/*
    Variables Plugin for Miranda-IM (www.miranda-im.org)
    Copyright 2003-2006 P. Boon

    This program is mir_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
*/
#include "variables.h"
#include "contact.h"
#include <commctrl.h>
#include <m_clui.h>
#include <m_clc.h>

extern BOOL (WINAPI *pfnEnableThemeDialogTexture)(HANDLE, DWORD);

struct HELPDLGDATA
{
	VARHELPINFO *vhs;
	HWND hwndSubjectDlg;
	HWND hwndExtraTextDlg;
	HWND hwndInputDlg;
};

static INT_PTR CALLBACK inputDlgProc(HWND hwndDlg,UINT msg,WPARAM wParam,LPARAM lParam);

extern HINSTANCE hInst;

extern HCURSOR hCurSplitNS;
static WNDPROC OldSplitterProc;

static HWND hwndHelpDialog = NULL;

static HICON hHelpIcon = NULL;

static int defaultHelpDialogResize(HWND hwndDlg, LPARAM lParam, UTILRESIZECONTROL *urc) {

	switch(urc->wId) {
	case IDC_ABOUT:
	case IDC_ABOUTFRAME:
		return RD_ANCHORX_WIDTH|RD_ANCHORY_TOP;
	}

	return RD_ANCHORX_WIDTH|RD_ANCHORY_HEIGHT;
}

// dialog box for the %extratext% input
static INT_PTR CALLBACK extratextDlgProc(HWND hwndDlg,UINT msg,WPARAM wParam,LPARAM lParam) {

	switch(msg) {
	case WM_INITDIALOG:
		TranslateDialogDefault(hwndDlg);
		break;

	case VARM_SETEXTRATEXT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(GetDlgItem(hwndDlg, IDC_EXTRATEXT), WM_SETTEXT, wParam, lParam));
		return TRUE;

	case VARM_GETEXTRATEXTLENGTH:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(GetDlgItem(hwndDlg, IDC_EXTRATEXT), WM_GETTEXTLENGTH, wParam, lParam));
		return TRUE;

	case VARM_GETEXTRATEXT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(GetDlgItem(hwndDlg, IDC_EXTRATEXT), WM_GETTEXT, wParam, lParam));
		return TRUE;

	case WM_SIZE:
		if (!IsIconic( hwndDlg )) {
			UTILRESIZEDIALOG urd = { 0 };
			urd.cbSize = sizeof(urd);
			urd.hInstance = hInst;
			urd.hwndDlg = hwndDlg;
			urd.lpTemplate = MAKEINTRESOURCEA(IDD_EXTRATEXT_DIALOG);
			urd.pfnResizer = defaultHelpDialogResize;
			CallService(MS_UTILS_RESIZEDIALOG, 0, (LPARAM)&urd);

			SendMessage(hwndDlg, WM_MOVE, 0, 0);
		}
		break;

	case WM_COMMAND:
		switch (LOWORD(wParam)) {
		case IDC_EXTRATEXT:
			SendMessage(GetParent(hwndDlg), VARM_PARSE, 0, 0);
			break;
		}
		break;
	}

	return FALSE;
}

// dialog box for the %subject% selection
void ResetCList(HWND hwndDlg) {

	int i;

	if ((CallService(MS_CLUI_GETCAPS, 0, 0) & CLUIF_DISABLEGROUPS && !DBGetContactSettingByte(NULL, "CList", "UseGroups", SETTING_USEGROUPS_DEFAULT)) || !(GetWindowLongPtr(GetDlgItem(hwndDlg, IDC_CLIST), GWL_STYLE)&CLS_USEGROUPS))
		SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SETUSEGROUPS, (WPARAM) FALSE, 0);
	else
		SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SETUSEGROUPS, (WPARAM) TRUE, 0);
	SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SETHIDEEMPTYGROUPS, 1, 0);
	SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SETGREYOUTFLAGS, 0, 0);
	SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SETLEFTMARGIN, 2, 0);
	SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SETBKBITMAP, 0, (LPARAM) (HBITMAP) NULL);
	SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SETBKCOLOR, GetSysColor(COLOR_WINDOW), 0);
	SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SETINDENT, 10, 0);
	for (i = 0; i <= FONTID_MAX; i++)
		SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SETTEXTCOLOR, i, GetSysColor(COLOR_WINDOWTEXT));
}

static int clistDialogResize(HWND hwndDlg, LPARAM lParam, UTILRESIZECONTROL *urc) {

	switch(urc->wId) {
	case IDC_ABOUT:
	case IDC_ABOUTFRAME:
		return RD_ANCHORX_WIDTH|RD_ANCHORY_TOP;
	case IDC_NULL:
	case IDC_CONTACT:
		return RD_ANCHORX_LEFT|RD_ANCHORY_TOP;
	}

	return RD_ANCHORX_WIDTH|RD_ANCHORY_HEIGHT;
}

static INT_PTR CALLBACK clistDlgProc(HWND hwndDlg,UINT msg,WPARAM wParam,LPARAM lParam)
{
	switch(msg) {
	case WM_INITDIALOG:
		TranslateDialogDefault(hwndDlg);
		SetWindowLongPtr(GetDlgItem(hwndDlg, IDC_CLIST), GWL_STYLE, (GetWindowLongPtr(GetDlgItem(hwndDlg, IDC_CLIST), GWL_STYLE) | (CLS_SHOWHIDDEN) | (CLS_NOHIDEOFFLINE)) & ~CLS_CHECKBOXES & ~CLS_USEGROUPS );
		ResetCList(hwndDlg);
		CheckRadioButton(hwndDlg, IDC_NULL, IDC_CONTACT, IDC_NULL);
		EnableWindow(GetDlgItem(hwndDlg, IDC_CLIST), IsDlgButtonChecked(hwndDlg, IDC_CONTACT));
		break;

	case VARM_SETSUBJECT: {
		LPARAM res = 0;
		HANDLE hContact, hItem;

		hContact = (HANDLE)wParam;
		log_debugA("VARM_SETSUBJECT: %u", hContact);
		if (hContact == INVALID_HANDLE_VALUE) {
			TCHAR *tszContact = db_get_tsa(NULL, MODULENAME, SETTING_SUBJECT);
			log_debugA("VARM_SETSUBJECT: %s", tszContact);
			if (tszContact != NULL) {
				hContact = decodeContactFromString(tszContact);
				log_debugA("VARM_SETSUBJECT decoded: %u", hContact);
				mir_free(tszContact);
		}	}

		if ((hContact != INVALID_HANDLE_VALUE) && (hContact != NULL))
			hItem = (HANDLE)SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_FINDCONTACT, (WPARAM)hContact, 0);
		else
			hItem = NULL;

		if (hItem != NULL)
			res = (LPARAM)SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_SELECTITEM, (WPARAM)hItem, 0);

		CheckRadioButton(hwndDlg, IDC_NULL, IDC_CONTACT, hItem==NULL?IDC_NULL:IDC_CONTACT);
		EnableWindow(GetDlgItem(hwndDlg, IDC_CLIST), IsDlgButtonChecked(hwndDlg, IDC_CONTACT));
		SetFocus(GetDlgItem(hwndDlg, IDC_CLIST));
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, (LPARAM)res);
		return TRUE;
	}

	case VARM_GETSUBJECT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			(IsDlgButtonChecked(hwndDlg, IDC_CONTACT) ? SendDlgItemMessage(hwndDlg, IDC_CLIST, CLM_GETSELECTION, 0, 0) : 0));
		return TRUE;

	case WM_SIZE:
		if (!IsIconic( hwndDlg )) {
			UTILRESIZEDIALOG urd = { 0 };
			urd.cbSize = sizeof(urd);
			urd.hInstance = hInst;
			urd.hwndDlg = hwndDlg;
			urd.lParam = 0;
			/* ! uses ANSI version ! */
			urd.lpTemplate = MAKEINTRESOURCEA(IDD_CLIST_DIALOG);
			urd.pfnResizer = clistDialogResize;
			CallService(MS_UTILS_RESIZEDIALOG, 0, (LPARAM)&urd);

			SendMessage(hwndDlg, WM_MOVE, 0, 0);
		}
		break;

	case WM_SHOWWINDOW:
		if ((wParam) && (IsDlgButtonChecked(hwndDlg, IDC_CONTACT)))
			SetFocus(GetDlgItem(hwndDlg, IDC_CLIST));
		break;

	case WM_COMMAND:
		switch (LOWORD(wParam)) {
		case IDC_NULL:
		case IDC_CONTACT:
			CheckRadioButton(hwndDlg, IDC_NULL, IDC_CONTACT, LOWORD(wParam));
			EnableWindow(GetDlgItem(hwndDlg, IDC_CLIST), IsDlgButtonChecked(hwndDlg, IDC_CONTACT));
			if (IsDlgButtonChecked(hwndDlg, IDC_CONTACT))
				SetFocus(GetDlgItem(hwndDlg, IDC_CLIST));
			break;
		}
		break;

	case WM_NOTIFY:
		switch (((NMHDR *) lParam)->idFrom) {
		case IDC_CLIST:
			switch (((NMHDR *) lParam)->code) {
			case CLN_OPTIONSCHANGED:
				ResetCList(hwndDlg);
				break;
			}
			break;
		}
		break;

	case WM_CLOSE:
		DestroyWindow(hwndDlg);
		break;

	case WM_DESTROY:
		db_unset(NULL, MODULENAME, SETTING_SUBJECT);
		{
			HANDLE hContact = (HANDLE)SendMessage(hwndDlg, VARM_GETSUBJECT, 0, 0);
			if (hContact != NULL) {
				TCHAR *tszContact = encodeContactToString(hContact);
				if (tszContact != NULL) {
					db_set_ts(NULL, MODULENAME, SETTING_SUBJECT, tszContact);
					mir_free(tszContact);
		}	}	}
		break;
	}

	return FALSE;
}

// dialog box for the tokens
static TCHAR *getTokenCategory(TOKENREGISTEREX *tr) {

	TCHAR *res;

	char *cat, *cur, *helpText;

	if (tr == NULL) {
		return NULL;
	}
	cat = NULL;
	helpText = mir_strdup(tr->szHelpText);
	if (helpText == NULL) {
		return NULL;
	}
	cur = helpText;
	while (*cur != _T('\0')) {
		if (*cur == _T('\t')) {
			*cur = _T('\0');
			helpText = ( char* )mir_realloc(helpText, strlen(helpText)+1);

			res = mir_a2t(helpText);
			mir_free(helpText);
			return res;

		}
		cur++;
	}

	res = mir_a2t(helpText);
	mir_free(helpText);
	return res;

}

static TCHAR *getHelpDescription(TOKENREGISTEREX *tr)
{
	if (tr == NULL)
		return NULL;

	char *cur = tr->szHelpText + strlen(tr->szHelpText);
	while (cur > tr->szHelpText) {
		if (*cur == _T('\t')) {

			cur = mir_strdup(cur+1);
			TCHAR *res = mir_a2t(cur);
			mir_free(cur);
			return res;

		}
		cur--;
	}

	return mir_a2t(tr->szHelpText);

}

static TCHAR *getTokenDescription(TOKENREGISTEREX *tr)
{
	int len;
	char *args, *helpText, *cur, *first, *second;
	TCHAR *desc, *tArgs;

	if (tr == NULL)
		return NULL;

	args = NULL;
	tArgs = NULL;
	if (tr->szHelpText == NULL)
		return mir_tstrdup(tr->tszTokenString);

	helpText = mir_strdup(tr->szHelpText);
	if (helpText == NULL)
		return NULL;

	cur = helpText;
	first = second = NULL;
	while (*cur != _T('\0')) {
		if (*cur == _T('\t')) {
			if (first == NULL)
				first = cur;
			else if (second == NULL)
				second = cur;
		}
		cur++;
	}

	if ((first != NULL) && (second != NULL)) {
		*second = _T('\0');
		args = first+1;
	}
	else args = NULL;

	len = _tcslen(tr->tszTokenString) + (args!=NULL?strlen(args):0) + 3;
	desc = (TCHAR*)mir_calloc(len * sizeof(TCHAR));
	if (desc == NULL)
		return NULL;

	if (tr->flags&TRF_FIELD)
		mir_sntprintf(desc, len, _T("%c%s%c"), _T(FIELD_CHAR), tr->szTokenString, _T(FIELD_CHAR));
	else {
		if (args != NULL)

			tArgs = mir_a2t(args);

		mir_sntprintf(desc, len, _T("%c%s%s"), _T(FUNC_CHAR), tr->tszTokenString, (tArgs!=NULL?tArgs:_T("")));
	}
	if (tArgs != NULL)
		mir_free(tArgs);

	if (helpText != NULL)
		mir_free(helpText);

	return desc;
}

static int CALLBACK compareTokenHelp(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort) {

	TOKENREGISTEREX *tr1, *tr2;
	TCHAR *cat1, *cat2;
	int res;

	res = 0;
	tr1 = (TOKENREGISTEREX *)lParam1;
	tr2 = (TOKENREGISTEREX *)lParam2;
	if (tr1 == NULL || tr2 == NULL)
		return 0;

	cat1 = getTokenCategory(tr1);
	cat2 = getTokenCategory(tr2);
	if (cat1 != NULL && cat2 != NULL) {
		res = _tcscmp(cat1, cat2);
		mir_free(cat1);
		mir_free(cat2);
		cat1 = cat2 = NULL;
		if (res != 0)
			return res;

		if (tr1->tszTokenString == NULL || tr2->tszTokenString == NULL)
			return 0;

		return _tcscmp(tr1->tszTokenString, tr2->tszTokenString);
	}

	if (cat1 != NULL)
		mir_free(cat1);

	if (cat2 != NULL)
		mir_free(cat2);

	return 0;
}

static BOOL CALLBACK processTokenListMessage(HWND hwndDlg,UINT msg,WPARAM wParam,LPARAM lParam) {

	/* hwndDlg must be a child of the help dialog */
	switch(msg) {
	case WM_INITDIALOG: {
		HELPDLGDATA *hdd;
		TOKENREGISTEREX *tr;
		HWND hList;
		LVCOLUMN lvCol;
		LVITEM lvItem;
		TCHAR *tszTokenDesc, *tszHelpDesc, *last, *cat, *text;
		int i;

		// token list things
		hList = GetDlgItem(hwndDlg, IDC_TOKENLIST);
		memset(&lvCol,0,sizeof(lvCol));
		lvCol.mask = LVCF_TEXT;
		lvCol.pszText=TranslateT("Token");
		ListView_InsertColumn(hList, 0, &lvCol);
		lvCol.pszText=TranslateT("Description");
		ListView_InsertColumn(hList, 1, &lvCol);

		hdd = (HELPDLGDATA *)GetWindowLongPtr(GetParent(hwndDlg), GWLP_USERDATA);
		i = -1;
		do {
			i += 1;
			tszHelpDesc = tszTokenDesc = NULL;
			tr = getTokenRegister(i);
			if ((tr == NULL) || (tr->tszTokenString == NULL)) {
				continue;
			}
			else if (hdd != NULL) {
				if (!_tcscmp(tr->tszTokenString, _T(SUBJECT))) {
					if (hdd->vhs->flags&VHF_HIDESUBJECTTOKEN) {
						continue;
					}
					else if (hdd->vhs->szSubjectDesc != NULL) {

						tszHelpDesc = mir_a2t(hdd->vhs->szSubjectDesc);

					}
				}
				if (!_tcscmp(tr->tszTokenString, _T(EXTRATEXT))) {
					if (hdd->vhs->flags&VHF_HIDEEXTRATEXTTOKEN) {
						continue;
					}
					else if (hdd->vhs->szExtraTextDesc != NULL) {

						tszHelpDesc = mir_a2t(hdd->vhs->szExtraTextDesc);

					}
				}
			}
			memset(&lvItem,0,sizeof(lvItem));
			lvItem.mask = LVIF_TEXT|LVIF_PARAM;
			lvItem.iItem = ListView_GetItemCount(hList);
			lvItem.iSubItem = 0;
			lvItem.lParam = (LPARAM)tr;
			tszTokenDesc = getTokenDescription(tr);
			if (tszTokenDesc == NULL) {
				continue;
			}
			lvItem.pszText = tszTokenDesc;
			ListView_InsertItem(hList, &lvItem);
			mir_free(tszTokenDesc);

			lvItem.mask = LVIF_TEXT;
			if (tszHelpDesc == NULL) {
				tszHelpDesc = getHelpDescription(tr);
			}
			if (tszHelpDesc == NULL) {
				tszHelpDesc = mir_tstrdup(_T("unknown"));
			}
			lvItem.iSubItem = 1;
			lvItem.pszText = TranslateTS(tszHelpDesc);
			ListView_SetItem(hList, &lvItem);
			mir_free(tszHelpDesc);
		} while (tr != NULL);
		ListView_SetColumnWidth(hList, 0, LVSCW_AUTOSIZE);
		ListView_SetColumnWidth(hList, 1, LVSCW_AUTOSIZE);
		ListView_SortItems(hList, compareTokenHelp, 0);
		last = text = NULL;
		for (i=0;i<ListView_GetItemCount(hList);i++) {
			lvItem.mask = LVIF_PARAM;
			lvItem.iSubItem = 0;
			lvItem.iItem = i;
			if (ListView_GetItem(hList, &lvItem) == FALSE) {
				continue;
			}
			cat = getTokenCategory((TOKENREGISTEREX *)lvItem.lParam);
			if (cat != NULL) {
				text = mir_tstrdup(TranslateTS(cat));
				mir_free(cat);
			}
			else {
				text = NULL;
			}
			if ((text != NULL) && ((last == NULL) || (_tcsicmp(last, text)))) {
				lvItem.mask = LVIF_TEXT;
				lvItem.pszText = text;
				ListView_InsertItem(hList, &lvItem);
				if (last != NULL) {
					mir_free(last);
					lvItem.iSubItem = 0;
					lvItem.pszText = _T("");
					ListView_InsertItem(hList, &lvItem);
				}
				last = text;
			}
			else {
				mir_free(text);
			}
		}
		if (last != NULL) {
			mir_free(last);
		}
		break;
	}

	case WM_NOTIFY:
		if ((((NMHDR*)lParam)->idFrom == IDC_TOKENLIST) && (((NMHDR*)lParam)->code == NM_DBLCLK)) {
			HWND hList, hwndInputDlg;
			LVITEM lvItem;
			int len, item;
			TCHAR *tokenString;
			TOKENREGISTER *tr;

			hwndInputDlg = (HWND)SendMessage(GetParent(hwndDlg), VARM_GETDIALOG, (WPARAM)VHF_INPUT, 0);
			if (hwndInputDlg == NULL) {
				break;
			}
			hList = GetDlgItem(hwndDlg, IDC_TOKENLIST);
			item = ListView_GetNextItem(hList, -1, LVNI_SELECTED|LVNI_FOCUSED);
			ZeroMemory(&lvItem, sizeof(lvItem));
			lvItem.mask = LVIF_PARAM;
			lvItem.iSubItem = 0;
			lvItem.iItem = item;
			if (ListView_GetItem(hList, &lvItem) == FALSE) {
				break;
			}
			tr = (TOKENREGISTER *)lvItem.lParam;
			if (tr == NULL) {
				break;
			}
			len = _tcslen(tr->tszTokenString) + 2;
			if (len < 0) {
				break;
			}
			tokenString = (TCHAR*)mir_alloc((len+1)*sizeof(TCHAR));
			if (tokenString == NULL) {
				break;
			}
			ZeroMemory(tokenString, (len+1)*sizeof(TCHAR));
			wsprintf(tokenString, _T("%c%s%c"), (tr->flags&TRF_FIELD?_T(FIELD_CHAR):_T(FUNC_CHAR)), tr->tszTokenString, (tr->flags&TRF_FIELD?_T(FIELD_CHAR):_T('(')));
			SendDlgItemMessage(hwndInputDlg, IDC_TESTSTRING, EM_REPLACESEL, (WPARAM)TRUE, (LPARAM)tokenString);
			mir_free(tokenString);
			SetFocus(GetDlgItem(hwndInputDlg, IDC_TESTSTRING));
		}
		break;
	}

	return FALSE;
}

// "token only" dialog proc
static INT_PTR CALLBACK tokenHelpDlgProc(HWND hwndDlg,UINT msg,WPARAM wParam,LPARAM lParam)
{
	processTokenListMessage(hwndDlg, msg, wParam, lParam);
	switch(msg) {
	case WM_INITDIALOG:
		TranslateDialogDefault(hwndDlg);
		break;

	case WM_SIZE:
		if (!IsIconic( hwndDlg )) {
			UTILRESIZEDIALOG urd = { 0 };
			urd.cbSize = sizeof(urd);
			urd.hInstance = hInst;
			urd.hwndDlg = hwndDlg;
			urd.lpTemplate = MAKEINTRESOURCEA(IDD_TOKENS_DIALOG);
			urd.pfnResizer = defaultHelpDialogResize;
			CallService(MS_UTILS_RESIZEDIALOG, 0, (LPARAM)&urd);

			SendMessage(hwndDlg, WM_MOVE, 0, 0);
		}
		break;
	}

	return FALSE;
}

// token + input dialog proc
// from SRMM
static LRESULT CALLBACK SplitterSubclassProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	switch (msg) {
	case WM_NCHITTEST:
		return HTCLIENT;

	case WM_SETCURSOR:
	{
		RECT rc;
		GetClientRect(hwnd, &rc);
		//SetCursor(rc.right > rc.bottom ? hCurSplitNS : hCurSplitWE);
		if (rc.right > rc.bottom)
			SetCursor(hCurSplitNS);

		return TRUE;
	}
	case WM_LBUTTONDOWN:
		SetCapture(hwnd);
		return 0;

	case WM_MOUSEMOVE:
		if (GetCapture() == hwnd) {
			RECT rc;
			GetClientRect(hwnd, &rc);
			SendMessage(GetParent(hwnd), DM_SPLITTERMOVED, rc.right > rc.bottom ? (short) HIWORD(GetMessagePos()) + rc.bottom / 2 : (short) LOWORD(GetMessagePos()) + rc.right / 2, (LPARAM) hwnd);
		}
		return 0;

	case WM_LBUTTONUP:
		ReleaseCapture();
		return 0;
	}
	return CallWindowProc(OldSplitterProc, hwnd, msg, wParam, lParam);
}

struct INPUTDLGDATA
{
	int splitterPos;
	int originalSplitterPos;
	POINT minInputSize;
	POINT minResultSize;
	HWND hwndHelpDlg;
};

static int iFrameX, iFrameY;

static int inputDialogResize(HWND hwndDlg, LPARAM lParam, UTILRESIZECONTROL *urc)
{
	INPUTDLGDATA *dat = (INPUTDLGDATA *)lParam;

	switch(urc->wId) {
	case IDC_TOKENLIST:
		return RD_ANCHORX_WIDTH|RD_ANCHORY_TOP;

	case IDC_TESTSTRING:
		urc->rcItem.bottom -= dat->splitterPos - dat->originalSplitterPos;
		return RD_ANCHORX_WIDTH | RD_ANCHORY_HEIGHT;

	case IDC_SPLITTER:
		urc->rcItem.top -= dat->splitterPos - dat->originalSplitterPos;
		urc->rcItem.bottom -= dat->splitterPos - dat->originalSplitterPos;
		return RD_ANCHORX_WIDTH | RD_ANCHORY_BOTTOM;

	case IDC_RESULT:
		urc->rcItem.top -= dat->splitterPos - dat->originalSplitterPos;
		return RD_ANCHORX_WIDTH|RD_ANCHORY_BOTTOM;
	}

	return RD_ANCHORX_LEFT|RD_ANCHORY_TOP;
}

static INT_PTR CALLBACK inputDlgProc(HWND hwndDlg,UINT msg,WPARAM wParam,LPARAM lParam)
{
	static INPUTDLGDATA *dat = (INPUTDLGDATA *)GetWindowLongPtr(hwndDlg, GWLP_USERDATA);

	processTokenListMessage(hwndDlg, msg, wParam, lParam);
	switch(msg) {
	case WM_INITDIALOG:
		TranslateDialogDefault(hwndDlg);
		dat = ( INPUTDLGDATA* )mir_alloc(sizeof(INPUTDLGDATA));
		ZeroMemory(dat, sizeof(INPUTDLGDATA));
		SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG_PTR)dat);
		// splitter things
		dat->splitterPos = (INT_PTR)db_get_dw(NULL, MODULENAME, SETTING_SPLITTERPOS, -1);
		{
			RECT rc;
			POINT pt;
			GetWindowRect(GetDlgItem(hwndDlg, IDC_SPLITTER), &rc);
			pt.y = (rc.top + rc.bottom) / 2;
			pt.x = 0;
			ScreenToClient(hwndDlg, &pt);
			dat->originalSplitterPos = pt.y;

			if (dat->splitterPos == -1)
				dat->splitterPos = dat->originalSplitterPos;

			GetWindowRect(GetDlgItem(hwndDlg, IDC_SHOWHELP), &rc);
			OldSplitterProc = (WNDPROC) SetWindowLongPtr(GetDlgItem(hwndDlg, IDC_SPLITTER), GWLP_WNDPROC, (LONG_PTR) SplitterSubclassProc);

			GetWindowRect(GetDlgItem(hwndDlg, IDC_TESTSTRING), &rc);
			dat->minInputSize.x = rc.right - rc.left;
			dat->minInputSize.y = rc.bottom - rc.top;
			GetWindowRect(GetDlgItem(hwndDlg, IDC_RESULT), &rc);
			dat->minResultSize.x = rc.right - rc.left;
			dat->minResultSize.y = rc.bottom - rc.top;
		}

		dat->hwndHelpDlg = GetParent(hwndDlg);
		SendMessage(hwndDlg, VARM_PARSE, 0, 0);
		SetTimer(hwndDlg, IDT_PARSE, 1000, NULL);

		SetFocus(GetDlgItem(hwndDlg, IDC_TESTSTRING));
		break;

	case DM_SPLITTERMOVED:
		{
			POINT pt;
			RECT rc, rcTeststring, rcResult;
			int oldSplitterY;

			if ((HWND)lParam == GetDlgItem(hwndDlg, IDC_SPLITTER)) {
				GetClientRect(hwndDlg, &rc);
				pt.x = 0;
				pt.y = wParam;
				ScreenToClient(hwndDlg, &pt);
				oldSplitterY = dat->splitterPos;
				dat->splitterPos = rc.bottom - pt.y + 223;
				GetWindowRect(GetDlgItem(hwndDlg, IDC_TESTSTRING), &rcTeststring);
				GetWindowRect(GetDlgItem(hwndDlg, IDC_RESULT), &rcResult);
				if ((((rcTeststring.bottom - rcTeststring.top) - (dat->splitterPos - oldSplitterY)) < dat->minInputSize.y) || (((rcResult.bottom - rcResult.top) + (dat->splitterPos - oldSplitterY)) < dat->minResultSize.y)) 
					dat->splitterPos = oldSplitterY;
		}	}

		SendMessage(hwndDlg, WM_SIZE, 0, 0);
		break;

	case WM_COMMAND:
		switch (LOWORD(wParam)) {
		case IDC_TESTSTRING:
			if (HIWORD(wParam) == EN_CHANGE)
				SendMessage(hwndDlg, VARM_PARSE, 0, 0);
			break;
		}
		break;

	case WM_GETMINMAXINFO: 
		{
			RECT rc, rcTeststring;
			GetWindowRect(GetParent(hwndDlg), &rc);
			GetWindowRect(GetDlgItem(hwndDlg, IDC_TESTSTRING), &rcTeststring);
			((MINMAXINFO*)lParam)->ptMinTrackSize.y = (rc.bottom - rc.top) - (((rcTeststring.bottom - rcTeststring.top) - dat->minResultSize.y));
		}
		break;

	case WM_SIZE:
		if (!IsIconic( hwndDlg )) {
			UTILRESIZEDIALOG urd = { 0 };
			urd.cbSize = sizeof(urd);
			urd.hInstance = hInst;
			urd.hwndDlg = hwndDlg;
			urd.lParam = (LPARAM)dat;
			urd.lpTemplate = MAKEINTRESOURCEA(IDD_INPUT_DIALOG);
			urd.pfnResizer = inputDialogResize;
			CallService(MS_UTILS_RESIZEDIALOG, 0, (LPARAM)&urd);
		}
		SendMessage(hwndDlg, WM_MOVE, 0, 0);
		break;

	case WM_SHOWWINDOW:
		if (wParam)
			SendMessage(hwndDlg, VARM_PARSE, 0, 0);
		break;

	case WM_NOTIFY:
		break;

	case VARM_PARSE:
		{
			TCHAR *string = Hlp_GetDlgItemText(hwndDlg, IDC_TESTSTRING), *extraText;
			int len = SendMessage(GetParent(hwndDlg), VARM_GETEXTRATEXTLENGTH, 0, 0);
			if (len > 0) {
				extraText = (TCHAR*)mir_calloc((len+1)* sizeof(TCHAR));
				SendMessage(GetParent(hwndDlg), VARM_GETEXTRATEXT, (WPARAM)len+1, (LPARAM)extraText);
			}
			else extraText = NULL;

			if (string != NULL) {
				TCHAR *newString = variables_parsedup(string, extraText, (HANDLE)SendMessage(GetParent(hwndDlg), VARM_GETSUBJECT, 0, 0));
				if (newString != NULL) {
					TCHAR *oldString = Hlp_GetDlgItemText(hwndDlg, IDC_RESULT);
					if (oldString == NULL || _tcscmp(oldString, newString))
						SetWindowText(GetDlgItem(hwndDlg, IDC_RESULT), newString);

					mir_free(newString);
					if (oldString != NULL)
						mir_free(oldString);
				}
				mir_free(string);
		}	}
		break;

	case VARM_SETINPUTTEXT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(GetDlgItem(hwndDlg, IDC_TESTSTRING), WM_SETTEXT, wParam, lParam));
		return TRUE;

	case VARM_GETINPUTTEXTLENGTH:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(GetDlgItem(hwndDlg, IDC_TESTSTRING), WM_GETTEXTLENGTH, wParam, lParam));
		return TRUE;

	case VARM_GETINPUTTEXT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, 
			SendMessage(GetDlgItem(hwndDlg, IDC_TESTSTRING), WM_GETTEXT, wParam, lParam));
		return TRUE;

	case WM_TIMER:
		SendMessage(hwndDlg, VARM_PARSE, 0, 0);
		break;

	case WM_DESTROY:
		KillTimer(hwndDlg, IDT_PARSE);
		db_set_dw(NULL, MODULENAME, SETTING_SPLITTERPOS, dat->splitterPos);
		SetWindowLongPtr(GetDlgItem(hwndDlg, IDC_SPLITTER), GWLP_WNDPROC, (LONG_PTR) OldSplitterProc);
		if (dat != NULL) {
			mir_free(dat);
			dat = NULL;
		}
		break;
	}

	return FALSE;
}

// help info dialog
static INT_PTR CALLBACK helpInfoDlgProc(HWND hwndDlg,UINT msg,WPARAM wParam,LPARAM lParam)
{
	switch(msg) {
	case WM_INITDIALOG:
		SetDlgItemTextA(hwndDlg, IDC_HELPDESC, \
"--- Special characters ---\r\n\r\n\
The following characters have a special meaning in a formatting string:\r\n\r\n\
?<function>(<arguments>)\r\n\
This will parse the function given the arguments, the result will be parsed again. Example: Today is ?cdate(yyyy/MM/dd).\r\n\r\n\
!<function>(<arguments>)\r\n\
This will parse the function given the arguments, the result will not be parsed again. Example: Message waiting: !message(,first,rcvd,unread).\r\n\r\n\
%<field>%\r\n\
This will parse the given field. Example: I installed Miranda at: %mirandapath%.\r\n\r\n\
`<string>`\r\n\
This will not parse the given string, any function, field or special character in the string will shown in the result without being translated. Example: Use `%mirandapath%` to show the installation path.\r\n\r\n\
#<comment>\r\n\
This will add a comment in the formatting string. Everything from the # character to the end of the line will be removed. Example: %dbprofile% #this is a useless comment.\r\n\r\n\r\n\
--- Contacts ---\r\n\r\n\
Whenever a functions requires a contact as an argument, you can specify it in two ways:\r\n\r\n\
(1) Using a unique id (UIN for ICQ, email for MSN) or, a protocol id followed by a unique id in the form <PROTOID:UNIQUEID>, for example <MSN:miranda@hotmail.com> or <ICQ:123456789>.\r\n\r\n\
(2) Using the contact function:\r\n\
?contact(x,y)\r\n\
A contact will be searched which will have value x for its property y, y can be one of the following:\r\n\
first, last, nick, email, id or display\r\n\r\n\
For example: ?contact(miranda@hotmail.com,email) or ?contact(Miranda,nick). The contact function will return either a unique contact according to the arguments or nothing if none or multiple contacts exists with the given property.\
");
		TranslateDialogDefault(hwndDlg);
		break;

	case WM_SIZE:
		if (!IsIconic( hwndDlg )) {
			UTILRESIZEDIALOG urd = { 0 };
			urd.cbSize = sizeof(urd);
			urd.hInstance = hInst;
			urd.hwndDlg = hwndDlg;
			urd.lParam = 0;
			urd.lpTemplate = MAKEINTRESOURCEA(IDD_HELPINFO_DIALOG);
			urd.pfnResizer = defaultHelpDialogResize;
			CallService(MS_UTILS_RESIZEDIALOG, 0, (LPARAM)&urd);

			SendMessage(hwndDlg, WM_MOVE, 0, 0);
		}
		break;
	}

	return FALSE;
}

// the parent page (tabs)
static int helpDialogResize(HWND hwndDlg, LPARAM lParam, UTILRESIZECONTROL *urc)
{
	INPUTDLGDATA *dat = (INPUTDLGDATA *)lParam;
	switch(urc->wId) {
	case IDC_OK:
	case IDC_CANCEL:
		return RD_ANCHORX_RIGHT|RD_ANCHORY_BOTTOM;
	}
	return RD_ANCHORX_WIDTH|RD_ANCHORY_HEIGHT;
}

static INT_PTR CALLBACK helpDlgProc(HWND hwndDlg,UINT msg,WPARAM wParam,LPARAM lParam)
{
	HELPDLGDATA *dat = (HELPDLGDATA *)GetWindowLongPtr(hwndDlg, GWLP_USERDATA);

	switch(msg) {
	case WM_INITDIALOG: {
		int tabCount;
		HWND hTab, hShow, hPage;
		TCITEM tci;
		RECT rcTabs, rcParent;

		hwndHelpDialog = hwndDlg;
		TranslateDialogDefault(hwndDlg);
		dat = ( HELPDLGDATA* )mir_alloc(sizeof(HELPDLGDATA));
		ZeroMemory(dat, sizeof(HELPDLGDATA));
		SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG_PTR)dat);
		dat->vhs = (VARHELPINFO *)lParam;
		// set tabs
		tabCount = 0;
		hTab = GetDlgItem(hwndDlg, IDC_TABS);
		GetWindowRect(hTab, &rcTabs);
		GetWindowRect(hwndDlg, &rcParent);
		ZeroMemory(&tci, sizeof(TCITEM));
		hShow = 0;
		if (dat->vhs->flags&VHF_TOKENS) {
			// token tab
			tci.mask = TCIF_TEXT|TCIF_PARAM;
			tci.pszText = TranslateT("Tokens");
			hPage = CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_TOKENS_DIALOG), hwndDlg, tokenHelpDlgProc, (LPARAM)GetParent(hwndDlg));
			if (pfnEnableThemeDialogTexture)
				pfnEnableThemeDialogTexture(hPage, ETDT_ENABLETAB);

			tci.lParam = (LPARAM)hPage;
			MoveWindow(hPage, (rcTabs.left - rcParent.left), (rcTabs.top - rcParent.top), (rcTabs.right - rcTabs.left) - 2*iFrameX, (rcTabs.bottom - rcTabs.top) - 2*iFrameY, TRUE);
			ShowWindow(hPage, SW_HIDE);
			TabCtrl_InsertItem(hTab, tabCount++, &tci);
			hShow = hShow==0?hPage:hShow;
		}
		if (dat->vhs->flags&VHF_INPUT) {
			// input tab
			tci.mask = TCIF_TEXT|TCIF_PARAM;
			tci.pszText = TranslateT("Input");
			dat->hwndInputDlg = hPage = CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_INPUT_DIALOG), hwndDlg, inputDlgProc, (LPARAM)GetParent(hwndDlg));
			if (pfnEnableThemeDialogTexture) {
				pfnEnableThemeDialogTexture(hPage, ETDT_ENABLETAB);
			}
			tci.lParam = (LPARAM)hPage;
			MoveWindow(hPage, (rcTabs.left - rcParent.left), (rcTabs.top - rcParent.top), (rcTabs.right - rcTabs.left) - 2*iFrameX, (rcTabs.bottom - rcTabs.top) - 2*iFrameY, TRUE);
			ShowWindow(hPage, SW_HIDE);
			TabCtrl_InsertItem(hTab, tabCount++, &tci);
			hShow = hShow==0?hPage:hShow;
			if ((dat->vhs->fi != NULL) && (dat->vhs->fi->szFormat != NULL)) {
				if (dat->vhs->fi->flags & FIF_UNICODE)
					SendMessage(hwndDlg, VARM_SETINPUTTEXT, 0, (LPARAM)dat->vhs->fi->tszFormat);
				else {

					WCHAR *wszFormatString = mir_a2t(dat->vhs->fi->szFormat);
					SendMessage(hwndDlg, VARM_SETINPUTTEXT, 0, (LPARAM)wszFormatString);
					mir_free(wszFormatString);

				}
			}
			else if (dat->vhs->hwndCtrl != NULL) {
				TCHAR *tszText;

				tszText = Hlp_GetWindowText(dat->vhs->hwndCtrl);
				if (tszText != NULL) {
					SendMessage(hwndDlg, VARM_SETINPUTTEXT, 0, (LPARAM)tszText);
					mir_free(tszText);
				}
			}
			if (dat->vhs->fi != NULL || dat->vhs->hwndCtrl != NULL) {
				SetWindowText(GetDlgItem(hwndDlg, IDC_CANCEL), TranslateT("Cancel"));
				ShowWindow(GetDlgItem(hwndDlg, IDC_OK), SW_SHOW);
			}
		}
		if ((dat->vhs->flags&VHF_SUBJECT) ||
			((dat->vhs->flags&VHF_INPUT) && (((dat->vhs->fi != NULL) && (dat->vhs->fi->hContact != NULL)) || (dat->vhs->flags&VHF_SETLASTSUBJECT)))) {
			// subject window is created, but not necessarily shown
			dat->hwndSubjectDlg = hPage = CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_CLIST_DIALOG), hwndDlg, clistDlgProc, (LPARAM)GetParent(hwndDlg));
			if (pfnEnableThemeDialogTexture) {
				pfnEnableThemeDialogTexture(hPage, ETDT_ENABLETAB);
			}

			MoveWindow(hPage, (rcTabs.left - rcParent.left), (rcTabs.top - rcParent.top), (rcTabs.right - rcTabs.left) - 2*iFrameX, (rcTabs.bottom - rcTabs.top) - 2*iFrameY, TRUE);
			ShowWindow(hPage, SW_HIDE);

			if ((dat->vhs->fi != NULL) && (dat->vhs->fi->hContact != NULL))
				SendMessage(hwndDlg, VARM_SETSUBJECT, (WPARAM)dat->vhs->fi->hContact, 0);
			else if (dat->vhs->flags&VHF_SETLASTSUBJECT)
				SendMessage(hwndDlg, VARM_SETSUBJECT, (WPARAM)INVALID_HANDLE_VALUE, 0);

			if (dat->vhs->flags&VHF_SUBJECT) {
				// create subject tab
				tci.lParam = (LPARAM)hPage;
				tci.mask = TCIF_TEXT|TCIF_PARAM;
				tci.pszText = TranslateT("%subject%");
				TabCtrl_InsertItem(hTab, tabCount++, &tci);
				hShow = hShow==0?hPage:hShow;
			}
		}
		if ((dat->vhs->flags&VHF_EXTRATEXT) ||
			((dat->vhs->flags&VHF_INPUT) && (dat->vhs->fi != NULL) && (dat->vhs->fi->tszExtraText != NULL))) {
			// extratext window is created, but not necessarily shown
			dat->hwndExtraTextDlg = hPage = CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_EXTRATEXT_DIALOG), hwndDlg, extratextDlgProc, (LPARAM)GetParent(hwndDlg));
			if (pfnEnableThemeDialogTexture)
				pfnEnableThemeDialogTexture(hPage, ETDT_ENABLETAB);

			MoveWindow(hPage, (rcTabs.left - rcParent.left), (rcTabs.top - rcParent.top), (rcTabs.right - rcTabs.left) - 2*iFrameX, (rcTabs.bottom - rcTabs.top) - 2*iFrameY, TRUE);
			ShowWindow(hPage, SW_HIDE);
			if ((dat->vhs->fi != NULL) && (dat->vhs->fi->tszExtraText != NULL)) {
				if (dat->vhs->fi->flags & FIF_UNICODE)
					SendMessage(hwndDlg, VARM_SETEXTRATEXT, 0, (LPARAM)dat->vhs->fi->tszExtraText);
				else {

					WCHAR *wszSource = mir_a2t(dat->vhs->fi->szExtraText);
					SendMessage(hwndDlg, VARM_SETEXTRATEXT, 0, (LPARAM)wszSource);
					mir_free(wszSource);

				}
			}
			if (dat->vhs->flags&VHF_EXTRATEXT) {
				// create extratext tab
				tci.mask = TCIF_TEXT|TCIF_PARAM;
				tci.pszText = TranslateT("%extratext%");
				tci.lParam = (LPARAM)hPage;
				TabCtrl_InsertItem(hTab, tabCount++, &tci);
				hShow = hShow==0?hPage:hShow;
			}
		}
		if (dat->vhs->flags&VHF_HELP) {
			// helpinfo tab
			tci.mask = TCIF_TEXT|TCIF_PARAM;
			tci.pszText = TranslateT("Help");
			hPage = CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_HELPINFO_DIALOG), hwndDlg, helpInfoDlgProc, (LPARAM)GetParent(hwndDlg));
			if (pfnEnableThemeDialogTexture)
				pfnEnableThemeDialogTexture(hPage, ETDT_ENABLETAB);

			tci.lParam = (LPARAM)hPage;
			MoveWindow(hPage, (rcTabs.left - rcParent.left), (rcTabs.top - rcParent.top), (rcTabs.right - rcTabs.left) - 2*iFrameX, (rcTabs.bottom - rcTabs.top) - 2*iFrameY, TRUE);
			ShowWindow(hPage, SW_HIDE);
			TabCtrl_InsertItem(hTab, tabCount++, &tci);
			hShow = hShow==0?hPage:hShow;
		}		
		Utils_RestoreWindowPositionNoMove(hwndDlg, NULL, MODULENAME, "help");
		SetWindowText(hwndDlg, TranslateT("Variables Help"));
		ShowWindow(hShow, SW_SHOW);
		break;
	}

	case WM_COMMAND:
		switch (LOWORD(wParam)) {
		case IDC_OK:
			if ((dat->vhs->fi != NULL) && (!(dat->vhs->flags&VHF_DONTFILLSTRUCT))) {
				int len = SendMessage(hwndDlg, VARM_GETINPUTTEXTLENGTH, 0, 0);
				if (len > 0) {
					if ((dat->vhs->fi != NULL) && (!(dat->vhs->flags&VHF_DONTFILLSTRUCT))) {
						if (dat->vhs->fi->flags&FIF_UNICODE) {
							dat->vhs->fi->tszFormat = (TCHAR*)mir_calloc((len+1)*sizeof(WCHAR));
							SendMessage(hwndDlg, VARM_GETINPUTTEXT, (WPARAM)len+1, (LPARAM)dat->vhs->fi->tszFormat);
						}
						else {
							dat->vhs->fi->szFormat = ( char* )mir_calloc(len+1);
							SendMessageA(hwndDlg, VARM_GETINPUTTEXT, (WPARAM)len+1, (LPARAM)dat->vhs->fi->szFormat);
						}
					}
				}
			}

			if (dat->vhs->hwndCtrl != NULL) {
				int len = SendMessage(hwndDlg, VARM_GETINPUTTEXTLENGTH, 0, 0);
				if (len > 0) {
					TCHAR *tszText;

					tszText = (TCHAR*)mir_calloc((len+1)*sizeof(TCHAR));
					if (tszText != NULL) {
						SendMessage(hwndDlg, VARM_GETINPUTTEXT, (WPARAM)len+1, (LPARAM)tszText);
						SetWindowText(dat->vhs->hwndCtrl, tszText);
						mir_free(tszText);
					}
				}
				SendMessage(GetParent(dat->vhs->hwndCtrl),
					WM_COMMAND,
					MAKEWPARAM(GetDlgCtrlID(dat->vhs->hwndCtrl),
					EN_CHANGE),
					(LPARAM)dat->vhs->hwndCtrl);
			}

			if ((dat->vhs->flags&VHF_FULLFILLSTRUCT) && (dat->vhs->fi != NULL)) {
				int len = SendMessage(hwndDlg, VARM_GETEXTRATEXTLENGTH, 0, 0);
				if (len > 0) {
					if (dat->vhs->fi->flags&FIF_UNICODE) {
						dat->vhs->fi->tszExtraText = (TCHAR*)mir_calloc((len+1)*sizeof(WCHAR));
						SendMessage(hwndDlg, VARM_GETEXTRATEXT, (WPARAM)len+1, (LPARAM)dat->vhs->fi->tszExtraText);
					}
					else {
						dat->vhs->fi->szExtraText = ( char* )mir_calloc(len+1);
						SendMessageA(hwndDlg, VARM_GETEXTRATEXT, (WPARAM)len+1, (LPARAM)dat->vhs->fi->szExtraText);
					}
				}
				dat->vhs->fi->hContact = (HANDLE)SendMessage(hwndDlg, VARM_GETSUBJECT, 0, 0);
			}
			// fall through

		case IDC_CANCEL:
			if (GetParent(hwndDlg) == NULL)
				DestroyWindow(hwndDlg);
			else
				EndDialog(hwndDlg, 0);
			break;
		}
		break;

	case VARM_SETSUBJECT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(dat->hwndSubjectDlg, VARM_SETSUBJECT, wParam, lParam));
		return TRUE;

	case VARM_GETSUBJECT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(dat->hwndSubjectDlg, VARM_GETSUBJECT, wParam, lParam));
		return TRUE;

	case VARM_SETEXTRATEXT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(dat->hwndExtraTextDlg, VARM_SETEXTRATEXT, wParam, lParam));
		return TRUE;

	case VARM_GETEXTRATEXTLENGTH:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(dat->hwndExtraTextDlg, VARM_GETEXTRATEXTLENGTH, wParam, lParam));
		return TRUE;

	case VARM_GETEXTRATEXT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(dat->hwndExtraTextDlg, VARM_GETEXTRATEXT, wParam, lParam));
		return TRUE;

	case VARM_SETINPUTTEXT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(dat->hwndInputDlg, VARM_SETINPUTTEXT, wParam, lParam));
		return TRUE;

	case VARM_GETINPUTTEXTLENGTH:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(dat->hwndInputDlg, VARM_GETINPUTTEXTLENGTH, wParam, lParam));
		return TRUE;

	case VARM_GETINPUTTEXT:
		SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT,
			SendMessage(dat->hwndInputDlg, VARM_GETINPUTTEXT, wParam, lParam));
		return TRUE;

	case VARM_GETDIALOG:
		switch (wParam) {
		case VHF_INPUT:
			SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, (LPARAM)dat->hwndInputDlg);
			return TRUE;
		}
		break;

	case WM_GETMINMAXINFO:
		{
			int i, count;
			TCITEM tci;
			RECT rcParent;
			HWND hTab;
			MINMAXINFO pageMinMax;

			GetWindowRect(hwndDlg, &rcParent);
			// defaults
			((MINMAXINFO*)lParam)->ptMinTrackSize.x = 400;
			((MINMAXINFO*)lParam)->ptMinTrackSize.y = 400;
			hTab = GetDlgItem(hwndDlg, IDC_TABS);
			tci.mask = TCIF_PARAM;
			count = TabCtrl_GetItemCount(hTab);
			// return the largest of all pages
			for (i=0;i<count;i++) {
				TabCtrl_GetItem(hTab, i, &tci);
				ZeroMemory(&pageMinMax, sizeof(pageMinMax));
				SendMessage((HWND)tci.lParam, WM_GETMINMAXINFO, wParam, (LPARAM)&pageMinMax);
				((MINMAXINFO*)lParam)->ptMinTrackSize.x = max(((MINMAXINFO*)lParam)->ptMinTrackSize.x, pageMinMax.ptMinTrackSize.x);
				((MINMAXINFO*)lParam)->ptMinTrackSize.y = max(((MINMAXINFO*)lParam)->ptMinTrackSize.y, pageMinMax.ptMinTrackSize.y);
			}
		}
		break;

	case WM_SIZE: {
		TCITEM tci;
		int i, count;
		HWND hTab;
		RECT rcTabs, rcParent;

		if(IsIconic(hwndDlg))
			break;

		UTILRESIZEDIALOG urd = { 0 };
		urd.cbSize = sizeof(urd);
		urd.hInstance = hInst;
		urd.hwndDlg = hwndDlg;
		urd.lParam = 0;
		// ! uses ANSI version !
		urd.lpTemplate = MAKEINTRESOURCEA(IDD_HELP_DIALOG);
		urd.pfnResizer = helpDialogResize;
		CallService(MS_UTILS_RESIZEDIALOG, 0, (LPARAM)&urd);

		SendMessage(hwndDlg, WM_MOVE, 0, 0);

		hTab = GetDlgItem(hwndDlg, IDC_TABS);
		GetWindowRect(hTab, &rcTabs);
		GetWindowRect(hwndDlg, &rcParent);
		tci.mask = TCIF_PARAM;
		count = TabCtrl_GetItemCount(hTab);
		for (i=0;i<count;i++) {
			TabCtrl_GetItem(GetDlgItem(hwndDlg,IDC_TABS), i, &tci);
			MoveWindow((HWND)tci.lParam, (rcTabs.left - rcParent.left), (rcTabs.top - rcParent.top), (rcTabs.right - rcTabs.left) - 2*iFrameX, (rcTabs.bottom - rcTabs.top) - 2*iFrameY, TRUE);
		}
		break;
	}

	case WM_NOTIFY:
		if ((((NMHDR*)lParam)->idFrom == IDC_TABS)) {
			if (((NMHDR*)lParam)->code == TCN_SELCHANGING) {
				TCITEM tci;

				tci.mask = TCIF_PARAM;
				TabCtrl_GetItem(GetDlgItem(hwndDlg, IDC_TABS), TabCtrl_GetCurSel(GetDlgItem(hwndDlg, IDC_TABS)), &tci);
				ShowWindow((HWND)tci.lParam, SW_HIDE);
			}
			else if (((NMHDR*)lParam)->code == TCN_SELCHANGE) {
				TCITEM tci;

				tci.mask = TCIF_PARAM;
				TabCtrl_GetItem(GetDlgItem(hwndDlg, IDC_TABS), TabCtrl_GetCurSel(GetDlgItem(hwndDlg, IDC_TABS)), &tci);
				ShowWindow((HWND)tci.lParam, SW_SHOW);
			}
		}
		break;

	case WM_CLOSE:
		if (GetParent(hwndDlg) == NULL)
			DestroyWindow(hwndDlg);
		else
			EndDialog(hwndDlg, 0);
		break;

	case WM_DESTROY:
		Utils_SaveWindowPosition(hwndDlg, NULL, MODULENAME, "help");
		{
			HWND hTab = GetDlgItem(hwndDlg, IDC_TABS);
			
			TCITEM tci;
			tci.mask = TCIF_PARAM;
			int count = TabCtrl_GetItemCount(hTab);
			for ( int i=0; i < count; i++ ) {
				TabCtrl_GetItem(hTab, i, &tci);
				if (((HWND)tci.lParam != dat->hwndSubjectDlg) && ((HWND)tci.lParam != dat->hwndExtraTextDlg))
					DestroyWindow((HWND)tci.lParam);
		}	}

		// these windows might have been created, but not inserted as tabs
		if (IsWindow(dat->hwndSubjectDlg))
			DestroyWindow(dat->hwndSubjectDlg);

		if (IsWindow(dat->hwndExtraTextDlg))
			DestroyWindow(dat->hwndExtraTextDlg);

		mir_free(dat);
		dat = NULL;
		SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG)NULL);
		break;
	}

	return FALSE;
}

INT_PTR showHelpExService(WPARAM wParam, LPARAM lParam)
{
	if (IsWindow(hwndHelpDialog)) {
		SetFocus(hwndHelpDialog);
		return 0;
	}
	if (lParam == 0)
		return -1;

	iFrameX = GetSystemMetrics(SM_CXSIZEFRAME);
	iFrameY = 3 * GetSystemMetrics(SM_CYSIZEFRAME);

	if (wParam)
		DialogBoxParam(hInst, MAKEINTRESOURCE(IDD_HELP_DIALOG), (HWND)wParam, helpDlgProc, (LPARAM)lParam);
	else
		CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_HELP_DIALOG), NULL, helpDlgProc, (LPARAM)lParam);

	return 0;
}

INT_PTR showHelpService(WPARAM wParam, LPARAM lParam)
{
	static VARHELPINFO *vhs = NULL;
	static FORMATINFO *fi = NULL;

	if (fi == NULL)
		fi = ( FORMATINFO* )mir_alloc(sizeof(FORMATINFO));

	ZeroMemory(fi, sizeof(FORMATINFO));
	fi->cbSize = sizeof(FORMATINFO);
	fi->szFormat = (char *)lParam;
	if (vhs == NULL)
		vhs = ( VARHELPINFO* )mir_alloc(sizeof(VARHELPINFO));

	ZeroMemory(vhs, sizeof(VARHELPINFO));
	vhs->cbSize = sizeof(VARHELPINFO);
	vhs->fi = fi;
	vhs->hwndCtrl = (HWND)wParam;
	vhs->flags = VHF_FULLDLG|VHF_DONTFILLSTRUCT;

	return showHelpExService(0, (LPARAM)vhs);
}

INT_PTR getSkinItemService(WPARAM wParam, LPARAM lParam)
{
	int item = lParam;
	if (item == 0)
		return (INT_PTR)NULL;

	switch (item) {
	case VSI_HELPICON:
		if (hHelpIcon == NULL)
			hHelpIcon = Skin_GetIcon("vars_help");
		return (INT_PTR)hHelpIcon;

	case VSI_HELPTIPTEXT:
		return (INT_PTR)Translate("Open String Formatting Help");
	}

	return (INT_PTR)NULL;
}

int iconsChanged(WPARAM wParam, LPARAM lParam)
{
	hHelpIcon = NULL;
	return 0;
}