expressioncalculatedlg.cpp

计算机器程序~ 附带词法分析~

// ExpressionCalculateDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ExpressionCalculate.h"
#include "ExpressionCalculateDlg.h"
#include "Test.h"

#include "CalExpression.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()

/////////////////////////////////////////////////////////////////////////////
// CExpressionCalculateDlg dialog

CExpressionCalculateDlg::CExpressionCalculateDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CExpressionCalculateDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CExpressionCalculateDlg)
	m_strExpression = _T("(-4-1)*(-5)");
	m_strResult = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CExpressionCalculateDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CExpressionCalculateDlg)
	DDX_Text(pDX, IDC_EDIT_TEST, m_strExpression);
	DDX_Text(pDX, IDC_EDIT_RESULT, m_strResult);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CExpressionCalculateDlg, CDialog)
	//{{AFX_MSG_MAP(CExpressionCalculateDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CExpressionCalculateDlg message handlers

BOOL CExpressionCalculateDlg::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 CExpressionCalculateDlg::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 CExpressionCalculateDlg::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();
	}
}

HCURSOR CExpressionCalculateDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CExpressionCalculateDlg::OnButton1() 
{
	
	
	UpdateData();
	CString tem = m_strExpression;
	CString Tail = "#";
	tem += Tail;

	WordAnalyse MyWords(tem.GetBuffer(0));
	if(MyWords.GetResult() == false)
	{
		MessageBox("词法错误");
		return;
	}

	CalExpression expression(tem.GetBuffer(0));
	int type = expression.Calculate();

	
	if(expression.GetValueType()==0)

		m_strResult.Format("%d",expression.GetIntResult());


	if(expression.GetValueType()==1)
		m_strResult.Format("%f",expression.GetDoubleResult());

	if(expression.GetValueType()== -1)
	
		MessageBox("语法错误");
	UpdateData(0);
}



void CExpressionCalculateDlg::OnButton2() 
{
	CString test = "-12.36";
	double data = atof(test.GetBuffer(0));
	m_strResult.Format("%f",data);
	UpdateData(0);
}

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

void CExpressionCalculateDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	
	CDialog::OnCancel();
}