/////////////////////////////////////////////////////////////////////////////////////////
// Miranda NG: the free IM client for Microsoft* Windows*
//
// Copyright (ñ) 2012-17 Miranda NG project,
// Copyright (c) 2000-09 Miranda ICQ/IM project,
// all portions of this codebase are copyrighted to the people
// listed in contributors.txt.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// you should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
// part of tabSRMM messaging plugin for Miranda.
//
// (C) 2005-2010 by silvercircle _at_ gmail _dot_ com and contributors
//
// Implements the richedit-based message history display for the group
// chat window.

#include "stdafx.h"

/*
 * The code for streaming the text is to a large extent copied from
 * the srmm module and then modified to fit the chat module.
 */

static char *szDivider = "\\strike----------------------------------------------------------------------------\\strike0";

/*
 * ieview MUC support - mostly from scriver
 */

/*

static char* u2a(const wchar_t* src, int codepage)
{
	int cbLen = WideCharToMultiByte(codepage, 0, src, -1, nullptr, 0, nullptr, nullptr);
	char* result = (char*)mir_alloc(cbLen + 1);
	if (result == nullptr)
		return nullptr;

	WideCharToMultiByte(codepage, 0, src, -1, result, cbLen, nullptr, nullptr);
	result[cbLen] = 0;
	return result;
}

static char* t2acp(const wchar_t* src, int codepage)
{
	return u2a(src, codepage);
}

static wchar_t *a2tcp(const char *text, int cp)
{
	if (text != nullptr) {
		int cbLen = MultiByteToWideChar(cp, 0, text, -1, nullptr, 0);
		wchar_t* result = (wchar_t*)mir_alloc(sizeof(wchar_t)*(cbLen + 1));
		if (result == nullptr)
			return nullptr;
		MultiByteToWideChar(cp, 0, text, -1, result, cbLen);
		return result;
	}
	return nullptr;
}

static int Log_AppendIEView(LOGSTREAMDATA* streamData, BOOL simpleMode, wchar_t **buffer, int *cbBufferEnd, int *cbBufferAlloced, const wchar_t *fmt, ...)
{
	va_list va;
	int lineLen, textCharsCount = 0;
	wchar_t* line = (wchar_t*)_alloca(8001 * sizeof(wchar_t));
	wchar_t* d;
	MODULEINFO *mi = pci->MM_FindModule(streamData->si->pszModule);

	va_start(va, fmt);
	lineLen = mir_vsnwprintf(line, 8000, fmt, va);
	if (lineLen < 0)
		return 0;
	line[lineLen] = 0;
	va_end(va);
	lineLen = lineLen * 9 + 8;
	if (*cbBufferEnd + lineLen > *cbBufferAlloced) {
		cbBufferAlloced[0] += (lineLen + 1024 - lineLen % 1024);
		*buffer = (wchar_t*)mir_realloc(*buffer, *cbBufferAlloced * sizeof(wchar_t));
	}

	d = *buffer + *cbBufferEnd;

	for (; *line; line++, textCharsCount++) {
		if (*line == '%' && !simpleMode) {
			wchar_t szTemp[200];

			szTemp[0] = '\0';
			switch (*++line) {
			case '\0':
			case '%':
				*d++ = '%';
				break;

			case 'c':
			case 'f':
				if (!g_Settings.bStripFormat && !streamData->bStripFormat) {
					if (line[1] != '\0' && line[2] != '\0') {
						wchar_t szTemp3[3], c = *line;
						int col;
						szTemp3[0] = line[1];
						szTemp3[1] = line[2];
						szTemp3[2] = '\0';
						col = _wtoi(szTemp3);
						mir_snwprintf(szTemp, L"%%%c#%02X%02X%02X", c, GetRValue(mi->crColors[col]), GetGValue(mi->crColors[col]), GetBValue(mi->crColors[col]));
					}
				}
				line += 2;
				break;
			case 'C':
			case 'F':
				if (!g_Settings.bStripFormat && !streamData->bStripFormat) {
					mir_snwprintf(szTemp, L"%%%c", *line);
				}
				break;
			case 'b':
			case 'u':
			case 'i':
			case 'B':
			case 'U':
			case 'I':
			case 'r':
				if (!streamData->bStripFormat) {
					mir_snwprintf(szTemp, L"%%%c", *line);
				}
				break;
			}

			if (szTemp[0]) {
				size_t iLen = mir_wstrlen(szTemp);
				memcpy(d, szTemp, iLen * sizeof(wchar_t));
				d += iLen;
			}
		}
		else if (*line == '%') {
			*d++ = '%';
			*d++ = (char)*line;
		}
		else {
			*d++ = (wchar_t)*line;
		}
	}
	*d = '\0';
	*cbBufferEnd = (int)(d - *buffer);
	return textCharsCount;
}

static void AddEventTextToBufferIEView(wchar_t **buffer, int *bufferEnd, int *bufferAlloced, LOGSTREAMDATA *streamData)
{
	if (streamData->lin->ptszText)
		Log_AppendIEView(streamData, FALSE, str, L": %s", streamData->lin->ptszText);
}

static void AddEventToBufferIEView(wchar_t **buffer, int *bufferEnd, int *bufferAlloced, LOGSTREAMDATA *streamData, wchar_t *pszNick)
{

	if (streamData && streamData->lin) {
		switch (streamData->lin->iType) {
		case GC_EVENT_MESSAGE:
			if (streamData->lin->ptszText) {
				wchar_t *ptszTemp = nullptr;
				wchar_t *ptszText = streamData->lin->ptszText;
				if (streamData->dat->codePage != CP_ACP) {
					char *aText = t2acp(streamData->lin->ptszText, CP_ACP);
					ptszText = ptszTemp = a2tcp(aText, streamData->dat->codePage);
					mir_free(aText);
				}
				Log_AppendIEView(streamData, FALSE, str, L"%s", ptszText);
				mir_free(ptszTemp);
			}
			break;
		case GC_EVENT_ACTION:
			if (pszNick && streamData->lin->ptszText) {
				Log_AppendIEView(streamData, TRUE, str, L"%s ", streamData->lin->ptszNick);
				Log_AppendIEView(streamData, FALSE, str, L"%s", streamData->lin->ptszText);
			}
			break;
		case GC_EVENT_JOIN:
			if (pszNick) {
				if (!streamData->lin->bIsMe)
					Log_AppendIEView(streamData, TRUE, str, TranslateT("%s has joined"), pszNick);
				else
					Log_AppendIEView(streamData, TRUE, str, TranslateT("You have joined %s"), streamData->si->ptszName);
			}
			break;
		case GC_EVENT_PART:
			if (pszNick)
				Log_AppendIEView(streamData, TRUE, str, TranslateT("%s has left"), pszNick);
			AddEventTextToBufferIEView(str, streamData);
			break;
		case GC_EVENT_QUIT:
			if (pszNick)
				Log_AppendIEView(streamData, TRUE, str, TranslateT("%s has disconnected"), pszNick);
			AddEventTextToBufferIEView(str, streamData);
			break;
		case GC_EVENT_NICK:
			if (pszNick && streamData->lin->ptszText) {
				if (!streamData->lin->bIsMe)
					Log_AppendIEView(streamData, TRUE, str, TranslateT("%s is now known as %s"), pszNick, streamData->lin->ptszText);
				else
					Log_AppendIEView(streamData, TRUE, str, TranslateT("You are now known as %s"), streamData->lin->ptszText);
			}
			break;
		case GC_EVENT_KICK:
			if (pszNick && streamData->lin->ptszStatus)
				Log_AppendIEView(streamData, TRUE, str, TranslateT("%s kicked %s"), streamData->lin->ptszStatus, streamData->lin->ptszNick);
			AddEventTextToBufferIEView(str, streamData);
			break;
		case GC_EVENT_NOTICE:
			if (pszNick && streamData->lin->ptszText) {
				Log_AppendIEView(streamData, TRUE, str, TranslateT("Notice from %s"), pszNick);
				AddEventTextToBufferIEView(str, streamData);
			}
			break;
		case GC_EVENT_TOPIC:
			if (streamData->lin->ptszText)
				Log_AppendIEView(streamData, FALSE, str, TranslateT("The topic is '%s%s'"), streamData->lin->ptszText, L"%r");
			if (pszNick)
				Log_AppendIEView(streamData, TRUE, str,
				streamData->lin->ptszUserInfo ? TranslateT(" (set by %s on %s)") : TranslateT(" (set by %s)"),
				pszNick, streamData->lin->ptszUserInfo);
			break;
		case GC_EVENT_INFORMATION:
			if (streamData->lin->ptszText)
				Log_AppendIEView(streamData, FALSE, str, (streamData->lin->bIsMe) ? L"--> %s" : L"%s", streamData->lin->ptszText);
			break;
		case GC_EVENT_ADDSTATUS:
			if (pszNick && streamData->lin->ptszText && streamData->lin->ptszStatus)
				Log_AppendIEView(streamData, TRUE, str, TranslateT("%s enables '%s' status for %s"), streamData->lin->ptszText, streamData->lin->ptszStatus, streamData->lin->ptszNick);
			break;
		case GC_EVENT_REMOVESTATUS:
			if (pszNick && streamData->lin->ptszText && streamData->lin->ptszStatus)
				Log_AppendIEView(streamData, TRUE, str, TranslateT("%s disables '%s' status for %s"), streamData->lin->ptszText, streamData->lin->ptszStatus, streamData->lin->ptszNick);
			break;
		}
	}
}

static void LogEventIEView(LOGSTREAMDATA *streamData, wchar_t *ptszNick)
{
	wchar_t *buffer = nullptr;
	int bufferEnd = 0;
	int bufferAlloced = 0;
	IEVIEWEVENTDATA ied;
	IEVIEWEVENT event;
	memset(&event, 0, sizeof(event));
	event.cbSize = sizeof(event);
	event.dwFlags = 0;
	event.hwnd = streamData->dat->m_hwndIEView ? streamData->dat->m_hwndIEView : streamData->dat->m_hwndHPP;
	event.hContact = streamData->dat->m_hContact;
	event.codepage = streamData->dat->codePage;
	event.pszProto = streamData->si->pszModule;
	event.iType = IEE_LOG_MEM_EVENTS;
	event.eventData = &ied;
	event.count = 1;

	memset(&ied, 0, sizeof(ied));
	AddEventToBufferIEView(str, streamData, ptszNick);
	ied.ptszNick = ptszNick;
	ied.ptszText = buffer;
	ied.time = streamData->lin->time;
	ied.bIsMe = streamData->lin->bIsMe;

	switch (streamData->lin->iType) {
	case GC_EVENT_MESSAGE:
		ied.iType = IEED_GC_EVENT_MESSAGE;
		ied.dwData = IEEDD_GC_SHOW_NICK;
		break;
	case GC_EVENT_ACTION:
		ied.iType = IEED_GC_EVENT_ACTION;
		break;
	case GC_EVENT_JOIN:
		ied.iType = IEED_GC_EVENT_JOIN;
		break;
	case GC_EVENT_PART:
		ied.iType = IEED_GC_EVENT_PART;
		break;
	case GC_EVENT_QUIT:
		ied.iType = IEED_GC_EVENT_QUIT;
		break;
	case GC_EVENT_NICK:
		ied.iType = IEED_GC_EVENT_NICK;
		break;
	case GC_EVENT_KICK:
		ied.iType = IEED_GC_EVENT_KICK;
		break;
	case GC_EVENT_NOTICE:
		ied.iType = IEED_GC_EVENT_NOTICE;
		break;
	case GC_EVENT_TOPIC:
		ied.iType = IEED_GC_EVENT_TOPIC;
		break;
	case GC_EVENT_INFORMATION:
		ied.iType = IEED_GC_EVENT_INFORMATION;
		break;
	case GC_EVENT_ADDSTATUS:
		ied.iType = IEED_GC_EVENT_ADDSTATUS;
		break;
	case GC_EVENT_REMOVESTATUS:
		ied.iType = IEED_GC_EVENT_REMOVESTATUS;
		break;
	}
	ied.dwData |= g_Settings.bShowTime ? IEEDD_GC_SHOW_TIME : 0;
	ied.dwData |= IEEDD_GC_SHOW_ICON;
	ied.dwFlags = IEEDF_UNICODE_TEXT | IEEDF_UNICODE_NICK | IEEDF_UNICODE_TEXT2;
	ied.next = nullptr;
	CallService(streamData->dat->m_hwndIEView ? MS_IEVIEW_EVENT : MS_HPP_EG_EVENT, 0, (LPARAM)&event);
	mir_free(buffer);
}

*/

static int EventToIndex(LOGINFO * lin)
{
	switch (lin->iType) {
	case GC_EVENT_MESSAGE:
		if (lin->bIsMe)
			return 10;
		else
			return 9;

	case GC_EVENT_JOIN:
		return 3;
	case GC_EVENT_PART:
		return 4;
	case GC_EVENT_QUIT:
		return 5;
	case GC_EVENT_NICK:
		return 7;
	case GC_EVENT_KICK:
		return 6;
	case GC_EVENT_NOTICE:
		return 8;
	case GC_EVENT_TOPIC:
		return 11;
	case GC_EVENT_INFORMATION:
		return 12;
	case GC_EVENT_ADDSTATUS:
		return 13;
	case GC_EVENT_REMOVESTATUS:
		return 14;
	case GC_EVENT_ACTION:
		return 15;
	}
	return 0;
}

static BYTE EventToSymbol(LOGINFO *lin)
{
	switch (lin->iType) {
	case GC_EVENT_MESSAGE:
		return (lin->bIsMe) ? 0x37 : 0x38;
	case GC_EVENT_JOIN:
		return 0x34;
	case GC_EVENT_PART:
		return 0x33;
	case GC_EVENT_QUIT:
		return 0x39;
	case GC_EVENT_NICK:
		return 0x71;
	case GC_EVENT_KICK:
		return 0x72;
	case GC_EVENT_NOTICE:
		return 0x28;
	case GC_EVENT_INFORMATION:
		return 0x69;
	case GC_EVENT_ADDSTATUS:
		return 0x35;
	case GC_EVENT_REMOVESTATUS:
		return 0x36;
	case GC_EVENT_ACTION:
		return 0x60;
	}
	return 0x73;
}

static int EventToIcon(LOGINFO * lin)
{
	switch (lin->iType) {
	case GC_EVENT_MESSAGE:
		if (lin->bIsMe)
			return ICON_MESSAGEOUT;
		else
			return ICON_MESSAGE;

	case GC_EVENT_JOIN:
		return ICON_JOIN;
	case GC_EVENT_PART:
		return ICON_PART;
	case GC_EVENT_QUIT:
		return ICON_QUIT;
	case GC_EVENT_NICK:
		return ICON_NICK;
	case GC_EVENT_KICK:
		return ICON_KICK;
	case GC_EVENT_NOTICE:
		return ICON_NOTICE;
	case GC_EVENT_TOPIC:
		return ICON_TOPIC;
	case GC_EVENT_INFORMATION:
		return ICON_INFO;
	case GC_EVENT_ADDSTATUS:
		return ICON_ADDSTATUS;
	case GC_EVENT_REMOVESTATUS:
		return ICON_REMSTATUS;
	case GC_EVENT_ACTION:
		return ICON_ACTION;
	}
	return 0;
}

static void Log_AppendRTF(LOGSTREAMDATA *streamData, BOOL simpleMode, CMStringA &str, const wchar_t *fmt, ...)
{
	int textCharsCount = 0;
	wchar_t *line = (wchar_t*)_alloca(8001 * sizeof(wchar_t));

	va_list va;
	va_start(va, fmt);
	int lineLen = mir_vsnwprintf(line, 8000, fmt, va);
	if (lineLen < 0)
		lineLen = 8000;
	line[lineLen] = 0;
	va_end(va);

	CMStringA res;

	for (; *line; line++, textCharsCount++) {
		if (*line == '\r' && line[1] == '\n') {
			res.Append("\\par ");
			line++;
		}
		else if (*line == '\n') {
			res.Append("\\line ");
		}
		else if (*line == '%' && !simpleMode) {
			char szTemp[200]; szTemp[0] = '\0';
			switch (*++line) {
			case '\0':
			case '%':
				res.AppendChar('%');
				break;

			case 'c':
			case 'f':
				if (g_Settings.bStripFormat || streamData->bStripFormat)
					line += 2;
				else if (line[1] != '\0' && line[2] != '\0') {
					wchar_t szTemp3[3], c = *line;
					int col;
					szTemp3[0] = line[1];
					szTemp3[1] = line[2];
					szTemp3[2] = '\0';
					line += 2;

					col = _wtoi(szTemp3);
					col += (OPTIONS_FONTCOUNT + 1);
					res.AppendFormat((c == 'c') ? "\\cf%u " : "\\highlight%u ", col);
				}
				break;
			case 'C':
			case 'F':
				if (!g_Settings.bStripFormat && !streamData->bStripFormat) {
					int j = streamData->lin->bIsHighlighted ? 16 : EventToIndex(streamData->lin);
					if (*line == 'C')
						res.AppendFormat("\\cf%u ", j + 1);
					else
						res.Append("\\highlight0 ");
				}
				break;
			case 'b':
			case 'u':
			case 'i':
				if (!streamData->bStripFormat)
					res.AppendFormat((*line == 'u') ? "\\%cl " : "\\%c ", *line);
				break;

			case 'B':
			case 'U':
			case 'I':
				if (!streamData->bStripFormat)
					res.AppendFormat((*line == 'U') ? "\\%cl0 " : "\\%c0 ", tolower(*line));
				break;

			case 'r':
				if (!streamData->bStripFormat) {
					int index = EventToIndex(streamData->lin);
					res.AppendFormat("%s ", pci->Log_SetStyle(index));
				}
				break;
			}
		}
		else if (*line == '\t' && !streamData->bStripFormat) {
			res.Append("\\tab ");
		}
		else if ((*line == '\\' || *line == '{' || *line == '}') && !streamData->bStripFormat) {
			res.AppendChar('\\');
			res.AppendChar(*line);
		}
		else if (*line > 0 && *line < 128) {
			res.AppendChar((char)*line);
		}
		else res.AppendFormat("\\u%u ?", (WORD)* line);
	}

	str += res;
}

static void AddEventToBuffer(CMStringA &str, LOGSTREAMDATA *streamData)
{
	wchar_t szTemp[512], szTemp2[512];
	wchar_t* pszNick = nullptr;

	if (streamData == nullptr)
		return;

	if (streamData->lin == nullptr)
		return;

	if (streamData->lin->ptszNick) {
		if (g_Settings.bLogLimitNames && mir_wstrlen(streamData->lin->ptszNick) > 20) {
			wcsncpy_s(szTemp, 20, streamData->lin->ptszNick, _TRUNCATE);
			wcsncpy_s(szTemp + 20, 4, L"...", _TRUNCATE);
		}
		else wcsncpy_s(szTemp, streamData->lin->ptszNick, _TRUNCATE);

		if (g_Settings.bClickableNicks)
			mir_snwprintf(szTemp2, L"~~++#%s#++~~", szTemp);
		else
			wcsncpy_s(szTemp2, szTemp, _TRUNCATE);

		if (streamData->lin->ptszUserInfo && streamData->lin->iType != GC_EVENT_TOPIC)
			mir_snwprintf(szTemp, L"%s (%s)", szTemp2, streamData->lin->ptszUserInfo);
		else
			wcsncpy_s(szTemp, szTemp2, _TRUNCATE);
		pszNick = szTemp;
	}

	switch (streamData->lin->iType) {
	case GC_EVENT_MESSAGE:
		if (streamData->lin->ptszText)
			Log_AppendRTF(streamData, FALSE, str, L"%s", streamData->lin->ptszText);
		break;
	case GC_EVENT_ACTION:
		if (streamData->lin->ptszNick && streamData->lin->ptszText) {
			Log_AppendRTF(streamData, TRUE, str, L"%s ", streamData->lin->ptszNick);
			Log_AppendRTF(streamData, FALSE, str, L"%s", streamData->lin->ptszText);
		}
		break;
	case GC_EVENT_JOIN:
		if (pszNick) {
			if (!streamData->lin->bIsMe)
				/* replace nick of a newcomer with a link */
				Log_AppendRTF(streamData, TRUE, str, TranslateT("%s has joined"), pszNick);
			else
				Log_AppendRTF(streamData, TRUE, str, TranslateT("You have joined %s"), streamData->si->ptszName);
		}
		break;
	case GC_EVENT_PART:
		if (pszNick)
			Log_AppendRTF(streamData, TRUE, str, TranslateT("%s has left"), pszNick);
		if (streamData->lin->ptszText)
			Log_AppendRTF(streamData, FALSE, str, L": %s", streamData->lin->ptszText);
		break;
	case GC_EVENT_QUIT:
		if (pszNick)
			Log_AppendRTF(streamData, TRUE, str, TranslateT("%s has disconnected"), pszNick);
		if (streamData->lin->ptszText)
			Log_AppendRTF(streamData, FALSE, str, L": %s", streamData->lin->ptszText);
		break;
	case GC_EVENT_NICK:
		if (pszNick && streamData->lin->ptszText) {
			if (!streamData->lin->bIsMe)
				Log_AppendRTF(streamData, TRUE, str, TranslateT("%s is now known as %s"), pszNick, streamData->lin->ptszText);
			else
				Log_AppendRTF(streamData, TRUE, str, TranslateT("You are now known as %s"), streamData->lin->ptszText);
		}
		break;
	case GC_EVENT_KICK:
		if (pszNick && streamData->lin->ptszStatus)
			Log_AppendRTF(streamData, TRUE, str,
			TranslateT("%s kicked %s"), streamData->lin->ptszStatus, pszNick);

		if (streamData->lin->ptszText)
			Log_AppendRTF(streamData, FALSE, str, L": %s", streamData->lin->ptszText);
		break;
	case GC_EVENT_NOTICE:
		if (pszNick && streamData->lin->ptszText) {
			Log_AppendRTF(streamData, TRUE, str, TranslateT("Notice from %s: "), pszNick);
			Log_AppendRTF(streamData, FALSE, str, L"%s", streamData->lin->ptszText);
		}
		break;
	case GC_EVENT_TOPIC:
		if (streamData->lin->ptszText)
			Log_AppendRTF(streamData, FALSE, str, TranslateT("The topic is '%s%s'"), streamData->lin->ptszText, L"%r");
		if (pszNick)
			Log_AppendRTF(streamData, TRUE, str,
			(streamData->lin->ptszUserInfo) ? TranslateT(" (set by %s on %s)") :
			TranslateT(" (set by %s)"),
			pszNick, streamData->lin->ptszUserInfo);
		break;
	case GC_EVENT_INFORMATION:
		if (streamData->lin->ptszText)
			Log_AppendRTF(streamData, FALSE, str, (streamData->lin->bIsMe) ? L"--> %s" : L"%s", streamData->lin->ptszText);
		break;
	case GC_EVENT_ADDSTATUS:
		if (pszNick && streamData->lin->ptszText && streamData->lin->ptszStatus)
			Log_AppendRTF(streamData, TRUE, str,
			TranslateT("%s enables '%s' status for %s"),
			streamData->lin->ptszText, streamData->lin->ptszStatus, pszNick);
		break;
	case GC_EVENT_REMOVESTATUS:
		if (pszNick && streamData->lin->ptszText && streamData->lin->ptszStatus) {
			Log_AppendRTF(streamData, TRUE, str,
				TranslateT("%s disables '%s' status for %s"),
				streamData->lin->ptszText, streamData->lin->ptszStatus, pszNick);
		}
		break;
	}
}

char* Log_CreateRtfHeader(MODULEINFO *mi)
{
	// get the number of pixels per logical inch
	if (pci->logPixelSY == 0) {
		HDC hdc = GetDC(nullptr);
		pci->logPixelSY = GetDeviceCaps(hdc, LOGPIXELSY);
		pci->logPixelSX = GetDeviceCaps(hdc, LOGPIXELSX);
		ReleaseDC(nullptr, hdc);
	}

	// ### RTF HEADER

	// font table
	CMStringA str("{\\rtf1\\ansi\\deff0{\\fonttbl");
	for (int i = 0; i < OPTIONS_FONTCOUNT; i++)
		str.AppendFormat("{\\f%u\\fnil\\fcharset%u%S;}", i, pci->aFonts[i].lf.lfCharSet, pci->aFonts[i].lf.lfFaceName);

	// colour table
	str.Append("}{\\colortbl ;");

	for (int i = 0; i < OPTIONS_FONTCOUNT; i++)
		str.AppendFormat("\\red%u\\green%u\\blue%u;", GetRValue(pci->aFonts[i].color), GetGValue(pci->aFonts[i].color), GetBValue(pci->aFonts[i].color));

	for (int i = 0; i < mi->nColorCount; i++)
		str.AppendFormat("\\red%u\\green%u\\blue%u;", GetRValue(mi->crColors[i]), GetGValue(mi->crColors[i]), GetBValue(mi->crColors[i]));

	for (int i = 0; i < STATUSICONCOUNT; i++)
		str.AppendFormat("\\red%u\\green%u\\blue%u;", GetRValue(g_Settings.nickColors[i]), GetGValue(g_Settings.nickColors[i]), GetBValue(g_Settings.nickColors[i]));

	// new paragraph
	str.AppendFormat("}\\pard\\sl%d", 1000);

	// set tabs and indents
	int iIndent = 0;

	if (g_Settings.bLogSymbols) {
		wchar_t szString[2];
		LOGFONT lf;

		szString[1] = 0;
		szString[0] = 0x28;
		pci->LoadMsgDlgFont(17, &lf, nullptr);
		HFONT hFont = CreateFontIndirect(&lf);
		int iText = Chat_GetTextPixelSize(szString, hFont, true) + 3;
		DeleteObject(hFont);
		iIndent += (iText * 1440) / pci->logPixelSX;
		str.AppendFormat("\\tx%u", iIndent);
	}
	else if (g_Settings.dwIconFlags) {
		iIndent += ((g_Settings.bScaleIcons ? 14 : 20) * 1440) / pci->logPixelSX;
		str.AppendFormat("\\tx%u", iIndent);
	}
	if (g_Settings.bShowTime) {
		int iSize = (g_Settings.LogTextIndent * 1440) / pci->logPixelSX;
		str.AppendFormat("\\tx%u", iIndent + iSize);
		if (g_Settings.bLogIndentEnabled)
			iIndent += iSize;
	}
	str.AppendFormat("\\fi-%u\\li%u", iIndent, iIndent);

	return str.Detach();
}

char* Log_CreateRTF(LOGSTREAMDATA *streamData)
{
	LOGINFO *lin = streamData->lin;
	MODULEINFO *mi = pci->MM_FindModule(streamData->si->pszModule);
	SESSION_INFO *si = streamData->si;

	// ### RTF HEADER

	if (0 == mi->pszHeader)
		mi->pszHeader = Log_CreateRtfHeader(mi);

	char *header = mi->pszHeader;
	streamData->crCount = mi->nColorCount;

	CMStringA str;
	if (header)
		str.Append(header);

	// ### RTF BODY (one iteration per event that should be streamed in)
	while (lin) {
		// filter
		if ((si->iType != GCW_CHATROOM && si->iType != GCW_PRIVMESS) || !si->pDlg->m_bFilterEnabled || (si->pDlg->m_iLogFilterFlags & lin->iType) != 0) {
			if (lin->next != nullptr)
				str.Append("\\par ");

			if (streamData->dat->m_dwFlags & MWF_DIVIDERWANTED || lin->dwFlags & MWF_DIVIDERWANTED) {
				static char szStyle_div[128] = "\0";
				if (szStyle_div[0] == 0)
					mir_snprintf(szStyle_div, "\\f%u\\cf%u\\ul0\\b%d\\i%d\\fs%u", 17, 18, 0, 0, 5);

				lin->dwFlags |= MWF_DIVIDERWANTED;
				if (lin->prev || !streamData->bRedraw)
					str.AppendFormat("\\qc\\sl-1\\highlight%d %s ---------------------------------------------------------------------------------------\\par ", 18, szStyle_div);
				streamData->dat->m_dwFlags &= ~MWF_DIVIDERWANTED;
			}
			// create new line, and set font and color
			str.AppendFormat("\\ql\\sl0%s ", pci->Log_SetStyle(0));
			str.AppendFormat("\\v~-+%p+-~\\v0 ", lin);

			// Insert icon
			if (g_Settings.bLogSymbols)                // use symbols
				str.AppendFormat("%s %c", pci->Log_SetStyle(17), EventToSymbol(lin));
			else if (g_Settings.dwIconFlags) {
				int iIndex = lin->bIsHighlighted ? ICON_HIGHLIGHT : EventToIcon(lin);
				str.Append("\\f0\\fs14");
				str.Append(pci->pLogIconBmpBits[iIndex]);
			}

			if (g_Settings.bTimeStampEventColour) {
				// colored timestamps
				static char szStyle[256];
				LOGFONT &F = pci->aFonts[0].lf;
				int iii;
				if (lin->ptszNick && lin->iType == GC_EVENT_MESSAGE) {
					iii = lin->bIsHighlighted ? 16 : (lin->bIsMe ? 2 : 1);
					mir_snprintf(szStyle, "\\f0\\cf%u\\ul0\\highlight0\\b%d\\i%d\\ul%d\\fs%u",
						iii + 1, F.lfWeight >= FW_BOLD ? 1 : 0, F.lfItalic, F.lfUnderline, 2 * abs(F.lfHeight) * 74 / pci->logPixelSY);
					str.Append(szStyle);
				}
				else {
					iii = lin->bIsHighlighted ? 16 : EventToIndex(lin);
					mir_snprintf(szStyle, "\\f0\\cf%u\\ul0\\highlight0\\b%d\\i%d\\ul%d\\fs%u",
						iii + 1, F.lfWeight >= FW_BOLD ? 1 : 0, F.lfItalic, F.lfUnderline, 2 * abs(F.lfHeight) * 74 / pci->logPixelSY);
					str.Append(szStyle);
				}
			}
			else str.Append(pci->Log_SetStyle(0));
			str.AppendChar(' ');

			// insert a TAB if necessary to put the timestamp in the right position
			if (g_Settings.dwIconFlags)
				str.Append("\\tab ");

			//insert timestamp
			if (g_Settings.bShowTime) {
				wchar_t szTimeStamp[30], szOldTimeStamp[30];

				wcsncpy_s(szTimeStamp, pci->MakeTimeStamp(g_Settings.pszTimeStamp, lin->time), _TRUNCATE);
				wcsncpy_s(szOldTimeStamp, pci->MakeTimeStamp(g_Settings.pszTimeStamp, si->LastTime), _TRUNCATE);
				if (!g_Settings.bShowTimeIfChanged || si->LastTime == 0 || mir_wstrcmp(szTimeStamp, szOldTimeStamp)) {
					si->LastTime = lin->time;
					Log_AppendRTF(streamData, TRUE, str, L"%s", szTimeStamp);
				}
				str.Append("\\tab ");
			}

			// Insert the nick
			if (lin->ptszNick && lin->iType == GC_EVENT_MESSAGE) {
				char pszIndicator[3] = "\0\0";
				int  crNickIndex = 0;

				if (g_Settings.bLogClassicIndicators || g_Settings.bColorizeNicksInLog)
					pszIndicator[0] = GetIndicator(si, lin->ptszNick, &crNickIndex);

				str.Append(pci->Log_SetStyle(lin->bIsMe ? 2 : 1));
				str.AppendChar(' ');

				if (g_Settings.bLogClassicIndicators)
					str.Append(pszIndicator);

				CMStringW pszTemp(lin->bIsMe ? g_Settings.pszOutgoingNick : g_Settings.pszIncomingNick);
				pszTemp.Replace(L"%n", L"%s");
				if (!lin->bIsMe) {
					if (g_Settings.bClickableNicks)
						pszTemp.Replace(L"%s", L"~~++#%s#++~~");

					if (g_Settings.bColorizeNicksInLog && pszIndicator[0])
						str.AppendFormat("\\cf%u ", OPTIONS_FONTCOUNT + streamData->crCount + crNickIndex);
				}

				if (g_Settings.bNewLineAfterNames)
					pszTemp.AppendChar('\n');

				Log_AppendRTF(streamData, TRUE, str, pszTemp, lin->ptszNick);
				str.AppendChar(' ');
			}

			// Insert the message
			str.Append(pci->Log_SetStyle(lin->bIsHighlighted ? 16 : EventToIndex(lin)));
			str.AppendChar(' ');

			streamData->lin = lin;
			AddEventToBuffer(str, streamData);
		}
		lin = lin->prev;
	}

	// ### RTF END
	if (streamData->bRedraw)
		str.Append("\\par}");
	else
		str.Append("}");
	return str.Detach();
}

void CChatRoomDlg::StreamInEvents(LOGINFO *lin, bool bRedraw)
{
	if (m_hwnd == 0 || lin == 0 || m_si == 0)
		return;

	LOGSTREAMDATA streamData;
	memset(&streamData, 0, sizeof(streamData));
	streamData.hwnd = m_log.GetHwnd();
	streamData.si = m_si;
	streamData.lin = lin;
	streamData.bStripFormat = FALSE;
	streamData.dat = this;

	if (!bRedraw && (m_si->iType == GCW_CHATROOM || m_si->iType == GCW_PRIVMESS) && m_bFilterEnabled && (m_iLogFilterFlags & lin->iType) == 0)
		return;

	bool bFlag = false, fDoReplace;

	EDITSTREAM stream = {};
	stream.pfnCallback = Srmm_LogStreamCallback;
	stream.dwCookie = (DWORD_PTR)& streamData;

	SCROLLINFO scroll = {};
	scroll.cbSize = sizeof(SCROLLINFO);
	scroll.fMask = SIF_RANGE | SIF_POS | SIF_PAGE;
	GetScrollInfo(m_log.GetHwnd(), SB_VERT, &scroll);

	POINT point = { 0 };
	m_log.SendMsg(EM_GETSCROLLPOS, 0, (LPARAM)&point);

	// do not scroll to bottom if there is a selection
	CHARRANGE oldsel, sel, newsel;
	m_log.SendMsg(EM_EXGETSEL, 0, (LPARAM)&oldsel);
	if (oldsel.cpMax != oldsel.cpMin)
		m_log.SendMsg(WM_SETREDRAW, FALSE, 0);

	// set the insertion point at the bottom
	sel.cpMin = sel.cpMax = m_log.GetRichTextLength();
	m_log.SendMsg(EM_EXSETSEL, 0, (LPARAM)&sel);

	// fix for the indent... must be a M$ bug
	if (sel.cpMax == 0)
		bRedraw = TRUE;

	// should the event(s) be appended to the current log
	WPARAM wp = bRedraw ? SF_RTF : SFF_SELECTION | SF_RTF;

	// get the number of pixels per logical inch
	if (bRedraw) {
		HDC hdc = GetDC(nullptr);
		pci->logPixelSY = GetDeviceCaps(hdc, LOGPIXELSY);
		pci->logPixelSX = GetDeviceCaps(hdc, LOGPIXELSX);
		ReleaseDC(nullptr, hdc);
		m_log.SendMsg(WM_SETREDRAW, FALSE, 0);
		bFlag = true;
	}

	// stream in the event(s)
	streamData.lin = lin;
	streamData.bRedraw = bRedraw;
	m_log.SendMsg(EM_STREAMIN, wp, (LPARAM)&stream);

	// for new added events, only replace in message or action events.
	// no need to replace smileys or math formulas elsewhere
	fDoReplace = (bRedraw || (lin->ptszText && (lin->iType == GC_EVENT_MESSAGE || lin->iType == GC_EVENT_ACTION)));

	// replace marked nicknames with hyperlinks to make the nicks clickable
	if (g_Settings.bClickableNicks) {
		FINDTEXTEX fi, fi2;
		fi.chrg.cpMin = bRedraw ? 0 : sel.cpMin;
		fi.chrg.cpMax = -1;
		fi.lpstrText = L"~~++#";

		while (m_log.SendMsg(EM_FINDTEXTEX, FR_DOWN, (LPARAM)&fi) > -1) {
			fi2.chrg.cpMin = fi.chrgText.cpMin;
			fi2.chrg.cpMax = -1;
			fi2.lpstrText = L"#++~~";

			if (m_log.SendMsg(EM_FINDTEXTEX, FR_DOWN, (LPARAM)&fi2) > -1) {
				m_log.SendMsg(EM_EXSETSEL, 0, (LPARAM)&fi.chrgText);
				m_log.SendMsg(EM_REPLACESEL, TRUE, (LPARAM)L"");

				fi2.chrgText.cpMin -= fi.chrgText.cpMax - fi.chrgText.cpMin;
				fi2.chrgText.cpMax -= fi.chrgText.cpMax - fi.chrgText.cpMin;
				m_log.SendMsg(EM_EXSETSEL, 0, (LPARAM)&fi2.chrgText);
				m_log.SendMsg(EM_REPLACESEL, TRUE, (LPARAM)L"");

				fi2.chrgText.cpMax = fi2.chrgText.cpMin;
				fi2.chrgText.cpMin = fi.chrgText.cpMin;
				m_log.SendMsg(EM_EXSETSEL, 0, (LPARAM)&fi2.chrgText);

				CHARFORMAT2 cf2;
				memset(&cf2, 0, sizeof(CHARFORMAT2));
				cf2.cbSize = sizeof(cf2);
				cf2.dwMask = CFM_PROTECTED;
				cf2.dwEffects = CFE_PROTECTED;
				m_log.SendMsg(EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM)&cf2);
			}
			fi.chrg.cpMin = fi.chrgText.cpMax;
		}
		m_log.SendMsg(EM_SETSEL, -1, -1);
	}

	// run smileyadd
	if (PluginConfig.g_SmileyAddAvail && fDoReplace) {
		newsel.cpMax = -1;
		newsel.cpMin = sel.cpMin;
		if (newsel.cpMin < 0)
			newsel.cpMin = 0;

		SMADD_RICHEDIT3 sm = { sizeof(sm) };
		sm.hwndRichEditControl = m_log.GetHwnd();
		sm.Protocolname = m_si->pszModule;
		sm.rangeToReplace = bRedraw ? nullptr : &newsel;
		sm.disableRedraw = TRUE;
		sm.hContact = m_si->hContact;
		CallService(MS_SMILEYADD_REPLACESMILEYS, 0, (LPARAM)&sm);
	}

	// trim the message log to the number of most recent events
	// this uses hidden marks in the rich text to find the events which should be deleted
	if (m_si->bTrimmed) {
		wchar_t szPattern[50];
		mir_snwprintf(szPattern, L"~-+%p+-~", m_si->pLogEnd);

		FINDTEXTEX fi;
		fi.lpstrText = szPattern;
		fi.chrg.cpMin = 0;
		fi.chrg.cpMax = -1;
		if (m_log.SendMsg(EM_FINDTEXTEX, FR_DOWN, (LPARAM)&fi) != 0) {
			CHARRANGE rng;
			rng.cpMin = 0;
			rng.cpMax = 20;
			m_log.SendMsg(EM_SETSEL, 0, fi.chrgText.cpMax + 1);
			m_log.SendMsg(EM_REPLACESEL, TRUE, (LPARAM)L"");
		}
		m_si->bTrimmed = false;
	}

	// scroll log to bottom if the log was previously scrolled to bottom, else restore old position
	if ((bRedraw || (UINT)scroll.nPos >= (UINT)scroll.nMax - scroll.nPage - 5 || scroll.nMax - scroll.nMin - scroll.nPage < 50))
		ScrollToBottom();
	else
		m_log.SendMsg(EM_SETSCROLLPOS, 0, (LPARAM)&point);

	// do we need to restore the selection
	if (oldsel.cpMax != oldsel.cpMin) {
		m_log.SendMsg(EM_EXSETSEL, 0, (LPARAM)&oldsel);
		m_log.SendMsg(WM_SETREDRAW, TRUE, 0);
		InvalidateRect(m_log.GetHwnd(), nullptr, TRUE);
	}

	// need to invalidate the window
	if (bFlag) {
		sel.cpMin = sel.cpMax = m_log.GetRichTextLength();
		m_log.SendMsg(EM_EXSETSEL, 0, (LPARAM)&sel);
		m_log.SendMsg(WM_SETREDRAW, TRUE, 0);
		InvalidateRect(m_log.GetHwnd(), nullptr, TRUE);
	}
}