// exp30_1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "exp30_1.h"
#include "exp30_1Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CExp30_1Dlg dialog

CExp30_1Dlg::CExp30_1Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CExp30_1Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CExp30_1Dlg)
	m_result = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CExp30_1Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CExp30_1Dlg)
	DDX_Text(pDX, IDC_EDIT1, m_result);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CExp30_1Dlg, CDialog)
	//{{AFX_MSG_MAP(CExp30_1Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_CONTROL_RANGE(BN_CLICKED,IDC_NUMBER1,IDC_NUMBER9,OnNumberkey)
	ON_CONTROL_RANGE(BN_CLICKED,IDC_OPERATOR1,IDC_OPERATOR6,OnOperatorkey)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CExp30_1Dlg message handlers

BOOL CExp30_1Dlg::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
	num1=0;
	nOP=0;
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CExp30_1Dlg::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 CExp30_1Dlg::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 CExp30_1Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CExp30_1Dlg::OnNumberkey(UINT nID) 
{
	// TODO: Add your control notification handler code here
	switch(nID){
	case IDC_NUMBER1:m_result=m_result*10+1;break;
	case IDC_NUMBER2:m_result=m_result*10+2;break;
	case IDC_NUMBER3:m_result=m_result*10+3;break;
	case IDC_NUMBER4:m_result=m_result*10+4;break;
	case IDC_NUMBER5:m_result=m_result*10+5;break;
	case IDC_NUMBER6:m_result=m_result*10+6;break;
	case IDC_NUMBER7:m_result=m_result*10+7;break;
	case IDC_NUMBER8:m_result=m_result*10+8;break;
	case IDC_NUMBER9:m_result=m_result*10+9;break;
	case IDC_NUMBER0:m_result=m_result*10;break;
	}
	UpdateData(false);
}

void CExp30_1Dlg::OnOperatorkey(UINT nID) 
{
	// TODO: Add your control notification handler code here
	UpdateData(false);
	switch(nID){
	case IDC_OPERATOR1:num1=m_result;m_result=0;nOP=1;break;  //加
	case IDC_OPERATOR2:num1=m_result;m_result=0;nOP=2;break;  //減
	case IDC_OPERATOR3:num1=m_result;m_result=0;nOP=3;break;  //乘
	case IDC_OPERATOR4:num1=m_result;m_result=0;nOP=4;break;  //除
	case IDC_OPERATOR5:Calc();nOP=0;break;         //等號
	case IDC_OPERATOR6:num1=0;m_result=0;nOP=0;    //清除
	}
	UpdateData(false);
}

void CExp30_1Dlg::Calc()
{
	switch(nOP){
	case 1:num1+=m_result;break;
	case 2:num1-=m_result;break;
	case 3:num1*=m_result;break;
	case 4:num1/=m_result;break;
	}
	m_result=num1;
	UpdateData(false);
}