calculatordlg.cpp

这是一个计算器小程序,实现加减乘除功能,适合初学者参考及学习!

// 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)
		// NOTE: the ClassWizard will add member initialization here
	//}}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_Control(pDX, IDC_EDIT_DISP, m_Disp);
	//}}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_BUT_1, OnBut1)
	ON_BN_CLICKED(IDC_BUTT_2, OnButt2)
	ON_BN_CLICKED(IDC_BUT_3, OnBut3)
	ON_BN_CLICKED(IDC_BUTT_PLUS, OnButtPlus)
	ON_BN_CLICKED(IDC_BUTT_4, OnButt4)
	ON_BN_CLICKED(IDC_BUT_5, OnBut5)
	ON_BN_CLICKED(IDC_BUT_6, OnBut6)
	ON_BN_CLICKED(IDC_BUTT_MIN, OnButtMin)
	ON_BN_CLICKED(IDC_BUT_7, OnBut7)
	ON_BN_CLICKED(IDC_BUT_8, OnBut8)
	ON_BN_CLICKED(IDC_BUT_9, OnBut9)
	ON_BN_CLICKED(IDC_BUTT_MUL, OnButtMul)
	ON_BN_CLICKED(IDC_BUT_0, OnBut0)
	ON_BN_CLICKED(IDC_BUTT_EQU, OnButtEqu)
	ON_BN_CLICKED(IDC_BUTT_CLEAR, OnButtClear)
	ON_BN_CLICKED(IDC_BUT_DIV, OnButDiv)
	//}}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::OnButton1() 
{
	// TODO: Add your control notification handler code here
	
}

void CCalculatorDlg::OnBut1() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('1'));	
}

void CCalculatorDlg::OnButt2() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('2'));	
}

void CCalculatorDlg::OnBut3() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('3'));	
}

void CCalculatorDlg::OnButtPlus() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('+'));
	
}

void CCalculatorDlg::OnButt4() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('4'));	
}

void CCalculatorDlg::OnBut5() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('5'));	
}

void CCalculatorDlg::OnBut6() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('6'));		
}

void CCalculatorDlg::OnButtMin() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('-'));	
}

void CCalculatorDlg::OnBut7() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('7'));		
}

void CCalculatorDlg::OnBut8() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('8'));		
}

void CCalculatorDlg::OnBut9() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('9'));		
}

void CCalculatorDlg::OnButtMul() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('*'));	
}

void CCalculatorDlg::OnBut0() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('0'));	
}

void CCalculatorDlg::OnButtEqu() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('='));	
}

void CCalculatorDlg::OnButtClear() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('C'));	
}

void CCalculatorDlg::OnButDiv() 
{
	// TODO: Add your control notification handler code here
	m_Disp.SetWindowText(m_cal.Input('/'));		
}