chatterslistview.cpp

一个简易的聊天室程序

// ChattersListView.cpp : implementation file
//

#include "stdafx.h"
#include "ChatServer.h"
#include "ChattersListView.h"

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

void CALLBACK EXPORT TimerProc(
   HWND hWnd,      // handle of CWnd that called SetTimer
   UINT nMsg,      // WM_TIMER
   UINT nIDEvent,  // timer identification
   DWORD dwTime    // system time
);

BOOL bLoggedOn = FALSE;
HWND gListCtrl;
UINT iTimerEvent = 0;

#define NICK_WIDTH  3
#define JOIN_WIDTH  8
#define DURN_WIDTH  6
#define IPNO_WIDTH  3

/////////////////////////////////////////////////////////////////////////////
// CChattersListView

IMPLEMENT_DYNCREATE(CChattersListView, CListView)

CChattersListView::CChattersListView()
{
	iRowNo = 0;
	bLoggedOn = FALSE;
}

CChattersListView::~CChattersListView()
{
}


BEGIN_MESSAGE_MAP(CChattersListView, CListView)
	//{{AFX_MSG_MAP(CChattersListView)
	ON_WM_SIZE()
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CChattersListView drawing

void CChattersListView::OnDraw(CDC* pDC)
{
	CDocument* pDoc = GetDocument();
	// TODO: add draw code here
}

/////////////////////////////////////////////////////////////////////////////
// CChattersListView diagnostics

#ifdef _DEBUG
void CChattersListView::AssertValid() const
{
	CListView::AssertValid();
}

void CChattersListView::Dump(CDumpContext& dc) const
{
	CListView::Dump(dc);
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CChattersListView message handlers

BOOL CChattersListView::PreCreateWindow(CREATESTRUCT& cs) 
{
	cs.style |= LVS_REPORT;	
	return CListView::PreCreateWindow(cs);
}

void CChattersListView::OnSize(UINT nType, int cx, int cy) 
{
	CListView::OnSize(nType, cx, cy);
	
	if(GetSafeHwnd())
	{
		GetListCtrl().SetColumnWidth(0, cx / NICK_WIDTH);
		GetListCtrl().SetColumnWidth(1, cx / JOIN_WIDTH);
		GetListCtrl().SetColumnWidth(2, cx / DURN_WIDTH);
		GetListCtrl().SetColumnWidth(3, cx / IPNO_WIDTH);
	}
}

int CChattersListView::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CListView::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	LOGFONT lf;                        // Used to create the CFont.

    memset(&lf, 0, sizeof(LOGFONT));   // Clear out structure.
    lf.lfHeight = 16;                  // Request a 20-pixel-high font
    strcpy(lf.lfFaceName, "Verdana");    //    with face name "Arial".
    m_font.CreateFontIndirect(&lf);    // Create the font.
	SetFont(&m_font);		

	CWinApp* pApp = AfxGetApp();
	m_pImageList.Create(16, 16, ILC_COLOR8 | ILC_MASK,  9, 9);
	m_pImageList.Add(pApp->LoadIcon(IDI_CHATTER));
	GetListCtrl().SetImageList(&m_pImageList , LVSIL_SMALL);

	CRect rect;
	GetClientRect(&rect);

	GetListCtrl().InsertColumn(0, "Nickname"   , rect.right / NICK_WIDTH, -1);
	GetListCtrl().InsertColumn(1, "Joined"     , rect.right / JOIN_WIDTH, -1);
	GetListCtrl().InsertColumn(2, "Duration"   , rect.right / DURN_WIDTH, -1);
	GetListCtrl().InsertColumn(3, "IP Address" , rect.right / IPNO_WIDTH, -1);

	gListCtrl = GetListCtrl().m_hWnd;

	iTimerEvent = SetTimer(0 , 1000*60, (TIMERPROC)TimerProc );

	return 0;
}

void CALLBACK EXPORT TimerProc(
   HWND hWnd,      // handle of CWnd that called SetTimer
   UINT nMsg,      // WM_TIMER
   UINT nIDEvent,  // timer identification
   DWORD dwTime    // system time
)
{
	if(!bLoggedOn)
		return;

	for(int iItem = 0 ; iItem < ListView_GetItemCount(gListCtrl); iItem++)
	{
		LVITEM lvi;
		lvi.mask = LVIF_PARAM;
		lvi.iSubItem = 2;
		lvi.iItem = iItem;
		ListView_GetItem(gListCtrl , &lvi);
		long lStartSecs = (long)lvi.lParam;

	    time_t t;
		struct tm *ptm;
	    time(&t);
		ptm = localtime(&t);
		long lCurrentSecs , lActualSecs;
		lCurrentSecs = (ptm->tm_hour * 3600) + (ptm->tm_min * 60) + ptm->tm_sec;
		lActualSecs = lCurrentSecs - lStartSecs;
		int lHours , lMins , lSecs;

		lHours = lActualSecs / 3600;
		lMins = (lActualSecs - lHours * 3600) / 60;
		lSecs = lActualSecs - (lHours * 3600) - (lMins * 60);

		char sDuration[11];
		sprintf(sDuration, "%d Hr %d Min", lHours , lMins);
		
		ListView_SetItemText(gListCtrl, iItem , 2 , sDuration);
	}

}

BOOL CChattersListView::DestroyWindow() 
{
	KillTimer(iTimerEvent);	
	return CListView::DestroyWindow();
}

void CChattersListView::UpdateChatters(CString sNickName , CString sIPAddress, UINT iPort)
{
	bLoggedOn = TRUE;

	LVITEM lvi;
	lvi.mask = LVIF_TEXT | LVIF_IMAGE;
	lvi.iItem = iRowNo++;
	lvi.iSubItem = 0;
	lvi.iImage = 0;
	lvi.pszText = sNickName.GetBuffer(sNickName.GetLength());
	int iActualItem = GetListCtrl().InsertItem(&lvi);

    time_t t;
    struct tm *ptm;
    time(&t);
    ptm = localtime(&t);
	CString sDate;
	sDate.Format("%.19s", asctime(ptm));
	int lHours , lMins , lSecs;
	lHours = atoi(sDate.Mid(11,2));
	lMins =atoi(sDate.Mid(14,2));
	lSecs = atoi(sDate.Mid(17,2));
	CString sDisplayTime;
	sDisplayTime.Format("%d:%d" , lHours , lMins);

	lvi.mask = LVIF_TEXT;
	lvi.iItem = iActualItem;
	lvi.iSubItem = 1;
	lvi.pszText = sDisplayTime.GetBuffer(sDisplayTime.GetLength());
	GetListCtrl().SetItem(&lvi);

	lvi.mask = LVIF_TEXT | LVIF_PARAM;
	lvi.iSubItem = 2;
	long lStartSec;

	lStartSec = (lHours * 3600) + (lMins * 60) + lSecs;
	char sDuration[20];
	lstrcpy(sDuration, "");
	lvi.pszText = sDuration;
	lvi.lParam = (long)lStartSec;
	GetListCtrl().SetItem(&lvi);
	GetListCtrl().SetItemData(iActualItem , lStartSec);

	CString sIPPort;
	sIPPort.Format("%s:%d", sIPAddress , iPort);
	lvi.mask = LVIF_TEXT;
	lvi.iSubItem = 3;
	lvi.pszText = sIPPort.GetBuffer(sIPPort.GetLength());
	GetListCtrl().SetItem(&lvi);

}

void CChattersListView::DeleteChatter(CString sNickName)
{
	LVFINDINFO lvfi;
	lvfi.flags = LVFI_STRING;
	lvfi.psz = sNickName.GetBuffer(sNickName.GetLength());
	int nFoundAt = GetListCtrl().FindItem(&lvfi , -1);
	if(nFoundAt != -1)
	{
		GetListCtrl().DeleteItem(nFoundAt);
		GetListCtrl().RedrawItems(0, GetListCtrl().GetItemCount());
	}

}