// ==========================================================================
// 							Class Implementation : COXDirectoryDialog
// ==========================================================================

// Source file :oxdirdlg.cpp

// Version: 9.3

// This software along with its related components, documentation and files ("The Libraries")
// is © 1994-2007 The Code Project (1612916 Ontario Limited) and use of The Libraries is
// governed by a software license agreement ("Agreement").  Copies of the Agreement are
// available at The Code Project (www.codeproject.com), as part of the package you downloaded
// to obtain this file, or directly from our office.  For a copy of the license governing
// this software, you may contact us at legalaffairs@codeproject.com, or by calling 416-849-8900.                      

// //////////////////////////////////////////////////////////////////////////

#include "stdafx.h"		// standard MFC include
#include <stdlib.h>
#include <dlgs.h>
#include <direct.h>
#include <limits.h>		// For SHRT_MAX
#include "oxdirdlg.h"		// class specification
#include "path.h"		// To get current dir, create a dir, etc.
#include "OXMainRes.h"

#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// Definition of static members


// Data members -------------------------------------------------------------
// protected:
// CString m_sTitle;
// --- The title text of the dialog

// CString m_sFullDir;
// --- The specified directory (may not yet exist);

// CString m_sExistingDir;
// --- That part of the specified directory that does exist

// BOOL m_bNewDirAllowed
// --- Whether the specification of a non-existing directory is allowed

// BOOL m_bAfterInit
// --- Whether the initializations in OnInitDialog executed already or not

// BOOL m_bExplorerOn95
// --- Whether the class is used in a Windows95 environment and with EXPLORER look

// private:

// Member functions ---------------------------------------------------------
// public:

COXDirectoryDialog::COXDirectoryDialog(LPCTSTR pszDefaultDir /* = NULL */,
									   LPCTSTR pszTitle /* = NULL */, BOOL bNewDirAllowed /* = FALSE */,
									   DWORD dwFlags /* = OFN_HIDEREADONLY */, CWnd* pParentWnd /* = NULL */)
									   : 
m_sTitle(pszTitle),
m_sFullDir(pszDefaultDir),
m_sExistingDir(),
m_bNewDirAllowed(bNewDirAllowed),
m_bAfterInit(FALSE),
m_bNewCreated(FALSE),
#ifdef WIN32
m_bExplorerOn95((dwFlags & OFN_EXPLORER) && IsWin95()),
CFileDialog(TRUE, NULL, NULL, ((dwFlags & OFN_EXPLORER) && IsWin95()) ? dwFlags :
			dwFlags | OFN_ENABLETEMPLATE, NULL, pParentWnd)
#else
m_bExplorerOn95(FALSE),
CFileDialog(TRUE, NULL, NULL, dwFlags | OFN_ENABLETEMPLATE,	NULL, pParentWnd)
#endif
{
	//{{AFX_DATA_INIT(COXDirectoryDialog)
	//}}AFX_DATA_INIT

#ifdef _DEBUG
	if (!m_bExplorerOn95)
		// ... The new directory dialog resource must be accessable
#ifdef _AFXDLL
		ASSERT(AfxFindResourceHandle(MAKEINTRESOURCE(IDD_OX_FILEOPENDUMMY), RT_DIALOG) != NULL);
#else
		ASSERT(AfxGetResourceHandle() != NULL);
#endif
#endif

	// ... If no directory is specified, use the current default dir
	if (m_sFullDir.IsEmpty())
	{
		COXDirSpec currentDir;
		VERIFY(currentDir.DoGetCurrentDir());
		m_sFullDir = currentDir.GetDirectory();
	}

	// It is possible that some parts of the specified directory do not yet exist
	// (E.g. When specifying C:\ONO\TWO\THREE, it is possible that
	//  C:\ONE\TWO exists, but C:\ONO\TWO\THREE does not)
	// We will now extract the existing part
	COXDirSpec realDir;
	if (!realDir.SetDirectory(m_sFullDir) || realDir.GetDirectory().IsEmpty())
	{
		TRACE(_T("COXDirectoryDialog::COXDirectoryDialog ; Illegal or no directrory (%s) specified, using default dir\n"),
			pszDefaultDir == NULL ? _T("") : pszDefaultDir);
		VERIFY(realDir.DoGetCurrentDir());
		m_sFullDir = m_sExistingDir = realDir.GetDirectory();
	}
	else
	{
		realDir.MakeLargestExisting();
		m_sExistingDir = realDir.GetDirectory();
	}

	m_ofn.lpstrInitialDir = m_sExistingDir;
	m_ofn.lpstrTitle = m_sTitle;

#ifdef WIN32
	if (!m_bExplorerOn95)
	{
		// MFC CFileDialog automatically chooses EXPLORER look when in Win95
		// even when the user did not pass it in the parameter dwFlags
		// so eliminate it again
		m_ofn.Flags &= ~OFN_EXPLORER;
#ifdef _AFXDLL
		m_ofn.hInstance = AfxFindResourceHandle(MAKEINTRESOURCE(IDD_OX_FILEOPENDUMMY), RT_DIALOG);
#else
		m_ofn.hInstance = AfxGetResourceHandle();
#endif // _AFXDLL 
		m_ofn.lpTemplateName = MAKEINTRESOURCE(IDD_OX_FILEOPENDUMMY);
		ASSERT(!(m_ofn.Flags & OFN_EXPLORER));
	}
#else
#ifdef _AFXDLL
	m_ofn.hInstance = AfxFindResourceHandle(MAKEINTRESOURCE(IDD_OX_FILEOPENDUMMY), RT_DIALOG);
#else
	m_ofn.hInstance = AfxGetResourceHandle();
#endif // _AFXDLL 
	m_ofn.lpTemplateName = MAKEINTRESOURCE(IDD_OX_FILEOPENDUMMY);
#endif
}

#ifdef WIN32
BOOL COXDirectoryDialog::IsWin95()
// --- In  : 
// --- Out : 
// --- Returns :
// --- Effect : Determine the environment the app is executing in.
{
	BOOL bWin95 = FALSE;
	OSVERSIONINFO info;

	info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
	GetVersionEx(&info);
	if (info.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS ||
		(info.dwPlatformId == VER_PLATFORM_WIN32_NT && info.dwMajorVersion >= 4))
		bWin95 = TRUE;

	return bWin95;
}

CString COXDirectoryDialog::GetFolderPath() const
// --- In  : 
// --- Out : 
// --- Returns :
// --- Effect : When in EXPLORER look ask the dialog what is the currently
//				selected directory
{
	ASSERT(::IsWindow(m_hWnd));
	ASSERT(m_bExplorerOn95);

	CString strResult;
	if (GetParent()->SendMessage(CDM_GETFOLDERPATH, (WPARAM)MAX_PATH, (LPARAM)strResult.GetBuffer(MAX_PATH)) < 0)
		strResult.Empty();
	else
		strResult.ReleaseBuffer();

	return strResult;
}
#endif

BOOL COXDirectoryDialog::OnInitDialog()
{  
	CFileDialog::OnInitDialog();

	CenterWindow();

	if (!m_bExplorerOn95)
	{
		// .... The directory edit control must exist within this dialog
		ASSERT(GetDlgItem(IDC_OX_DIRECTORY) != NULL);

		// ... Use lower case to show a dir
		CString sDirectory(m_sFullDir);
#ifndef OX_FILEMNG_NOCHANGECASE
		sDirectory.MakeLower();
#endif
		GetDlgItem(IDC_OX_DIRECTORY)->SetWindowText(sDirectory);

		// Let's hide these windows so the user cannot tab to them.  Note that in
		// the private template (in cddemo.dlg) the coordinates for these guys are
		// *outside* the coordinates of the dlg window itself.  Without the following
		// ShowWindow()'s you would not see them, but could still tab to them.
		GetDlgItem(stc2)->ShowWindow(SW_HIDE);
		GetDlgItem(stc3)->ShowWindow(SW_HIDE);
		GetDlgItem(edt1)->ShowWindow(SW_HIDE);
		GetDlgItem(lst1)->ShowWindow(SW_HIDE);
		GetDlgItem(cmb1)->ShowWindow(SW_HIDE);

		// We must put something in this field, even though it is hidden.  This is
		// because if this field is empty, or has something like "*.txt" in it,
		// and the user hits OK, the dlg will NOT close.  We'll jam something in
		// there (like "Junk") so when the user hits OK, the dlg terminates.
		// Note that we'll deal with the "Junk" during return processing (see below)
		SetDlgItemText(edt1, _T("Junk"));

		// The directory text shown in the static control above the directory
		// listbox, will always fit.  When the directory text becomes to large
		// full stops are automatically inserted (like "C:\..\DIR1\DIR2")
		// Because we want to use this contents to show in an edit control, 
		// no full stops should be inserted.  
		// This can be done by making the static control large enough 
		// so full stops will never be inserted
		// Because it will always be invisible, this poses no problem

		CWnd* pDirStatic;
		CRect staticRect;
		pDirStatic = GetDlgItem(stc1);
		ASSERT(pDirStatic != NULL);
		// ... Get the present size
		pDirStatic->GetClientRect(staticRect);
		// ... Make as large as possible
		staticRect.left = 0;
		staticRect.right = SHRT_MAX;
		pDirStatic->MoveWindow(staticRect);
		// ... Hide window
		pDirStatic->ShowWindow(SW_HIDE);

		// Now set the focus to the directory edit control and 
		// select that part of the directory that does not yet exist on disk
		GetDlgItem(IDC_OX_DIRECTORY)->SetFocus();
		// Determine the part of the full directory, that is also in the
		// existing directory
		m_sFullDir.MakeLower();
		m_sExistingDir.MakeLower();
		LPCTSTR pszFullDir = m_sFullDir;
		LPCTSTR pszExistingDir = m_sExistingDir;
		// ... While neither has reached the end of the string and both
		//     characters are the same, continue searching
		while ((*pszFullDir == *pszExistingDir) && (*pszFullDir != _T('\0')))
		{
			pszFullDir++;
			pszExistingDir++;
		}
		// ... Select thet apret that does not yet exist on disk
		((CEdit*)GetDlgItem(IDC_OX_DIRECTORY))->SetSel(PtrToLong(pszFullDir - (LPCTSTR)m_sFullDir), 
			INT_MAX);
	}
#ifdef WIN32
	else
	{
		GetParent()->SendMessage(CDM_HIDECONTROL, (WPARAM)stc3, (LPARAM)0);
		GetParent()->SendMessage(CDM_HIDECONTROL, (WPARAM)edt1, (LPARAM)0);
		GetParent()->SendMessage(CDM_HIDECONTROL, (WPARAM)stc2, (LPARAM)0);
		GetParent()->SendMessage(CDM_HIDECONTROL, (WPARAM)cmb1, (LPARAM)0);
	}
#endif

	m_bAfterInit = TRUE;
	// flag that specifies if picked directory was created or already existed
	m_bNewCreated=FALSE;
	// Focus already explicitely set
	return FALSE;
}

CString COXDirectoryDialog::GetDirectory()
{
	return m_sFullDir;
}

// protected:
void COXDirectoryDialog::OnLBSelChangedNotify(UINT nIDBox, UINT iCurSel, UINT nCode)
{
	ASSERT(!m_bExplorerOn95);
	if (m_bExplorerOn95)
		return;

	CFileDialog::OnLBSelChangedNotify(nIDBox, iCurSel, nCode);
	// When the selection in the directory listbox changes,
	// adjust the diretcory in the edit control
	if (m_bAfterInit && ((nIDBox == lst2) && (nCode == CD_LBSELCHANGE) || 
		(nIDBox == cmb2) && (nCode == CD_LBSELCHANGE)))
	{
		// Tranfer the directory spec from the hidden static control
		// to the visible edit control
		CString sDir;

#ifdef OX_FILEMNG_NOCHANGECASE
		int nSel=GetDlgItem(lst2)->SendMessage(LB_GETCURSEL);
		if(nSel!=LB_ERR)
		{
			sDir.Empty();
			CString sPath;
			for(int nIndex=0; nIndex<=nSel; nIndex++)
			{
				if (GetDlgItem(lst2)->SendMessage(LB_GETTEXT,(WPARAM)nIndex, 
					(LPARAM)sPath.GetBuffer(MAX_PATH))==LB_ERR)
				{
					sPath.ReleaseBuffer();
					GetDlgItem(stc1)->GetWindowText(sDir);
					break;
				}
				sPath.ReleaseBuffer();
				sDir+=(nIndex>1 ? _T("\\") : _T(""))+sPath;
			}
		}
#else
		GetDlgItem(stc1)->GetWindowText(sDir);
#endif

		// ... The string should not contain double full stops within the
		//     directory spec (this would mean that the hidden static control
		//     is to small!)
		ASSERT(sDir.Find(_T("..")) == -1);
		GetDlgItem(IDC_OX_DIRECTORY)->SetWindowText(sDir);
	}
}

#ifdef WIN32
void COXDirectoryDialog::OnFolderChange()
// Notification for Windows 95 and Windows NT 4.0
{
	ASSERT(m_bExplorerOn95);
	if (!m_bExplorerOn95)
		return;

	COXPathSpec sPath;
	m_sFullDir = GetFolderPath();
	sPath.SetDirectory(m_sFullDir);
	sPath.SetFileName(_T("junk.xxx"));
	GetParent()->SendMessage(CDM_SETCONTROLTEXT, (WPARAM)edt1, (LPARAM)(LPCTSTR)sPath.GetPath());
}
#endif

void COXDirectoryDialog::OnOK()
// --- In  : 
// --- Out : 
// --- Returns :
// --- Effect : Called when the user clicks the OK button 
//				(the button with an ID of IDOK).
{
	// .... The directory edit control must exist within this dialog
	ASSERT(GetDlgItem(IDC_OX_DIRECTORY) != NULL);
	GetDlgItem(IDC_OX_DIRECTORY)->GetWindowText(m_sFullDir);

	BOOL bOK = TRUE;

	COXDirSpec fullDir;
	if (!fullDir.SetDirectory(m_sFullDir))
	{
		TRACE(_T("COXDirectoryDialog::OnOK : Invalid dir : %s\n"), (LPCTSTR)m_sFullDir);
		CString sPrompt;
		AfxFormatString1(sPrompt, IDS_OX_INVALID_DIR, (LPCTSTR)m_sFullDir);
		AfxMessageBox(sPrompt, MB_ICONEXCLAMATION, IDS_OX_INVALID_DIR);
		// ... Invalid dir specified
		bOK = FALSE;
	}
	else
	{
		if (!fullDir.Exists() && m_bNewDirAllowed)
		{
			CString sPrompt;
			AfxFormatString1(sPrompt, IDS_OX_CREATE_NEW_DIR, (LPCTSTR)m_sFullDir);
			if (AfxMessageBox(sPrompt, MB_ICONINFORMATION | MB_YESNO, IDS_OX_CREATE_NEW_DIR) == IDYES)
			{
				if (fullDir.DoMakeNew())
				{
					m_sExistingDir = fullDir.GetDirectory();
					//#ifndef OX_FILEMNG_NOCHANGECASE
					m_sFullDir = m_sExistingDir;
					//#endif
					m_bNewCreated=TRUE;
				}
				else
				{
					AfxMessageBox(IDS_OX_FAILED_CREATE_DIR, MB_ICONEXCLAMATION, IDS_OX_FAILED_CREATE_DIR);
					// .... Failed to create dir
					bOK = FALSE;
				}
			}
			else
			{
				// ... User did not allow to create a new directory
				bOK = FALSE;
			}
		}
		else
		{
			if (!fullDir.Exists() && !m_bNewDirAllowed)
			{
				AfxMessageBox(IDS_OX_NON_EXISTING_DIR, MB_ICONEXCLAMATION, IDS_OX_NON_EXISTING_DIR);
				// .... Directory does not exist and not allowed to create
				bOK = FALSE;
			}
		}
	}

	// ... If everything went OK, call base class implementation
	if (bOK)
		CFileDialog::OnOK();
	else
		// ... Set focus on invalid entry
		GetDlgItem(IDC_OX_DIRECTORY)->SetFocus();
}

void COXDirectoryDialog::OnCancel()
// --- In  : 
// --- Out : 
// --- Returns :
// --- Effect : Called when the user clicks the CANCEL button 
//				(the button with an ID of IDCANCEL).
{
	// ... Clear the result dir
	m_sFullDir.Empty();
	// ... Call base class implementation
	CFileDialog::OnCancel();
}

// private:

// Message handlers ---------------------------------------------------------

BEGIN_MESSAGE_MAP(COXDirectoryDialog, CFileDialog)
	//{{AFX_MSG_MAP(COXDirectoryDialog)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

// ==========================================================================