serverdlg.cpp

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// ServerDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Server.h"
#include "ServerDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CServerDlg dialog

CServerDlg::CServerDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CServerDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CServerDlg)
	m_strShow = _T("服务器启动……");
	m_strMsg = _T("欢迎……");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CServerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CServerDlg)
	DDX_Control(pDX, IDC_EDIT1, m_Show);
	DDX_Text(pDX, IDC_EDIT1, m_strShow);
	DDX_Text(pDX, IDC_EDIT2, m_strMsg);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CServerDlg, CDialog)
	//{{AFX_MSG_MAP(CServerDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_DESTROY()
	ON_MESSAGE(WM_SERVERMSG, OnServerMsg)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CServerDlg message handlers

BOOL CServerDlg::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
	WSADATA wsaData;	// WSADATA结构对象
	WORD wVersionRequested = MAKEWORD(2, 0);	// 指定Winsock版本为2.0
	WSAStartup(wVersionRequested, &wsaData);		// 启动Winsock
	m_hSocket = socket(AF_INET, SOCK_STREAM, 0);		// 创建流套接字
	m_saList.RemoveAll();	// 清空套接字列表
	WSAAsyncSelect(m_hSocket, 
				this->m_hWnd, 	// 接收消息的窗口为对话框
				WM_SERVERMSG, 	// 指定消息
				FD_ACCEPT | FD_READ | FD_WRITE | FD_CLOSE);	// 指定事件
	m_uPort = 8888;	// 设置端口号
	// 设置套接字地址结构对象
	m_addr.sin_family = AF_INET;
	m_addr.sin_addr.S_un.S_addr = INADDR_ANY;
	m_addr.sin_port = htons(m_uPort);
	bind(m_hSocket, (LPSOCKADDR)&m_addr, sizeof(m_addr));		// 绑定套接字
	listen(m_hSocket, 3);	// 进入监听状态	
	return TRUE;  

}

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

void CServerDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	WSAAsyncSelect(m_hSocket, this->m_hWnd, 0, 0);		// 取消异步选择模式
	WSACleanup();		// 清理Winsock
}

long CServerDlg::OnServerMsg(WPARAM wParam, LPARAM lParam) 
{
	SOCKET socket, s;
	int length,i,j;
	char buf[1024];
	int len;
	switch(lParam)
	{
	case FD_ACCEPT:
		socket = accept(m_hSocket, NULL, NULL);
		length = m_saList.GetCount();
		for(i=0; i<length; i++)
		{
			s = m_saList.GetAt(m_saList.FindIndex(i));
			buf[0] = NULL;
			strcat(buf, "一名游客进入聊天室");
			send(s, buf, strlen(buf), 0);
		}
		m_strShow += "\r\n";
		m_strShow += "一名游客进入聊天室";
		UpdateData(FALSE);		
		m_saList.AddHead(socket);
		return 0;		
	case FD_READ:
		length = m_saList.GetCount();
		for(i=0; i<length; i++)
		{
			s = m_saList.GetAt(m_saList.FindIndex(i));
			if(s == wParam)
			{
				len = recv(s, buf, 1024, 0);
				buf[len] = NULL;
				for(j=0; j<length; j++)
				{
					s = m_saList.GetAt(m_saList.FindIndex(j));
					if(s!=wParam)
					{
						send(s, buf, strlen(buf),0);
					}
				}
				m_strShow += "\r\n";
				m_strShow += buf;
				UpdateData(FALSE);
				return 0;
			}
		}
		return 0;		
	case FD_WRITE:
		return 0;		
	case FD_CLOSE:
		return 0;		
	default:
		m_strShow += "\r\n";
		UpdateData(FALSE);
		return 0;
	}
}

void CServerDlg::OnButton1() 
{
	UpdateData(TRUE);
	m_strShow += _T("\r\n");			// 回车、换行
	m_strShow += m_strMsg;				// 添加聊天内容
	int nCount = m_saList.GetCount();	// 获取套接字列表总数
	SOCKET s;
	for (int i=0; i<nCount; i++)
	{	// 向每个客户端发送聊天内容
		s = m_saList.GetAt(m_saList.FindIndex(i));
		send(s, m_strMsg.GetBuffer(0), m_strMsg.GetLength(), 0);
	}
	m_strMsg.Empty();
	UpdateData(FALSE);	// 更新显示
	m_Show.LineScroll(m_Show.GetLineCount());	// 跟踪滚动条的位置
}