chatclientdlg.cpp

文件包含了很多VC实例

#include "stdafx.h"
#include <atlconv.h>
#include "ChatClient.h"
#include "ChatClientDlg.h"
#include "SocketManager.h"
#include ".\chatclientdlg.h"
#include <string>

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

const int SOCK_TCP	= 0;
const int SOCK_UDP  = 1;
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// 对话框数据
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CChatClientDlg 对话框



CChatClientDlg::CChatClientDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CChatClientDlg::IDD, pParent)
	, m_nStrPort(_T("5000"))
	, m_nSocketType(SOCK_TCP)

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

void CChatClientDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Text(pDX, IDC_EDITPORT, m_nStrPort);
	DDX_Control(pDX, IDC_SPINPORT, m_ctrlSpinPort);
	DDX_Control(pDX, IDC_IPADDRESSSVR, m_ctrlIPAddr);
	DDX_Control(pDX, IDC_EDITMSGRER, m_ctrlMsgRecord);
	DDX_Control(pDX, IDC_EDIT_MSG, m_ctrlMsg);

	DDX_Control(pDX, IDC_EDIT_USERNAME, m_strUserName);
}

BEGIN_MESSAGE_MAP(CChatClientDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDSEND, OnBnClickedSend)
	ON_BN_CLICKED(IDCONNECT, OnBnClickedConnect)
	ON_WM_DESTROY()
	ON_BN_CLICKED(IDDISCONNECT, OnBnClickedDisconnect)
	ON_BN_CLICKED(IDC_RADIOTCP, OnBnClickedRadiotcp)
	ON_BN_CLICKED(IDC_RADIOUDP, OnBnClickedRadioudp)
	ON_EN_KILLFOCUS(IDC_EDIT_USERNAME, OnEnKillfocusEditUsername)
	ON_BN_CLICKED(IDC_BUTTON_HELP, OnBnClickedButtonHelp)
END_MESSAGE_MAP()


// CChatClientDlg 消息处理程序

BOOL CChatClientDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 将\“关于...\”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	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);
		}
	}

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO：在此添加额外的初始化代码
	m_ctrlSpinPort.SetRange32( 2000, 6000); //默认变化范围为2000-6000
	GetDlgItem(IDCONNECT)->EnableWindow( TRUE );
	GetDlgItem(IDDISCONNECT)->EnableWindow( FALSE );
	GetDlgItem(IDSEND)->EnableWindow( FALSE );
	GetDlgItem(IDSTOP)->EnableWindow( TRUE );

	CString strLocal;
	m_SocketManager.GetLocalAddress( strLocal.GetBuffer(256), 256);
	strLocal.ReleaseBuffer();
	m_ctrlIPAddr.SetWindowText( strLocal );

	// Initialize socket manager
	m_SocketManager.SetMessageWindow( &m_ctrlMsgRecord);
	m_SocketManager.SetSmartAddressing( false );	// always send to server
	
	((CButton*)GetDlgItem(IDC_RADIOTCP))->SetCheck(BST_CHECKED);
	return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE
}

void CChatClientDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CChatClientDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		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;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CChatClientDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}

void CChatClientDlg::OnBnClickedSend()
{
	BYTE byBuffer[256] = { 0 };
	CString strText;
	CString strSpace = " 说： ";
	CString UserName;
	CString space=" ";
    
	// 更新数据
	UpdateData();

	//获得要发送的信息
	m_ctrlMsg.GetWindowText( strText );
	int nLen = strText.GetLength();//nLen=0;

	m_strUserName.GetWindowText(UserName);
	
	
	if (nLen > 0)
	{
		//在消息前加消息发送人身份标识
		TCHAR strHost[HOSTNAME_SIZE] = { 0 };
		if (false == CSocketComm::GetLocalName( strHost, sizeof(strHost)/sizeof(TCHAR)))
		{
			AfxMessageBox("获取消息发送人身份标识失败!");
			return;
		}
		//加上回车符号
		strText += _T("\r\n");
		nLen = strText.GetLength() + strlen(strHost)+ strSpace.GetLength() + UserName.GetLength()+2*space.GetLength()+1;
		USES_CONVERSION;
		strcpy((LPSTR)byBuffer, T2CA(strHost));
		strcat((LPSTR)byBuffer, T2CA(space));
		strcat((LPSTR)byBuffer, T2CA(UserName));
		strcat((LPSTR)byBuffer, T2CA(space));
		strcat((LPSTR)byBuffer, T2CA(strSpace));
		strcat((LPSTR)byBuffer, T2CA(strText));
		//发送出去
		m_SocketManager.WriteComm( byBuffer, nLen, INFINITE);
		m_ctrlMsg.SetWindowText("");
	}
}

void CChatClientDlg::OnBnClickedConnect()
{
	UpdateData();

	CString strServer;
	//获得服务器地址
	m_ctrlIPAddr.GetWindowText( strServer );
	bool bSuccess;
	//如果是TCP连接
	if (m_nSocketType == SOCK_TCP)
	{
		bSuccess = m_SocketManager.ConnectTo( strServer, m_nStrPort, AF_INET, SOCK_STREAM); // TCP
	}
	else
	{
		bSuccess = m_SocketManager.ConnectTo( strServer, m_nStrPort, AF_INET, SOCK_DGRAM); // UDP
	}

	//建立线程
	if (bSuccess && m_SocketManager.WatchComm())
	{
		GetDlgItem(IDCONNECT)->EnableWindow( TRUE );
		GetDlgItem(IDSTOP)->EnableWindow( TRUE );
		NextDlgCtrl();
		GetDlgItem(IDCONNECT)->EnableWindow( FALSE );
		GetDlgItem(IDC_RADIOTCP)->EnableWindow( FALSE );
		GetDlgItem(IDC_RADIOUDP)->EnableWindow( FALSE );
		GetDlgItem(IDDISCONNECT)->EnableWindow( TRUE );
		GetDlgItem(IDSEND)->EnableWindow( TRUE );
		CString strMsg;
	
		//如果是TCP协议
		if (m_nSocketType == SOCK_TCP)
		{
			strMsg = _T("连接建立在服务器: ") + strServer;
			strMsg += _T("上，端口为 ") + m_nStrPort + CString("\r\n");
		}
		else
		{
			SockAddrIn addrin;
			m_SocketManager.GetSockName( addrin );	// 获得目前的地址
			LONG  uAddr = addrin.GetIPAddr();
			BYTE* sAddr = (BYTE*) &uAddr;
			short nPort = ntohs( addrin.GetPort() );
			CString strAddr;
			// IP地址保存成网络形式
			strAddr.Format(_T("IP: %u.%u.%u.%u, Port: %d"),
						(UINT)(sAddr[0]), (UINT)(sAddr[1]),
						(UINT)(sAddr[2]), (UINT)(sAddr[3]), nPort);
			strMsg = _T("Socket created: ") + strAddr + CString("\r\n");
		}

		m_SocketManager.GetPeerName( m_SockPeer );
		m_ctrlMsgRecord.SetWindowText( strMsg );
	}
}

void CChatClientDlg::OnDestroy()
{
	m_SocketManager.StopComm();
	CDialog::OnDestroy();

}

void CChatClientDlg::OnBnClickedDisconnect()
{
	//断开连接
	m_SocketManager.StopComm();
	if (!(m_SocketManager.IsOpen()))
	{
		GetDlgItem(IDDISCONNECT)->EnableWindow( FALSE );
		PrevDlgCtrl();
		GetDlgItem(IDCONNECT)->EnableWindow( TRUE);
		GetDlgItem(IDSEND)->EnableWindow( FALSE );
		GetDlgItem(IDC_RADIOTCP)->EnableWindow( TRUE );
		GetDlgItem(IDC_RADIOUDP)->EnableWindow( TRUE );
	}
}

void CChatClientDlg::OnBnClickedRadiotcp()
{
	// TODO: 在此添加控件通知处理程序代码
	m_nSocketType = SOCK_TCP;
}

void CChatClientDlg::OnBnClickedRadioudp()
{
	// TODO: 在此添加控件通知处理程序代码
	m_nSocketType = SOCK_UDP;
}

BOOL CChatClientDlg::PreTranslateMessage(MSG* pMsg)
{
	if (pMsg->message == WM_KEYDOWN)
	{
		int nVirtKey = (int) pMsg->wParam;
		if (nVirtKey == VK_ESCAPE)
			return TRUE;
		if (nVirtKey == VK_RETURN && (GetFocus()->m_hWnd  == m_ctrlMsg.m_hWnd))
		{
				OnBnClickedSend();
			return TRUE;
		}
	}

	return CDialog::PreTranslateMessage(pMsg);
}

void CChatClientDlg::OnEnKillfocusEditUsername()
{
	// TODO: 在此添加控件通知处理程序代码
	UpdateData(TRUE);

}

void CChatClientDlg::OnBnClickedButtonHelp()
{
	// TODO: 在此添加控件通知处理程序代码
	CAboutDlg aboutdlg;
	aboutdlg.DoModal();

}