emailsview.cpp

讲mfc的书

// emailsView.cpp : implementation of the CEmailsView class
//

#include "stdafx.h"
#include "emails.h"

#include "emailsDoc.h"
#include "emailsView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CEmailsView

IMPLEMENT_DYNCREATE(CEmailsView, CFormView)

BEGIN_MESSAGE_MAP(CEmailsView, CFormView)
	//{{AFX_MSG_MAP(CEmailsView)
	ON_BN_CLICKED(IDC_NEXT, OnNext)
	ON_BN_CLICKED(IDC_PREV, OnPrev)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CEmailsView construction/destruction

CEmailsView::CEmailsView()
	: CFormView(CEmailsView::IDD)
{
	//{{AFX_DATA_INIT(CEmailsView)
	m_email = _T("");
	m_name = _T("");
	m_email1 = _T("");
	//}}AFX_DATA_INIT
	// TODO: add construction code here
	m_current=0;
}

CEmailsView::~CEmailsView()
{
}

void CEmailsView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CEmailsView)
	DDX_Text(pDX, IDC_EMAIL, m_email);
	DDV_MaxChars(pDX, m_email, 32);
	DDX_Text(pDX, IDC_NAME, m_name);
	DDV_MaxChars(pDX, m_name, 32);
	DDX_Text(pDX, IDC_EMAIL1, m_email1);
	DDV_MaxChars(pDX, m_email1, 32);
	//}}AFX_DATA_MAP
}

BOOL CEmailsView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CFormView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CEmailsView diagnostics

#ifdef _DEBUG
void CEmailsView::AssertValid() const
{
	CFormView::AssertValid();
}

void CEmailsView::Dump(CDumpContext& dc) const
{
	CFormView::Dump(dc);
}

CEmailsDoc* CEmailsView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CEmailsDoc)));
	return (CEmailsDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CEmailsView message handlers

void CEmailsView::OnNext() 
{
	CEmailsDoc *doc=GetDocument();
	UpdateData(TRUE);
	doc->db->name[m_current]=m_name;
	doc->db->email[m_current]=m_email;
	doc->db->email1[m_current]=m_email1;
	if (m_current==99) return;
	m_current++;
	if (m_current<=doc->db->m_count) 
	{
		doc->db->m_count=m_current;
		m_name=doc->db->name[m_current];
		m_email=doc->db->email[m_current];
		m_email1=doc->db->email1[m_current];
	}
	else
	{
		m_name="";
		m_email="";
		m_email1="";
		doc->db->m_count++;
	}
	UpdateData(FALSE);
}

void CEmailsView::OnPrev() 
{
	CEmailsDoc *doc=GetDocument();
	UpdateData(TRUE);
	doc->db->name[m_current]=m_name;
	doc->db->email[m_current]=m_email;
	doc->db->email1[m_current]=m_email1;
	if (m_current<=0) return;
	m_current--;
	UpdateView();
}

void CEmailsView::UpdateView()
{
	CEmailsDoc *doc=GetDocument();
	m_name=doc->db->name[m_current];
	m_email=doc->db->email[m_current];
	m_email1=doc->db->email1[m_current];
	UpdateData(FALSE);
}