src/msw/filedlg.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/msw/filedlg.cpp
// Purpose:     wxFileDialog
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart and Markus Holzem
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#ifdef __GNUG__
    #pragma implementation "filedlg.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/utils.h"
    #include "wx/msgdlg.h"
    #include "wx/dialog.h"
    #include "wx/filedlg.h"
    #include "wx/intl.h"
    #include "wx/log.h"
    #include "wx/app.h"
#endif

#include "wx/msw/private.h"

#if !defined(__WIN32__) || defined(__SALFORDC__) || defined(__WXWINE__)
    #include <commdlg.h>
#endif

#include <math.h>
#include <stdlib.h>
#include <string.h>

#include "wx/tokenzr.h"

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

#ifdef __WIN32__
# define wxMAXPATH   4096
#else
# define wxMAXPATH   1024
#endif

# define wxMAXFILE   1024

# define wxMAXEXT    5

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------

IMPLEMENT_CLASS(wxFileDialog, wxDialog)

// ----------------------------------------------------------------------------
// global functions
// ----------------------------------------------------------------------------

wxString wxFileSelector(const wxChar *title,
                        const wxChar *defaultDir,
                        const wxChar *defaultFileName,
                        const wxChar *defaultExtension,
                        const wxChar *filter,
                        int flags,
                        wxWindow *parent,
                        int x, int y)
{
    // In the original implementation, defaultExtension is passed to the
    // lpstrDefExt member of OPENFILENAME. This extension, if non-NULL, is
    // appended to the filename if the user fails to type an extension. The new
    // implementation (taken from wxFileSelectorEx) appends the extension
    // automatically, by looking at the filter specification. In fact this
    // should be better than the native Microsoft implementation because
    // Windows only allows *one* default extension, whereas here we do the
    // right thing depending on the filter the user has chosen.

    // If there's a default extension specified but no filter, we create a
    // suitable filter.

    wxString filter2;
    if ( defaultExtension && !filter )
        filter2 = wxString(wxT("*.")) + defaultExtension;
    else if ( filter )
        filter2 = filter;

    wxString defaultDirString;
    if (defaultDir)
        defaultDirString = defaultDir;

    wxString defaultFilenameString;
    if (defaultFileName)
        defaultFilenameString = defaultFileName;

    wxFileDialog fileDialog(parent, title, defaultDirString,
                            defaultFilenameString, filter2,
                            flags, wxPoint(x, y));
    if( wxStrlen(defaultExtension) != 0 )
    {
        int filterFind = 1,
            filterIndex = 0;

        for( unsigned int i = 0; i < filter2.Len(); i++ )
        {
            if( filter2.GetChar(i) == wxT('|') )
            {
                // save the start index of the new filter
                unsigned int is = i++;
                filterIndex++;

                // find the end of the filter
                for( ; i < filter2.Len(); i++ )
                {
                    if(filter2[i] == wxT('|'))
                        break;
                }

                if( i-is-1 > 0 && is+1 < filter2.Len() )
                {
                    if( filter2.Mid(is+1,i-is-1).Contains(defaultExtension) )
//                    if( filter2.Mid(is+1,i-is-1) == defaultExtension )
                    {
                        filterFind = filterIndex;
                        break;
                    }
                }
            }
        }

        fileDialog.SetFilterIndex(filterFind);
    }

    wxString filename;
    if ( fileDialog.ShowModal() == wxID_OK )
    {
        filename = fileDialog.GetPath();
    }

    return filename;
}


wxString wxFileSelectorEx(const wxChar *title,
                       const wxChar *defaultDir,
                       const wxChar *defaultFileName,
                       int* defaultFilterIndex,
                       const wxChar *filter,
                       int       flags,
                       wxWindow* parent,
                       int       x,
                       int       y)

{
    wxFileDialog fileDialog(parent,
                            title ? title : wxT(""),
                            defaultDir ? defaultDir : wxT(""),
                            defaultFileName ? defaultFileName : wxT(""),
                            filter ? filter : wxT(""),
                            flags, wxPoint(x, y));

    wxString filename;
    if ( fileDialog.ShowModal() == wxID_OK )
    {
        if ( defaultFilterIndex )
            *defaultFilterIndex = fileDialog.GetFilterIndex();

        filename = fileDialog.GetPath();
    }

    return filename;
}

wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
        const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
        long style, const wxPoint& pos)
{
    m_message = message;
    m_dialogStyle = style;
    if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
        m_dialogStyle &= ~wxMULTIPLE;
    m_parent = parent;
    m_path = wxT("");
    m_fileName = defaultFileName;
    m_dir = defaultDir;
    m_wildCard = wildCard;
    m_filterIndex = 0;
}

void wxFileDialog::GetPaths(wxArrayString& paths) const
{
    paths.Empty();

    wxString dir(m_dir);
    if ( m_dir.Last() != _T('\\') )
        dir += _T('\\');

    size_t count = m_fileNames.GetCount();
    for ( size_t n = 0; n < count; n++ )
    {
        paths.Add(dir + m_fileNames[n]);
    }
}

int wxFileDialog::ShowModal()
{
    HWND hWnd = 0;
    if (m_parent) hWnd = (HWND) m_parent->GetHWND();
    if (!hWnd && wxTheApp->GetTopWindow())
        hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();

    static wxChar fileNameBuffer [ wxMAXPATH ];           // the file-name
    wxChar        titleBuffer    [ wxMAXFILE+1+wxMAXEXT ];  // the file-name, without path

    *fileNameBuffer = wxT('\0');
    *titleBuffer    = wxT('\0');

    long msw_flags = 0;
    if ( (m_dialogStyle & wxHIDE_READONLY) || (m_dialogStyle & wxSAVE) )
        msw_flags |= OFN_HIDEREADONLY;
    if ( m_dialogStyle & wxFILE_MUST_EXIST )
        msw_flags |= OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
    if (m_dialogStyle & wxMULTIPLE )
        msw_flags |=
#if defined(OFN_EXPLORER)
        OFN_EXPLORER |
#endif // OFN_EXPLORER
        OFN_ALLOWMULTISELECT;

    OPENFILENAME of;
    wxZeroMemory(of);

    // the OPENFILENAME struct has been extended in newer version of
    // comcdlg32.dll, but as we don't use the extended fields anyhow, set
    // the struct size to the old value - otherwise, the programs compiled
    // with new headers will not work with the old libraries
#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0500)
    of.lStructSize       = sizeof(OPENFILENAME) -
                           (sizeof(void *) + 2*sizeof(DWORD));
#else // old headers
    of.lStructSize       = sizeof(OPENFILENAME);
#endif

    of.hwndOwner         = hWnd;
    of.lpstrTitle        = WXSTRINGCAST m_message;
    of.lpstrFileTitle    = titleBuffer;
    of.nMaxFileTitle     = wxMAXFILE + 1 + wxMAXEXT;    // Windows 3.0 and 3.1

    // Convert forward slashes to backslashes (file selector doesn't like
    // forward slashes)
    size_t i = 0;
    size_t len = m_dir.Length();
    for (i = 0; i < len; i++)
        if (m_dir[i] == wxT('/'))
            m_dir[i] = wxT('\\');

    of.lpstrInitialDir   = m_dir.c_str();

    of.Flags             = msw_flags;


    //=== Like Alejandro Sierra's wildcard modification >>===================
    /*
       In wxFileSelector you can put, instead of a single wild_card,
       pairs of strings separated by '|'.
       The first string is a description, and the
       second is the wild card. You can put any number of pairs.

       eg.  "description1 (*.ex1)|*.ex1|description2 (*.ex2)|*.ex2"

       If you put a single wild card, it works as before the modification.
     */
    //=======================================================================

    wxString theFilter;
    if ( wxStrlen(m_wildCard) == 0 )
        theFilter = wxString(wxT("*.*"));
    else
        theFilter = m_wildCard ;
    wxString filterBuffer;

    if ( !wxStrchr( theFilter, wxT('|') ) ) {    // only one filter ==> default text
        filterBuffer.Printf(_("Files (%s)|%s"),
                            theFilter.c_str(), theFilter.c_str());
    }
    else {                                // more then one filter
        filterBuffer = theFilter;

    }

    filterBuffer += wxT("|");
    // Replace | with \0
    for (i = 0; i < filterBuffer.Len(); i++ ) {
        if ( filterBuffer.GetChar(i) == wxT('|') ) {
            filterBuffer[i] = wxT('\0');
        }
    }

    of.lpstrFilter  = (LPTSTR)(const wxChar *)filterBuffer;
    of.nFilterIndex = m_filterIndex + 1;

    //=== Setting defaultFileName >>=========================================

    wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
    fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');

    of.lpstrFile = fileNameBuffer;  // holds returned filename
    of.nMaxFile  = wxMAXPATH;

    //== Execute FileDialog >>=================================================

    bool success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
                                            : (GetOpenFileName(&of) != 0);

    DWORD errCode = CommDlgExtendedError();

#ifdef __WIN32__
    if (!success && (errCode == CDERR_STRUCTSIZE))
    {
        // The struct size has changed so try a smaller or bigger size

        int oldStructSize = of.lStructSize;
        of.lStructSize       = oldStructSize - (sizeof(void *) + 2*sizeof(DWORD));
        success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
                                            : (GetOpenFileName(&of) != 0);
        errCode = CommDlgExtendedError();

        if (!success && (errCode == CDERR_STRUCTSIZE))
        {
            of.lStructSize       = oldStructSize + (sizeof(void *) + 2*sizeof(DWORD));
            success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
                                            : (GetOpenFileName(&of) != 0);
        }
    }
#endif

    if ( success )
    {
        m_fileNames.Empty();

        if ( ( m_dialogStyle & wxMULTIPLE ) &&
#if defined(OFN_EXPLORER)
             ( fileNameBuffer[of.nFileOffset-1] == wxT('\0') ) )
#else
             ( fileNameBuffer[of.nFileOffset-1] == wxT(' ') ) )
#endif // OFN_EXPLORER
        {
#if defined(OFN_EXPLORER)
            m_dir = fileNameBuffer;
            i = of.nFileOffset;
            m_fileName = &fileNameBuffer[i];
            m_fileNames.Add(m_fileName);
            i += m_fileName.Len() + 1;

            while (fileNameBuffer[i] != wxT('\0'))
            {
                m_fileNames.Add(&fileNameBuffer[i]);
                i += wxStrlen(&fileNameBuffer[i]) + 1;
            }
#else
            wxStringTokenizer toke(fileNameBuffer, " \t\r\n");
            m_dir = toke.GetNextToken();
            m_fileName = toke.GetNextToken();
            m_fileNames.Add(m_fileName);

            while (toke.HasMoreTokens())
                m_fileNames.Add(toke.GetNextToken());
#endif // OFN_EXPLORER

            wxString dir(m_dir);
            if ( m_dir.Last() != _T('\\') )
                dir += _T('\\');

            m_fileNames.Sort();
            m_path = dir + m_fileName;
        }
        else
        {
            const wxChar* extension = NULL;

            //=== Adding the correct extension >>=================================

            m_filterIndex = (int)of.nFilterIndex - 1;

            if ( !of.nFileExtension || (of.nFileExtension && fileNameBuffer[ of.nFileExtension-1] != wxT('.')) )
            {                                    // user has typed an filename
                // without an extension:

                int   maxFilter = (int)(of.nFilterIndex*2L-1L);
                extension = filterBuffer;

                for( int i = 0; i < maxFilter; i++ ) {          // get extension
                    extension = extension + wxStrlen( extension ) +1;
                }

                extension = wxStrrchr( extension, wxT('.') );
                if (  extension                                 // != "blabla"
                        && !wxStrrchr( extension, wxT('*') )       // != "blabla.*"
                        && !wxStrrchr( extension, wxT('?') )       // != "blabla.?"
                        && extension[1]                           // != "blabla."
                        && extension[1] != wxT(' ') )              // != "blabla. "
                {
                    // now concat extension to the fileName:
                    m_fileName = wxString(fileNameBuffer) + extension;

                    int len = wxStrlen( fileNameBuffer );
                    wxStrncpy( fileNameBuffer + len, extension, wxMAXPATH - len );
                    fileNameBuffer[ wxMAXPATH -1 ] = wxT('\0');
                }
            }

            m_path = fileNameBuffer;
            m_fileName = wxFileNameFromPath(fileNameBuffer);
            m_fileNames.Add(m_fileName);
            m_dir = wxPathOnly(fileNameBuffer);
        }


        //=== Simulating the wxOVERWRITE_PROMPT >>============================

        if ( (m_dialogStyle & wxOVERWRITE_PROMPT) &&
             ::wxFileExists( fileNameBuffer ) )
        {
            wxString messageText;
            messageText.Printf(_("Replace file '%s'?"), fileNameBuffer);

            if ( wxMessageBox(messageText, m_message, wxYES_NO ) != wxYES )
            {
                success = FALSE;
            }
        }

    }
    else
    {
        // common dialog failed - why?
#ifdef __WXDEBUG__
        DWORD dwErr = CommDlgExtendedError();
        if ( dwErr != 0 )
        {
            // this msg is only for developers
            wxLogError(wxT("Common dialog failed with error code %0lx."),
                       dwErr);
        }
        //else: it was just cancelled
#endif
    }

    return success ? wxID_OK : wxID_CANCEL;

}

// Generic file load/save dialog (for internal use only)
static
wxString wxDefaultFileSelector(bool load,
                               const wxChar *what,
                               const wxChar *extension,
                               const wxChar *default_name,
                               wxWindow *parent)
{
  wxString prompt;
  wxString str;
  if (load) str = _("Load %s file");
  else str = _("Save %s file");
  prompt.Printf(str, what);

  const wxChar *ext = extension;
  if (*ext == wxT('.'))
      ext++;

  wxString wild;
  wild.Printf(wxT("*.%s"), ext);

  return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
}

// Generic file load dialog
WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
                                        const wxChar *extension,
                                        const wxChar *default_name,
                                        wxWindow *parent)
{
    return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
}

// Generic file save dialog
WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
                                        const wxChar *extension,
                                        const wxChar *default_name,
                                        wxWindow *parent)
{
    return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/msw/filedlg.cpp
	3	// Purpose: wxFileDialog
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 01/02/97
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart and Markus Holzem
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	#ifdef __GNUG__
	21	#pragma implementation "filedlg.h"
	22	#endif
	23
	24	// For compilers that support precompilation, includes "wx.h".
	25	#include "wx/wxprec.h"
	26
	27	#ifdef __BORLANDC__
	28	#pragma hdrstop
	29	#endif
	30
	31	#ifndef WX_PRECOMP
	32	#include "wx/utils.h"
	33	#include "wx/msgdlg.h"
	34	#include "wx/dialog.h"
	35	#include "wx/filedlg.h"
	36	#include "wx/intl.h"
	37	#include "wx/log.h"
	38	#include "wx/app.h"
	39	#endif
	40
	41	#include "wx/msw/private.h"
	42
	43	#if !defined(__WIN32__) \|\| defined(__SALFORDC__) \|\| defined(__WXWINE__)
	44	#include <commdlg.h>
	45	#endif
	46
	47	#include <math.h>
	48	#include <stdlib.h>
	49	#include <string.h>
	50
	51	#include "wx/tokenzr.h"
	52
	53	// ----------------------------------------------------------------------------
	54	// constants
	55	// ----------------------------------------------------------------------------
	56
	57	#ifdef __WIN32__
	58	# define wxMAXPATH 4096
	59	#else
	60	# define wxMAXPATH 1024
	61	#endif
	62
	63	# define wxMAXFILE 1024
	64
	65	# define wxMAXEXT 5
	66
	67	// ============================================================================
	68	// implementation
	69	// ============================================================================
	70
	71	// ----------------------------------------------------------------------------
	72	// wxWin macros
	73	// ----------------------------------------------------------------------------
	74
	75	IMPLEMENT_CLASS(wxFileDialog, wxDialog)
	76
	77	// ----------------------------------------------------------------------------
	78	// global functions
	79	// ----------------------------------------------------------------------------
	80
	81	wxString wxFileSelector(const wxChar *title,
	82	const wxChar *defaultDir,
	83	const wxChar *defaultFileName,
	84	const wxChar *defaultExtension,
	85	const wxChar *filter,
	86	int flags,
	87	wxWindow *parent,
	88	int x, int y)
	89	{
	90	// In the original implementation, defaultExtension is passed to the
	91	// lpstrDefExt member of OPENFILENAME. This extension, if non-NULL, is
	92	// appended to the filename if the user fails to type an extension. The new
	93	// implementation (taken from wxFileSelectorEx) appends the extension
	94	// automatically, by looking at the filter specification. In fact this
	95	// should be better than the native Microsoft implementation because
	96	// Windows only allows one default extension, whereas here we do the
	97	// right thing depending on the filter the user has chosen.
	98
	99	// If there's a default extension specified but no filter, we create a
	100	// suitable filter.
	101
	102	wxString filter2;
	103	if ( defaultExtension && !filter )
	104	filter2 = wxString(wxT("*.")) + defaultExtension;
	105	else if ( filter )
	106	filter2 = filter;
	107
	108	wxString defaultDirString;
	109	if (defaultDir)
	110	defaultDirString = defaultDir;
	111
	112	wxString defaultFilenameString;
	113	if (defaultFileName)
	114	defaultFilenameString = defaultFileName;
	115
	116	wxFileDialog fileDialog(parent, title, defaultDirString,
	117	defaultFilenameString, filter2,
	118	flags, wxPoint(x, y));
	119	if( wxStrlen(defaultExtension) != 0 )
	120	{
	121	int filterFind = 1,
	122	filterIndex = 0;
	123
	124	for( unsigned int i = 0; i < filter2.Len(); i++ )
	125	{
	126	if( filter2.GetChar(i) == wxT('\|') )
	127	{
	128	// save the start index of the new filter
	129	unsigned int is = i++;
	130	filterIndex++;
	131
	132	// find the end of the filter
	133	for( ; i < filter2.Len(); i++ )
	134	{
	135	if(filter2[i] == wxT('\|'))
	136	break;
	137	}
	138
	139	if( i-is-1 > 0 && is+1 < filter2.Len() )
	140	{
	141	if( filter2.Mid(is+1,i-is-1).Contains(defaultExtension) )
	142	// if( filter2.Mid(is+1,i-is-1) == defaultExtension )
	143	{
	144	filterFind = filterIndex;
	145	break;
	146	}
	147	}
	148	}
	149	}
	150
	151	fileDialog.SetFilterIndex(filterFind);
	152	}
	153
	154	wxString filename;
	155	if ( fileDialog.ShowModal() == wxID_OK )
	156	{
	157	filename = fileDialog.GetPath();
	158	}
	159
	160	return filename;
	161	}
	162
	163
	164	wxString wxFileSelectorEx(const wxChar *title,
	165	const wxChar *defaultDir,
	166	const wxChar *defaultFileName,
	167	int* defaultFilterIndex,
	168	const wxChar *filter,
	169	int flags,
	170	wxWindow* parent,
	171	int x,
	172	int y)
	173
	174	{
	175	wxFileDialog fileDialog(parent,
	176	title ? title : wxT(""),
	177	defaultDir ? defaultDir : wxT(""),
	178	defaultFileName ? defaultFileName : wxT(""),
	179	filter ? filter : wxT(""),
	180	flags, wxPoint(x, y));
	181
	182	wxString filename;
	183	if ( fileDialog.ShowModal() == wxID_OK )
	184	{
	185	if ( defaultFilterIndex )
	186	*defaultFilterIndex = fileDialog.GetFilterIndex();
	187
	188	filename = fileDialog.GetPath();
	189	}
	190
	191	return filename;
	192	}
	193
	194	wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
	195	const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
	196	long style, const wxPoint& pos)
	197	{
	198	m_message = message;
	199	m_dialogStyle = style;
	200	if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
	201	m_dialogStyle &= ~wxMULTIPLE;
	202	m_parent = parent;
	203	m_path = wxT("");
	204	m_fileName = defaultFileName;
	205	m_dir = defaultDir;
	206	m_wildCard = wildCard;
	207	m_filterIndex = 0;
	208	}
	209
	210	void wxFileDialog::GetPaths(wxArrayString& paths) const
	211	{
	212	paths.Empty();
	213
	214	wxString dir(m_dir);
	215	if ( m_dir.Last() != _T('\\') )
	216	dir += _T('\\');
	217
	218	size_t count = m_fileNames.GetCount();
	219	for ( size_t n = 0; n < count; n++ )
	220	{
	221	paths.Add(dir + m_fileNames[n]);
	222	}
	223	}
	224
	225	int wxFileDialog::ShowModal()
	226	{
	227	HWND hWnd = 0;
	228	if (m_parent) hWnd = (HWND) m_parent->GetHWND();
	229	if (!hWnd && wxTheApp->GetTopWindow())
	230	hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();
	231
	232	static wxChar fileNameBuffer [ wxMAXPATH ]; // the file-name
	233	wxChar titleBuffer [ wxMAXFILE+1+wxMAXEXT ]; // the file-name, without path
	234
	235	*fileNameBuffer = wxT('\0');
	236	*titleBuffer = wxT('\0');
	237
	238	long msw_flags = 0;
	239	if ( (m_dialogStyle & wxHIDE_READONLY) \|\| (m_dialogStyle & wxSAVE) )
	240	msw_flags \|= OFN_HIDEREADONLY;
	241	if ( m_dialogStyle & wxFILE_MUST_EXIST )
	242	msw_flags \|= OFN_PATHMUSTEXIST \| OFN_FILEMUSTEXIST;
	243	if (m_dialogStyle & wxMULTIPLE )
	244	msw_flags \|=
	245	#if defined(OFN_EXPLORER)
	246	OFN_EXPLORER \|
	247	#endif // OFN_EXPLORER
	248	OFN_ALLOWMULTISELECT;
	249
	250	OPENFILENAME of;
	251	wxZeroMemory(of);
	252
	253	// the OPENFILENAME struct has been extended in newer version of
	254	// comcdlg32.dll, but as we don't use the extended fields anyhow, set
	255	// the struct size to the old value - otherwise, the programs compiled
	256	// with new headers will not work with the old libraries
	257	#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0500)
	258	of.lStructSize = sizeof(OPENFILENAME) -
	259	(sizeof(void ) + 2sizeof(DWORD));
	260	#else // old headers
	261	of.lStructSize = sizeof(OPENFILENAME);
	262	#endif
	263
	264	of.hwndOwner = hWnd;
	265	of.lpstrTitle = WXSTRINGCAST m_message;
	266	of.lpstrFileTitle = titleBuffer;
	267	of.nMaxFileTitle = wxMAXFILE + 1 + wxMAXEXT; // Windows 3.0 and 3.1
	268
	269	// Convert forward slashes to backslashes (file selector doesn't like
	270	// forward slashes)
	271	size_t i = 0;
	272	size_t len = m_dir.Length();
	273	for (i = 0; i < len; i++)
	274	if (m_dir[i] == wxT('/'))
	275	m_dir[i] = wxT('\\');
	276
	277	of.lpstrInitialDir = m_dir.c_str();
	278
	279	of.Flags = msw_flags;
	280
	281
	282	//=== Like Alejandro Sierra's wildcard modification >>===================
	283	/*
	284	In wxFileSelector you can put, instead of a single wild_card,
	285	pairs of strings separated by '\|'.
	286	The first string is a description, and the
	287	second is the wild card. You can put any number of pairs.
	288
	289	eg. "description1 (.ex1)\|.ex1\|description2 (.ex2)\|.ex2"
	290
	291	If you put a single wild card, it works as before the modification.
	292	*/
	293	//=======================================================================
	294
	295	wxString theFilter;
	296	if ( wxStrlen(m_wildCard) == 0 )
	297	theFilter = wxString(wxT("."));
	298	else
	299	theFilter = m_wildCard ;
	300	wxString filterBuffer;
	301
	302	if ( !wxStrchr( theFilter, wxT('\|') ) ) { // only one filter ==> default text
	303	filterBuffer.Printf(_("Files (%s)\|%s"),
	304	theFilter.c_str(), theFilter.c_str());
	305	}
	306	else { // more then one filter
	307	filterBuffer = theFilter;
	308
	309	}
	310
	311	filterBuffer += wxT("\|");
	312	// Replace \| with \0
	313	for (i = 0; i < filterBuffer.Len(); i++ ) {
	314	if ( filterBuffer.GetChar(i) == wxT('\|') ) {
	315	filterBuffer[i] = wxT('\0');
	316	}
	317	}
	318
	319	of.lpstrFilter = (LPTSTR)(const wxChar *)filterBuffer;
	320	of.nFilterIndex = m_filterIndex + 1;
	321
	322	//=== Setting defaultFileName >>=========================================
	323
	324	wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
	325	fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');
	326
	327	of.lpstrFile = fileNameBuffer; // holds returned filename
	328	of.nMaxFile = wxMAXPATH;
	329
	330	//== Execute FileDialog >>=================================================
	331
	332	bool success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
	333	: (GetOpenFileName(&of) != 0);
	334
	335	DWORD errCode = CommDlgExtendedError();
	336
	337	#ifdef __WIN32__
	338	if (!success && (errCode == CDERR_STRUCTSIZE))
	339	{
	340	// The struct size has changed so try a smaller or bigger size
	341
	342	int oldStructSize = of.lStructSize;
	343	of.lStructSize = oldStructSize - (sizeof(void ) + 2sizeof(DWORD));
	344	success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
	345	: (GetOpenFileName(&of) != 0);
	346	errCode = CommDlgExtendedError();
	347
	348	if (!success && (errCode == CDERR_STRUCTSIZE))
	349	{
	350	of.lStructSize = oldStructSize + (sizeof(void ) + 2sizeof(DWORD));
	351	success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
	352	: (GetOpenFileName(&of) != 0);
	353	}
	354	}
	355	#endif
	356
	357	if ( success )
	358	{
	359	m_fileNames.Empty();
	360
	361	if ( ( m_dialogStyle & wxMULTIPLE ) &&
	362	#if defined(OFN_EXPLORER)
	363	( fileNameBuffer[of.nFileOffset-1] == wxT('\0') ) )
	364	#else
	365	( fileNameBuffer[of.nFileOffset-1] == wxT(' ') ) )
	366	#endif // OFN_EXPLORER
	367	{
	368	#if defined(OFN_EXPLORER)
	369	m_dir = fileNameBuffer;
	370	i = of.nFileOffset;
	371	m_fileName = &fileNameBuffer[i];
	372	m_fileNames.Add(m_fileName);
	373	i += m_fileName.Len() + 1;
	374
	375	while (fileNameBuffer[i] != wxT('\0'))
	376	{
	377	m_fileNames.Add(&fileNameBuffer[i]);
	378	i += wxStrlen(&fileNameBuffer[i]) + 1;
	379	}
	380	#else
	381	wxStringTokenizer toke(fileNameBuffer, " \t\r\n");
	382	m_dir = toke.GetNextToken();
	383	m_fileName = toke.GetNextToken();
	384	m_fileNames.Add(m_fileName);
	385
	386	while (toke.HasMoreTokens())
	387	m_fileNames.Add(toke.GetNextToken());
	388	#endif // OFN_EXPLORER
	389
	390	wxString dir(m_dir);
	391	if ( m_dir.Last() != _T('\\') )
	392	dir += _T('\\');
	393
	394	m_fileNames.Sort();
	395	m_path = dir + m_fileName;
	396	}
	397	else
	398	{
	399	const wxChar* extension = NULL;
	400
	401	//=== Adding the correct extension >>=================================
	402
	403	m_filterIndex = (int)of.nFilterIndex - 1;
	404
	405	if ( !of.nFileExtension \|\| (of.nFileExtension && fileNameBuffer[ of.nFileExtension-1] != wxT('.')) )
	406	{ // user has typed an filename
	407	// without an extension:
	408
	409	int maxFilter = (int)(of.nFilterIndex*2L-1L);
	410	extension = filterBuffer;
	411
	412	for( int i = 0; i < maxFilter; i++ ) { // get extension
	413	extension = extension + wxStrlen( extension ) +1;
	414	}
	415
	416	extension = wxStrrchr( extension, wxT('.') );
	417	if ( extension // != "blabla"
	418	&& !wxStrrchr( extension, wxT('') ) // != "blabla."
	419	&& !wxStrrchr( extension, wxT('?') ) // != "blabla.?"
	420	&& extension[1] // != "blabla."
	421	&& extension[1] != wxT(' ') ) // != "blabla. "
	422	{
	423	// now concat extension to the fileName:
	424	m_fileName = wxString(fileNameBuffer) + extension;
	425
	426	int len = wxStrlen( fileNameBuffer );
	427	wxStrncpy( fileNameBuffer + len, extension, wxMAXPATH - len );
	428	fileNameBuffer[ wxMAXPATH -1 ] = wxT('\0');
	429	}
	430	}
	431
	432	m_path = fileNameBuffer;
	433	m_fileName = wxFileNameFromPath(fileNameBuffer);
	434	m_fileNames.Add(m_fileName);
	435	m_dir = wxPathOnly(fileNameBuffer);
	436	}
	437
	438
	439	//=== Simulating the wxOVERWRITE_PROMPT >>============================
	440
	441	if ( (m_dialogStyle & wxOVERWRITE_PROMPT) &&
	442	::wxFileExists( fileNameBuffer ) )
	443	{
	444	wxString messageText;
	445	messageText.Printf(_("Replace file '%s'?"), fileNameBuffer);
	446
	447	if ( wxMessageBox(messageText, m_message, wxYES_NO ) != wxYES )
	448	{
	449	success = FALSE;
	450	}
	451	}
	452
	453	}
	454	else
	455	{
	456	// common dialog failed - why?
	457	#ifdef __WXDEBUG__
	458	DWORD dwErr = CommDlgExtendedError();
	459	if ( dwErr != 0 )
	460	{
	461	// this msg is only for developers
	462	wxLogError(wxT("Common dialog failed with error code %0lx."),
	463	dwErr);
	464	}
	465	//else: it was just cancelled
	466	#endif
	467	}
	468
	469	return success ? wxID_OK : wxID_CANCEL;
	470
	471	}
	472
	473	// Generic file load/save dialog (for internal use only)
	474	static
	475	wxString wxDefaultFileSelector(bool load,
	476	const wxChar *what,
	477	const wxChar *extension,
	478	const wxChar *default_name,
	479	wxWindow *parent)
	480	{
	481	wxString prompt;
	482	wxString str;
	483	if (load) str = _("Load %s file");
	484	else str = _("Save %s file");
	485	prompt.Printf(str, what);
	486
	487	const wxChar *ext = extension;
	488	if (*ext == wxT('.'))
	489	ext++;
	490
	491	wxString wild;
	492	wild.Printf(wxT("*.%s"), ext);
	493
	494	return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
	495	}
	496
	497	// Generic file load dialog
	498	WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
	499	const wxChar *extension,
	500	const wxChar *default_name,
	501	wxWindow *parent)
	502	{
	503	return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
	504	}
	505
	506	// Generic file save dialog
	507	WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
	508	const wxChar *extension,
	509	const wxChar *default_name,
	510	wxWindow *parent)
	511	{
	512	return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
	513	}
	514
	515