squarecaldlldlg.cpp

华东理工大学李英所著《Visual C++编程与项目开发》的源代码。 本书简明扼要

// SquareCalDllDlg.cpp : implementation file
//

#include "stdafx.h"
#include "resource.h"
#include "SquareCalDllDlg.h"
#include "SquareCal.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CSquareCalDllDlg dialog


CSquareCalDllDlg::CSquareCalDllDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSquareCalDllDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSquareCalDllDlg)
	m_x = 0.0;
	m_y = 0.0;
	m_result = 0.0;
	//}}AFX_DATA_INIT
	m_pSet=NULL;
}


void CSquareCalDllDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSquareCalDllDlg)
	DDX_Text(pDX, IDC_EDIT1, m_x);
	DDX_Text(pDX, IDC_EDIT2, m_y);
	DDX_Text(pDX, IDC_EDIT3, m_result);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CSquareCalDllDlg, CDialog)
	//{{AFX_MSG_MAP(CSquareCalDllDlg)
	ON_BN_CLICKED(IDC_ADD, OnAdd)
	ON_BN_CLICKED(IDC_MINUS, OnMinus)
	ON_BN_CLICKED(IDC_RECORD_FIRST, OnRecordFirst)
	ON_BN_CLICKED(IDC_RECORD_PRE, OnRecordPre)
	ON_BN_CLICKED(IDC_RECORD_NEXT, OnRecordNext)
	ON_BN_CLICKED(IDC_RECORD_LAST, OnRecordLast)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSquareCalDllDlg message handlers

void CSquareCalDllDlg::OnAdd() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	CSquareCal cal;
	m_result=cal.MyAdd(m_x,m_y);
	UpdateData(false);	
}

void CSquareCalDllDlg::OnMinus() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	CSquareCal cal;
	m_result=cal.MyMinus(m_x,m_y);
	UpdateData(false);	
}

BOOL CSquareCalDllDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
    
	m_pSet=new CSquaredbSet(); 
	m_pSet->Open();
	m_pSet->MoveFirst();
	m_x=m_pSet->m_x;
	m_y=m_pSet->m_y;
	UpdateData(false);

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CSquareCalDllDlg::OnRecordFirst() 
{
	// TODO: Add your control notification handler code here
	m_pSet->MoveFirst();
	m_x=m_pSet->m_x;
	m_y=m_pSet->m_y;
	UpdateData(false);
}

void CSquareCalDllDlg::OnRecordPre() 
{
	// TODO: Add your control notification handler code here
	m_pSet->MovePrev();
	if(m_pSet->IsBOF())
	{
		AfxMessageBox("已是首记录!");
	    m_pSet->MoveFirst();
	}
	m_x=m_pSet->m_x;
	m_y=m_pSet->m_y;
	UpdateData(false);	
}

void CSquareCalDllDlg::OnRecordNext() 
{
	// TODO: Add your control notification handler code here
	m_pSet->MoveNext();
	if(m_pSet->IsEOF())
	{
		AfxMessageBox("已是末记录!");
	    m_pSet->MoveLast();
	}
	m_x=m_pSet->m_x;
	m_y=m_pSet->m_y;
	UpdateData(false);
	
}

void CSquareCalDllDlg::OnRecordLast() 
{
	// TODO: Add your control notification handler code here
	m_pSet->MoveLast();

	m_x=m_pSet->m_x;
	m_y=m_pSet->m_y;
	UpdateData(false);
}

/*void CSquareCalDllDlg::OnRecordAdd() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	m_pSet->AddNew();
    m_pSet->m_x=m_x;
    m_pSet->m_y=m_y;
    m_pSet->m_result=m_result;
	m_pSet->Update();
	m_pSet->Requery();
}

void CSquareCalDllDlg::OnRecordDel() 
{
	// TODO: Add your control notification handler code here
	m_pSet->Delete();
	if(!m_pSet->IsEOF())
		m_pSet->MoveNext();
	else
		m_pSet->MoveLast();
}
*/