);	
}

void CMFCAppCNDlg::OnNum9() 
{
	UpdateNum(m_r, m_i, bReal, Dec, 9, bInput);

	UpdateData(false);	
}

void CMFCAppCNDlg::OnConj() 
{
	m_i = - m_i;
	
	UpdateData(false);	
}

void CMFCAppCNDlg::OnDecimal() 
{
	if(!Dec)	
		Dec = 1;
}

void CMFCAppCNDlg::OnCe() 
{
	m_r = m_i = 0;
	
	UpdateData(false);
}