clientdlg.cpp

socket编程

// ClientDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Client.h"
#include "ClientDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CClientDlg dialog

CClientDlg::CClientDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CClientDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CClientDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CClientDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CClientDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CClientDlg, CDialog)
	//{{AFX_MSG_MAP(CClientDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_OPEN, OnOpen)
	ON_BN_CLICKED(IDC_SEND, OnSend)
	ON_WM_CLOSE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CClientDlg message handlers

BOOL CClientDlg::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
	CString str;
	str.Format("Idle");
	SetSysText(str);
	CProgressCtrl *pCtrl=(CProgressCtrl*)GetDlgItem(IDC_PROGRESS);
	pCtrl->SetRange(0,100);
	pCtrl->SetPos(0);
    m_pSocket=NULL;

	//for test
	CIPAddressCtrl *pIPCtrl=(CIPAddressCtrl*)GetDlgItem(IDC_IPADDRESS);
	pIPCtrl->SetAddress(192,168,2,107);
	CEdit *pEdit=(CEdit*)GetDlgItem(IDC_PORTNUM);
	pEdit->SetWindowText("2048");

	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CClientDlg::OnOpen() 
{
	// TODO: Add your control notification handler code here
	CFileDialog *pDlg=new CFileDialog(TRUE);
	if (pDlg->DoModal()==IDOK)
	{
		m_strFileName=pDlg->GetPathName();
		CEdit *pEdit=(CEdit*)GetDlgItem(IDC_FILENAME);
		pEdit->SetWindowText(m_strFileName);
	}
}

void CClientDlg::OnSend() 
{
	// TODO: Add your control notification handler code here
	CString sysstr;
	
	//first open the file to be transmitted
	GetFileNameFromCtrl();
	CFile *fp=new CFile;
	if (!fp->Open(m_strFileName,CFile::modeRead))
	{
		sysstr.Format("can NOT open the file");
		SetSysText(sysstr);
		MessageBox("Can NOT open the file");
		delete fp;
		return;
	}
    
	m_pSocket=new CSocket;
	m_pSocket->Create();
    
	//then connect server socket
	GetIPAddressFromCtrl();
	GetPortNumFromCtrl();
	sysstr.Format("Connecting...");
	SetSysText(sysstr);
	if(!m_pSocket->Connect(m_strIPAddress,m_uPortNum))
	{
		sysstr.Format("NOT connected");
		SetSysText(sysstr);
		MessageBox("Can NOT connect!");
		fp->Close();
		delete fp;
		m_pSocket->Close();
		delete m_pSocket;
		m_pSocket=NULL;
		return;
	}
    
	CSocketFile SockFile(m_pSocket);
	CArchive arOut(&SockFile,CArchive::store);

	//begin transmitting
	sysstr.Format("Transmitting...");
	SetSysText(sysstr);
    CProgressCtrl *pCtrl=(CProgressCtrl *)GetDlgItem(IDC_PROGRESS);
	pCtrl->SetPos(0);
	
	//first,send the length of file to the server
	arOut<<fp->GetLength();                  //CFile *fp=new CFile
	//then,send the name of file to the server
	arOut<<fp->GetFileName();
    //at last,send the file itself
    char buf[2048];
	UINT Result;
	m_dwTransmittedFileLength=0;
	do{
		Result=fp->Read(buf,2048);
		arOut.Write(buf,Result);
		m_dwTransmittedFileLength+=Result;
		pCtrl->SetPos(m_dwTransmittedFileLength*100./fp->GetLength());
	}
	while(m_dwTransmittedFileLength<fp->GetLength());
	
	//tranmission accomplished
	sysstr.Format("Transmission accomplished");
	SetSysText(sysstr);
//	MessageBox("Transmission accomplished");
	arOut.Close();
	SockFile.Close();
	fp->Close();
	delete fp;
	m_pSocket->Close();
	delete m_pSocket;
	m_pSocket=NULL;
}

CString CClientDlg::GetIPAddressFromCtrl()
{
    CIPAddressCtrl *pIPCtrl=(CIPAddressCtrl*)GetDlgItem(IDC_IPADDRESS);
	BYTE field[4];
	pIPCtrl->GetAddress(field[0],field[1],field[2],field[3]);
    m_strIPAddress.Empty();
	char buf[20];
	CString str=_itoa(field[0],buf,10);  //Convert an integer to a string
	m_strIPAddress=str+".";
	str=_itoa(field[1],buf,10);
	m_strIPAddress+=str+".";
	str=_itoa(field[2],buf,10);
	m_strIPAddress+=str+".";
	str=_itoa(field[3],buf,10);
	m_strIPAddress+=str;
    return m_strIPAddress;
}



UINT CClientDlg::GetPortNumFromCtrl()
{
    CEdit *pEdit=(CEdit*)GetDlgItem(IDC_PORTNUM);
	CString str;
	pEdit->GetWindowText(str);
	m_uPortNum=(UINT)atoi((LPCTSTR)str);
	return m_uPortNum;
}

void CClientDlg::SetSysText(CString &str)
{
	CEdit *pEdit=(CEdit *)GetDlgItem(IDC_SYSSTATUS);
	pEdit->SetWindowText(str);
}

CString CClientDlg::GetFileNameFromCtrl()
{
	CEdit *pEdit=(CEdit *)GetDlgItem(IDC_FILENAME);
	pEdit->GetWindowText(m_strFileName);
	return m_strFileName;
}

void CClientDlg::OnClose() 
{
	// TODO: Add your message handler code here and/or call default
	if (m_pSocket!=NULL)
	{
		m_pSocket->Close();
		delete m_pSocket;
	}
	CDialog::OnClose();
}