A fast and lightweight cell control

#include "stdafx.h"
#include "../include/filedialog.h"
namespace xm{namespace ui{
UINT_PTR CALLBACK CxmFileDialog::OFNHookProc(HWND hdlg,UINT uiMsg,WPARAM wParam, LPARAM lParam)
{
	if(uiMsg==WM_INITDIALOG){
		/*
		HWND hWnd=GetParent(hdlg);
		HWND hWndParent=GetParent(hWnd);
		RECT rcMain,rc;
		::GetWindowRect(hWndParent,&rcMain);
		::GetWindowRect(hWnd,&rc);
		int x=rcMain.left+(rcMain.right-rcMain.left-(rc.right-rc.left))/2;
		int y=rcMain.top+(rcMain.bottom-rcMain.top-(rc.bottom-rc.top))/2;
		::SetWindowPos(hWnd,0,x,y,0,0,SWP_NOZORDER|SWP_NOSIZE);
		*/
		CWindow wnd=GetParent(hdlg);
		wnd.CenterWindow(wnd.GetParent());
		return TRUE;
	}
	return FALSE;
}

CxmFileDialog::CxmFileDialog(
			BOOL bOpenFileDialog, // TRUE for FileOpen, FALSE for FileSaveAs
			LPCTSTR lpszFilter,
			LPCTSTR lpszTitle,
			HWND hWndParent,
			LPCTSTR lpszDefExt,
			LPCTSTR lpszFileName,
			DWORD dwFlags
		)
{
	memset(&m_ofn, 0, sizeof(m_ofn)); // initialize structure to 0/NULL
	m_szFileName[0] = '\0';
	m_szFileTitle[0] = '\0';
	if(lpszTitle)
	{
		lstrcpy(m_szFileTitle,lpszTitle);
	}
	m_bOpenFileDialog = bOpenFileDialog;

	m_ofn.lStructSize = sizeof(m_ofn);
//	m_ofn.lStructSize = 88;
	
	m_ofn.lpstrTitle		= m_szFileTitle;//_T("ѡ��һ�������ļ�"); // Caption
	m_ofn.hwndOwner         = hWndParent;
	m_ofn.lpstrFile         = m_szFileName;
	m_ofn.nMaxFile          = MAX_PATH;
	m_ofn.lpstrInitialDir	= NULL;//_T("c:\\");
	m_ofn.lpstrFilter		= lpszFilter;
	m_ofn.lpfnHook			= (LPOFNHOOKPROC)OFNHookProc;
	//m_ofn.nFilterIndex      = 2;
	m_ofn.Flags             = dwFlags;//OFN_CREATEPROMPT | OFN_LONGNAMES |OFN_ENABLEHOOK|OFN_EXPLORER|OFN_ENABLESIZING|OFN_HIDEREADONLY ;//| OFN_OVERWRITEPROMPT|OFN_ENABLEHOOK|OFN_EXPLORER;//dwFlags;//
}
INT_PTR CxmFileDialog::DoModal(HWND hWndParent)
{
	if(m_ofn.hwndOwner == NULL)		// set only if not specified before
		m_ofn.hwndOwner = hWndParent;
	BOOL bRet;
	if(m_bOpenFileDialog)
		bRet = ::GetOpenFileName(&m_ofn);
	else
		bRet = ::GetSaveFileName(&m_ofn);

	return bRet ? IDOK : IDCANCEL;
}
}}//namespace xm::ui