dlgcal.cpp

数据结构中

// DlgCal.cpp : implementation file
//

#include "stdafx.h"
#include "Ex_BDSYL.h"
#include "DlgCal.h"
#include<iostream.h>
#include<fstream.h>

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#include "Calculat.cpp"
/////////////////////////////////////////////////////////////////////////////
// DlgCal dialog


DlgCal::DlgCal(CWnd* pParent /*=NULL*/)
	: CDialog(DlgCal::IDD, pParent)
{
	//{{AFX_DATA_INIT(DlgCal)
	m_result = _T("");
	m_outfilename = _T("");
	m_dataout = _T("");
	m_datain = _T("");
	//}}AFX_DATA_INIT
}


void DlgCal::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(DlgCal)
	DDX_Text(pDX, IDC_EDIT_RESULT, m_result);
	DDX_Text(pDX, IDC_EDIT_OUTFILENAME, m_outfilename);
	DDX_Text(pDX, IDC_EDIT_DATAOUT, m_dataout);
	DDX_Text(pDX, IDC_EDIT_DATAIN, m_datain);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(DlgCal, CDialog)
	//{{AFX_MSG_MAP(DlgCal)
	ON_BN_CLICKED(IDC_BUTTON_OUTFILE, OnButtonOutfile)
	ON_BN_CLICKED(IDC_BUTTON_CALCULATE, OnButtonCalculate)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// DlgCal message handlers

void DlgCal::OnButtonOutfile() 
{
	// TODO: Add your control notification handler code here
	CFileDialog dlg(true);
	if(dlg.DoModal()==IDOK)
	{
	    m_outfilename=dlg.GetFileName();
		UpdateData(false);
	}
}

void DlgCal::OnButtonCalculate() 
{
	UpdateData(true);
	if(m_datain=="")
	{
		MessageBox("表达式不能为空!!!");
	    return;
	}
	Calculator<Rational> m_Cal(50);
	if(m_outfilename=="")
		m_outfilename="Calculator.out";
	Rational m_showResult=m_Cal.Run(m_datain,m_outfilename);

	
	if(m_showResult.Getden()==1)
		m_result.Format("%d",m_showResult.Getnum());
	else
		m_result.Format("%d/%d",m_showResult.Getnum(),m_showResult.Getden());
	Dispdatafromfile(m_outfilename);
	UpdateData(false);
	// TODO: Add your control notification handler code here
}


void DlgCal::Dispdatafromfile(CString fname)
{
	ifstream fin;
	char ch;
    fin.open(fname,ios::in|ios::nocreate);
    if (!fin)
    {
		AfxMessageBox("文件不存在!");
		return; 
	}
	m_dataout="";
	while(fin.get(ch))
	{
		if(ch=='\n')
            m_dataout+="\r\n";
		else
    		m_dataout+=ch;
	}
    fin.close();
	return;

}