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开发平台：
Visual C++

ChatControls.cpp：源码内容
							
#include "stdAfx.h"
#include "trfAgent.h"
#include "ChatControls.h"
IMPLEMENT_DYNCREATE(CChatRichEditCtrl, CRichEditCtrl)
CChatRichEditCtrl::CChatRichEditCtrl()
{
	m_hlogfile = INVALID_HANDLE_VALUE;
	
	m_guifont.CreateFont(
		12,                        // nHeight
		0,                         // nWidth
		0,                         // nEscapement
		0,                         // nOrientation
		FW_NORMAL,                 // nWeight
		FALSE,                     // bItalic
		FALSE,                     // bUnderline
		0,                         // cStrikeOut
		ANSI_CHARSET,              // nCharSet
		OUT_DEFAULT_PRECIS,        // nOutPrecision
		CLIP_DEFAULT_PRECIS,       // nClipPrecision
		DEFAULT_QUALITY,           // nQuality
		DEFAULT_PITCH | FF_SWISS,  // nPitchAndFamily
		_T("宋体"));              // lpszFacename
}
CChatRichEditCtrl::~CChatRichEditCtrl()
{
	m_guifont.DeleteObject();
	if(INVALID_HANDLE_VALUE != m_hlogfile)
	{
		::CloseHandle(m_hlogfile);
		m_hlogfile = INVALID_HANDLE_VALUE;
	}
}
BEGIN_MESSAGE_MAP(CChatRichEditCtrl, CRichEditCtrl)
	//{{AFX_MSG_MAP(CChatRichEditCtrl)
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
int CChatRichEditCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if(CRichEditCtrl::OnCreate(lpCreateStruct) == -1)	return -1;
	this->SetFont(&m_guifont);
	return 0;
}
BOOL CChatRichEditCtrl::Setlogfile(LPCSTR lpszLogfile)
{
	if(INVALID_HANDLE_VALUE != m_hlogfile)
	{
		::CloseHandle(m_hlogfile);
		m_hlogfile = INVALID_HANDLE_VALUE;
	}
	if(FileExists(lpszLogfile))
	{
		m_hlogfile = ::CreateFile(lpszLogfile, GENERIC_READ | GENERIC_WRITE, 
			FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
	}
	else
	{
		m_hlogfile = ::CreateFile(lpszLogfile, GENERIC_READ | GENERIC_WRITE, 
			FILE_SHARE_READ, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, NULL);
	}
	return (INVALID_HANDLE_VALUE != m_hlogfile);
}
void CChatRichEditCtrl::WriteLog(LPCSTR lpszloginfo, UINT uncount)
{
	if(m_hlogfile == INVALID_HANDLE_VALUE)	return ;
	DWORD dwriten = 0x0000;
	::SetFilePointer(m_hlogfile, 0, NULL, FILE_END);
	::WriteFile(m_hlogfile, lpszloginfo, uncount, &dwriten, NULL);
}
void CChatRichEditCtrl::AppendText(LPCSTR lpszToOrFrm, LPCSTR lpszUserName, LPCSTR lpszContents)
{
	CString strhead, strtime;
	CTime now = CTime::GetCurrentTime();
	
	strtime.Format(SYS_TIMEFORMAT, now.GetYear(), now.GetMonth(), now.GetDay(),
					now.GetHour(), now.GetMinute(), now.GetSecond());
	strhead.Format("%s > %s %s : ", strtime.GetBuffer(0), lpszToOrFrm, lpszUserName);
	
	//1
	long ltotalen = this->GetTextLength();
	this->HideSelection(TRUE, TRUE);
	this->SetSel(ltotalen, ltotalen);
	this->ReplaceSel(strhead.GetBuffer(0));
	//2
	CString strmsg;
	strmsg = lpszContents;
	strmsg += "n";
	ltotalen = this->GetTextLength();
	this->SetSel(ltotalen, ltotalen);
	this->ReplaceSel(strmsg.GetBuffer(0));
	//3
	ltotalen = this->GetTextLength();
	this->SetSel(ltotalen, ltotalen);
	this->HideSelection(FALSE, TRUE);
	this->SendMessage(EM_SCROLLCARET, 0, 0);
	//add log information.
	CString strloginfo = strhead + strmsg;
	this->WriteLog(strloginfo.GetBuffer(0), strloginfo.GetLength());
}
DWORD CChatRichEditCtrl::StreamOutCallback(DWORD dwCookie, 
										   LPBYTE pbBuff, 
										   LONG cb, LONG *pcb)
{
	   CFile* pFile = (CFile*)dwCookie;
	   
	   pFile->Write(pbBuff, cb);
	   *pcb = cb;
	   
	   return 0;
}
BOOL CChatRichEditCtrl::SaveToFile(LPCSTR lpszFilename, const BOOL bOverwrite)
{
	CFile pFile;
	CFileFind ffFinder;
	if(this->GetTextLength() == 0)	return FALSE;
	if(ffFinder.FindFile(lpszFilename) !=0)
	{
		if(!bOverwrite)
		{
			ffFinder.Close();
			return FALSE;
		}
	}
	ffFinder.Close();
	if(!pFile.Open(lpszFilename, CFile::modeWrite | CFile::modeCreate))	return FALSE;
	
	EDITSTREAM es;
	
	es.pfnCallback = StreamOutCallback;
	es.dwCookie = (DWORD)&pFile;
	this->SendMessage(EM_STREAMOUT, (WPARAM)SF_TEXT, (LPARAM)&es);
	pFile.Close();
	return TRUE;
}
//////////////////////////////////////////////////////////////////////////
IMPLEMENT_DYNCREATE(CChatInputEdit, CEdit)
CChatInputEdit::CChatInputEdit()
{
	// Initializes a CFont object with the specified characteristics.
	
	m_guifont.CreateFont(
		12,                        // nHeight
		0,                         // nWidth
		0,                         // nEscapement
		0,                         // nOrientation
		FW_NORMAL,                 // nWeight
		FALSE,                     // bItalic
		FALSE,                     // bUnderline
		0,                         // cStrikeOut
		ANSI_CHARSET,              // nCharSet
		OUT_DEFAULT_PRECIS,        // nOutPrecision
		CLIP_DEFAULT_PRECIS,       // nClipPrecision
		DEFAULT_QUALITY,           // nQuality
		DEFAULT_PITCH | FF_SWISS,  // nPitchAndFamily
		_T("宋体"));              // lpszFacename
}
CChatInputEdit::~CChatInputEdit()
{
	m_guifont.DeleteObject();
}
BEGIN_MESSAGE_MAP(CChatInputEdit, CEdit)
	
	//{{AFX_MSG_MAP(CChatInputEdit)
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
int CChatInputEdit::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if(CEdit::OnCreate(lpCreateStruct) == -1)
	{
		TRACE0("Failed to create CChatInputEdit window. n");
		return -1;
	}
	this->SetFont(&m_guifont);
	return 0;
}
BOOL CChatInputEdit::PreTranslateMessage(MSG* pMsg)
{
	if(pMsg->hwnd == this->GetSafeHwnd())
	{
		SHORT keystae = ::GetKeyState(VK_CONTROL);
		BOOL  bctrldown = ((keystae & 0x80000000) != 0);
		
		if(pMsg->message == WM_KEYDOWN)
		{
			if(bctrldown)
			{
				switch(pMsg->wParam)
				{
				case 'C':
					this->Copy();
					break;
					
				case 'X':
					this->Cut();
					break;
					
				case 'V':
					this->Paste();
					break;
				}
			}
			else
			{
				if(pMsg->wParam == VK_RETURN)
				{
					CWnd *parWnd = this->GetParent();
					ASSERT(NULL != parWnd);
					parWnd->SendMessage(UWM_CHARINPUTOVER, 0, 0);					
					return TRUE;
				}
			}
		}
	}
	return CEdit::PreTranslateMessage(pMsg);
}
//////////////////////////////////////////////////////////////////////////
CChatGfxOutBarCtrl::CChatGfxOutBarCtrl()
{
	this->m_nImageManCount = 0;
	this->m_nImageWomanCount = 0;
}
CChatGfxOutBarCtrl::~CChatGfxOutBarCtrl()
{
	this->m_imaSmall.DeleteImageList();
	this->m_imaSmall.Detach();
	this->m_imaLarge.DeleteImageList();
	this->m_imaLarge.Detach();
}
BEGIN_MESSAGE_MAP(CChatGfxOutBarCtrl, CGfxOutBarCtrl)
	//{{AFX_MSG_MAP(CChatGfxOutBarCtrl)
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
int CChatGfxOutBarCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if(CGfxOutBarCtrl::OnCreate(lpCreateStruct) == -1)
	{
		TRACE0("Failed to create GfxOutBarCtrl window. n");
		return -1;
	}
	//////////////////////////////////////////////////////////////////////////
	
	CBitmap	imglstbmp;
	
	//load large image list.
	//make "MAN" and "WOMAN" large imagelist.
	if(this->m_imaLarge.Create(32, 32, ILC_COLOR8 | TRUE, 80, 1))
	{
		imglstbmp.LoadBitmap(IDB_MAN32_HOT);
		this->m_imaLarge.Add(&imglstbmp, RGB(0, 128, 128));
		imglstbmp.Detach();
		
		imglstbmp.LoadBitmap(IDB_MAN32_DISABLE);
		this->m_imaLarge.Add(&imglstbmp, RGB(0, 128, 128));
		imglstbmp.Detach();
		if(this->m_nImageManCount == 0)
			this->m_nImageManCount = this->m_imaLarge.GetImageCount() / 2;
		imglstbmp.LoadBitmap(IDB_WOMAN32_DISABLE);
		this->m_imaLarge.Add(&imglstbmp, RGB(0, 128, 128));
		imglstbmp.Detach();
		imglstbmp.LoadBitmap(IDB_WOMAN32_DISABLE);
		this->m_imaLarge.Add(&imglstbmp, RGB(0, 128, 128));
		imglstbmp.Detach();
		if(this->m_nImageWomanCount == 0)
			this->m_nImageWomanCount = (this->m_imaLarge.GetImageCount() - 
									(2 * m_nImageManCount)) / 2;
	}
	//make "MAN" and "WOMAN" small imagelist.
	if(this->m_imaSmall.Create(16, 16, ILC_COLOR8 | TRUE, 40, 1))
	{
		imglstbmp.LoadBitmap(IDB_MAN16_HOT);
		this->m_imaSmall.Add(&imglstbmp, RGB(0, 128, 128));
		imglstbmp.Detach();
		
		imglstbmp.LoadBitmap(IDB_MAN16_DISABLE);
		this->m_imaSmall.Add(&imglstbmp, RGB(0, 128, 128));
		imglstbmp.Detach();
		if(this->m_nImageManCount == 0)
			this->m_nImageManCount = this->m_imaSmall.GetImageCount() / 2;
		
		imglstbmp.LoadBitmap(IDB_WOMAN16_DISABLE);
		this->m_imaSmall.Add(&imglstbmp, RGB(0, 128, 128));
		imglstbmp.Detach();
		
		imglstbmp.LoadBitmap(IDB_WOMAN16_DISABLE);
		this->m_imaSmall.Add(&imglstbmp, RGB(0, 128, 128));
		imglstbmp.Detach();
		if(this->m_nImageWomanCount == 0)
			this->m_nImageWomanCount = (this->m_imaSmall.GetImageCount() - 
									(2 * m_nImageManCount)) / 2;		
	}	
	this->SetImageList(&m_imaLarge, CGfxOutBarCtrl::fLargeIcon);
	this->SetImageList(&m_imaSmall, CGfxOutBarCtrl::fSmallIcon);
	
	this->SetAnimationTickCount(10);
	
	this->SetAnimSelHighlight(200);
	
	this->SetIfQueryRemove(true);
	this->AddFolder(_LoadString(IDS_CHATFRIENDSDIR).GetBuffer(0), 0);
	this->AddFolder(_LoadString(IDS_CHATGRPFRIENDSDIR).GetBuffer(0), 0);
	return 0;
}
BOOL CChatGfxOutBarCtrl::ExistsAgent(const int nFolderIndex, const int nAgentId, int &nItemIndex)
{
	if(nFolderIndex < 0 || nFolderIndex > this->GetFolderCount() - 1)	return FALSE;
	for(int i = 0; i < this->GetFolderItemCount(nFolderIndex); ++i)
	{
		DWORD dwdata = this->GetItemData(i);
		if(HIWORD(dwdata) == nAgentId)
		{
			nItemIndex = i;
			return TRUE;
		}
	}
	return FALSE;
}
BOOL CChatGfxOutBarCtrl::GetImageIndex(WORD wHeadportraitIndex, int &nNormalImageIndex, int &nDisableImageIndex)
{
	switch(HIBYTE(wHeadportraitIndex))
	{
	case 0:
		{
			nNormalImageIndex = LOBYTE(wHeadportraitIndex);
			nDisableImageIndex= nNormalImageIndex + this->m_nImageManCount;
		}
		break;
	case 1:
		{
			nNormalImageIndex = (2 * this->m_nImageManCount) + LOBYTE(wHeadportraitIndex);
			nDisableImageIndex= nNormalImageIndex + this->m_nImageWomanCount;
		}
		break;
	default:
		return FALSE;
	}
	return TRUE;
}

						