Generator for Include File Guards

#include "stdinc.h"
#include "resource.h"
#include "maindialog.h"
#include "aboutbox.h"

const TCHAR fmtGuid[] = _TEXT(
	"%08lx_%04x_%04x_%02x%02x_%02x%02x%02x%02x%02x%02x");

const TCHAR fmtGuard[] = _TEXT(
	"#if !defined(%s_INCLUDED_%s)\r\n"
	"#define %s_INCLUDED_%s\r\n"
	"\r\n"
	"#endif // !defined(%s_INCLUDED_%s)\r\n");

BOOL CMainDialog::PreTranslateMessage(MSG* pMsg)
{
	return IsDialogMessage(pMsg);
}

BOOL CMainDialog::OnIdle()
{
	return FALSE;
}


void CMainDialog::CloseDialog(int val)
{
	m_header.Detach();
	m_guard.Detach();

	DestroyWindow();
	::PostQuitMessage(val);
}

CString CMainDialog::GetWindowText(const CWindow& wnd)
{
	int length = wnd.GetWindowTextLength() + 1;

	CString str;
	wnd.GetWindowText(str.GetBuffer(length), length);
	str.ReleaseBuffer();

	return str;
}

// Create guid and transform into text format
CString CMainDialog::CreateGuid()
{
	GUID guid;
	CoCreateGuid(&guid);

	CString str;
	str.Format(
		fmtGuid,
		guid.Data1,
		guid.Data2,
		guid.Data3,
		guid.Data4[0],	guid.Data4[1], guid.Data4[2], guid.Data4[3],
		guid.Data4[4],	guid.Data4[5], guid.Data4[6], guid.Data4[7]);

	return str;
}

CString CMainDialog::CreateGuard(CString strHeader, CString strGuid)
{
	if (strHeader.Find(_TEXT('.')) == -1)
	{
		strHeader = strHeader + _TEXT(".h");
	}

	strHeader.Replace(_TEXT('.'), _TEXT('_'));

	strHeader.MakeUpper();
	strGuid.MakeUpper();

	CString str;
	str.Format(
		fmtGuard, 
		strHeader, strGuid,
		strHeader, strGuid,
		strHeader, strGuid);

	return str;
}

LRESULT CMainDialog::OnInitDialog(HWND, LPARAM)
{
	// center the dialog on the screen
	CenterWindow();

	// set icons
	HICON hIcon = (HICON)::LoadImage(_Module.GetResourceInstance(), MAKEINTRESOURCE(IDR_MAINFRAME), 
		IMAGE_ICON, ::GetSystemMetrics(SM_CXICON), ::GetSystemMetrics(SM_CYICON), LR_DEFAULTCOLOR);
	SetIcon(hIcon, TRUE);
	HICON hIconSmall = (HICON)::LoadImage(_Module.GetResourceInstance(), MAKEINTRESOURCE(IDR_MAINFRAME), 
		IMAGE_ICON, ::GetSystemMetrics(SM_CXSMICON), ::GetSystemMetrics(SM_CYSMICON), LR_DEFAULTCOLOR);
	SetIcon(hIconSmall, FALSE);

	// register object for message filtering and idle updates
	CMessageLoop* pLoop = _Module.GetMessageLoop();
	ATLASSERT(pLoop != NULL);
	pLoop->AddMessageFilter(this);
	pLoop->AddIdleHandler(this);

	UIAddChildWindowContainer(m_hWnd);

	// attach header file edit control
	HWND hHeader = GetDlgItem(IDC_HEADER);
	ATLASSERT(hHeader != 0);
	m_header.Attach(hHeader);

	// attach guard edit control
	HWND hGuard = GetDlgItem(IDC_GUARD);
	ATLASSERT(hGuard != 0);
	m_guard.Attach(hGuard);

	return true;
}

LRESULT CMainDialog::OnAppAbout(uint /*notifyCode*/, int /*id*/, HWND /*hCtrl*/)
{
	CAboutBox about;
	about.DoModal();
	return 0;
}

LRESULT CMainDialog::OnOK(uint /*notifyCode*/, int /*id*/, HWND /*hCtrl*/)
{
	CString strHeader = GetWindowText(m_header);

	CString strGuid = CreateGuid();

	CString strGuard = CreateGuard(strHeader, strGuid);
	m_guard.SetWindowText(strGuard);

	GotoDlgCtrl(m_guard);

	return 0;
}

LRESULT CMainDialog::OnCancel(uint /*notifyCode*/, int id, HWND /*hCtrl*/)
{
	CloseDialog(id);
	return 0;
}