// UDPTSTDlg.cpp : implementation file
//

#include "stdafx.h"
#include "UDPTST.h"
#include "UDPTSTDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CUDPTSTDlg dialog

CUDPTSTDlg::CUDPTSTDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CUDPTSTDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CUDPTSTDlg)
	m_sSendStr = _T("");
	m_sRevStr = _T("");
	m_localIP = _T("");
	m_lp = 0;
	m_remoteIP = _T("");
	m_rp = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
    m_nSendNum = 0;
	m_nRevNum = 0;
	TimerFlg = 0;

	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CUDPTSTDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CUDPTSTDlg)
	DDX_Text(pDX, IDC_SENDSTR, m_sSendStr);
	DDX_Text(pDX, IDC_REVSTR, m_sRevStr);
	DDX_Text(pDX, IDC_IPADDR, m_localIP);
	DDX_Text(pDX, IDC_PORT, m_lp);
	DDX_Text(pDX, IDC_IPADDR2, m_remoteIP);
	DDX_Text(pDX, IDC_PORT2, m_rp);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CUDPTSTDlg, CDialog)
	//{{AFX_MSG_MAP(CUDPTSTDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SEND, OnSend)
	ON_BN_CLICKED(IDC_STOP, OnStop)
	ON_WM_TIMER()
	ON_BN_CLICKED(IDCREAT, OnCreat)
	ON_BN_CLICKED(IDCLOSE, OnClose)
	ON_BN_CLICKED(IDC_MSEND, OnMsend)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CUDPTSTDlg message handlers

BOOL CUDPTSTDlg::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
    m_localIP = "192.168.201.121";
	m_lp = 6800;

	m_remoteIP = "192.168.201.16";
	m_rp = 6802;

	UpdateData(FALSE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CUDPTSTDlg::OnClose()
{
    if( TimerFlg==1 )
	{
		KillTimer( 1 );
		TimerFlg =  0;
	}
	m_sockSend.Close();
	GetDlgItem(IDCREAT)->EnableWindow( TRUE);
	GetDlgItem( IDCLOSE)->EnableWindow( FALSE );
	GetDlgItem( IDC_SEND )->EnableWindow( FALSE );
	GetDlgItem( IDC_MSEND )->EnableWindow( FALSE );
	GetDlgItem(IDC_STOP)->EnableWindow( FALSE );
}

void CUDPTSTDlg::OnReceive()
{
	char szRecv[1500];
	UINT uPort;  //=6800;
    int iRecv = 0;
	uPort = m_lp;
	iRecv = m_sockSend.ReceiveFrom(szRecv,1500, m_localIP, uPort, 0);

    //TRACE("received %d byte\n",iRecv);
	if( iRecv<0 )   return;
	szRecv[iRecv]='\0';
	m_sRevStr=szRecv;
	m_nRevNum++;
	sprintf( szRecv, "--%d", m_nRevNum );
	m_sRevStr += szRecv;
    UpdateData(FALSE);
}

void CUDPTSTDlg::OnSend() 
{
	// TODO: Add your control notification handler code here
	SetTimer( 1, 5, NULL );
	TimerFlg = 1;
    //GetDlgItem(IDC_PORT)->EnableWindow( FALSE );
	GetDlgItem(IDC_SEND )->EnableWindow(FALSE);
	GetDlgItem(IDC_STOP)->EnableWindow(TRUE);
}



void CUDPTSTDlg::OnStop() 
{
	// TODO: Add your control notification handler code here
	
	KillTimer( 1 );
	TimerFlg =  0;
    m_nSendNum = 0;
	m_nRevNum = 0;

	m_sSendStr.Empty();
	m_sRevStr.Empty();
	UpdateData(FALSE );
	GetDlgItem(IDC_STOP)->EnableWindow(FALSE);
	GetDlgItem(IDC_SEND)->EnableWindow(TRUE);
    GetDlgItem(IDC_PORT)->EnableWindow( TRUE );
}

void CUDPTSTDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	char szSend[1500];
    m_nSendNum++;
	sprintf(szSend,"%010d",m_nSendNum);
	int iSend= m_sockSend.SendTo(szSend, 10, m_rp, m_remoteIP, 0);

	TRACE("sent %d byte\n",iSend);
	m_sSendStr=szSend;
	UpdateData(FALSE);
	
	CDialog::OnTimer(nIDEvent);
}

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

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



void CUDPTSTDlg::OnCreat() 
{
	// TODO: Add your control notification handler code here

    UpdateData( TRUE );
    m_sockSend.SetParent( this );

    m_sockSend.Create( m_lp, SOCK_DGRAM );
	m_sockSend.Bind( m_lp, NULL );
	GetDlgItem(IDCREAT)->EnableWindow( FALSE);
	GetDlgItem(IDCLOSE)->EnableWindow( TRUE );
	GetDlgItem(IDC_SEND )->EnableWindow(TRUE);
	GetDlgItem(IDC_MSEND )->EnableWindow(TRUE);

	UpdateData(FALSE);

}


void CUDPTSTDlg::OnMsend() 
{
	int nLen;
	char szSend[1500];
	int nSend;

	// TODO: Add your control notification handler code here
	UpdateData(TRUE);					//get data from diaglog window
   
   
	if( m_sSendStr.IsEmpty() )
	{
		nLen = m_sSendStr.GetLength();
	    sprintf(szSend,"%s",m_sSendStr );
	    nSend= m_sockSend.SendTo(szSend, nLen, m_rp, m_remoteIP, 0);
	}

	//clean up current message 
	m_sSendStr.Empty();
	UpdateData(FALSE);				// put data to diaglog window

}